Mercurial > hg > truffle
annotate src/cpu/x86/vm/graalCodeInstaller_x86.hpp @ 13750:a03cb658e68e
only register ShortCircuitOrNodes in ConditionalElimination for fixed anchors
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Fri, 24 Jan 2014 12:26:05 +0100 |
parents | 343541fb3b49 |
children | e14198669e5c |
rev | line source |
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1 /* |
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2 * Copyright (c) 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 #ifndef CPU_X86_VM_CODEINSTALLER_X86_HPP |
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24 #define CPU_X86_VM_CODEINSTALLER_X86_HPP |
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25 |
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26 #include "compiler/disassembler.hpp" |
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27 #include "runtime/javaCalls.hpp" |
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28 #include "graal/graalEnv.hpp" |
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29 #include "graal/graalCompiler.hpp" |
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30 #include "graal/graalCodeInstaller.hpp" |
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31 #include "graal/graalJavaAccess.hpp" |
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32 #include "graal/graalCompilerToVM.hpp" |
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33 #include "graal/graalRuntime.hpp" |
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34 #include "asm/register.hpp" |
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35 #include "classfile/vmSymbols.hpp" |
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36 #include "code/vmreg.hpp" |
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37 |
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38 inline jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, oop method) { |
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39 if (inst->is_call() || inst->is_jump()) { |
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40 assert(NativeCall::instruction_size == (int)NativeJump::instruction_size, "unexpected size"); |
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41 return (pc_offset + NativeCall::instruction_size); |
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42 } else if (inst->is_mov_literal64()) { |
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43 // mov+call instruction pair |
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44 jint offset = pc_offset + NativeMovConstReg::instruction_size; |
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45 u_char* call = (u_char*) (_instructions->start() + offset); |
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46 assert((call[0] == 0x40 || call[0] == 0x41) && call[1] == 0xFF, "expected call with rex/rexb prefix byte"); |
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47 offset += 3; /* prefix byte + opcode byte + modrm byte */ |
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48 return (offset); |
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49 } else if (inst->is_call_reg()) { |
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50 // the inlined vtable stub contains a "call register" instruction |
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51 assert(method != NULL, "only valid for virtual calls"); |
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52 return (pc_offset + ((NativeCallReg *) inst)->next_instruction_offset()); |
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53 } else if (inst->is_cond_jump()) { |
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54 address pc = (address) (inst); |
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55 return pc_offset + (jint) (Assembler::locate_next_instruction(pc) - pc); |
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56 } else { |
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57 fatal("unsupported type of instruction for call site"); |
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58 return 0; |
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59 } |
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60 } |
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61 |
10684 | 62 inline void CodeInstaller::pd_site_DataPatch(int pc_offset, oop site) { |
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63 oop inlineData = CompilationResult_DataPatch::inlineData(site); |
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64 address pc = _instructions->start() + pc_offset; |
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66 if (inlineData != NULL) { |
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67 oop kind = Constant::kind(inlineData); |
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68 char typeChar = Kind::typeChar(kind); |
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70 switch (typeChar) { |
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71 case 'z': |
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72 case 'b': |
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73 case 's': |
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74 case 'c': |
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75 case 'i': |
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76 fatal("int-sized values not expected in DataPatch"); |
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77 break; |
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78 case 'n': { |
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79 address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand); |
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80 Handle obj = Constant::object(inlineData); |
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81 |
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82 jobject value = JNIHandles::make_local(obj()); |
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83 int oop_index = _oop_recorder->find_index(value); |
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84 _instructions->relocate(pc, oop_Relocation::spec(oop_index), Assembler::narrow_oop_operand); |
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85 TRACE_graal_3("relocating (narrow oop constant) at %p/%p", pc, operand); |
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86 break; |
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87 } |
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88 case 'f': |
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89 case 'j': |
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90 case 'd': |
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91 case '*': { |
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93 *((jlong*) operand) = Constant::primitive(inlineData); |
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94 break; |
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95 } |
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96 case 'a': { |
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97 address operand = Assembler::locate_operand(pc, Assembler::imm_operand); |
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98 Handle obj = Constant::object(inlineData); |
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99 |
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100 jobject value = JNIHandles::make_local(obj()); |
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101 *((jobject*) operand) = value; |
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102 _instructions->relocate(pc, oop_Relocation::spec_for_immediate(), Assembler::imm_operand); |
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103 TRACE_graal_3("relocating (oop constant) at %p/%p", pc, operand); |
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104 break; |
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105 } |
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106 default: |
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107 fatal(err_msg("unexpected Kind (%d) in DataPatch", typeChar)); |
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108 break; |
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109 } |
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110 } else { |
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111 oop dataRef = CompilationResult_DataPatch::externalData(site); |
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112 jint offset = HotSpotCompiledCode_HotSpotData::offset(dataRef); |
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113 address operand = Assembler::locate_operand(pc, Assembler::disp32_operand); |
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114 address next_instruction = Assembler::locate_next_instruction(pc); |
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115 address dest = _constants->start() + offset; |
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116 |
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117 long disp = dest - next_instruction; |
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118 assert(disp == (jint) disp, "disp doesn't fit in 32 bits"); |
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119 *((jint*) operand) = (jint) disp; |
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120 |
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121 _instructions->relocate(pc, section_word_Relocation::spec((address) dest, CodeBuffer::SECT_CONSTS), Assembler::disp32_operand); |
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122 TRACE_graal_3("relocating at %p/%p with destination at %p (%d)", pc, operand, dest, offset); |
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123 } |
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124 } |
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125 |
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126 inline void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) { |
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127 if (cb->is_nmethod()) { |
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128 nmethod* nm = (nmethod*) cb; |
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129 nativeJump_at((address)inst)->set_jump_destination(nm->verified_entry_point()); |
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130 } else { |
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131 nativeJump_at((address)inst)->set_jump_destination(cb->code_begin()); |
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132 } |
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133 _instructions->relocate((address)inst, runtime_call_Relocation::spec(), Assembler::call32_operand); |
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134 } |
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135 |
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136 inline void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) { |
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137 address pc = (address) inst; |
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138 if (inst->is_call()) { |
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139 // NOTE: for call without a mov, the offset must fit a 32-bit immediate |
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140 // see also CompilerToVM.getMaxCallTargetOffset() |
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141 NativeCall* call = nativeCall_at(pc); |
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142 call->set_destination((address) foreign_call_destination); |
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143 _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand); |
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144 } else if (inst->is_mov_literal64()) { |
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145 NativeMovConstReg* mov = nativeMovConstReg_at(pc); |
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146 mov->set_data((intptr_t) foreign_call_destination); |
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147 _instructions->relocate(mov->instruction_address(), runtime_call_Relocation::spec(), Assembler::imm_operand); |
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148 } else if (inst->is_jump()) { |
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149 NativeJump* jump = nativeJump_at(pc); |
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150 jump->set_jump_destination((address) foreign_call_destination); |
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151 _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand); |
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152 } else if (inst->is_cond_jump()) { |
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153 address old_dest = nativeGeneralJump_at(pc)->jump_destination(); |
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154 address disp = Assembler::locate_operand(pc, Assembler::call32_operand); |
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155 *(jint*) disp += ((address) foreign_call_destination) - old_dest; |
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156 _instructions->relocate(pc, runtime_call_Relocation::spec(), Assembler::call32_operand); |
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157 } else { |
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158 fatal("unsupported relocation for foreign call"); |
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159 } |
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160 |
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161 TRACE_graal_3("relocating (foreign call) at %p", inst); |
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162 } |
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163 |
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164 inline void CodeInstaller::pd_relocate_JavaMethod(oop hotspot_method, jint pc_offset) { |
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165 #ifdef ASSERT |
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166 Method* method = NULL; |
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167 // we need to check, this might also be an unresolved method |
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168 if (hotspot_method->is_a(HotSpotResolvedJavaMethod::klass())) { |
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169 method = getMethodFromHotSpotMethod(hotspot_method); |
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170 } |
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171 #endif |
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172 switch (_next_call_type) { |
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173 case MARK_INLINE_INVOKE: |
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174 break; |
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175 case MARK_INVOKEVIRTUAL: |
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176 case MARK_INVOKEINTERFACE: { |
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177 assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface"); |
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178 |
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179 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset); |
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180 call->set_destination(SharedRuntime::get_resolve_virtual_call_stub()); |
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181 _instructions->relocate(call->instruction_address(), |
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182 virtual_call_Relocation::spec(_invoke_mark_pc), |
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183 Assembler::call32_operand); |
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184 break; |
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185 } |
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186 case MARK_INVOKESTATIC: { |
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187 assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic"); |
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188 |
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189 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset); |
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190 call->set_destination(SharedRuntime::get_resolve_static_call_stub()); |
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191 _instructions->relocate(call->instruction_address(), |
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192 relocInfo::static_call_type, Assembler::call32_operand); |
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193 break; |
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194 } |
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195 case MARK_INVOKESPECIAL: { |
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196 assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial"); |
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197 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset); |
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198 call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub()); |
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199 _instructions->relocate(call->instruction_address(), |
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200 relocInfo::opt_virtual_call_type, Assembler::call32_operand); |
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201 break; |
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202 } |
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203 default: |
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204 break; |
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205 } |
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206 } |
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207 |
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208 static void relocate_poll_near(address pc) { |
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209 NativeInstruction* ni = nativeInstruction_at(pc); |
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210 int32_t* disp = (int32_t*) Assembler::locate_operand(pc, Assembler::disp32_operand); |
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211 int32_t offset = *disp; // The Java code installed the polling page offset into the disp32 operand |
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212 intptr_t new_disp = (intptr_t) (os::get_polling_page() + offset) - (intptr_t) ni; |
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213 *disp = (int32_t)new_disp; |
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214 } |
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215 |
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216 |
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217 inline void CodeInstaller::pd_relocate_poll(address pc, jint mark) { |
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218 switch (mark) { |
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219 case MARK_POLL_NEAR: { |
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220 relocate_poll_near(pc); |
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221 _instructions->relocate(pc, relocInfo::poll_type, Assembler::disp32_operand); |
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222 break; |
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223 } |
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224 case MARK_POLL_FAR: |
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225 // This is a load from a register so there is no relocatable operand. |
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226 // We just have to ensure that the format is not disp32_operand |
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227 // so that poll_Relocation::fix_relocation_after_move does the right |
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228 // thing (i.e. ignores this relocation record) |
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229 _instructions->relocate(pc, relocInfo::poll_type, Assembler::imm_operand); |
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230 break; |
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231 case MARK_POLL_RETURN_NEAR: { |
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232 relocate_poll_near(pc); |
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233 _instructions->relocate(pc, relocInfo::poll_return_type, Assembler::disp32_operand); |
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234 break; |
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235 } |
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236 case MARK_POLL_RETURN_FAR: |
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237 // see comment above for MARK_POLL_FAR |
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238 _instructions->relocate(pc, relocInfo::poll_return_type, Assembler::imm_operand); |
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239 break; |
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240 default: |
11799 | 241 fatal("invalid mark value"); |
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242 break; |
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243 } |
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244 } |
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245 |
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246 #endif // CPU_X86_VM_CODEINSTALLER_X86_HPP |
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247 |