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Issue 23710046: MIPS: remove getcurrent from stubs. (Closed) Base URL: https://github.com/v8/v8.git@gbl
Patch Set: Created 7 years, 3 months ago
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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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628 *parity = NO_MARKING_PARITY; 628 *parity = NO_MARKING_PARITY;
629 } else { 629 } else {
630 Address target_address = Memory::Address_at( 630 Address target_address = Memory::Address_at(
631 sequence + Assembler::kInstrSize * (kNoCodeAgeSequenceLength - 1)); 631 sequence + Assembler::kInstrSize * (kNoCodeAgeSequenceLength - 1));
632 Code* stub = GetCodeFromTargetAddress(target_address); 632 Code* stub = GetCodeFromTargetAddress(target_address);
633 GetCodeAgeAndParity(stub, age, parity); 633 GetCodeAgeAndParity(stub, age, parity);
634 } 634 }
635 } 635 }
636 636
637 637
638 void Code::PatchPlatformCodeAge(byte* sequence, 638 void Code::PatchPlatformCodeAge(Isolate* isolate,
639 byte* sequence,
639 Code::Age age, 640 Code::Age age,
640 MarkingParity parity) { 641 MarkingParity parity) {
641 uint32_t young_length; 642 uint32_t young_length;
642 byte* young_sequence = GetNoCodeAgeSequence(&young_length); 643 byte* young_sequence = GetNoCodeAgeSequence(&young_length);
643 if (age == kNoAge) { 644 if (age == kNoAge) {
644 CopyBytes(sequence, young_sequence, young_length); 645 CopyBytes(sequence, young_sequence, young_length);
645 CPU::FlushICache(sequence, young_length); 646 CPU::FlushICache(sequence, young_length);
646 } else { 647 } else {
647 Code* stub = GetCodeAgeStub(age, parity); 648 Code* stub = GetCodeAgeStub(isolate, age, parity);
648 CodePatcher patcher(sequence, young_length / Assembler::kInstrSize); 649 CodePatcher patcher(sequence, young_length / Assembler::kInstrSize);
649 // Mark this code sequence for FindPlatformCodeAgeSequence() 650 // Mark this code sequence for FindPlatformCodeAgeSequence()
650 patcher.masm()->nop(Assembler::CODE_AGE_MARKER_NOP); 651 patcher.masm()->nop(Assembler::CODE_AGE_MARKER_NOP);
651 // Save the function's original return address 652 // Save the function's original return address
652 // (it will be clobbered by Call(t9)) 653 // (it will be clobbered by Call(t9))
653 patcher.masm()->mov(at, ra); 654 patcher.masm()->mov(at, ra);
654 // Load the stub address to t9 and call it 655 // Load the stub address to t9 and call it
655 patcher.masm()->li(t9, 656 patcher.masm()->li(t9,
656 Operand(reinterpret_cast<uint32_t>(stub->instruction_start()))); 657 Operand(reinterpret_cast<uint32_t>(stub->instruction_start())));
657 patcher.masm()->Call(t9); 658 patcher.masm()->Call(t9);
658 // Record the stub address in the empty space for GetCodeAgeAndParity() 659 // Record the stub address in the empty space for GetCodeAgeAndParity()
659 patcher.masm()->dd(reinterpret_cast<uint32_t>(stub->instruction_start())); 660 patcher.masm()->dd(reinterpret_cast<uint32_t>(stub->instruction_start()));
660 } 661 }
661 } 662 }
662 663
663 664
664 #undef __ 665 #undef __
665 666
666 } } // namespace v8::internal 667 } } // namespace v8::internal
667 668
668 #endif // V8_TARGET_ARCH_MIPS 669 #endif // V8_TARGET_ARCH_MIPS
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