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 25 namespace __sanitizer { 26 27 // I/O 28 // Don't use directly, use __sanitizer::OpenFile() instead. 29 uptr internal_open(const char *filename, int flags); 30 uptr internal_open(const char *filename, int flags, u32 mode); 31 uptr internal_close(fd_t fd); 32 33 uptr internal_read(fd_t fd, void *buf, uptr count); 34 uptr internal_write(fd_t fd, const void *buf, uptr count); 35 36 // Memory 37 uptr internal_mmap(void *addr, uptr length, int prot, int flags, 38 int fd, OFF_T offset); 39 uptr internal_munmap(void *addr, uptr length); 40 int internal_mprotect(void *addr, uptr length, int prot); 41 42 // OS 43 uptr internal_filesize(fd_t fd); // -1 on error. 44 uptr internal_stat(const char *path, void *buf); 45 uptr internal_lstat(const char *path, void *buf); 46 uptr internal_fstat(fd_t fd, void *buf); 47 uptr internal_dup2(int oldfd, int newfd); 48 uptr internal_readlink(const char *path, char *buf, uptr bufsize); 49 uptr internal_unlink(const char *path); 50 uptr internal_rename(const char *oldpath, const char *newpath); 51 uptr internal_lseek(fd_t fd, OFF_T offset, int whence); 52 53 uptr internal_ptrace(int request, int pid, void *addr, void *data); 54 uptr internal_waitpid(int pid, int *status, int options); 55 56 int internal_fork(); 57 int internal_forkpty(int *amaster); 58 59 // These functions call appropriate pthread_ functions directly, bypassing 60 // the interceptor. They are weak and may not be present in some tools. 61 SANITIZER_WEAK_ATTRIBUTE 62 int real_pthread_create(void *th, void *attr, void *(*callback)(void *), 63 void *param); 64 SANITIZER_WEAK_ATTRIBUTE 65 int real_pthread_join(void *th, void **ret); 66 67 #define DEFINE_REAL_PTHREAD_FUNCTIONS \ 68 namespace __sanitizer { \ 69 int real_pthread_create(void *th, void *attr, void *(*callback)(void *), \ 70 void *param) { \ 71 return REAL(pthread_create)(th, attr, callback, param); \ 72 } \ 73 int real_pthread_join(void *th, void **ret) { \ 74 return REAL(pthread_join(th, ret)); \ 75 } \ 76 } // namespace __sanitizer 77 78 int my_pthread_attr_getstack(void *attr, void **addr, uptr *size); 79 80 int internal_sigaction(int signum, const void *act, void *oldact); 81 82 } // namespace __sanitizer 83 84 #endif // SANITIZER_POSIX_H 85