93 lines
3 KiB
C++
93 lines
3 KiB
C++
#ifndef TSAN_INTERCEPTORS_H
|
|
#define TSAN_INTERCEPTORS_H
|
|
|
|
#include "sanitizer_common/sanitizer_stacktrace.h"
|
|
#include "tsan_rtl.h"
|
|
|
|
namespace __tsan {
|
|
|
|
class ScopedInterceptor {
|
|
public:
|
|
ScopedInterceptor(ThreadState *thr, const char *fname, uptr pc);
|
|
~ScopedInterceptor();
|
|
void DisableIgnores() {
|
|
if (UNLIKELY(ignoring_))
|
|
DisableIgnoresImpl();
|
|
}
|
|
void EnableIgnores() {
|
|
if (UNLIKELY(ignoring_))
|
|
EnableIgnoresImpl();
|
|
}
|
|
|
|
private:
|
|
ThreadState *const thr_;
|
|
bool in_ignored_lib_;
|
|
bool ignoring_;
|
|
|
|
void DisableIgnoresImpl();
|
|
void EnableIgnoresImpl();
|
|
};
|
|
|
|
LibIgnore *libignore();
|
|
|
|
#if !SANITIZER_GO
|
|
inline bool in_symbolizer() {
|
|
return UNLIKELY(cur_thread_init()->in_symbolizer);
|
|
}
|
|
#endif
|
|
|
|
} // namespace __tsan
|
|
|
|
#define SCOPED_INTERCEPTOR_RAW(func, ...) \
|
|
ThreadState *thr = cur_thread_init(); \
|
|
ScopedInterceptor si(thr, #func, GET_CALLER_PC()); \
|
|
UNUSED const uptr pc = GET_CURRENT_PC();
|
|
|
|
#ifdef __powerpc64__
|
|
// Debugging of crashes on powerpc after commit:
|
|
// c80604f7a3 ("tsan: remove real func check from interceptors")
|
|
// Somehow replacing if with DCHECK leads to strange failures in:
|
|
// SanitizerCommon-tsan-powerpc64le-Linux :: Linux/ptrace.cpp
|
|
// https://lab.llvm.org/buildbot/#/builders/105
|
|
// https://lab.llvm.org/buildbot/#/builders/121
|
|
// https://lab.llvm.org/buildbot/#/builders/57
|
|
# define CHECK_REAL_FUNC(func) \
|
|
if (REAL(func) == 0) { \
|
|
Report("FATAL: ThreadSanitizer: failed to intercept %s\n", #func); \
|
|
Die(); \
|
|
}
|
|
#else
|
|
# define CHECK_REAL_FUNC(func) DCHECK(REAL(func))
|
|
#endif
|
|
|
|
#define SCOPED_TSAN_INTERCEPTOR(func, ...) \
|
|
SCOPED_INTERCEPTOR_RAW(func, __VA_ARGS__); \
|
|
CHECK_REAL_FUNC(func); \
|
|
if (!thr->is_inited || thr->ignore_interceptors || thr->in_ignored_lib) \
|
|
return REAL(func)(__VA_ARGS__);
|
|
|
|
#define SCOPED_TSAN_INTERCEPTOR_USER_CALLBACK_START() \
|
|
si.DisableIgnores();
|
|
|
|
#define SCOPED_TSAN_INTERCEPTOR_USER_CALLBACK_END() \
|
|
si.EnableIgnores();
|
|
|
|
#define TSAN_INTERCEPTOR(ret, func, ...) INTERCEPTOR(ret, func, __VA_ARGS__)
|
|
|
|
#if SANITIZER_NETBSD
|
|
# define TSAN_INTERCEPTOR_NETBSD_ALIAS(ret, func, ...) \
|
|
TSAN_INTERCEPTOR(ret, __libc_##func, __VA_ARGS__) \
|
|
ALIAS(WRAPPER_NAME(pthread_##func));
|
|
# define TSAN_INTERCEPTOR_NETBSD_ALIAS_THR(ret, func, ...) \
|
|
TSAN_INTERCEPTOR(ret, __libc_thr_##func, __VA_ARGS__) \
|
|
ALIAS(WRAPPER_NAME(pthread_##func));
|
|
# define TSAN_INTERCEPTOR_NETBSD_ALIAS_THR2(ret, func, func2, ...) \
|
|
TSAN_INTERCEPTOR(ret, __libc_thr_##func, __VA_ARGS__) \
|
|
ALIAS(WRAPPER_NAME(pthread_##func2));
|
|
#else
|
|
# define TSAN_INTERCEPTOR_NETBSD_ALIAS(ret, func, ...)
|
|
# define TSAN_INTERCEPTOR_NETBSD_ALIAS_THR(ret, func, ...)
|
|
# define TSAN_INTERCEPTOR_NETBSD_ALIAS_THR2(ret, func, func2, ...)
|
|
#endif
|
|
|
|
#endif // TSAN_INTERCEPTORS_H
|