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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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672 for (unsigned index = 0; index < stack_slots; index++) { | 672 for (unsigned index = 0; index < stack_slots; index++) { |
673 int byte_index = index >> kBitsPerByteLog2; | 673 int byte_index = index >> kBitsPerByteLog2; |
674 int bit_index = index & (kBitsPerByte - 1); | 674 int bit_index = index & (kBitsPerByte - 1); |
675 if ((safepoint_bits[byte_index] & (1U << bit_index)) != 0) { | 675 if ((safepoint_bits[byte_index] & (1U << bit_index)) != 0) { |
676 v->VisitPointer(parameters_limit + index); | 676 v->VisitPointer(parameters_limit + index); |
677 } | 677 } |
678 } | 678 } |
679 | 679 |
680 // Visit the return address in the callee and incoming arguments. | 680 // Visit the return address in the callee and incoming arguments. |
681 IteratePc(v, pc_address(), code); | 681 IteratePc(v, pc_address(), code); |
| 682 |
| 683 // Visit the context in stub frame and JavaScript frame. |
| 684 // Visit the function in JavaScript frame. |
| 685 Object** fixed_base = &Memory::Object_at( |
| 686 fp() + StandardFrameConstants::kMarkerOffset); |
| 687 Object** fixed_limit = &Memory::Object_at(fp()); |
| 688 v->VisitPointers(fixed_base, fixed_limit); |
682 } | 689 } |
683 | 690 |
684 | 691 |
685 void StubFrame::Iterate(ObjectVisitor* v) const { | 692 void StubFrame::Iterate(ObjectVisitor* v) const { |
686 IterateCompiledFrame(v); | 693 IterateCompiledFrame(v); |
687 } | 694 } |
688 | 695 |
689 | 696 |
690 Code* StubFrame::unchecked_code() const { | 697 Code* StubFrame::unchecked_code() const { |
691 return static_cast<Code*>(isolate()->heap()->FindCodeObject(pc())); | 698 return static_cast<Code*>(isolate()->heap()->FindCodeObject(pc())); |
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703 | 710 |
704 | 711 |
705 void OptimizedFrame::Iterate(ObjectVisitor* v) const { | 712 void OptimizedFrame::Iterate(ObjectVisitor* v) const { |
706 #ifdef DEBUG | 713 #ifdef DEBUG |
707 // Make sure that optimized frames do not contain any stack handlers. | 714 // Make sure that optimized frames do not contain any stack handlers. |
708 StackHandlerIterator it(this, top_handler()); | 715 StackHandlerIterator it(this, top_handler()); |
709 ASSERT(it.done()); | 716 ASSERT(it.done()); |
710 #endif | 717 #endif |
711 | 718 |
712 IterateCompiledFrame(v); | 719 IterateCompiledFrame(v); |
713 | |
714 // Visit the context and the function. | |
715 Object** fixed_base = &Memory::Object_at( | |
716 fp() + JavaScriptFrameConstants::kFunctionOffset); | |
717 Object** fixed_limit = &Memory::Object_at(fp()); | |
718 v->VisitPointers(fixed_base, fixed_limit); | |
719 } | 720 } |
720 | 721 |
721 | 722 |
722 void JavaScriptFrame::SetParameterValue(int index, Object* value) const { | 723 void JavaScriptFrame::SetParameterValue(int index, Object* value) const { |
723 Memory::Object_at(GetParameterSlot(index)) = value; | 724 Memory::Object_at(GetParameterSlot(index)) = value; |
724 } | 725 } |
725 | 726 |
726 | 727 |
727 bool JavaScriptFrame::IsConstructor() const { | 728 bool JavaScriptFrame::IsConstructor() const { |
728 Address fp = caller_fp(); | 729 Address fp = caller_fp(); |
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1504 ZoneList<StackFrame*> list(10, zone); | 1505 ZoneList<StackFrame*> list(10, zone); |
1505 for (StackFrameIterator it; !it.done(); it.Advance()) { | 1506 for (StackFrameIterator it; !it.done(); it.Advance()) { |
1506 StackFrame* frame = AllocateFrameCopy(it.frame(), zone); | 1507 StackFrame* frame = AllocateFrameCopy(it.frame(), zone); |
1507 list.Add(frame, zone); | 1508 list.Add(frame, zone); |
1508 } | 1509 } |
1509 return list.ToVector(); | 1510 return list.ToVector(); |
1510 } | 1511 } |
1511 | 1512 |
1512 | 1513 |
1513 } } // namespace v8::internal | 1514 } } // namespace v8::internal |
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