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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // | 2 // |
3 // Redistribution and use in source and binary forms, with or without | 3 // Redistribution and use in source and binary forms, with or without |
4 // modification, are permitted provided that the following conditions are | 4 // modification, are permitted provided that the following conditions are |
5 // met: | 5 // met: |
6 // | 6 // |
7 // * Redistributions of source code must retain the above copyright | 7 // * Redistributions of source code must retain the above copyright |
8 // notice, this list of conditions and the following disclaimer. | 8 // notice, this list of conditions and the following disclaimer. |
9 // * Redistributions in binary form must reproduce the above | 9 // * Redistributions in binary form must reproduce the above |
10 // copyright notice, this list of conditions and the following | 10 // copyright notice, this list of conditions and the following |
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153 | 153 |
154 | 154 |
155 bool RelocInfo::IsCodedSpecially() { | 155 bool RelocInfo::IsCodedSpecially() { |
156 // The deserializer needs to know whether a pointer is specially coded. Being | 156 // The deserializer needs to know whether a pointer is specially coded. Being |
157 // specially coded on A64 means that it is a movz/movk sequence. We don't | 157 // specially coded on A64 means that it is a movz/movk sequence. We don't |
158 // generate those for relocatable pointers. | 158 // generate those for relocatable pointers. |
159 return false; | 159 return false; |
160 } | 160 } |
161 | 161 |
162 | 162 |
| 163 bool RelocInfo::IsInConstantPool() { |
| 164 Instruction* instr = reinterpret_cast<Instruction*>(pc_); |
| 165 return instr->IsLdrLiteralX(); |
| 166 } |
| 167 |
| 168 |
163 void RelocInfo::PatchCode(byte* instructions, int instruction_count) { | 169 void RelocInfo::PatchCode(byte* instructions, int instruction_count) { |
164 // Patch the code at the current address with the supplied instructions. | 170 // Patch the code at the current address with the supplied instructions. |
165 Instr* pc = reinterpret_cast<Instr*>(pc_); | 171 Instr* pc = reinterpret_cast<Instr*>(pc_); |
166 Instr* instr = reinterpret_cast<Instr*>(instructions); | 172 Instr* instr = reinterpret_cast<Instr*>(instructions); |
167 for (int i = 0; i < instruction_count; i++) { | 173 for (int i = 0; i < instruction_count; i++) { |
168 *(pc + i) = *(instr + i); | 174 *(pc + i) = *(instr + i); |
169 } | 175 } |
170 | 176 |
171 // Indicate that code has changed. | 177 // Indicate that code has changed. |
172 CPU::FlushICache(pc_, instruction_count * kInstructionSize); | 178 CPU::FlushICache(pc_, instruction_count * kInstructionSize); |
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2597 // code. | 2603 // code. |
2598 #ifdef ENABLE_DEBUGGER_SUPPORT | 2604 #ifdef ENABLE_DEBUGGER_SUPPORT |
2599 RecordRelocInfo(RelocInfo::CONST_POOL, static_cast<intptr_t>(size)); | 2605 RecordRelocInfo(RelocInfo::CONST_POOL, static_cast<intptr_t>(size)); |
2600 #endif | 2606 #endif |
2601 } | 2607 } |
2602 | 2608 |
2603 | 2609 |
2604 } } // namespace v8::internal | 2610 } } // namespace v8::internal |
2605 | 2611 |
2606 #endif // V8_TARGET_ARCH_A64 | 2612 #endif // V8_TARGET_ARCH_A64 |
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