696d846a56
libsanitizer/ 2015-10-20 Maxim Ostapenko <m.ostapenko@partner.samsung.com> * All source files: Merge from upstream r250806. * configure.ac (link_sanitizer_common): Add -lrt flag. * configure.tgt: Enable TSAN and LSAN for aarch64-linux targets. Set CXX_ABI_NEEDED=true for darwin. * asan/Makefile.am (asan_files): Add new files. (DEFS): Add DCAN_SANITIZE_UB=0 and remove unused and legacy DASAN_FLEXIBLE_MAPPING_AND_OFFSET=0. * asan/Makefile.in: Regenerate. * ubsan/Makefile.am (ubsan_files): Add new files. (DEFS): Add DCAN_SANITIZE_UB=1. (libubsan_la_LIBADD): Add -lc++abi if CXX_ABI_NEEDED is true. * ubsan/Makefile.in: Regenerate. * tsan/Makefile.am (tsan_files): Add new files. (DEFS): Add DCAN_SANITIZE_UB=0. * tsan/Makefile.in: Regenerate. * sanitizer_common/Makefile.am (sanitizer_common_files): Add new files. * sanitizer_common/Makefile.in: Regenerate. * asan/libtool-version: Bump the libasan SONAME. From-SVN: r229111
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
//===-- tsan_mutexset.h -----------------------------------------*- C++ -*-===//
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of ThreadSanitizer (TSan), a race detector.
|
|
//
|
|
// MutexSet holds the set of mutexes currently held by a thread.
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef TSAN_MUTEXSET_H
|
|
#define TSAN_MUTEXSET_H
|
|
|
|
#include "tsan_defs.h"
|
|
|
|
namespace __tsan {
|
|
|
|
class MutexSet {
|
|
public:
|
|
// Holds limited number of mutexes.
|
|
// The oldest mutexes are discarded on overflow.
|
|
static const uptr kMaxSize = 16;
|
|
struct Desc {
|
|
u64 id;
|
|
u64 epoch;
|
|
int count;
|
|
bool write;
|
|
};
|
|
|
|
MutexSet();
|
|
// The 'id' is obtained from SyncVar::GetId().
|
|
void Add(u64 id, bool write, u64 epoch);
|
|
void Del(u64 id, bool write);
|
|
void Remove(u64 id); // Removes the mutex completely (if it's destroyed).
|
|
uptr Size() const;
|
|
Desc Get(uptr i) const;
|
|
|
|
void operator=(const MutexSet &other) {
|
|
internal_memcpy(this, &other, sizeof(*this));
|
|
}
|
|
|
|
private:
|
|
#ifndef SANITIZER_GO
|
|
uptr size_;
|
|
Desc descs_[kMaxSize];
|
|
#endif
|
|
|
|
void RemovePos(uptr i);
|
|
MutexSet(const MutexSet&);
|
|
};
|
|
|
|
// Go does not have mutexes, so do not spend memory and time.
|
|
// (Go sync.Mutex is actually a semaphore -- can be unlocked
|
|
// in different goroutine).
|
|
#ifdef SANITIZER_GO
|
|
MutexSet::MutexSet() {}
|
|
void MutexSet::Add(u64 id, bool write, u64 epoch) {}
|
|
void MutexSet::Del(u64 id, bool write) {}
|
|
void MutexSet::Remove(u64 id) {}
|
|
void MutexSet::RemovePos(uptr i) {}
|
|
uptr MutexSet::Size() const { return 0; }
|
|
MutexSet::Desc MutexSet::Get(uptr i) const { return Desc(); }
|
|
#endif
|
|
|
|
} // namespace __tsan
|
|
|
|
#endif // TSAN_MUTEXSET_H
|