1 //===-- tsan_interceptors_mac.cc ------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file is a part of ThreadSanitizer (TSan), a race detector.
11 //
12 // Mac-specific interceptors.
13 //===----------------------------------------------------------------------===//
14
15 #include "sanitizer_common/sanitizer_platform.h"
16 #if SANITIZER_MAC
17
18 #include "interception/interception.h"
19 #include "tsan_interceptors.h"
20
21 #include <libkern/OSAtomic.h>
22
23 namespace __tsan {
24
TSAN_INTERCEPTOR(void,OSSpinLockLock,volatile OSSpinLock * lock)25 TSAN_INTERCEPTOR(void, OSSpinLockLock, volatile OSSpinLock *lock) {
26 CHECK(!cur_thread()->is_dead);
27 if (!cur_thread()->is_inited) {
28 return REAL(OSSpinLockLock)(lock);
29 }
30 SCOPED_TSAN_INTERCEPTOR(OSSpinLockLock, lock);
31 REAL(OSSpinLockLock)(lock);
32 Acquire(thr, pc, (uptr)lock);
33 }
34
TSAN_INTERCEPTOR(bool,OSSpinLockTry,volatile OSSpinLock * lock)35 TSAN_INTERCEPTOR(bool, OSSpinLockTry, volatile OSSpinLock *lock) {
36 CHECK(!cur_thread()->is_dead);
37 if (!cur_thread()->is_inited) {
38 return REAL(OSSpinLockTry)(lock);
39 }
40 SCOPED_TSAN_INTERCEPTOR(OSSpinLockTry, lock);
41 bool result = REAL(OSSpinLockTry)(lock);
42 if (result)
43 Acquire(thr, pc, (uptr)lock);
44 return result;
45 }
46
TSAN_INTERCEPTOR(void,OSSpinLockUnlock,volatile OSSpinLock * lock)47 TSAN_INTERCEPTOR(void, OSSpinLockUnlock, volatile OSSpinLock *lock) {
48 CHECK(!cur_thread()->is_dead);
49 if (!cur_thread()->is_inited) {
50 return REAL(OSSpinLockUnlock)(lock);
51 }
52 SCOPED_TSAN_INTERCEPTOR(OSSpinLockUnlock, lock);
53 Release(thr, pc, (uptr)lock);
54 REAL(OSSpinLockUnlock)(lock);
55 }
56
TSAN_INTERCEPTOR(void,os_lock_lock,void * lock)57 TSAN_INTERCEPTOR(void, os_lock_lock, void *lock) {
58 CHECK(!cur_thread()->is_dead);
59 if (!cur_thread()->is_inited) {
60 return REAL(os_lock_lock)(lock);
61 }
62 SCOPED_TSAN_INTERCEPTOR(os_lock_lock, lock);
63 REAL(os_lock_lock)(lock);
64 Acquire(thr, pc, (uptr)lock);
65 }
66
TSAN_INTERCEPTOR(bool,os_lock_trylock,void * lock)67 TSAN_INTERCEPTOR(bool, os_lock_trylock, void *lock) {
68 CHECK(!cur_thread()->is_dead);
69 if (!cur_thread()->is_inited) {
70 return REAL(os_lock_trylock)(lock);
71 }
72 SCOPED_TSAN_INTERCEPTOR(os_lock_trylock, lock);
73 bool result = REAL(os_lock_trylock)(lock);
74 if (result)
75 Acquire(thr, pc, (uptr)lock);
76 return result;
77 }
78
TSAN_INTERCEPTOR(void,os_lock_unlock,void * lock)79 TSAN_INTERCEPTOR(void, os_lock_unlock, void *lock) {
80 CHECK(!cur_thread()->is_dead);
81 if (!cur_thread()->is_inited) {
82 return REAL(os_lock_unlock)(lock);
83 }
84 SCOPED_TSAN_INTERCEPTOR(os_lock_unlock, lock);
85 Release(thr, pc, (uptr)lock);
86 REAL(os_lock_unlock)(lock);
87 }
88
89 } // namespace __tsan
90
91 #endif // SANITIZER_MAC
92