1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
#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_FREEBSD
# define TSAN_INTERCEPTOR_FREEBSD_ALIAS(ret, func, ...) \
TSAN_INTERCEPTOR(ret, _pthread_##func, __VA_ARGS__) \
ALIAS(WRAPPER_NAME(pthread_##func));
#else
# define TSAN_INTERCEPTOR_FREEBSD_ALIAS(ret, func, ...)
#endif
#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
|
