contrib/compiler-rt/lib/sanitizer_common/sanitizer_posix.h

   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 #include "sanitizer_platform_limits_netbsd.h"
  20 #include "sanitizer_platform_limits_openbsd.h"
  21 #include "sanitizer_platform_limits_posix.h"
  22 #include "sanitizer_platform_limits_solaris.h"
  23
  24 #if !SANITIZER_POSIX
  25 // Make it hard to accidentally use any of functions declared in this file:
  26 #error This file should only be included on POSIX
  27 #endif
  28
  29 namespace __sanitizer {
  30
  31 // I/O
  32 // Don't use directly, use __sanitizer::OpenFile() instead.
  33 uptr internal_open(const char *filename, int flags);
  34 uptr internal_open(const char *filename, int flags, u32 mode);
  35 uptr internal_close(fd_t fd);
  36
  37 uptr internal_read(fd_t fd, void *buf, uptr count);
  38 uptr internal_write(fd_t fd, const void *buf, uptr count);
  39
  40 // Memory
  41 uptr internal_mmap(void *addr, uptr length, int prot, int flags,
  42                    int fd, OFF_T offset);
  43 uptr internal_munmap(void *addr, uptr length);
  44 int internal_mprotect(void *addr, uptr length, int prot);
  45
  46 // OS
  47 uptr internal_filesize(fd_t fd);  // -1 on error.
  48 uptr internal_stat(const char *path, void *buf);
  49 uptr internal_lstat(const char *path, void *buf);
  50 uptr internal_fstat(fd_t fd, void *buf);
  51 uptr internal_dup2(int oldfd, int newfd);
  52 uptr internal_readlink(const char *path, char *buf, uptr bufsize);
  53 uptr internal_unlink(const char *path);
  54 uptr internal_rename(const char *oldpath, const char *newpath);
  55 uptr internal_lseek(fd_t fd, OFF_T offset, int whence);
  56
  57 uptr internal_ptrace(int request, int pid, void *addr, void *data);
  58 uptr internal_waitpid(int pid, int *status, int options);
  59
  60 int internal_fork();
  61 int internal_forkpty(int *amaster);
  62
  63 // These functions call appropriate pthread_ functions directly, bypassing
  64 // the interceptor. They are weak and may not be present in some tools.
  65 SANITIZER_WEAK_ATTRIBUTE
  66 int real_pthread_create(void *th, void *attr, void *(*callback)(void *),
  67                         void *param);
  68 SANITIZER_WEAK_ATTRIBUTE
  69 int real_pthread_join(void *th, void **ret);
  70
  71 #define DEFINE_REAL_PTHREAD_FUNCTIONS                                          \
  72   namespace __sanitizer {                                                      \
  73   int real_pthread_create(void *th, void *attr, void *(*callback)(void *),     \
  74                           void *param) {                                       \
  75     return REAL(pthread_create)(th, attr, callback, param);                    \
  76   }                                                                            \
  77   int real_pthread_join(void *th, void **ret) {                                \
  78     return REAL(pthread_join(th, ret));                                        \
  79   }                                                                            \
  80   }  // namespace __sanitizer
  81
  82 int my_pthread_attr_getstack(void *attr, void **addr, uptr *size);
  83
  84 // A routine named real_sigaction() must be implemented by each sanitizer in
  85 // order for internal_sigaction() to bypass interceptors.
  86 int internal_sigaction(int signum, const void *act, void *oldact);
  87 void internal_sigfillset(__sanitizer_sigset_t *set);
  88 void internal_sigemptyset(__sanitizer_sigset_t *set);
  89 bool internal_sigismember(__sanitizer_sigset_t *set, int signum);
  90
  91 uptr internal_execve(const char *filename, char *const argv[],
  92                      char *const envp[]);
  93
  94 bool IsStateDetached(int state);
  95
  96 }  // namespace __sanitizer
  97
  98 #endif  // SANITIZER_POSIX_H