1 //===-- sanitizer_posix.h -------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
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
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_freebsd.h"
20 #include "sanitizer_platform_limits_netbsd.h"
21 #include "sanitizer_platform_limits_openbsd.h"
22 #include "sanitizer_platform_limits_posix.h"
23 #include "sanitizer_platform_limits_solaris.h"
26 // Make it hard to accidentally use any of functions declared in this file:
27 #error This file should only be included on POSIX
30 namespace __sanitizer {
33 // Don't use directly, use __sanitizer::OpenFile() instead.
34 uptr internal_open(const char *filename, int flags);
35 uptr internal_open(const char *filename, int flags, u32 mode);
36 uptr internal_close(fd_t fd);
38 uptr internal_read(fd_t fd, void *buf, uptr count);
39 uptr internal_write(fd_t fd, const void *buf, uptr count);
42 uptr internal_mmap(void *addr, uptr length, int prot, int flags,
43 int fd, OFF_T offset);
44 uptr internal_munmap(void *addr, uptr length);
45 int internal_mprotect(void *addr, uptr length, int prot);
48 uptr internal_filesize(fd_t fd); // -1 on error.
49 uptr internal_stat(const char *path, void *buf);
50 uptr internal_lstat(const char *path, void *buf);
51 uptr internal_fstat(fd_t fd, void *buf);
52 uptr internal_dup(int oldfd);
53 uptr internal_dup2(int oldfd, int newfd);
54 uptr internal_readlink(const char *path, char *buf, uptr bufsize);
55 uptr internal_unlink(const char *path);
56 uptr internal_rename(const char *oldpath, const char *newpath);
57 uptr internal_lseek(fd_t fd, OFF_T offset, int whence);
59 uptr internal_ptrace(int request, int pid, void *addr, void *data);
60 uptr internal_waitpid(int pid, int *status, int options);
63 int internal_forkpty(int *amaster);
65 int internal_sysctl(const int *name, unsigned int namelen, void *oldp,
66 uptr *oldlenp, const void *newp, uptr newlen);
67 int internal_sysctlbyname(const char *sname, void *oldp, uptr *oldlenp,
68 const void *newp, uptr newlen);
70 // These functions call appropriate pthread_ functions directly, bypassing
71 // the interceptor. They are weak and may not be present in some tools.
72 SANITIZER_WEAK_ATTRIBUTE
73 int real_pthread_create(void *th, void *attr, void *(*callback)(void *),
75 SANITIZER_WEAK_ATTRIBUTE
76 int real_pthread_join(void *th, void **ret);
78 #define DEFINE_REAL_PTHREAD_FUNCTIONS \
79 namespace __sanitizer { \
80 int real_pthread_create(void *th, void *attr, void *(*callback)(void *), \
82 return REAL(pthread_create)(th, attr, callback, param); \
84 int real_pthread_join(void *th, void **ret) { \
85 return REAL(pthread_join(th, ret)); \
87 } // namespace __sanitizer
89 int my_pthread_attr_getstack(void *attr, void **addr, uptr *size);
91 // A routine named real_sigaction() must be implemented by each sanitizer in
92 // order for internal_sigaction() to bypass interceptors.
93 int internal_sigaction(int signum, const void *act, void *oldact);
94 void internal_sigfillset(__sanitizer_sigset_t *set);
95 void internal_sigemptyset(__sanitizer_sigset_t *set);
96 bool internal_sigismember(__sanitizer_sigset_t *set, int signum);
98 uptr internal_execve(const char *filename, char *const argv[],
101 bool IsStateDetached(int state);
103 // Move the fd out of {0, 1, 2} range.
104 fd_t ReserveStandardFds(fd_t fd);
106 bool ShouldMockFailureToOpen(const char *path);
108 } // namespace __sanitizer
110 #endif // SANITIZER_POSIX_H