diff options
Diffstat (limited to 'lib/asan/asan_thread.cc')
| -rw-r--r-- | lib/asan/asan_thread.cc | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/lib/asan/asan_thread.cc b/lib/asan/asan_thread.cc index 14684086b..537b53d9e 100644 --- a/lib/asan/asan_thread.cc +++ b/lib/asan/asan_thread.cc @@ -141,7 +141,9 @@ void AsanThread::StartSwitchFiber(FakeStack **fake_stack_save, uptr bottom, current_fake_stack->Destroy(this->tid()); } -void AsanThread::FinishSwitchFiber(FakeStack *fake_stack_save) { +void AsanThread::FinishSwitchFiber(FakeStack *fake_stack_save, + uptr *bottom_old, + uptr *size_old) { if (!atomic_load(&stack_switching_, memory_order_relaxed)) { Report("ERROR: finishing a fiber switch that has not started\n"); Die(); @@ -152,6 +154,10 @@ void AsanThread::FinishSwitchFiber(FakeStack *fake_stack_save) { fake_stack_ = fake_stack_save; } + if (bottom_old) + *bottom_old = stack_bottom_; + if (size_old) + *size_old = stack_top_ - stack_bottom_; stack_bottom_ = next_stack_bottom_; stack_top_ = next_stack_top_; atomic_store(&stack_switching_, 0, memory_order_release); @@ -447,12 +453,16 @@ void __sanitizer_start_switch_fiber(void **fakestacksave, const void *bottom, } SANITIZER_INTERFACE_ATTRIBUTE -void __sanitizer_finish_switch_fiber(void* fakestack) { +void __sanitizer_finish_switch_fiber(void* fakestack, + const void **bottom_old, + uptr *size_old) { AsanThread *t = GetCurrentThread(); if (!t) { VReport(1, "__asan_finish_switch_fiber called from unknown thread\n"); return; } - t->FinishSwitchFiber((FakeStack*)fakestack); + t->FinishSwitchFiber((FakeStack*)fakestack, + (uptr*)bottom_old, + (uptr*)size_old); } } |