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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 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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739 // Store resume mode into generator object. | 739 // Store resume mode into generator object. |
740 __ sd(a2, FieldMemOperand(a1, JSGeneratorObject::kResumeModeOffset)); | 740 __ sd(a2, FieldMemOperand(a1, JSGeneratorObject::kResumeModeOffset)); |
741 | 741 |
742 // Load suspended function and context. | 742 // Load suspended function and context. |
743 __ ld(cp, FieldMemOperand(a1, JSGeneratorObject::kContextOffset)); | 743 __ ld(cp, FieldMemOperand(a1, JSGeneratorObject::kContextOffset)); |
744 __ ld(a4, FieldMemOperand(a1, JSGeneratorObject::kFunctionOffset)); | 744 __ ld(a4, FieldMemOperand(a1, JSGeneratorObject::kFunctionOffset)); |
745 | 745 |
746 // Flood function if we are stepping. | 746 // Flood function if we are stepping. |
747 Label prepare_step_in_if_stepping, prepare_step_in_suspended_generator; | 747 Label prepare_step_in_if_stepping, prepare_step_in_suspended_generator; |
748 Label stepping_prepared; | 748 Label stepping_prepared; |
749 ExternalReference last_step_action = | 749 ExternalReference debug_hook = |
750 ExternalReference::debug_last_step_action_address(masm->isolate()); | 750 ExternalReference::debug_hook_on_function_call_address(masm->isolate()); |
751 STATIC_ASSERT(StepFrame > StepIn); | 751 __ li(a5, Operand(debug_hook)); |
752 __ li(a5, Operand(last_step_action)); | |
753 __ lb(a5, MemOperand(a5)); | 752 __ lb(a5, MemOperand(a5)); |
754 __ Branch(&prepare_step_in_if_stepping, ge, a5, Operand(StepIn)); | 753 __ Branch(&prepare_step_in_if_stepping, ne, a5, Operand(zero_reg)); |
755 | 754 |
756 // Flood function if we need to continue stepping in the suspended generator. | 755 // Flood function if we need to continue stepping in the suspended generator. |
757 ExternalReference debug_suspended_generator = | 756 ExternalReference debug_suspended_generator = |
758 ExternalReference::debug_suspended_generator_address(masm->isolate()); | 757 ExternalReference::debug_suspended_generator_address(masm->isolate()); |
759 __ li(a5, Operand(debug_suspended_generator)); | 758 __ li(a5, Operand(debug_suspended_generator)); |
760 __ ld(a5, MemOperand(a5)); | 759 __ ld(a5, MemOperand(a5)); |
761 __ Branch(&prepare_step_in_suspended_generator, eq, a1, Operand(a5)); | 760 __ Branch(&prepare_step_in_suspended_generator, eq, a1, Operand(a5)); |
762 __ bind(&stepping_prepared); | 761 __ bind(&stepping_prepared); |
763 | 762 |
764 // Push receiver. | 763 // Push receiver. |
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810 __ Move(a3, a1); | 809 __ Move(a3, a1); |
811 __ Move(a1, a4); | 810 __ Move(a1, a4); |
812 __ ld(a2, FieldMemOperand(a1, JSFunction::kCodeEntryOffset)); | 811 __ ld(a2, FieldMemOperand(a1, JSFunction::kCodeEntryOffset)); |
813 __ Jump(a2); | 812 __ Jump(a2); |
814 } | 813 } |
815 | 814 |
816 __ bind(&prepare_step_in_if_stepping); | 815 __ bind(&prepare_step_in_if_stepping); |
817 { | 816 { |
818 FrameScope scope(masm, StackFrame::INTERNAL); | 817 FrameScope scope(masm, StackFrame::INTERNAL); |
819 __ Push(a1, a2, a4); | 818 __ Push(a1, a2, a4); |
820 __ CallRuntime(Runtime::kDebugPrepareStepInIfStepping); | 819 __ CallRuntime(Runtime::kDebugOnFunctionCall); |
821 __ Pop(a1, a2); | 820 __ Pop(a1, a2); |
822 } | 821 } |
823 __ Branch(USE_DELAY_SLOT, &stepping_prepared); | 822 __ Branch(USE_DELAY_SLOT, &stepping_prepared); |
824 __ ld(a4, FieldMemOperand(a1, JSGeneratorObject::kFunctionOffset)); | 823 __ ld(a4, FieldMemOperand(a1, JSGeneratorObject::kFunctionOffset)); |
825 | 824 |
826 __ bind(&prepare_step_in_suspended_generator); | 825 __ bind(&prepare_step_in_suspended_generator); |
827 { | 826 { |
828 FrameScope scope(masm, StackFrame::INTERNAL); | 827 FrameScope scope(masm, StackFrame::INTERNAL); |
829 __ Push(a1, a2); | 828 __ Push(a1, a2); |
830 __ CallRuntime(Runtime::kDebugPrepareStepInSuspendedGenerator); | 829 __ CallRuntime(Runtime::kDebugPrepareStepInSuspendedGenerator); |
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2997 __ break_(0xCC); | 2996 __ break_(0xCC); |
2998 } | 2997 } |
2999 } | 2998 } |
3000 | 2999 |
3001 #undef __ | 3000 #undef __ |
3002 | 3001 |
3003 } // namespace internal | 3002 } // namespace internal |
3004 } // namespace v8 | 3003 } // namespace v8 |
3005 | 3004 |
3006 #endif // V8_TARGET_ARCH_MIPS64 | 3005 #endif // V8_TARGET_ARCH_MIPS64 |
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