libsanitizer/sanitizer_common/sanitizer_posix.h

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