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1 | 1 |
2 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 2 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
3 // All Rights Reserved. | 3 // All Rights Reserved. |
4 // | 4 // |
5 // Redistribution and use in source and binary forms, with or without | 5 // Redistribution and use in source and binary forms, with or without |
6 // modification, are permitted provided that the following conditions are | 6 // modification, are permitted provided that the following conditions are |
7 // met: | 7 // met: |
8 // | 8 // |
9 // - Redistributions of source code must retain the above copyright notice, | 9 // - Redistributions of source code must retain the above copyright notice, |
10 // this list of conditions and the following disclaimer. | 10 // this list of conditions and the following disclaimer. |
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183 } | 183 } |
184 | 184 |
185 | 185 |
186 Handle<Object> RelocInfo::target_object_handle(Assembler* origin) { | 186 Handle<Object> RelocInfo::target_object_handle(Assembler* origin) { |
187 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); | 187 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
188 return Handle<Object>(reinterpret_cast<Object**>( | 188 return Handle<Object>(reinterpret_cast<Object**>( |
189 Assembler::target_address_at(pc_))); | 189 Assembler::target_address_at(pc_))); |
190 } | 190 } |
191 | 191 |
192 | 192 |
193 Object** RelocInfo::target_object_address() { | |
194 // Provide a "natural pointer" to the embedded object, | |
195 // which can be de-referenced during heap iteration. | |
196 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); | |
197 reconstructed_obj_ptr_ = | |
198 reinterpret_cast<Object*>(Assembler::target_address_at(pc_)); | |
199 return &reconstructed_obj_ptr_; | |
200 } | |
201 | |
202 | |
203 void RelocInfo::set_target_object(Object* target, WriteBarrierMode mode) { | 193 void RelocInfo::set_target_object(Object* target, WriteBarrierMode mode) { |
204 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); | 194 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
205 ASSERT(!target->IsConsString()); | 195 ASSERT(!target->IsConsString()); |
206 Assembler::set_target_address_at(pc_, reinterpret_cast<Address>(target)); | 196 Assembler::set_target_address_at(pc_, reinterpret_cast<Address>(target)); |
207 if (mode == UPDATE_WRITE_BARRIER && | 197 if (mode == UPDATE_WRITE_BARRIER && |
208 host() != NULL && | 198 host() != NULL && |
209 target->IsHeapObject()) { | 199 target->IsHeapObject()) { |
210 host()->GetHeap()->incremental_marking()->RecordWrite( | 200 host()->GetHeap()->incremental_marking()->RecordWrite( |
211 host(), &Memory::Object_at(pc_), HeapObject::cast(target)); | 201 host(), &Memory::Object_at(pc_), HeapObject::cast(target)); |
212 } | 202 } |
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421 } | 411 } |
422 *reinterpret_cast<Instr*>(pc_) = x; | 412 *reinterpret_cast<Instr*>(pc_) = x; |
423 pc_ += kInstrSize; | 413 pc_ += kInstrSize; |
424 CheckTrampolinePoolQuick(); | 414 CheckTrampolinePoolQuick(); |
425 } | 415 } |
426 | 416 |
427 | 417 |
428 } } // namespace v8::internal | 418 } } // namespace v8::internal |
429 | 419 |
430 #endif // V8_MIPS_ASSEMBLER_MIPS_INL_H_ | 420 #endif // V8_MIPS_ASSEMBLER_MIPS_INL_H_ |
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