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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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| 125 } | 125 } |
| 126 if ((non_object_regs & (1 << r)) != 0) { | 126 if ((non_object_regs & (1 << r)) != 0) { |
| 127 __ PushInt64AsTwoSmis(reg); | 127 __ PushInt64AsTwoSmis(reg); |
| 128 } | 128 } |
| 129 } | 129 } |
| 130 | 130 |
| 131 #ifdef DEBUG | 131 #ifdef DEBUG |
| 132 __ RecordComment("// Calling from debug break to runtime - come in - over"); | 132 __ RecordComment("// Calling from debug break to runtime - come in - over"); |
| 133 #endif | 133 #endif |
| 134 __ Set(rax, 0); // No arguments (argc == 0). | 134 __ Set(rax, 0); // No arguments (argc == 0). |
| 135 __ movq(rbx, ExternalReference::debug_break(masm->isolate())); | 135 __ Move(rbx, ExternalReference::debug_break(masm->isolate())); |
| 136 | 136 |
| 137 CEntryStub ceb(1); | 137 CEntryStub ceb(1); |
| 138 __ CallStub(&ceb); | 138 __ CallStub(&ceb); |
| 139 | 139 |
| 140 // Restore the register values from the expression stack. | 140 // Restore the register values from the expression stack. |
| 141 for (int i = kNumJSCallerSaved - 1; i >= 0; i--) { | 141 for (int i = kNumJSCallerSaved - 1; i >= 0; i--) { |
| 142 int r = JSCallerSavedCode(i); | 142 int r = JSCallerSavedCode(i); |
| 143 Register reg = { r }; | 143 Register reg = { r }; |
| 144 if (FLAG_debug_code) { | 144 if (FLAG_debug_code) { |
| 145 __ Set(reg, kDebugZapValue); | 145 __ Set(reg, kDebugZapValue); |
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| 165 // be an unwanted return address left on the stack. Here we get rid of that. | 165 // be an unwanted return address left on the stack. Here we get rid of that. |
| 166 if (convert_call_to_jmp) { | 166 if (convert_call_to_jmp) { |
| 167 __ addq(rsp, Immediate(kPointerSize)); | 167 __ addq(rsp, Immediate(kPointerSize)); |
| 168 } | 168 } |
| 169 | 169 |
| 170 // Now that the break point has been handled, resume normal execution by | 170 // Now that the break point has been handled, resume normal execution by |
| 171 // jumping to the target address intended by the caller and that was | 171 // jumping to the target address intended by the caller and that was |
| 172 // overwritten by the address of DebugBreakXXX. | 172 // overwritten by the address of DebugBreakXXX. |
| 173 ExternalReference after_break_target = | 173 ExternalReference after_break_target = |
| 174 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); | 174 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); |
| 175 __ movq(kScratchRegister, after_break_target); | 175 __ Move(kScratchRegister, after_break_target); |
| 176 __ jmp(Operand(kScratchRegister, 0)); | 176 __ jmp(Operand(kScratchRegister, 0)); |
| 177 } | 177 } |
| 178 | 178 |
| 179 | 179 |
| 180 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { | 180 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { |
| 181 // Register state for IC load call (from ic-x64.cc). | 181 // Register state for IC load call (from ic-x64.cc). |
| 182 // ----------- S t a t e ------------- | 182 // ----------- S t a t e ------------- |
| 183 // -- rax : receiver | 183 // -- rax : receiver |
| 184 // -- rcx : name | 184 // -- rcx : name |
| 185 // ----------------------------------- | 185 // ----------------------------------- |
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| 312 | 312 |
| 313 void Debug::GeneratePlainReturnLiveEdit(MacroAssembler* masm) { | 313 void Debug::GeneratePlainReturnLiveEdit(MacroAssembler* masm) { |
| 314 masm->ret(0); | 314 masm->ret(0); |
| 315 } | 315 } |
| 316 | 316 |
| 317 | 317 |
| 318 void Debug::GenerateFrameDropperLiveEdit(MacroAssembler* masm) { | 318 void Debug::GenerateFrameDropperLiveEdit(MacroAssembler* masm) { |
| 319 ExternalReference restarter_frame_function_slot = | 319 ExternalReference restarter_frame_function_slot = |
| 320 ExternalReference(Debug_Address::RestarterFrameFunctionPointer(), | 320 ExternalReference(Debug_Address::RestarterFrameFunctionPointer(), |
| 321 masm->isolate()); | 321 masm->isolate()); |
| 322 __ movq(rax, restarter_frame_function_slot); | 322 __ Move(rax, restarter_frame_function_slot); |
| 323 __ movq(Operand(rax, 0), Immediate(0)); | 323 __ movq(Operand(rax, 0), Immediate(0)); |
| 324 | 324 |
| 325 // We do not know our frame height, but set rsp based on rbp. | 325 // We do not know our frame height, but set rsp based on rbp. |
| 326 __ lea(rsp, Operand(rbp, -1 * kPointerSize)); | 326 __ lea(rsp, Operand(rbp, -1 * kPointerSize)); |
| 327 | 327 |
| 328 __ pop(rdi); // Function. | 328 __ pop(rdi); // Function. |
| 329 __ pop(rbp); | 329 __ pop(rbp); |
| 330 | 330 |
| 331 // Load context from the function. | 331 // Load context from the function. |
| 332 __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); | 332 __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 333 | 333 |
| 334 // Get function code. | 334 // Get function code. |
| 335 __ movq(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); | 335 __ movq(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
| 336 __ movq(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset)); | 336 __ movq(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset)); |
| 337 __ lea(rdx, FieldOperand(rdx, Code::kHeaderSize)); | 337 __ lea(rdx, FieldOperand(rdx, Code::kHeaderSize)); |
| 338 | 338 |
| 339 // Re-run JSFunction, rdi is function, rsi is context. | 339 // Re-run JSFunction, rdi is function, rsi is context. |
| 340 __ jmp(rdx); | 340 __ jmp(rdx); |
| 341 } | 341 } |
| 342 | 342 |
| 343 const bool Debug::kFrameDropperSupported = true; | 343 const bool Debug::kFrameDropperSupported = true; |
| 344 | 344 |
| 345 #undef __ | 345 #undef __ |
| 346 | 346 |
| 347 #endif // ENABLE_DEBUGGER_SUPPORT | 347 #endif // ENABLE_DEBUGGER_SUPPORT |
| 348 | 348 |
| 349 } } // namespace v8::internal | 349 } } // namespace v8::internal |
| 350 | 350 |
| 351 #endif // V8_TARGET_ARCH_X64 | 351 #endif // V8_TARGET_ARCH_X64 |
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