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annotate src/cpu/x86/vm/graalCodeInstaller_x86.hpp @ 14861:6325d3d82f1b

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set MethodProfileWidth to 0 since it's unused
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Thu, 27 Mar 2014 13:12:18 -0700
parents 6bab029d6e3a
children
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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
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62 inline bool check_metaspace_data(address pc, oop data) {
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63 jlong value = MetaspaceData::value(data);
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64 address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
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65 if (MetaspaceData::compressed(data)) {
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66 assert(*((jint*) operand) == value, err_msg("wrong compressed metaspace pointer: %p != %p", *((jint*) operand), value));
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67 } else {
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68 assert(*((jlong*) operand) == value, err_msg("wrong metaspace pointer: %p != %p", *((jlong*) operand), value));
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69 }
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70 return true;
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71 }
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72
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73 inline void CodeInstaller::pd_patch_OopData(int pc_offset, oop data) {
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74 address pc = _instructions->start() + pc_offset;
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75
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76 Handle obj = OopData::object(data);
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77 jobject value = JNIHandles::make_local(obj());
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78 if (OopData::compressed(data)) {
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79 address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
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80 int oop_index = _oop_recorder->find_index(value);
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81 _instructions->relocate(pc, oop_Relocation::spec(oop_index), Assembler::narrow_oop_operand);
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82 TRACE_graal_3("relocating (narrow oop constant) at %p/%p", pc, operand);
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83 } else {
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84 address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
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85 *((jobject*) operand) = value;
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86 _instructions->relocate(pc, oop_Relocation::spec_for_immediate(), Assembler::imm_operand);
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87 TRACE_graal_3("relocating (oop constant) at %p/%p", pc, operand);
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88 }
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89 }
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90
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91 inline void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, oop data) {
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92 address pc = _instructions->start() + pc_offset;
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93 jint offset = DataSectionReference::offset(data);
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94
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95 address operand = Assembler::locate_operand(pc, Assembler::disp32_operand);
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96 address next_instruction = Assembler::locate_next_instruction(pc);
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97 address dest = _constants->start() + offset;
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98
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99 long disp = dest - next_instruction;
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100 assert(disp == (jint) disp, "disp doesn't fit in 32 bits");
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101 *((jint*) operand) = (jint) disp;
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102
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103 _instructions->relocate(pc, section_word_Relocation::spec((address) dest, CodeBuffer::SECT_CONSTS), Assembler::disp32_operand);
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104 TRACE_graal_3("relocating at %p/%p with destination at %p (%d)", pc, operand, dest, offset);
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105 }
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106
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107 inline void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) {
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108 if (cb->is_nmethod()) {
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109 nmethod* nm = (nmethod*) cb;
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110 nativeJump_at((address)inst)->set_jump_destination(nm->verified_entry_point());
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111 } else {
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112 nativeJump_at((address)inst)->set_jump_destination(cb->code_begin());
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113 }
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114 _instructions->relocate((address)inst, runtime_call_Relocation::spec(), Assembler::call32_operand);
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115 }
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116
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117 inline void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
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118 address pc = (address) inst;
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119 if (inst->is_call()) {
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120 // NOTE: for call without a mov, the offset must fit a 32-bit immediate
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121 // see also CompilerToVM.getMaxCallTargetOffset()
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122 NativeCall* call = nativeCall_at(pc);
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123 call->set_destination((address) foreign_call_destination);
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124 _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
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125 } else if (inst->is_mov_literal64()) {
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126 NativeMovConstReg* mov = nativeMovConstReg_at(pc);
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127 mov->set_data((intptr_t) foreign_call_destination);
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128 _instructions->relocate(mov->instruction_address(), runtime_call_Relocation::spec(), Assembler::imm_operand);
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129 } else if (inst->is_jump()) {
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130 NativeJump* jump = nativeJump_at(pc);
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131 jump->set_jump_destination((address) foreign_call_destination);
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132 _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
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133 } else if (inst->is_cond_jump()) {
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134 address old_dest = nativeGeneralJump_at(pc)->jump_destination();
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135 address disp = Assembler::locate_operand(pc, Assembler::call32_operand);
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136 *(jint*) disp += ((address) foreign_call_destination) - old_dest;
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137 _instructions->relocate(pc, runtime_call_Relocation::spec(), Assembler::call32_operand);
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138 } else {
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139 fatal("unsupported relocation for foreign call");
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140 }
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141
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142 TRACE_graal_3("relocating (foreign call) at %p", inst);
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143 }
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144
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145 inline void CodeInstaller::pd_relocate_JavaMethod(oop hotspot_method, jint pc_offset) {
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146 #ifdef ASSERT
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147 Method* method = NULL;
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148 // we need to check, this might also be an unresolved method
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149 if (hotspot_method->is_a(HotSpotResolvedJavaMethod::klass())) {
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150 method = getMethodFromHotSpotMethod(hotspot_method);
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151 }
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152 #endif
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153 switch (_next_call_type) {
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154 case INLINE_INVOKE:
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155 break;
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156 case INVOKEVIRTUAL:
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157 case INVOKEINTERFACE: {
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158 assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface");
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159
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160 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
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161 call->set_destination(SharedRuntime::get_resolve_virtual_call_stub());
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162 _instructions->relocate(call->instruction_address(),
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163 virtual_call_Relocation::spec(_invoke_mark_pc),
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164 Assembler::call32_operand);
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165 break;
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166 }
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167 case INVOKESTATIC: {
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168 assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic");
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169
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170 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
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171 call->set_destination(SharedRuntime::get_resolve_static_call_stub());
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172 _instructions->relocate(call->instruction_address(),
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173 relocInfo::static_call_type, Assembler::call32_operand);
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174 break;
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175 }
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176 case INVOKESPECIAL: {
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177 assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial");
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178 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
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179 call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub());
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180 _instructions->relocate(call->instruction_address(),
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181 relocInfo::opt_virtual_call_type, Assembler::call32_operand);
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182 break;
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183 }
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184 default:
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185 break;
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186 }
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187 }
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188
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189 static void relocate_poll_near(address pc) {
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190 NativeInstruction* ni = nativeInstruction_at(pc);
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191 int32_t* disp = (int32_t*) Assembler::locate_operand(pc, Assembler::disp32_operand);
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192 int32_t offset = *disp; // The Java code installed the polling page offset into the disp32 operand
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193 intptr_t new_disp = (intptr_t) (os::get_polling_page() + offset) - (intptr_t) ni;
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194 *disp = (int32_t)new_disp;
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195 }
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196
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197
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198 inline void CodeInstaller::pd_relocate_poll(address pc, jint mark) {
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199 switch (mark) {
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200 case POLL_NEAR: {
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201 relocate_poll_near(pc);
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202 _instructions->relocate(pc, relocInfo::poll_type, Assembler::disp32_operand);
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203 break;
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204 }
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205 case POLL_FAR:
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206 // This is a load from a register so there is no relocatable operand.
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207 // We just have to ensure that the format is not disp32_operand
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208 // so that poll_Relocation::fix_relocation_after_move does the right
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209 // thing (i.e. ignores this relocation record)
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210 _instructions->relocate(pc, relocInfo::poll_type, Assembler::imm_operand);
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211 break;
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212 case POLL_RETURN_NEAR: {
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213 relocate_poll_near(pc);
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214 _instructions->relocate(pc, relocInfo::poll_return_type, Assembler::disp32_operand);
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215 break;
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216 }
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217 case POLL_RETURN_FAR:
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218 // see comment above for MARK_POLL_FAR
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219 _instructions->relocate(pc, relocInfo::poll_return_type, Assembler::imm_operand);
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220 break;
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221 default:
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222 fatal("invalid mark value");
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223 break;
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diff changeset
224 }
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225 }
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226
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227 #endif // CPU_X86_VM_CODEINSTALLER_X86_HPP
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228