asan_interceptors_dynamic.cc revision 2483ce3e635515d907c0cd8c97db315142fb28db 
1//===-- asan_interceptors_dynamic.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 AddressSanitizer, an address sanity checker.
11//
12// __DATA,__interpose section of the dynamic runtime library for Mac OS.
13//===----------------------------------------------------------------------===//
14
15#if defined(__APPLE__)
16
17#include "asan_interceptors.h"
18#include "asan_intercepted_functions.h"
19
20namespace __asan {
21
22#if !MAC_INTERPOSE_FUNCTIONS
23# error \
24  Dynamic interposing library should be built with -DMAC_INTERPOSE_FUNCTIONS
25#endif
26
27#define INTERPOSE_FUNCTION(function) \
28    { reinterpret_cast<const uptr>(WRAP(function)), \
29      reinterpret_cast<const uptr>(function) }
30
31#define INTERPOSE_FUNCTION_2(function, wrapper) \
32    { reinterpret_cast<const uptr>(wrapper), \
33      reinterpret_cast<const uptr>(function) }
34
35struct interpose_substitution {
36  const uptr replacement;
37  const uptr original;
38};
39
40__attribute__((used))
41const interpose_substitution substitutions[]
42    __attribute__((section("__DATA, __interpose"))) = {
43  INTERPOSE_FUNCTION(strlen),
44  INTERPOSE_FUNCTION(memcmp),
45  INTERPOSE_FUNCTION(memcpy),
46  INTERPOSE_FUNCTION(memmove),
47  INTERPOSE_FUNCTION(memset),
48  INTERPOSE_FUNCTION(strchr),
49  INTERPOSE_FUNCTION(strcat),
50  INTERPOSE_FUNCTION(strncat),
51  INTERPOSE_FUNCTION(strcpy),
52  INTERPOSE_FUNCTION(strncpy),
53  INTERPOSE_FUNCTION(pthread_create),
54  INTERPOSE_FUNCTION(longjmp),
55#if ASAN_INTERCEPT__LONGJMP
56  INTERPOSE_FUNCTION(_longjmp),
57#endif
58#if ASAN_INTERCEPT_SIGLONGJMP
59  INTERPOSE_FUNCTION(siglongjmp),
60#endif
61#if ASAN_INTERCEPT_STRDUP
62  INTERPOSE_FUNCTION(strdup),
63#endif
64#if ASAN_INTERCEPT_STRNLEN
65  INTERPOSE_FUNCTION(strnlen),
66#endif
67#if ASAN_INTERCEPT_INDEX
68  INTERPOSE_FUNCTION_2(index, WRAP(strchr)),
69#endif
70  INTERPOSE_FUNCTION(strcmp),
71  INTERPOSE_FUNCTION(strncmp),
72#if ASAN_INTERCEPT_STRCASECMP_AND_STRNCASECMP
73  INTERPOSE_FUNCTION(strcasecmp),
74  INTERPOSE_FUNCTION(strncasecmp),
75#endif
76  INTERPOSE_FUNCTION(atoi),
77  INTERPOSE_FUNCTION(atol),
78  INTERPOSE_FUNCTION(strtol),
79#if ASAN_INTERCEPT_ATOLL_AND_STRTOLL
80  INTERPOSE_FUNCTION(atoll),
81  INTERPOSE_FUNCTION(strtoll),
82#endif
83#if ASAN_INTERCEPT_MLOCKX
84  INTERPOSE_FUNCTION(mlock),
85  INTERPOSE_FUNCTION(munlock),
86  INTERPOSE_FUNCTION(mlockall),
87  INTERPOSE_FUNCTION(munlockall),
88#endif
89  INTERPOSE_FUNCTION(dispatch_async_f),
90  INTERPOSE_FUNCTION(dispatch_sync_f),
91  INTERPOSE_FUNCTION(dispatch_after_f),
92  INTERPOSE_FUNCTION(dispatch_barrier_async_f),
93  INTERPOSE_FUNCTION(dispatch_group_async_f),
94
95  INTERPOSE_FUNCTION(dispatch_async),
96  INTERPOSE_FUNCTION(dispatch_after),
97
98  INTERPOSE_FUNCTION(__CFInitialize),
99  INTERPOSE_FUNCTION(CFStringCreateCopy),
100  INTERPOSE_FUNCTION(free),
101};
102
103}  // namespace __asan
104
105#endif  // __APPLE__
106