forked from OSchip/llvm-project
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
//===-- msan_thread.h -------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of MemorySanitizer.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MSAN_THREAD_H
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#define MSAN_THREAD_H
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#include "msan_allocator.h"
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#include "sanitizer_common/sanitizer_common.h"
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namespace __msan {
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class MsanThread {
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public:
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static MsanThread *Create(thread_callback_t start_routine, void *arg);
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static void TSDDtor(void *tsd);
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void Destroy();
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void Init(); // Should be called from the thread itself.
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thread_return_t ThreadStart();
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uptr stack_top() { return stack_top_; }
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uptr stack_bottom() { return stack_bottom_; }
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uptr tls_begin() { return tls_begin_; }
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uptr tls_end() { return tls_end_; }
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bool IsMainThread() { return start_routine_ == nullptr; }
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bool AddrIsInStack(uptr addr) {
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return addr >= stack_bottom_ && addr < stack_top_;
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}
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bool InSignalHandler() { return in_signal_handler_; }
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void EnterSignalHandler() { in_signal_handler_++; }
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void LeaveSignalHandler() { in_signal_handler_--; }
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MsanThreadLocalMallocStorage &malloc_storage() { return malloc_storage_; }
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int destructor_iterations_;
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private:
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// NOTE: There is no MsanThread constructor. It is allocated
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// via mmap() and *must* be valid in zero-initialized state.
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void SetThreadStackAndTls();
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void ClearShadowForThreadStackAndTLS();
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thread_callback_t start_routine_;
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void *arg_;
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uptr stack_top_;
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uptr stack_bottom_;
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uptr tls_begin_;
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uptr tls_end_;
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unsigned in_signal_handler_;
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MsanThreadLocalMallocStorage malloc_storage_;
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};
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MsanThread *GetCurrentThread();
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void SetCurrentThread(MsanThread *t);
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} // namespace __msan
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#endif // MSAN_THREAD_H
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