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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 | 9 |
| 10 namespace v8 { | 10 namespace v8 { |
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| 33 | 33 |
| 34 | 34 |
| 35 void DebugCodegen::ClearDebugBreakSlot(Isolate* isolate, Address pc) { | 35 void DebugCodegen::ClearDebugBreakSlot(Isolate* isolate, Address pc) { |
| 36 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); | 36 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); |
| 37 EmitDebugBreakSlot(patcher.masm()); | 37 EmitDebugBreakSlot(patcher.masm()); |
| 38 } | 38 } |
| 39 | 39 |
| 40 | 40 |
| 41 void DebugCodegen::PatchDebugBreakSlot(Isolate* isolate, Address pc, | 41 void DebugCodegen::PatchDebugBreakSlot(Isolate* isolate, Address pc, |
| 42 Handle<Code> code) { | 42 Handle<Code> code) { |
| 43 DCHECK_EQ(Code::BUILTIN, code->kind()); | 43 DCHECK(code->is_debug_stub()); |
| 44 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); | 44 CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotInstructions); |
| 45 // Patch the code changing the debug break slot code from: | 45 // Patch the code changing the debug break slot code from: |
| 46 // nop(DEBUG_BREAK_NOP) - nop(1) is sll(zero_reg, zero_reg, 1) | 46 // nop(DEBUG_BREAK_NOP) - nop(1) is sll(zero_reg, zero_reg, 1) |
| 47 // nop(DEBUG_BREAK_NOP) | 47 // nop(DEBUG_BREAK_NOP) |
| 48 // nop(DEBUG_BREAK_NOP) | 48 // nop(DEBUG_BREAK_NOP) |
| 49 // nop(DEBUG_BREAK_NOP) | 49 // nop(DEBUG_BREAK_NOP) |
| 50 // nop(DEBUG_BREAK_NOP) | 50 // nop(DEBUG_BREAK_NOP) |
| 51 // nop(DEBUG_BREAK_NOP) | 51 // nop(DEBUG_BREAK_NOP) |
| 52 // to a call to the debug break slot code. | 52 // to a call to the debug break slot code. |
| 53 // li t9, address (4-instruction sequence on mips64) | 53 // li t9, address (4-instruction sequence on mips64) |
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| 149 | 149 |
| 150 | 150 |
| 151 const bool LiveEdit::kFrameDropperSupported = true; | 151 const bool LiveEdit::kFrameDropperSupported = true; |
| 152 | 152 |
| 153 #undef __ | 153 #undef __ |
| 154 | 154 |
| 155 } // namespace internal | 155 } // namespace internal |
| 156 } // namespace v8 | 156 } // namespace v8 |
| 157 | 157 |
| 158 #endif // V8_TARGET_ARCH_MIPS64 | 158 #endif // V8_TARGET_ARCH_MIPS64 |
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