Vedant Kumar 59ba7b8cd1 [compiler-rt] Apply modernize-use-nullptr fixes in sanitizers
- Trim spaces.
- Use nullptr in place of 0 for pointer variables.
- Use '!p' in place of 'p == 0' for null pointer checks.
- Add blank lines to separate function definitions.
- Add 'extern "C"' or 'namespace foo' comments after the appropriate
  closing brackets

This is a continuation of work from 409b7b82. The focus here is on the
various sanitizers (not sanitizer_common, as before).

Patch by Eugene Zelenko!

Differential Revision: http://reviews.llvm.org/D13225

llvm-svn: 248966
2015-10-01 00:22:21 +00:00

72 lines
2.0 KiB
C++

//===-- msan_thread.h -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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