1 //===-- asan_interceptors.h -------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file is a part of AddressSanitizer, an address sanity checker.
12 // ASan-private header for asan_interceptors.cc
13 //===----------------------------------------------------------------------===//
14 #ifndef ASAN_INTERCEPTORS_H
15 #define ASAN_INTERCEPTORS_H
17 #include "asan_internal.h"
18 #include "sanitizer_common/sanitizer_interception.h"
19 #include "sanitizer_common/sanitizer_platform_interceptors.h"
21 // Use macro to describe if specific function should be
22 // intercepted on a given platform.
23 #if !SANITIZER_WINDOWS
24 # define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 1
25 # define ASAN_INTERCEPT__LONGJMP 1
26 # define ASAN_INTERCEPT_STRDUP 1
27 # define ASAN_INTERCEPT_INDEX 1
28 # define ASAN_INTERCEPT_PTHREAD_CREATE 1
29 # define ASAN_INTERCEPT_MLOCKX 1
31 # define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 0
32 # define ASAN_INTERCEPT__LONGJMP 0
33 # define ASAN_INTERCEPT_STRDUP 0
34 # define ASAN_INTERCEPT_INDEX 0
35 # define ASAN_INTERCEPT_PTHREAD_CREATE 0
36 # define ASAN_INTERCEPT_MLOCKX 0
39 #if SANITIZER_FREEBSD || SANITIZER_LINUX
40 # define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 1
42 # define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 0
46 # define ASAN_INTERCEPT_STRNLEN 1
48 # define ASAN_INTERCEPT_STRNLEN 0
51 #if SANITIZER_LINUX && !SANITIZER_ANDROID
52 # define ASAN_INTERCEPT_SWAPCONTEXT 1
54 # define ASAN_INTERCEPT_SWAPCONTEXT 0
57 #if !SANITIZER_WINDOWS
58 # define ASAN_INTERCEPT_SIGNAL_AND_SIGACTION 1
60 # define ASAN_INTERCEPT_SIGNAL_AND_SIGACTION 0
63 #if !SANITIZER_WINDOWS
64 # define ASAN_INTERCEPT_SIGLONGJMP 1
66 # define ASAN_INTERCEPT_SIGLONGJMP 0
69 #if ASAN_HAS_EXCEPTIONS && !SANITIZER_WINDOWS
70 # define ASAN_INTERCEPT___CXA_THROW 1
72 # define ASAN_INTERCEPT___CXA_THROW 0
75 #if !SANITIZER_WINDOWS
76 # define ASAN_INTERCEPT___CXA_ATEXIT 1
78 # define ASAN_INTERCEPT___CXA_ATEXIT 0
81 DECLARE_REAL(int, memcmp
, const void *a1
, const void *a2
, uptr size
)
82 DECLARE_REAL(void*, memcpy
, void *to
, const void *from
, uptr size
)
83 DECLARE_REAL(void*, memset
, void *block
, int c
, uptr size
)
84 DECLARE_REAL(char*, strchr
, const char *str
, int c
)
85 DECLARE_REAL(uptr
, strlen
, const char *s
)
86 DECLARE_REAL(char*, strncpy
, char *to
, const char *from
, uptr size
)
87 DECLARE_REAL(uptr
, strnlen
, const char *s
, uptr maxlen
)
88 DECLARE_REAL(char*, strstr
, const char *s1
, const char *s2
)
90 DECLARE_REAL(int, sigaction
, int signum
, const struct sigaction
*act
,
91 struct sigaction
*oldact
)
95 void InitializeAsanInterceptors();
97 #define ENSURE_ASAN_INITED() do { \
98 CHECK(!asan_init_is_running); \
104 } // namespace __asan
106 #endif // ASAN_INTERCEPTORS_H