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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 "execution.h" | 5 #include "execution.h" |
6 | 6 |
7 #include "bootstrapper.h" | 7 #include "bootstrapper.h" |
8 #include "codegen.h" | 8 #include "codegen.h" |
9 #include "deoptimizer.h" | 9 #include "deoptimizer.h" |
10 #include "isolate-inl.h" | 10 #include "isolate-inl.h" |
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373 thread_local_.interrupt_flags_ &= ~flagbit; | 373 thread_local_.interrupt_flags_ &= ~flagbit; |
374 if (!should_postpone_interrupts(lock) && !has_pending_interrupts(lock)) { | 374 if (!should_postpone_interrupts(lock) && !has_pending_interrupts(lock)) { |
375 reset_limits(lock); | 375 reset_limits(lock); |
376 } | 376 } |
377 return result; | 377 return result; |
378 } | 378 } |
379 | 379 |
380 | 380 |
381 char* StackGuard::ArchiveStackGuard(char* to) { | 381 char* StackGuard::ArchiveStackGuard(char* to) { |
382 ExecutionAccess access(isolate_); | 382 ExecutionAccess access(isolate_); |
383 OS::MemCopy(to, reinterpret_cast<char*>(&thread_local_), sizeof(ThreadLocal)); | 383 MemCopy(to, reinterpret_cast<char*>(&thread_local_), sizeof(ThreadLocal)); |
384 ThreadLocal blank; | 384 ThreadLocal blank; |
385 | 385 |
386 // Set the stack limits using the old thread_local_. | 386 // Set the stack limits using the old thread_local_. |
387 // TODO(isolates): This was the old semantics of constructing a ThreadLocal | 387 // TODO(isolates): This was the old semantics of constructing a ThreadLocal |
388 // (as the ctor called SetStackLimits, which looked at the | 388 // (as the ctor called SetStackLimits, which looked at the |
389 // current thread_local_ from StackGuard)-- but is this | 389 // current thread_local_ from StackGuard)-- but is this |
390 // really what was intended? | 390 // really what was intended? |
391 isolate_->heap()->SetStackLimits(); | 391 isolate_->heap()->SetStackLimits(); |
392 thread_local_ = blank; | 392 thread_local_ = blank; |
393 | 393 |
394 return to + sizeof(ThreadLocal); | 394 return to + sizeof(ThreadLocal); |
395 } | 395 } |
396 | 396 |
397 | 397 |
398 char* StackGuard::RestoreStackGuard(char* from) { | 398 char* StackGuard::RestoreStackGuard(char* from) { |
399 ExecutionAccess access(isolate_); | 399 ExecutionAccess access(isolate_); |
400 OS::MemCopy( | 400 MemCopy(reinterpret_cast<char*>(&thread_local_), from, sizeof(ThreadLocal)); |
401 reinterpret_cast<char*>(&thread_local_), from, sizeof(ThreadLocal)); | |
402 isolate_->heap()->SetStackLimits(); | 401 isolate_->heap()->SetStackLimits(); |
403 return from + sizeof(ThreadLocal); | 402 return from + sizeof(ThreadLocal); |
404 } | 403 } |
405 | 404 |
406 | 405 |
407 void StackGuard::FreeThreadResources() { | 406 void StackGuard::FreeThreadResources() { |
408 Isolate::PerIsolateThreadData* per_thread = | 407 Isolate::PerIsolateThreadData* per_thread = |
409 isolate_->FindOrAllocatePerThreadDataForThisThread(); | 408 isolate_->FindOrAllocatePerThreadDataForThisThread(); |
410 per_thread->set_stack_limit(thread_local_.real_climit_); | 409 per_thread->set_stack_limit(thread_local_.real_climit_); |
411 } | 410 } |
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747 | 746 |
748 if (has_api_interrupt) { | 747 if (has_api_interrupt) { |
749 // Callback must be invoked outside of ExecusionAccess lock. | 748 // Callback must be invoked outside of ExecusionAccess lock. |
750 isolate_->InvokeApiInterruptCallback(); | 749 isolate_->InvokeApiInterruptCallback(); |
751 } | 750 } |
752 | 751 |
753 return isolate_->heap()->undefined_value(); | 752 return isolate_->heap()->undefined_value(); |
754 } | 753 } |
755 | 754 |
756 } } // namespace v8::internal | 755 } } // namespace v8::internal |
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