11e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany//===-- asan_interceptors.h -------------------------------------*- C++ -*-===// 21e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 31e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// The LLVM Compiler Infrastructure 41e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 51e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This file is distributed under the University of Illinois Open Source 61e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// License. See LICENSE.TXT for details. 71e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 81e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany//===----------------------------------------------------------------------===// 91e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// This file is a part of AddressSanitizer, an address sanity checker. 111e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// 121e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany// ASan-private header for asan_interceptors.cc 131e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany//===----------------------------------------------------------------------===// 141e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#ifndef ASAN_INTERCEPTORS_H 151e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#define ASAN_INTERCEPTORS_H 161e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 171e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#include "asan_internal.h" 182d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#include "sanitizer_common/sanitizer_interception.h" 192d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#include "sanitizer_common/sanitizer_platform_interceptors.h" 202d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 212d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// Use macro to describe if specific function should be 222d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// intercepted on a given platform. 232d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#if !SANITIZER_WINDOWS 242d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 1 252d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT__LONGJMP 1 262d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_STRDUP 1 272d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_INDEX 1 282d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_PTHREAD_CREATE 1 292d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_MLOCKX 1 305d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines# define ASAN_INTERCEPT_FORK 1 312d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 322d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_ATOLL_AND_STRTOLL 0 332d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT__LONGJMP 0 342d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_STRDUP 0 352d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_INDEX 0 362d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_PTHREAD_CREATE 0 372d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_MLOCKX 0 385d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines# define ASAN_INTERCEPT_FORK 0 392d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 402d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 412d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#if SANITIZER_FREEBSD || SANITIZER_LINUX 422d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 1 432d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 442d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 0 452d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 462d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 472d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#if !SANITIZER_MAC 482d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_STRNLEN 1 492d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 502d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_STRNLEN 0 512d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 522d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 532d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#if SANITIZER_LINUX && !SANITIZER_ANDROID 542d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_SWAPCONTEXT 1 552d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 562d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_SWAPCONTEXT 0 572d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 582d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 592d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#if !SANITIZER_WINDOWS 602d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_SIGNAL_AND_SIGACTION 1 612d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 622d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_SIGNAL_AND_SIGACTION 0 632d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 642d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 652d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#if !SANITIZER_WINDOWS 662d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_SIGLONGJMP 1 672d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 682d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT_SIGLONGJMP 0 692d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 702d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 715d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// Android bug: https://code.google.com/p/android/issues/detail?id=61799 725d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines#if ASAN_HAS_EXCEPTIONS && !SANITIZER_WINDOWS && \ 735d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines !(SANITIZER_ANDROID && defined(__i386)) 742d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT___CXA_THROW 1 752d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 762d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT___CXA_THROW 0 772d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 782d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 792d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#if !SANITIZER_WINDOWS 802d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT___CXA_ATEXIT 1 812d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#else 822d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines# define ASAN_INTERCEPT___CXA_ATEXIT 0 832d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#endif 84f2598fc21bf651d23feab396a7581d48c01c3be5Alexey Samsonov 856bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler CarruthDECLARE_REAL(int, memcmp, const void *a1, const void *a2, uptr size) 866bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler CarruthDECLARE_REAL(void*, memcpy, void *to, const void *from, uptr size) 876bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler CarruthDECLARE_REAL(void*, memset, void *block, int c, uptr size) 886bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler CarruthDECLARE_REAL(char*, strchr, const char *str, int c) 896bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler CarruthDECLARE_REAL(uptr, strlen, const char *s) 906bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler CarruthDECLARE_REAL(char*, strncpy, char *to, const char *from, uptr size) 916bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler CarruthDECLARE_REAL(uptr, strnlen, const char *s, uptr maxlen) 92eb8c46e419f4c6f01d1b1a0d1b96cc51a61ecbc3Alexander PotapenkoDECLARE_REAL(char*, strstr, const char *s1, const char *s2) 93da13ba833b046553f50b54538e4828287ddbf5c0Alexey Samsonovstruct sigaction; 94da13ba833b046553f50b54538e4828287ddbf5c0Alexey SamsonovDECLARE_REAL(int, sigaction, int signum, const struct sigaction *act, 956bae39d1db13f60d3e9b8393e5b9d9eb2ab1b5c0Chandler Carruth struct sigaction *oldact) 96f2598fc21bf651d23feab396a7581d48c01c3be5Alexey Samsonov 97f2598fc21bf651d23feab396a7581d48c01c3be5Alexey Samsonovnamespace __asan { 981e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 991e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryanyvoid InitializeAsanInterceptors(); 1005cf832dc0a6566ae4bb8d48b1f41da623d2c2c1aAlexey Samsonov 1012d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#define ENSURE_ASAN_INITED() do { \ 1022d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines CHECK(!asan_init_is_running); \ 1032d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines if (UNLIKELY(!asan_inited)) { \ 1042d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines AsanInitFromRtl(); \ 1052d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines } \ 1062d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines} while (0) 1072d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 1081e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany} // namespace __asan 1091e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany 1101e172b4bdec57329bf904f063a29f99cddf2d85fKostya Serebryany#endif // ASAN_INTERCEPTORS_H 111