sanitizer_posix.h revision 296417 
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, OFF_T 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();
57int 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.
61SANITIZER_WEAK_ATTRIBUTE
62int real_pthread_create(void *th, void *attr, void *(*callback)(void *),
63                        void *param);
64SANITIZER_WEAK_ATTRIBUTE
65int 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
78int my_pthread_attr_getstack(void *attr, void **addr, uptr *size);
79
80int internal_sigaction(int signum, const void *act, void *oldact);
81
82}  // namespace __sanitizer
83
84#endif  // SANITIZER_POSIX_H
85