forked from OSchip/llvm-project
71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
//===-- msan_thread.h -------------------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of MemorySanitizer.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef MSAN_THREAD_H
|
|
#define MSAN_THREAD_H
|
|
|
|
#include "msan_allocator.h"
|
|
#include "sanitizer_common/sanitizer_common.h"
|
|
|
|
namespace __msan {
|
|
|
|
class MsanThread {
|
|
public:
|
|
static MsanThread *Create(thread_callback_t start_routine, void *arg);
|
|
static void TSDDtor(void *tsd);
|
|
void Destroy();
|
|
|
|
void Init(); // Should be called from the thread itself.
|
|
thread_return_t ThreadStart();
|
|
|
|
uptr stack_top() { return stack_top_; }
|
|
uptr stack_bottom() { return stack_bottom_; }
|
|
uptr tls_begin() { return tls_begin_; }
|
|
uptr tls_end() { return tls_end_; }
|
|
bool IsMainThread() { return start_routine_ == nullptr; }
|
|
|
|
bool AddrIsInStack(uptr addr) {
|
|
return addr >= stack_bottom_ && addr < stack_top_;
|
|
}
|
|
|
|
bool InSignalHandler() { return in_signal_handler_; }
|
|
void EnterSignalHandler() { in_signal_handler_++; }
|
|
void LeaveSignalHandler() { in_signal_handler_--; }
|
|
|
|
MsanThreadLocalMallocStorage &malloc_storage() { return malloc_storage_; }
|
|
|
|
int destructor_iterations_;
|
|
|
|
private:
|
|
// NOTE: There is no MsanThread constructor. It is allocated
|
|
// via mmap() and *must* be valid in zero-initialized state.
|
|
void SetThreadStackAndTls();
|
|
void ClearShadowForThreadStackAndTLS();
|
|
thread_callback_t start_routine_;
|
|
void *arg_;
|
|
uptr stack_top_;
|
|
uptr stack_bottom_;
|
|
uptr tls_begin_;
|
|
uptr tls_end_;
|
|
|
|
unsigned in_signal_handler_;
|
|
|
|
MsanThreadLocalMallocStorage malloc_storage_;
|
|
};
|
|
|
|
MsanThread *GetCurrentThread();
|
|
void SetCurrentThread(MsanThread *t);
|
|
|
|
} // namespace __msan
|
|
|
|
#endif // MSAN_THREAD_H
|