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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_ARM | 5 #if V8_TARGET_ARCH_ARM |
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 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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34 | 34 |
35 | 35 |
36 void DebugCodegen::ClearDebugBreakSlot(Isolate* isolate, Address pc) { | 36 void DebugCodegen::ClearDebugBreakSlot(Isolate* isolate, Address pc) { |
37 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); | 37 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); |
38 EmitDebugBreakSlot(patcher.masm()); | 38 EmitDebugBreakSlot(patcher.masm()); |
39 } | 39 } |
40 | 40 |
41 | 41 |
42 void DebugCodegen::PatchDebugBreakSlot(Isolate* isolate, Address pc, | 42 void DebugCodegen::PatchDebugBreakSlot(Isolate* isolate, Address pc, |
43 Handle<Code> code) { | 43 Handle<Code> code) { |
44 DCHECK_EQ(Code::BUILTIN, code->kind()); | 44 DCHECK(code->is_debug_stub()); |
45 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); | 45 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); |
46 // Patch the code changing the debug break slot code from | 46 // Patch the code changing the debug break slot code from |
47 // mov r2, r2 | 47 // mov r2, r2 |
48 // mov r2, r2 | 48 // mov r2, r2 |
49 // mov r2, r2 | 49 // mov r2, r2 |
50 // mov r2, r2 | 50 // mov r2, r2 |
51 // to a call to the debug break slot code. | 51 // to a call to the debug break slot code. |
52 // ldr ip, [pc, #0] | 52 // ldr ip, [pc, #0] |
53 // b skip | 53 // b skip |
54 // <debug break slot code entry point address> | 54 // <debug break slot code entry point address> |
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155 | 155 |
156 | 156 |
157 const bool LiveEdit::kFrameDropperSupported = true; | 157 const bool LiveEdit::kFrameDropperSupported = true; |
158 | 158 |
159 #undef __ | 159 #undef __ |
160 | 160 |
161 } // namespace internal | 161 } // namespace internal |
162 } // namespace v8 | 162 } // namespace v8 |
163 | 163 |
164 #endif // V8_TARGET_ARCH_ARM | 164 #endif // V8_TARGET_ARCH_ARM |
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