annotate src/cpu/x86/vm/cppInterpreter_x86.cpp @ 10973:ef57c43512d6

8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux Reviewed-by: dholmes, coleenp Contributed-by: jeremymanson@google.com, calvin.cheung@oracle.com
author ccheung
date Thu, 13 Jun 2013 22:02:40 -0700
parents 603ca7e51354
children bd3237e0e18d
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1 /*
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2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "asm/macroAssembler.hpp"
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27 #include "interpreter/bytecodeHistogram.hpp"
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28 #include "interpreter/cppInterpreter.hpp"
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29 #include "interpreter/interpreter.hpp"
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30 #include "interpreter/interpreterGenerator.hpp"
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31 #include "interpreter/interpreterRuntime.hpp"
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32 #include "oops/arrayOop.hpp"
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33 #include "oops/methodData.hpp"
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34 #include "oops/method.hpp"
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35 #include "oops/oop.inline.hpp"
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36 #include "prims/jvmtiExport.hpp"
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37 #include "prims/jvmtiThreadState.hpp"
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38 #include "runtime/arguments.hpp"
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39 #include "runtime/deoptimization.hpp"
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40 #include "runtime/frame.inline.hpp"
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41 #include "runtime/interfaceSupport.hpp"
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42 #include "runtime/sharedRuntime.hpp"
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43 #include "runtime/stubRoutines.hpp"
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44 #include "runtime/synchronizer.hpp"
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45 #include "runtime/timer.hpp"
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46 #include "runtime/vframeArray.hpp"
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47 #include "utilities/debug.hpp"
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48 #include "utilities/macros.hpp"
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49 #ifdef SHARK
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50 #include "shark/shark_globals.hpp"
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51 #endif
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52
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53 #ifdef CC_INTERP
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54
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55 // Routine exists to make tracebacks look decent in debugger
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56 // while we are recursed in the frame manager/c++ interpreter.
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57 // We could use an address in the frame manager but having
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58 // frames look natural in the debugger is a plus.
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59 extern "C" void RecursiveInterpreterActivation(interpreterState istate )
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60 {
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61 //
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62 ShouldNotReachHere();
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63 }
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64
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65
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66 #define __ _masm->
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67 #define STATE(field_name) (Address(state, byte_offset_of(BytecodeInterpreter, field_name)))
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68
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69 Label fast_accessor_slow_entry_path; // fast accessor methods need to be able to jmp to unsynchronized
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70 // c++ interpreter entry point this holds that entry point label.
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71
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72 // default registers for state and sender_sp
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73 // state and sender_sp are the same on 32bit because we have no choice.
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74 // state could be rsi on 64bit but it is an arg reg and not callee save
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75 // so r13 is better choice.
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76
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77 const Register state = NOT_LP64(rsi) LP64_ONLY(r13);
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78 const Register sender_sp_on_entry = NOT_LP64(rsi) LP64_ONLY(r13);
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79
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80 // NEEDED for JVMTI?
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81 // address AbstractInterpreter::_remove_activation_preserving_args_entry;
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82
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83 static address unctrap_frame_manager_entry = NULL;
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84
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85 static address deopt_frame_manager_return_atos = NULL;
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86 static address deopt_frame_manager_return_btos = NULL;
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87 static address deopt_frame_manager_return_itos = NULL;
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88 static address deopt_frame_manager_return_ltos = NULL;
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89 static address deopt_frame_manager_return_ftos = NULL;
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90 static address deopt_frame_manager_return_dtos = NULL;
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91 static address deopt_frame_manager_return_vtos = NULL;
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92
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93 int AbstractInterpreter::BasicType_as_index(BasicType type) {
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94 int i = 0;
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95 switch (type) {
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96 case T_BOOLEAN: i = 0; break;
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97 case T_CHAR : i = 1; break;
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98 case T_BYTE : i = 2; break;
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99 case T_SHORT : i = 3; break;
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100 case T_INT : i = 4; break;
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101 case T_VOID : i = 5; break;
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102 case T_FLOAT : i = 8; break;
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103 case T_LONG : i = 9; break;
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104 case T_DOUBLE : i = 6; break;
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105 case T_OBJECT : // fall through
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106 case T_ARRAY : i = 7; break;
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107 default : ShouldNotReachHere();
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108 }
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109 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds");
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110 return i;
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111 }
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112
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113 // Is this pc anywhere within code owned by the interpreter?
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114 // This only works for pc that might possibly be exposed to frame
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115 // walkers. It clearly misses all of the actual c++ interpreter
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116 // implementation
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117 bool CppInterpreter::contains(address pc) {
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118 return (_code->contains(pc) ||
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119 pc == CAST_FROM_FN_PTR(address, RecursiveInterpreterActivation));
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120 }
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121
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122
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123 address CppInterpreterGenerator::generate_result_handler_for(BasicType type) {
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124 address entry = __ pc();
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125 switch (type) {
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126 case T_BOOLEAN: __ c2bool(rax); break;
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127 case T_CHAR : __ andl(rax, 0xFFFF); break;
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128 case T_BYTE : __ sign_extend_byte (rax); break;
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129 case T_SHORT : __ sign_extend_short(rax); break;
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130 case T_VOID : // fall thru
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131 case T_LONG : // fall thru
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132 case T_INT : /* nothing to do */ break;
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133
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134 case T_DOUBLE :
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135 case T_FLOAT :
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136 {
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137 const Register t = InterpreterRuntime::SignatureHandlerGenerator::temp();
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138 __ pop(t); // remove return address first
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139 // Must return a result for interpreter or compiler. In SSE
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140 // mode, results are returned in xmm0 and the FPU stack must
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141 // be empty.
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142 if (type == T_FLOAT && UseSSE >= 1) {
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143 #ifndef _LP64
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144 // Load ST0
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145 __ fld_d(Address(rsp, 0));
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146 // Store as float and empty fpu stack
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147 __ fstp_s(Address(rsp, 0));
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148 #endif // !_LP64
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149 // and reload
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150 __ movflt(xmm0, Address(rsp, 0));
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151 } else if (type == T_DOUBLE && UseSSE >= 2 ) {
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152 __ movdbl(xmm0, Address(rsp, 0));
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153 } else {
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154 // restore ST0
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155 __ fld_d(Address(rsp, 0));
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156 }
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157 // and pop the temp
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158 __ addptr(rsp, 2 * wordSize);
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159 __ push(t); // restore return address
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160 }
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161 break;
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162 case T_OBJECT :
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163 // retrieve result from frame
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164 __ movptr(rax, STATE(_oop_temp));
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165 // and verify it
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166 __ verify_oop(rax);
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167 break;
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168 default : ShouldNotReachHere();
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169 }
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170 __ ret(0); // return from result handler
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171 return entry;
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172 }
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173
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174 // tosca based result to c++ interpreter stack based result.
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175 // Result goes to top of native stack.
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176
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177 #undef EXTEND // SHOULD NOT BE NEEDED
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178 address CppInterpreterGenerator::generate_tosca_to_stack_converter(BasicType type) {
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179 // A result is in the tosca (abi result) from either a native method call or compiled
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180 // code. Place this result on the java expression stack so C++ interpreter can use it.
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181 address entry = __ pc();
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182
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183 const Register t = InterpreterRuntime::SignatureHandlerGenerator::temp();
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184 __ pop(t); // remove return address first
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185 switch (type) {
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186 case T_VOID:
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187 break;
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188 case T_BOOLEAN:
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189 #ifdef EXTEND
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190 __ c2bool(rax);
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191 #endif
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192 __ push(rax);
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193 break;
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194 case T_CHAR :
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195 #ifdef EXTEND
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196 __ andl(rax, 0xFFFF);
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197 #endif
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198 __ push(rax);
0
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199 break;
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200 case T_BYTE :
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201 #ifdef EXTEND
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202 __ sign_extend_byte (rax);
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203 #endif
304
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204 __ push(rax);
0
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205 break;
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206 case T_SHORT :
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207 #ifdef EXTEND
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208 __ sign_extend_short(rax);
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209 #endif
304
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210 __ push(rax);
0
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211 break;
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212 case T_LONG :
304
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213 __ push(rdx); // pushes useless junk on 64bit
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214 __ push(rax);
0
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215 break;
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216 case T_INT :
304
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217 __ push(rax);
0
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218 break;
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219 case T_FLOAT :
304
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220 // Result is in ST(0)/xmm0
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221 __ subptr(rsp, wordSize);
0
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222 if ( UseSSE < 1) {
304
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223 __ fstp_s(Address(rsp, 0));
0
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224 } else {
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225 __ movflt(Address(rsp, 0), xmm0);
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226 }
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227 break;
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228 case T_DOUBLE :
304
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229 __ subptr(rsp, 2*wordSize);
0
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230 if ( UseSSE < 2 ) {
304
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231 __ fstp_d(Address(rsp, 0));
0
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232 } else {
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233 __ movdbl(Address(rsp, 0), xmm0);
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234 }
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235 break;
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236 case T_OBJECT :
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237 __ verify_oop(rax); // verify it
304
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238 __ push(rax);
0
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239 break;
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240 default : ShouldNotReachHere();
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241 }
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242 __ jmp(t); // return from result handler
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243 return entry;
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244 }
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245
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246 address CppInterpreterGenerator::generate_stack_to_stack_converter(BasicType type) {
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247 // A result is in the java expression stack of the interpreted method that has just
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248 // returned. Place this result on the java expression stack of the caller.
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249 //
304
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250 // The current interpreter activation in rsi/r13 is for the method just returning its
0
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251 // result. So we know that the result of this method is on the top of the current
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252 // execution stack (which is pre-pushed) and will be return to the top of the caller
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253 // stack. The top of the callers stack is the bottom of the locals of the current
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254 // activation.
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255 // Because of the way activation are managed by the frame manager the value of rsp is
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256 // below both the stack top of the current activation and naturally the stack top
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257 // of the calling activation. This enable this routine to leave the return address
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258 // to the frame manager on the stack and do a vanilla return.
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259 //
304
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260 // On entry: rsi/r13 - interpreter state of activation returning a (potential) result
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261 // On Return: rsi/r13 - unchanged
0
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262 // rax - new stack top for caller activation (i.e. activation in _prev_link)
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263 //
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264 // Can destroy rdx, rcx.
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265 //
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266
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267 address entry = __ pc();
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268 const Register t = InterpreterRuntime::SignatureHandlerGenerator::temp();
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269 switch (type) {
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270 case T_VOID:
304
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271 __ movptr(rax, STATE(_locals)); // pop parameters get new stack value
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272 __ addptr(rax, wordSize); // account for prepush before we return
0
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273 break;
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274 case T_FLOAT :
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275 case T_BOOLEAN:
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276 case T_CHAR :
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277 case T_BYTE :
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278 case T_SHORT :
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279 case T_INT :
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280 // 1 word result
304
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281 __ movptr(rdx, STATE(_stack));
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282 __ movptr(rax, STATE(_locals)); // address for result
0
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283 __ movl(rdx, Address(rdx, wordSize)); // get result
304
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284 __ movptr(Address(rax, 0), rdx); // and store it
0
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285 break;
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286 case T_LONG :
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287 case T_DOUBLE :
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288 // return top two words on current expression stack to caller's expression stack
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289 // The caller's expression stack is adjacent to the current frame manager's intepretState
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290 // except we allocated one extra word for this intepretState so we won't overwrite it
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291 // when we return a two word result.
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292
304
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293 __ movptr(rax, STATE(_locals)); // address for result
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294 __ movptr(rcx, STATE(_stack));
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295 __ subptr(rax, wordSize); // need addition word besides locals[0]
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296 __ movptr(rdx, Address(rcx, 2*wordSize)); // get result word (junk in 64bit)
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297 __ movptr(Address(rax, wordSize), rdx); // and store it
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298 __ movptr(rdx, Address(rcx, wordSize)); // get result word
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299 __ movptr(Address(rax, 0), rdx); // and store it
0
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300 break;
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301 case T_OBJECT :
304
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302 __ movptr(rdx, STATE(_stack));
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303 __ movptr(rax, STATE(_locals)); // address for result
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304 __ movptr(rdx, Address(rdx, wordSize)); // get result
0
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305 __ verify_oop(rdx); // verify it
304
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306 __ movptr(Address(rax, 0), rdx); // and store it
0
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307 break;
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308 default : ShouldNotReachHere();
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309 }
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310 __ ret(0);
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311 return entry;
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312 }
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313
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314 address CppInterpreterGenerator::generate_stack_to_native_abi_converter(BasicType type) {
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315 // A result is in the java expression stack of the interpreted method that has just
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316 // returned. Place this result in the native abi that the caller expects.
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317 //
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318 // Similar to generate_stack_to_stack_converter above. Called at a similar time from the
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319 // frame manager execept in this situation the caller is native code (c1/c2/call_stub)
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320 // and so rather than return result onto caller's java expression stack we return the
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321 // result in the expected location based on the native abi.
304
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322 // On entry: rsi/r13 - interpreter state of activation returning a (potential) result
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323 // On Return: rsi/r13 - unchanged
0
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324 // Other registers changed [rax/rdx/ST(0) as needed for the result returned]
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325
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326 address entry = __ pc();
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327 switch (type) {
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328 case T_VOID:
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329 break;
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330 case T_BOOLEAN:
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331 case T_CHAR :
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332 case T_BYTE :
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333 case T_SHORT :
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334 case T_INT :
304
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335 __ movptr(rdx, STATE(_stack)); // get top of stack
0
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336 __ movl(rax, Address(rdx, wordSize)); // get result word 1
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337 break;
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338 case T_LONG :
304
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339 __ movptr(rdx, STATE(_stack)); // get top of stack
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340 __ movptr(rax, Address(rdx, wordSize)); // get result low word
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341 NOT_LP64(__ movl(rdx, Address(rdx, 2*wordSize));) // get result high word
0
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342 break;
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343 case T_FLOAT :
304
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344 __ movptr(rdx, STATE(_stack)); // get top of stack
0
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345 if ( UseSSE >= 1) {
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346 __ movflt(xmm0, Address(rdx, wordSize));
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347 } else {
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348 __ fld_s(Address(rdx, wordSize)); // pushd float result
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349 }
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350 break;
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351 case T_DOUBLE :
304
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352 __ movptr(rdx, STATE(_stack)); // get top of stack
0
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353 if ( UseSSE > 1) {
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354 __ movdbl(xmm0, Address(rdx, wordSize));
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355 } else {
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356 __ fld_d(Address(rdx, wordSize)); // push double result
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357 }
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358 break;
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359 case T_OBJECT :
304
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360 __ movptr(rdx, STATE(_stack)); // get top of stack
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361 __ movptr(rax, Address(rdx, wordSize)); // get result word 1
0
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362 __ verify_oop(rax); // verify it
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363 break;
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364 default : ShouldNotReachHere();
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365 }
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366 __ ret(0);
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367 return entry;
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368 }
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369
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370 address CppInterpreter::return_entry(TosState state, int length) {
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371 // make it look good in the debugger
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372 return CAST_FROM_FN_PTR(address, RecursiveInterpreterActivation);
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373 }
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374
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375 address CppInterpreter::deopt_entry(TosState state, int length) {
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376 address ret = NULL;
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377 if (length != 0) {
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diff changeset
378 switch (state) {
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diff changeset
379 case atos: ret = deopt_frame_manager_return_atos; break;
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380 case btos: ret = deopt_frame_manager_return_btos; break;
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381 case ctos:
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382 case stos:
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383 case itos: ret = deopt_frame_manager_return_itos; break;
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384 case ltos: ret = deopt_frame_manager_return_ltos; break;
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385 case ftos: ret = deopt_frame_manager_return_ftos; break;
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386 case dtos: ret = deopt_frame_manager_return_dtos; break;
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387 case vtos: ret = deopt_frame_manager_return_vtos; break;
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388 }
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389 } else {
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390 ret = unctrap_frame_manager_entry; // re-execute the bytecode ( e.g. uncommon trap)
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391 }
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392 assert(ret != NULL, "Not initialized");
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393 return ret;
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394 }
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395
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396 // C++ Interpreter
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397 void CppInterpreterGenerator::generate_compute_interpreter_state(const Register state,
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398 const Register locals,
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399 const Register sender_sp,
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400 bool native) {
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401
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402 // On entry the "locals" argument points to locals[0] (or where it would be in case no locals in
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403 // a static method). "state" contains any previous frame manager state which we must save a link
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404 // to in the newly generated state object. On return "state" is a pointer to the newly allocated
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405 // state object. We must allocate and initialize a new interpretState object and the method
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406 // expression stack. Because the returned result (if any) of the method will be placed on the caller's
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407 // expression stack and this will overlap with locals[0] (and locals[1] if double/long) we must
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408 // be sure to leave space on the caller's stack so that this result will not overwrite values when
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409 // locals[0] and locals[1] do not exist (and in fact are return address and saved rbp). So when
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410 // we are non-native we in essence ensure that locals[0-1] exist. We play an extra trick in
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411 // non-product builds and initialize this last local with the previous interpreterState as
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412 // this makes things look real nice in the debugger.
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413
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414 // State on entry
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415 // Assumes locals == &locals[0]
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416 // Assumes state == any previous frame manager state (assuming call path from c++ interpreter)
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417 // Assumes rax = return address
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418 // rcx == senders_sp
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419 // rbx == method
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420 // Modifies rcx, rdx, rax
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421 // Returns:
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422 // state == address of new interpreterState
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423 // rsp == bottom of method's expression stack.
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424
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425 const Address const_offset (rbx, Method::const_offset());
0
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426
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427
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428 // On entry sp is the sender's sp. This includes the space for the arguments
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429 // that the sender pushed. If the sender pushed no args (a static) and the
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430 // caller returns a long then we need two words on the sender's stack which
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431 // are not present (although when we return a restore full size stack the
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432 // space will be present). If we didn't allocate two words here then when
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433 // we "push" the result of the caller's stack we would overwrite the return
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434 // address and the saved rbp. Not good. So simply allocate 2 words now
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435 // just to be safe. This is the "static long no_params() method" issue.
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436 // See Lo.java for a testcase.
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437 // We don't need this for native calls because they return result in
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438 // register and the stack is expanded in the caller before we store
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439 // the results on the stack.
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440
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441 if (!native) {
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442 #ifdef PRODUCT
304
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443 __ subptr(rsp, 2*wordSize);
0
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444 #else /* PRODUCT */
304
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445 __ push((int32_t)NULL_WORD);
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446 __ push(state); // make it look like a real argument
0
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447 #endif /* PRODUCT */
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448 }
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449
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450 // Now that we are assure of space for stack result, setup typical linkage
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451
304
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452 __ push(rax);
0
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453 __ enter();
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454
304
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455 __ mov(rax, state); // save current state
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456
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457 __ lea(rsp, Address(rsp, -(int)sizeof(BytecodeInterpreter)));
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458 __ mov(state, rsp);
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459
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460 // rsi/r13 == state/locals rax == prevstate
0
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461
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462 // initialize the "shadow" frame so that use since C++ interpreter not directly
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463 // recursive. Simpler to recurse but we can't trim expression stack as we call
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464 // new methods.
304
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465 __ movptr(STATE(_locals), locals); // state->_locals = locals()
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466 __ movptr(STATE(_self_link), state); // point to self
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467 __ movptr(STATE(_prev_link), rax); // state->_link = state on entry (NULL or previous state)
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468 __ movptr(STATE(_sender_sp), sender_sp); // state->_sender_sp = sender_sp
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469 #ifdef _LP64
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470 __ movptr(STATE(_thread), r15_thread); // state->_bcp = codes()
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471 #else
0
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472 __ get_thread(rax); // get vm's javathread*
304
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473 __ movptr(STATE(_thread), rax); // state->_bcp = codes()
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474 #endif // _LP64
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475 __ movptr(rdx, Address(rbx, Method::const_offset())); // get constantMethodOop
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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476 __ lea(rdx, Address(rdx, ConstMethod::codes_offset())); // get code base
0
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477 if (native) {
304
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478 __ movptr(STATE(_bcp), (int32_t)NULL_WORD); // state->_bcp = NULL
0
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479 } else {
304
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480 __ movptr(STATE(_bcp), rdx); // state->_bcp = codes()
0
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481 }
304
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482 __ xorptr(rdx, rdx);
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483 __ movptr(STATE(_oop_temp), rdx); // state->_oop_temp = NULL (only really needed for native)
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484 __ movptr(STATE(_mdx), rdx); // state->_mdx = NULL
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485 __ movptr(rdx, Address(rbx, Method::const_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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486 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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487 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes()));
304
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488 __ movptr(STATE(_constants), rdx); // state->_constants = constants()
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489
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490 __ movptr(STATE(_method), rbx); // state->_method = method()
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491 __ movl(STATE(_msg), (int32_t) BytecodeInterpreter::method_entry); // state->_msg = initial method entry
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492 __ movptr(STATE(_result._to_call._callee), (int32_t) NULL_WORD); // state->_result._to_call._callee_callee = NULL
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493
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494
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495 __ movptr(STATE(_monitor_base), rsp); // set monitor block bottom (grows down) this would point to entry [0]
0
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496 // entries run from -1..x where &monitor[x] ==
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497
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498 {
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499 // Must not attempt to lock method until we enter interpreter as gc won't be able to find the
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500 // initial frame. However we allocate a free monitor so we don't have to shuffle the expression stack
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501 // immediately.
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502
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503 // synchronize method
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504 const Address access_flags (rbx, Method::access_flags_offset());
0
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505 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
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506 Label not_synced;
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507
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508 __ movl(rax, access_flags);
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509 __ testl(rax, JVM_ACC_SYNCHRONIZED);
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510 __ jcc(Assembler::zero, not_synced);
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511
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512 // Allocate initial monitor and pre initialize it
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513 // get synchronization object
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514
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515 Label done;
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069ab3f976d3 7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
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516 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
0
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517 __ movl(rax, access_flags);
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518 __ testl(rax, JVM_ACC_STATIC);
304
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519 __ movptr(rax, Address(locals, 0)); // get receiver (assume this is frequent case)
0
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520 __ jcc(Assembler::zero, done);
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521 __ movptr(rax, Address(rbx, Method::const_offset()));
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522 __ movptr(rax, Address(rax, ConstMethod::constants_offset()));
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523 __ movptr(rax, Address(rax, ConstantPool::pool_holder_offset_in_bytes()));
304
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524 __ movptr(rax, Address(rax, mirror_offset));
0
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525 __ bind(done);
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526 // add space for monitor & lock
304
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527 __ subptr(rsp, entry_size); // add space for a monitor entry
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528 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); // store object
0
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529 __ bind(not_synced);
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530 }
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531
304
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532 __ movptr(STATE(_stack_base), rsp); // set expression stack base ( == &monitors[-count])
0
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533 if (native) {
304
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534 __ movptr(STATE(_stack), rsp); // set current expression stack tos
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535 __ movptr(STATE(_stack_limit), rsp);
0
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536 } else {
304
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537 __ subptr(rsp, wordSize); // pre-push stack
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538 __ movptr(STATE(_stack), rsp); // set current expression stack tos
0
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539
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540 // compute full expression stack limit
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541
7183
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents: 6740
diff changeset
542 __ movptr(rdx, Address(rbx, Method::const_offset()));
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
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543 __ load_unsigned_short(rdx, Address(rdx, ConstMethod::max_stack_offset())); // get size of expression stack in words
304
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544 __ negptr(rdx); // so we can subtract in next step
0
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545 // Allocate expression stack
10393
603ca7e51354 8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
roland
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546 __ lea(rsp, Address(rsp, rdx, Address::times_ptr, -Method::extra_stack_words()));
304
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diff changeset
547 __ movptr(STATE(_stack_limit), rsp);
0
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548 }
a61af66fc99e Initial load
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549
304
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550 #ifdef _LP64
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551 // Make sure stack is properly aligned and sized for the abi
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552 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows
605
98cb887364d3 6810672: Comment typos
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553 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI)
304
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554 #endif // _LP64
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555
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556
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557
0
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558 }
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559
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560 // Helpers for commoning out cases in the various type of method entries.
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561 //
a61af66fc99e Initial load
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562
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563 // increment invocation count & check for overflow
a61af66fc99e Initial load
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564 //
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parents:
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565 // Note: checking for negative value instead of overflow
a61af66fc99e Initial load
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parents:
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566 // so we have a 'sticky' overflow test
a61af66fc99e Initial load
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567 //
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568 // rbx,: method
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parents:
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569 // rcx: invocation counter
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570 //
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571 void InterpreterGenerator::generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue) {
10105
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
572 Label done;
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
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diff changeset
573 const Address invocation_counter(rax,
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
574 MethodCounters::invocation_counter_offset() +
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
575 InvocationCounter::counter_offset());
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
576 const Address backedge_counter (rax,
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
577 MethodCounter::backedge_counter_offset() +
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
578 InvocationCounter::counter_offset());
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
579
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
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diff changeset
580 __ get_method_counters(rbx, rax, done);
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
581
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
582 if (ProfileInterpreter) {
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
583 __ incrementl(Address(rax,
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
584 MethodCounters::interpreter_invocation_counter_offset()));
0
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parents:
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585 }
a61af66fc99e Initial load
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parents:
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586 // Update standard invocation counters
10105
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
587 __ movl(rcx, invocation_counter);
0
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parents:
diff changeset
588 __ increment(rcx, InvocationCounter::count_increment);
10105
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
589 __ movl(invocation_counter, rcx); // save invocation count
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
590
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
591 __ movl(rax, backedge_counter); // load backedge counter
0
a61af66fc99e Initial load
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parents:
diff changeset
592 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits
a61af66fc99e Initial load
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parents:
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593
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parents:
diff changeset
594 __ addl(rcx, rax); // add both counters
a61af66fc99e Initial load
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parents:
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595
a61af66fc99e Initial load
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parents:
diff changeset
596 // profile_method is non-null only for interpreted method so
a61af66fc99e Initial load
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parents:
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597 // profile_method != NULL == !native_call
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parents:
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598 // BytecodeInterpreter only calls for native so code is elided.
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parents:
diff changeset
599
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parents:
diff changeset
600 __ cmp32(rcx,
a61af66fc99e Initial load
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parents:
diff changeset
601 ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit));
a61af66fc99e Initial load
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parents:
diff changeset
602 __ jcc(Assembler::aboveEqual, *overflow);
10105
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 8873
diff changeset
603 __ bind(done);
0
a61af66fc99e Initial load
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parents:
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604 }
a61af66fc99e Initial load
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parents:
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605
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parents:
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606 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) {
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parents:
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607
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parents:
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608 // C++ interpreter on entry
304
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parents: 0
diff changeset
609 // rsi/r13 - new interpreter state pointer
0
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parents:
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610 // rbp - interpreter frame pointer
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parents:
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611 // rbx - method
a61af66fc99e Initial load
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parents:
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612
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parents:
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613 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ]
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parents:
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614 // rbx, - method
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parents:
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615 // rcx - rcvr (assuming there is one)
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parents:
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616 // top of stack return address of interpreter caller
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parents:
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617 // rsp - sender_sp
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parents:
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618
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619 // C++ interpreter only
304
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parents: 0
diff changeset
620 // rsi/r13 - previous interpreter state pointer
0
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parents:
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621
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parents:
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622 // InterpreterRuntime::frequency_counter_overflow takes one argument
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parents:
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623 // indicating if the counter overflow occurs at a backwards branch (non-NULL bcp).
a61af66fc99e Initial load
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parents:
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624 // The call returns the address of the verified entry point for the method or NULL
a61af66fc99e Initial load
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parents:
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625 // if the compilation did not complete (either went background or bailed out).
304
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parents: 0
diff changeset
626 __ movptr(rax, (int32_t)false);
0
a61af66fc99e Initial load
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parents:
diff changeset
627 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), rax);
a61af66fc99e Initial load
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parents:
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628
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parents:
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629 // for c++ interpreter can rsi really be munged?
520
52a431267315 6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents: 337
diff changeset
630 __ lea(state, Address(rbp, -(int)sizeof(BytecodeInterpreter))); // restore state
304
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parents: 0
diff changeset
631 __ movptr(rbx, Address(state, byte_offset_of(BytecodeInterpreter, _method))); // restore method
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parents: 0
diff changeset
632 __ movptr(rdi, Address(state, byte_offset_of(BytecodeInterpreter, _locals))); // get locals pointer
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parents: 0
diff changeset
633
0
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parents:
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634 __ jmp(*do_continue, relocInfo::none);
a61af66fc99e Initial load
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parents:
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635
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parents:
diff changeset
636 }
a61af66fc99e Initial load
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parents:
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637
a61af66fc99e Initial load
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parents:
diff changeset
638 void InterpreterGenerator::generate_stack_overflow_check(void) {
a61af66fc99e Initial load
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parents:
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639 // see if we've got enough room on the stack for locals plus overhead.
a61af66fc99e Initial load
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parents:
diff changeset
640 // the expression stack grows down incrementally, so the normal guard
a61af66fc99e Initial load
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parents:
diff changeset
641 // page mechanism will work for that.
a61af66fc99e Initial load
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parents:
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642 //
a61af66fc99e Initial load
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parents:
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643 // Registers live on entry:
a61af66fc99e Initial load
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parents:
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644 //
a61af66fc99e Initial load
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parents:
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645 // Asm interpreter
a61af66fc99e Initial load
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parents:
diff changeset
646 // rdx: number of additional locals this frame needs (what we must check)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
647 // rbx,: Method*
0
a61af66fc99e Initial load
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parents:
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648
a61af66fc99e Initial load
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parents:
diff changeset
649 // C++ Interpreter
304
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never
parents: 0
diff changeset
650 // rsi/r13: previous interpreter frame state object
0
a61af66fc99e Initial load
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parents:
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651 // rdi: &locals[0]
a61af66fc99e Initial load
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parents:
diff changeset
652 // rcx: # of locals
a61af66fc99e Initial load
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parents:
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653 // rdx: number of additional locals this frame needs (what we must check)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
654 // rbx: Method*
0
a61af66fc99e Initial load
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parents:
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655
a61af66fc99e Initial load
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parents:
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656 // destroyed on exit
a61af66fc99e Initial load
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parents:
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657 // rax,
a61af66fc99e Initial load
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parents:
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658
a61af66fc99e Initial load
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parents:
diff changeset
659 // NOTE: since the additional locals are also always pushed (wasn't obvious in
a61af66fc99e Initial load
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parents:
diff changeset
660 // generate_method_entry) so the guard should work for them too.
a61af66fc99e Initial load
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parents:
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661 //
a61af66fc99e Initial load
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parents:
diff changeset
662
a61af66fc99e Initial load
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parents:
diff changeset
663 // monitor entry size: see picture of stack set (generate_method_entry) and frame_i486.hpp
a61af66fc99e Initial load
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parents:
diff changeset
664 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
a61af66fc99e Initial load
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parents:
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665
a61af66fc99e Initial load
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parents:
diff changeset
666 // total overhead size: entry_size + (saved rbp, thru expr stack bottom).
a61af66fc99e Initial load
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parents:
diff changeset
667 // be sure to change this if you add/subtract anything to/from the overhead area
a61af66fc99e Initial load
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parents:
diff changeset
668 const int overhead_size = (int)sizeof(BytecodeInterpreter);
a61af66fc99e Initial load
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parents:
diff changeset
669
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parents:
diff changeset
670 const int page_size = os::vm_page_size();
a61af66fc99e Initial load
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parents:
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671
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parents:
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672 Label after_frame_check;
a61af66fc99e Initial load
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parents:
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673
a61af66fc99e Initial load
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parents:
diff changeset
674 // compute rsp as if this were going to be the last frame on
a61af66fc99e Initial load
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parents:
diff changeset
675 // the stack before the red zone
a61af66fc99e Initial load
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parents:
diff changeset
676
a61af66fc99e Initial load
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parents:
diff changeset
677 Label after_frame_check_pop;
a61af66fc99e Initial load
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parents:
diff changeset
678
a61af66fc99e Initial load
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parents:
diff changeset
679 // save rsi == caller's bytecode ptr (c++ previous interp. state)
a61af66fc99e Initial load
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parents:
diff changeset
680 // QQQ problem here?? rsi overload????
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
681 __ push(state);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
682
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never
parents: 0
diff changeset
683 const Register thread = LP64_ONLY(r15_thread) NOT_LP64(rsi);
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never
parents: 0
diff changeset
684
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
685 NOT_LP64(__ get_thread(thread));
0
a61af66fc99e Initial load
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parents:
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686
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parents:
diff changeset
687 const Address stack_base(thread, Thread::stack_base_offset());
a61af66fc99e Initial load
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parents:
diff changeset
688 const Address stack_size(thread, Thread::stack_size_offset());
a61af66fc99e Initial load
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parents:
diff changeset
689
a61af66fc99e Initial load
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parents:
diff changeset
690 // locals + overhead, in bytes
7183
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents: 6740
diff changeset
691 // Always give one monitor to allow us to start interp if sync method.
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents: 6740
diff changeset
692 // Any additional monitors need a check when moving the expression stack
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents: 6740
diff changeset
693 const int one_monitor = frame::interpreter_frame_monitor_size() * wordSize;
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents: 6740
diff changeset
694 __ movptr(rax, Address(rbx, Method::const_offset()));
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents: 6740
diff changeset
695 __ load_unsigned_short(rax, Address(rax, ConstMethod::max_stack_offset())); // get size of expression stack in words
10393
603ca7e51354 8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
roland
parents: 10105
diff changeset
696 __ lea(rax, Address(noreg, rax, Interpreter::stackElementScale(), one_monitor+Method::extra_stack_words()));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
697 __ lea(rax, Address(rax, rdx, Interpreter::stackElementScale(), overhead_size));
0
a61af66fc99e Initial load
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parents:
diff changeset
698
a61af66fc99e Initial load
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parents:
diff changeset
699 #ifdef ASSERT
a61af66fc99e Initial load
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parents:
diff changeset
700 Label stack_base_okay, stack_size_okay;
a61af66fc99e Initial load
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parents:
diff changeset
701 // verify that thread stack base is non-zero
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
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parents: 0
diff changeset
702 __ cmpptr(stack_base, (int32_t)0);
0
a61af66fc99e Initial load
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parents:
diff changeset
703 __ jcc(Assembler::notEqual, stack_base_okay);
a61af66fc99e Initial load
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parents:
diff changeset
704 __ stop("stack base is zero");
a61af66fc99e Initial load
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parents:
diff changeset
705 __ bind(stack_base_okay);
a61af66fc99e Initial load
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parents:
diff changeset
706 // verify that thread stack size is non-zero
304
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never
parents: 0
diff changeset
707 __ cmpptr(stack_size, (int32_t)0);
0
a61af66fc99e Initial load
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parents:
diff changeset
708 __ jcc(Assembler::notEqual, stack_size_okay);
a61af66fc99e Initial load
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parents:
diff changeset
709 __ stop("stack size is zero");
a61af66fc99e Initial load
duke
parents:
diff changeset
710 __ bind(stack_size_okay);
a61af66fc99e Initial load
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parents:
diff changeset
711 #endif
a61af66fc99e Initial load
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parents:
diff changeset
712
a61af66fc99e Initial load
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parents:
diff changeset
713 // Add stack base to locals and subtract stack size
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
714 __ addptr(rax, stack_base);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
715 __ subptr(rax, stack_size);
0
a61af66fc99e Initial load
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parents:
diff changeset
716
a61af66fc99e Initial load
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parents:
diff changeset
717 // We should have a magic number here for the size of the c++ interpreter frame.
a61af66fc99e Initial load
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parents:
diff changeset
718 // We can't actually tell this ahead of time. The debug version size is around 3k
a61af66fc99e Initial load
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parents:
diff changeset
719 // product is 1k and fastdebug is 4k
a61af66fc99e Initial load
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parents:
diff changeset
720 const int slop = 6 * K;
a61af66fc99e Initial load
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parents:
diff changeset
721
a61af66fc99e Initial load
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parents:
diff changeset
722 // Use the maximum number of pages we might bang.
a61af66fc99e Initial load
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parents:
diff changeset
723 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages :
a61af66fc99e Initial load
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parents:
diff changeset
724 (StackRedPages+StackYellowPages);
a61af66fc99e Initial load
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parents:
diff changeset
725 // Only need this if we are stack banging which is temporary while
a61af66fc99e Initial load
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parents:
diff changeset
726 // we're debugging.
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
727 __ addptr(rax, slop + 2*max_pages * page_size);
0
a61af66fc99e Initial load
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parents:
diff changeset
728
a61af66fc99e Initial load
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parents:
diff changeset
729 // check against the current stack bottom
304
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never
parents: 0
diff changeset
730 __ cmpptr(rsp, rax);
0
a61af66fc99e Initial load
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parents:
diff changeset
731 __ jcc(Assembler::above, after_frame_check_pop);
a61af66fc99e Initial load
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parents:
diff changeset
732
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
733 __ pop(state); // get c++ prev state.
0
a61af66fc99e Initial load
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parents:
diff changeset
734
a61af66fc99e Initial load
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parents:
diff changeset
735 // throw exception return address becomes throwing pc
a61af66fc99e Initial load
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parents:
diff changeset
736 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError));
a61af66fc99e Initial load
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parents:
diff changeset
737
a61af66fc99e Initial load
duke
parents:
diff changeset
738 // all done with frame size check
a61af66fc99e Initial load
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parents:
diff changeset
739 __ bind(after_frame_check_pop);
304
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never
parents: 0
diff changeset
740 __ pop(state);
0
a61af66fc99e Initial load
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parents:
diff changeset
741
a61af66fc99e Initial load
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parents:
diff changeset
742 __ bind(after_frame_check);
a61af66fc99e Initial load
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parents:
diff changeset
743 }
a61af66fc99e Initial load
duke
parents:
diff changeset
744
a61af66fc99e Initial load
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parents:
diff changeset
745 // Find preallocated monitor and lock method (C++ interpreter)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
746 // rbx - Method*
0
a61af66fc99e Initial load
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parents:
diff changeset
747 //
a61af66fc99e Initial load
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parents:
diff changeset
748 void InterpreterGenerator::lock_method(void) {
304
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parents: 0
diff changeset
749 // assumes state == rsi/r13 == pointer to current interpreterState
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
750 // minimally destroys rax, rdx|c_rarg1, rdi
0
a61af66fc99e Initial load
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parents:
diff changeset
751 //
a61af66fc99e Initial load
duke
parents:
diff changeset
752 // synchronize method
a61af66fc99e Initial load
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parents:
diff changeset
753 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
754 const Address access_flags (rbx, Method::access_flags_offset());
0
a61af66fc99e Initial load
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parents:
diff changeset
755
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
756 const Register monitor = NOT_LP64(rdx) LP64_ONLY(c_rarg1);
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never
parents: 0
diff changeset
757
0
a61af66fc99e Initial load
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parents:
diff changeset
758 // find initial monitor i.e. monitors[-1]
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
759 __ movptr(monitor, STATE(_monitor_base)); // get monitor bottom limit
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parents: 0
diff changeset
760 __ subptr(monitor, entry_size); // point to initial monitor
0
a61af66fc99e Initial load
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parents:
diff changeset
761
a61af66fc99e Initial load
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parents:
diff changeset
762 #ifdef ASSERT
a61af66fc99e Initial load
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parents:
diff changeset
763 { Label L;
a61af66fc99e Initial load
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parents:
diff changeset
764 __ movl(rax, access_flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
765 __ testl(rax, JVM_ACC_SYNCHRONIZED);
a61af66fc99e Initial load
duke
parents:
diff changeset
766 __ jcc(Assembler::notZero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
767 __ stop("method doesn't need synchronization");
a61af66fc99e Initial load
duke
parents:
diff changeset
768 __ bind(L);
a61af66fc99e Initial load
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parents:
diff changeset
769 }
a61af66fc99e Initial load
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parents:
diff changeset
770 #endif // ASSERT
a61af66fc99e Initial load
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parents:
diff changeset
771 // get synchronization object
a61af66fc99e Initial load
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parents:
diff changeset
772 { Label done;
4762
069ab3f976d3 7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents: 3369
diff changeset
773 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
774 __ movl(rax, access_flags);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
775 __ movptr(rdi, STATE(_locals)); // prepare to get receiver (assume common case)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
776 __ testl(rax, JVM_ACC_STATIC);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
777 __ movptr(rax, Address(rdi, 0)); // get receiver (assume this is frequent case)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
778 __ jcc(Assembler::zero, done);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
779 __ movptr(rax, Address(rbx, Method::const_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
780 __ movptr(rax, Address(rax, ConstMethod::constants_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
781 __ movptr(rax, Address(rax, ConstantPool::pool_holder_offset_in_bytes()));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
782 __ movptr(rax, Address(rax, mirror_offset));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
783 __ bind(done);
a61af66fc99e Initial load
duke
parents:
diff changeset
784 }
a61af66fc99e Initial load
duke
parents:
diff changeset
785 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
786 { Label L;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
787 __ cmpptr(rax, Address(monitor, BasicObjectLock::obj_offset_in_bytes())); // correct object?
0
a61af66fc99e Initial load
duke
parents:
diff changeset
788 __ jcc(Assembler::equal, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
789 __ stop("wrong synchronization lobject");
a61af66fc99e Initial load
duke
parents:
diff changeset
790 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
791 }
a61af66fc99e Initial load
duke
parents:
diff changeset
792 #endif // ASSERT
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
793 // can destroy rax, rdx|c_rarg1, rcx, and (via call_VM) rdi!
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
794 __ lock_object(monitor);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
795 }
a61af66fc99e Initial load
duke
parents:
diff changeset
796
a61af66fc99e Initial load
duke
parents:
diff changeset
797 // Call an accessor method (assuming it is resolved, otherwise drop into vanilla (slow path) entry
a61af66fc99e Initial load
duke
parents:
diff changeset
798
a61af66fc99e Initial load
duke
parents:
diff changeset
799 address InterpreterGenerator::generate_accessor_entry(void) {
a61af66fc99e Initial load
duke
parents:
diff changeset
800
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
801 // rbx: Method*
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
802
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
803 // rsi/r13: senderSP must preserved for slow path, set SP to it on fast path
0
a61af66fc99e Initial load
duke
parents:
diff changeset
804
a61af66fc99e Initial load
duke
parents:
diff changeset
805 Label xreturn_path;
a61af66fc99e Initial load
duke
parents:
diff changeset
806
a61af66fc99e Initial load
duke
parents:
diff changeset
807 // do fastpath for resolved accessor methods
a61af66fc99e Initial load
duke
parents:
diff changeset
808 if (UseFastAccessorMethods) {
a61af66fc99e Initial load
duke
parents:
diff changeset
809
a61af66fc99e Initial load
duke
parents:
diff changeset
810 address entry_point = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
811
a61af66fc99e Initial load
duke
parents:
diff changeset
812 Label slow_path;
a61af66fc99e Initial load
duke
parents:
diff changeset
813 // If we need a safepoint check, generate full interpreter entry.
a61af66fc99e Initial load
duke
parents:
diff changeset
814 ExternalAddress state(SafepointSynchronize::address_of_state());
a61af66fc99e Initial load
duke
parents:
diff changeset
815 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
a61af66fc99e Initial load
duke
parents:
diff changeset
816 SafepointSynchronize::_not_synchronized);
a61af66fc99e Initial load
duke
parents:
diff changeset
817
a61af66fc99e Initial load
duke
parents:
diff changeset
818 __ jcc(Assembler::notEqual, slow_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
819 // ASM/C++ Interpreter
a61af66fc99e Initial load
duke
parents:
diff changeset
820 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; parameter size = 1
a61af66fc99e Initial load
duke
parents:
diff changeset
821 // Note: We can only use this code if the getfield has been resolved
a61af66fc99e Initial load
duke
parents:
diff changeset
822 // and if we don't have a null-pointer exception => check for
a61af66fc99e Initial load
duke
parents:
diff changeset
823 // these conditions first and use slow path if necessary.
a61af66fc99e Initial load
duke
parents:
diff changeset
824 // rbx,: method
a61af66fc99e Initial load
duke
parents:
diff changeset
825 // rcx: receiver
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
826 __ movptr(rax, Address(rsp, wordSize));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
827
a61af66fc99e Initial load
duke
parents:
diff changeset
828 // check if local 0 != NULL and read field
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
829 __ testptr(rax, rax);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
830 __ jcc(Assembler::zero, slow_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
831
a61af66fc99e Initial load
duke
parents:
diff changeset
832 // read first instruction word and extract bytecode @ 1 and index @ 2
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
833 __ movptr(rdx, Address(rbx, Method::const_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
834 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
835 __ movl(rdx, Address(rdx, ConstMethod::codes_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
836 // Shift codes right to get the index on the right.
a61af66fc99e Initial load
duke
parents:
diff changeset
837 // The bytecode fetched looks like <index><0xb4><0x2a>
a61af66fc99e Initial load
duke
parents:
diff changeset
838 __ shrl(rdx, 2*BitsPerByte);
a61af66fc99e Initial load
duke
parents:
diff changeset
839 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size())));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
840 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
841
a61af66fc99e Initial load
duke
parents:
diff changeset
842 // rax,: local 0
a61af66fc99e Initial load
duke
parents:
diff changeset
843 // rbx,: method
a61af66fc99e Initial load
duke
parents:
diff changeset
844 // rcx: receiver - do not destroy since it is needed for slow path!
a61af66fc99e Initial load
duke
parents:
diff changeset
845 // rcx: scratch
a61af66fc99e Initial load
duke
parents:
diff changeset
846 // rdx: constant pool cache index
a61af66fc99e Initial load
duke
parents:
diff changeset
847 // rdi: constant pool cache
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
848 // rsi/r13: sender sp
0
a61af66fc99e Initial load
duke
parents:
diff changeset
849
a61af66fc99e Initial load
duke
parents:
diff changeset
850 // check if getfield has been resolved and read constant pool cache entry
a61af66fc99e Initial load
duke
parents:
diff changeset
851 // check the validity of the cache entry by testing whether _indices field
a61af66fc99e Initial load
duke
parents:
diff changeset
852 // contains Bytecode::_getfield in b1 byte.
a61af66fc99e Initial load
duke
parents:
diff changeset
853 assert(in_words(ConstantPoolCacheEntry::size()) == 4, "adjust shift below");
a61af66fc99e Initial load
duke
parents:
diff changeset
854 __ movl(rcx,
a61af66fc99e Initial load
duke
parents:
diff changeset
855 Address(rdi,
a61af66fc99e Initial load
duke
parents:
diff changeset
856 rdx,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
857 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
858 __ shrl(rcx, 2*BitsPerByte);
a61af66fc99e Initial load
duke
parents:
diff changeset
859 __ andl(rcx, 0xFF);
a61af66fc99e Initial load
duke
parents:
diff changeset
860 __ cmpl(rcx, Bytecodes::_getfield);
a61af66fc99e Initial load
duke
parents:
diff changeset
861 __ jcc(Assembler::notEqual, slow_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
862
a61af66fc99e Initial load
duke
parents:
diff changeset
863 // Note: constant pool entry is not valid before bytecode is resolved
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
864 __ movptr(rcx,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
865 Address(rdi,
a61af66fc99e Initial load
duke
parents:
diff changeset
866 rdx,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
867 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
868 __ movl(rdx,
a61af66fc99e Initial load
duke
parents:
diff changeset
869 Address(rdi,
a61af66fc99e Initial load
duke
parents:
diff changeset
870 rdx,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
871 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
872
a61af66fc99e Initial load
duke
parents:
diff changeset
873 Label notByte, notShort, notChar;
a61af66fc99e Initial load
duke
parents:
diff changeset
874 const Address field_address (rax, rcx, Address::times_1);
a61af66fc99e Initial load
duke
parents:
diff changeset
875
a61af66fc99e Initial load
duke
parents:
diff changeset
876 // Need to differentiate between igetfield, agetfield, bgetfield etc.
a61af66fc99e Initial load
duke
parents:
diff changeset
877 // because they are different sizes.
a61af66fc99e Initial load
duke
parents:
diff changeset
878 // Use the type from the constant pool cache
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6123
diff changeset
879 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6123
diff changeset
880 // Make sure we don't need to mask rdx after the above shift
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6123
diff changeset
881 ConstantPoolCacheEntry::verify_tos_state_shift();
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
882 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
883 Label notObj;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
884 __ cmpl(rdx, atos);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
885 __ jcc(Assembler::notEqual, notObj);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
886 // atos
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
887 __ movptr(rax, field_address);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
888 __ jmp(xreturn_path);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
889
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
890 __ bind(notObj);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
891 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
892 __ cmpl(rdx, btos);
a61af66fc99e Initial load
duke
parents:
diff changeset
893 __ jcc(Assembler::notEqual, notByte);
a61af66fc99e Initial load
duke
parents:
diff changeset
894 __ load_signed_byte(rax, field_address);
a61af66fc99e Initial load
duke
parents:
diff changeset
895 __ jmp(xreturn_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
896
a61af66fc99e Initial load
duke
parents:
diff changeset
897 __ bind(notByte);
a61af66fc99e Initial load
duke
parents:
diff changeset
898 __ cmpl(rdx, stos);
a61af66fc99e Initial load
duke
parents:
diff changeset
899 __ jcc(Assembler::notEqual, notShort);
622
56aae7be60d4 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 605
diff changeset
900 __ load_signed_short(rax, field_address);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
901 __ jmp(xreturn_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
902
a61af66fc99e Initial load
duke
parents:
diff changeset
903 __ bind(notShort);
a61af66fc99e Initial load
duke
parents:
diff changeset
904 __ cmpl(rdx, ctos);
a61af66fc99e Initial load
duke
parents:
diff changeset
905 __ jcc(Assembler::notEqual, notChar);
622
56aae7be60d4 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 605
diff changeset
906 __ load_unsigned_short(rax, field_address);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
907 __ jmp(xreturn_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
908
a61af66fc99e Initial load
duke
parents:
diff changeset
909 __ bind(notChar);
a61af66fc99e Initial load
duke
parents:
diff changeset
910 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
911 Label okay;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
912 #ifndef _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
913 __ cmpl(rdx, atos);
a61af66fc99e Initial load
duke
parents:
diff changeset
914 __ jcc(Assembler::equal, okay);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
915 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
916 __ cmpl(rdx, itos);
a61af66fc99e Initial load
duke
parents:
diff changeset
917 __ jcc(Assembler::equal, okay);
a61af66fc99e Initial load
duke
parents:
diff changeset
918 __ stop("what type is this?");
a61af66fc99e Initial load
duke
parents:
diff changeset
919 __ bind(okay);
a61af66fc99e Initial load
duke
parents:
diff changeset
920 #endif // ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
921 // All the rest are a 32 bit wordsize
a61af66fc99e Initial load
duke
parents:
diff changeset
922 __ movl(rax, field_address);
a61af66fc99e Initial load
duke
parents:
diff changeset
923
a61af66fc99e Initial load
duke
parents:
diff changeset
924 __ bind(xreturn_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
925
a61af66fc99e Initial load
duke
parents:
diff changeset
926 // _ireturn/_areturn
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
927 __ pop(rdi); // get return address
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
928 __ mov(rsp, sender_sp_on_entry); // set sp to sender sp
0
a61af66fc99e Initial load
duke
parents:
diff changeset
929 __ jmp(rdi);
a61af66fc99e Initial load
duke
parents:
diff changeset
930
a61af66fc99e Initial load
duke
parents:
diff changeset
931 // generate a vanilla interpreter entry as the slow path
a61af66fc99e Initial load
duke
parents:
diff changeset
932 __ bind(slow_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
933 // We will enter c++ interpreter looking like it was
a61af66fc99e Initial load
duke
parents:
diff changeset
934 // called by the call_stub this will cause it to return
a61af66fc99e Initial load
duke
parents:
diff changeset
935 // a tosca result to the invoker which might have been
a61af66fc99e Initial load
duke
parents:
diff changeset
936 // the c++ interpreter itself.
a61af66fc99e Initial load
duke
parents:
diff changeset
937
a61af66fc99e Initial load
duke
parents:
diff changeset
938 __ jmp(fast_accessor_slow_entry_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
939 return entry_point;
a61af66fc99e Initial load
duke
parents:
diff changeset
940
a61af66fc99e Initial load
duke
parents:
diff changeset
941 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
942 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
943 }
a61af66fc99e Initial load
duke
parents:
diff changeset
944
a61af66fc99e Initial load
duke
parents:
diff changeset
945 }
a61af66fc99e Initial load
duke
parents:
diff changeset
946
3249
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
947 address InterpreterGenerator::generate_Reference_get_entry(void) {
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7402
diff changeset
948 #if INCLUDE_ALL_GCS
3249
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
949 if (UseG1GC) {
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
950 // We need to generate have a routine that generates code to:
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
951 // * load the value in the referent field
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
952 // * passes that value to the pre-barrier.
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
953 //
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
954 // In the case of G1 this will record the value of the
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
955 // referent in an SATB buffer if marking is active.
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
956 // This will cause concurrent marking to mark the referent
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
957 // field as live.
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
958 Unimplemented();
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
959 }
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7402
diff changeset
960 #endif // INCLUDE_ALL_GCS
3249
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
961
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
962 // If G1 is not enabled then attempt to go through the accessor entry point
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
963 // Reference.get is an accessor
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
964 return generate_accessor_entry();
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
965 }
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
966
0
a61af66fc99e Initial load
duke
parents:
diff changeset
967 //
a61af66fc99e Initial load
duke
parents:
diff changeset
968 // C++ Interpreter stub for calling a native method.
a61af66fc99e Initial load
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parents:
diff changeset
969 // This sets up a somewhat different looking stack for calling the native method
a61af66fc99e Initial load
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parents:
diff changeset
970 // than the typical interpreter frame setup but still has the pointer to
a61af66fc99e Initial load
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parents:
diff changeset
971 // an interpreter state.
a61af66fc99e Initial load
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parents:
diff changeset
972 //
a61af66fc99e Initial load
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parents:
diff changeset
973
a61af66fc99e Initial load
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parents:
diff changeset
974 address InterpreterGenerator::generate_native_entry(bool synchronized) {
a61af66fc99e Initial load
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parents:
diff changeset
975 // determine code generation flags
a61af66fc99e Initial load
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parents:
diff changeset
976 bool inc_counter = UseCompiler || CountCompiledCalls;
a61af66fc99e Initial load
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parents:
diff changeset
977
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
978 // rbx: Method*
0
a61af66fc99e Initial load
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parents:
diff changeset
979 // rcx: receiver (unused)
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
980 // rsi/r13: previous interpreter state (if called from C++ interpreter) must preserve
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never
parents: 0
diff changeset
981 // in any case. If called via c1/c2/call_stub rsi/r13 is junk (to use) but harmless
0
a61af66fc99e Initial load
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parents:
diff changeset
982 // to save/restore.
a61af66fc99e Initial load
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parents:
diff changeset
983 address entry_point = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
984
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
985 const Address constMethod (rbx, Method::const_offset());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
986 const Address access_flags (rbx, Method::access_flags_offset());
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
987 const Address size_of_parameters(rcx, ConstMethod::size_of_parameters_offset());
0
a61af66fc99e Initial load
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parents:
diff changeset
988
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
989 // rsi/r13 == state/locals rdi == prevstate
0
a61af66fc99e Initial load
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parents:
diff changeset
990 const Register locals = rdi;
a61af66fc99e Initial load
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parents:
diff changeset
991
a61af66fc99e Initial load
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parents:
diff changeset
992 // get parameter size (always needed)
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
993 __ movptr(rcx, constMethod);
622
56aae7be60d4 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 605
diff changeset
994 __ load_unsigned_short(rcx, size_of_parameters);
0
a61af66fc99e Initial load
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parents:
diff changeset
995
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
996 // rbx: Method*
0
a61af66fc99e Initial load
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parents:
diff changeset
997 // rcx: size of parameters
304
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never
parents: 0
diff changeset
998 __ pop(rax); // get return address
0
a61af66fc99e Initial load
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parents:
diff changeset
999 // for natives the size of locals is zero
a61af66fc99e Initial load
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parents:
diff changeset
1000
a61af66fc99e Initial load
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parents:
diff changeset
1001 // compute beginning of parameters /locals
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1002
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1003 __ lea(locals, Address(rsp, rcx, Address::times_ptr, -wordSize));
0
a61af66fc99e Initial load
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parents:
diff changeset
1004
a61af66fc99e Initial load
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parents:
diff changeset
1005 // initialize fixed part of activation frame
a61af66fc99e Initial load
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parents:
diff changeset
1006
a61af66fc99e Initial load
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parents:
diff changeset
1007 // Assumes rax = return address
a61af66fc99e Initial load
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parents:
diff changeset
1008
a61af66fc99e Initial load
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parents:
diff changeset
1009 // allocate and initialize new interpreterState and method expression stack
a61af66fc99e Initial load
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parents:
diff changeset
1010 // IN(locals) -> locals
a61af66fc99e Initial load
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parents:
diff changeset
1011 // IN(state) -> previous frame manager state (NULL from stub/c1/c2)
a61af66fc99e Initial load
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parents:
diff changeset
1012 // destroys rax, rcx, rdx
a61af66fc99e Initial load
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parents:
diff changeset
1013 // OUT (state) -> new interpreterState
a61af66fc99e Initial load
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parents:
diff changeset
1014 // OUT(rsp) -> bottom of methods expression stack
a61af66fc99e Initial load
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parents:
diff changeset
1015
a61af66fc99e Initial load
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parents:
diff changeset
1016 // save sender_sp
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1017 __ mov(rcx, sender_sp_on_entry);
0
a61af66fc99e Initial load
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parents:
diff changeset
1018 // start with NULL previous state
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1019 __ movptr(state, (int32_t)NULL_WORD);
0
a61af66fc99e Initial load
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parents:
diff changeset
1020 generate_compute_interpreter_state(state, locals, rcx, true);
a61af66fc99e Initial load
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parents:
diff changeset
1021
a61af66fc99e Initial load
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parents:
diff changeset
1022 #ifdef ASSERT
a61af66fc99e Initial load
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parents:
diff changeset
1023 { Label L;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1024 __ movptr(rax, STATE(_stack_base));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1025 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1026 // duplicate the alignment rsp got after setting stack_base
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1027 __ subptr(rax, frame::arg_reg_save_area_bytes); // windows
605
98cb887364d3 6810672: Comment typos
twisti
parents: 520
diff changeset
1028 __ andptr(rax, -16); // must be 16 byte boundary (see amd64 ABI)
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1029 #endif // _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1030 __ cmpptr(rax, rsp);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1031 __ jcc(Assembler::equal, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1032 __ stop("broken stack frame setup in interpreter");
a61af66fc99e Initial load
duke
parents:
diff changeset
1033 __ bind(L);
a61af66fc99e Initial load
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parents:
diff changeset
1034 }
a61af66fc99e Initial load
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parents:
diff changeset
1035 #endif
a61af66fc99e Initial load
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parents:
diff changeset
1036
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1037 const Register unlock_thread = LP64_ONLY(r15_thread) NOT_LP64(rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1038 NOT_LP64(__ movptr(unlock_thread, STATE(_thread));) // get thread
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1039 // Since at this point in the method invocation the exception handler
a61af66fc99e Initial load
duke
parents:
diff changeset
1040 // would try to exit the monitor of synchronized methods which hasn't
a61af66fc99e Initial load
duke
parents:
diff changeset
1041 // been entered yet, we set the thread local variable
a61af66fc99e Initial load
duke
parents:
diff changeset
1042 // _do_not_unlock_if_synchronized to true. The remove_activation will
a61af66fc99e Initial load
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parents:
diff changeset
1043 // check this flag.
a61af66fc99e Initial load
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parents:
diff changeset
1044
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1045 const Address do_not_unlock_if_synchronized(unlock_thread,
0
a61af66fc99e Initial load
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parents:
diff changeset
1046 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset()));
a61af66fc99e Initial load
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parents:
diff changeset
1047 __ movbool(do_not_unlock_if_synchronized, true);
a61af66fc99e Initial load
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parents:
diff changeset
1048
a61af66fc99e Initial load
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parents:
diff changeset
1049 // make sure method is native & not abstract
a61af66fc99e Initial load
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parents:
diff changeset
1050 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1051 __ movl(rax, access_flags);
a61af66fc99e Initial load
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parents:
diff changeset
1052 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1053 Label L;
a61af66fc99e Initial load
duke
parents:
diff changeset
1054 __ testl(rax, JVM_ACC_NATIVE);
a61af66fc99e Initial load
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parents:
diff changeset
1055 __ jcc(Assembler::notZero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1056 __ stop("tried to execute non-native method as native");
a61af66fc99e Initial load
duke
parents:
diff changeset
1057 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1058 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1059 { Label L;
a61af66fc99e Initial load
duke
parents:
diff changeset
1060 __ testl(rax, JVM_ACC_ABSTRACT);
a61af66fc99e Initial load
duke
parents:
diff changeset
1061 __ jcc(Assembler::zero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1062 __ stop("tried to execute abstract method in interpreter");
a61af66fc99e Initial load
duke
parents:
diff changeset
1063 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1064 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1065 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1066
a61af66fc99e Initial load
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parents:
diff changeset
1067
a61af66fc99e Initial load
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parents:
diff changeset
1068 // increment invocation count & check for overflow
a61af66fc99e Initial load
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parents:
diff changeset
1069 Label invocation_counter_overflow;
a61af66fc99e Initial load
duke
parents:
diff changeset
1070 if (inc_counter) {
a61af66fc99e Initial load
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parents:
diff changeset
1071 generate_counter_incr(&invocation_counter_overflow, NULL, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1072 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1073
a61af66fc99e Initial load
duke
parents:
diff changeset
1074 Label continue_after_compile;
a61af66fc99e Initial load
duke
parents:
diff changeset
1075
a61af66fc99e Initial load
duke
parents:
diff changeset
1076 __ bind(continue_after_compile);
a61af66fc99e Initial load
duke
parents:
diff changeset
1077
a61af66fc99e Initial load
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parents:
diff changeset
1078 bang_stack_shadow_pages(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1079
a61af66fc99e Initial load
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parents:
diff changeset
1080 // reset the _do_not_unlock_if_synchronized flag
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1081 NOT_LP64(__ movl(rax, STATE(_thread));) // get thread
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1082 __ movbool(do_not_unlock_if_synchronized, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
1083
a61af66fc99e Initial load
duke
parents:
diff changeset
1084
a61af66fc99e Initial load
duke
parents:
diff changeset
1085 // check for synchronized native methods
a61af66fc99e Initial load
duke
parents:
diff changeset
1086 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1087 // Note: This must happen *after* invocation counter check, since
a61af66fc99e Initial load
duke
parents:
diff changeset
1088 // when overflow happens, the method should not be locked.
a61af66fc99e Initial load
duke
parents:
diff changeset
1089 if (synchronized) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1090 // potentially kills rax, rcx, rdx, rdi
a61af66fc99e Initial load
duke
parents:
diff changeset
1091 lock_method();
a61af66fc99e Initial load
duke
parents:
diff changeset
1092 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1093 // no synchronization necessary
a61af66fc99e Initial load
duke
parents:
diff changeset
1094 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1095 { Label L;
a61af66fc99e Initial load
duke
parents:
diff changeset
1096 __ movl(rax, access_flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
1097 __ testl(rax, JVM_ACC_SYNCHRONIZED);
a61af66fc99e Initial load
duke
parents:
diff changeset
1098 __ jcc(Assembler::zero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1099 __ stop("method needs synchronization");
a61af66fc99e Initial load
duke
parents:
diff changeset
1100 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1101 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1102 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1103 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1104
a61af66fc99e Initial load
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parents:
diff changeset
1105 // start execution
a61af66fc99e Initial load
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parents:
diff changeset
1106
a61af66fc99e Initial load
duke
parents:
diff changeset
1107 // jvmti support
a61af66fc99e Initial load
duke
parents:
diff changeset
1108 __ notify_method_entry();
a61af66fc99e Initial load
duke
parents:
diff changeset
1109
a61af66fc99e Initial load
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parents:
diff changeset
1110 // work registers
a61af66fc99e Initial load
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parents:
diff changeset
1111 const Register method = rbx;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1112 const Register thread = LP64_ONLY(r15_thread) NOT_LP64(rdi);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1113 const Register t = InterpreterRuntime::SignatureHandlerGenerator::temp(); // rcx|rscratch1
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1114 const Address constMethod (method, Method::const_offset());
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1115 const Address size_of_parameters(t, ConstMethod::size_of_parameters_offset());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1116
a61af66fc99e Initial load
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parents:
diff changeset
1117 // allocate space for parameters
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1118 __ movptr(method, STATE(_method));
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
1119 __ verify_method_ptr(method);
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1120 __ movptr(t, constMethod);
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1121 __ load_unsigned_short(t, size_of_parameters);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1122 __ shll(t, 2);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1123 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1124 __ subptr(rsp, t);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1125 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows
605
98cb887364d3 6810672: Comment typos
twisti
parents: 520
diff changeset
1126 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI)
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1127 #else
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1128 __ addptr(t, 2*wordSize); // allocate two more slots for JNIEnv and possible mirror
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1129 __ subptr(rsp, t);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1130 __ andptr(rsp, -(StackAlignmentInBytes)); // gcc needs 16 byte aligned stacks to do XMM intrinsics
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1131 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1132
a61af66fc99e Initial load
duke
parents:
diff changeset
1133 // get signature handler
a61af66fc99e Initial load
duke
parents:
diff changeset
1134 Label pending_exception_present;
a61af66fc99e Initial load
duke
parents:
diff changeset
1135
a61af66fc99e Initial load
duke
parents:
diff changeset
1136 { Label L;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1137 __ movptr(t, Address(method, Method::signature_handler_offset()));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1138 __ testptr(t, t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1139 __ jcc(Assembler::notZero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1140 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method, false);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1141 __ movptr(method, STATE(_method));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1142 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1143 __ jcc(Assembler::notEqual, pending_exception_present);
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
1144 __ verify_method_ptr(method);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1145 __ movptr(t, Address(method, Method::signature_handler_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1146 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1147 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1148 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1149 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1150 Label L;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1151 __ push(t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1152 __ get_thread(t); // get vm's javathread*
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1153 __ cmpptr(t, STATE(_thread));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1154 __ jcc(Assembler::equal, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1155 __ int3();
a61af66fc99e Initial load
duke
parents:
diff changeset
1156 __ bind(L);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1157 __ pop(t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1158 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1159 #endif //
a61af66fc99e Initial load
duke
parents:
diff changeset
1160
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1161 const Register from_ptr = InterpreterRuntime::SignatureHandlerGenerator::from();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1162 // call signature handler
a61af66fc99e Initial load
duke
parents:
diff changeset
1163 assert(InterpreterRuntime::SignatureHandlerGenerator::to () == rsp, "adjust this code");
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1164
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1165 // The generated handlers do not touch RBX (the method oop).
a61af66fc99e Initial load
duke
parents:
diff changeset
1166 // However, large signatures cannot be cached and are generated
a61af66fc99e Initial load
duke
parents:
diff changeset
1167 // each time here. The slow-path generator will blow RBX
a61af66fc99e Initial load
duke
parents:
diff changeset
1168 // sometime, so we must reload it after the call.
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1169 __ movptr(from_ptr, STATE(_locals)); // get the from pointer
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1170 __ call(t);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1171 __ movptr(method, STATE(_method));
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
1172 __ verify_method_ptr(method);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1173
a61af66fc99e Initial load
duke
parents:
diff changeset
1174 // result handler is in rax
a61af66fc99e Initial load
duke
parents:
diff changeset
1175 // set result handler
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1176 __ movptr(STATE(_result_handler), rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1177
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1178
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1179 // get native function entry point
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1180 { Label L;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1181 __ movptr(rax, Address(method, Method::native_function_offset()));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1182 __ testptr(rax, rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1183 __ jcc(Assembler::notZero, L);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1184 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1185 __ movptr(method, STATE(_method));
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
1186 __ verify_method_ptr(method);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1187 __ movptr(rax, Address(method, Method::native_function_offset()));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1188 __ bind(L);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1189 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1190
a61af66fc99e Initial load
duke
parents:
diff changeset
1191 // pass mirror handle if static call
a61af66fc99e Initial load
duke
parents:
diff changeset
1192 { Label L;
4762
069ab3f976d3 7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents: 3369
diff changeset
1193 const int mirror_offset = in_bytes(Klass::java_mirror_offset());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1194 __ movl(t, Address(method, Method::access_flags_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1195 __ testl(t, JVM_ACC_STATIC);
a61af66fc99e Initial load
duke
parents:
diff changeset
1196 __ jcc(Assembler::zero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1197 // get mirror
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1198 __ movptr(t, Address(method, Method:: const_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1199 __ movptr(t, Address(t, ConstMethod::constants_offset()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1200 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes()));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1201 __ movptr(t, Address(t, mirror_offset));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1202 // copy mirror into activation object
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1203 __ movptr(STATE(_oop_temp), t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1204 // pass handle to mirror
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1205 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1206 __ lea(c_rarg1, STATE(_oop_temp));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1207 #else
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1208 __ lea(t, STATE(_oop_temp));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1209 __ movptr(Address(rsp, wordSize), t);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1210 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1211 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1212 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1213 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1214 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1215 Label L;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1216 __ push(t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1217 __ get_thread(t); // get vm's javathread*
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1218 __ cmpptr(t, STATE(_thread));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1219 __ jcc(Assembler::equal, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1220 __ int3();
a61af66fc99e Initial load
duke
parents:
diff changeset
1221 __ bind(L);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1222 __ pop(t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1223 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1224 #endif //
a61af66fc99e Initial load
duke
parents:
diff changeset
1225
a61af66fc99e Initial load
duke
parents:
diff changeset
1226 // pass JNIEnv
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1227 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1228 __ lea(c_rarg0, Address(thread, JavaThread::jni_environment_offset()));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1229 #else
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1230 __ movptr(thread, STATE(_thread)); // get thread
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1231 __ lea(t, Address(thread, JavaThread::jni_environment_offset()));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1232
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1233 __ movptr(Address(rsp, 0), t);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1234 #endif // _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1235
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1236 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1237 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1238 Label L;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1239 __ push(t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1240 __ get_thread(t); // get vm's javathread*
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1241 __ cmpptr(t, STATE(_thread));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1242 __ jcc(Assembler::equal, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1243 __ int3();
a61af66fc99e Initial load
duke
parents:
diff changeset
1244 __ bind(L);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1245 __ pop(t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1246 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1247 #endif //
a61af66fc99e Initial load
duke
parents:
diff changeset
1248
a61af66fc99e Initial load
duke
parents:
diff changeset
1249 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1250 { Label L;
a61af66fc99e Initial load
duke
parents:
diff changeset
1251 __ movl(t, Address(thread, JavaThread::thread_state_offset()));
a61af66fc99e Initial load
duke
parents:
diff changeset
1252 __ cmpl(t, _thread_in_Java);
a61af66fc99e Initial load
duke
parents:
diff changeset
1253 __ jcc(Assembler::equal, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1254 __ stop("Wrong thread state in native stub");
a61af66fc99e Initial load
duke
parents:
diff changeset
1255 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1256 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1257 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1258
a61af66fc99e Initial load
duke
parents:
diff changeset
1259 // Change state to native (we save the return address in the thread, since it might not
a61af66fc99e Initial load
duke
parents:
diff changeset
1260 // be pushed on the stack when we do a a stack traversal). It is enough that the pc()
a61af66fc99e Initial load
duke
parents:
diff changeset
1261 // points into the right code segment. It does not have to be the correct return pc.
a61af66fc99e Initial load
duke
parents:
diff changeset
1262
a61af66fc99e Initial load
duke
parents:
diff changeset
1263 __ set_last_Java_frame(thread, noreg, rbp, __ pc());
a61af66fc99e Initial load
duke
parents:
diff changeset
1264
a61af66fc99e Initial load
duke
parents:
diff changeset
1265 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native);
a61af66fc99e Initial load
duke
parents:
diff changeset
1266
a61af66fc99e Initial load
duke
parents:
diff changeset
1267 __ call(rax);
a61af66fc99e Initial load
duke
parents:
diff changeset
1268
a61af66fc99e Initial load
duke
parents:
diff changeset
1269 // result potentially in rdx:rax or ST0
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1270 __ movptr(method, STATE(_method));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1271 NOT_LP64(__ movptr(thread, STATE(_thread));) // get thread
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1272
a61af66fc99e Initial load
duke
parents:
diff changeset
1273 // The potential result is in ST(0) & rdx:rax
a61af66fc99e Initial load
duke
parents:
diff changeset
1274 // With C++ interpreter we leave any possible result in ST(0) until we are in result handler and then
a61af66fc99e Initial load
duke
parents:
diff changeset
1275 // we do the appropriate stuff for returning the result. rdx:rax must always be saved because just about
a61af66fc99e Initial load
duke
parents:
diff changeset
1276 // anything we do here will destroy it, st(0) is only saved if we re-enter the vm where it would
a61af66fc99e Initial load
duke
parents:
diff changeset
1277 // be destroyed.
a61af66fc99e Initial load
duke
parents:
diff changeset
1278 // It is safe to do these pushes because state is _thread_in_native and return address will be found
a61af66fc99e Initial load
duke
parents:
diff changeset
1279 // via _last_native_pc and not via _last_jave_sp
a61af66fc99e Initial load
duke
parents:
diff changeset
1280
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1281 // Must save the value of ST(0)/xmm0 since it could be destroyed before we get to result handler
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1282 { Label Lpush, Lskip;
a61af66fc99e Initial load
duke
parents:
diff changeset
1283 ExternalAddress float_handler(AbstractInterpreter::result_handler(T_FLOAT));
a61af66fc99e Initial load
duke
parents:
diff changeset
1284 ExternalAddress double_handler(AbstractInterpreter::result_handler(T_DOUBLE));
a61af66fc99e Initial load
duke
parents:
diff changeset
1285 __ cmpptr(STATE(_result_handler), float_handler.addr());
a61af66fc99e Initial load
duke
parents:
diff changeset
1286 __ jcc(Assembler::equal, Lpush);
a61af66fc99e Initial load
duke
parents:
diff changeset
1287 __ cmpptr(STATE(_result_handler), double_handler.addr());
a61af66fc99e Initial load
duke
parents:
diff changeset
1288 __ jcc(Assembler::notEqual, Lskip);
a61af66fc99e Initial load
duke
parents:
diff changeset
1289 __ bind(Lpush);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1290 __ subptr(rsp, 2*wordSize);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1291 if ( UseSSE < 2 ) {
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1292 __ fstp_d(Address(rsp, 0));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1293 } else {
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1294 __ movdbl(Address(rsp, 0), xmm0);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1295 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1296 __ bind(Lskip);
a61af66fc99e Initial load
duke
parents:
diff changeset
1297 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1298
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1299 // save rax:rdx for potential use by result handler.
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1300 __ push(rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1301 #ifndef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1302 __ push(rdx);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1303 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1304
8873
e961c11b85fe 8011102: Clear AVX registers after return from JNI call
kvn
parents: 8727
diff changeset
1305 // Verify or restore cpu control state after JNI call
e961c11b85fe 8011102: Clear AVX registers after return from JNI call
kvn
parents: 8727
diff changeset
1306 __ restore_cpu_control_state_after_jni();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1307
a61af66fc99e Initial load
duke
parents:
diff changeset
1308 // change thread state
a61af66fc99e Initial load
duke
parents:
diff changeset
1309 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native_trans);
a61af66fc99e Initial load
duke
parents:
diff changeset
1310 if(os::is_MP()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1311 // Write serialization page so VM thread can do a pseudo remote membar.
a61af66fc99e Initial load
duke
parents:
diff changeset
1312 // We use the current thread pointer to calculate a thread specific
a61af66fc99e Initial load
duke
parents:
diff changeset
1313 // offset to write to within the page. This minimizes bus traffic
a61af66fc99e Initial load
duke
parents:
diff changeset
1314 // due to cache line collision.
a61af66fc99e Initial load
duke
parents:
diff changeset
1315 __ serialize_memory(thread, rcx);
a61af66fc99e Initial load
duke
parents:
diff changeset
1316 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1317
a61af66fc99e Initial load
duke
parents:
diff changeset
1318 // check for safepoint operation in progress and/or pending suspend requests
a61af66fc99e Initial load
duke
parents:
diff changeset
1319 { Label Continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
1320
a61af66fc99e Initial load
duke
parents:
diff changeset
1321 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
a61af66fc99e Initial load
duke
parents:
diff changeset
1322 SafepointSynchronize::_not_synchronized);
a61af66fc99e Initial load
duke
parents:
diff changeset
1323
a61af66fc99e Initial load
duke
parents:
diff changeset
1324 // threads running native code and they are expected to self-suspend
a61af66fc99e Initial load
duke
parents:
diff changeset
1325 // when leaving the _thread_in_native state. We need to check for
a61af66fc99e Initial load
duke
parents:
diff changeset
1326 // pending suspend requests here.
a61af66fc99e Initial load
duke
parents:
diff changeset
1327 Label L;
a61af66fc99e Initial load
duke
parents:
diff changeset
1328 __ jcc(Assembler::notEqual, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1329 __ cmpl(Address(thread, JavaThread::suspend_flags_offset()), 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1330 __ jcc(Assembler::equal, Continue);
a61af66fc99e Initial load
duke
parents:
diff changeset
1331 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1332
a61af66fc99e Initial load
duke
parents:
diff changeset
1333 // Don't use call_VM as it will see a possible pending exception and forward it
a61af66fc99e Initial load
duke
parents:
diff changeset
1334 // and never return here preventing us from clearing _last_native_pc down below.
a61af66fc99e Initial load
duke
parents:
diff changeset
1335 // Also can't use call_VM_leaf either as it will check to see if rsi & rdi are
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1336 // preserved and correspond to the bcp/locals pointers.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1337 //
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1338
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1339 ((MacroAssembler*)_masm)->call_VM_leaf(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans),
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1340 thread);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1341 __ increment(rsp, wordSize);
a61af66fc99e Initial load
duke
parents:
diff changeset
1342
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1343 __ movptr(method, STATE(_method));
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
1344 __ verify_method_ptr(method);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1345 __ movptr(thread, STATE(_thread)); // get thread
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1346
a61af66fc99e Initial load
duke
parents:
diff changeset
1347 __ bind(Continue);
a61af66fc99e Initial load
duke
parents:
diff changeset
1348 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1349
a61af66fc99e Initial load
duke
parents:
diff changeset
1350 // change thread state
a61af66fc99e Initial load
duke
parents:
diff changeset
1351 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_Java);
a61af66fc99e Initial load
duke
parents:
diff changeset
1352
a61af66fc99e Initial load
duke
parents:
diff changeset
1353 __ reset_last_Java_frame(thread, true, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1354
a61af66fc99e Initial load
duke
parents:
diff changeset
1355 // reset handle block
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1356 __ movptr(t, Address(thread, JavaThread::active_handles_offset()));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1357 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1358
a61af66fc99e Initial load
duke
parents:
diff changeset
1359 // If result was an oop then unbox and save it in the frame
a61af66fc99e Initial load
duke
parents:
diff changeset
1360 { Label L;
a61af66fc99e Initial load
duke
parents:
diff changeset
1361 Label no_oop, store_result;
a61af66fc99e Initial load
duke
parents:
diff changeset
1362 ExternalAddress oop_handler(AbstractInterpreter::result_handler(T_OBJECT));
a61af66fc99e Initial load
duke
parents:
diff changeset
1363 __ cmpptr(STATE(_result_handler), oop_handler.addr());
a61af66fc99e Initial load
duke
parents:
diff changeset
1364 __ jcc(Assembler::notEqual, no_oop);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1365 #ifndef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1366 __ pop(rdx);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1367 #endif // _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1368 __ pop(rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1369 __ testptr(rax, rax);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1370 __ jcc(Assembler::zero, store_result);
a61af66fc99e Initial load
duke
parents:
diff changeset
1371 // unbox
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1372 __ movptr(rax, Address(rax, 0));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1373 __ bind(store_result);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1374 __ movptr(STATE(_oop_temp), rax);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1375 // keep stack depth as expected by pushing oop which will eventually be discarded
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1376 __ push(rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1377 #ifndef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1378 __ push(rdx);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1379 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1380 __ bind(no_oop);
a61af66fc99e Initial load
duke
parents:
diff changeset
1381 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1382
a61af66fc99e Initial load
duke
parents:
diff changeset
1383 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1384 Label no_reguard;
a61af66fc99e Initial load
duke
parents:
diff changeset
1385 __ cmpl(Address(thread, JavaThread::stack_guard_state_offset()), JavaThread::stack_guard_yellow_disabled);
a61af66fc99e Initial load
duke
parents:
diff changeset
1386 __ jcc(Assembler::notEqual, no_reguard);
a61af66fc99e Initial load
duke
parents:
diff changeset
1387
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1388 __ pusha();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1389 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages)));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1390 __ popa();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1391
a61af66fc99e Initial load
duke
parents:
diff changeset
1392 __ bind(no_reguard);
a61af66fc99e Initial load
duke
parents:
diff changeset
1393 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1394
a61af66fc99e Initial load
duke
parents:
diff changeset
1395
a61af66fc99e Initial load
duke
parents:
diff changeset
1396 // QQQ Seems like for native methods we simply return and the caller will see the pending
a61af66fc99e Initial load
duke
parents:
diff changeset
1397 // exception and do the right thing. Certainly the interpreter will, don't know about
a61af66fc99e Initial load
duke
parents:
diff changeset
1398 // compiled methods.
a61af66fc99e Initial load
duke
parents:
diff changeset
1399 // Seems that the answer to above is no this is wrong. The old code would see the exception
a61af66fc99e Initial load
duke
parents:
diff changeset
1400 // and forward it before doing the unlocking and notifying jvmdi that method has exited.
a61af66fc99e Initial load
duke
parents:
diff changeset
1401 // This seems wrong need to investigate the spec.
a61af66fc99e Initial load
duke
parents:
diff changeset
1402
a61af66fc99e Initial load
duke
parents:
diff changeset
1403 // handle exceptions (exception handling will handle unlocking!)
a61af66fc99e Initial load
duke
parents:
diff changeset
1404 { Label L;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1405 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1406 __ jcc(Assembler::zero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1407 __ bind(pending_exception_present);
a61af66fc99e Initial load
duke
parents:
diff changeset
1408
a61af66fc99e Initial load
duke
parents:
diff changeset
1409 // There are potential results on the stack (rax/rdx, ST(0)) we ignore these and simply
a61af66fc99e Initial load
duke
parents:
diff changeset
1410 // return and let caller deal with exception. This skips the unlocking here which
a61af66fc99e Initial load
duke
parents:
diff changeset
1411 // seems wrong but seems to be what asm interpreter did. Can't find this in the spec.
a61af66fc99e Initial load
duke
parents:
diff changeset
1412 // Note: must preverve method in rbx
a61af66fc99e Initial load
duke
parents:
diff changeset
1413 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1414
a61af66fc99e Initial load
duke
parents:
diff changeset
1415 // remove activation
a61af66fc99e Initial load
duke
parents:
diff changeset
1416
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1417 __ movptr(t, STATE(_sender_sp));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1418 __ leave(); // remove frame anchor
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1419 __ pop(rdi); // get return address
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1420 __ movptr(state, STATE(_prev_link)); // get previous state for return
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1421 __ mov(rsp, t); // set sp to sender sp
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1422 __ push(rdi); // push throwing pc
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1423 // The skips unlocking!! This seems to be what asm interpreter does but seems
a61af66fc99e Initial load
duke
parents:
diff changeset
1424 // very wrong. Not clear if this violates the spec.
a61af66fc99e Initial load
duke
parents:
diff changeset
1425 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry()));
a61af66fc99e Initial load
duke
parents:
diff changeset
1426 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1427 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1428
a61af66fc99e Initial load
duke
parents:
diff changeset
1429 // do unlocking if necessary
a61af66fc99e Initial load
duke
parents:
diff changeset
1430 { Label L;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1431 __ movl(t, Address(method, Method::access_flags_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1432 __ testl(t, JVM_ACC_SYNCHRONIZED);
a61af66fc99e Initial load
duke
parents:
diff changeset
1433 __ jcc(Assembler::zero, L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1434 // the code below should be shared with interpreter macro assembler implementation
a61af66fc99e Initial load
duke
parents:
diff changeset
1435 { Label unlock;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1436 const Register monitor = NOT_LP64(rdx) LP64_ONLY(c_rarg1);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1437 // BasicObjectLock will be first in list, since this is a synchronized method. However, need
a61af66fc99e Initial load
duke
parents:
diff changeset
1438 // to check that the object has not been unlocked by an explicit monitorexit bytecode.
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1439 __ movptr(monitor, STATE(_monitor_base));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1440 __ subptr(monitor, frame::interpreter_frame_monitor_size() * wordSize); // address of initial monitor
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1441
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1442 __ movptr(t, Address(monitor, BasicObjectLock::obj_offset_in_bytes()));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1443 __ testptr(t, t);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1444 __ jcc(Assembler::notZero, unlock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1445
a61af66fc99e Initial load
duke
parents:
diff changeset
1446 // Entry already unlocked, need to throw exception
a61af66fc99e Initial load
duke
parents:
diff changeset
1447 __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception));
a61af66fc99e Initial load
duke
parents:
diff changeset
1448 __ should_not_reach_here();
a61af66fc99e Initial load
duke
parents:
diff changeset
1449
a61af66fc99e Initial load
duke
parents:
diff changeset
1450 __ bind(unlock);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1451 __ unlock_object(monitor);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1452 // unlock can blow rbx so restore it for path that needs it below
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1453 __ movptr(method, STATE(_method));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1454 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1455 __ bind(L);
a61af66fc99e Initial load
duke
parents:
diff changeset
1456 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1457
a61af66fc99e Initial load
duke
parents:
diff changeset
1458 // jvmti support
a61af66fc99e Initial load
duke
parents:
diff changeset
1459 // Note: This must happen _after_ handling/throwing any exceptions since
a61af66fc99e Initial load
duke
parents:
diff changeset
1460 // the exception handler code notifies the runtime of method exits
a61af66fc99e Initial load
duke
parents:
diff changeset
1461 // too. If this happens before, method entry/exit notifications are
a61af66fc99e Initial load
duke
parents:
diff changeset
1462 // not properly paired (was bug - gri 11/22/99).
a61af66fc99e Initial load
duke
parents:
diff changeset
1463 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI);
a61af66fc99e Initial load
duke
parents:
diff changeset
1464
a61af66fc99e Initial load
duke
parents:
diff changeset
1465 // restore potential result in rdx:rax, call result handler to restore potential result in ST0 & handle result
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1466 #ifndef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1467 __ pop(rdx);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1468 #endif // _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1469 __ pop(rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1470 __ movptr(t, STATE(_result_handler)); // get result handler
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1471 __ call(t); // call result handler to convert to tosca form
a61af66fc99e Initial load
duke
parents:
diff changeset
1472
a61af66fc99e Initial load
duke
parents:
diff changeset
1473 // remove activation
a61af66fc99e Initial load
duke
parents:
diff changeset
1474
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1475 __ movptr(t, STATE(_sender_sp));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1476
a61af66fc99e Initial load
duke
parents:
diff changeset
1477 __ leave(); // remove frame anchor
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1478 __ pop(rdi); // get return address
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1479 __ movptr(state, STATE(_prev_link)); // get previous state for return (if c++ interpreter was caller)
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1480 __ mov(rsp, t); // set sp to sender sp
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1481 __ jmp(rdi);
a61af66fc99e Initial load
duke
parents:
diff changeset
1482
a61af66fc99e Initial load
duke
parents:
diff changeset
1483 // invocation counter overflow
a61af66fc99e Initial load
duke
parents:
diff changeset
1484 if (inc_counter) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1485 // Handle overflow of counter and compile method
a61af66fc99e Initial load
duke
parents:
diff changeset
1486 __ bind(invocation_counter_overflow);
a61af66fc99e Initial load
duke
parents:
diff changeset
1487 generate_counter_overflow(&continue_after_compile);
a61af66fc99e Initial load
duke
parents:
diff changeset
1488 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1489
a61af66fc99e Initial load
duke
parents:
diff changeset
1490 return entry_point;
a61af66fc99e Initial load
duke
parents:
diff changeset
1491 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1492
a61af66fc99e Initial load
duke
parents:
diff changeset
1493 // Generate entries that will put a result type index into rcx
a61af66fc99e Initial load
duke
parents:
diff changeset
1494 void CppInterpreterGenerator::generate_deopt_handling() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1495
a61af66fc99e Initial load
duke
parents:
diff changeset
1496 Label return_from_deopt_common;
a61af66fc99e Initial load
duke
parents:
diff changeset
1497
a61af66fc99e Initial load
duke
parents:
diff changeset
1498 // Generate entries that will put a result type index into rcx
a61af66fc99e Initial load
duke
parents:
diff changeset
1499 // deopt needs to jump to here to enter the interpreter (return a result)
a61af66fc99e Initial load
duke
parents:
diff changeset
1500 deopt_frame_manager_return_atos = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1501
a61af66fc99e Initial load
duke
parents:
diff changeset
1502 // rax is live here
a61af66fc99e Initial load
duke
parents:
diff changeset
1503 __ movl(rcx, AbstractInterpreter::BasicType_as_index(T_OBJECT)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1504 __ jmp(return_from_deopt_common);
a61af66fc99e Initial load
duke
parents:
diff changeset
1505
a61af66fc99e Initial load
duke
parents:
diff changeset
1506
a61af66fc99e Initial load
duke
parents:
diff changeset
1507 // deopt needs to jump to here to enter the interpreter (return a result)
a61af66fc99e Initial load
duke
parents:
diff changeset
1508 deopt_frame_manager_return_btos = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1509
a61af66fc99e Initial load
duke
parents:
diff changeset
1510 // rax is live here
a61af66fc99e Initial load
duke
parents:
diff changeset
1511 __ movl(rcx, AbstractInterpreter::BasicType_as_index(T_BOOLEAN)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1512 __ jmp(return_from_deopt_common);
a61af66fc99e Initial load
duke
parents:
diff changeset
1513
a61af66fc99e Initial load
duke
parents:
diff changeset
1514 // deopt needs to jump to here to enter the interpreter (return a result)
a61af66fc99e Initial load
duke
parents:
diff changeset
1515 deopt_frame_manager_return_itos = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1516
a61af66fc99e Initial load
duke
parents:
diff changeset
1517 // rax is live here
a61af66fc99e Initial load
duke
parents:
diff changeset
1518 __ movl(rcx, AbstractInterpreter::BasicType_as_index(T_INT)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1519 __ jmp(return_from_deopt_common);
a61af66fc99e Initial load
duke
parents:
diff changeset
1520
a61af66fc99e Initial load
duke
parents:
diff changeset
1521 // deopt needs to jump to here to enter the interpreter (return a result)
a61af66fc99e Initial load
duke
parents:
diff changeset
1522
a61af66fc99e Initial load
duke
parents:
diff changeset
1523 deopt_frame_manager_return_ltos = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1524 // rax,rdx are live here
a61af66fc99e Initial load
duke
parents:
diff changeset
1525 __ movl(rcx, AbstractInterpreter::BasicType_as_index(T_LONG)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1526 __ jmp(return_from_deopt_common);
a61af66fc99e Initial load
duke
parents:
diff changeset
1527
a61af66fc99e Initial load
duke
parents:
diff changeset
1528 // deopt needs to jump to here to enter the interpreter (return a result)
a61af66fc99e Initial load
duke
parents:
diff changeset
1529
a61af66fc99e Initial load
duke
parents:
diff changeset
1530 deopt_frame_manager_return_ftos = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1531 // st(0) is live here
a61af66fc99e Initial load
duke
parents:
diff changeset
1532 __ movl(rcx, AbstractInterpreter::BasicType_as_index(T_FLOAT)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1533 __ jmp(return_from_deopt_common);
a61af66fc99e Initial load
duke
parents:
diff changeset
1534
a61af66fc99e Initial load
duke
parents:
diff changeset
1535 // deopt needs to jump to here to enter the interpreter (return a result)
a61af66fc99e Initial load
duke
parents:
diff changeset
1536 deopt_frame_manager_return_dtos = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1537
a61af66fc99e Initial load
duke
parents:
diff changeset
1538 // st(0) is live here
a61af66fc99e Initial load
duke
parents:
diff changeset
1539 __ movl(rcx, AbstractInterpreter::BasicType_as_index(T_DOUBLE)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1540 __ jmp(return_from_deopt_common);
a61af66fc99e Initial load
duke
parents:
diff changeset
1541
a61af66fc99e Initial load
duke
parents:
diff changeset
1542 // deopt needs to jump to here to enter the interpreter (return a result)
a61af66fc99e Initial load
duke
parents:
diff changeset
1543 deopt_frame_manager_return_vtos = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1544
a61af66fc99e Initial load
duke
parents:
diff changeset
1545 __ movl(rcx, AbstractInterpreter::BasicType_as_index(T_VOID));
a61af66fc99e Initial load
duke
parents:
diff changeset
1546
a61af66fc99e Initial load
duke
parents:
diff changeset
1547 // Deopt return common
a61af66fc99e Initial load
duke
parents:
diff changeset
1548 // an index is present in rcx that lets us move any possible result being
a61af66fc99e Initial load
duke
parents:
diff changeset
1549 // return to the interpreter's stack
a61af66fc99e Initial load
duke
parents:
diff changeset
1550 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1551 // Because we have a full sized interpreter frame on the youngest
a61af66fc99e Initial load
duke
parents:
diff changeset
1552 // activation the stack is pushed too deep to share the tosca to
a61af66fc99e Initial load
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parents:
diff changeset
1553 // stack converters directly. We shrink the stack to the desired
a61af66fc99e Initial load
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parents:
diff changeset
1554 // amount and then push result and then re-extend the stack.
a61af66fc99e Initial load
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parents:
diff changeset
1555 // We could have the code in size_activation layout a short
a61af66fc99e Initial load
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parents:
diff changeset
1556 // frame for the top activation but that would look different
a61af66fc99e Initial load
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parents:
diff changeset
1557 // than say sparc (which needs a full size activation because
a61af66fc99e Initial load
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parents:
diff changeset
1558 // the windows are in the way. Really it could be short? QQQ
a61af66fc99e Initial load
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parents:
diff changeset
1559 //
a61af66fc99e Initial load
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parents:
diff changeset
1560 __ bind(return_from_deopt_common);
a61af66fc99e Initial load
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parents:
diff changeset
1561
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1562 __ lea(state, Address(rbp, -(int)sizeof(BytecodeInterpreter)));
0
a61af66fc99e Initial load
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parents:
diff changeset
1563
a61af66fc99e Initial load
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parents:
diff changeset
1564 // setup rsp so we can push the "result" as needed.
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1565 __ movptr(rsp, STATE(_stack)); // trim stack (is prepushed)
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1566 __ addptr(rsp, wordSize); // undo prepush
0
a61af66fc99e Initial load
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parents:
diff changeset
1567
a61af66fc99e Initial load
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parents:
diff changeset
1568 ExternalAddress tosca_to_stack((address)CppInterpreter::_tosca_to_stack);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1569 // Address index(noreg, rcx, Address::times_ptr);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1570 __ movptr(rcx, ArrayAddress(tosca_to_stack, Address(noreg, rcx, Address::times_ptr)));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1571 // __ movl(rcx, Address(noreg, rcx, Address::times_ptr, int(AbstractInterpreter::_tosca_to_stack)));
0
a61af66fc99e Initial load
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parents:
diff changeset
1572 __ call(rcx); // call result converter
a61af66fc99e Initial load
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parents:
diff changeset
1573
a61af66fc99e Initial load
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parents:
diff changeset
1574 __ movl(STATE(_msg), (int)BytecodeInterpreter::deopt_resume);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1575 __ lea(rsp, Address(rsp, -wordSize)); // prepush stack (result if any already present)
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1576 __ movptr(STATE(_stack), rsp); // inform interpreter of new stack depth (parameters removed,
0
a61af66fc99e Initial load
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parents:
diff changeset
1577 // result if any on stack already )
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1578 __ movptr(rsp, STATE(_stack_limit)); // restore expression stack to full depth
0
a61af66fc99e Initial load
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parents:
diff changeset
1579 }
a61af66fc99e Initial load
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parents:
diff changeset
1580
a61af66fc99e Initial load
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parents:
diff changeset
1581 // Generate the code to handle a more_monitors message from the c++ interpreter
a61af66fc99e Initial load
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parents:
diff changeset
1582 void CppInterpreterGenerator::generate_more_monitors() {
a61af66fc99e Initial load
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parents:
diff changeset
1583
a61af66fc99e Initial load
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parents:
diff changeset
1584
a61af66fc99e Initial load
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parents:
diff changeset
1585 Label entry, loop;
a61af66fc99e Initial load
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parents:
diff changeset
1586 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1587 // 1. compute new pointers // rsp: old expression stack top
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1588 __ movptr(rdx, STATE(_stack_base)); // rdx: old expression stack bottom
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1589 __ subptr(rsp, entry_size); // move expression stack top limit
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1590 __ subptr(STATE(_stack), entry_size); // update interpreter stack top
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1591 __ subptr(STATE(_stack_limit), entry_size); // inform interpreter
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1592 __ subptr(rdx, entry_size); // move expression stack bottom
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1593 __ movptr(STATE(_stack_base), rdx); // inform interpreter
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1594 __ movptr(rcx, STATE(_stack)); // set start value for copy loop
0
a61af66fc99e Initial load
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parents:
diff changeset
1595 __ jmp(entry);
a61af66fc99e Initial load
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parents:
diff changeset
1596 // 2. move expression stack contents
a61af66fc99e Initial load
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parents:
diff changeset
1597 __ bind(loop);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1598 __ movptr(rbx, Address(rcx, entry_size)); // load expression stack word from old location
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1599 __ movptr(Address(rcx, 0), rbx); // and store it at new location
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1600 __ addptr(rcx, wordSize); // advance to next word
0
a61af66fc99e Initial load
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parents:
diff changeset
1601 __ bind(entry);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1602 __ cmpptr(rcx, rdx); // check if bottom reached
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1603 __ jcc(Assembler::notEqual, loop); // if not at bottom then copy next word
0
a61af66fc99e Initial load
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parents:
diff changeset
1604 // now zero the slot so we can find it.
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1605 __ movptr(Address(rdx, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD);
0
a61af66fc99e Initial load
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parents:
diff changeset
1606 __ movl(STATE(_msg), (int)BytecodeInterpreter::got_monitors);
a61af66fc99e Initial load
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parents:
diff changeset
1607 }
a61af66fc99e Initial load
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parents:
diff changeset
1608
a61af66fc99e Initial load
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parents:
diff changeset
1609
a61af66fc99e Initial load
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parents:
diff changeset
1610 // Initial entry to C++ interpreter from the call_stub.
a61af66fc99e Initial load
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parents:
diff changeset
1611 // This entry point is called the frame manager since it handles the generation
a61af66fc99e Initial load
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parents:
diff changeset
1612 // of interpreter activation frames via requests directly from the vm (via call_stub)
a61af66fc99e Initial load
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parents:
diff changeset
1613 // and via requests from the interpreter. The requests from the call_stub happen
a61af66fc99e Initial load
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parents:
diff changeset
1614 // directly thru the entry point. Requests from the interpreter happen via returning
a61af66fc99e Initial load
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parents:
diff changeset
1615 // from the interpreter and examining the message the interpreter has returned to
a61af66fc99e Initial load
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parents:
diff changeset
1616 // the frame manager. The frame manager can take the following requests:
a61af66fc99e Initial load
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parents:
diff changeset
1617
a61af66fc99e Initial load
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parents:
diff changeset
1618 // NO_REQUEST - error, should never happen.
a61af66fc99e Initial load
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parents:
diff changeset
1619 // MORE_MONITORS - need a new monitor. Shuffle the expression stack on down and
a61af66fc99e Initial load
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parents:
diff changeset
1620 // allocate a new monitor.
a61af66fc99e Initial load
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parents:
diff changeset
1621 // CALL_METHOD - setup a new activation to call a new method. Very similar to what
a61af66fc99e Initial load
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parents:
diff changeset
1622 // happens during entry during the entry via the call stub.
a61af66fc99e Initial load
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parents:
diff changeset
1623 // RETURN_FROM_METHOD - remove an activation. Return to interpreter or call stub.
a61af66fc99e Initial load
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parents:
diff changeset
1624 //
a61af66fc99e Initial load
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parents:
diff changeset
1625 // Arguments:
a61af66fc99e Initial load
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parents:
diff changeset
1626 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1627 // rbx: Method*
0
a61af66fc99e Initial load
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parents:
diff changeset
1628 // rcx: receiver - unused (retrieved from stack as needed)
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1629 // rsi/r13: previous frame manager state (NULL from the call_stub/c1/c2)
0
a61af66fc99e Initial load
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parents:
diff changeset
1630 //
a61af66fc99e Initial load
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parents:
diff changeset
1631 //
a61af66fc99e Initial load
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parents:
diff changeset
1632 // Stack layout at entry
a61af66fc99e Initial load
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parents:
diff changeset
1633 //
a61af66fc99e Initial load
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parents:
diff changeset
1634 // [ return address ] <--- rsp
a61af66fc99e Initial load
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parents:
diff changeset
1635 // [ parameter n ]
a61af66fc99e Initial load
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parents:
diff changeset
1636 // ...
a61af66fc99e Initial load
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parents:
diff changeset
1637 // [ parameter 1 ]
a61af66fc99e Initial load
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parents:
diff changeset
1638 // [ expression stack ]
a61af66fc99e Initial load
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parents:
diff changeset
1639 //
a61af66fc99e Initial load
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parents:
diff changeset
1640 //
a61af66fc99e Initial load
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parents:
diff changeset
1641 // We are free to blow any registers we like because the call_stub which brought us here
a61af66fc99e Initial load
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parents:
diff changeset
1642 // initially has preserved the callee save registers already.
a61af66fc99e Initial load
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parents:
diff changeset
1643 //
a61af66fc99e Initial load
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parents:
diff changeset
1644 //
a61af66fc99e Initial load
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parents:
diff changeset
1645
a61af66fc99e Initial load
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parents:
diff changeset
1646 static address interpreter_frame_manager = NULL;
a61af66fc99e Initial load
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parents:
diff changeset
1647
a61af66fc99e Initial load
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parents:
diff changeset
1648 address InterpreterGenerator::generate_normal_entry(bool synchronized) {
a61af66fc99e Initial load
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parents:
diff changeset
1649
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1650 // rbx: Method*
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1651 // rsi/r13: sender sp
0
a61af66fc99e Initial load
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parents:
diff changeset
1652
a61af66fc99e Initial load
duke
parents:
diff changeset
1653 // Because we redispatch "recursive" interpreter entries thru this same entry point
a61af66fc99e Initial load
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parents:
diff changeset
1654 // the "input" register usage is a little strange and not what you expect coming
a61af66fc99e Initial load
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parents:
diff changeset
1655 // from the call_stub. From the call stub rsi/rdi (current/previous) interpreter
a61af66fc99e Initial load
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parents:
diff changeset
1656 // state are NULL but on "recursive" dispatches they are what you'd expect.
a61af66fc99e Initial load
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parents:
diff changeset
1657 // rsi: current interpreter state (C++ interpreter) must preserve (null from call_stub/c1/c2)
a61af66fc99e Initial load
duke
parents:
diff changeset
1658
a61af66fc99e Initial load
duke
parents:
diff changeset
1659
a61af66fc99e Initial load
duke
parents:
diff changeset
1660 // A single frame manager is plenty as we don't specialize for synchronized. We could and
a61af66fc99e Initial load
duke
parents:
diff changeset
1661 // the code is pretty much ready. Would need to change the test below and for good measure
a61af66fc99e Initial load
duke
parents:
diff changeset
1662 // modify generate_interpreter_state to only do the (pre) sync stuff stuff for synchronized
a61af66fc99e Initial load
duke
parents:
diff changeset
1663 // routines. Not clear this is worth it yet.
a61af66fc99e Initial load
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parents:
diff changeset
1664
a61af66fc99e Initial load
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parents:
diff changeset
1665 if (interpreter_frame_manager) return interpreter_frame_manager;
a61af66fc99e Initial load
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parents:
diff changeset
1666
a61af66fc99e Initial load
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parents:
diff changeset
1667 address entry_point = __ pc();
a61af66fc99e Initial load
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parents:
diff changeset
1668
a61af66fc99e Initial load
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parents:
diff changeset
1669 // Fast accessor methods share this entry point.
a61af66fc99e Initial load
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parents:
diff changeset
1670 // This works because frame manager is in the same codelet
a61af66fc99e Initial load
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parents:
diff changeset
1671 if (UseFastAccessorMethods && !synchronized) __ bind(fast_accessor_slow_entry_path);
a61af66fc99e Initial load
duke
parents:
diff changeset
1672
a61af66fc99e Initial load
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parents:
diff changeset
1673 Label dispatch_entry_2;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1674 __ movptr(rcx, sender_sp_on_entry);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1675 __ movptr(state, (int32_t)NULL_WORD); // no current activation
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1676
a61af66fc99e Initial load
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parents:
diff changeset
1677 __ jmp(dispatch_entry_2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1678
a61af66fc99e Initial load
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parents:
diff changeset
1679 const Register locals = rdi;
a61af66fc99e Initial load
duke
parents:
diff changeset
1680
a61af66fc99e Initial load
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parents:
diff changeset
1681 Label re_dispatch;
a61af66fc99e Initial load
duke
parents:
diff changeset
1682
a61af66fc99e Initial load
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parents:
diff changeset
1683 __ bind(re_dispatch);
a61af66fc99e Initial load
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parents:
diff changeset
1684
a61af66fc99e Initial load
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parents:
diff changeset
1685 // save sender sp (doesn't include return address
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1686 __ lea(rcx, Address(rsp, wordSize));
0
a61af66fc99e Initial load
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parents:
diff changeset
1687
a61af66fc99e Initial load
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parents:
diff changeset
1688 __ bind(dispatch_entry_2);
a61af66fc99e Initial load
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parents:
diff changeset
1689
a61af66fc99e Initial load
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parents:
diff changeset
1690 // save sender sp
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1691 __ push(rcx);
0
a61af66fc99e Initial load
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parents:
diff changeset
1692
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1693 const Address constMethod (rbx, Method::const_offset());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1694 const Address access_flags (rbx, Method::access_flags_offset());
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1695 const Address size_of_parameters(rdx, ConstMethod::size_of_parameters_offset());
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1696 const Address size_of_locals (rdx, ConstMethod::size_of_locals_offset());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1697
a61af66fc99e Initial load
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parents:
diff changeset
1698 // const Address monitor_block_top (rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
a61af66fc99e Initial load
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parents:
diff changeset
1699 // const Address monitor_block_bot (rbp, frame::interpreter_frame_initial_sp_offset * wordSize);
a61af66fc99e Initial load
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parents:
diff changeset
1700 // const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock));
a61af66fc99e Initial load
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parents:
diff changeset
1701
a61af66fc99e Initial load
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parents:
diff changeset
1702 // get parameter size (always needed)
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1703 __ movptr(rdx, constMethod);
622
56aae7be60d4 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 605
diff changeset
1704 __ load_unsigned_short(rcx, size_of_parameters);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1705
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1706 // rbx: Method*
0
a61af66fc99e Initial load
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parents:
diff changeset
1707 // rcx: size of parameters
622
56aae7be60d4 6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents: 605
diff changeset
1708 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words
0
a61af66fc99e Initial load
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parents:
diff changeset
1709
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1710 __ subptr(rdx, rcx); // rdx = no. of additional locals
0
a61af66fc99e Initial load
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parents:
diff changeset
1711
a61af66fc99e Initial load
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parents:
diff changeset
1712 // see if we've got enough room on the stack for locals plus overhead.
a61af66fc99e Initial load
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parents:
diff changeset
1713 generate_stack_overflow_check(); // C++
a61af66fc99e Initial load
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parents:
diff changeset
1714
a61af66fc99e Initial load
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parents:
diff changeset
1715 // c++ interpreter does not use stack banging or any implicit exceptions
a61af66fc99e Initial load
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parents:
diff changeset
1716 // leave for now to verify that check is proper.
a61af66fc99e Initial load
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parents:
diff changeset
1717 bang_stack_shadow_pages(false);
a61af66fc99e Initial load
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parents:
diff changeset
1718
a61af66fc99e Initial load
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parents:
diff changeset
1719
a61af66fc99e Initial load
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parents:
diff changeset
1720
a61af66fc99e Initial load
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parents:
diff changeset
1721 // compute beginning of parameters (rdi)
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1722 __ lea(locals, Address(rsp, rcx, Address::times_ptr, wordSize));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1723
a61af66fc99e Initial load
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parents:
diff changeset
1724 // save sender's sp
a61af66fc99e Initial load
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parents:
diff changeset
1725 // __ movl(rcx, rsp);
a61af66fc99e Initial load
duke
parents:
diff changeset
1726
a61af66fc99e Initial load
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parents:
diff changeset
1727 // get sender's sp
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1728 __ pop(rcx);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1729
a61af66fc99e Initial load
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parents:
diff changeset
1730 // get return address
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1731 __ pop(rax);
0
a61af66fc99e Initial load
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parents:
diff changeset
1732
a61af66fc99e Initial load
duke
parents:
diff changeset
1733 // rdx - # of additional locals
a61af66fc99e Initial load
duke
parents:
diff changeset
1734 // allocate space for locals
a61af66fc99e Initial load
duke
parents:
diff changeset
1735 // explicitly initialize locals
a61af66fc99e Initial load
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parents:
diff changeset
1736 {
a61af66fc99e Initial load
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parents:
diff changeset
1737 Label exit, loop;
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1738 __ testl(rdx, rdx); // (32bit ok)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1739 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0
a61af66fc99e Initial load
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parents:
diff changeset
1740 __ bind(loop);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1741 __ push((int32_t)NULL_WORD); // initialize local variables
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1742 __ decrement(rdx); // until everything initialized
a61af66fc99e Initial load
duke
parents:
diff changeset
1743 __ jcc(Assembler::greater, loop);
a61af66fc99e Initial load
duke
parents:
diff changeset
1744 __ bind(exit);
a61af66fc99e Initial load
duke
parents:
diff changeset
1745 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1746
a61af66fc99e Initial load
duke
parents:
diff changeset
1747
a61af66fc99e Initial load
duke
parents:
diff changeset
1748 // Assumes rax = return address
a61af66fc99e Initial load
duke
parents:
diff changeset
1749
a61af66fc99e Initial load
duke
parents:
diff changeset
1750 // allocate and initialize new interpreterState and method expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
1751 // IN(locals) -> locals
a61af66fc99e Initial load
duke
parents:
diff changeset
1752 // IN(state) -> any current interpreter activation
a61af66fc99e Initial load
duke
parents:
diff changeset
1753 // destroys rax, rcx, rdx, rdi
a61af66fc99e Initial load
duke
parents:
diff changeset
1754 // OUT (state) -> new interpreterState
a61af66fc99e Initial load
duke
parents:
diff changeset
1755 // OUT(rsp) -> bottom of methods expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
1756
a61af66fc99e Initial load
duke
parents:
diff changeset
1757 generate_compute_interpreter_state(state, locals, rcx, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
1758
a61af66fc99e Initial load
duke
parents:
diff changeset
1759 // Call interpreter
a61af66fc99e Initial load
duke
parents:
diff changeset
1760
a61af66fc99e Initial load
duke
parents:
diff changeset
1761 Label call_interpreter;
a61af66fc99e Initial load
duke
parents:
diff changeset
1762 __ bind(call_interpreter);
a61af66fc99e Initial load
duke
parents:
diff changeset
1763
a61af66fc99e Initial load
duke
parents:
diff changeset
1764 // c++ interpreter does not use stack banging or any implicit exceptions
a61af66fc99e Initial load
duke
parents:
diff changeset
1765 // leave for now to verify that check is proper.
a61af66fc99e Initial load
duke
parents:
diff changeset
1766 bang_stack_shadow_pages(false);
a61af66fc99e Initial load
duke
parents:
diff changeset
1767
a61af66fc99e Initial load
duke
parents:
diff changeset
1768
a61af66fc99e Initial load
duke
parents:
diff changeset
1769 // Call interpreter enter here if message is
a61af66fc99e Initial load
duke
parents:
diff changeset
1770 // set and we know stack size is valid
a61af66fc99e Initial load
duke
parents:
diff changeset
1771
a61af66fc99e Initial load
duke
parents:
diff changeset
1772 Label call_interpreter_2;
a61af66fc99e Initial load
duke
parents:
diff changeset
1773
a61af66fc99e Initial load
duke
parents:
diff changeset
1774 __ bind(call_interpreter_2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1775
a61af66fc99e Initial load
duke
parents:
diff changeset
1776 {
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1777 const Register thread = NOT_LP64(rcx) LP64_ONLY(r15_thread);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1778
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1779 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1780 __ mov(c_rarg0, state);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1781 #else
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1782 __ push(state); // push arg to interpreter
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1783 __ movptr(thread, STATE(_thread));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1784 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1785
a61af66fc99e Initial load
duke
parents:
diff changeset
1786 // We can setup the frame anchor with everything we want at this point
a61af66fc99e Initial load
duke
parents:
diff changeset
1787 // as we are thread_in_Java and no safepoints can occur until we go to
a61af66fc99e Initial load
duke
parents:
diff changeset
1788 // vm mode. We do have to clear flags on return from vm but that is it
a61af66fc99e Initial load
duke
parents:
diff changeset
1789 //
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1790 __ movptr(Address(thread, JavaThread::last_Java_fp_offset()), rbp);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1791 __ movptr(Address(thread, JavaThread::last_Java_sp_offset()), rsp);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1792
a61af66fc99e Initial load
duke
parents:
diff changeset
1793 // Call the interpreter
a61af66fc99e Initial load
duke
parents:
diff changeset
1794
a61af66fc99e Initial load
duke
parents:
diff changeset
1795 RuntimeAddress normal(CAST_FROM_FN_PTR(address, BytecodeInterpreter::run));
a61af66fc99e Initial load
duke
parents:
diff changeset
1796 RuntimeAddress checking(CAST_FROM_FN_PTR(address, BytecodeInterpreter::runWithChecks));
a61af66fc99e Initial load
duke
parents:
diff changeset
1797
a61af66fc99e Initial load
duke
parents:
diff changeset
1798 __ call(JvmtiExport::can_post_interpreter_events() ? checking : normal);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1799 NOT_LP64(__ pop(rax);) // discard parameter to run
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1800 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1801 // state is preserved since it is callee saved
a61af66fc99e Initial load
duke
parents:
diff changeset
1802 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1803
a61af66fc99e Initial load
duke
parents:
diff changeset
1804 // reset_last_Java_frame
a61af66fc99e Initial load
duke
parents:
diff changeset
1805
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1806 NOT_LP64(__ movl(thread, STATE(_thread));)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1807 __ reset_last_Java_frame(thread, true, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1808 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1809
a61af66fc99e Initial load
duke
parents:
diff changeset
1810 // examine msg from interpreter to determine next action
a61af66fc99e Initial load
duke
parents:
diff changeset
1811
a61af66fc99e Initial load
duke
parents:
diff changeset
1812 __ movl(rdx, STATE(_msg)); // Get new message
a61af66fc99e Initial load
duke
parents:
diff changeset
1813
a61af66fc99e Initial load
duke
parents:
diff changeset
1814 Label call_method;
a61af66fc99e Initial load
duke
parents:
diff changeset
1815 Label return_from_interpreted_method;
a61af66fc99e Initial load
duke
parents:
diff changeset
1816 Label throw_exception;
a61af66fc99e Initial load
duke
parents:
diff changeset
1817 Label bad_msg;
a61af66fc99e Initial load
duke
parents:
diff changeset
1818 Label do_OSR;
a61af66fc99e Initial load
duke
parents:
diff changeset
1819
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1820 __ cmpl(rdx, (int32_t)BytecodeInterpreter::call_method);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1821 __ jcc(Assembler::equal, call_method);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1822 __ cmpl(rdx, (int32_t)BytecodeInterpreter::return_from_method);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1823 __ jcc(Assembler::equal, return_from_interpreted_method);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1824 __ cmpl(rdx, (int32_t)BytecodeInterpreter::do_osr);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1825 __ jcc(Assembler::equal, do_OSR);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1826 __ cmpl(rdx, (int32_t)BytecodeInterpreter::throwing_exception);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1827 __ jcc(Assembler::equal, throw_exception);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1828 __ cmpl(rdx, (int32_t)BytecodeInterpreter::more_monitors);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1829 __ jcc(Assembler::notEqual, bad_msg);
a61af66fc99e Initial load
duke
parents:
diff changeset
1830
a61af66fc99e Initial load
duke
parents:
diff changeset
1831 // Allocate more monitor space, shuffle expression stack....
a61af66fc99e Initial load
duke
parents:
diff changeset
1832
a61af66fc99e Initial load
duke
parents:
diff changeset
1833 generate_more_monitors();
a61af66fc99e Initial load
duke
parents:
diff changeset
1834
a61af66fc99e Initial load
duke
parents:
diff changeset
1835 __ jmp(call_interpreter);
a61af66fc99e Initial load
duke
parents:
diff changeset
1836
a61af66fc99e Initial load
duke
parents:
diff changeset
1837 // uncommon trap needs to jump to here to enter the interpreter (re-execute current bytecode)
a61af66fc99e Initial load
duke
parents:
diff changeset
1838 unctrap_frame_manager_entry = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1839 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1840 // Load the registers we need.
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1841 __ lea(state, Address(rbp, -(int)sizeof(BytecodeInterpreter)));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1842 __ movptr(rsp, STATE(_stack_limit)); // restore expression stack to full depth
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1843 __ jmp(call_interpreter_2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1844
a61af66fc99e Initial load
duke
parents:
diff changeset
1845
a61af66fc99e Initial load
duke
parents:
diff changeset
1846
a61af66fc99e Initial load
duke
parents:
diff changeset
1847 //=============================================================================
a61af66fc99e Initial load
duke
parents:
diff changeset
1848 // Returning from a compiled method into a deopted method. The bytecode at the
a61af66fc99e Initial load
duke
parents:
diff changeset
1849 // bcp has completed. The result of the bytecode is in the native abi (the tosca
a61af66fc99e Initial load
duke
parents:
diff changeset
1850 // for the template based interpreter). Any stack space that was used by the
a61af66fc99e Initial load
duke
parents:
diff changeset
1851 // bytecode that has completed has been removed (e.g. parameters for an invoke)
a61af66fc99e Initial load
duke
parents:
diff changeset
1852 // so all that we have to do is place any pending result on the expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
1853 // and resume execution on the next bytecode.
a61af66fc99e Initial load
duke
parents:
diff changeset
1854
a61af66fc99e Initial load
duke
parents:
diff changeset
1855
a61af66fc99e Initial load
duke
parents:
diff changeset
1856 generate_deopt_handling();
a61af66fc99e Initial load
duke
parents:
diff changeset
1857 __ jmp(call_interpreter);
a61af66fc99e Initial load
duke
parents:
diff changeset
1858
a61af66fc99e Initial load
duke
parents:
diff changeset
1859
a61af66fc99e Initial load
duke
parents:
diff changeset
1860 // Current frame has caught an exception we need to dispatch to the
a61af66fc99e Initial load
duke
parents:
diff changeset
1861 // handler. We can get here because a native interpreter frame caught
a61af66fc99e Initial load
duke
parents:
diff changeset
1862 // an exception in which case there is no handler and we must rethrow
a61af66fc99e Initial load
duke
parents:
diff changeset
1863 // If it is a vanilla interpreted frame the we simply drop into the
a61af66fc99e Initial load
duke
parents:
diff changeset
1864 // interpreter and let it do the lookup.
a61af66fc99e Initial load
duke
parents:
diff changeset
1865
a61af66fc99e Initial load
duke
parents:
diff changeset
1866 Interpreter::_rethrow_exception_entry = __ pc();
a61af66fc99e Initial load
duke
parents:
diff changeset
1867 // rax: exception
a61af66fc99e Initial load
duke
parents:
diff changeset
1868 // rdx: return address/pc that threw exception
a61af66fc99e Initial load
duke
parents:
diff changeset
1869
a61af66fc99e Initial load
duke
parents:
diff changeset
1870 Label return_with_exception;
a61af66fc99e Initial load
duke
parents:
diff changeset
1871 Label unwind_and_forward;
a61af66fc99e Initial load
duke
parents:
diff changeset
1872
a61af66fc99e Initial load
duke
parents:
diff changeset
1873 // restore state pointer.
520
52a431267315 6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents: 337
diff changeset
1874 __ lea(state, Address(rbp, -(int)sizeof(BytecodeInterpreter)));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1875
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1876 __ movptr(rbx, STATE(_method)); // get method
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1877 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1878 __ movptr(Address(r15_thread, Thread::pending_exception_offset()), rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1879 #else
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1880 __ movl(rcx, STATE(_thread)); // get thread
a61af66fc99e Initial load
duke
parents:
diff changeset
1881
a61af66fc99e Initial load
duke
parents:
diff changeset
1882 // Store exception with interpreter will expect it
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1883 __ movptr(Address(rcx, Thread::pending_exception_offset()), rax);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1884 #endif // _LP64
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1885
a61af66fc99e Initial load
duke
parents:
diff changeset
1886 // is current frame vanilla or native?
a61af66fc99e Initial load
duke
parents:
diff changeset
1887
a61af66fc99e Initial load
duke
parents:
diff changeset
1888 __ movl(rdx, access_flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
1889 __ testl(rdx, JVM_ACC_NATIVE);
a61af66fc99e Initial load
duke
parents:
diff changeset
1890 __ jcc(Assembler::zero, return_with_exception); // vanilla interpreted frame, handle directly
a61af66fc99e Initial load
duke
parents:
diff changeset
1891
a61af66fc99e Initial load
duke
parents:
diff changeset
1892 // We drop thru to unwind a native interpreted frame with a pending exception
a61af66fc99e Initial load
duke
parents:
diff changeset
1893 // We jump here for the initial interpreter frame with exception pending
a61af66fc99e Initial load
duke
parents:
diff changeset
1894 // We unwind the current acivation and forward it to our caller.
a61af66fc99e Initial load
duke
parents:
diff changeset
1895
a61af66fc99e Initial load
duke
parents:
diff changeset
1896 __ bind(unwind_and_forward);
a61af66fc99e Initial load
duke
parents:
diff changeset
1897
a61af66fc99e Initial load
duke
parents:
diff changeset
1898 // unwind rbp, return stack to unextended value and re-push return address
a61af66fc99e Initial load
duke
parents:
diff changeset
1899
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1900 __ movptr(rcx, STATE(_sender_sp));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1901 __ leave();
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1902 __ pop(rdx);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1903 __ mov(rsp, rcx);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1904 __ push(rdx);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1905 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry()));
a61af66fc99e Initial load
duke
parents:
diff changeset
1906
a61af66fc99e Initial load
duke
parents:
diff changeset
1907 // Return point from a call which returns a result in the native abi
a61af66fc99e Initial load
duke
parents:
diff changeset
1908 // (c1/c2/jni-native). This result must be processed onto the java
a61af66fc99e Initial load
duke
parents:
diff changeset
1909 // expression stack.
a61af66fc99e Initial load
duke
parents:
diff changeset
1910 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1911 // A pending exception may be present in which case there is no result present
a61af66fc99e Initial load
duke
parents:
diff changeset
1912
a61af66fc99e Initial load
duke
parents:
diff changeset
1913 Label resume_interpreter;
a61af66fc99e Initial load
duke
parents:
diff changeset
1914 Label do_float;
a61af66fc99e Initial load
duke
parents:
diff changeset
1915 Label do_double;
a61af66fc99e Initial load
duke
parents:
diff changeset
1916 Label done_conv;
a61af66fc99e Initial load
duke
parents:
diff changeset
1917
a61af66fc99e Initial load
duke
parents:
diff changeset
1918 // The FPU stack is clean if UseSSE >= 2 but must be cleaned in other cases
a61af66fc99e Initial load
duke
parents:
diff changeset
1919 if (UseSSE < 2) {
520
52a431267315 6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents: 337
diff changeset
1920 __ lea(state, Address(rbp, -(int)sizeof(BytecodeInterpreter)));
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1921 __ movptr(rbx, STATE(_result._to_call._callee)); // get method just executed
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1922 __ movl(rcx, Address(rbx, Method::result_index_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1923 __ cmpl(rcx, AbstractInterpreter::BasicType_as_index(T_FLOAT)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1924 __ jcc(Assembler::equal, do_float);
a61af66fc99e Initial load
duke
parents:
diff changeset
1925 __ cmpl(rcx, AbstractInterpreter::BasicType_as_index(T_DOUBLE)); // Result stub address array index
a61af66fc99e Initial load
duke
parents:
diff changeset
1926 __ jcc(Assembler::equal, do_double);
520
52a431267315 6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents: 337
diff changeset
1927 #if !defined(_LP64) || defined(COMPILER1) || !defined(COMPILER2)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1928 __ empty_FPU_stack();
a61af66fc99e Initial load
duke
parents:
diff changeset
1929 #endif // COMPILER2
a61af66fc99e Initial load
duke
parents:
diff changeset
1930 __ jmp(done_conv);
a61af66fc99e Initial load
duke
parents:
diff changeset
1931
a61af66fc99e Initial load
duke
parents:
diff changeset
1932 __ bind(do_float);
a61af66fc99e Initial load
duke
parents:
diff changeset
1933 #ifdef COMPILER2
a61af66fc99e Initial load
duke
parents:
diff changeset
1934 for (int i = 1; i < 8; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1935 __ ffree(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
1936 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1937 #endif // COMPILER2
a61af66fc99e Initial load
duke
parents:
diff changeset
1938 __ jmp(done_conv);
a61af66fc99e Initial load
duke
parents:
diff changeset
1939 __ bind(do_double);
a61af66fc99e Initial load
duke
parents:
diff changeset
1940 #ifdef COMPILER2
a61af66fc99e Initial load
duke
parents:
diff changeset
1941 for (int i = 1; i < 8; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1942 __ ffree(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
1943 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1944 #endif // COMPILER2
a61af66fc99e Initial load
duke
parents:
diff changeset
1945 __ jmp(done_conv);
a61af66fc99e Initial load
duke
parents:
diff changeset
1946 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1947 __ MacroAssembler::verify_FPU(0, "generate_return_entry_for compiled");
a61af66fc99e Initial load
duke
parents:
diff changeset
1948 __ jmp(done_conv);
a61af66fc99e Initial load
duke
parents:
diff changeset
1949 }
a61af66fc99e Initial load
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parents:
diff changeset
1950
a61af66fc99e Initial load
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parents:
diff changeset
1951 // Return point to interpreter from compiled/native method
a61af66fc99e Initial load
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parents:
diff changeset
1952 InternalAddress return_from_native_method(__ pc());
a61af66fc99e Initial load
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parents:
diff changeset
1953
a61af66fc99e Initial load
duke
parents:
diff changeset
1954 __ bind(done_conv);
a61af66fc99e Initial load
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parents:
diff changeset
1955
a61af66fc99e Initial load
duke
parents:
diff changeset
1956
a61af66fc99e Initial load
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parents:
diff changeset
1957 // Result if any is in tosca. The java expression stack is in the state that the
a61af66fc99e Initial load
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parents:
diff changeset
1958 // calling convention left it (i.e. params may or may not be present)
a61af66fc99e Initial load
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parents:
diff changeset
1959 // Copy the result from tosca and place it on java expression stack.
a61af66fc99e Initial load
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parents:
diff changeset
1960
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1961 // Restore rsi/r13 as compiled code may not preserve it
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1962
520
52a431267315 6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents: 337
diff changeset
1963 __ lea(state, Address(rbp, -(int)sizeof(BytecodeInterpreter)));
0
a61af66fc99e Initial load
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parents:
diff changeset
1964
a61af66fc99e Initial load
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parents:
diff changeset
1965 // restore stack to what we had when we left (in case i2c extended it)
a61af66fc99e Initial load
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parents:
diff changeset
1966
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1967 __ movptr(rsp, STATE(_stack));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1968 __ lea(rsp, Address(rsp, wordSize));
0
a61af66fc99e Initial load
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parents:
diff changeset
1969
a61af66fc99e Initial load
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parents:
diff changeset
1970 // If there is a pending exception then we don't really have a result to process
a61af66fc99e Initial load
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parents:
diff changeset
1971
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1972 #ifdef _LP64
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1973 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1974 #else
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1975 __ movptr(rcx, STATE(_thread)); // get thread
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1976 __ cmpptr(Address(rcx, Thread::pending_exception_offset()), (int32_t)NULL_WORD);
520
52a431267315 6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents: 337
diff changeset
1977 #endif // _LP64
0
a61af66fc99e Initial load
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parents:
diff changeset
1978 __ jcc(Assembler::notZero, return_with_exception);
a61af66fc99e Initial load
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parents:
diff changeset
1979
a61af66fc99e Initial load
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parents:
diff changeset
1980 // get method just executed
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1981 __ movptr(rbx, STATE(_result._to_call._callee));
0
a61af66fc99e Initial load
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parents:
diff changeset
1982
a61af66fc99e Initial load
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parents:
diff changeset
1983 // callee left args on top of expression stack, remove them
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1984 __ movptr(rcx, constMethod);
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1985 __ load_unsigned_short(rcx, Address(rcx, ConstMethod::size_of_parameters_offset()));
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
1986
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1987 __ lea(rsp, Address(rsp, rcx, Address::times_ptr));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1988
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1989 __ movl(rcx, Address(rbx, Method::result_index_offset()));
0
a61af66fc99e Initial load
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parents:
diff changeset
1990 ExternalAddress tosca_to_stack((address)CppInterpreter::_tosca_to_stack);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1991 // Address index(noreg, rax, Address::times_ptr);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1992 __ movptr(rcx, ArrayAddress(tosca_to_stack, Address(noreg, rcx, Address::times_ptr)));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
1993 // __ movl(rcx, Address(noreg, rcx, Address::times_ptr, int(AbstractInterpreter::_tosca_to_stack)));
0
a61af66fc99e Initial load
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parents:
diff changeset
1994 __ call(rcx); // call result converter
a61af66fc99e Initial load
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parents:
diff changeset
1995 __ jmp(resume_interpreter);
a61af66fc99e Initial load
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parents:
diff changeset
1996
a61af66fc99e Initial load
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parents:
diff changeset
1997 // An exception is being caught on return to a vanilla interpreter frame.
a61af66fc99e Initial load
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parents:
diff changeset
1998 // Empty the stack and resume interpreter
a61af66fc99e Initial load
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parents:
diff changeset
1999
a61af66fc99e Initial load
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parents:
diff changeset
2000 __ bind(return_with_exception);
a61af66fc99e Initial load
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parents:
diff changeset
2001
a61af66fc99e Initial load
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parents:
diff changeset
2002 // Exception present, empty stack
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2003 __ movptr(rsp, STATE(_stack_base));
0
a61af66fc99e Initial load
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parents:
diff changeset
2004 __ jmp(resume_interpreter);
a61af66fc99e Initial load
duke
parents:
diff changeset
2005
a61af66fc99e Initial load
duke
parents:
diff changeset
2006 // Return from interpreted method we return result appropriate to the caller (i.e. "recursive"
a61af66fc99e Initial load
duke
parents:
diff changeset
2007 // interpreter call, or native) and unwind this interpreter activation.
a61af66fc99e Initial load
duke
parents:
diff changeset
2008 // All monitors should be unlocked.
a61af66fc99e Initial load
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parents:
diff changeset
2009
a61af66fc99e Initial load
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parents:
diff changeset
2010 __ bind(return_from_interpreted_method);
a61af66fc99e Initial load
duke
parents:
diff changeset
2011
a61af66fc99e Initial load
duke
parents:
diff changeset
2012 Label return_to_initial_caller;
a61af66fc99e Initial load
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parents:
diff changeset
2013
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2014 __ movptr(rbx, STATE(_method)); // get method just executed
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2015 __ cmpptr(STATE(_prev_link), (int32_t)NULL_WORD); // returning from "recursive" interpreter call?
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2016 __ movl(rax, Address(rbx, Method::result_index_offset())); // get result type index
0
a61af66fc99e Initial load
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parents:
diff changeset
2017 __ jcc(Assembler::equal, return_to_initial_caller); // back to native code (call_stub/c1/c2)
a61af66fc99e Initial load
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parents:
diff changeset
2018
a61af66fc99e Initial load
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parents:
diff changeset
2019 // Copy result to callers java stack
a61af66fc99e Initial load
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parents:
diff changeset
2020 ExternalAddress stack_to_stack((address)CppInterpreter::_stack_to_stack);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2021 // Address index(noreg, rax, Address::times_ptr);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2022
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2023 __ movptr(rax, ArrayAddress(stack_to_stack, Address(noreg, rax, Address::times_ptr)));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2024 // __ movl(rax, Address(noreg, rax, Address::times_ptr, int(AbstractInterpreter::_stack_to_stack)));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2025 __ call(rax); // call result converter
a61af66fc99e Initial load
duke
parents:
diff changeset
2026
a61af66fc99e Initial load
duke
parents:
diff changeset
2027 Label unwind_recursive_activation;
a61af66fc99e Initial load
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parents:
diff changeset
2028 __ bind(unwind_recursive_activation);
a61af66fc99e Initial load
duke
parents:
diff changeset
2029
a61af66fc99e Initial load
duke
parents:
diff changeset
2030 // returning to interpreter method from "recursive" interpreter call
a61af66fc99e Initial load
duke
parents:
diff changeset
2031 // result converter left rax pointing to top of the java stack for method we are returning
a61af66fc99e Initial load
duke
parents:
diff changeset
2032 // to. Now all we must do is unwind the state from the completed call
a61af66fc99e Initial load
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parents:
diff changeset
2033
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2034 __ movptr(state, STATE(_prev_link)); // unwind state
0
a61af66fc99e Initial load
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parents:
diff changeset
2035 __ leave(); // pop the frame
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2036 __ mov(rsp, rax); // unwind stack to remove args
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2037
a61af66fc99e Initial load
duke
parents:
diff changeset
2038 // Resume the interpreter. The current frame contains the current interpreter
a61af66fc99e Initial load
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parents:
diff changeset
2039 // state object.
a61af66fc99e Initial load
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parents:
diff changeset
2040 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2041
a61af66fc99e Initial load
duke
parents:
diff changeset
2042 __ bind(resume_interpreter);
a61af66fc99e Initial load
duke
parents:
diff changeset
2043
a61af66fc99e Initial load
duke
parents:
diff changeset
2044 // state == interpreterState object for method we are resuming
a61af66fc99e Initial load
duke
parents:
diff changeset
2045
a61af66fc99e Initial load
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parents:
diff changeset
2046 __ movl(STATE(_msg), (int)BytecodeInterpreter::method_resume);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2047 __ lea(rsp, Address(rsp, -wordSize)); // prepush stack (result if any already present)
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2048 __ movptr(STATE(_stack), rsp); // inform interpreter of new stack depth (parameters removed,
0
a61af66fc99e Initial load
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parents:
diff changeset
2049 // result if any on stack already )
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2050 __ movptr(rsp, STATE(_stack_limit)); // restore expression stack to full depth
0
a61af66fc99e Initial load
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parents:
diff changeset
2051 __ jmp(call_interpreter_2); // No need to bang
a61af66fc99e Initial load
duke
parents:
diff changeset
2052
a61af66fc99e Initial load
duke
parents:
diff changeset
2053 // interpreter returning to native code (call_stub/c1/c2)
a61af66fc99e Initial load
duke
parents:
diff changeset
2054 // convert result and unwind initial activation
a61af66fc99e Initial load
duke
parents:
diff changeset
2055 // rax - result index
a61af66fc99e Initial load
duke
parents:
diff changeset
2056
a61af66fc99e Initial load
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parents:
diff changeset
2057 __ bind(return_to_initial_caller);
a61af66fc99e Initial load
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parents:
diff changeset
2058 ExternalAddress stack_to_native((address)CppInterpreter::_stack_to_native_abi);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2059 // Address index(noreg, rax, Address::times_ptr);
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2060
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2061 __ movptr(rax, ArrayAddress(stack_to_native, Address(noreg, rax, Address::times_ptr)));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2062 __ call(rax); // call result converter
a61af66fc99e Initial load
duke
parents:
diff changeset
2063
a61af66fc99e Initial load
duke
parents:
diff changeset
2064 Label unwind_initial_activation;
a61af66fc99e Initial load
duke
parents:
diff changeset
2065 __ bind(unwind_initial_activation);
a61af66fc99e Initial load
duke
parents:
diff changeset
2066
a61af66fc99e Initial load
duke
parents:
diff changeset
2067 // RETURN TO CALL_STUB/C1/C2 code (result if any in rax/rdx ST(0))
a61af66fc99e Initial load
duke
parents:
diff changeset
2068
a61af66fc99e Initial load
duke
parents:
diff changeset
2069 /* Current stack picture
a61af66fc99e Initial load
duke
parents:
diff changeset
2070
a61af66fc99e Initial load
duke
parents:
diff changeset
2071 [ incoming parameters ]
a61af66fc99e Initial load
duke
parents:
diff changeset
2072 [ extra locals ]
a61af66fc99e Initial load
duke
parents:
diff changeset
2073 [ return address to CALL_STUB/C1/C2]
a61af66fc99e Initial load
duke
parents:
diff changeset
2074 fp -> [ CALL_STUB/C1/C2 fp ]
a61af66fc99e Initial load
duke
parents:
diff changeset
2075 BytecodeInterpreter object
a61af66fc99e Initial load
duke
parents:
diff changeset
2076 expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
2077 sp ->
a61af66fc99e Initial load
duke
parents:
diff changeset
2078
a61af66fc99e Initial load
duke
parents:
diff changeset
2079 */
a61af66fc99e Initial load
duke
parents:
diff changeset
2080
a61af66fc99e Initial load
duke
parents:
diff changeset
2081 // return restoring the stack to the original sender_sp value
a61af66fc99e Initial load
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parents:
diff changeset
2082
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2083 __ movptr(rcx, STATE(_sender_sp));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2084 __ leave();
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2085 __ pop(rdi); // get return address
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2086 // set stack to sender's sp
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2087 __ mov(rsp, rcx);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2088 __ jmp(rdi); // return to call_stub
a61af66fc99e Initial load
duke
parents:
diff changeset
2089
a61af66fc99e Initial load
duke
parents:
diff changeset
2090 // OSR request, adjust return address to make current frame into adapter frame
a61af66fc99e Initial load
duke
parents:
diff changeset
2091 // and enter OSR nmethod
a61af66fc99e Initial load
duke
parents:
diff changeset
2092
a61af66fc99e Initial load
duke
parents:
diff changeset
2093 __ bind(do_OSR);
a61af66fc99e Initial load
duke
parents:
diff changeset
2094
a61af66fc99e Initial load
duke
parents:
diff changeset
2095 Label remove_initial_frame;
a61af66fc99e Initial load
duke
parents:
diff changeset
2096
a61af66fc99e Initial load
duke
parents:
diff changeset
2097 // We are going to pop this frame. Is there another interpreter frame underneath
a61af66fc99e Initial load
duke
parents:
diff changeset
2098 // it or is it callstub/compiled?
a61af66fc99e Initial load
duke
parents:
diff changeset
2099
a61af66fc99e Initial load
duke
parents:
diff changeset
2100 // Move buffer to the expected parameter location
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2101 __ movptr(rcx, STATE(_result._osr._osr_buf));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2102
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2103 __ movptr(rax, STATE(_result._osr._osr_entry));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2104
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2105 __ cmpptr(STATE(_prev_link), (int32_t)NULL_WORD); // returning from "recursive" interpreter call?
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2106 __ jcc(Assembler::equal, remove_initial_frame); // back to native code (call_stub/c1/c2)
a61af66fc99e Initial load
duke
parents:
diff changeset
2107
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2108 __ movptr(sender_sp_on_entry, STATE(_sender_sp)); // get sender's sp in expected register
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2109 __ leave(); // pop the frame
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2110 __ mov(rsp, sender_sp_on_entry); // trim any stack expansion
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2111
a61af66fc99e Initial load
duke
parents:
diff changeset
2112
a61af66fc99e Initial load
duke
parents:
diff changeset
2113 // We know we are calling compiled so push specialized return
a61af66fc99e Initial load
duke
parents:
diff changeset
2114 // method uses specialized entry, push a return so we look like call stub setup
a61af66fc99e Initial load
duke
parents:
diff changeset
2115 // this path will handle fact that result is returned in registers and not
a61af66fc99e Initial load
duke
parents:
diff changeset
2116 // on the java stack.
a61af66fc99e Initial load
duke
parents:
diff changeset
2117
a61af66fc99e Initial load
duke
parents:
diff changeset
2118 __ pushptr(return_from_native_method.addr());
a61af66fc99e Initial load
duke
parents:
diff changeset
2119
a61af66fc99e Initial load
duke
parents:
diff changeset
2120 __ jmp(rax);
a61af66fc99e Initial load
duke
parents:
diff changeset
2121
a61af66fc99e Initial load
duke
parents:
diff changeset
2122 __ bind(remove_initial_frame);
a61af66fc99e Initial load
duke
parents:
diff changeset
2123
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2124 __ movptr(rdx, STATE(_sender_sp));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2125 __ leave();
a61af66fc99e Initial load
duke
parents:
diff changeset
2126 // get real return
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2127 __ pop(rsi);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2128 // set stack to sender's sp
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2129 __ mov(rsp, rdx);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2130 // repush real return
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2131 __ push(rsi);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2132 // Enter OSR nmethod
a61af66fc99e Initial load
duke
parents:
diff changeset
2133 __ jmp(rax);
a61af66fc99e Initial load
duke
parents:
diff changeset
2134
a61af66fc99e Initial load
duke
parents:
diff changeset
2135
a61af66fc99e Initial load
duke
parents:
diff changeset
2136
a61af66fc99e Initial load
duke
parents:
diff changeset
2137
a61af66fc99e Initial load
duke
parents:
diff changeset
2138 // Call a new method. All we do is (temporarily) trim the expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
2139 // push a return address to bring us back to here and leap to the new entry.
a61af66fc99e Initial load
duke
parents:
diff changeset
2140
a61af66fc99e Initial load
duke
parents:
diff changeset
2141 __ bind(call_method);
a61af66fc99e Initial load
duke
parents:
diff changeset
2142
a61af66fc99e Initial load
duke
parents:
diff changeset
2143 // stack points to next free location and not top element on expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
2144 // method expects sp to be pointing to topmost element
a61af66fc99e Initial load
duke
parents:
diff changeset
2145
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2146 __ movptr(rsp, STATE(_stack)); // pop args to c++ interpreter, set sp to java stack top
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2147 __ lea(rsp, Address(rsp, wordSize));
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2148
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2149 __ movptr(rbx, STATE(_result._to_call._callee)); // get method to execute
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2150
a61af66fc99e Initial load
duke
parents:
diff changeset
2151 // don't need a return address if reinvoking interpreter
a61af66fc99e Initial load
duke
parents:
diff changeset
2152
a61af66fc99e Initial load
duke
parents:
diff changeset
2153 // Make it look like call_stub calling conventions
a61af66fc99e Initial load
duke
parents:
diff changeset
2154
a61af66fc99e Initial load
duke
parents:
diff changeset
2155 // Get (potential) receiver
7402
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
2156 // get size of parameters in words
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
2157 __ movptr(rcx, constMethod);
fd74228fd5ca 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents: 7206
diff changeset
2158 __ load_unsigned_short(rcx, Address(rcx, ConstMethod::size_of_parameters_offset()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2159
a61af66fc99e Initial load
duke
parents:
diff changeset
2160 ExternalAddress recursive(CAST_FROM_FN_PTR(address, RecursiveInterpreterActivation));
a61af66fc99e Initial load
duke
parents:
diff changeset
2161 __ pushptr(recursive.addr()); // make it look good in the debugger
a61af66fc99e Initial load
duke
parents:
diff changeset
2162
a61af66fc99e Initial load
duke
parents:
diff changeset
2163 InternalAddress entry(entry_point);
a61af66fc99e Initial load
duke
parents:
diff changeset
2164 __ cmpptr(STATE(_result._to_call._callee_entry_point), entry.addr()); // returning to interpreter?
a61af66fc99e Initial load
duke
parents:
diff changeset
2165 __ jcc(Assembler::equal, re_dispatch); // yes
a61af66fc99e Initial load
duke
parents:
diff changeset
2166
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2167 __ pop(rax); // pop dummy address
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2168
a61af66fc99e Initial load
duke
parents:
diff changeset
2169
a61af66fc99e Initial load
duke
parents:
diff changeset
2170 // get specialized entry
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2171 __ movptr(rax, STATE(_result._to_call._callee_entry_point));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2172 // set sender SP
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2173 __ mov(sender_sp_on_entry, rsp);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2174
a61af66fc99e Initial load
duke
parents:
diff changeset
2175 // method uses specialized entry, push a return so we look like call stub setup
a61af66fc99e Initial load
duke
parents:
diff changeset
2176 // this path will handle fact that result is returned in registers and not
a61af66fc99e Initial load
duke
parents:
diff changeset
2177 // on the java stack.
a61af66fc99e Initial load
duke
parents:
diff changeset
2178
a61af66fc99e Initial load
duke
parents:
diff changeset
2179 __ pushptr(return_from_native_method.addr());
a61af66fc99e Initial load
duke
parents:
diff changeset
2180
a61af66fc99e Initial load
duke
parents:
diff changeset
2181 __ jmp(rax);
a61af66fc99e Initial load
duke
parents:
diff changeset
2182
a61af66fc99e Initial load
duke
parents:
diff changeset
2183 __ bind(bad_msg);
a61af66fc99e Initial load
duke
parents:
diff changeset
2184 __ stop("Bad message from interpreter");
a61af66fc99e Initial load
duke
parents:
diff changeset
2185
a61af66fc99e Initial load
duke
parents:
diff changeset
2186 // Interpreted method "returned" with an exception pass it on...
a61af66fc99e Initial load
duke
parents:
diff changeset
2187 // Pass result, unwind activation and continue/return to interpreter/call_stub
a61af66fc99e Initial load
duke
parents:
diff changeset
2188 // We handle result (if any) differently based on return to interpreter or call_stub
a61af66fc99e Initial load
duke
parents:
diff changeset
2189
a61af66fc99e Initial load
duke
parents:
diff changeset
2190 Label unwind_initial_with_pending_exception;
a61af66fc99e Initial load
duke
parents:
diff changeset
2191
a61af66fc99e Initial load
duke
parents:
diff changeset
2192 __ bind(throw_exception);
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2193 __ cmpptr(STATE(_prev_link), (int32_t)NULL_WORD); // returning from recursive interpreter call?
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2194 __ jcc(Assembler::equal, unwind_initial_with_pending_exception); // no, back to native code (call_stub/c1/c2)
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2195 __ movptr(rax, STATE(_locals)); // pop parameters get new stack value
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
2196 __ addptr(rax, wordSize); // account for prepush before we return
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2197 __ jmp(unwind_recursive_activation);
a61af66fc99e Initial load
duke
parents:
diff changeset
2198
a61af66fc99e Initial load
duke
parents:
diff changeset
2199 __ bind(unwind_initial_with_pending_exception);
a61af66fc99e Initial load
duke
parents:
diff changeset
2200
a61af66fc99e Initial load
duke
parents:
diff changeset
2201 // We will unwind the current (initial) interpreter frame and forward
a61af66fc99e Initial load
duke
parents:
diff changeset
2202 // the exception to the caller. We must put the exception in the
a61af66fc99e Initial load
duke
parents:
diff changeset
2203 // expected register and clear pending exception and then forward.
a61af66fc99e Initial load
duke
parents:
diff changeset
2204
a61af66fc99e Initial load
duke
parents:
diff changeset
2205 __ jmp(unwind_and_forward);
a61af66fc99e Initial load
duke
parents:
diff changeset
2206
a61af66fc99e Initial load
duke
parents:
diff changeset
2207 interpreter_frame_manager = entry_point;
a61af66fc99e Initial load
duke
parents:
diff changeset
2208 return entry_point;
a61af66fc99e Initial load
duke
parents:
diff changeset
2209 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2210
a61af66fc99e Initial load
duke
parents:
diff changeset
2211 address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2212 // determine code generation flags
a61af66fc99e Initial load
duke
parents:
diff changeset
2213 bool synchronized = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2214 address entry_point = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2215
a61af66fc99e Initial load
duke
parents:
diff changeset
2216 switch (kind) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2217 case Interpreter::zerolocals : break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2218 case Interpreter::zerolocals_synchronized: synchronized = true; break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2219 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2220 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2221 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2222 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2223 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 628
diff changeset
2224 case Interpreter::method_handle : entry_point = ((InterpreterGenerator*)this)->generate_method_handle_entry(); break;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2225
a61af66fc99e Initial load
duke
parents:
diff changeset
2226 case Interpreter::java_lang_math_sin : // fall thru
a61af66fc99e Initial load
duke
parents:
diff changeset
2227 case Interpreter::java_lang_math_cos : // fall thru
a61af66fc99e Initial load
duke
parents:
diff changeset
2228 case Interpreter::java_lang_math_tan : // fall thru
a61af66fc99e Initial load
duke
parents:
diff changeset
2229 case Interpreter::java_lang_math_abs : // fall thru
a61af66fc99e Initial load
duke
parents:
diff changeset
2230 case Interpreter::java_lang_math_log : // fall thru
a61af66fc99e Initial load
duke
parents:
diff changeset
2231 case Interpreter::java_lang_math_log10 : // fall thru
a61af66fc99e Initial load
duke
parents:
diff changeset
2232 case Interpreter::java_lang_math_sqrt : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind); break;
3249
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
2233 case Interpreter::java_lang_ref_reference_get
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2245
diff changeset
2234 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2235 default : ShouldNotReachHere(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2236 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2237
a61af66fc99e Initial load
duke
parents:
diff changeset
2238 if (entry_point) return entry_point;
a61af66fc99e Initial load
duke
parents:
diff changeset
2239
a61af66fc99e Initial load
duke
parents:
diff changeset
2240 return ((InterpreterGenerator*)this)->generate_normal_entry(synchronized);
a61af66fc99e Initial load
duke
parents:
diff changeset
2241
a61af66fc99e Initial load
duke
parents:
diff changeset
2242 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2243
a61af66fc99e Initial load
duke
parents:
diff changeset
2244 InterpreterGenerator::InterpreterGenerator(StubQueue* code)
a61af66fc99e Initial load
duke
parents:
diff changeset
2245 : CppInterpreterGenerator(code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2246 generate_all(); // down here so it can be "virtual"
a61af66fc99e Initial load
duke
parents:
diff changeset
2247 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2248
a61af66fc99e Initial load
duke
parents:
diff changeset
2249 // Deoptimization helpers for C++ interpreter
a61af66fc99e Initial load
duke
parents:
diff changeset
2250
a61af66fc99e Initial load
duke
parents:
diff changeset
2251 // How much stack a method activation needs in words.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2252 int AbstractInterpreter::size_top_interpreter_activation(Method* method) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2253
a61af66fc99e Initial load
duke
parents:
diff changeset
2254 const int stub_code = 4; // see generate_call_stub
a61af66fc99e Initial load
duke
parents:
diff changeset
2255 // Save space for one monitor to get into the interpreted method in case
a61af66fc99e Initial load
duke
parents:
diff changeset
2256 // the method is synchronized
a61af66fc99e Initial load
duke
parents:
diff changeset
2257 int monitor_size = method->is_synchronized() ?
a61af66fc99e Initial load
duke
parents:
diff changeset
2258 1*frame::interpreter_frame_monitor_size() : 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2259
a61af66fc99e Initial load
duke
parents:
diff changeset
2260 // total static overhead size. Account for interpreter state object, return
a61af66fc99e Initial load
duke
parents:
diff changeset
2261 // address, saved rbp and 2 words for a "static long no_params() method" issue.
a61af66fc99e Initial load
duke
parents:
diff changeset
2262
a61af66fc99e Initial load
duke
parents:
diff changeset
2263 const int overhead_size = sizeof(BytecodeInterpreter)/wordSize +
a61af66fc99e Initial load
duke
parents:
diff changeset
2264 ( frame::sender_sp_offset - frame::link_offset) + 2;
a61af66fc99e Initial load
duke
parents:
diff changeset
2265
10393
603ca7e51354 8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
roland
parents: 10105
diff changeset
2266 const int method_stack = (method->max_locals() + method->max_stack()) *
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2267 Interpreter::stackElementWords;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2268 return overhead_size + method_stack + stub_code;
a61af66fc99e Initial load
duke
parents:
diff changeset
2269 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2270
a61af66fc99e Initial load
duke
parents:
diff changeset
2271 // returns the activation size.
a61af66fc99e Initial load
duke
parents:
diff changeset
2272 static int size_activation_helper(int extra_locals_size, int monitor_size) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2273 return (extra_locals_size + // the addition space for locals
a61af66fc99e Initial load
duke
parents:
diff changeset
2274 2*BytesPerWord + // return address and saved rbp
a61af66fc99e Initial load
duke
parents:
diff changeset
2275 2*BytesPerWord + // "static long no_params() method" issue
a61af66fc99e Initial load
duke
parents:
diff changeset
2276 sizeof(BytecodeInterpreter) + // interpreterState
a61af66fc99e Initial load
duke
parents:
diff changeset
2277 monitor_size); // monitors
a61af66fc99e Initial load
duke
parents:
diff changeset
2278 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2279
a61af66fc99e Initial load
duke
parents:
diff changeset
2280 void BytecodeInterpreter::layout_interpreterState(interpreterState to_fill,
a61af66fc99e Initial load
duke
parents:
diff changeset
2281 frame* caller,
a61af66fc99e Initial load
duke
parents:
diff changeset
2282 frame* current,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2283 Method* method,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2284 intptr_t* locals,
a61af66fc99e Initial load
duke
parents:
diff changeset
2285 intptr_t* stack,
a61af66fc99e Initial load
duke
parents:
diff changeset
2286 intptr_t* stack_base,
a61af66fc99e Initial load
duke
parents:
diff changeset
2287 intptr_t* monitor_base,
a61af66fc99e Initial load
duke
parents:
diff changeset
2288 intptr_t* frame_bottom,
a61af66fc99e Initial load
duke
parents:
diff changeset
2289 bool is_top_frame
a61af66fc99e Initial load
duke
parents:
diff changeset
2290 )
a61af66fc99e Initial load
duke
parents:
diff changeset
2291 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2292 // What about any vtable?
a61af66fc99e Initial load
duke
parents:
diff changeset
2293 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2294 to_fill->_thread = JavaThread::current();
a61af66fc99e Initial load
duke
parents:
diff changeset
2295 // This gets filled in later but make it something recognizable for now
a61af66fc99e Initial load
duke
parents:
diff changeset
2296 to_fill->_bcp = method->code_base();
a61af66fc99e Initial load
duke
parents:
diff changeset
2297 to_fill->_locals = locals;
a61af66fc99e Initial load
duke
parents:
diff changeset
2298 to_fill->_constants = method->constants()->cache();
a61af66fc99e Initial load
duke
parents:
diff changeset
2299 to_fill->_method = method;
a61af66fc99e Initial load
duke
parents:
diff changeset
2300 to_fill->_mdx = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2301 to_fill->_stack = stack;
a61af66fc99e Initial load
duke
parents:
diff changeset
2302 if (is_top_frame && JavaThread::current()->popframe_forcing_deopt_reexecution() ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2303 to_fill->_msg = deopt_resume2;
a61af66fc99e Initial load
duke
parents:
diff changeset
2304 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2305 to_fill->_msg = method_resume;
a61af66fc99e Initial load
duke
parents:
diff changeset
2306 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2307 to_fill->_result._to_call._bcp_advance = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2308 to_fill->_result._to_call._callee_entry_point = NULL; // doesn't matter to anyone
a61af66fc99e Initial load
duke
parents:
diff changeset
2309 to_fill->_result._to_call._callee = NULL; // doesn't matter to anyone
a61af66fc99e Initial load
duke
parents:
diff changeset
2310 to_fill->_prev_link = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2311
a61af66fc99e Initial load
duke
parents:
diff changeset
2312 to_fill->_sender_sp = caller->unextended_sp();
a61af66fc99e Initial load
duke
parents:
diff changeset
2313
a61af66fc99e Initial load
duke
parents:
diff changeset
2314 if (caller->is_interpreted_frame()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2315 interpreterState prev = caller->get_interpreterState();
a61af66fc99e Initial load
duke
parents:
diff changeset
2316 to_fill->_prev_link = prev;
a61af66fc99e Initial load
duke
parents:
diff changeset
2317 // *current->register_addr(GR_Iprev_state) = (intptr_t) prev;
a61af66fc99e Initial load
duke
parents:
diff changeset
2318 // Make the prev callee look proper
a61af66fc99e Initial load
duke
parents:
diff changeset
2319 prev->_result._to_call._callee = method;
a61af66fc99e Initial load
duke
parents:
diff changeset
2320 if (*prev->_bcp == Bytecodes::_invokeinterface) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2321 prev->_result._to_call._bcp_advance = 5;
a61af66fc99e Initial load
duke
parents:
diff changeset
2322 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2323 prev->_result._to_call._bcp_advance = 3;
a61af66fc99e Initial load
duke
parents:
diff changeset
2324 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2325 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2326 to_fill->_oop_temp = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2327 to_fill->_stack_base = stack_base;
a61af66fc99e Initial load
duke
parents:
diff changeset
2328 // Need +1 here because stack_base points to the word just above the first expr stack entry
a61af66fc99e Initial load
duke
parents:
diff changeset
2329 // and stack_limit is supposed to point to the word just below the last expr stack entry.
a61af66fc99e Initial load
duke
parents:
diff changeset
2330 // See generate_compute_interpreter_state.
10393
603ca7e51354 8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
roland
parents: 10105
diff changeset
2331 to_fill->_stack_limit = stack_base - (method->max_stack() + 1);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2332 to_fill->_monitor_base = (BasicObjectLock*) monitor_base;
a61af66fc99e Initial load
duke
parents:
diff changeset
2333
a61af66fc99e Initial load
duke
parents:
diff changeset
2334 to_fill->_self_link = to_fill;
a61af66fc99e Initial load
duke
parents:
diff changeset
2335 assert(stack >= to_fill->_stack_limit && stack < to_fill->_stack_base,
a61af66fc99e Initial load
duke
parents:
diff changeset
2336 "Stack top out of range");
a61af66fc99e Initial load
duke
parents:
diff changeset
2337 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2338
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2339 int AbstractInterpreter::layout_activation(Method* method,
3369
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2340 int tempcount, //
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2341 int popframe_extra_args,
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2342 int moncount,
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2343 int caller_actual_parameters,
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2344 int callee_param_count,
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2345 int callee_locals,
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2346 frame* caller,
3d2ab563047a 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 3249
diff changeset
2347 frame* interpreter_frame,
8727
0094485b46c7 8009761: Deoptimization on sparc doesn't set Llast_SP correctly in the interpreter frames it creates
roland
parents: 8001
diff changeset
2348 bool is_top_frame,
0094485b46c7 8009761: Deoptimization on sparc doesn't set Llast_SP correctly in the interpreter frames it creates
roland
parents: 8001
diff changeset
2349 bool is_bottom_frame) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2350
a61af66fc99e Initial load
duke
parents:
diff changeset
2351 assert(popframe_extra_args == 0, "FIX ME");
a61af66fc99e Initial load
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parents:
diff changeset
2352 // NOTE this code must exactly mimic what InterpreterGenerator::generate_compute_interpreter_state()
a61af66fc99e Initial load
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parents:
diff changeset
2353 // does as far as allocating an interpreter frame.
a61af66fc99e Initial load
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parents:
diff changeset
2354 // If interpreter_frame!=NULL, set up the method, locals, and monitors.
a61af66fc99e Initial load
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parents:
diff changeset
2355 // The frame interpreter_frame, if not NULL, is guaranteed to be the right size,
a61af66fc99e Initial load
duke
parents:
diff changeset
2356 // as determined by a previous call to this method.
a61af66fc99e Initial load
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parents:
diff changeset
2357 // It is also guaranteed to be walkable even though it is in a skeletal state
a61af66fc99e Initial load
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parents:
diff changeset
2358 // NOTE: return size is in words not bytes
a61af66fc99e Initial load
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parents:
diff changeset
2359 // NOTE: tempcount is the current size of the java expression stack. For top most
a61af66fc99e Initial load
duke
parents:
diff changeset
2360 // frames we will allocate a full sized expression stack and not the curback
a61af66fc99e Initial load
duke
parents:
diff changeset
2361 // version that non-top frames have.
a61af66fc99e Initial load
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parents:
diff changeset
2362
a61af66fc99e Initial load
duke
parents:
diff changeset
2363 // Calculate the amount our frame will be adjust by the callee. For top frame
a61af66fc99e Initial load
duke
parents:
diff changeset
2364 // this is zero.
a61af66fc99e Initial load
duke
parents:
diff changeset
2365
a61af66fc99e Initial load
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parents:
diff changeset
2366 // NOTE: ia64 seems to do this wrong (or at least backwards) in that it
a61af66fc99e Initial load
duke
parents:
diff changeset
2367 // calculates the extra locals based on itself. Not what the callee does
a61af66fc99e Initial load
duke
parents:
diff changeset
2368 // to it. So it ignores last_frame_adjust value. Seems suspicious as far
a61af66fc99e Initial load
duke
parents:
diff changeset
2369 // as getting sender_sp correct.
a61af66fc99e Initial load
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parents:
diff changeset
2370
a61af66fc99e Initial load
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parents:
diff changeset
2371 int extra_locals_size = (callee_locals - callee_param_count) * BytesPerWord;
a61af66fc99e Initial load
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parents:
diff changeset
2372 int monitor_size = sizeof(BasicObjectLock) * moncount;
a61af66fc99e Initial load
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parents:
diff changeset
2373
a61af66fc99e Initial load
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parents:
diff changeset
2374 // First calculate the frame size without any java expression stack
a61af66fc99e Initial load
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parents:
diff changeset
2375 int short_frame_size = size_activation_helper(extra_locals_size,
a61af66fc99e Initial load
duke
parents:
diff changeset
2376 monitor_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
2377
a61af66fc99e Initial load
duke
parents:
diff changeset
2378 // Now with full size expression stack
10393
603ca7e51354 8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
roland
parents: 10105
diff changeset
2379 int full_frame_size = short_frame_size + method->max_stack() * BytesPerWord;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2380
a61af66fc99e Initial load
duke
parents:
diff changeset
2381 // and now with only live portion of the expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
2382 short_frame_size = short_frame_size + tempcount * BytesPerWord;
a61af66fc99e Initial load
duke
parents:
diff changeset
2383
a61af66fc99e Initial load
duke
parents:
diff changeset
2384 // the size the activation is right now. Only top frame is full size
a61af66fc99e Initial load
duke
parents:
diff changeset
2385 int frame_size = (is_top_frame ? full_frame_size : short_frame_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
2386
a61af66fc99e Initial load
duke
parents:
diff changeset
2387 if (interpreter_frame != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2388 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
2389 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable");
a61af66fc99e Initial load
duke
parents:
diff changeset
2390 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2391
a61af66fc99e Initial load
duke
parents:
diff changeset
2392 // MUCHO HACK
a61af66fc99e Initial load
duke
parents:
diff changeset
2393
a61af66fc99e Initial load
duke
parents:
diff changeset
2394 intptr_t* frame_bottom = (intptr_t*) ((intptr_t)interpreter_frame->sp() - (full_frame_size - frame_size));
a61af66fc99e Initial load
duke
parents:
diff changeset
2395
a61af66fc99e Initial load
duke
parents:
diff changeset
2396 /* Now fillin the interpreterState object */
a61af66fc99e Initial load
duke
parents:
diff changeset
2397
a61af66fc99e Initial load
duke
parents:
diff changeset
2398 // The state object is the first thing on the frame and easily located
a61af66fc99e Initial load
duke
parents:
diff changeset
2399
a61af66fc99e Initial load
duke
parents:
diff changeset
2400 interpreterState cur_state = (interpreterState) ((intptr_t)interpreter_frame->fp() - sizeof(BytecodeInterpreter));
a61af66fc99e Initial load
duke
parents:
diff changeset
2401
a61af66fc99e Initial load
duke
parents:
diff changeset
2402
a61af66fc99e Initial load
duke
parents:
diff changeset
2403 // Find the locals pointer. This is rather simple on x86 because there is no
a61af66fc99e Initial load
duke
parents:
diff changeset
2404 // confusing rounding at the callee to account for. We can trivially locate
a61af66fc99e Initial load
duke
parents:
diff changeset
2405 // our locals based on the current fp().
a61af66fc99e Initial load
duke
parents:
diff changeset
2406 // Note: the + 2 is for handling the "static long no_params() method" issue.
a61af66fc99e Initial load
duke
parents:
diff changeset
2407 // (too bad I don't really remember that issue well...)
a61af66fc99e Initial load
duke
parents:
diff changeset
2408
a61af66fc99e Initial load
duke
parents:
diff changeset
2409 intptr_t* locals;
a61af66fc99e Initial load
duke
parents:
diff changeset
2410 // If the caller is interpreted we need to make sure that locals points to the first
a61af66fc99e Initial load
duke
parents:
diff changeset
2411 // argument that the caller passed and not in an area where the stack might have been extended.
a61af66fc99e Initial load
duke
parents:
diff changeset
2412 // because the stack to stack to converter needs a proper locals value in order to remove the
a61af66fc99e Initial load
duke
parents:
diff changeset
2413 // arguments from the caller and place the result in the proper location. Hmm maybe it'd be
a61af66fc99e Initial load
duke
parents:
diff changeset
2414 // simpler if we simply stored the result in the BytecodeInterpreter object and let the c++ code
a61af66fc99e Initial load
duke
parents:
diff changeset
2415 // adjust the stack?? HMMM QQQ
a61af66fc99e Initial load
duke
parents:
diff changeset
2416 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2417 if (caller->is_interpreted_frame()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2418 // locals must agree with the caller because it will be used to set the
a61af66fc99e Initial load
duke
parents:
diff changeset
2419 // caller's tos when we return.
a61af66fc99e Initial load
duke
parents:
diff changeset
2420 interpreterState prev = caller->get_interpreterState();
a61af66fc99e Initial load
duke
parents:
diff changeset
2421 // stack() is prepushed.
a61af66fc99e Initial load
duke
parents:
diff changeset
2422 locals = prev->stack() + method->size_of_parameters();
a61af66fc99e Initial load
duke
parents:
diff changeset
2423 // locals = caller->unextended_sp() + (method->size_of_parameters() - 1);
a61af66fc99e Initial load
duke
parents:
diff changeset
2424 if (locals != interpreter_frame->fp() + frame::sender_sp_offset + (method->max_locals() - 1) + 2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2425 // os::breakpoint();
a61af66fc99e Initial load
duke
parents:
diff changeset
2426 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2427 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2428 // this is where a c2i would have placed locals (except for the +2)
a61af66fc99e Initial load
duke
parents:
diff changeset
2429 locals = interpreter_frame->fp() + frame::sender_sp_offset + (method->max_locals() - 1) + 2;
a61af66fc99e Initial load
duke
parents:
diff changeset
2430 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2431
a61af66fc99e Initial load
duke
parents:
diff changeset
2432 intptr_t* monitor_base = (intptr_t*) cur_state;
a61af66fc99e Initial load
duke
parents:
diff changeset
2433 intptr_t* stack_base = (intptr_t*) ((intptr_t) monitor_base - monitor_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
2434 /* +1 because stack is always prepushed */
a61af66fc99e Initial load
duke
parents:
diff changeset
2435 intptr_t* stack = (intptr_t*) ((intptr_t) stack_base - (tempcount + 1) * BytesPerWord);
a61af66fc99e Initial load
duke
parents:
diff changeset
2436
a61af66fc99e Initial load
duke
parents:
diff changeset
2437
a61af66fc99e Initial load
duke
parents:
diff changeset
2438 BytecodeInterpreter::layout_interpreterState(cur_state,
a61af66fc99e Initial load
duke
parents:
diff changeset
2439 caller,
a61af66fc99e Initial load
duke
parents:
diff changeset
2440 interpreter_frame,
a61af66fc99e Initial load
duke
parents:
diff changeset
2441 method,
a61af66fc99e Initial load
duke
parents:
diff changeset
2442 locals,
a61af66fc99e Initial load
duke
parents:
diff changeset
2443 stack,
a61af66fc99e Initial load
duke
parents:
diff changeset
2444 stack_base,
a61af66fc99e Initial load
duke
parents:
diff changeset
2445 monitor_base,
a61af66fc99e Initial load
duke
parents:
diff changeset
2446 frame_bottom,
a61af66fc99e Initial load
duke
parents:
diff changeset
2447 is_top_frame);
a61af66fc99e Initial load
duke
parents:
diff changeset
2448
a61af66fc99e Initial load
duke
parents:
diff changeset
2449 // BytecodeInterpreter::pd_layout_interpreterState(cur_state, interpreter_return_address, interpreter_frame->fp());
a61af66fc99e Initial load
duke
parents:
diff changeset
2450 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2451 return frame_size/BytesPerWord;
a61af66fc99e Initial load
duke
parents:
diff changeset
2452 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2453
a61af66fc99e Initial load
duke
parents:
diff changeset
2454 #endif // CC_INTERP (all)