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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/execution.h" | 5 #include "src/execution.h" |
| 6 | 6 |
| 7 #include "src/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
| 8 #include "src/codegen.h" | 8 #include "src/codegen.h" |
| 9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
| 10 #include "src/isolate-inl.h" | 10 #include "src/isolate-inl.h" |
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| 436 real_climit_ = kIllegalLimit; | 436 real_climit_ = kIllegalLimit; |
| 437 climit_ = kIllegalLimit; | 437 climit_ = kIllegalLimit; |
| 438 postpone_interrupts_ = NULL; | 438 postpone_interrupts_ = NULL; |
| 439 interrupt_flags_ = 0; | 439 interrupt_flags_ = 0; |
| 440 } | 440 } |
| 441 | 441 |
| 442 | 442 |
| 443 bool StackGuard::ThreadLocal::Initialize(Isolate* isolate) { | 443 bool StackGuard::ThreadLocal::Initialize(Isolate* isolate) { |
| 444 bool should_set_stack_limits = false; | 444 bool should_set_stack_limits = false; |
| 445 if (real_climit_ == kIllegalLimit) { | 445 if (real_climit_ == kIllegalLimit) { |
| 446 // Takes the address of the limit variable in order to find out where | |
| 447 // the top of stack is right now. | |
| 448 const uintptr_t kLimitSize = FLAG_stack_size * KB; | 446 const uintptr_t kLimitSize = FLAG_stack_size * KB; |
| 449 uintptr_t limit = reinterpret_cast<uintptr_t>(&limit) - kLimitSize; | 447 ASSERT(GetCurrentStackPosition() > kLimitSize); |
| 450 ASSERT(reinterpret_cast<uintptr_t>(&limit) > kLimitSize); | 448 uintptr_t limit = GetCurrentStackPosition() - kLimitSize; |
| 451 real_jslimit_ = SimulatorStack::JsLimitFromCLimit(isolate, limit); | 449 real_jslimit_ = SimulatorStack::JsLimitFromCLimit(isolate, limit); |
| 452 jslimit_ = SimulatorStack::JsLimitFromCLimit(isolate, limit); | 450 jslimit_ = SimulatorStack::JsLimitFromCLimit(isolate, limit); |
| 453 real_climit_ = limit; | 451 real_climit_ = limit; |
| 454 climit_ = limit; | 452 climit_ = limit; |
| 455 should_set_stack_limits = true; | 453 should_set_stack_limits = true; |
| 456 } | 454 } |
| 457 postpone_interrupts_ = NULL; | 455 postpone_interrupts_ = NULL; |
| 458 interrupt_flags_ = 0; | 456 interrupt_flags_ = 0; |
| 459 return should_set_stack_limits; | 457 return should_set_stack_limits; |
| 460 } | 458 } |
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| 700 } | 698 } |
| 701 | 699 |
| 702 isolate_->counters()->stack_interrupts()->Increment(); | 700 isolate_->counters()->stack_interrupts()->Increment(); |
| 703 isolate_->counters()->runtime_profiler_ticks()->Increment(); | 701 isolate_->counters()->runtime_profiler_ticks()->Increment(); |
| 704 isolate_->runtime_profiler()->OptimizeNow(); | 702 isolate_->runtime_profiler()->OptimizeNow(); |
| 705 | 703 |
| 706 return isolate_->heap()->undefined_value(); | 704 return isolate_->heap()->undefined_value(); |
| 707 } | 705 } |
| 708 | 706 |
| 709 } } // namespace v8::internal | 707 } } // namespace v8::internal |
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