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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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| 130 } | 130 } |
| 131 | 131 |
| 132 | 132 |
| 133 Handle<Object> RelocInfo::target_object_handle(Assembler* origin) { | 133 Handle<Object> RelocInfo::target_object_handle(Assembler* origin) { |
| 134 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); | 134 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
| 135 return Handle<Object>(reinterpret_cast<Object**>( | 135 return Handle<Object>(reinterpret_cast<Object**>( |
| 136 Assembler::target_pointer_at(pc_))); | 136 Assembler::target_pointer_at(pc_))); |
| 137 } | 137 } |
| 138 | 138 |
| 139 | 139 |
| 140 Object** RelocInfo::target_object_address() { | |
| 141 // Provide a "natural pointer" to the embedded object, | |
| 142 // which can be de-referenced during heap iteration. | |
| 143 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); | |
| 144 reconstructed_obj_ptr_ = | |
| 145 reinterpret_cast<Object*>(Assembler::target_pointer_at(pc_)); | |
| 146 return &reconstructed_obj_ptr_; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 void RelocInfo::set_target_object(Object* target, WriteBarrierMode mode) { | 140 void RelocInfo::set_target_object(Object* target, WriteBarrierMode mode) { |
| 151 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); | 141 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
| 152 ASSERT(!target->IsConsString()); | 142 ASSERT(!target->IsConsString()); |
| 153 Assembler::set_target_pointer_at(pc_, reinterpret_cast<Address>(target)); | 143 Assembler::set_target_pointer_at(pc_, reinterpret_cast<Address>(target)); |
| 154 if (mode == UPDATE_WRITE_BARRIER && | 144 if (mode == UPDATE_WRITE_BARRIER && |
| 155 host() != NULL && | 145 host() != NULL && |
| 156 target->IsHeapObject()) { | 146 target->IsHeapObject()) { |
| 157 host()->GetHeap()->incremental_marking()->RecordWrite( | 147 host()->GetHeap()->incremental_marking()->RecordWrite( |
| 158 host(), &Memory::Object_at(pc_), HeapObject::cast(target)); | 148 host(), &Memory::Object_at(pc_), HeapObject::cast(target)); |
| 159 } | 149 } |
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| 522 | 512 |
| 523 | 513 |
| 524 void Assembler::set_target_address_at(Address pc, Address target) { | 514 void Assembler::set_target_address_at(Address pc, Address target) { |
| 525 set_target_pointer_at(pc, target); | 515 set_target_pointer_at(pc, target); |
| 526 } | 516 } |
| 527 | 517 |
| 528 | 518 |
| 529 } } // namespace v8::internal | 519 } } // namespace v8::internal |
| 530 | 520 |
| 531 #endif // V8_ARM_ASSEMBLER_ARM_INL_H_ | 521 #endif // V8_ARM_ASSEMBLER_ARM_INL_H_ |
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