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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 299 if (frame()->is_java_script()) return; | 299 if (frame()->is_java_script()) return; |
| 300 } | 300 } |
| 301 } | 301 } |
| 302 #endif | 302 #endif |
| 303 | 303 |
| 304 | 304 |
| 305 // ------------------------------------------------------------------------- | 305 // ------------------------------------------------------------------------- |
| 306 | 306 |
| 307 | 307 |
| 308 void StackHandler::Cook(Code* code) { | 308 void StackHandler::Cook(Code* code) { |
| 309 ASSERT(MarkCompactCollector::IsCompacting()); | |
| 310 ASSERT(code->contains(pc())); | 309 ASSERT(code->contains(pc())); |
| 311 set_pc(AddressFrom<Address>(pc() - code->instruction_start())); | 310 set_pc(AddressFrom<Address>(pc() - code->instruction_start())); |
| 312 } | 311 } |
| 313 | 312 |
| 314 | 313 |
| 315 void StackHandler::Uncook(Code* code) { | 314 void StackHandler::Uncook(Code* code) { |
| 316 ASSERT(MarkCompactCollector::HasCompacted()); | |
| 317 set_pc(code->instruction_start() + OffsetFrom(pc())); | 315 set_pc(code->instruction_start() + OffsetFrom(pc())); |
| 318 ASSERT(code->contains(pc())); | 316 ASSERT(code->contains(pc())); |
| 319 } | 317 } |
| 320 | 318 |
| 321 | 319 |
| 322 // ------------------------------------------------------------------------- | 320 // ------------------------------------------------------------------------- |
| 323 | 321 |
| 324 | 322 |
| 325 bool StackFrame::HasHandler() const { | 323 bool StackFrame::HasHandler() const { |
| 326 StackHandlerIterator it(this, top_handler()); | 324 StackHandlerIterator it(this, top_handler()); |
| 327 return !it.done(); | 325 return !it.done(); |
| 328 } | 326 } |
| 329 | 327 |
| 330 | 328 |
| 331 void StackFrame::CookFramesForThread(ThreadLocalTop* thread) { | 329 void StackFrame::CookFramesForThread(ThreadLocalTop* thread) { |
| 332 // Only cooking frames when the collector is compacting and thus moving code | |
| 333 // around. | |
| 334 ASSERT(MarkCompactCollector::IsCompacting()); | |
| 335 ASSERT(!thread->stack_is_cooked()); | 330 ASSERT(!thread->stack_is_cooked()); |
| 336 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { | 331 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { |
| 337 it.frame()->Cook(); | 332 it.frame()->Cook(); |
| 338 } | 333 } |
| 339 thread->set_stack_is_cooked(true); | 334 thread->set_stack_is_cooked(true); |
| 340 } | 335 } |
| 341 | 336 |
| 342 | 337 |
| 343 void StackFrame::UncookFramesForThread(ThreadLocalTop* thread) { | 338 void StackFrame::UncookFramesForThread(ThreadLocalTop* thread) { |
| 344 // Only uncooking frames when the collector is compacting and thus moving code | |
| 345 // around. | |
| 346 ASSERT(MarkCompactCollector::HasCompacted()); | |
| 347 ASSERT(thread->stack_is_cooked()); | 339 ASSERT(thread->stack_is_cooked()); |
| 348 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { | 340 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { |
| 349 it.frame()->Uncook(); | 341 it.frame()->Uncook(); |
| 350 } | 342 } |
| 351 thread->set_stack_is_cooked(false); | 343 thread->set_stack_is_cooked(false); |
| 352 } | 344 } |
| 353 | 345 |
| 354 | 346 |
| 355 void StackFrame::Cook() { | 347 void StackFrame::Cook() { |
| 356 Code* code = this->code(); | 348 Code* code = this->code(); |
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| 515 int index) const { | 507 int index) const { |
| 516 HandleScope scope; | 508 HandleScope scope; |
| 517 Object* receiver = this->receiver(); | 509 Object* receiver = this->receiver(); |
| 518 Object* function = this->function(); | 510 Object* function = this->function(); |
| 519 | 511 |
| 520 accumulator->PrintSecurityTokenIfChanged(function); | 512 accumulator->PrintSecurityTokenIfChanged(function); |
| 521 PrintIndex(accumulator, mode, index); | 513 PrintIndex(accumulator, mode, index); |
| 522 Code* code = NULL; | 514 Code* code = NULL; |
| 523 if (IsConstructor()) accumulator->Add("new "); | 515 if (IsConstructor()) accumulator->Add("new "); |
| 524 accumulator->PrintFunction(function, receiver, &code); | 516 accumulator->PrintFunction(function, receiver, &code); |
| 517 |
| 518 if (function->IsJSFunction()) { |
| 519 Handle<SharedFunctionInfo> shared(JSFunction::cast(function)->shared()); |
| 520 Object* script_obj = shared->script(); |
| 521 if (script_obj->IsScript()) { |
| 522 Handle<Script> script(Script::cast(script_obj)); |
| 523 accumulator->Add(" ["); |
| 524 accumulator->PrintName(script->name()); |
| 525 |
| 526 Address pc = this->pc(); |
| 527 if (code != NULL && code->kind() == Code::FUNCTION && |
| 528 pc >= code->instruction_start() && pc < code->relocation_start()) { |
| 529 int source_pos = code->SourcePosition(pc); |
| 530 int line = GetScriptLineNumberSafe(script, source_pos) + 1; |
| 531 accumulator->Add(":%d", line); |
| 532 } else { |
| 533 int function_start_pos = shared->start_position(); |
| 534 int line = GetScriptLineNumberSafe(script, function_start_pos) + 1; |
| 535 accumulator->Add(":~%d", line); |
| 536 } |
| 537 |
| 538 accumulator->Add("] "); |
| 539 } |
| 540 } |
| 541 |
| 525 accumulator->Add("(this=%o", receiver); | 542 accumulator->Add("(this=%o", receiver); |
| 526 | 543 |
| 527 // Get scope information for nicer output, if possible. If code is | 544 // Get scope information for nicer output, if possible. If code is |
| 528 // NULL, or doesn't contain scope info, info will return 0 for the | 545 // NULL, or doesn't contain scope info, info will return 0 for the |
| 529 // number of parameters, stack slots, or context slots. | 546 // number of parameters, stack slots, or context slots. |
| 530 ScopeInfo<PreallocatedStorage> info(code); | 547 ScopeInfo<PreallocatedStorage> info(code); |
| 531 | 548 |
| 532 // Print the parameters. | 549 // Print the parameters. |
| 533 int parameters_count = ComputeParametersCount(); | 550 int parameters_count = ComputeParametersCount(); |
| 534 for (int i = 0; i < parameters_count; i++) { | 551 for (int i = 0; i < parameters_count; i++) { |
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| 744 reg_code[i++] = r; | 761 reg_code[i++] = r; |
| 745 | 762 |
| 746 ASSERT(i == kNumJSCallerSaved); | 763 ASSERT(i == kNumJSCallerSaved); |
| 747 } | 764 } |
| 748 ASSERT(0 <= n && n < kNumJSCallerSaved); | 765 ASSERT(0 <= n && n < kNumJSCallerSaved); |
| 749 return reg_code[n]; | 766 return reg_code[n]; |
| 750 } | 767 } |
| 751 | 768 |
| 752 | 769 |
| 753 } } // namespace v8::internal | 770 } } // namespace v8::internal |
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