161 lines
5.1 KiB
C++
161 lines
5.1 KiB
C++
//===-- asan_interceptors.h -------------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of AddressSanitizer, an address sanity checker.
|
|
//
|
|
// ASan-private header for asan_interceptors.cpp
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef ASAN_INTERCEPTORS_H
|
|
#define ASAN_INTERCEPTORS_H
|
|
|
|
#include "asan_interceptors_memintrinsics.h"
|
|
#include "asan_internal.h"
|
|
#include "interception/interception.h"
|
|
#include "sanitizer_common/sanitizer_platform.h"
|
|
#include "sanitizer_common/sanitizer_platform_interceptors.h"
|
|
|
|
namespace __asan {
|
|
|
|
void InitializeAsanInterceptors();
|
|
void InitializePlatformInterceptors();
|
|
|
|
#define ENSURE_ASAN_INITED() \
|
|
do { \
|
|
CHECK(!asan_init_is_running); \
|
|
if (UNLIKELY(!asan_inited)) { \
|
|
AsanInitFromRtl(); \
|
|
} \
|
|
} while (0)
|
|
|
|
} // namespace __asan
|
|
|
|
// There is no general interception at all on Fuchsia and RTEMS.
|
|
// Only the functions in asan_interceptors_memintrinsics.h are
|
|
// really defined to replace libc functions.
|
|
#if !SANITIZER_FUCHSIA && !SANITIZER_RTEMS
|
|
|
|
// Use macro to describe if specific function should be
|
|
// intercepted on a given platform.
|
|
#if !SANITIZER_WINDOWS
|
|
# define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 1
|
|
# define ASAN_INTERCEPT__LONGJMP 1
|
|
# define ASAN_INTERCEPT_INDEX 1
|
|
# define ASAN_INTERCEPT_PTHREAD_CREATE 1
|
|
#else
|
|
# define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 0
|
|
# define ASAN_INTERCEPT__LONGJMP 0
|
|
# define ASAN_INTERCEPT_INDEX 0
|
|
# define ASAN_INTERCEPT_PTHREAD_CREATE 0
|
|
#endif
|
|
|
|
#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
|
|
SANITIZER_SOLARIS
|
|
# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 1
|
|
#else
|
|
# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 0
|
|
#endif
|
|
|
|
#if (SANITIZER_LINUX && !SANITIZER_ANDROID) || SANITIZER_SOLARIS
|
|
# define ASAN_INTERCEPT_SWAPCONTEXT 1
|
|
#else
|
|
# define ASAN_INTERCEPT_SWAPCONTEXT 0
|
|
#endif
|
|
|
|
#if !SANITIZER_WINDOWS
|
|
# define ASAN_INTERCEPT_SIGLONGJMP 1
|
|
#else
|
|
# define ASAN_INTERCEPT_SIGLONGJMP 0
|
|
#endif
|
|
|
|
#if SANITIZER_LINUX && !SANITIZER_ANDROID
|
|
# define ASAN_INTERCEPT___LONGJMP_CHK 1
|
|
#else
|
|
# define ASAN_INTERCEPT___LONGJMP_CHK 0
|
|
#endif
|
|
|
|
#if ASAN_HAS_EXCEPTIONS && !SANITIZER_WINDOWS && !SANITIZER_SOLARIS && \
|
|
!SANITIZER_NETBSD
|
|
# define ASAN_INTERCEPT___CXA_THROW 1
|
|
# if ! defined(ASAN_HAS_CXA_RETHROW_PRIMARY_EXCEPTION) \
|
|
|| ASAN_HAS_CXA_RETHROW_PRIMARY_EXCEPTION
|
|
# define ASAN_INTERCEPT___CXA_RETHROW_PRIMARY_EXCEPTION 1
|
|
# else
|
|
# define ASAN_INTERCEPT___CXA_RETHROW_PRIMARY_EXCEPTION 0
|
|
# endif
|
|
# if defined(_GLIBCXX_SJLJ_EXCEPTIONS) || (SANITIZER_IOS && defined(__arm__))
|
|
# define ASAN_INTERCEPT__UNWIND_SJLJ_RAISEEXCEPTION 1
|
|
# else
|
|
# define ASAN_INTERCEPT__UNWIND_RAISEEXCEPTION 1
|
|
# endif
|
|
#else
|
|
# define ASAN_INTERCEPT___CXA_THROW 0
|
|
# define ASAN_INTERCEPT___CXA_RETHROW_PRIMARY_EXCEPTION 0
|
|
# define ASAN_INTERCEPT__UNWIND_RAISEEXCEPTION 0
|
|
# define ASAN_INTERCEPT__UNWIND_SJLJ_RAISEEXCEPTION 0
|
|
#endif
|
|
|
|
#if !SANITIZER_WINDOWS
|
|
# define ASAN_INTERCEPT___CXA_ATEXIT 1
|
|
#else
|
|
# define ASAN_INTERCEPT___CXA_ATEXIT 0
|
|
#endif
|
|
|
|
#if SANITIZER_NETBSD
|
|
# define ASAN_INTERCEPT_ATEXIT 1
|
|
#else
|
|
# define ASAN_INTERCEPT_ATEXIT 0
|
|
#endif
|
|
|
|
#if SANITIZER_LINUX && !SANITIZER_ANDROID
|
|
# define ASAN_INTERCEPT___STRDUP 1
|
|
#else
|
|
# define ASAN_INTERCEPT___STRDUP 0
|
|
#endif
|
|
|
|
#if SANITIZER_LINUX && \
|
|
(defined(__arm__) || defined(__aarch64__) || defined(__i386__) || \
|
|
defined(__x86_64__) || SANITIZER_RISCV64)
|
|
# define ASAN_INTERCEPT_VFORK 1
|
|
#else
|
|
# define ASAN_INTERCEPT_VFORK 0
|
|
#endif
|
|
|
|
#if SANITIZER_NETBSD
|
|
# define ASAN_INTERCEPT_PTHREAD_ATFORK 1
|
|
#else
|
|
# define ASAN_INTERCEPT_PTHREAD_ATFORK 0
|
|
#endif
|
|
|
|
DECLARE_REAL(int, memcmp, const void *a1, const void *a2, uptr size)
|
|
DECLARE_REAL(char*, strchr, const char *str, int c)
|
|
DECLARE_REAL(SIZE_T, strlen, const char *s)
|
|
DECLARE_REAL(char*, strncpy, char *to, const char *from, uptr size)
|
|
DECLARE_REAL(uptr, strnlen, const char *s, uptr maxlen)
|
|
DECLARE_REAL(char*, strstr, const char *s1, const char *s2)
|
|
|
|
#if !SANITIZER_MAC
|
|
#define ASAN_INTERCEPT_FUNC(name) \
|
|
do { \
|
|
if (!INTERCEPT_FUNCTION(name)) \
|
|
VReport(1, "AddressSanitizer: failed to intercept '%s'\n'", #name); \
|
|
} while (0)
|
|
#define ASAN_INTERCEPT_FUNC_VER(name, ver) \
|
|
do { \
|
|
if (!INTERCEPT_FUNCTION_VER(name, ver)) \
|
|
VReport(1, "AddressSanitizer: failed to intercept '%s@@%s'\n", #name, \
|
|
#ver); \
|
|
} while (0)
|
|
#else
|
|
// OS X interceptors don't need to be initialized with INTERCEPT_FUNCTION.
|
|
#define ASAN_INTERCEPT_FUNC(name)
|
|
#endif // SANITIZER_MAC
|
|
|
|
#endif // !SANITIZER_FUCHSIA
|
|
|
|
#endif // ASAN_INTERCEPTORS_H
|