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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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| 322 // ------------------------------------------------------------------------- | 322 // ------------------------------------------------------------------------- |
| 323 | 323 |
| 324 | 324 |
| 325 bool StackFrame::HasHandler() const { | 325 bool StackFrame::HasHandler() const { |
| 326 StackHandlerIterator it(this, top_handler()); | 326 StackHandlerIterator it(this, top_handler()); |
| 327 return !it.done(); | 327 return !it.done(); |
| 328 } | 328 } |
| 329 | 329 |
| 330 | 330 |
| 331 void StackFrame::CookFramesForThread(ThreadLocalTop* thread) { | 331 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()); | 332 ASSERT(!thread->stack_is_cooked()); |
| 336 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { | 333 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { |
| 337 it.frame()->Cook(); | 334 it.frame()->Cook(); |
| 338 } | 335 } |
| 339 thread->set_stack_is_cooked(true); | 336 thread->set_stack_is_cooked(true); |
| 340 } | 337 } |
| 341 | 338 |
| 342 | 339 |
| 343 void StackFrame::UncookFramesForThread(ThreadLocalTop* thread) { | 340 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()); | 341 ASSERT(thread->stack_is_cooked()); |
| 348 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { | 342 for (StackFrameIterator it(thread); !it.done(); it.Advance()) { |
| 349 it.frame()->Uncook(); | 343 it.frame()->Uncook(); |
| 350 } | 344 } |
| 351 thread->set_stack_is_cooked(false); | 345 thread->set_stack_is_cooked(false); |
| 352 } | 346 } |
| 353 | 347 |
| 354 | 348 |
| 355 void StackFrame::Cook() { | 349 void StackFrame::Cook() { |
| 356 Code* code = this->code(); | 350 Code* code = this->code(); |
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| 767 reg_code[i++] = r; | 761 reg_code[i++] = r; |
| 768 | 762 |
| 769 ASSERT(i == kNumJSCallerSaved); | 763 ASSERT(i == kNumJSCallerSaved); |
| 770 } | 764 } |
| 771 ASSERT(0 <= n && n < kNumJSCallerSaved); | 765 ASSERT(0 <= n && n < kNumJSCallerSaved); |
| 772 return reg_code[n]; | 766 return reg_code[n]; |
| 773 } | 767 } |
| 774 | 768 |
| 775 | 769 |
| 776 } } // namespace v8::internal | 770 } } // namespace v8::internal |
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