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125 lines
4.0 KiB
125 lines
4.0 KiB
4 months ago
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//===-- asan_interceptors.h -------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of AddressSanitizer, an address sanity checker.
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//
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// ASan-private header for asan_interceptors.cc
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//===----------------------------------------------------------------------===//
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#ifndef ASAN_INTERCEPTORS_H
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#define ASAN_INTERCEPTORS_H
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#include "asan_internal.h"
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#include "interception/interception.h"
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#include "sanitizer_common/sanitizer_platform_interceptors.h"
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// Use macro to describe if specific function should be
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// intercepted on a given platform.
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#if !SANITIZER_WINDOWS
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# define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 1
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# define ASAN_INTERCEPT__LONGJMP 1
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# define ASAN_INTERCEPT_INDEX 1
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# define ASAN_INTERCEPT_PTHREAD_CREATE 1
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# define ASAN_INTERCEPT_FORK 1
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#else
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# define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 0
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# define ASAN_INTERCEPT__LONGJMP 0
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# define ASAN_INTERCEPT_INDEX 0
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# define ASAN_INTERCEPT_PTHREAD_CREATE 0
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# define ASAN_INTERCEPT_FORK 0
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#endif
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#if SANITIZER_FREEBSD || SANITIZER_LINUX
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# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 1
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#else
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# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 0
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#endif
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#if SANITIZER_LINUX && !SANITIZER_ANDROID
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# define ASAN_INTERCEPT_SWAPCONTEXT 1
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#else
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# define ASAN_INTERCEPT_SWAPCONTEXT 0
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#endif
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#if !SANITIZER_WINDOWS
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# define ASAN_INTERCEPT_SIGNAL_AND_SIGACTION 1
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#else
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# define ASAN_INTERCEPT_SIGNAL_AND_SIGACTION 0
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#endif
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#if !SANITIZER_WINDOWS
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# define ASAN_INTERCEPT_SIGLONGJMP 1
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#else
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# define ASAN_INTERCEPT_SIGLONGJMP 0
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#endif
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// Android bug: https://code.google.com/p/android/issues/detail?id=61799
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#if ASAN_HAS_EXCEPTIONS && !SANITIZER_WINDOWS && \
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!(SANITIZER_ANDROID && defined(__i386))
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# define ASAN_INTERCEPT___CXA_THROW 1
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#else
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# define ASAN_INTERCEPT___CXA_THROW 0
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#endif
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#if !SANITIZER_WINDOWS
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# define ASAN_INTERCEPT___CXA_ATEXIT 1
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#else
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# define ASAN_INTERCEPT___CXA_ATEXIT 0
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#endif
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#if SANITIZER_LINUX && !SANITIZER_ANDROID
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# define ASAN_INTERCEPT___STRDUP 1
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#else
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# define ASAN_INTERCEPT___STRDUP 0
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#endif
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DECLARE_REAL(int, memcmp, const void *a1, const void *a2, uptr size)
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DECLARE_REAL(void*, memcpy, void *to, const void *from, uptr size)
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DECLARE_REAL(void*, memset, void *block, int c, uptr size)
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DECLARE_REAL(char*, strchr, const char *str, int c)
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DECLARE_REAL(SIZE_T, strlen, const char *s)
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DECLARE_REAL(char*, strncpy, char *to, const char *from, uptr size)
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DECLARE_REAL(uptr, strnlen, const char *s, uptr maxlen)
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DECLARE_REAL(char*, strstr, const char *s1, const char *s2)
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struct sigaction;
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DECLARE_REAL(int, sigaction, int signum, const struct sigaction *act,
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struct sigaction *oldact)
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#if !SANITIZER_MAC
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#define ASAN_INTERCEPT_FUNC(name) \
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do { \
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if ((!INTERCEPT_FUNCTION(name) || !REAL(name))) \
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VReport(1, "AddressSanitizer: failed to intercept '" #name "'\n"); \
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} while (0)
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#define ASAN_INTERCEPT_FUNC_VER(name, ver) \
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do { \
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if ((!INTERCEPT_FUNCTION_VER(name, ver) || !REAL(name))) \
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VReport( \
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1, "AddressSanitizer: failed to intercept '" #name "@@" #ver "'\n"); \
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} while (0)
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#else
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// OS X interceptors don't need to be initialized with INTERCEPT_FUNCTION.
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#define ASAN_INTERCEPT_FUNC(name)
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#endif // SANITIZER_MAC
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namespace __asan {
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void InitializeAsanInterceptors();
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void InitializePlatformInterceptors();
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#define ENSURE_ASAN_INITED() do { \
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CHECK(!asan_init_is_running); \
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if (UNLIKELY(!asan_inited)) { \
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AsanInitFromRtl(); \
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} \
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} while (0)
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} // namespace __asan
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#endif // ASAN_INTERCEPTORS_H
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