1//===-- sanitizer_posix.h -------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file is shared between AddressSanitizer and ThreadSanitizer 11// run-time libraries and declares some useful POSIX-specific functions. 12//===----------------------------------------------------------------------===// 13#ifndef SANITIZER_POSIX_H 14#define SANITIZER_POSIX_H 15 16// ----------- ATTENTION ------------- 17// This header should NOT include any other headers from sanitizer runtime. 18#include "sanitizer_internal_defs.h" 19 20#if !SANITIZER_POSIX 21// Make it hard to accidentally use any of functions declared in this file: 22#error This file should only be included on POSIX 23#endif 24 25namespace __sanitizer { 26 27// I/O 28// Don't use directly, use __sanitizer::OpenFile() instead. 29uptr internal_open(const char *filename, int flags); 30uptr internal_open(const char *filename, int flags, u32 mode); 31uptr internal_close(fd_t fd); 32 33uptr internal_read(fd_t fd, void *buf, uptr count); 34uptr internal_write(fd_t fd, const void *buf, uptr count); 35 36// Memory 37uptr internal_mmap(void *addr, uptr length, int prot, int flags, 38 int fd, u64 offset); 39uptr internal_munmap(void *addr, uptr length); 40int internal_mprotect(void *addr, uptr length, int prot); 41 42// OS 43uptr internal_filesize(fd_t fd); // -1 on error. 44uptr internal_stat(const char *path, void *buf); 45uptr internal_lstat(const char *path, void *buf); 46uptr internal_fstat(fd_t fd, void *buf); 47uptr internal_dup2(int oldfd, int newfd); 48uptr internal_readlink(const char *path, char *buf, uptr bufsize); 49uptr internal_unlink(const char *path); 50uptr internal_rename(const char *oldpath, const char *newpath); 51uptr internal_lseek(fd_t fd, OFF_T offset, int whence); 52 53uptr internal_ptrace(int request, int pid, void *addr, void *data); 54uptr internal_waitpid(int pid, int *status, int options); 55 56int internal_fork(); 57 58// These functions call appropriate pthread_ functions directly, bypassing 59// the interceptor. They are weak and may not be present in some tools. 60SANITIZER_WEAK_ATTRIBUTE 61int real_pthread_create(void *th, void *attr, void *(*callback)(void *), 62 void *param); 63SANITIZER_WEAK_ATTRIBUTE 64int real_pthread_join(void *th, void **ret); 65 66#define DEFINE_REAL_PTHREAD_FUNCTIONS \ 67 namespace __sanitizer { \ 68 int real_pthread_create(void *th, void *attr, void *(*callback)(void *), \ 69 void *param) { \ 70 return REAL(pthread_create)(th, attr, callback, param); \ 71 } \ 72 int real_pthread_join(void *th, void **ret) { \ 73 return REAL(pthread_join(th, ret)); \ 74 } \ 75 } // namespace __sanitizer 76 77int internal_sigaction(int signum, const void *act, void *oldact); 78 79} // namespace __sanitizer 80 81#endif // SANITIZER_POSIX_H 82