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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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122 __ sar(kScratchRegister, Immediate(32)); | 122 __ sar(kScratchRegister, Immediate(32)); |
123 __ Integer32ToSmi(kScratchRegister, kScratchRegister); | 123 __ Integer32ToSmi(kScratchRegister, kScratchRegister); |
124 __ push(kScratchRegister); | 124 __ push(kScratchRegister); |
125 } | 125 } |
126 } | 126 } |
127 | 127 |
128 #ifdef DEBUG | 128 #ifdef DEBUG |
129 __ RecordComment("// Calling from debug break to runtime - come in - over"); | 129 __ RecordComment("// Calling from debug break to runtime - come in - over"); |
130 #endif | 130 #endif |
131 __ Set(rax, 0); // No arguments (argc == 0). | 131 __ Set(rax, 0); // No arguments (argc == 0). |
132 __ movq(rbx, ExternalReference::debug_break()); | 132 __ movq(rbx, ExternalReference::debug_break(masm->isolate())); |
133 | 133 |
134 CEntryStub ceb(1); | 134 CEntryStub ceb(1); |
135 __ CallStub(&ceb); | 135 __ CallStub(&ceb); |
136 | 136 |
137 // Restore the register values from the expression stack. | 137 // Restore the register values from the expression stack. |
138 for (int i = kNumJSCallerSaved - 1; i >= 0; i--) { | 138 for (int i = kNumJSCallerSaved - 1; i >= 0; i--) { |
139 int r = JSCallerSavedCode(i); | 139 int r = JSCallerSavedCode(i); |
140 Register reg = { r }; | 140 Register reg = { r }; |
141 if (FLAG_debug_code) { | 141 if (FLAG_debug_code) { |
142 __ Set(reg, kDebugZapValue); | 142 __ Set(reg, kDebugZapValue); |
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161 // If this call did not replace a call but patched other code then there will | 161 // If this call did not replace a call but patched other code then there will |
162 // be an unwanted return address left on the stack. Here we get rid of that. | 162 // be an unwanted return address left on the stack. Here we get rid of that. |
163 if (convert_call_to_jmp) { | 163 if (convert_call_to_jmp) { |
164 __ addq(rsp, Immediate(kPointerSize)); | 164 __ addq(rsp, Immediate(kPointerSize)); |
165 } | 165 } |
166 | 166 |
167 // Now that the break point has been handled, resume normal execution by | 167 // Now that the break point has been handled, resume normal execution by |
168 // jumping to the target address intended by the caller and that was | 168 // jumping to the target address intended by the caller and that was |
169 // overwritten by the address of DebugBreakXXX. | 169 // overwritten by the address of DebugBreakXXX. |
170 ExternalReference after_break_target = | 170 ExternalReference after_break_target = |
171 ExternalReference(Debug_Address::AfterBreakTarget()); | 171 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); |
172 __ movq(kScratchRegister, after_break_target); | 172 __ movq(kScratchRegister, after_break_target); |
173 __ jmp(Operand(kScratchRegister, 0)); | 173 __ jmp(Operand(kScratchRegister, 0)); |
174 } | 174 } |
175 | 175 |
176 | 176 |
177 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { | 177 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { |
178 // Register state for IC load call (from ic-x64.cc). | 178 // Register state for IC load call (from ic-x64.cc). |
179 // ----------- S t a t e ------------- | 179 // ----------- S t a t e ------------- |
180 // -- rax : receiver | 180 // -- rax : receiver |
181 // -- rcx : name | 181 // -- rcx : name |
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277 } | 277 } |
278 | 278 |
279 | 279 |
280 void Debug::GeneratePlainReturnLiveEdit(MacroAssembler* masm) { | 280 void Debug::GeneratePlainReturnLiveEdit(MacroAssembler* masm) { |
281 masm->ret(0); | 281 masm->ret(0); |
282 } | 282 } |
283 | 283 |
284 | 284 |
285 void Debug::GenerateFrameDropperLiveEdit(MacroAssembler* masm) { | 285 void Debug::GenerateFrameDropperLiveEdit(MacroAssembler* masm) { |
286 ExternalReference restarter_frame_function_slot = | 286 ExternalReference restarter_frame_function_slot = |
287 ExternalReference(Debug_Address::RestarterFrameFunctionPointer()); | 287 ExternalReference(Debug_Address::RestarterFrameFunctionPointer(), |
| 288 masm->isolate()); |
288 __ movq(rax, restarter_frame_function_slot); | 289 __ movq(rax, restarter_frame_function_slot); |
289 __ movq(Operand(rax, 0), Immediate(0)); | 290 __ movq(Operand(rax, 0), Immediate(0)); |
290 | 291 |
291 // We do not know our frame height, but set rsp based on rbp. | 292 // We do not know our frame height, but set rsp based on rbp. |
292 __ lea(rsp, Operand(rbp, -1 * kPointerSize)); | 293 __ lea(rsp, Operand(rbp, -1 * kPointerSize)); |
293 | 294 |
294 __ pop(rdi); // Function. | 295 __ pop(rdi); // Function. |
295 __ pop(rbp); | 296 __ pop(rbp); |
296 | 297 |
297 // Load context from the function. | 298 // Load context from the function. |
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308 | 309 |
309 const bool Debug::kFrameDropperSupported = true; | 310 const bool Debug::kFrameDropperSupported = true; |
310 | 311 |
311 #undef __ | 312 #undef __ |
312 | 313 |
313 #endif // ENABLE_DEBUGGER_SUPPORT | 314 #endif // ENABLE_DEBUGGER_SUPPORT |
314 | 315 |
315 } } // namespace v8::internal | 316 } } // namespace v8::internal |
316 | 317 |
317 #endif // V8_TARGET_ARCH_X64 | 318 #endif // V8_TARGET_ARCH_X64 |
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