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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 "v8.h" | 5 #include "v8.h" |
| 6 | 6 |
| 7 #if V8_TARGET_ARCH_X64 | 7 #if V8_TARGET_ARCH_X64 |
| 8 | 8 |
| 9 #include "assembler.h" | 9 #include "assembler.h" |
| 10 #include "codegen.h" | 10 #include "codegen.h" |
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| 58 debug_info_->GetIsolate()->builtins()->Slot_DebugBreak()->entry(), | 58 debug_info_->GetIsolate()->builtins()->Slot_DebugBreak()->entry(), |
| 59 Assembler::kDebugBreakSlotLength - Assembler::kCallSequenceLength); | 59 Assembler::kDebugBreakSlotLength - Assembler::kCallSequenceLength); |
| 60 } | 60 } |
| 61 | 61 |
| 62 | 62 |
| 63 void BreakLocationIterator::ClearDebugBreakAtSlot() { | 63 void BreakLocationIterator::ClearDebugBreakAtSlot() { |
| 64 ASSERT(IsDebugBreakSlot()); | 64 ASSERT(IsDebugBreakSlot()); |
| 65 rinfo()->PatchCode(original_rinfo()->pc(), Assembler::kDebugBreakSlotLength); | 65 rinfo()->PatchCode(original_rinfo()->pc(), Assembler::kDebugBreakSlotLength); |
| 66 } | 66 } |
| 67 | 67 |
| 68 const bool Debug::FramePaddingLayout::kIsSupported = true; | |
| 69 | |
| 70 | 68 |
| 71 #define __ ACCESS_MASM(masm) | 69 #define __ ACCESS_MASM(masm) |
| 72 | 70 |
| 73 | 71 |
| 74 static void Generate_DebugBreakCallHelper(MacroAssembler* masm, | 72 static void Generate_DebugBreakCallHelper(MacroAssembler* masm, |
| 75 RegList object_regs, | 73 RegList object_regs, |
| 76 RegList non_object_regs, | 74 RegList non_object_regs, |
| 77 bool convert_call_to_jmp) { | 75 bool convert_call_to_jmp) { |
| 78 // Enter an internal frame. | 76 // Enter an internal frame. |
| 79 { | 77 { |
| 80 FrameScope scope(masm, StackFrame::INTERNAL); | 78 FrameScope scope(masm, StackFrame::INTERNAL); |
| 81 | 79 |
| 82 // Load padding words on stack. | 80 // Load padding words on stack. |
| 83 for (int i = 0; i < Debug::FramePaddingLayout::kInitialSize; i++) { | 81 for (int i = 0; i < LiveEdit::kFramePaddingInitialSize; i++) { |
| 84 __ Push(Smi::FromInt(Debug::FramePaddingLayout::kPaddingValue)); | 82 __ Push(Smi::FromInt(LiveEdit::kFramePaddingValue)); |
| 85 } | 83 } |
| 86 __ Push(Smi::FromInt(Debug::FramePaddingLayout::kInitialSize)); | 84 __ Push(Smi::FromInt(LiveEdit::kFramePaddingInitialSize)); |
| 87 | 85 |
| 88 // Store the registers containing live values on the expression stack to | 86 // Store the registers containing live values on the expression stack to |
| 89 // make sure that these are correctly updated during GC. Non object values | 87 // make sure that these are correctly updated during GC. Non object values |
| 90 // are stored as as two smis causing it to be untouched by GC. | 88 // are stored as as two smis causing it to be untouched by GC. |
| 91 ASSERT((object_regs & ~kJSCallerSaved) == 0); | 89 ASSERT((object_regs & ~kJSCallerSaved) == 0); |
| 92 ASSERT((non_object_regs & ~kJSCallerSaved) == 0); | 90 ASSERT((non_object_regs & ~kJSCallerSaved) == 0); |
| 93 ASSERT((object_regs & non_object_regs) == 0); | 91 ASSERT((object_regs & non_object_regs) == 0); |
| 94 for (int i = 0; i < kNumJSCallerSaved; i++) { | 92 for (int i = 0; i < kNumJSCallerSaved; i++) { |
| 95 int r = JSCallerSavedCode(i); | 93 int r = JSCallerSavedCode(i); |
| 96 Register reg = { r }; | 94 Register reg = { r }; |
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| 302 | 300 |
| 303 // Get function code. | 301 // Get function code. |
| 304 __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); | 302 __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 305 __ movp(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset)); | 303 __ movp(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset)); |
| 306 __ leap(rdx, FieldOperand(rdx, Code::kHeaderSize)); | 304 __ leap(rdx, FieldOperand(rdx, Code::kHeaderSize)); |
| 307 | 305 |
| 308 // Re-run JSFunction, rdi is function, rsi is context. | 306 // Re-run JSFunction, rdi is function, rsi is context. |
| 309 __ jmp(rdx); | 307 __ jmp(rdx); |
| 310 } | 308 } |
| 311 | 309 |
| 312 const bool Debug::kFrameDropperSupported = true; | 310 const bool LiveEdit::kFrameDropperSupported = true; |
| 313 | 311 |
| 314 #undef __ | 312 #undef __ |
| 315 | 313 |
| 316 } } // namespace v8::internal | 314 } } // namespace v8::internal |
| 317 | 315 |
| 318 #endif // V8_TARGET_ARCH_X64 | 316 #endif // V8_TARGET_ARCH_X64 |
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