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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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| 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 __ Move(kScratchRegister, after_break_target); | 175 __ Move(kScratchRegister, after_break_target); |
| 176 __ Jump(Operand(kScratchRegister, 0)); | 176 __ Jump(Operand(kScratchRegister, 0)); |
| 177 } | 177 } |
| 178 | 178 |
| 179 | 179 |
| 180 void Debug::GenerateCallICStubDebugBreak(MacroAssembler* masm) { |
| 181 // Register state for CallICStub |
| 182 // ----------- S t a t e ------------- |
| 183 // -- rbx : type feedback vector |
| 184 // -- rdx : type feedback slot (smi) |
| 185 // -- rdi : function |
| 186 // ----------------------------------- |
| 187 Generate_DebugBreakCallHelper(masm, rbx.bit() | rdx.bit() | rdi.bit(), |
| 188 0, false); |
| 189 } |
| 190 |
| 191 |
| 180 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { | 192 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { |
| 181 // Register state for IC load call (from ic-x64.cc). | 193 // Register state for IC load call (from ic-x64.cc). |
| 182 // ----------- S t a t e ------------- | 194 // ----------- S t a t e ------------- |
| 183 // -- rax : receiver | 195 // -- rax : receiver |
| 184 // -- rcx : name | 196 // -- rcx : name |
| 185 // ----------------------------------- | 197 // ----------------------------------- |
| 186 Generate_DebugBreakCallHelper(masm, rax.bit() | rcx.bit(), 0, false); | 198 Generate_DebugBreakCallHelper(masm, rax.bit() | rcx.bit(), 0, false); |
| 187 } | 199 } |
| 188 | 200 |
| 189 | 201 |
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| 223 | 235 |
| 224 void Debug::GenerateCompareNilICDebugBreak(MacroAssembler* masm) { | 236 void Debug::GenerateCompareNilICDebugBreak(MacroAssembler* masm) { |
| 225 // Register state for CompareNil IC | 237 // Register state for CompareNil IC |
| 226 // ----------- S t a t e ------------- | 238 // ----------- S t a t e ------------- |
| 227 // -- rax : value | 239 // -- rax : value |
| 228 // ----------------------------------- | 240 // ----------------------------------- |
| 229 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, false); | 241 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, false); |
| 230 } | 242 } |
| 231 | 243 |
| 232 | 244 |
| 233 void Debug::GenerateCallICDebugBreak(MacroAssembler* masm) { | |
| 234 // Register state for IC call call (from ic-x64.cc) | |
| 235 // ----------- S t a t e ------------- | |
| 236 // -- rcx: function name | |
| 237 // ----------------------------------- | |
| 238 Generate_DebugBreakCallHelper(masm, rcx.bit(), 0, false); | |
| 239 } | |
| 240 | |
| 241 | |
| 242 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) { | 245 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) { |
| 243 // Register state just before return from JS function (from codegen-x64.cc). | 246 // Register state just before return from JS function (from codegen-x64.cc). |
| 244 // ----------- S t a t e ------------- | 247 // ----------- S t a t e ------------- |
| 245 // -- rax: return value | 248 // -- rax: return value |
| 246 // ----------------------------------- | 249 // ----------------------------------- |
| 247 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, true); | 250 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, true); |
| 248 } | 251 } |
| 249 | 252 |
| 250 | 253 |
| 251 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) { | 254 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) { |
| 252 // Register state for CallFunctionStub (from code-stubs-x64.cc). | 255 // Register state for CallFunctionStub (from code-stubs-x64.cc). |
| 253 // ----------- S t a t e ------------- | 256 // ----------- S t a t e ------------- |
| 254 // -- rdi : function | 257 // -- rdi : function |
| 255 // ----------------------------------- | 258 // ----------------------------------- |
| 256 Generate_DebugBreakCallHelper(masm, rdi.bit(), 0, false); | 259 Generate_DebugBreakCallHelper(masm, rdi.bit(), 0, false); |
| 257 } | 260 } |
| 258 | 261 |
| 259 | 262 |
| 260 void Debug::GenerateCallFunctionStubRecordDebugBreak(MacroAssembler* masm) { | |
| 261 // Register state for CallFunctionStub (from code-stubs-x64.cc). | |
| 262 // ----------- S t a t e ------------- | |
| 263 // -- rdi : function | |
| 264 // -- rbx: feedback array | |
| 265 // -- rdx: slot in feedback array | |
| 266 // ----------------------------------- | |
| 267 Generate_DebugBreakCallHelper(masm, rbx.bit() | rdx.bit() | rdi.bit(), | |
| 268 0, false); | |
| 269 } | |
| 270 | |
| 271 | |
| 272 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) { | 263 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) { |
| 273 // Register state for CallConstructStub (from code-stubs-x64.cc). | 264 // Register state for CallConstructStub (from code-stubs-x64.cc). |
| 274 // rax is the actual number of arguments not encoded as a smi, see comment | 265 // rax is the actual number of arguments not encoded as a smi, see comment |
| 275 // above IC call. | 266 // above IC call. |
| 276 // ----------- S t a t e ------------- | 267 // ----------- S t a t e ------------- |
| 277 // -- rax: number of arguments | 268 // -- rax: number of arguments |
| 278 // ----------------------------------- | 269 // ----------------------------------- |
| 279 // The number of arguments in rax is not smi encoded. | 270 // The number of arguments in rax is not smi encoded. |
| 280 Generate_DebugBreakCallHelper(masm, rdi.bit(), rax.bit(), false); | 271 Generate_DebugBreakCallHelper(masm, rdi.bit(), rax.bit(), false); |
| 281 } | 272 } |
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| 346 | 337 |
| 347 const bool Debug::kFrameDropperSupported = true; | 338 const bool Debug::kFrameDropperSupported = true; |
| 348 | 339 |
| 349 #undef __ | 340 #undef __ |
| 350 | 341 |
| 351 #endif // ENABLE_DEBUGGER_SUPPORT | 342 #endif // ENABLE_DEBUGGER_SUPPORT |
| 352 | 343 |
| 353 } } // namespace v8::internal | 344 } } // namespace v8::internal |
| 354 | 345 |
| 355 #endif // V8_TARGET_ARCH_X64 | 346 #endif // V8_TARGET_ARCH_X64 |
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