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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
//===-- msan_thread.h -------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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