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annotate src/cpu/ppc/vm/sharedRuntime_ppc.cpp @ 14684:e5e8aa897002

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8035647: PPC64: Support for elf v2 abi. Summary: ELFv2 ABI used by the little endian PowerPC64 on Linux. Reviewed-by: kvn Contributed-by: asmundak@google.com
author goetz
date Thu, 06 Mar 2014 10:55:28 -0800
parents 67fa91961822
children 58cf34613a72
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1 /*
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * Copyright 2012, 2013 SAP AG. All rights reserved.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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21 * or visit www.oracle.com if you need additional information or have any
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22 * questions.
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23 *
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24 */
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25
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26 #include "precompiled.hpp"
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27 #include "asm/macroAssembler.inline.hpp"
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28 #include "code/debugInfoRec.hpp"
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29 #include "code/icBuffer.hpp"
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30 #include "code/vtableStubs.hpp"
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31 #include "interpreter/interpreter.hpp"
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32 #include "oops/compiledICHolder.hpp"
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33 #include "prims/jvmtiRedefineClassesTrace.hpp"
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34 #include "runtime/sharedRuntime.hpp"
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35 #include "runtime/vframeArray.hpp"
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36 #include "vmreg_ppc.inline.hpp"
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37 #ifdef COMPILER1
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38 #include "c1/c1_Runtime1.hpp"
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39 #endif
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40 #ifdef COMPILER2
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41 #include "opto/runtime.hpp"
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42 #endif
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43
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44 #define __ masm->
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45
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46 #ifdef PRODUCT
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47 #define BLOCK_COMMENT(str) // nothing
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48 #else
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49 #define BLOCK_COMMENT(str) __ block_comment(str)
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50 #endif
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51
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52 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":")
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53
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54
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55 // Used by generate_deopt_blob. Defined in .ad file.
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56 extern uint size_deopt_handler();
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57
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58
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59 class RegisterSaver {
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60 // Used for saving volatile registers.
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61 public:
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62
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63 // Support different return pc locations.
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64 enum ReturnPCLocation {
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65 return_pc_is_lr,
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66 return_pc_is_r4,
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67 return_pc_is_thread_saved_exception_pc
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68 };
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69
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70 static OopMap* push_frame_reg_args_and_save_live_registers(MacroAssembler* masm,
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71 int* out_frame_size_in_bytes,
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72 bool generate_oop_map,
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73 int return_pc_adjustment,
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74 ReturnPCLocation return_pc_location);
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75 static void restore_live_registers_and_pop_frame(MacroAssembler* masm,
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76 int frame_size_in_bytes,
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77 bool restore_ctr);
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78
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79 static void push_frame_and_save_argument_registers(MacroAssembler* masm,
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80 Register r_temp,
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81 int frame_size,
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82 int total_args,
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83 const VMRegPair *regs, const VMRegPair *regs2 = NULL);
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84 static void restore_argument_registers_and_pop_frame(MacroAssembler*masm,
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85 int frame_size,
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86 int total_args,
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87 const VMRegPair *regs, const VMRegPair *regs2 = NULL);
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88
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89 // During deoptimization only the result registers need to be restored
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90 // all the other values have already been extracted.
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91 static void restore_result_registers(MacroAssembler* masm, int frame_size_in_bytes);
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92
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93 // Constants and data structures:
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94
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95 typedef enum {
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96 int_reg = 0,
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97 float_reg = 1,
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98 special_reg = 2
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99 } RegisterType;
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100
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101 typedef enum {
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102 reg_size = 8,
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103 half_reg_size = reg_size / 2,
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104 } RegisterConstants;
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105
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106 typedef struct {
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107 RegisterType reg_type;
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108 int reg_num;
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109 VMReg vmreg;
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110 } LiveRegType;
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111 };
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112
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113
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114 #define RegisterSaver_LiveSpecialReg(regname) \
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115 { RegisterSaver::special_reg, regname->encoding(), regname->as_VMReg() }
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116
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117 #define RegisterSaver_LiveIntReg(regname) \
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118 { RegisterSaver::int_reg, regname->encoding(), regname->as_VMReg() }
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119
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120 #define RegisterSaver_LiveFloatReg(regname) \
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121 { RegisterSaver::float_reg, regname->encoding(), regname->as_VMReg() }
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122
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123 static const RegisterSaver::LiveRegType RegisterSaver_LiveRegs[] = {
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124 // Live registers which get spilled to the stack. Register
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125 // positions in this array correspond directly to the stack layout.
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126
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127 //
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128 // live special registers:
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129 //
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130 RegisterSaver_LiveSpecialReg(SR_CTR),
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131 //
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132 // live float registers:
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133 //
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134 RegisterSaver_LiveFloatReg( F0 ),
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135 RegisterSaver_LiveFloatReg( F1 ),
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136 RegisterSaver_LiveFloatReg( F2 ),
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137 RegisterSaver_LiveFloatReg( F3 ),
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138 RegisterSaver_LiveFloatReg( F4 ),
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139 RegisterSaver_LiveFloatReg( F5 ),
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140 RegisterSaver_LiveFloatReg( F6 ),
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141 RegisterSaver_LiveFloatReg( F7 ),
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142 RegisterSaver_LiveFloatReg( F8 ),
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143 RegisterSaver_LiveFloatReg( F9 ),
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144 RegisterSaver_LiveFloatReg( F10 ),
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145 RegisterSaver_LiveFloatReg( F11 ),
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146 RegisterSaver_LiveFloatReg( F12 ),
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147 RegisterSaver_LiveFloatReg( F13 ),
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148 RegisterSaver_LiveFloatReg( F14 ),
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149 RegisterSaver_LiveFloatReg( F15 ),
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150 RegisterSaver_LiveFloatReg( F16 ),
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151 RegisterSaver_LiveFloatReg( F17 ),
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152 RegisterSaver_LiveFloatReg( F18 ),
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153 RegisterSaver_LiveFloatReg( F19 ),
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154 RegisterSaver_LiveFloatReg( F20 ),
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155 RegisterSaver_LiveFloatReg( F21 ),
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parents:
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156 RegisterSaver_LiveFloatReg( F22 ),
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parents:
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157 RegisterSaver_LiveFloatReg( F23 ),
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parents:
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158 RegisterSaver_LiveFloatReg( F24 ),
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parents:
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159 RegisterSaver_LiveFloatReg( F25 ),
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parents:
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160 RegisterSaver_LiveFloatReg( F26 ),
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parents:
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161 RegisterSaver_LiveFloatReg( F27 ),
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parents:
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162 RegisterSaver_LiveFloatReg( F28 ),
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parents:
diff changeset
163 RegisterSaver_LiveFloatReg( F29 ),
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parents:
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164 RegisterSaver_LiveFloatReg( F30 ),
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165 RegisterSaver_LiveFloatReg( F31 ),
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166 //
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167 // live integer registers:
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168 //
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169 RegisterSaver_LiveIntReg( R0 ),
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170 //RegisterSaver_LiveIntReg( R1 ), // stack pointer
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171 RegisterSaver_LiveIntReg( R2 ),
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172 RegisterSaver_LiveIntReg( R3 ),
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parents:
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173 RegisterSaver_LiveIntReg( R4 ),
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parents:
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174 RegisterSaver_LiveIntReg( R5 ),
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parents:
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175 RegisterSaver_LiveIntReg( R6 ),
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parents:
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176 RegisterSaver_LiveIntReg( R7 ),
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177 RegisterSaver_LiveIntReg( R8 ),
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parents:
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178 RegisterSaver_LiveIntReg( R9 ),
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parents:
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179 RegisterSaver_LiveIntReg( R10 ),
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180 RegisterSaver_LiveIntReg( R11 ),
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181 RegisterSaver_LiveIntReg( R12 ),
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182 //RegisterSaver_LiveIntReg( R13 ), // system thread id
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183 RegisterSaver_LiveIntReg( R14 ),
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184 RegisterSaver_LiveIntReg( R15 ),
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185 RegisterSaver_LiveIntReg( R16 ),
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parents:
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186 RegisterSaver_LiveIntReg( R17 ),
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parents:
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187 RegisterSaver_LiveIntReg( R18 ),
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parents:
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188 RegisterSaver_LiveIntReg( R19 ),
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parents:
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189 RegisterSaver_LiveIntReg( R20 ),
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parents:
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190 RegisterSaver_LiveIntReg( R21 ),
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parents:
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191 RegisterSaver_LiveIntReg( R22 ),
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parents:
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192 RegisterSaver_LiveIntReg( R23 ),
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parents:
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193 RegisterSaver_LiveIntReg( R24 ),
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parents:
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194 RegisterSaver_LiveIntReg( R25 ),
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parents:
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195 RegisterSaver_LiveIntReg( R26 ),
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parents:
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196 RegisterSaver_LiveIntReg( R27 ),
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parents:
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197 RegisterSaver_LiveIntReg( R28 ),
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parents:
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198 RegisterSaver_LiveIntReg( R29 ),
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199 RegisterSaver_LiveIntReg( R31 ),
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200 RegisterSaver_LiveIntReg( R30 ), // r30 must be the last register
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201 };
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202
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203 OopMap* RegisterSaver::push_frame_reg_args_and_save_live_registers(MacroAssembler* masm,
14408
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204 int* out_frame_size_in_bytes,
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205 bool generate_oop_map,
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206 int return_pc_adjustment,
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207 ReturnPCLocation return_pc_location) {
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208 // Push an abi_reg_args-frame and store all registers which may be live.
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209 // If requested, create an OopMap: Record volatile registers as
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210 // callee-save values in an OopMap so their save locations will be
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211 // propagated to the RegisterMap of the caller frame during
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212 // StackFrameStream construction (needed for deoptimization; see
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213 // compiledVFrame::create_stack_value).
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214 // If return_pc_adjustment != 0 adjust the return pc by return_pc_adjustment.
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215
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216 int i;
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217 int offset;
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218
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219 // calcualte frame size
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220 const int regstosave_num = sizeof(RegisterSaver_LiveRegs) /
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221 sizeof(RegisterSaver::LiveRegType);
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222 const int register_save_size = regstosave_num * reg_size;
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223 const int frame_size_in_bytes = round_to(register_save_size, frame::alignment_in_bytes)
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224 + frame::abi_reg_args_size;
14408
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225 *out_frame_size_in_bytes = frame_size_in_bytes;
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226 const int frame_size_in_slots = frame_size_in_bytes / sizeof(jint);
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227 const int register_save_offset = frame_size_in_bytes - register_save_size;
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228
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229 // OopMap frame size is in c2 stack slots (sizeof(jint)) not bytes or words.
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230 OopMap* map = generate_oop_map ? new OopMap(frame_size_in_slots, 0) : NULL;
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231
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232 BLOCK_COMMENT("push_frame_reg_args_and_save_live_registers {");
14408
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233
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234 // Save r30 in the last slot of the not yet pushed frame so that we
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235 // can use it as scratch reg.
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236 __ std(R30, -reg_size, R1_SP);
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237 assert(-reg_size == register_save_offset - frame_size_in_bytes + ((regstosave_num-1)*reg_size),
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238 "consistency check");
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239
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240 // save the flags
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241 // Do the save_LR_CR by hand and adjust the return pc if requested.
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242 __ mfcr(R30);
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243 __ std(R30, _abi(cr), R1_SP);
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244 switch (return_pc_location) {
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245 case return_pc_is_lr: __ mflr(R30); break;
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246 case return_pc_is_r4: __ mr(R30, R4); break;
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247 case return_pc_is_thread_saved_exception_pc:
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248 __ ld(R30, thread_(saved_exception_pc)); break;
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249 default: ShouldNotReachHere();
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250 }
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251 if (return_pc_adjustment != 0)
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252 __ addi(R30, R30, return_pc_adjustment);
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253 __ std(R30, _abi(lr), R1_SP);
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254
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255 // push a new frame
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256 __ push_frame(frame_size_in_bytes, R30);
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257
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258 // save all registers (ints and floats)
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259 offset = register_save_offset;
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260 for (int i = 0; i < regstosave_num; i++) {
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261 int reg_num = RegisterSaver_LiveRegs[i].reg_num;
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262 int reg_type = RegisterSaver_LiveRegs[i].reg_type;
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263
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264 switch (reg_type) {
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265 case RegisterSaver::int_reg: {
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266 if (reg_num != 30) { // We spilled R30 right at the beginning.
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267 __ std(as_Register(reg_num), offset, R1_SP);
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268 }
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269 break;
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270 }
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271 case RegisterSaver::float_reg: {
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272 __ stfd(as_FloatRegister(reg_num), offset, R1_SP);
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273 break;
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274 }
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275 case RegisterSaver::special_reg: {
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276 if (reg_num == SR_CTR_SpecialRegisterEnumValue) {
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277 __ mfctr(R30);
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278 __ std(R30, offset, R1_SP);
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279 } else {
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280 Unimplemented();
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281 }
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282 break;
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283 }
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284 default:
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285 ShouldNotReachHere();
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286 }
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parents:
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287
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288 if (generate_oop_map) {
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289 map->set_callee_saved(VMRegImpl::stack2reg(offset>>2),
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290 RegisterSaver_LiveRegs[i].vmreg);
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291 map->set_callee_saved(VMRegImpl::stack2reg((offset + half_reg_size)>>2),
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292 RegisterSaver_LiveRegs[i].vmreg->next());
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293 }
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294 offset += reg_size;
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295 }
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296
14684
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297 BLOCK_COMMENT("} push_frame_reg_args_and_save_live_registers");
14408
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298
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299 // And we're done.
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300 return map;
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parents:
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301 }
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302
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303
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304 // Pop the current frame and restore all the registers that we
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305 // saved.
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306 void RegisterSaver::restore_live_registers_and_pop_frame(MacroAssembler* masm,
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parents:
diff changeset
307 int frame_size_in_bytes,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
308 bool restore_ctr) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
309 int i;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
310 int offset;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
311 const int regstosave_num = sizeof(RegisterSaver_LiveRegs) /
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
312 sizeof(RegisterSaver::LiveRegType);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
313 const int register_save_size = regstosave_num * reg_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
314 const int register_save_offset = frame_size_in_bytes - register_save_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
315
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
316 BLOCK_COMMENT("restore_live_registers_and_pop_frame {");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
317
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
318 // restore all registers (ints and floats)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
319 offset = register_save_offset;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
320 for (int i = 0; i < regstosave_num; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
321 int reg_num = RegisterSaver_LiveRegs[i].reg_num;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
322 int reg_type = RegisterSaver_LiveRegs[i].reg_type;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
323
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
324 switch (reg_type) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
325 case RegisterSaver::int_reg: {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
326 if (reg_num != 30) // R30 restored at the end, it's the tmp reg!
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
327 __ ld(as_Register(reg_num), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
328 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
329 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
330 case RegisterSaver::float_reg: {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
331 __ lfd(as_FloatRegister(reg_num), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
332 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
333 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
334 case RegisterSaver::special_reg: {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
335 if (reg_num == SR_CTR_SpecialRegisterEnumValue) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
336 if (restore_ctr) { // Nothing to do here if ctr already contains the next address.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
337 __ ld(R30, offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
338 __ mtctr(R30);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
339 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
340 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
341 Unimplemented();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
342 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
343 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
344 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
345 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
346 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
347 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
348 offset += reg_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
349 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
350
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
351 // pop the frame
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
352 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
353
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
354 // restore the flags
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
355 __ restore_LR_CR(R30);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
356
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
357 // restore scratch register's value
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
358 __ ld(R30, -reg_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
359
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
360 BLOCK_COMMENT("} restore_live_registers_and_pop_frame");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
361 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
362
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
363 void RegisterSaver::push_frame_and_save_argument_registers(MacroAssembler* masm, Register r_temp,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
364 int frame_size,int total_args, const VMRegPair *regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
365 const VMRegPair *regs2) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
366 __ push_frame(frame_size, r_temp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
367 int st_off = frame_size - wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
368 for (int i = 0; i < total_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
369 VMReg r_1 = regs[i].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
370 VMReg r_2 = regs[i].second();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
371 if (!r_1->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
372 assert(!r_2->is_valid(), "");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
373 continue;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
374 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
375 if (r_1->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
376 Register r = r_1->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
377 __ std(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
378 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
379 } else if (r_1->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
380 FloatRegister f = r_1->as_FloatRegister();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
381 __ stfd(f, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
382 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
383 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
384 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
385 if (regs2 != NULL) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
386 for (int i = 0; i < total_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
387 VMReg r_1 = regs2[i].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
388 VMReg r_2 = regs2[i].second();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
389 if (!r_1->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
390 assert(!r_2->is_valid(), "");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
391 continue;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
392 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
393 if (r_1->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
394 Register r = r_1->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
395 __ std(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
396 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
397 } else if (r_1->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
398 FloatRegister f = r_1->as_FloatRegister();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
399 __ stfd(f, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
400 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
401 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
402 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
403 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
404 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
405
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
406 void RegisterSaver::restore_argument_registers_and_pop_frame(MacroAssembler*masm, int frame_size,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
407 int total_args, const VMRegPair *regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
408 const VMRegPair *regs2) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
409 int st_off = frame_size - wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
410 for (int i = 0; i < total_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
411 VMReg r_1 = regs[i].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
412 VMReg r_2 = regs[i].second();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
413 if (r_1->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
414 Register r = r_1->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
415 __ ld(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
416 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
417 } else if (r_1->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
418 FloatRegister f = r_1->as_FloatRegister();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
419 __ lfd(f, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
420 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
421 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
422 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
423 if (regs2 != NULL)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
424 for (int i = 0; i < total_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
425 VMReg r_1 = regs2[i].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
426 VMReg r_2 = regs2[i].second();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
427 if (r_1->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
428 Register r = r_1->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
429 __ ld(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
430 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
431 } else if (r_1->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
432 FloatRegister f = r_1->as_FloatRegister();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
433 __ lfd(f, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
434 st_off -= wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
435 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
436 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
437 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
438 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
439
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
440 // Restore the registers that might be holding a result.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
441 void RegisterSaver::restore_result_registers(MacroAssembler* masm, int frame_size_in_bytes) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
442 int i;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
443 int offset;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
444 const int regstosave_num = sizeof(RegisterSaver_LiveRegs) /
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
445 sizeof(RegisterSaver::LiveRegType);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
446 const int register_save_size = regstosave_num * reg_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
447 const int register_save_offset = frame_size_in_bytes - register_save_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
448
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
449 // restore all result registers (ints and floats)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
450 offset = register_save_offset;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
451 for (int i = 0; i < regstosave_num; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
452 int reg_num = RegisterSaver_LiveRegs[i].reg_num;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
453 int reg_type = RegisterSaver_LiveRegs[i].reg_type;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
454 switch (reg_type) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
455 case RegisterSaver::int_reg: {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
456 if (as_Register(reg_num)==R3_RET) // int result_reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
457 __ ld(as_Register(reg_num), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
458 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
459 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
460 case RegisterSaver::float_reg: {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
461 if (as_FloatRegister(reg_num)==F1_RET) // float result_reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
462 __ lfd(as_FloatRegister(reg_num), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
463 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
464 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
465 case RegisterSaver::special_reg: {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
466 // Special registers don't hold a result.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
467 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
468 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
469 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
470 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
471 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
472 offset += reg_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
473 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
474 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
475
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
476 // Is vector's size (in bytes) bigger than a size saved by default?
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
477 bool SharedRuntime::is_wide_vector(int size) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
478 ResourceMark rm;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
479 // Note, MaxVectorSize == 8 on PPC64.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
480 assert(size <= 8, err_msg_res("%d bytes vectors are not supported", size));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
481 return size > 8;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
482 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
483 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
484 static int reg2slot(VMReg r) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
485 return r->reg2stack() + SharedRuntime::out_preserve_stack_slots();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
486 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
487
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
488 static int reg2offset(VMReg r) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
489 return (r->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
490 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
491 #endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
492
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
493 // ---------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
494 // Read the array of BasicTypes from a signature, and compute where the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
495 // arguments should go. Values in the VMRegPair regs array refer to 4-byte
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
496 // quantities. Values less than VMRegImpl::stack0 are registers, those above
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
497 // refer to 4-byte stack slots. All stack slots are based off of the stack pointer
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
498 // as framesizes are fixed.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
499 // VMRegImpl::stack0 refers to the first slot 0(sp).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
500 // and VMRegImpl::stack0+1 refers to the memory word 4-bytes higher. Register
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
501 // up to RegisterImpl::number_of_registers) are the 64-bit
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
502 // integer registers.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
503
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
504 // Note: the INPUTS in sig_bt are in units of Java argument words, which are
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
505 // either 32-bit or 64-bit depending on the build. The OUTPUTS are in 32-bit
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
506 // units regardless of build. Of course for i486 there is no 64 bit build
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
507
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
508 // The Java calling convention is a "shifted" version of the C ABI.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
509 // By skipping the first C ABI register we can call non-static jni methods
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
510 // with small numbers of arguments without having to shuffle the arguments
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
511 // at all. Since we control the java ABI we ought to at least get some
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
512 // advantage out of it.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
513
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
514 const VMReg java_iarg_reg[8] = {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
515 R3->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
516 R4->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
517 R5->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
518 R6->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
519 R7->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
520 R8->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
521 R9->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
522 R10->as_VMReg()
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
523 };
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
524
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
525 const VMReg java_farg_reg[13] = {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
526 F1->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
527 F2->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
528 F3->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
529 F4->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
530 F5->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
531 F6->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
532 F7->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
533 F8->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
534 F9->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
535 F10->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
536 F11->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
537 F12->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
538 F13->as_VMReg()
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
539 };
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
540
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
541 const int num_java_iarg_registers = sizeof(java_iarg_reg) / sizeof(java_iarg_reg[0]);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
542 const int num_java_farg_registers = sizeof(java_farg_reg) / sizeof(java_farg_reg[0]);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
543
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
544 int SharedRuntime::java_calling_convention(const BasicType *sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
545 VMRegPair *regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
546 int total_args_passed,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
547 int is_outgoing) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
548 // C2c calling conventions for compiled-compiled calls.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
549 // Put 8 ints/longs into registers _AND_ 13 float/doubles into
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
550 // registers _AND_ put the rest on the stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
551
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
552 const int inc_stk_for_intfloat = 1; // 1 slots for ints and floats
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
553 const int inc_stk_for_longdouble = 2; // 2 slots for longs and doubles
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
554
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
555 int i;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
556 VMReg reg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
557 int stk = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
558 int ireg = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
559 int freg = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
560
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
561 // We put the first 8 arguments into registers and the rest on the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
562 // stack, float arguments are already in their argument registers
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
563 // due to c2c calling conventions (see calling_convention).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
564 for (int i = 0; i < total_args_passed; ++i) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
565 switch(sig_bt[i]) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
566 case T_BOOLEAN:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
567 case T_CHAR:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
568 case T_BYTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
569 case T_SHORT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
570 case T_INT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
571 if (ireg < num_java_iarg_registers) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
572 // Put int/ptr in register
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
573 reg = java_iarg_reg[ireg];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
574 ++ireg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
575 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
576 // Put int/ptr on stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
577 reg = VMRegImpl::stack2reg(stk);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
578 stk += inc_stk_for_intfloat;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
579 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
580 regs[i].set1(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
581 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
582 case T_LONG:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
583 assert(sig_bt[i+1] == T_VOID, "expecting half");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
584 if (ireg < num_java_iarg_registers) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
585 // Put long in register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
586 reg = java_iarg_reg[ireg];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
587 ++ireg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
588 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
589 // Put long on stack. They must be aligned to 2 slots.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
590 if (stk & 0x1) ++stk;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
591 reg = VMRegImpl::stack2reg(stk);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
592 stk += inc_stk_for_longdouble;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
593 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
594 regs[i].set2(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
595 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
596 case T_OBJECT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
597 case T_ARRAY:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
598 case T_ADDRESS:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
599 if (ireg < num_java_iarg_registers) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
600 // Put ptr in register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
601 reg = java_iarg_reg[ireg];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
602 ++ireg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
603 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
604 // Put ptr on stack. Objects must be aligned to 2 slots too,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
605 // because "64-bit pointers record oop-ishness on 2 aligned
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
606 // adjacent registers." (see OopFlow::build_oop_map).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
607 if (stk & 0x1) ++stk;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
608 reg = VMRegImpl::stack2reg(stk);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
609 stk += inc_stk_for_longdouble;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
610 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
611 regs[i].set2(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
612 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
613 case T_FLOAT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
614 if (freg < num_java_farg_registers) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
615 // Put float in register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
616 reg = java_farg_reg[freg];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
617 ++freg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
618 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
619 // Put float on stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
620 reg = VMRegImpl::stack2reg(stk);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
621 stk += inc_stk_for_intfloat;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
622 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
623 regs[i].set1(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
624 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
625 case T_DOUBLE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
626 assert(sig_bt[i+1] == T_VOID, "expecting half");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
627 if (freg < num_java_farg_registers) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
628 // Put double in register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
629 reg = java_farg_reg[freg];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
630 ++freg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
631 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
632 // Put double on stack. They must be aligned to 2 slots.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
633 if (stk & 0x1) ++stk;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
634 reg = VMRegImpl::stack2reg(stk);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
635 stk += inc_stk_for_longdouble;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
636 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
637 regs[i].set2(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
638 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
639 case T_VOID:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
640 // Do not count halves.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
641 regs[i].set_bad();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
642 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
643 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
644 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
645 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
646 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
647 return round_to(stk, 2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
648 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
649
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
650 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
651 // Calling convention for calling C code.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
652 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
653 VMRegPair *regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
654 VMRegPair *regs2,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
655 int total_args_passed) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
656 // Calling conventions for C runtime calls and calls to JNI native methods.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
657 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
658 // PPC64 convention: Hoist the first 8 int/ptr/long's in the first 8
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
659 // int regs, leaving int regs undefined if the arg is flt/dbl. Hoist
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
660 // the first 13 flt/dbl's in the first 13 fp regs but additionally
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
661 // copy flt/dbl to the stack if they are beyond the 8th argument.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
662
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
663 const VMReg iarg_reg[8] = {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
664 R3->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
665 R4->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
666 R5->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
667 R6->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
668 R7->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
669 R8->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
670 R9->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
671 R10->as_VMReg()
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
672 };
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
673
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
674 const VMReg farg_reg[13] = {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
675 F1->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
676 F2->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
677 F3->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
678 F4->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
679 F5->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
680 F6->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
681 F7->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
682 F8->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
683 F9->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
684 F10->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
685 F11->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
686 F12->as_VMReg(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
687 F13->as_VMReg()
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
688 };
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
689
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
690 // Check calling conventions consistency.
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
691 assert(sizeof(iarg_reg) / sizeof(iarg_reg[0]) == Argument::n_int_register_parameters_c &&
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
692 sizeof(farg_reg) / sizeof(farg_reg[0]) == Argument::n_float_register_parameters_c,
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
693 "consistency");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
694
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
695 // `Stk' counts stack slots. Due to alignment, 32 bit values occupy
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
696 // 2 such slots, like 64 bit values do.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
697 const int inc_stk_for_intfloat = 2; // 2 slots for ints and floats
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
698 const int inc_stk_for_longdouble = 2; // 2 slots for longs and doubles
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
699
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
700 int i;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
701 VMReg reg;
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
702 // Leave room for C-compatible ABI_REG_ARGS.
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
703 int stk = (frame::abi_reg_args_size - frame::jit_out_preserve_size) / VMRegImpl::stack_slot_size;
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
704 int arg = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
705 int freg = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
706
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
707 // Avoid passing C arguments in the wrong stack slots.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
708 #if defined(ABI_ELFv2)
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
709 assert((SharedRuntime::out_preserve_stack_slots() + stk) * VMRegImpl::stack_slot_size == 96,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
710 "passing C arguments in wrong stack slots");
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
711 #else
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
712 assert((SharedRuntime::out_preserve_stack_slots() + stk) * VMRegImpl::stack_slot_size == 112,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
713 "passing C arguments in wrong stack slots");
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
714 #endif
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
715 // We fill-out regs AND regs2 if an argument must be passed in a
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
716 // register AND in a stack slot. If regs2 is NULL in such a
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
717 // situation, we bail-out with a fatal error.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
718 for (int i = 0; i < total_args_passed; ++i, ++arg) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
719 // Initialize regs2 to BAD.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
720 if (regs2 != NULL) regs2[i].set_bad();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
721
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
722 switch(sig_bt[i]) {
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
723
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
724 //
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
725 // If arguments 0-7 are integers, they are passed in integer registers.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
726 // Argument i is placed in iarg_reg[i].
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
727 //
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
728 case T_BOOLEAN:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
729 case T_CHAR:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
730 case T_BYTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
731 case T_SHORT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
732 case T_INT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
733 // We must cast ints to longs and use full 64 bit stack slots
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
734 // here. We do the cast in GraphKit::gen_stub() and just guard
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
735 // here against loosing that change.
14418
cfd05ec74089 8024342: PPC64 (part 111): Support for C calling conventions that require 64-bit ints.
goetz
parents: 14408
diff changeset
736 assert(CCallingConventionRequiresIntsAsLongs,
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
737 "argument of type int should be promoted to type long");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
738 guarantee(i > 0 && sig_bt[i-1] == T_LONG,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
739 "argument of type (bt) should have been promoted to type (T_LONG,bt) for bt in "
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
740 "{T_BOOLEAN, T_CHAR, T_BYTE, T_SHORT, T_INT}");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
741 // Do not count halves.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
742 regs[i].set_bad();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
743 --arg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
744 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
745 case T_LONG:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
746 guarantee(sig_bt[i+1] == T_VOID ||
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
747 sig_bt[i+1] == T_BOOLEAN || sig_bt[i+1] == T_CHAR ||
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
748 sig_bt[i+1] == T_BYTE || sig_bt[i+1] == T_SHORT ||
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
749 sig_bt[i+1] == T_INT,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
750 "expecting type (T_LONG,half) or type (T_LONG,bt) with bt in {T_BOOLEAN, T_CHAR, T_BYTE, T_SHORT, T_INT}");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
751 case T_OBJECT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
752 case T_ARRAY:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
753 case T_ADDRESS:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
754 case T_METADATA:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
755 // Oops are already boxed if required (JNI).
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
756 if (arg < Argument::n_int_register_parameters_c) {
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
757 reg = iarg_reg[arg];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
758 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
759 reg = VMRegImpl::stack2reg(stk);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
760 stk += inc_stk_for_longdouble;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
761 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
762 regs[i].set2(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
763 break;
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
764
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
765 //
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
766 // Floats are treated differently from int regs: The first 13 float arguments
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
767 // are passed in registers (not the float args among the first 13 args).
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
768 // Thus argument i is NOT passed in farg_reg[i] if it is float. It is passed
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
769 // in farg_reg[j] if argument i is the j-th float argument of this call.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
770 //
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
771 case T_FLOAT:
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
772 if (freg < Argument::n_float_register_parameters_c) {
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
773 // Put float in register ...
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
774 reg = farg_reg[freg];
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
775 ++freg;
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
776
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
777 // Argument i for i > 8 is placed on the stack even if it's
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
778 // placed in a register (if it's a float arg). Aix disassembly
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
779 // shows that xlC places these float args on the stack AND in
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
780 // a register. This is not documented, but we follow this
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
781 // convention, too.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
782 if (arg >= Argument::n_regs_not_on_stack_c) {
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
783 // ... and on the stack.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
784 guarantee(regs2 != NULL, "must pass float in register and stack slot");
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
785 VMReg reg2 = VMRegImpl::stack2reg(stk LINUX_ONLY(+1));
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
786 regs2[i].set1(reg2);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
787 stk += inc_stk_for_intfloat;
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
788 }
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
789
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
790 } else {
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
791 // Put float on stack.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
792 reg = VMRegImpl::stack2reg(stk LINUX_ONLY(+1));
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
793 stk += inc_stk_for_intfloat;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
794 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
795 regs[i].set1(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
796 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
797 case T_DOUBLE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
798 assert(sig_bt[i+1] == T_VOID, "expecting half");
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
799 if (freg < Argument::n_float_register_parameters_c) {
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
800 // Put double in register ...
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
801 reg = farg_reg[freg];
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
802 ++freg;
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
803
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
804 // Argument i for i > 8 is placed on the stack even if it's
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
805 // placed in a register (if it's a double arg). Aix disassembly
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
806 // shows that xlC places these float args on the stack AND in
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
807 // a register. This is not documented, but we follow this
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
808 // convention, too.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
809 if (arg >= Argument::n_regs_not_on_stack_c) {
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
810 // ... and on the stack.
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
811 guarantee(regs2 != NULL, "must pass float in register and stack slot");
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
812 VMReg reg2 = VMRegImpl::stack2reg(stk);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
813 regs2[i].set2(reg2);
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
814 stk += inc_stk_for_longdouble;
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
815 }
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
816 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
817 // Put double on stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
818 reg = VMRegImpl::stack2reg(stk);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
819 stk += inc_stk_for_longdouble;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
820 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
821 regs[i].set2(reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
822 break;
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
823
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
824 case T_VOID:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
825 // Do not count halves.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
826 regs[i].set_bad();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
827 --arg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
828 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
829 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
830 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
831 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
832 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
833
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
834 return round_to(stk, 2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
835 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
836 #endif // COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
837
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
838 static address gen_c2i_adapter(MacroAssembler *masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
839 int total_args_passed,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
840 int comp_args_on_stack,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
841 const BasicType *sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
842 const VMRegPair *regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
843 Label& call_interpreter,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
844 const Register& ientry) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
845
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
846 address c2i_entrypoint;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
847
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
848 const Register sender_SP = R21_sender_SP; // == R21_tmp1
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
849 const Register code = R22_tmp2;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
850 //const Register ientry = R23_tmp3;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
851 const Register value_regs[] = { R24_tmp4, R25_tmp5, R26_tmp6 };
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
852 const int num_value_regs = sizeof(value_regs) / sizeof(Register);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
853 int value_regs_index = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
854
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
855 const Register return_pc = R27_tmp7;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
856 const Register tmp = R28_tmp8;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
857
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
858 assert_different_registers(sender_SP, code, ientry, return_pc, tmp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
859
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
860 // Adapter needs TOP_IJAVA_FRAME_ABI.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
861 const int adapter_size = frame::top_ijava_frame_abi_size +
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
862 round_to(total_args_passed * wordSize, frame::alignment_in_bytes);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
863
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
864 // regular (verified) c2i entry point
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
865 c2i_entrypoint = __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
866
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
867 // Does compiled code exists? If yes, patch the caller's callsite.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
868 __ ld(code, method_(code));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
869 __ cmpdi(CCR0, code, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
870 __ ld(ientry, method_(interpreter_entry)); // preloaded
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
871 __ beq(CCR0, call_interpreter);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
872
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
873
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
874 // Patch caller's callsite, method_(code) was not NULL which means that
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
875 // compiled code exists.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
876 __ mflr(return_pc);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
877 __ std(return_pc, _abi(lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
878 RegisterSaver::push_frame_and_save_argument_registers(masm, tmp, adapter_size, total_args_passed, regs);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
879
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
880 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::fixup_callers_callsite), R19_method, return_pc);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
881
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
882 RegisterSaver::restore_argument_registers_and_pop_frame(masm, adapter_size, total_args_passed, regs);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
883 __ ld(return_pc, _abi(lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
884 __ ld(ientry, method_(interpreter_entry)); // preloaded
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
885 __ mtlr(return_pc);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
886
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
887
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
888 // Call the interpreter.
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
889 __ BIND(call_interpreter);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
890 __ mtctr(ientry);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
891
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
892 // Get a copy of the current SP for loading caller's arguments.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
893 __ mr(sender_SP, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
894
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
895 // Add space for the adapter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
896 __ resize_frame(-adapter_size, R12_scratch2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
897
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
898 int st_off = adapter_size - wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
899
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
900 // Write the args into the outgoing interpreter space.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
901 for (int i = 0; i < total_args_passed; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
902 VMReg r_1 = regs[i].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
903 VMReg r_2 = regs[i].second();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
904 if (!r_1->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
905 assert(!r_2->is_valid(), "");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
906 continue;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
907 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
908 if (r_1->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
909 Register tmp_reg = value_regs[value_regs_index];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
910 value_regs_index = (value_regs_index + 1) % num_value_regs;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
911 // The calling convention produces OptoRegs that ignore the out
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
912 // preserve area (JIT's ABI). We must account for it here.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
913 int ld_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
914 if (!r_2->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
915 __ lwz(tmp_reg, ld_off, sender_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
916 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
917 __ ld(tmp_reg, ld_off, sender_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
918 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
919 // Pretend stack targets were loaded into tmp_reg.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
920 r_1 = tmp_reg->as_VMReg();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
921 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
922
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
923 if (r_1->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
924 Register r = r_1->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
925 if (!r_2->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
926 __ stw(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
927 st_off-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
928 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
929 // Longs are given 2 64-bit slots in the interpreter, but the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
930 // data is passed in only 1 slot.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
931 if (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
932 DEBUG_ONLY( __ li(tmp, 0); __ std(tmp, st_off, R1_SP); )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
933 st_off-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
934 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
935 __ std(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
936 st_off-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
937 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
938 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
939 assert(r_1->is_FloatRegister(), "");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
940 FloatRegister f = r_1->as_FloatRegister();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
941 if (!r_2->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
942 __ stfs(f, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
943 st_off-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
944 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
945 // In 64bit, doubles are given 2 64-bit slots in the interpreter, but the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
946 // data is passed in only 1 slot.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
947 // One of these should get known junk...
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
948 DEBUG_ONLY( __ li(tmp, 0); __ std(tmp, st_off, R1_SP); )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
949 st_off-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
950 __ stfd(f, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
951 st_off-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
952 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
953 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
954 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
955
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
956 // Jump to the interpreter just as if interpreter was doing it.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
957
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
958 #ifdef CC_INTERP
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
959 const Register tos = R17_tos;
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
960 #endif
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
961
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
962 // load TOS
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
963 __ addi(tos, R1_SP, st_off);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
964
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
965 // Frame_manager expects initial_caller_sp (= SP without resize by c2i) in R21_tmp1.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
966 assert(sender_SP == R21_sender_SP, "passing initial caller's SP in wrong register");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
967 __ bctr();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
968
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
969 return c2i_entrypoint;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
970 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
971
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
972 static void gen_i2c_adapter(MacroAssembler *masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
973 int total_args_passed,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
974 int comp_args_on_stack,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
975 const BasicType *sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
976 const VMRegPair *regs) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
977
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
978 // Load method's entry-point from methodOop.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
979 __ ld(R12_scratch2, in_bytes(Method::from_compiled_offset()), R19_method);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
980 __ mtctr(R12_scratch2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
981
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
982 // We will only enter here from an interpreted frame and never from after
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
983 // passing thru a c2i. Azul allowed this but we do not. If we lose the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
984 // race and use a c2i we will remain interpreted for the race loser(s).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
985 // This removes all sorts of headaches on the x86 side and also eliminates
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
986 // the possibility of having c2i -> i2c -> c2i -> ... endless transitions.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
987
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
988 // Note: r13 contains the senderSP on entry. We must preserve it since
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
989 // we may do a i2c -> c2i transition if we lose a race where compiled
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
990 // code goes non-entrant while we get args ready.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
991 // In addition we use r13 to locate all the interpreter args as
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
992 // we must align the stack to 16 bytes on an i2c entry else we
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
993 // lose alignment we expect in all compiled code and register
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
994 // save code can segv when fxsave instructions find improperly
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
995 // aligned stack pointer.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
996
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
997 #ifdef CC_INTERP
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
998 const Register ld_ptr = R17_tos;
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
999 #endif
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1000 const Register value_regs[] = { R22_tmp2, R23_tmp3, R24_tmp4, R25_tmp5, R26_tmp6 };
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1001 const int num_value_regs = sizeof(value_regs) / sizeof(Register);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1002 int value_regs_index = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1003
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1004 int ld_offset = total_args_passed*wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1005
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1006 // Cut-out for having no stack args. Since up to 2 int/oop args are passed
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1007 // in registers, we will occasionally have no stack args.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1008 int comp_words_on_stack = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1009 if (comp_args_on_stack) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1010 // Sig words on the stack are greater-than VMRegImpl::stack0. Those in
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1011 // registers are below. By subtracting stack0, we either get a negative
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1012 // number (all values in registers) or the maximum stack slot accessed.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1013
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1014 // Convert 4-byte c2 stack slots to words.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1015 comp_words_on_stack = round_to(comp_args_on_stack*VMRegImpl::stack_slot_size, wordSize)>>LogBytesPerWord;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1016 // Round up to miminum stack alignment, in wordSize.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1017 comp_words_on_stack = round_to(comp_words_on_stack, 2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1018 __ resize_frame(-comp_words_on_stack * wordSize, R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1019 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1020
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1021 // Now generate the shuffle code. Pick up all register args and move the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1022 // rest through register value=Z_R12.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1023 BLOCK_COMMENT("Shuffle arguments");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1024 for (int i = 0; i < total_args_passed; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1025 if (sig_bt[i] == T_VOID) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1026 assert(i > 0 && (sig_bt[i-1] == T_LONG || sig_bt[i-1] == T_DOUBLE), "missing half");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1027 continue;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1028 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1029
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1030 // Pick up 0, 1 or 2 words from ld_ptr.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1031 assert(!regs[i].second()->is_valid() || regs[i].first()->next() == regs[i].second(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1032 "scrambled load targets?");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1033 VMReg r_1 = regs[i].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1034 VMReg r_2 = regs[i].second();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1035 if (!r_1->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1036 assert(!r_2->is_valid(), "");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1037 continue;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1038 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1039 if (r_1->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1040 if (!r_2->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1041 __ lfs(r_1->as_FloatRegister(), ld_offset, ld_ptr);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1042 ld_offset-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1043 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1044 // Skip the unused interpreter slot.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1045 __ lfd(r_1->as_FloatRegister(), ld_offset-wordSize, ld_ptr);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1046 ld_offset-=2*wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1047 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1048 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1049 Register r;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1050 if (r_1->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1051 // Must do a memory to memory move thru "value".
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1052 r = value_regs[value_regs_index];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1053 value_regs_index = (value_regs_index + 1) % num_value_regs;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1054 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1055 r = r_1->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1056 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1057 if (!r_2->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1058 // Not sure we need to do this but it shouldn't hurt.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1059 if (sig_bt[i] == T_OBJECT || sig_bt[i] == T_ADDRESS || sig_bt[i] == T_ARRAY) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1060 __ ld(r, ld_offset, ld_ptr);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1061 ld_offset-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1062 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1063 __ lwz(r, ld_offset, ld_ptr);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1064 ld_offset-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1065 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1066 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1067 // In 64bit, longs are given 2 64-bit slots in the interpreter, but the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1068 // data is passed in only 1 slot.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1069 if (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1070 ld_offset-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1071 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1072 __ ld(r, ld_offset, ld_ptr);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1073 ld_offset-=wordSize;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1074 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1075
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1076 if (r_1->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1077 // Now store value where the compiler expects it
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1078 int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots())*VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1079
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1080 if (sig_bt[i] == T_INT || sig_bt[i] == T_FLOAT ||sig_bt[i] == T_BOOLEAN ||
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1081 sig_bt[i] == T_SHORT || sig_bt[i] == T_CHAR || sig_bt[i] == T_BYTE) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1082 __ stw(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1083 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1084 __ std(r, st_off, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1085 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1086 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1087 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1088 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1089
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1090 BLOCK_COMMENT("Store method oop");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1091 // Store method oop into thread->callee_target.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1092 // We might end up in handle_wrong_method if the callee is
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1093 // deoptimized as we race thru here. If that happens we don't want
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1094 // to take a safepoint because the caller frame will look
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1095 // interpreted and arguments are now "compiled" so it is much better
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1096 // to make this transition invisible to the stack walking
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1097 // code. Unfortunately if we try and find the callee by normal means
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1098 // a safepoint is possible. So we stash the desired callee in the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1099 // thread and the vm will find there should this case occur.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1100 __ std(R19_method, thread_(callee_target));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1101
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1102 // Jump to the compiled code just as if compiled code was doing it.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1103 __ bctr();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1104 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1105
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1106 AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(MacroAssembler *masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1107 int total_args_passed,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1108 int comp_args_on_stack,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1109 const BasicType *sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1110 const VMRegPair *regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1111 AdapterFingerPrint* fingerprint) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1112 address i2c_entry;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1113 address c2i_unverified_entry;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1114 address c2i_entry;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1115
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1116
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1117 // entry: i2c
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1118
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1119 __ align(CodeEntryAlignment);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1120 i2c_entry = __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1121 gen_i2c_adapter(masm, total_args_passed, comp_args_on_stack, sig_bt, regs);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1122
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1123
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1124 // entry: c2i unverified
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1125
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1126 __ align(CodeEntryAlignment);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1127 BLOCK_COMMENT("c2i unverified entry");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1128 c2i_unverified_entry = __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1129
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1130 // inline_cache contains a compiledICHolder
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1131 const Register ic = R19_method;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1132 const Register ic_klass = R11_scratch1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1133 const Register receiver_klass = R12_scratch2;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1134 const Register code = R21_tmp1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1135 const Register ientry = R23_tmp3;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1136
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1137 assert_different_registers(ic, ic_klass, receiver_klass, R3_ARG1, code, ientry);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1138 assert(R11_scratch1 == R11, "need prologue scratch register");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1139
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1140 Label call_interpreter;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1141
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1142 assert(!MacroAssembler::needs_explicit_null_check(oopDesc::klass_offset_in_bytes()),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1143 "klass offset should reach into any page");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1144 // Check for NULL argument if we don't have implicit null checks.
14436
b0133e4187d3 8028471: PPC64 (part 215): opto: Extend ImplicitNullCheck optimization.
goetz
parents: 14418
diff changeset
1145 if (!ImplicitNullChecks || !os::zero_page_read_protected()) {
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1146 if (TrapBasedNullChecks) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1147 __ trap_null_check(R3_ARG1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1148 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1149 Label valid;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1150 __ cmpdi(CCR0, R3_ARG1, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1151 __ bne_predict_taken(CCR0, valid);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1152 // We have a null argument, branch to ic_miss_stub.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1153 __ b64_patchable((address)SharedRuntime::get_ic_miss_stub(),
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
1154 relocInfo::runtime_call_type);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1155 __ BIND(valid);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1156 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1157 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1158 // Assume argument is not NULL, load klass from receiver.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1159 __ load_klass(receiver_klass, R3_ARG1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1160
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1161 __ ld(ic_klass, CompiledICHolder::holder_klass_offset(), ic);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1162
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1163 if (TrapBasedICMissChecks) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1164 __ trap_ic_miss_check(receiver_klass, ic_klass);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1165 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1166 Label valid;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1167 __ cmpd(CCR0, receiver_klass, ic_klass);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1168 __ beq_predict_taken(CCR0, valid);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1169 // We have an unexpected klass, branch to ic_miss_stub.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1170 __ b64_patchable((address)SharedRuntime::get_ic_miss_stub(),
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
1171 relocInfo::runtime_call_type);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1172 __ BIND(valid);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1173 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1174
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1175 // Argument is valid and klass is as expected, continue.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1176
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1177 // Extract method from inline cache, verified entry point needs it.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1178 __ ld(R19_method, CompiledICHolder::holder_method_offset(), ic);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1179 assert(R19_method == ic, "the inline cache register is dead here");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1180
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1181 __ ld(code, method_(code));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1182 __ cmpdi(CCR0, code, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1183 __ ld(ientry, method_(interpreter_entry)); // preloaded
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1184 __ beq_predict_taken(CCR0, call_interpreter);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1185
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1186 // Branch to ic_miss_stub.
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
1187 __ b64_patchable((address)SharedRuntime::get_ic_miss_stub(), relocInfo::runtime_call_type);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1188
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1189 // entry: c2i
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1190
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1191 c2i_entry = gen_c2i_adapter(masm, total_args_passed, comp_args_on_stack, sig_bt, regs, call_interpreter, ientry);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1192
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1193 return AdapterHandlerLibrary::new_entry(fingerprint, i2c_entry, c2i_entry, c2i_unverified_entry);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1194 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1195
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1196 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1197 // An oop arg. Must pass a handle not the oop itself.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1198 static void object_move(MacroAssembler* masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1199 int frame_size_in_slots,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1200 OopMap* oop_map, int oop_handle_offset,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1201 bool is_receiver, int* receiver_offset,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1202 VMRegPair src, VMRegPair dst,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1203 Register r_caller_sp, Register r_temp_1, Register r_temp_2) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1204 assert(!is_receiver || (is_receiver && (*receiver_offset == -1)),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1205 "receiver has already been moved");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1206
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1207 // We must pass a handle. First figure out the location we use as a handle.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1208
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1209 if (src.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1210 // stack to stack or reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1211
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1212 const Register r_handle = dst.first()->is_stack() ? r_temp_1 : dst.first()->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1213 Label skip;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1214 const int oop_slot_in_callers_frame = reg2slot(src.first());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1215
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1216 guarantee(!is_receiver, "expecting receiver in register");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1217 oop_map->set_oop(VMRegImpl::stack2reg(oop_slot_in_callers_frame + frame_size_in_slots));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1218
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1219 __ addi(r_handle, r_caller_sp, reg2offset(src.first()));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1220 __ ld( r_temp_2, reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1221 __ cmpdi(CCR0, r_temp_2, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1222 __ bne(CCR0, skip);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1223 // Use a NULL handle if oop is NULL.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1224 __ li(r_handle, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1225 __ bind(skip);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1226
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1227 if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1228 // stack to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1229 __ std(r_handle, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1230 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1231 // stack to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1232 // Nothing to do, r_handle is already the dst register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1233 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1234 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1235 // reg to stack or reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1236 const Register r_oop = src.first()->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1237 const Register r_handle = dst.first()->is_stack() ? r_temp_1 : dst.first()->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1238 const int oop_slot = (r_oop->encoding()-R3_ARG1->encoding()) * VMRegImpl::slots_per_word
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1239 + oop_handle_offset; // in slots
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1240 const int oop_offset = oop_slot * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1241 Label skip;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1242
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1243 if (is_receiver) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1244 *receiver_offset = oop_offset;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1245 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1246 oop_map->set_oop(VMRegImpl::stack2reg(oop_slot));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1247
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1248 __ std( r_oop, oop_offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1249 __ addi(r_handle, R1_SP, oop_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1250
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1251 __ cmpdi(CCR0, r_oop, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1252 __ bne(CCR0, skip);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1253 // Use a NULL handle if oop is NULL.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1254 __ li(r_handle, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1255 __ bind(skip);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1256
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1257 if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1258 // reg to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1259 __ std(r_handle, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1260 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1261 // reg to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1262 // Nothing to do, r_handle is already the dst register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1263 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1264 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1265 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1266
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1267 static void int_move(MacroAssembler*masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1268 VMRegPair src, VMRegPair dst,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1269 Register r_caller_sp, Register r_temp) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1270 assert(src.first()->is_valid() && src.second() == src.first()->next(), "incoming must be long-int");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1271 assert(dst.first()->is_valid() && dst.second() == dst.first()->next(), "outgoing must be long");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1272
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1273 if (src.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1274 if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1275 // stack to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1276 __ lwa(r_temp, reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1277 __ std(r_temp, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1278 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1279 // stack to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1280 __ lwa(dst.first()->as_Register(), reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1281 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1282 } else if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1283 // reg to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1284 __ extsw(r_temp, src.first()->as_Register());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1285 __ std(r_temp, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1286 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1287 // reg to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1288 __ extsw(dst.first()->as_Register(), src.first()->as_Register());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1289 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1290 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1291
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1292 static void long_move(MacroAssembler*masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1293 VMRegPair src, VMRegPair dst,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1294 Register r_caller_sp, Register r_temp) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1295 assert(src.first()->is_valid() && src.second() == src.first()->next(), "incoming must be long");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1296 assert(dst.first()->is_valid() && dst.second() == dst.first()->next(), "outgoing must be long");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1297
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1298 if (src.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1299 if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1300 // stack to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1301 __ ld( r_temp, reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1302 __ std(r_temp, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1303 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1304 // stack to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1305 __ ld(dst.first()->as_Register(), reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1306 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1307 } else if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1308 // reg to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1309 __ std(src.first()->as_Register(), reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1310 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1311 // reg to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1312 if (dst.first()->as_Register() != src.first()->as_Register())
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1313 __ mr(dst.first()->as_Register(), src.first()->as_Register());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1314 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1315 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1316
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1317 static void float_move(MacroAssembler*masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1318 VMRegPair src, VMRegPair dst,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1319 Register r_caller_sp, Register r_temp) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1320 assert(src.first()->is_valid() && !src.second()->is_valid(), "incoming must be float");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1321 assert(dst.first()->is_valid() && !dst.second()->is_valid(), "outgoing must be float");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1322
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1323 if (src.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1324 if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1325 // stack to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1326 __ lwz(r_temp, reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1327 __ stw(r_temp, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1328 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1329 // stack to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1330 __ lfs(dst.first()->as_FloatRegister(), reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1331 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1332 } else if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1333 // reg to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1334 __ stfs(src.first()->as_FloatRegister(), reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1335 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1336 // reg to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1337 if (dst.first()->as_FloatRegister() != src.first()->as_FloatRegister())
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1338 __ fmr(dst.first()->as_FloatRegister(), src.first()->as_FloatRegister());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1339 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1340 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1341
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1342 static void double_move(MacroAssembler*masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1343 VMRegPair src, VMRegPair dst,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1344 Register r_caller_sp, Register r_temp) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1345 assert(src.first()->is_valid() && src.second() == src.first()->next(), "incoming must be double");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1346 assert(dst.first()->is_valid() && dst.second() == dst.first()->next(), "outgoing must be double");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1347
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1348 if (src.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1349 if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1350 // stack to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1351 __ ld( r_temp, reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1352 __ std(r_temp, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1353 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1354 // stack to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1355 __ lfd(dst.first()->as_FloatRegister(), reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1356 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1357 } else if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1358 // reg to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1359 __ stfd(src.first()->as_FloatRegister(), reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1360 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1361 // reg to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1362 if (dst.first()->as_FloatRegister() != src.first()->as_FloatRegister())
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1363 __ fmr(dst.first()->as_FloatRegister(), src.first()->as_FloatRegister());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1364 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1365 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1366
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1367 void SharedRuntime::save_native_result(MacroAssembler *masm, BasicType ret_type, int frame_slots) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1368 switch (ret_type) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1369 case T_BOOLEAN:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1370 case T_CHAR:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1371 case T_BYTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1372 case T_SHORT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1373 case T_INT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1374 __ stw (R3_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1375 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1376 case T_ARRAY:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1377 case T_OBJECT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1378 case T_LONG:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1379 __ std (R3_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1380 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1381 case T_FLOAT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1382 __ stfs(F1_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1383 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1384 case T_DOUBLE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1385 __ stfd(F1_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1386 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1387 case T_VOID:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1388 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1389 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1390 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1391 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1392 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1393 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1394
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1395 void SharedRuntime::restore_native_result(MacroAssembler *masm, BasicType ret_type, int frame_slots) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1396 switch (ret_type) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1397 case T_BOOLEAN:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1398 case T_CHAR:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1399 case T_BYTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1400 case T_SHORT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1401 case T_INT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1402 __ lwz(R3_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1403 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1404 case T_ARRAY:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1405 case T_OBJECT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1406 case T_LONG:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1407 __ ld (R3_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1408 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1409 case T_FLOAT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1410 __ lfs(F1_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1411 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1412 case T_DOUBLE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1413 __ lfd(F1_RET, frame_slots*VMRegImpl::stack_slot_size, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1414 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1415 case T_VOID:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1416 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1417 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1418 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1419 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1420 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1421 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1422
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1423 static void save_or_restore_arguments(MacroAssembler* masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1424 const int stack_slots,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1425 const int total_in_args,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1426 const int arg_save_area,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1427 OopMap* map,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1428 VMRegPair* in_regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1429 BasicType* in_sig_bt) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1430 // If map is non-NULL then the code should store the values,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1431 // otherwise it should load them.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1432 int slot = arg_save_area;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1433 // Save down double word first.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1434 for (int i = 0; i < total_in_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1435 if (in_regs[i].first()->is_FloatRegister() && in_sig_bt[i] == T_DOUBLE) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1436 int offset = slot * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1437 slot += VMRegImpl::slots_per_word;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1438 assert(slot <= stack_slots, "overflow (after DOUBLE stack slot)");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1439 if (map != NULL) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1440 __ stfd(in_regs[i].first()->as_FloatRegister(), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1441 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1442 __ lfd(in_regs[i].first()->as_FloatRegister(), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1443 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1444 } else if (in_regs[i].first()->is_Register() &&
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1445 (in_sig_bt[i] == T_LONG || in_sig_bt[i] == T_ARRAY)) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1446 int offset = slot * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1447 if (map != NULL) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1448 __ std(in_regs[i].first()->as_Register(), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1449 if (in_sig_bt[i] == T_ARRAY) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1450 map->set_oop(VMRegImpl::stack2reg(slot));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1451 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1452 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1453 __ ld(in_regs[i].first()->as_Register(), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1454 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1455 slot += VMRegImpl::slots_per_word;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1456 assert(slot <= stack_slots, "overflow (after LONG/ARRAY stack slot)");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1457 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1458 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1459 // Save or restore single word registers.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1460 for (int i = 0; i < total_in_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1461 // PPC64: pass ints as longs: must only deal with floats here.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1462 if (in_regs[i].first()->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1463 if (in_sig_bt[i] == T_FLOAT) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1464 int offset = slot * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1465 slot++;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1466 assert(slot <= stack_slots, "overflow (after FLOAT stack slot)");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1467 if (map != NULL) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1468 __ stfs(in_regs[i].first()->as_FloatRegister(), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1469 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1470 __ lfs(in_regs[i].first()->as_FloatRegister(), offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1471 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1472 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1473 } else if (in_regs[i].first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1474 if (in_sig_bt[i] == T_ARRAY && map != NULL) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1475 int offset_in_older_frame = in_regs[i].first()->reg2stack() + SharedRuntime::out_preserve_stack_slots();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1476 map->set_oop(VMRegImpl::stack2reg(offset_in_older_frame + stack_slots));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1477 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1478 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1479 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1480 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1481
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1482 // Check GC_locker::needs_gc and enter the runtime if it's true. This
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1483 // keeps a new JNI critical region from starting until a GC has been
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1484 // forced. Save down any oops in registers and describe them in an
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1485 // OopMap.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1486 static void check_needs_gc_for_critical_native(MacroAssembler* masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1487 const int stack_slots,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1488 const int total_in_args,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1489 const int arg_save_area,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1490 OopMapSet* oop_maps,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1491 VMRegPair* in_regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1492 BasicType* in_sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1493 Register tmp_reg ) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1494 __ block_comment("check GC_locker::needs_gc");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1495 Label cont;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1496 __ lbz(tmp_reg, (RegisterOrConstant)(intptr_t)GC_locker::needs_gc_address());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1497 __ cmplwi(CCR0, tmp_reg, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1498 __ beq(CCR0, cont);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1499
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1500 // Save down any values that are live in registers and call into the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1501 // runtime to halt for a GC.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1502 OopMap* map = new OopMap(stack_slots * 2, 0 /* arg_slots*/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1503 save_or_restore_arguments(masm, stack_slots, total_in_args,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1504 arg_save_area, map, in_regs, in_sig_bt);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1505
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1506 __ mr(R3_ARG1, R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1507 __ set_last_Java_frame(R1_SP, noreg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1508
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1509 __ block_comment("block_for_jni_critical");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1510 address entry_point = CAST_FROM_FN_PTR(address, SharedRuntime::block_for_jni_critical);
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
1511 #if defined(ABI_ELFv2)
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
1512 __ call_c(entry_point, relocInfo::runtime_call_type);
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
1513 #else
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1514 __ call_c(CAST_FROM_FN_PTR(FunctionDescriptor*, entry_point), relocInfo::runtime_call_type);
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
1515 #endif
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1516 address start = __ pc() - __ offset(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1517 calls_return_pc = __ last_calls_return_pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1518 oop_maps->add_gc_map(calls_return_pc - start, map);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1519
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1520 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1521
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1522 // Reload all the register arguments.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1523 save_or_restore_arguments(masm, stack_slots, total_in_args,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1524 arg_save_area, NULL, in_regs, in_sig_bt);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1525
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1526 __ BIND(cont);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1527
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1528 #ifdef ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1529 if (StressCriticalJNINatives) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1530 // Stress register saving.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1531 OopMap* map = new OopMap(stack_slots * 2, 0 /* arg_slots*/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1532 save_or_restore_arguments(masm, stack_slots, total_in_args,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1533 arg_save_area, map, in_regs, in_sig_bt);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1534 // Destroy argument registers.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1535 for (int i = 0; i < total_in_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1536 if (in_regs[i].first()->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1537 const Register reg = in_regs[i].first()->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1538 __ neg(reg, reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1539 } else if (in_regs[i].first()->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1540 __ fneg(in_regs[i].first()->as_FloatRegister(), in_regs[i].first()->as_FloatRegister());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1541 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1542 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1543
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1544 save_or_restore_arguments(masm, stack_slots, total_in_args,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1545 arg_save_area, NULL, in_regs, in_sig_bt);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1546 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1547 #endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1548 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1549
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1550 static void move_ptr(MacroAssembler* masm, VMRegPair src, VMRegPair dst, Register r_caller_sp, Register r_temp) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1551 if (src.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1552 if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1553 // stack to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1554 __ ld(r_temp, reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1555 __ std(r_temp, reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1556 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1557 // stack to reg
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1558 __ ld(dst.first()->as_Register(), reg2offset(src.first()), r_caller_sp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1559 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1560 } else if (dst.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1561 // reg to stack
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1562 __ std(src.first()->as_Register(), reg2offset(dst.first()), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1563 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1564 if (dst.first() != src.first()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1565 __ mr(dst.first()->as_Register(), src.first()->as_Register());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1566 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1567 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1568 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1569
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1570 // Unpack an array argument into a pointer to the body and the length
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1571 // if the array is non-null, otherwise pass 0 for both.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1572 static void unpack_array_argument(MacroAssembler* masm, VMRegPair reg, BasicType in_elem_type,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1573 VMRegPair body_arg, VMRegPair length_arg, Register r_caller_sp,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1574 Register tmp_reg, Register tmp2_reg) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1575 assert(!body_arg.first()->is_Register() || body_arg.first()->as_Register() != tmp_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1576 "possible collision");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1577 assert(!length_arg.first()->is_Register() || length_arg.first()->as_Register() != tmp_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1578 "possible collision");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1579
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1580 // Pass the length, ptr pair.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1581 Label set_out_args;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1582 VMRegPair tmp, tmp2;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1583 tmp.set_ptr(tmp_reg->as_VMReg());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1584 tmp2.set_ptr(tmp2_reg->as_VMReg());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1585 if (reg.first()->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1586 // Load the arg up from the stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1587 move_ptr(masm, reg, tmp, r_caller_sp, /*unused*/ R0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1588 reg = tmp;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1589 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1590 __ li(tmp2_reg, 0); // Pass zeros if Array=null.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1591 if (tmp_reg != reg.first()->as_Register()) __ li(tmp_reg, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1592 __ cmpdi(CCR0, reg.first()->as_Register(), 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1593 __ beq(CCR0, set_out_args);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1594 __ lwa(tmp2_reg, arrayOopDesc::length_offset_in_bytes(), reg.first()->as_Register());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1595 __ addi(tmp_reg, reg.first()->as_Register(), arrayOopDesc::base_offset_in_bytes(in_elem_type));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1596 __ bind(set_out_args);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1597 move_ptr(masm, tmp, body_arg, r_caller_sp, /*unused*/ R0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1598 move_ptr(masm, tmp2, length_arg, r_caller_sp, /*unused*/ R0); // Same as move32_64 on PPC64.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1599 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1600
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1601 static void verify_oop_args(MacroAssembler* masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1602 methodHandle method,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1603 const BasicType* sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1604 const VMRegPair* regs) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1605 Register temp_reg = R19_method; // not part of any compiled calling seq
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1606 if (VerifyOops) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1607 for (int i = 0; i < method->size_of_parameters(); i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1608 if (sig_bt[i] == T_OBJECT ||
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1609 sig_bt[i] == T_ARRAY) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1610 VMReg r = regs[i].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1611 assert(r->is_valid(), "bad oop arg");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1612 if (r->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1613 __ ld(temp_reg, reg2offset(r), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1614 __ verify_oop(temp_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1615 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1616 __ verify_oop(r->as_Register());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1617 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1618 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1619 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1620 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1621 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1622
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1623 static void gen_special_dispatch(MacroAssembler* masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1624 methodHandle method,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1625 const BasicType* sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1626 const VMRegPair* regs) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1627 verify_oop_args(masm, method, sig_bt, regs);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1628 vmIntrinsics::ID iid = method->intrinsic_id();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1629
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1630 // Now write the args into the outgoing interpreter space
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1631 bool has_receiver = false;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1632 Register receiver_reg = noreg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1633 int member_arg_pos = -1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1634 Register member_reg = noreg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1635 int ref_kind = MethodHandles::signature_polymorphic_intrinsic_ref_kind(iid);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1636 if (ref_kind != 0) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1637 member_arg_pos = method->size_of_parameters() - 1; // trailing MemberName argument
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1638 member_reg = R19_method; // known to be free at this point
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1639 has_receiver = MethodHandles::ref_kind_has_receiver(ref_kind);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1640 } else if (iid == vmIntrinsics::_invokeBasic) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1641 has_receiver = true;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1642 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1643 fatal(err_msg_res("unexpected intrinsic id %d", iid));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1644 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1645
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1646 if (member_reg != noreg) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1647 // Load the member_arg into register, if necessary.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1648 SharedRuntime::check_member_name_argument_is_last_argument(method, sig_bt, regs);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1649 VMReg r = regs[member_arg_pos].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1650 if (r->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1651 __ ld(member_reg, reg2offset(r), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1652 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1653 // no data motion is needed
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1654 member_reg = r->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1655 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1656 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1657
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1658 if (has_receiver) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1659 // Make sure the receiver is loaded into a register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1660 assert(method->size_of_parameters() > 0, "oob");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1661 assert(sig_bt[0] == T_OBJECT, "receiver argument must be an object");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1662 VMReg r = regs[0].first();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1663 assert(r->is_valid(), "bad receiver arg");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1664 if (r->is_stack()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1665 // Porting note: This assumes that compiled calling conventions always
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1666 // pass the receiver oop in a register. If this is not true on some
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1667 // platform, pick a temp and load the receiver from stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1668 fatal("receiver always in a register");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1669 receiver_reg = R11_scratch1; // TODO (hs24): is R11_scratch1 really free at this point?
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1670 __ ld(receiver_reg, reg2offset(r), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1671 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1672 // no data motion is needed
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1673 receiver_reg = r->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1674 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1675 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1676
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1677 // Figure out which address we are really jumping to:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1678 MethodHandles::generate_method_handle_dispatch(masm, iid,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1679 receiver_reg, member_reg, /*for_compiler_entry:*/ true);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1680 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1681
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1682 #endif // COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1683
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1684 // ---------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1685 // Generate a native wrapper for a given method. The method takes arguments
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1686 // in the Java compiled code convention, marshals them to the native
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1687 // convention (handlizes oops, etc), transitions to native, makes the call,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1688 // returns to java state (possibly blocking), unhandlizes any result and
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1689 // returns.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1690 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1691 // Critical native functions are a shorthand for the use of
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1692 // GetPrimtiveArrayCritical and disallow the use of any other JNI
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1693 // functions. The wrapper is expected to unpack the arguments before
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1694 // passing them to the callee and perform checks before and after the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1695 // native call to ensure that they GC_locker
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1696 // lock_critical/unlock_critical semantics are followed. Some other
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1697 // parts of JNI setup are skipped like the tear down of the JNI handle
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1698 // block and the check for pending exceptions it's impossible for them
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1699 // to be thrown.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1700 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1701 // They are roughly structured like this:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1702 // if (GC_locker::needs_gc())
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1703 // SharedRuntime::block_for_jni_critical();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1704 // tranistion to thread_in_native
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1705 // unpack arrray arguments and call native entry point
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1706 // check for safepoint in progress
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1707 // check if any thread suspend flags are set
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1708 // call into JVM and possible unlock the JNI critical
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1709 // if a GC was suppressed while in the critical native.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1710 // transition back to thread_in_Java
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1711 // return to caller
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1712 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1713 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1714 methodHandle method,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1715 int compile_id,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1716 BasicType *in_sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1717 VMRegPair *in_regs,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1718 BasicType ret_type) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1719 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1720 if (method->is_method_handle_intrinsic()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1721 vmIntrinsics::ID iid = method->intrinsic_id();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1722 intptr_t start = (intptr_t)__ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1723 int vep_offset = ((intptr_t)__ pc()) - start;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1724 gen_special_dispatch(masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1725 method,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1726 in_sig_bt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1727 in_regs);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1728 int frame_complete = ((intptr_t)__ pc()) - start; // not complete, period
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1729 __ flush();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1730 int stack_slots = SharedRuntime::out_preserve_stack_slots(); // no out slots at all, actually
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1731 return nmethod::new_native_nmethod(method,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1732 compile_id,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1733 masm->code(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1734 vep_offset,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1735 frame_complete,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1736 stack_slots / VMRegImpl::slots_per_word,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1737 in_ByteSize(-1),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1738 in_ByteSize(-1),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1739 (OopMapSet*)NULL);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1740 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1741
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1742 bool is_critical_native = true;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1743 address native_func = method->critical_native_function();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1744 if (native_func == NULL) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1745 native_func = method->native_function();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1746 is_critical_native = false;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1747 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1748 assert(native_func != NULL, "must have function");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1749
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1750 // First, create signature for outgoing C call
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1751 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1752
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1753 int total_in_args = method->size_of_parameters();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1754 // We have received a description of where all the java args are located
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1755 // on entry to the wrapper. We need to convert these args to where
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1756 // the jni function will expect them. To figure out where they go
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1757 // we convert the java signature to a C signature by inserting
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1758 // the hidden arguments as arg[0] and possibly arg[1] (static method)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1759 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1760 // Additionally, on ppc64 we must convert integers to longs in the C
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1761 // signature. We do this in advance in order to have no trouble with
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1762 // indexes into the bt-arrays.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1763 // So convert the signature and registers now, and adjust the total number
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1764 // of in-arguments accordingly.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1765 int i2l_argcnt = convert_ints_to_longints_argcnt(total_in_args, in_sig_bt); // PPC64: pass ints as longs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1766
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1767 // Calculate the total number of C arguments and create arrays for the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1768 // signature and the outgoing registers.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1769 // On ppc64, we have two arrays for the outgoing registers, because
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1770 // some floating-point arguments must be passed in registers _and_
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1771 // in stack locations.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1772 bool method_is_static = method->is_static();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1773 int total_c_args = i2l_argcnt;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1774
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1775 if (!is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1776 int n_hidden_args = method_is_static ? 2 : 1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1777 total_c_args += n_hidden_args;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1778 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1779 // No JNIEnv*, no this*, but unpacked arrays (base+length).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1780 for (int i = 0; i < total_in_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1781 if (in_sig_bt[i] == T_ARRAY) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1782 total_c_args += 2; // PPC64: T_LONG, T_INT, T_ADDRESS (see convert_ints_to_longints and c_calling_convention)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1783 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1784 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1785 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1786
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1787 BasicType *out_sig_bt = NEW_RESOURCE_ARRAY(BasicType, total_c_args);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1788 VMRegPair *out_regs = NEW_RESOURCE_ARRAY(VMRegPair, total_c_args);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1789 VMRegPair *out_regs2 = NEW_RESOURCE_ARRAY(VMRegPair, total_c_args);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1790 BasicType* in_elem_bt = NULL;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1791
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1792 // Create the signature for the C call:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1793 // 1) add the JNIEnv*
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1794 // 2) add the class if the method is static
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1795 // 3) copy the rest of the incoming signature (shifted by the number of
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1796 // hidden arguments).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1797
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1798 int argc = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1799 if (!is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1800 convert_ints_to_longints(i2l_argcnt, total_in_args, in_sig_bt, in_regs); // PPC64: pass ints as longs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1801
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1802 out_sig_bt[argc++] = T_ADDRESS;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1803 if (method->is_static()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1804 out_sig_bt[argc++] = T_OBJECT;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1805 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1806
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1807 for (int i = 0; i < total_in_args ; i++ ) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1808 out_sig_bt[argc++] = in_sig_bt[i];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1809 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1810 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1811 Thread* THREAD = Thread::current();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1812 in_elem_bt = NEW_RESOURCE_ARRAY(BasicType, i2l_argcnt);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1813 SignatureStream ss(method->signature());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1814 int o = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1815 for (int i = 0; i < total_in_args ; i++, o++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1816 if (in_sig_bt[i] == T_ARRAY) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1817 // Arrays are passed as int, elem* pair
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1818 Symbol* atype = ss.as_symbol(CHECK_NULL);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1819 const char* at = atype->as_C_string();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1820 if (strlen(at) == 2) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1821 assert(at[0] == '[', "must be");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1822 switch (at[1]) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1823 case 'B': in_elem_bt[o] = T_BYTE; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1824 case 'C': in_elem_bt[o] = T_CHAR; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1825 case 'D': in_elem_bt[o] = T_DOUBLE; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1826 case 'F': in_elem_bt[o] = T_FLOAT; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1827 case 'I': in_elem_bt[o] = T_INT; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1828 case 'J': in_elem_bt[o] = T_LONG; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1829 case 'S': in_elem_bt[o] = T_SHORT; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1830 case 'Z': in_elem_bt[o] = T_BOOLEAN; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1831 default: ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1832 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1833 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1834 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1835 in_elem_bt[o] = T_VOID;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1836 switch(in_sig_bt[i]) { // PPC64: pass ints as longs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1837 case T_BOOLEAN:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1838 case T_CHAR:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1839 case T_BYTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1840 case T_SHORT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1841 case T_INT: in_elem_bt[++o] = T_VOID; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1842 default: break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1843 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1844 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1845 if (in_sig_bt[i] != T_VOID) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1846 assert(in_sig_bt[i] == ss.type(), "must match");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1847 ss.next();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1848 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1849 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1850 assert(i2l_argcnt==o, "must match");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1851
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1852 convert_ints_to_longints(i2l_argcnt, total_in_args, in_sig_bt, in_regs); // PPC64: pass ints as longs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1853
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1854 for (int i = 0; i < total_in_args ; i++ ) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1855 if (in_sig_bt[i] == T_ARRAY) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1856 // Arrays are passed as int, elem* pair.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1857 out_sig_bt[argc++] = T_LONG; // PPC64: pass ints as longs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1858 out_sig_bt[argc++] = T_INT;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1859 out_sig_bt[argc++] = T_ADDRESS;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1860 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1861 out_sig_bt[argc++] = in_sig_bt[i];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1862 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1863 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1864 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1865
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1866
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1867 // Compute the wrapper's frame size.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1868 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1869
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1870 // Now figure out where the args must be stored and how much stack space
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1871 // they require.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1872 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1873 // Compute framesize for the wrapper. We need to handlize all oops in
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1874 // incoming registers.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1875 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1876 // Calculate the total number of stack slots we will need:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1877 // 1) abi requirements
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1878 // 2) outgoing arguments
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1879 // 3) space for inbound oop handle area
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1880 // 4) space for handlizing a klass if static method
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1881 // 5) space for a lock if synchronized method
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1882 // 6) workspace for saving return values, int <-> float reg moves, etc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1883 // 7) alignment
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1884 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1885 // Layout of the native wrapper frame:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1886 // (stack grows upwards, memory grows downwards)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1887 //
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
1888 // NW [ABI_REG_ARGS] <-- 1) R1_SP
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1889 // [outgoing arguments] <-- 2) R1_SP + out_arg_slot_offset
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1890 // [oopHandle area] <-- 3) R1_SP + oop_handle_offset (save area for critical natives)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1891 // klass <-- 4) R1_SP + klass_offset
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1892 // lock <-- 5) R1_SP + lock_offset
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1893 // [workspace] <-- 6) R1_SP + workspace_offset
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1894 // [alignment] (optional) <-- 7)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1895 // caller [JIT_TOP_ABI_48] <-- r_callers_sp
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1896 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1897 // - *_slot_offset Indicates offset from SP in number of stack slots.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1898 // - *_offset Indicates offset from SP in bytes.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1899
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1900 int stack_slots = c_calling_convention(out_sig_bt, out_regs, out_regs2, total_c_args) // 1+2)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1901 + SharedRuntime::out_preserve_stack_slots(); // See c_calling_convention.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1902
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1903 // Now the space for the inbound oop handle area.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1904 int total_save_slots = num_java_iarg_registers * VMRegImpl::slots_per_word;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1905 if (is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1906 // Critical natives may have to call out so they need a save area
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1907 // for register arguments.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1908 int double_slots = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1909 int single_slots = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1910 for (int i = 0; i < total_in_args; i++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1911 if (in_regs[i].first()->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1912 const Register reg = in_regs[i].first()->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1913 switch (in_sig_bt[i]) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1914 case T_BOOLEAN:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1915 case T_BYTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1916 case T_SHORT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1917 case T_CHAR:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1918 case T_INT: /*single_slots++;*/ break; // PPC64: pass ints as longs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1919 case T_ARRAY:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1920 case T_LONG: double_slots++; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1921 default: ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1922 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1923 } else if (in_regs[i].first()->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1924 switch (in_sig_bt[i]) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1925 case T_FLOAT: single_slots++; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1926 case T_DOUBLE: double_slots++; break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1927 default: ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1928 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1929 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1930 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1931 total_save_slots = double_slots * 2 + round_to(single_slots, 2); // round to even
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1932 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1933
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1934 int oop_handle_slot_offset = stack_slots;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1935 stack_slots += total_save_slots; // 3)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1936
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1937 int klass_slot_offset = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1938 int klass_offset = -1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1939 if (method_is_static && !is_critical_native) { // 4)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1940 klass_slot_offset = stack_slots;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1941 klass_offset = klass_slot_offset * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1942 stack_slots += VMRegImpl::slots_per_word;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1943 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1944
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1945 int lock_slot_offset = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1946 int lock_offset = -1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1947 if (method->is_synchronized()) { // 5)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1948 lock_slot_offset = stack_slots;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1949 lock_offset = lock_slot_offset * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1950 stack_slots += VMRegImpl::slots_per_word;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1951 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1952
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1953 int workspace_slot_offset = stack_slots; // 6)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1954 stack_slots += 2;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1955
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1956 // Now compute actual number of stack words we need.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1957 // Rounding to make stack properly aligned.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1958 stack_slots = round_to(stack_slots, // 7)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1959 frame::alignment_in_bytes / VMRegImpl::stack_slot_size);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1960 int frame_size_in_bytes = stack_slots * VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1961
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1962
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1963 // Now we can start generating code.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1964 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1965
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1966 intptr_t start_pc = (intptr_t)__ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1967 intptr_t vep_start_pc;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1968 intptr_t frame_done_pc;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1969 intptr_t oopmap_pc;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1970
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1971 Label ic_miss;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1972 Label handle_pending_exception;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1973
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1974 Register r_callers_sp = R21;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1975 Register r_temp_1 = R22;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1976 Register r_temp_2 = R23;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1977 Register r_temp_3 = R24;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1978 Register r_temp_4 = R25;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1979 Register r_temp_5 = R26;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1980 Register r_temp_6 = R27;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1981 Register r_return_pc = R28;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1982
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1983 Register r_carg1_jnienv = noreg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1984 Register r_carg2_classorobject = noreg;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1985 if (!is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1986 r_carg1_jnienv = out_regs[0].first()->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1987 r_carg2_classorobject = out_regs[1].first()->as_Register();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1988 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1989
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1990
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1991 // Generate the Unverified Entry Point (UEP).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1992 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1993 assert(start_pc == (intptr_t)__ pc(), "uep must be at start");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1994
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1995 // Check ic: object class == cached class?
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1996 if (!method_is_static) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1997 Register ic = as_Register(Matcher::inline_cache_reg_encode());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1998 Register receiver_klass = r_temp_1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1999
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2000 __ cmpdi(CCR0, R3_ARG1, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2001 __ beq(CCR0, ic_miss);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2002 __ verify_oop(R3_ARG1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2003 __ load_klass(receiver_klass, R3_ARG1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2004
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2005 __ cmpd(CCR0, receiver_klass, ic);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2006 __ bne(CCR0, ic_miss);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2007 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2008
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2009
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2010 // Generate the Verified Entry Point (VEP).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2011 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2012 vep_start_pc = (intptr_t)__ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2013
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2014 __ save_LR_CR(r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2015 __ generate_stack_overflow_check(frame_size_in_bytes); // Check before creating frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2016 __ mr(r_callers_sp, R1_SP); // Remember frame pointer.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2017 __ push_frame(frame_size_in_bytes, r_temp_1); // Push the c2n adapter's frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2018 frame_done_pc = (intptr_t)__ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2019
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2020 // Native nmethod wrappers never take possesion of the oop arguments.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2021 // So the caller will gc the arguments.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2022 // The only thing we need an oopMap for is if the call is static.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2023 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2024 // An OopMap for lock (and class if static), and one for the VM call itself.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2025 OopMapSet *oop_maps = new OopMapSet();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2026 OopMap *oop_map = new OopMap(stack_slots * 2, 0 /* arg_slots*/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2027
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2028 if (is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2029 check_needs_gc_for_critical_native(masm, stack_slots, total_in_args, oop_handle_slot_offset, oop_maps, in_regs, in_sig_bt, r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2030 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2031
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2032 // Move arguments from register/stack to register/stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2033 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2034 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2035 // We immediately shuffle the arguments so that for any vm call we have
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2036 // to make from here on out (sync slow path, jvmti, etc.) we will have
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2037 // captured the oops from our caller and have a valid oopMap for them.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2038 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2039 // Natives require 1 or 2 extra arguments over the normal ones: the JNIEnv*
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2040 // (derived from JavaThread* which is in R16_thread) and, if static,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2041 // the class mirror instead of a receiver. This pretty much guarantees that
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2042 // register layout will not match. We ignore these extra arguments during
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2043 // the shuffle. The shuffle is described by the two calling convention
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2044 // vectors we have in our possession. We simply walk the java vector to
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2045 // get the source locations and the c vector to get the destinations.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2046
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2047 // Record sp-based slot for receiver on stack for non-static methods.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2048 int receiver_offset = -1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2049
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2050 // We move the arguments backward because the floating point registers
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2051 // destination will always be to a register with a greater or equal
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2052 // register number or the stack.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2053 // in is the index of the incoming Java arguments
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2054 // out is the index of the outgoing C arguments
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2055
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2056 #ifdef ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2057 bool reg_destroyed[RegisterImpl::number_of_registers];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2058 bool freg_destroyed[FloatRegisterImpl::number_of_registers];
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2059 for (int r = 0 ; r < RegisterImpl::number_of_registers ; r++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2060 reg_destroyed[r] = false;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2061 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2062 for (int f = 0 ; f < FloatRegisterImpl::number_of_registers ; f++) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2063 freg_destroyed[f] = false;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2064 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2065 #endif // ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2066
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2067 for (int in = total_in_args - 1, out = total_c_args - 1; in >= 0 ; in--, out--) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2068
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2069 #ifdef ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2070 if (in_regs[in].first()->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2071 assert(!reg_destroyed[in_regs[in].first()->as_Register()->encoding()], "ack!");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2072 } else if (in_regs[in].first()->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2073 assert(!freg_destroyed[in_regs[in].first()->as_FloatRegister()->encoding()], "ack!");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2074 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2075 if (out_regs[out].first()->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2076 reg_destroyed[out_regs[out].first()->as_Register()->encoding()] = true;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2077 } else if (out_regs[out].first()->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2078 freg_destroyed[out_regs[out].first()->as_FloatRegister()->encoding()] = true;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2079 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2080 if (out_regs2[out].first()->is_Register()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2081 reg_destroyed[out_regs2[out].first()->as_Register()->encoding()] = true;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2082 } else if (out_regs2[out].first()->is_FloatRegister()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2083 freg_destroyed[out_regs2[out].first()->as_FloatRegister()->encoding()] = true;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2084 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2085 #endif // ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2086
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2087 switch (in_sig_bt[in]) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2088 case T_BOOLEAN:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2089 case T_CHAR:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2090 case T_BYTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2091 case T_SHORT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2092 case T_INT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2093 guarantee(in > 0 && in_sig_bt[in-1] == T_LONG,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2094 "expecting type (T_LONG,bt) for bt in {T_BOOLEAN, T_CHAR, T_BYTE, T_SHORT, T_INT}");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2095 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2096 case T_LONG:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2097 if (in_sig_bt[in+1] == T_VOID) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2098 long_move(masm, in_regs[in], out_regs[out], r_callers_sp, r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2099 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2100 guarantee(in_sig_bt[in+1] == T_BOOLEAN || in_sig_bt[in+1] == T_CHAR ||
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2101 in_sig_bt[in+1] == T_BYTE || in_sig_bt[in+1] == T_SHORT ||
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2102 in_sig_bt[in+1] == T_INT,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2103 "expecting type (T_LONG,bt) for bt in {T_BOOLEAN, T_CHAR, T_BYTE, T_SHORT, T_INT}");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2104 int_move(masm, in_regs[in], out_regs[out], r_callers_sp, r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2105 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2106 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2107 case T_ARRAY:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2108 if (is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2109 int body_arg = out;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2110 out -= 2; // Point to length arg. PPC64: pass ints as longs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2111 unpack_array_argument(masm, in_regs[in], in_elem_bt[in], out_regs[body_arg], out_regs[out],
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2112 r_callers_sp, r_temp_1, r_temp_2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2113 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2114 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2115 case T_OBJECT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2116 assert(!is_critical_native, "no oop arguments");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2117 object_move(masm, stack_slots,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2118 oop_map, oop_handle_slot_offset,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2119 ((in == 0) && (!method_is_static)), &receiver_offset,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2120 in_regs[in], out_regs[out],
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2121 r_callers_sp, r_temp_1, r_temp_2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2122 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2123 case T_VOID:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2124 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2125 case T_FLOAT:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2126 float_move(masm, in_regs[in], out_regs[out], r_callers_sp, r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2127 if (out_regs2[out].first()->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2128 float_move(masm, in_regs[in], out_regs2[out], r_callers_sp, r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2129 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2130 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2131 case T_DOUBLE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2132 double_move(masm, in_regs[in], out_regs[out], r_callers_sp, r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2133 if (out_regs2[out].first()->is_valid()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2134 double_move(masm, in_regs[in], out_regs2[out], r_callers_sp, r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2135 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2136 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2137 case T_ADDRESS:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2138 fatal("found type (T_ADDRESS) in java args");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2139 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2140 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2141 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2142 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2143 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2144 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2145
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2146 // Pre-load a static method's oop into ARG2.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2147 // Used both by locking code and the normal JNI call code.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2148 if (method_is_static && !is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2149 __ set_oop_constant(JNIHandles::make_local(method->method_holder()->java_mirror()),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2150 r_carg2_classorobject);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2151
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2152 // Now handlize the static class mirror in carg2. It's known not-null.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2153 __ std(r_carg2_classorobject, klass_offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2154 oop_map->set_oop(VMRegImpl::stack2reg(klass_slot_offset));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2155 __ addi(r_carg2_classorobject, R1_SP, klass_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2156 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2157
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2158 // Get JNIEnv* which is first argument to native.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2159 if (!is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2160 __ addi(r_carg1_jnienv, R16_thread, in_bytes(JavaThread::jni_environment_offset()));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2161 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2162
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2163 // NOTE:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2164 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2165 // We have all of the arguments setup at this point.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2166 // We MUST NOT touch any outgoing regs from this point on.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2167 // So if we must call out we must push a new frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2168
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2169 // Get current pc for oopmap, and load it patchable relative to global toc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2170 oopmap_pc = (intptr_t) __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2171 __ calculate_address_from_global_toc(r_return_pc, (address)oopmap_pc, true, true, true, true);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2172
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2173 // We use the same pc/oopMap repeatedly when we call out.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2174 oop_maps->add_gc_map(oopmap_pc - start_pc, oop_map);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2175
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2176 // r_return_pc now has the pc loaded that we will use when we finally call
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2177 // to native.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2178
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2179 // Make sure that thread is non-volatile; it crosses a bunch of VM calls below.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2180 assert(R16_thread->is_nonvolatile(), "thread must be in non-volatile register");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2181
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2182
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2183 # if 0
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2184 // DTrace method entry
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2185 # endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2186
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2187 // Lock a synchronized method.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2188 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2189
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2190 if (method->is_synchronized()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2191 assert(!is_critical_native, "unhandled");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2192 ConditionRegister r_flag = CCR1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2193 Register r_oop = r_temp_4;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2194 const Register r_box = r_temp_5;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2195 Label done, locked;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2196
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2197 // Load the oop for the object or class. r_carg2_classorobject contains
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2198 // either the handlized oop from the incoming arguments or the handlized
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2199 // class mirror (if the method is static).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2200 __ ld(r_oop, 0, r_carg2_classorobject);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2201
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2202 // Get the lock box slot's address.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2203 __ addi(r_box, R1_SP, lock_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2204
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2205 # ifdef ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2206 if (UseBiasedLocking) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2207 // Making the box point to itself will make it clear it went unused
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2208 // but also be obviously invalid.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2209 __ std(r_box, 0, r_box);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2210 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2211 # endif // ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2212
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2213 // Try fastpath for locking.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2214 // fast_lock kills r_temp_1, r_temp_2, r_temp_3.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2215 __ compiler_fast_lock_object(r_flag, r_oop, r_box, r_temp_1, r_temp_2, r_temp_3);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2216 __ beq(r_flag, locked);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2217
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2218 // None of the above fast optimizations worked so we have to get into the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2219 // slow case of monitor enter. Inline a special case of call_VM that
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2220 // disallows any pending_exception.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2221
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2222 // Save argument registers and leave room for C-compatible ABI_REG_ARGS.
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2223 int frame_size = frame::abi_reg_args_size +
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2224 round_to(total_c_args * wordSize, frame::alignment_in_bytes);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2225 __ mr(R11_scratch1, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2226 RegisterSaver::push_frame_and_save_argument_registers(masm, R12_scratch2, frame_size, total_c_args, out_regs, out_regs2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2227
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2228 // Do the call.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2229 __ set_last_Java_frame(R11_scratch1, r_return_pc);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2230 assert(r_return_pc->is_nonvolatile(), "expecting return pc to be in non-volatile register");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2231 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::complete_monitor_locking_C), r_oop, r_box, R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2232 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2233
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2234 RegisterSaver::restore_argument_registers_and_pop_frame(masm, frame_size, total_c_args, out_regs, out_regs2);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2235
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2236 __ asm_assert_mem8_is_zero(thread_(pending_exception),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2237 "no pending exception allowed on exit from SharedRuntime::complete_monitor_locking_C", 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2238
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2239 __ bind(locked);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2240 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2241
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2242
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2243 // Publish thread state
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2244 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2245
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2246 // Use that pc we placed in r_return_pc a while back as the current frame anchor.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2247 __ set_last_Java_frame(R1_SP, r_return_pc);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2248
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2249 // Transition from _thread_in_Java to _thread_in_native.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2250 __ li(R0, _thread_in_native);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2251 __ release();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2252 // TODO: PPC port assert(4 == JavaThread::sz_thread_state(), "unexpected field size");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2253 __ stw(R0, thread_(thread_state));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2254 if (UseMembar) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2255 __ fence();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2256 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2257
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2258
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2259 // The JNI call
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2260 // --------------------------------------------------------------------------
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2261 #if defined(ABI_ELFv2)
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2262 __ call_c(native_func, relocInfo::runtime_call_type);
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2263 #else
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2264 FunctionDescriptor* fd_native_method = (FunctionDescriptor*) native_func;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2265 __ call_c(fd_native_method, relocInfo::runtime_call_type);
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2266 #endif
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2267
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2268
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2269 // Now, we are back from the native code.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2270
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2271
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2272 // Unpack the native result.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2273 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2274
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2275 // For int-types, we do any needed sign-extension required.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2276 // Care must be taken that the return values (R3_RET and F1_RET)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2277 // will survive any VM calls for blocking or unlocking.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2278 // An OOP result (handle) is done specially in the slow-path code.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2279
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2280 switch (ret_type) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2281 case T_VOID: break; // Nothing to do!
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2282 case T_FLOAT: break; // Got it where we want it (unless slow-path).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2283 case T_DOUBLE: break; // Got it where we want it (unless slow-path).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2284 case T_LONG: break; // Got it where we want it (unless slow-path).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2285 case T_OBJECT: break; // Really a handle.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2286 // Cannot de-handlize until after reclaiming jvm_lock.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2287 case T_ARRAY: break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2288
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2289 case T_BOOLEAN: { // 0 -> false(0); !0 -> true(1)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2290 Label skip_modify;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2291 __ cmpwi(CCR0, R3_RET, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2292 __ beq(CCR0, skip_modify);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2293 __ li(R3_RET, 1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2294 __ bind(skip_modify);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2295 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2296 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2297 case T_BYTE: { // sign extension
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2298 __ extsb(R3_RET, R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2299 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2300 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2301 case T_CHAR: { // unsigned result
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2302 __ andi(R3_RET, R3_RET, 0xffff);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2303 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2304 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2305 case T_SHORT: { // sign extension
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2306 __ extsh(R3_RET, R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2307 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2308 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2309 case T_INT: // nothing to do
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2310 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2311 default:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2312 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2313 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2314 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2315
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2316
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2317 // Publish thread state
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2318 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2319
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2320 // Switch thread to "native transition" state before reading the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2321 // synchronization state. This additional state is necessary because reading
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2322 // and testing the synchronization state is not atomic w.r.t. GC, as this
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2323 // scenario demonstrates:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2324 // - Java thread A, in _thread_in_native state, loads _not_synchronized
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2325 // and is preempted.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2326 // - VM thread changes sync state to synchronizing and suspends threads
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2327 // for GC.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2328 // - Thread A is resumed to finish this native method, but doesn't block
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2329 // here since it didn't see any synchronization in progress, and escapes.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2330
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2331 // Transition from _thread_in_native to _thread_in_native_trans.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2332 __ li(R0, _thread_in_native_trans);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2333 __ release();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2334 // TODO: PPC port assert(4 == JavaThread::sz_thread_state(), "unexpected field size");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2335 __ stw(R0, thread_(thread_state));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2336
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2337
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2338 // Must we block?
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2339 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2340
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2341 // Block, if necessary, before resuming in _thread_in_Java state.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2342 // In order for GC to work, don't clear the last_Java_sp until after blocking.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2343 Label after_transition;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2344 {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2345 Label no_block, sync;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2346
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2347 if (os::is_MP()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2348 if (UseMembar) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2349 // Force this write out before the read below.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2350 __ fence();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2351 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2352 // Write serialization page so VM thread can do a pseudo remote membar.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2353 // We use the current thread pointer to calculate a thread specific
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2354 // offset to write to within the page. This minimizes bus traffic
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2355 // due to cache line collision.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2356 __ serialize_memory(R16_thread, r_temp_4, r_temp_5);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2357 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2358 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2359
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2360 Register sync_state_addr = r_temp_4;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2361 Register sync_state = r_temp_5;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2362 Register suspend_flags = r_temp_6;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2363
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2364 __ load_const(sync_state_addr, SafepointSynchronize::address_of_state(), /*temp*/ sync_state);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2365
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2366 // TODO: PPC port assert(4 == SafepointSynchronize::sz_state(), "unexpected field size");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2367 __ lwz(sync_state, 0, sync_state_addr);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2368
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2369 // TODO: PPC port assert(4 == Thread::sz_suspend_flags(), "unexpected field size");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2370 __ lwz(suspend_flags, thread_(suspend_flags));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2371
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2372 __ acquire();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2373
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2374 Label do_safepoint;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2375 // No synchronization in progress nor yet synchronized.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2376 __ cmpwi(CCR0, sync_state, SafepointSynchronize::_not_synchronized);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2377 // Not suspended.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2378 __ cmpwi(CCR1, suspend_flags, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2379
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2380 __ bne(CCR0, sync);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2381 __ beq(CCR1, no_block);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2382
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2383 // Block. Save any potential method result value before the operation and
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2384 // use a leaf call to leave the last_Java_frame setup undisturbed. Doing this
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2385 // lets us share the oopMap we used when we went native rather than create
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2386 // a distinct one for this pc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2387 __ bind(sync);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2388
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2389 address entry_point = is_critical_native
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2390 ? CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans_and_transition)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2391 : CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2392 save_native_result(masm, ret_type, workspace_slot_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2393 __ call_VM_leaf(entry_point, R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2394 restore_native_result(masm, ret_type, workspace_slot_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2395
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2396 if (is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2397 __ b(after_transition); // No thread state transition here.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2398 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2399 __ bind(no_block);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2400 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2401
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2402 // Publish thread state.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2403 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2404
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2405 // Thread state is thread_in_native_trans. Any safepoint blocking has
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2406 // already happened so we can now change state to _thread_in_Java.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2407
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2408 // Transition from _thread_in_native_trans to _thread_in_Java.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2409 __ li(R0, _thread_in_Java);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2410 __ release();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2411 // TODO: PPC port assert(4 == JavaThread::sz_thread_state(), "unexpected field size");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2412 __ stw(R0, thread_(thread_state));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2413 if (UseMembar) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2414 __ fence();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2415 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2416 __ bind(after_transition);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2417
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2418 // Reguard any pages if necessary.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2419 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2420
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2421 Label no_reguard;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2422 __ lwz(r_temp_1, thread_(stack_guard_state));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2423 __ cmpwi(CCR0, r_temp_1, JavaThread::stack_guard_yellow_disabled);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2424 __ bne(CCR0, no_reguard);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2425
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2426 save_native_result(masm, ret_type, workspace_slot_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2427 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2428 restore_native_result(masm, ret_type, workspace_slot_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2429
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2430 __ bind(no_reguard);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2431
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2432
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2433 // Unlock
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2434 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2435
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2436 if (method->is_synchronized()) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2437
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2438 ConditionRegister r_flag = CCR1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2439 const Register r_oop = r_temp_4;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2440 const Register r_box = r_temp_5;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2441 const Register r_exception = r_temp_6;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2442 Label done;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2443
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2444 // Get oop and address of lock object box.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2445 if (method_is_static) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2446 assert(klass_offset != -1, "");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2447 __ ld(r_oop, klass_offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2448 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2449 assert(receiver_offset != -1, "");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2450 __ ld(r_oop, receiver_offset, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2451 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2452 __ addi(r_box, R1_SP, lock_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2453
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2454 // Try fastpath for unlocking.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2455 __ compiler_fast_unlock_object(r_flag, r_oop, r_box, r_temp_1, r_temp_2, r_temp_3);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2456 __ beq(r_flag, done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2457
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2458 // Save and restore any potential method result value around the unlocking operation.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2459 save_native_result(masm, ret_type, workspace_slot_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2460
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2461 // Must save pending exception around the slow-path VM call. Since it's a
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2462 // leaf call, the pending exception (if any) can be kept in a register.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2463 __ ld(r_exception, thread_(pending_exception));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2464 assert(r_exception->is_nonvolatile(), "exception register must be non-volatile");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2465 __ li(R0, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2466 __ std(R0, thread_(pending_exception));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2467
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2468 // Slow case of monitor enter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2469 // Inline a special case of call_VM that disallows any pending_exception.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2470 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::complete_monitor_unlocking_C), r_oop, r_box);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2471
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2472 __ asm_assert_mem8_is_zero(thread_(pending_exception),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2473 "no pending exception allowed on exit from SharedRuntime::complete_monitor_unlocking_C", 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2474
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2475 restore_native_result(masm, ret_type, workspace_slot_offset);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2476
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2477 // Check_forward_pending_exception jump to forward_exception if any pending
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2478 // exception is set. The forward_exception routine expects to see the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2479 // exception in pending_exception and not in a register. Kind of clumsy,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2480 // since all folks who branch to forward_exception must have tested
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2481 // pending_exception first and hence have it in a register already.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2482 __ std(r_exception, thread_(pending_exception));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2483
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2484 __ bind(done);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2485 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2486
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2487 # if 0
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2488 // DTrace method exit
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2489 # endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2490
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2491 // Clear "last Java frame" SP and PC.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2492 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2493
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2494 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2495
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2496 // Unpack oop result.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2497 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2498
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2499 if (ret_type == T_OBJECT || ret_type == T_ARRAY) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2500 Label skip_unboxing;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2501 __ cmpdi(CCR0, R3_RET, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2502 __ beq(CCR0, skip_unboxing);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2503 __ ld(R3_RET, 0, R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2504 __ bind(skip_unboxing);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2505 __ verify_oop(R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2506 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2507
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2508
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2509 // Reset handle block.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2510 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2511 if (!is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2512 __ ld(r_temp_1, thread_(active_handles));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2513 // TODO: PPC port assert(4 == JNIHandleBlock::top_size_in_bytes(), "unexpected field size");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2514 __ li(r_temp_2, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2515 __ stw(r_temp_2, JNIHandleBlock::top_offset_in_bytes(), r_temp_1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2516
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2517
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2518 // Check for pending exceptions.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2519 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2520 __ ld(r_temp_2, thread_(pending_exception));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2521 __ cmpdi(CCR0, r_temp_2, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2522 __ bne(CCR0, handle_pending_exception);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2523 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2524
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2525 // Return
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2526 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2527
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2528 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2529 __ restore_LR_CR(R11);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2530 __ blr();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2531
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2532
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2533 // Handler for pending exceptions (out-of-line).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2534 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2535
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2536 // Since this is a native call, we know the proper exception handler
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2537 // is the empty function. We just pop this frame and then jump to
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2538 // forward_exception_entry.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2539 if (!is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2540 __ align(InteriorEntryAlignment);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2541 __ bind(handle_pending_exception);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2542
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2543 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2544 __ restore_LR_CR(R11);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2545 __ b64_patchable((address)StubRoutines::forward_exception_entry(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2546 relocInfo::runtime_call_type);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2547 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2548
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2549 // Handler for a cache miss (out-of-line).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2550 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2551
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2552 if (!method_is_static) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2553 __ align(InteriorEntryAlignment);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2554 __ bind(ic_miss);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2555
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2556 __ b64_patchable((address)SharedRuntime::get_ic_miss_stub(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2557 relocInfo::runtime_call_type);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2558 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2559
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2560 // Done.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2561 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2562
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2563 __ flush();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2564
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2565 nmethod *nm = nmethod::new_native_nmethod(method,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2566 compile_id,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2567 masm->code(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2568 vep_start_pc-start_pc,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2569 frame_done_pc-start_pc,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2570 stack_slots / VMRegImpl::slots_per_word,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2571 (method_is_static ? in_ByteSize(klass_offset) : in_ByteSize(receiver_offset)),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2572 in_ByteSize(lock_offset),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2573 oop_maps);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2574
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2575 if (is_critical_native) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2576 nm->set_lazy_critical_native(true);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2577 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2578
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2579 return nm;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2580 #else
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2581 ShouldNotReachHere();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2582 return NULL;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2583 #endif // COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2584 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2585
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2586 // This function returns the adjust size (in number of words) to a c2i adapter
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2587 // activation for use during deoptimization.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2588 int Deoptimization::last_frame_adjust(int callee_parameters, int callee_locals) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2589 return round_to((callee_locals - callee_parameters) * Interpreter::stackElementWords, frame::alignment_in_bytes);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2590 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2591
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2592 uint SharedRuntime::out_preserve_stack_slots() {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2593 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2594 return frame::jit_out_preserve_size / VMRegImpl::stack_slot_size;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2595 #else
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2596 return 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2597 #endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2598 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2599
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2600 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2601 // Frame generation for deopt and uncommon trap blobs.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2602 static void push_skeleton_frame(MacroAssembler* masm, bool deopt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2603 /* Read */
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2604 Register unroll_block_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2605 /* Update */
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2606 Register frame_sizes_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2607 Register number_of_frames_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2608 Register pcs_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2609 /* Invalidate */
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2610 Register frame_size_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2611 Register pc_reg) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2612
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2613 __ ld(pc_reg, 0, pcs_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2614 __ ld(frame_size_reg, 0, frame_sizes_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2615 __ std(pc_reg, _abi(lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2616 __ push_frame(frame_size_reg, R0/*tmp*/);
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
2617 #ifdef CC_INTERP
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2618 __ std(R1_SP, _parent_ijava_frame_abi(initial_caller_sp), R1_SP);
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
2619 #else
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
2620 Unimplemented();
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
2621 #endif
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2622 __ addi(number_of_frames_reg, number_of_frames_reg, -1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2623 __ addi(frame_sizes_reg, frame_sizes_reg, wordSize);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2624 __ addi(pcs_reg, pcs_reg, wordSize);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2625 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2626
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2627 // Loop through the UnrollBlock info and create new frames.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2628 static void push_skeleton_frames(MacroAssembler* masm, bool deopt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2629 /* read */
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2630 Register unroll_block_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2631 /* invalidate */
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2632 Register frame_sizes_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2633 Register number_of_frames_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2634 Register pcs_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2635 Register frame_size_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2636 Register pc_reg) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2637 Label loop;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2638
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2639 // _number_of_frames is of type int (deoptimization.hpp)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2640 __ lwa(number_of_frames_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2641 Deoptimization::UnrollBlock::number_of_frames_offset_in_bytes(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2642 unroll_block_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2643 __ ld(pcs_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2644 Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2645 unroll_block_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2646 __ ld(frame_sizes_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2647 Deoptimization::UnrollBlock::frame_sizes_offset_in_bytes(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2648 unroll_block_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2649
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2650 // stack: (caller_of_deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2651
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2652 // At this point we either have an interpreter frame or a compiled
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2653 // frame on top of stack. If it is a compiled frame we push a new c2i
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2654 // adapter here
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2655
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2656 // Memorize top-frame stack-pointer.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2657 __ mr(frame_size_reg/*old_sp*/, R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2658
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2659 // Resize interpreter top frame OR C2I adapter.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2660
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2661 // At this moment, the top frame (which is the caller of the deoptee) is
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2662 // an interpreter frame or a newly pushed C2I adapter or an entry frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2663 // The top frame has a TOP_IJAVA_FRAME_ABI and the frame contains the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2664 // outgoing arguments.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2665 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2666 // In order to push the interpreter frame for the deoptee, we need to
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2667 // resize the top frame such that we are able to place the deoptee's
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2668 // locals in the frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2669 // Additionally, we have to turn the top frame's TOP_IJAVA_FRAME_ABI
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2670 // into a valid PARENT_IJAVA_FRAME_ABI.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2671
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2672 __ lwa(R11_scratch1,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2673 Deoptimization::UnrollBlock::caller_adjustment_offset_in_bytes(),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2674 unroll_block_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2675 __ neg(R11_scratch1, R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2676
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2677 // R11_scratch1 contains size of locals for frame resizing.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2678 // R12_scratch2 contains top frame's lr.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2679
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2680 // Resize frame by complete frame size prevents TOC from being
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2681 // overwritten by locals. A more stack space saving way would be
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2682 // to copy the TOC to its location in the new abi.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2683 __ addi(R11_scratch1, R11_scratch1, - frame::parent_ijava_frame_abi_size);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2684
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2685 // now, resize the frame
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2686 __ resize_frame(R11_scratch1, pc_reg/*tmp*/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2687
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2688 // In the case where we have resized a c2i frame above, the optional
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2689 // alignment below the locals has size 32 (why?).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2690 __ std(R12_scratch2, _abi(lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2691
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2692 // Initialize initial_caller_sp.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2693 __ std(frame_size_reg/*old_sp*/, _parent_ijava_frame_abi(initial_caller_sp), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2694
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2695 #ifdef ASSERT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2696 // Make sure that there is at least one entry in the array.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2697 __ cmpdi(CCR0, number_of_frames_reg, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2698 __ asm_assert_ne("array_size must be > 0", 0x205);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2699 #endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2700
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2701 // Now push the new interpreter frames.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2702 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2703 __ bind(loop);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2704 // Allocate a new frame, fill in the pc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2705 push_skeleton_frame(masm, deopt,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2706 unroll_block_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2707 frame_sizes_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2708 number_of_frames_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2709 pcs_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2710 frame_size_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2711 pc_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2712 __ cmpdi(CCR0, number_of_frames_reg, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2713 __ bne(CCR0, loop);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2714
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2715 // Get the return address pointing into the frame manager.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2716 __ ld(R0, 0, pcs_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2717 // Store it in the top interpreter frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2718 __ std(R0, _abi(lr), R1_SP);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2719 // Initialize frame_manager_lr of interpreter top frame.
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
2720 #ifdef CC_INTERP
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2721 __ std(R0, _top_ijava_frame_abi(frame_manager_lr), R1_SP);
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
2722 #endif
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2723 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2724 #endif
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2725
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2726 void SharedRuntime::generate_deopt_blob() {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2727 // Allocate space for the code
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2728 ResourceMark rm;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2729 // Setup code generation tools
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2730 CodeBuffer buffer("deopt_blob", 2048, 1024);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2731 InterpreterMacroAssembler* masm = new InterpreterMacroAssembler(&buffer);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2732 Label exec_mode_initialized;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2733 int frame_size_in_words;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2734 OopMap* map = NULL;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2735 OopMapSet *oop_maps = new OopMapSet();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2736
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2737 // size of ABI112 plus spill slots for R3_RET and F1_RET.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2738 const int frame_size_in_bytes = frame::abi_reg_args_spill_size;
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2739 const int frame_size_in_slots = frame_size_in_bytes / sizeof(jint);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2740 int first_frame_size_in_bytes = 0; // frame size of "unpack frame" for call to fetch_unroll_info.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2741
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2742 const Register exec_mode_reg = R21_tmp1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2743
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2744 const address start = __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2745
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2746 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2747 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2748 // Prolog for non exception case!
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2749
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2750 // We have been called from the deopt handler of the deoptee.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2751 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2752 // deoptee:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2753 // ...
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2754 // call X
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2755 // ...
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2756 // deopt_handler: call_deopt_stub
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2757 // cur. return pc --> ...
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2758 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2759 // So currently SR_LR points behind the call in the deopt handler.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2760 // We adjust it such that it points to the start of the deopt handler.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2761 // The return_pc has been stored in the frame of the deoptee and
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2762 // will replace the address of the deopt_handler in the call
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2763 // to Deoptimization::fetch_unroll_info below.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2764 // We can't grab a free register here, because all registers may
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2765 // contain live values, so let the RegisterSaver do the adjustment
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2766 // of the return pc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2767 const int return_pc_adjustment_no_exception = -size_deopt_handler();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2768
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2769 // Push the "unpack frame"
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2770 // Save everything in sight.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2771 map = RegisterSaver::push_frame_reg_args_and_save_live_registers(masm,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2772 &first_frame_size_in_bytes,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2773 /*generate_oop_map=*/ true,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2774 return_pc_adjustment_no_exception,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2775 RegisterSaver::return_pc_is_lr);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2776 assert(map != NULL, "OopMap must have been created");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2777
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2778 __ li(exec_mode_reg, Deoptimization::Unpack_deopt);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2779 // Save exec mode for unpack_frames.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2780 __ b(exec_mode_initialized);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2781
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2782 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2783 // Prolog for exception case
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2784
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2785 // An exception is pending.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2786 // We have been called with a return (interpreter) or a jump (exception blob).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2787 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2788 // - R3_ARG1: exception oop
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2789 // - R4_ARG2: exception pc
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2790
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2791 int exception_offset = __ pc() - start;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2792
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2793 BLOCK_COMMENT("Prolog for exception case");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2794
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2795 // The RegisterSaves doesn't need to adjust the return pc for this situation.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2796 const int return_pc_adjustment_exception = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2797
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2798 // Push the "unpack frame".
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2799 // Save everything in sight.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2800 assert(R4 == R4_ARG2, "exception pc must be in r4");
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2801 RegisterSaver::push_frame_reg_args_and_save_live_registers(masm,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2802 &first_frame_size_in_bytes,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2803 /*generate_oop_map=*/ false,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2804 return_pc_adjustment_exception,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2805 RegisterSaver::return_pc_is_r4);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2806
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2807 // Deopt during an exception. Save exec mode for unpack_frames.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2808 __ li(exec_mode_reg, Deoptimization::Unpack_exception);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2809
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2810 // Store exception oop and pc in thread (location known to GC).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2811 // This is needed since the call to "fetch_unroll_info()" may safepoint.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2812 __ std(R3_ARG1, in_bytes(JavaThread::exception_oop_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2813 __ std(R4_ARG2, in_bytes(JavaThread::exception_pc_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2814
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2815 // fall through
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2816
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2817 // --------------------------------------------------------------------------
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2818 __ BIND(exec_mode_initialized);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2819
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2820 {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2821 const Register unroll_block_reg = R22_tmp2;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2822
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2823 // We need to set `last_Java_frame' because `fetch_unroll_info' will
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2824 // call `last_Java_frame()'. The value of the pc in the frame is not
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2825 // particularly important. It just needs to identify this blob.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2826 __ set_last_Java_frame(R1_SP, noreg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2827
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2828 // With EscapeAnalysis turned on, this call may safepoint!
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2829 __ call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::fetch_unroll_info), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2830 address calls_return_pc = __ last_calls_return_pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2831 // Set an oopmap for the call site that describes all our saved registers.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2832 oop_maps->add_gc_map(calls_return_pc - start, map);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2833
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2834 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2835 // Save the return value.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2836 __ mr(unroll_block_reg, R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2837
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2838 // Restore only the result registers that have been saved
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2839 // by save_volatile_registers(...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2840 RegisterSaver::restore_result_registers(masm, first_frame_size_in_bytes);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2841
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2842 // In excp_deopt_mode, restore and clear exception oop which we
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2843 // stored in the thread during exception entry above. The exception
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2844 // oop will be the return value of this stub.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2845 Label skip_restore_excp;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2846 __ cmpdi(CCR0, exec_mode_reg, Deoptimization::Unpack_exception);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2847 __ bne(CCR0, skip_restore_excp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2848 __ ld(R3_RET, in_bytes(JavaThread::exception_oop_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2849 __ ld(R4_ARG2, in_bytes(JavaThread::exception_pc_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2850 __ li(R0, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2851 __ std(R0, in_bytes(JavaThread::exception_pc_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2852 __ std(R0, in_bytes(JavaThread::exception_oop_offset()), R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2853 __ BIND(skip_restore_excp);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2854
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2855 // reload narrro_oop_base
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2856 if (UseCompressedOops && Universe::narrow_oop_base() != 0) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2857 __ load_const_optimized(R30, Universe::narrow_oop_base());
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2858 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2859
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2860 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2861
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2862 // stack: (deoptee, optional i2c, caller of deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2863
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2864 // pop the deoptee's frame
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2865 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2866
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2867 // stack: (caller_of_deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2868
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2869 // Loop through the `UnrollBlock' info and create interpreter frames.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2870 push_skeleton_frames(masm, true/*deopt*/,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2871 unroll_block_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2872 R23_tmp3,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2873 R24_tmp4,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2874 R25_tmp5,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2875 R26_tmp6,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2876 R27_tmp7);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2877
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2878 // stack: (skeletal interpreter frame, ..., optional skeletal
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2879 // interpreter frame, optional c2i, caller of deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2880 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2881
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2882 // push an `unpack_frame' taking care of float / int return values.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2883 __ push_frame(frame_size_in_bytes, R0/*tmp*/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2884
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2885 // stack: (unpack frame, skeletal interpreter frame, ..., optional
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2886 // skeletal interpreter frame, optional c2i, caller of deoptee,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2887 // ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2888
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2889 // Spill live volatile registers since we'll do a call.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2890 __ std( R3_RET, _abi_reg_args_spill(spill_ret), R1_SP);
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2891 __ stfd(F1_RET, _abi_reg_args_spill(spill_fret), R1_SP);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2892
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2893 // Let the unpacker layout information in the skeletal frames just
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2894 // allocated.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2895 __ get_PC_trash_LR(R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2896 __ set_last_Java_frame(/*sp*/R1_SP, /*pc*/R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2897 // This is a call to a LEAF method, so no oop map is required.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2898 __ call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::unpack_frames),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2899 R16_thread/*thread*/, exec_mode_reg/*exec_mode*/);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2900 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2901
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2902 // Restore the volatiles saved above.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2903 __ ld( R3_RET, _abi_reg_args_spill(spill_ret), R1_SP);
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2904 __ lfd(F1_RET, _abi_reg_args_spill(spill_fret), R1_SP);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2905
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2906 // Pop the unpack frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2907 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2908 __ restore_LR_CR(R0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2909
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2910 // stack: (top interpreter frame, ..., optional interpreter frame,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2911 // optional c2i, caller of deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2912
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2913 // Initialize R14_state.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2914 __ ld(R14_state, 0, R1_SP);
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
2915 __ addi(R14_state, R14_state, -frame::interpreter_frame_cinterpreterstate_size_in_bytes());
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2916 // Also inititialize R15_prev_state.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2917 __ restore_prev_state();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2918
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2919 // Return to the interpreter entry point.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2920 __ blr();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2921 __ flush();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2922 #else // COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2923 __ unimplemented("deopt blob needed only with compiler");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2924 int exception_offset = __ pc() - start;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2925 #endif // COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2926
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2927 _deopt_blob = DeoptimizationBlob::create(&buffer, oop_maps, 0, exception_offset, 0, first_frame_size_in_bytes / wordSize);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2928 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2929
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2930 #ifdef COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2931 void SharedRuntime::generate_uncommon_trap_blob() {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2932 // Allocate space for the code.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2933 ResourceMark rm;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2934 // Setup code generation tools.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2935 CodeBuffer buffer("uncommon_trap_blob", 2048, 1024);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2936 InterpreterMacroAssembler* masm = new InterpreterMacroAssembler(&buffer);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2937 address start = __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2938
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2939 Register unroll_block_reg = R21_tmp1;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2940 Register klass_index_reg = R22_tmp2;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2941 Register unc_trap_reg = R23_tmp3;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2942
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2943 OopMapSet* oop_maps = new OopMapSet();
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2944 int frame_size_in_bytes = frame::abi_reg_args_size;
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2945 OopMap* map = new OopMap(frame_size_in_bytes / sizeof(jint), 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2946
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2947 // stack: (deoptee, optional i2c, caller_of_deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2948
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2949 // Push a dummy `unpack_frame' and call
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2950 // `Deoptimization::uncommon_trap' to pack the compiled frame into a
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2951 // vframe array and return the `UnrollBlock' information.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2952
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2953 // Save LR to compiled frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2954 __ save_LR_CR(R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2955
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2956 // Push an "uncommon_trap" frame.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
2957 __ push_frame_reg_args(0, R11_scratch1);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2958
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2959 // stack: (unpack frame, deoptee, optional i2c, caller_of_deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2960
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2961 // Set the `unpack_frame' as last_Java_frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2962 // `Deoptimization::uncommon_trap' expects it and considers its
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2963 // sender frame as the deoptee frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2964 // Remember the offset of the instruction whose address will be
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2965 // moved to R11_scratch1.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2966 address gc_map_pc = __ get_PC_trash_LR(R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2967
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2968 __ set_last_Java_frame(/*sp*/R1_SP, /*pc*/R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2969
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2970 __ mr(klass_index_reg, R3);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2971 __ call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::uncommon_trap),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2972 R16_thread, klass_index_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2973
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2974 // Set an oopmap for the call site.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2975 oop_maps->add_gc_map(gc_map_pc - start, map);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2976
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2977 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2978
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2979 // Pop the `unpack frame'.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2980 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2981
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2982 // stack: (deoptee, optional i2c, caller_of_deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2983
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2984 // Save the return value.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2985 __ mr(unroll_block_reg, R3_RET);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2986
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2987 // Pop the uncommon_trap frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2988 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2989
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2990 // stack: (caller_of_deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2991
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2992 // Allocate new interpreter frame(s) and possibly a c2i adapter
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2993 // frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2994 push_skeleton_frames(masm, false/*deopt*/,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2995 unroll_block_reg,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2996 R22_tmp2,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2997 R23_tmp3,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2998 R24_tmp4,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2999 R25_tmp5,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3000 R26_tmp6);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3001
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3002 // stack: (skeletal interpreter frame, ..., optional skeletal
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3003 // interpreter frame, optional c2i, caller of deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3004
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3005 // Push a dummy `unpack_frame' taking care of float return values.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3006 // Call `Deoptimization::unpack_frames' to layout information in the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3007 // interpreter frames just created.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3008
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3009 // Push a simple "unpack frame" here.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3010 __ push_frame_reg_args(0, R11_scratch1);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3011
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3012 // stack: (unpack frame, skeletal interpreter frame, ..., optional
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3013 // skeletal interpreter frame, optional c2i, caller of deoptee,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3014 // ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3015
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3016 // Set the "unpack_frame" as last_Java_frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3017 __ get_PC_trash_LR(R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3018 __ set_last_Java_frame(/*sp*/R1_SP, /*pc*/R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3019
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3020 // Indicate it is the uncommon trap case.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3021 __ li(unc_trap_reg, Deoptimization::Unpack_uncommon_trap);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3022 // Let the unpacker layout information in the skeletal frames just
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3023 // allocated.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3024 __ call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::unpack_frames),
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3025 R16_thread, unc_trap_reg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3026
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3027 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3028 // Pop the `unpack frame'.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3029 __ pop_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3030 // Restore LR from top interpreter frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3031 __ restore_LR_CR(R11_scratch1);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3032
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3033 // stack: (top interpreter frame, ..., optional interpreter frame,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3034 // optional c2i, caller of deoptee, ...).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3035
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3036 // Initialize R14_state, ...
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3037 __ ld(R11_scratch1, 0, R1_SP);
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14436
diff changeset
3038 __ addi(R14_state, R11_scratch1, -frame::interpreter_frame_cinterpreterstate_size_in_bytes());
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3039 // also initialize R15_prev_state.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3040 __ restore_prev_state();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3041 // Return to the interpreter entry point.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3042 __ blr();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3043
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3044 masm->flush();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3045
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3046 _uncommon_trap_blob = UncommonTrapBlob::create(&buffer, oop_maps, frame_size_in_bytes/wordSize);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3047 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3048 #endif // COMPILER2
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3049
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3050 // Generate a special Compile2Runtime blob that saves all registers, and setup oopmap.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3051 SafepointBlob* SharedRuntime::generate_handler_blob(address call_ptr, int poll_type) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3052 assert(StubRoutines::forward_exception_entry() != NULL,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3053 "must be generated before");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3054
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3055 ResourceMark rm;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3056 OopMapSet *oop_maps = new OopMapSet();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3057 OopMap* map;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3058
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3059 // Allocate space for the code. Setup code generation tools.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3060 CodeBuffer buffer("handler_blob", 2048, 1024);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3061 MacroAssembler* masm = new MacroAssembler(&buffer);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3062
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3063 address start = __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3064 int frame_size_in_bytes = 0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3065
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3066 RegisterSaver::ReturnPCLocation return_pc_location;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3067 bool cause_return = (poll_type == POLL_AT_RETURN);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3068 if (cause_return) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3069 // Nothing to do here. The frame has already been popped in MachEpilogNode.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3070 // Register LR already contains the return pc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3071 return_pc_location = RegisterSaver::return_pc_is_lr;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3072 } else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3073 // Use thread()->saved_exception_pc() as return pc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3074 return_pc_location = RegisterSaver::return_pc_is_thread_saved_exception_pc;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3075 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3076
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3077 // Save registers, fpu state, and flags.
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3078 map = RegisterSaver::push_frame_reg_args_and_save_live_registers(masm,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3079 &frame_size_in_bytes,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3080 /*generate_oop_map=*/ true,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3081 /*return_pc_adjustment=*/0,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3082 return_pc_location);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3083
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3084 // The following is basically a call_VM. However, we need the precise
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3085 // address of the call in order to generate an oopmap. Hence, we do all the
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3086 // work outselves.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3087 __ set_last_Java_frame(/*sp=*/R1_SP, /*pc=*/noreg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3088
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3089 // The return address must always be correct so that the frame constructor
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3090 // never sees an invalid pc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3091
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3092 // Do the call
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3093 __ call_VM_leaf(call_ptr, R16_thread);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3094 address calls_return_pc = __ last_calls_return_pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3095
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3096 // Set an oopmap for the call site. This oopmap will map all
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3097 // oop-registers and debug-info registers as callee-saved. This
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3098 // will allow deoptimization at this safepoint to find all possible
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3099 // debug-info recordings, as well as let GC find all oops.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3100 oop_maps->add_gc_map(calls_return_pc - start, map);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3101
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3102 Label noException;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3103
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3104 // Clear the last Java frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3105 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3106
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3107 BLOCK_COMMENT(" Check pending exception.");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3108 const Register pending_exception = R0;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3109 __ ld(pending_exception, thread_(pending_exception));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3110 __ cmpdi(CCR0, pending_exception, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3111 __ beq(CCR0, noException);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3112
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3113 // Exception pending
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3114 RegisterSaver::restore_live_registers_and_pop_frame(masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3115 frame_size_in_bytes,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3116 /*restore_ctr=*/true);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3117
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3118
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3119 BLOCK_COMMENT(" Jump to forward_exception_entry.");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3120 // Jump to forward_exception_entry, with the issuing PC in LR
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3121 // so it looks like the original nmethod called forward_exception_entry.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3122 __ b64_patchable(StubRoutines::forward_exception_entry(), relocInfo::runtime_call_type);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3123
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3124 // No exception case.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3125 __ BIND(noException);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3126
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3127
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3128 // Normal exit, restore registers and exit.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3129 RegisterSaver::restore_live_registers_and_pop_frame(masm,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3130 frame_size_in_bytes,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3131 /*restore_ctr=*/true);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3132
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3133 __ blr();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3134
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3135 // Make sure all code is generated
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3136 masm->flush();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3137
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3138 // Fill-out other meta info
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3139 // CodeBlob frame size is in words.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3140 return SafepointBlob::create(&buffer, oop_maps, frame_size_in_bytes / wordSize);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3141 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3142
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3143 // generate_resolve_blob - call resolution (static/virtual/opt-virtual/ic-miss)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3144 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3145 // Generate a stub that calls into the vm to find out the proper destination
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3146 // of a java call. All the argument registers are live at this point
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3147 // but since this is generic code we don't know what they are and the caller
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3148 // must do any gc of the args.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3149 //
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3150 RuntimeStub* SharedRuntime::generate_resolve_blob(address destination, const char* name) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3151
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3152 // allocate space for the code
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3153 ResourceMark rm;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3154
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3155 CodeBuffer buffer(name, 1000, 512);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3156 MacroAssembler* masm = new MacroAssembler(&buffer);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3157
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3158 int frame_size_in_bytes;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3159
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3160 OopMapSet *oop_maps = new OopMapSet();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3161 OopMap* map = NULL;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3162
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3163 address start = __ pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3164
14684
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3165 map = RegisterSaver::push_frame_reg_args_and_save_live_registers(masm,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3166 &frame_size_in_bytes,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3167 /*generate_oop_map*/ true,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3168 /*return_pc_adjustment*/ 0,
e5e8aa897002 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 14445
diff changeset
3169 RegisterSaver::return_pc_is_lr);
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3170
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3171 // Use noreg as last_Java_pc, the return pc will be reconstructed
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3172 // from the physical frame.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3173 __ set_last_Java_frame(/*sp*/R1_SP, noreg);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3174
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3175 int frame_complete = __ offset();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3176
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3177 // Pass R19_method as 2nd (optional) argument, used by
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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3178 // counter_overflow_stub.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3179 __ call_VM_leaf(destination, R16_thread, R19_method);
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diff changeset
3180 address calls_return_pc = __ last_calls_return_pc();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3181 // Set an oopmap for the call site.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3182 // We need this not only for callee-saved registers, but also for volatile
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3183 // registers that the compiler might be keeping live across a safepoint.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3184 // Create the oopmap for the call's return pc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3185 oop_maps->add_gc_map(calls_return_pc - start, map);
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parents:
diff changeset
3186
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3187 // R3_RET contains the address we are going to jump to assuming no exception got installed.
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diff changeset
3188
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3189 // clear last_Java_sp
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3190 __ reset_last_Java_frame();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3191
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3192 // Check for pending exceptions.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3193 BLOCK_COMMENT("Check for pending exceptions.");
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3194 Label pending;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3195 __ ld(R11_scratch1, thread_(pending_exception));
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3196 __ cmpdi(CCR0, R11_scratch1, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3197 __ bne(CCR0, pending);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3198
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3199 __ mtctr(R3_RET); // Ctr will not be touched by restore_live_registers_and_pop_frame.
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parents:
diff changeset
3200
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3201 RegisterSaver::restore_live_registers_and_pop_frame(masm, frame_size_in_bytes, /*restore_ctr*/ false);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3202
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3203 // Get the returned methodOop.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3204 __ get_vm_result_2(R19_method);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3205
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diff changeset
3206 __ bctr();
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parents:
diff changeset
3207
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3208
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3209 // Pending exception after the safepoint.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3210 __ BIND(pending);
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parents:
diff changeset
3211
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diff changeset
3212 RegisterSaver::restore_live_registers_and_pop_frame(masm, frame_size_in_bytes, /*restore_ctr*/ true);
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parents:
diff changeset
3213
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diff changeset
3214 // exception pending => remove activation and forward to exception handler
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diff changeset
3215
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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3216 __ li(R11_scratch1, 0);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3217 __ ld(R3_ARG1, thread_(pending_exception));
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diff changeset
3218 __ std(R11_scratch1, in_bytes(JavaThread::vm_result_offset()), R16_thread);
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diff changeset
3219 __ b64_patchable(StubRoutines::forward_exception_entry(), relocInfo::runtime_call_type);
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diff changeset
3220
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3221 // -------------
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diff changeset
3222 // Make sure all code is generated.
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diff changeset
3223 masm->flush();
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3224
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3225 // return the blob
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diff changeset
3226 // frame_size_words or bytes??
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diff changeset
3227 return RuntimeStub::new_runtime_stub(name, &buffer, frame_complete, frame_size_in_bytes/wordSize,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
3228 oop_maps, true);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
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diff changeset
3229 }