forked from OSchip/llvm-project
242 lines
9.1 KiB
C++
242 lines
9.1 KiB
C++
//===-- asan_intercepted_functions.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 containing prototypes for wrapper functions and wrappers
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//===----------------------------------------------------------------------===//
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#ifndef ASAN_INTERCEPTED_FUNCTIONS_H
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#define ASAN_INTERCEPTED_FUNCTIONS_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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using __sanitizer::uptr;
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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 !defined(_WIN32)
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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_STRDUP 1
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# define ASAN_INTERCEPT_STRCASECMP_AND_STRNCASECMP 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_MLOCKX 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_STRDUP 0
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# define ASAN_INTERCEPT_STRCASECMP_AND_STRNCASECMP 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_MLOCKX 0
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#endif
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#if defined(__linux__)
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# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 1
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# define ASAN_INTERCEPT_PRCTL 1
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#else
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# define ASAN_USE_ALIAS_ATTRIBUTE_FOR_INDEX 0
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# define ASAN_INTERCEPT_PRCTL 0
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#endif
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#if !defined(__APPLE__)
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# define ASAN_INTERCEPT_STRNLEN 1
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#else
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# define ASAN_INTERCEPT_STRNLEN 0
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#endif
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#if defined(__linux__) && !defined(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 !defined(ANDROID) && !defined(_WIN32)
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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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// On Darwin siglongjmp tailcalls longjmp, so we don't want to intercept it
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// there.
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#if !defined(_WIN32) && (!defined(__APPLE__) || MAC_INTERPOSE_FUNCTIONS)
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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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#if ASAN_HAS_EXCEPTIONS && !defined(_WIN32)
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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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#define DECLARE_FUNCTION_AND_WRAPPER(ret_type, func, ...) \
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ret_type func(__VA_ARGS__); \
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ret_type WRAP(func)(__VA_ARGS__)
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// Use extern declarations of intercepted functions on Mac and Windows
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// to avoid including system headers.
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#if defined(__APPLE__) || (defined(_WIN32) && !defined(_DLL))
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extern "C" {
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// signal.h
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# if ASAN_INTERCEPT_SIGNAL_AND_SIGACTION
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struct sigaction;
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DECLARE_FUNCTION_AND_WRAPPER(int, sigaction, int sig,
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const struct sigaction *act,
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struct sigaction *oldact);
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DECLARE_FUNCTION_AND_WRAPPER(void*, signal, int signum, void *handler);
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# endif
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// setjmp.h
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DECLARE_FUNCTION_AND_WRAPPER(void, longjmp, void *env, int value);
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# if ASAN_INTERCEPT__LONGJMP
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DECLARE_FUNCTION_AND_WRAPPER(void, _longjmp, void *env, int value);
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# endif
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# if ASAN_INTERCEPT_SIGLONGJMP
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DECLARE_FUNCTION_AND_WRAPPER(void, siglongjmp, void *env, int value);
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# endif
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# if ASAN_INTERCEPT___CXA_THROW
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DECLARE_FUNCTION_AND_WRAPPER(void, __cxa_throw, void *a, void *b, void *c);
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#endif
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// string.h / strings.h
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DECLARE_FUNCTION_AND_WRAPPER(int, memcmp,
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const void *a1, const void *a2, uptr size);
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DECLARE_FUNCTION_AND_WRAPPER(void*, memmove,
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void *to, const void *from, uptr size);
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DECLARE_FUNCTION_AND_WRAPPER(void*, memcpy,
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void *to, const void *from, uptr size);
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DECLARE_FUNCTION_AND_WRAPPER(void*, memset, void *block, int c, uptr size);
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DECLARE_FUNCTION_AND_WRAPPER(char*, strchr, const char *str, int c);
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DECLARE_FUNCTION_AND_WRAPPER(char*, strcat, /* NOLINT */
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char *to, const char* from);
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DECLARE_FUNCTION_AND_WRAPPER(char*, strncat,
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char *to, const char* from, uptr size);
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DECLARE_FUNCTION_AND_WRAPPER(char*, strcpy, /* NOLINT */
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char *to, const char* from);
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DECLARE_FUNCTION_AND_WRAPPER(char*, strncpy,
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char *to, const char* from, uptr size);
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DECLARE_FUNCTION_AND_WRAPPER(int, strcmp, const char *s1, const char* s2);
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DECLARE_FUNCTION_AND_WRAPPER(int, strncmp,
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const char *s1, const char* s2, uptr size);
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DECLARE_FUNCTION_AND_WRAPPER(uptr, strlen, const char *s);
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# if ASAN_INTERCEPT_STRCASECMP_AND_STRNCASECMP
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DECLARE_FUNCTION_AND_WRAPPER(int, strcasecmp, const char *s1, const char *s2);
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DECLARE_FUNCTION_AND_WRAPPER(int, strncasecmp,
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const char *s1, const char *s2, uptr n);
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# endif
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# if ASAN_INTERCEPT_STRDUP
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DECLARE_FUNCTION_AND_WRAPPER(char*, strdup, const char *s);
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# endif
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# if ASAN_INTERCEPT_STRNLEN
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DECLARE_FUNCTION_AND_WRAPPER(uptr, strnlen, const char *s, uptr maxlen);
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# endif
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#if ASAN_INTERCEPT_INDEX
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DECLARE_FUNCTION_AND_WRAPPER(char*, index, const char *string, int c);
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#endif
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// stdlib.h
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DECLARE_FUNCTION_AND_WRAPPER(int, atoi, const char *nptr);
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DECLARE_FUNCTION_AND_WRAPPER(long, atol, const char *nptr); // NOLINT
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DECLARE_FUNCTION_AND_WRAPPER(long, strtol, const char *nptr, char **endptr, int base); // NOLINT
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# if ASAN_INTERCEPT_ATOLL_AND_STRTOLL
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DECLARE_FUNCTION_AND_WRAPPER(long long, atoll, const char *nptr); // NOLINT
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DECLARE_FUNCTION_AND_WRAPPER(long long, strtoll, const char *nptr, char **endptr, int base); // NOLINT
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# endif
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// unistd.h
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# if SANITIZER_INTERCEPT_READ
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DECLARE_FUNCTION_AND_WRAPPER(SSIZE_T, read, int fd, void *buf, SIZE_T count);
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# endif
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# if SANITIZER_INTERCEPT_PREAD
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DECLARE_FUNCTION_AND_WRAPPER(SSIZE_T, pread, int fd, void *buf,
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SIZE_T count, OFF_T offset);
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# endif
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# if SANITIZER_INTERCEPT_PREAD64
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DECLARE_FUNCTION_AND_WRAPPER(SSIZE_T, pread64, int fd, void *buf,
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SIZE_T count, OFF64_T offset);
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# endif
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# if ASAN_INTERCEPT_MLOCKX
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// mlock/munlock
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DECLARE_FUNCTION_AND_WRAPPER(int, mlock, const void *addr, SIZE_T len);
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DECLARE_FUNCTION_AND_WRAPPER(int, munlock, const void *addr, SIZE_T len);
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DECLARE_FUNCTION_AND_WRAPPER(int, mlockall, int flags);
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DECLARE_FUNCTION_AND_WRAPPER(int, munlockall, void);
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# endif
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// Windows threads.
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# if defined(_WIN32)
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__declspec(dllimport)
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void* __stdcall CreateThread(void *sec, uptr st, void* start,
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void *arg, DWORD fl, DWORD *id);
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# endif
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// Posix threads.
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# if ASAN_INTERCEPT_PTHREAD_CREATE
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DECLARE_FUNCTION_AND_WRAPPER(int, pthread_create,
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void *thread, void *attr,
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void *(*start_routine)(void*), void *arg);
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# endif
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#if defined(__APPLE__)
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typedef void* pthread_workqueue_t;
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typedef void* pthread_workitem_handle_t;
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typedef void* dispatch_group_t;
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typedef void* dispatch_queue_t;
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typedef void* dispatch_source_t;
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typedef u64 dispatch_time_t;
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typedef void (*dispatch_function_t)(void *block);
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typedef void* (*worker_t)(void *block);
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typedef void* CFStringRef;
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typedef void* CFAllocatorRef;
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_async_f,
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dispatch_queue_t dq,
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void *ctxt, dispatch_function_t func);
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_sync_f,
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dispatch_queue_t dq,
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void *ctxt, dispatch_function_t func);
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_after_f,
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dispatch_time_t when, dispatch_queue_t dq,
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void *ctxt, dispatch_function_t func);
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_barrier_async_f,
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dispatch_queue_t dq,
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void *ctxt, dispatch_function_t func);
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_group_async_f,
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dispatch_group_t group, dispatch_queue_t dq,
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void *ctxt, dispatch_function_t func);
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DECLARE_FUNCTION_AND_WRAPPER(void, __CFInitialize, void);
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DECLARE_FUNCTION_AND_WRAPPER(CFStringRef, CFStringCreateCopy,
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CFAllocatorRef alloc, CFStringRef str);
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DECLARE_FUNCTION_AND_WRAPPER(void, free, void* ptr);
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#if MAC_INTERPOSE_FUNCTIONS && !defined(MISSING_BLOCKS_SUPPORT)
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_group_async,
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dispatch_group_t dg,
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dispatch_queue_t dq, void (^work)(void));
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_async,
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dispatch_queue_t dq, void (^work)(void));
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_after,
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dispatch_queue_t dq, void (^work)(void));
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_source_set_event_handler,
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dispatch_source_t ds, void (^work)(void));
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DECLARE_FUNCTION_AND_WRAPPER(void, dispatch_source_set_cancel_handler,
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dispatch_source_t ds, void (^work)(void));
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#endif // MAC_INTERPOSE_FUNCTIONS
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#endif // __APPLE__
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} // extern "C"
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#endif
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#endif // ASAN_INTERCEPTED_FUNCTIONS_H
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