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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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188 Address Assembler::target_address_at(Address pc) { | 188 Address Assembler::target_address_at(Address pc) { |
189 return Memory::int32_at(pc) + pc + 4; | 189 return Memory::int32_at(pc) + pc + 4; |
190 } | 190 } |
191 | 191 |
192 | 192 |
193 void Assembler::set_target_address_at(Address pc, Address target) { | 193 void Assembler::set_target_address_at(Address pc, Address target) { |
194 Memory::int32_at(pc) = static_cast<int32_t>(target - pc - 4); | 194 Memory::int32_at(pc) = static_cast<int32_t>(target - pc - 4); |
195 CPU::FlushICache(pc, sizeof(int32_t)); | 195 CPU::FlushICache(pc, sizeof(int32_t)); |
196 } | 196 } |
197 | 197 |
| 198 |
| 199 Address Assembler::target_address_from_return_address(Address pc) { |
| 200 return pc - kCallTargetAddressOffset; |
| 201 } |
| 202 |
| 203 |
198 Handle<Object> Assembler::code_target_object_handle_at(Address pc) { | 204 Handle<Object> Assembler::code_target_object_handle_at(Address pc) { |
199 return code_targets_[Memory::int32_at(pc)]; | 205 return code_targets_[Memory::int32_at(pc)]; |
200 } | 206 } |
201 | 207 |
202 // ----------------------------------------------------------------------------- | 208 // ----------------------------------------------------------------------------- |
203 // Implementation of RelocInfo | 209 // Implementation of RelocInfo |
204 | 210 |
205 // The modes possibly affected by apply must be in kApplyMask. | 211 // The modes possibly affected by apply must be in kApplyMask. |
206 void RelocInfo::apply(intptr_t delta) { | 212 void RelocInfo::apply(intptr_t delta) { |
207 if (IsInternalReference(rmode_)) { | 213 if (IsInternalReference(rmode_)) { |
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478 ASSERT(len_ == 1 || len_ == 2); | 484 ASSERT(len_ == 1 || len_ == 2); |
479 int32_t* p = reinterpret_cast<int32_t*>(&buf_[len_]); | 485 int32_t* p = reinterpret_cast<int32_t*>(&buf_[len_]); |
480 *p = disp; | 486 *p = disp; |
481 len_ += sizeof(int32_t); | 487 len_ += sizeof(int32_t); |
482 } | 488 } |
483 | 489 |
484 | 490 |
485 } } // namespace v8::internal | 491 } } // namespace v8::internal |
486 | 492 |
487 #endif // V8_X64_ASSEMBLER_X64_INL_H_ | 493 #endif // V8_X64_ASSEMBLER_X64_INL_H_ |
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