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| 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
| 2 // All Rights Reserved. | 2 // All Rights Reserved. |
| 3 // | 3 // |
| 4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
| 5 // modification, are permitted provided that the following conditions | 5 // modification, are permitted provided that the following conditions |
| 6 // are met: | 6 // are met: |
| 7 // | 7 // |
| 8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
| 9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
| 10 // | 10 // |
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| 100 // absolute code pointer inside code object moves with the code object. | 100 // absolute code pointer inside code object moves with the code object. |
| 101 int32_t* p = reinterpret_cast<int32_t*>(pc_); | 101 int32_t* p = reinterpret_cast<int32_t*>(pc_); |
| 102 *p += delta; // relocate entry | 102 *p += delta; // relocate entry |
| 103 } | 103 } |
| 104 // We do not use pc relative addressing on ARM, so there is | 104 // We do not use pc relative addressing on ARM, so there is |
| 105 // nothing else to do. | 105 // nothing else to do. |
| 106 } | 106 } |
| 107 | 107 |
| 108 | 108 |
| 109 Address RelocInfo::target_address() { | 109 Address RelocInfo::target_address() { |
| 110 ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY); | 110 ASSERT(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_)); |
| 111 return Assembler::target_address_at(pc_); | 111 return Assembler::target_address_at(pc_); |
| 112 } | 112 } |
| 113 | 113 |
| 114 | 114 |
| 115 Address RelocInfo::target_address_address() { | 115 Address RelocInfo::target_address_address() { |
| 116 ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY | 116 ASSERT(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_) |
| 117 || rmode_ == EMBEDDED_OBJECT | 117 || rmode_ == EMBEDDED_OBJECT |
| 118 || rmode_ == EXTERNAL_REFERENCE); | 118 || rmode_ == EXTERNAL_REFERENCE); |
| 119 return reinterpret_cast<Address>(Assembler::target_pointer_address_at(pc_)); | 119 return reinterpret_cast<Address>(Assembler::target_pointer_address_at(pc_)); |
| 120 } | 120 } |
| 121 | 121 |
| 122 | 122 |
| 123 int RelocInfo::target_address_size() { | 123 int RelocInfo::target_address_size() { |
| 124 return kPointerSize; | 124 return kPointerSize; |
| 125 } | 125 } |
| 126 | 126 |
| 127 | 127 |
| 128 void RelocInfo::set_target_address(Address target, WriteBarrierMode mode) { | 128 void RelocInfo::set_target_address(Address target, WriteBarrierMode mode) { |
| 129 ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY); | 129 ASSERT(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_)); |
| 130 Assembler::set_target_address_at(pc_, target); | 130 Assembler::set_target_address_at(pc_, target); |
| 131 if (mode == UPDATE_WRITE_BARRIER && host() != NULL && IsCodeTarget(rmode_)) { | 131 if (mode == UPDATE_WRITE_BARRIER && host() != NULL && IsCodeTarget(rmode_)) { |
| 132 Object* target_code = Code::GetCodeFromTargetAddress(target); | 132 Object* target_code = Code::GetCodeFromTargetAddress(target); |
| 133 host()->GetHeap()->incremental_marking()->RecordWriteIntoCode( | 133 host()->GetHeap()->incremental_marking()->RecordWriteIntoCode( |
| 134 host(), this, HeapObject::cast(target_code)); | 134 host(), this, HeapObject::cast(target_code)); |
| 135 } | 135 } |
| 136 } | 136 } |
| 137 | 137 |
| 138 | 138 |
| 139 Object* RelocInfo::target_object() { | 139 Object* RelocInfo::target_object() { |
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| 314 visitor->VisitCodeAgeSequence(this); | 314 visitor->VisitCodeAgeSequence(this); |
| 315 #ifdef ENABLE_DEBUGGER_SUPPORT | 315 #ifdef ENABLE_DEBUGGER_SUPPORT |
| 316 // TODO(isolates): Get a cached isolate below. | 316 // TODO(isolates): Get a cached isolate below. |
| 317 } else if (((RelocInfo::IsJSReturn(mode) && | 317 } else if (((RelocInfo::IsJSReturn(mode) && |
| 318 IsPatchedReturnSequence()) || | 318 IsPatchedReturnSequence()) || |
| 319 (RelocInfo::IsDebugBreakSlot(mode) && | 319 (RelocInfo::IsDebugBreakSlot(mode) && |
| 320 IsPatchedDebugBreakSlotSequence())) && | 320 IsPatchedDebugBreakSlotSequence())) && |
| 321 Isolate::Current()->debug()->has_break_points()) { | 321 Isolate::Current()->debug()->has_break_points()) { |
| 322 visitor->VisitDebugTarget(this); | 322 visitor->VisitDebugTarget(this); |
| 323 #endif | 323 #endif |
| 324 } else if (mode == RelocInfo::RUNTIME_ENTRY) { | 324 } else if (RelocInfo::IsRuntimeEntry(mode)) { |
| 325 visitor->VisitRuntimeEntry(this); | 325 visitor->VisitRuntimeEntry(this); |
| 326 } | 326 } |
| 327 } | 327 } |
| 328 | 328 |
| 329 | 329 |
| 330 template<typename StaticVisitor> | 330 template<typename StaticVisitor> |
| 331 void RelocInfo::Visit(Heap* heap) { | 331 void RelocInfo::Visit(Heap* heap) { |
| 332 RelocInfo::Mode mode = rmode(); | 332 RelocInfo::Mode mode = rmode(); |
| 333 if (mode == RelocInfo::EMBEDDED_OBJECT) { | 333 if (mode == RelocInfo::EMBEDDED_OBJECT) { |
| 334 StaticVisitor::VisitEmbeddedPointer(heap, this); | 334 StaticVisitor::VisitEmbeddedPointer(heap, this); |
| 335 } else if (RelocInfo::IsCodeTarget(mode)) { | 335 } else if (RelocInfo::IsCodeTarget(mode)) { |
| 336 StaticVisitor::VisitCodeTarget(heap, this); | 336 StaticVisitor::VisitCodeTarget(heap, this); |
| 337 } else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) { | 337 } else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) { |
| 338 StaticVisitor::VisitGlobalPropertyCell(heap, this); | 338 StaticVisitor::VisitGlobalPropertyCell(heap, this); |
| 339 } else if (mode == RelocInfo::EXTERNAL_REFERENCE) { | 339 } else if (mode == RelocInfo::EXTERNAL_REFERENCE) { |
| 340 StaticVisitor::VisitExternalReference(this); | 340 StaticVisitor::VisitExternalReference(this); |
| 341 } else if (RelocInfo::IsCodeAgeSequence(mode)) { | 341 } else if (RelocInfo::IsCodeAgeSequence(mode)) { |
| 342 StaticVisitor::VisitCodeAgeSequence(heap, this); | 342 StaticVisitor::VisitCodeAgeSequence(heap, this); |
| 343 #ifdef ENABLE_DEBUGGER_SUPPORT | 343 #ifdef ENABLE_DEBUGGER_SUPPORT |
| 344 } else if (heap->isolate()->debug()->has_break_points() && | 344 } else if (heap->isolate()->debug()->has_break_points() && |
| 345 ((RelocInfo::IsJSReturn(mode) && | 345 ((RelocInfo::IsJSReturn(mode) && |
| 346 IsPatchedReturnSequence()) || | 346 IsPatchedReturnSequence()) || |
| 347 (RelocInfo::IsDebugBreakSlot(mode) && | 347 (RelocInfo::IsDebugBreakSlot(mode) && |
| 348 IsPatchedDebugBreakSlotSequence()))) { | 348 IsPatchedDebugBreakSlotSequence()))) { |
| 349 StaticVisitor::VisitDebugTarget(heap, this); | 349 StaticVisitor::VisitDebugTarget(heap, this); |
| 350 #endif | 350 #endif |
| 351 } else if (mode == RelocInfo::RUNTIME_ENTRY) { | 351 } else if (RelocInfo::IsRuntimeEntry(mode)) { |
| 352 StaticVisitor::VisitRuntimeEntry(this); | 352 StaticVisitor::VisitRuntimeEntry(this); |
| 353 } | 353 } |
| 354 } | 354 } |
| 355 | 355 |
| 356 | 356 |
| 357 Operand::Operand(int32_t immediate, RelocInfo::Mode rmode) { | 357 Operand::Operand(int32_t immediate, RelocInfo::Mode rmode) { |
| 358 rm_ = no_reg; | 358 rm_ = no_reg; |
| 359 imm32_ = immediate; | 359 imm32_ = immediate; |
| 360 rmode_ = rmode; | 360 rmode_ = rmode; |
| 361 } | 361 } |
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| 553 | 553 |
| 554 | 554 |
| 555 void Assembler::set_target_address_at(Address pc, Address target) { | 555 void Assembler::set_target_address_at(Address pc, Address target) { |
| 556 set_target_pointer_at(pc, target); | 556 set_target_pointer_at(pc, target); |
| 557 } | 557 } |
| 558 | 558 |
| 559 | 559 |
| 560 } } // namespace v8::internal | 560 } } // namespace v8::internal |
| 561 | 561 |
| 562 #endif // V8_ARM_ASSEMBLER_ARM_INL_H_ | 562 #endif // V8_ARM_ASSEMBLER_ARM_INL_H_ |
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