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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_X87 | 7 #if V8_TARGET_ARCH_X87 |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/heap.h" | 10 #include "src/heap.h" |
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72 return reinterpret_cast<int32_t>(buffer_) + l->pos(); | 72 return reinterpret_cast<int32_t>(buffer_) + l->pos(); |
73 } | 73 } |
74 private: | 74 private: |
75 byte* buffer_; | 75 byte* buffer_; |
76 }; | 76 }; |
77 | 77 |
78 | 78 |
79 MemMoveFunction CreateMemMoveFunction() { | 79 MemMoveFunction CreateMemMoveFunction() { |
80 size_t actual_size; | 80 size_t actual_size; |
81 // Allocate buffer in executable space. | 81 // Allocate buffer in executable space. |
82 byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB, &actual_size, true)); | 82 byte* buffer = |
| 83 static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true)); |
83 if (buffer == NULL) return NULL; | 84 if (buffer == NULL) return NULL; |
84 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); | 85 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); |
85 LabelConverter conv(buffer); | 86 LabelConverter conv(buffer); |
86 | 87 |
87 // Generated code is put into a fixed, unmovable buffer, and not into | 88 // Generated code is put into a fixed, unmovable buffer, and not into |
88 // the V8 heap. We can't, and don't, refer to any relocatable addresses | 89 // the V8 heap. We can't, and don't, refer to any relocatable addresses |
89 // (e.g. the JavaScript nan-object). | 90 // (e.g. the JavaScript nan-object). |
90 | 91 |
91 // 32-bit C declaration function calls pass arguments on stack. | 92 // 32-bit C declaration function calls pass arguments on stack. |
92 | 93 |
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174 __ mov_b(Operand(dst, 0), eax); | 175 __ mov_b(Operand(dst, 0), eax); |
175 __ jmp(&backward_loop_1byte); | 176 __ jmp(&backward_loop_1byte); |
176 } | 177 } |
177 | 178 |
178 __ bind(&pop_and_return); | 179 __ bind(&pop_and_return); |
179 MemMoveEmitPopAndReturn(&masm); | 180 MemMoveEmitPopAndReturn(&masm); |
180 | 181 |
181 CodeDesc desc; | 182 CodeDesc desc; |
182 masm.GetCode(&desc); | 183 masm.GetCode(&desc); |
183 ASSERT(!RelocInfo::RequiresRelocation(desc)); | 184 ASSERT(!RelocInfo::RequiresRelocation(desc)); |
184 CPU::FlushICache(buffer, actual_size); | 185 CpuFeatures::FlushICache(buffer, actual_size); |
185 OS::ProtectCode(buffer, actual_size); | 186 base::OS::ProtectCode(buffer, actual_size); |
186 // TODO(jkummerow): It would be nice to register this code creation event | 187 // TODO(jkummerow): It would be nice to register this code creation event |
187 // with the PROFILE / GDBJIT system. | 188 // with the PROFILE / GDBJIT system. |
188 return FUNCTION_CAST<MemMoveFunction>(buffer); | 189 return FUNCTION_CAST<MemMoveFunction>(buffer); |
189 } | 190 } |
190 | 191 |
191 | 192 |
192 #undef __ | 193 #undef __ |
193 | 194 |
194 // ------------------------------------------------------------------------- | 195 // ------------------------------------------------------------------------- |
195 // Code generators | 196 // Code generators |
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611 } | 612 } |
612 | 613 |
613 | 614 |
614 void Code::PatchPlatformCodeAge(Isolate* isolate, | 615 void Code::PatchPlatformCodeAge(Isolate* isolate, |
615 byte* sequence, | 616 byte* sequence, |
616 Code::Age age, | 617 Code::Age age, |
617 MarkingParity parity) { | 618 MarkingParity parity) { |
618 uint32_t young_length = isolate->code_aging_helper()->young_sequence_length(); | 619 uint32_t young_length = isolate->code_aging_helper()->young_sequence_length(); |
619 if (age == kNoAgeCodeAge) { | 620 if (age == kNoAgeCodeAge) { |
620 isolate->code_aging_helper()->CopyYoungSequenceTo(sequence); | 621 isolate->code_aging_helper()->CopyYoungSequenceTo(sequence); |
621 CPU::FlushICache(sequence, young_length); | 622 CpuFeatures::FlushICache(sequence, young_length); |
622 } else { | 623 } else { |
623 Code* stub = GetCodeAgeStub(isolate, age, parity); | 624 Code* stub = GetCodeAgeStub(isolate, age, parity); |
624 CodePatcher patcher(sequence, young_length); | 625 CodePatcher patcher(sequence, young_length); |
625 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32); | 626 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32); |
626 } | 627 } |
627 } | 628 } |
628 | 629 |
629 | 630 |
630 } } // namespace v8::internal | 631 } } // namespace v8::internal |
631 | 632 |
632 #endif // V8_TARGET_ARCH_X87 | 633 #endif // V8_TARGET_ARCH_X87 |
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