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annotate src/cpu/ppc/vm/interpreterRT_ppc.cpp @ 18857:5214669b01f2

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moved generate_deopt_entry_for to InterpreterGenerator for all architectures Contributed-by: Igor Ignatyev <igor.ignatyev@oracle.com>
author Doug Simon <doug.simon@oracle.com>
date Tue, 13 Jan 2015 13:08:26 +0100
parents 63c5920a038d
children
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1 /*
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * Copyright 2012, 2013 SAP AG. All rights reserved.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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21 * or visit www.oracle.com if you need additional information or have any
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22 * questions.
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23 *
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24 */
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25
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26 #include "precompiled.hpp"
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27 #include "asm/assembler.inline.hpp"
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28 #include "interpreter/interpreter.hpp"
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29 #include "interpreter/interpreterRuntime.hpp"
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30 #include "memory/allocation.inline.hpp"
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31 #include "memory/universe.inline.hpp"
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32 #include "oops/method.hpp"
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33 #include "oops/oop.inline.hpp"
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34 #include "runtime/handles.inline.hpp"
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35 #include "runtime/icache.hpp"
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36 #include "runtime/interfaceSupport.hpp"
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37 #include "runtime/signature.hpp"
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38
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39 #define __ _masm->
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40
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41 // Access macros for Java and C arguments.
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42 // The first Java argument is at index -1.
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43 #define locals_j_arg_at(index) (Interpreter::local_offset_in_bytes(index)), R18_locals
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44 // The first C argument is at index 0.
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45 #define sp_c_arg_at(index) ((index)*wordSize + _abi(carg_1)), R1_SP
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46
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47 // Implementation of SignatureHandlerGenerator
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48
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49 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
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50 Argument jni_arg(jni_offset());
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51 Register r = jni_arg.is_register() ? jni_arg.as_register() : R0;
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52
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53 __ lwa(r, locals_j_arg_at(offset())); // sign extension of integer
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54 if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
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55 __ std(r, sp_c_arg_at(jni_arg.number()));
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56 }
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57 }
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58
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59 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
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60 Argument jni_arg(jni_offset());
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61 Register r = jni_arg.is_register() ? jni_arg.as_register() : R0;
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62
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63 __ ld(r, locals_j_arg_at(offset()+1)); // long resides in upper slot
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64 if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
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65 __ std(r, sp_c_arg_at(jni_arg.number()));
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66 }
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67 }
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68
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69 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
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70 FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/)
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71 ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding())
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72 : F0;
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73
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74 __ lfs(fp_reg, locals_j_arg_at(offset()));
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75 if (DEBUG_ONLY(true ||) jni_offset() > 8) {
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76 __ stfs(fp_reg, sp_c_arg_at(jni_offset()));
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77 }
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78 }
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79
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80 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
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81 FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/)
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82 ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding())
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83 : F0;
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84
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85 __ lfd(fp_reg, locals_j_arg_at(offset()+1));
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86 if (DEBUG_ONLY(true ||) jni_offset() > 8) {
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87 __ stfd(fp_reg, sp_c_arg_at(jni_offset()));
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88 }
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89 }
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90
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91 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
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92 Argument jni_arg(jni_offset());
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93 Register r = jni_arg.is_register() ? jni_arg.as_register() : R11_scratch1;
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94
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95 // The handle for a receiver will never be null.
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96 bool do_NULL_check = offset() != 0 || is_static();
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97
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98 Label do_null;
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99 if (do_NULL_check) {
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100 __ ld(R0, locals_j_arg_at(offset()));
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101 __ cmpdi(CCR0, R0, 0);
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102 __ li(r, 0);
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103 __ beq(CCR0, do_null);
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104 }
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105 __ addir(r, locals_j_arg_at(offset()));
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106 __ bind(do_null);
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107 if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
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108 __ std(r, sp_c_arg_at(jni_arg.number()));
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109 }
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110 }
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111
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112 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
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113 #if !defined(ABI_ELFv2)
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114 // Emit fd for current codebuffer. Needs patching!
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115 __ emit_fd();
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116 #endif
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117
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118 // Generate code to handle arguments.
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119 iterate(fingerprint);
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120
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121 // Return the result handler.
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122 __ load_const(R3_RET, AbstractInterpreter::result_handler(method()->result_type()));
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123 __ blr();
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124
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125 __ flush();
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126 }
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127
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128 #undef __
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129
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130 // Implementation of SignatureHandlerLibrary
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131
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132 void SignatureHandlerLibrary::pd_set_handler(address handler) {
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133 #if !defined(ABI_ELFv2)
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134 // patch fd here.
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135 FunctionDescriptor* fd = (FunctionDescriptor*) handler;
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136
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137 fd->set_entry(handler + (int)sizeof(FunctionDescriptor));
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138 assert(fd->toc() == (address)0xcafe, "need to adjust TOC here");
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139 #endif
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140 }
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141
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142
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143 // Access function to get the signature.
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144 IRT_ENTRY(address, InterpreterRuntime::get_signature(JavaThread* thread, Method* method))
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145 methodHandle m(thread, method);
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146 assert(m->is_native(), "sanity check");
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147 Symbol *s = m->signature();
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148 return (address) s->base();
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149 IRT_END
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150
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151 IRT_ENTRY(address, InterpreterRuntime::get_result_handler(JavaThread* thread, Method* method))
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152 methodHandle m(thread, method);
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153 assert(m->is_native(), "sanity check");
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154 return AbstractInterpreter::result_handler(m->result_type());
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155 IRT_END