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platform_bionic/libc/include/unistd.h
Irina Tirdea 1ad10a566e Add getsid system call to bionic 
Add getsid() system call to bionic for
all architectures. This is needed for various tools
(e.g. perf).

Adding the getsid system call was done in 3 steps:
() add getsid system call (function name and syscall
number) to libc/SYSCALLS.TXT
() generate all necessary headers by calling
libc/tools/gensyscalls.py. This patch is adding
the generated files since the build system
does not call gensyscalls.py.
() add the system call signature to libc/include/unistd.h

Change-Id: Id69a257e13ec02e1a44085a6b217a3f19ab025b1
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
2012-09-03 01:38:34 +03:00

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/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _UNISTD_H_
#define _UNISTD_H_
#include <stddef.h>
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/select.h>
#include <sys/sysconf.h>
#include <linux/capability.h>
#include <pathconf.h>
__BEGIN_DECLS
/* Standard file descriptor numbers. */
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
/* Values for whence in fseek and lseek */
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
extern char **environ;
extern __noreturn void _exit(int);
extern pid_t fork(void);
extern pid_t vfork(void);
extern pid_t getpid(void);
extern pid_t gettid(void);
extern pid_t getpgid(pid_t);
extern int setpgid(pid_t, pid_t);
extern pid_t getppid(void);
extern pid_t getpgrp(void);
extern int setpgrp(void);
extern pid_t getsid(pid_t);
extern pid_t setsid(void);
extern int execv(const char *, char * const *);
extern int execvp(const char *, char * const *);
extern int execve(const char *, char * const *, char * const *);
extern int execl(const char *, const char *, ...);
extern int execlp(const char *, const char *, ...);
extern int execle(const char *, const char *, ...);
extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
extern int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
/* IMPORTANT: See comment under <sys/prctl.h> about this declaration */
extern int prctl(int option, ...);
extern int nice(int);
extern int setuid(uid_t);
extern uid_t getuid(void);
extern int seteuid(uid_t);
extern uid_t geteuid(void);
extern int setgid(gid_t);
extern gid_t getgid(void);
extern int setegid(gid_t);
extern gid_t getegid(void);
extern int getgroups(int, gid_t *);
extern int setgroups(size_t, const gid_t *);
extern int setreuid(uid_t, uid_t);
extern int setregid(gid_t, gid_t);
extern int setresuid(uid_t, uid_t, uid_t);
extern int setresgid(gid_t, gid_t, gid_t);
extern int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
extern int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
extern int issetugid(void);
extern char* getlogin(void);
extern char* getusershell(void);
extern void setusershell(void);
extern void endusershell(void);
/* Macros for access() */
#define R_OK 4 /* Read */
#define W_OK 2 /* Write */
#define X_OK 1 /* Execute */
#define F_OK 0 /* Existence */
extern int access(const char *, int);
extern int faccessat(int, const char *, int, int);
extern int link(const char *, const char *);
extern int unlink(const char *);
extern int chdir(const char *);
extern int fchdir(int);
extern int rmdir(const char *);
extern int pipe(int *);
#ifdef _GNU_SOURCE /* GLibc compatibility */
extern int pipe2(int *, int);
#endif
extern int chroot(const char *);
extern int symlink(const char *, const char *);
extern int readlink(const char *, char *, size_t);
extern int chown(const char *, uid_t, gid_t);
extern int fchown(int, uid_t, gid_t);
extern int lchown(const char *, uid_t, gid_t);
extern int truncate(const char *, off_t);
extern char *getcwd(char *, size_t);
extern int sync(void);
extern int close(int);
extern off_t lseek(int, off_t, int);
extern off64_t lseek64(int, off64_t, int);
extern ssize_t read(int, void *, size_t);
extern ssize_t write(int, const void *, size_t);
extern ssize_t pread(int, void *, size_t, off_t);
extern ssize_t pread64(int, void *, size_t, off64_t);
extern ssize_t pwrite(int, const void *, size_t, off_t);
extern ssize_t pwrite64(int, const void *, size_t, off64_t);
extern int dup(int);
extern int dup2(int, int);
extern int fcntl(int, int, ...);
extern int ioctl(int, int, ...);
extern int flock(int, int);
extern int fsync(int);
extern int fdatasync(int);
extern int ftruncate(int, off_t);
extern int ftruncate64(int, off64_t);
extern int pause(void);
extern unsigned int alarm(unsigned int);
extern unsigned int sleep(unsigned int);
extern int usleep(unsigned long);
extern int gethostname(char *, size_t);
extern int getdtablesize(void);
extern void *__brk(void *);
extern int brk(void *);
extern void *sbrk(ptrdiff_t);
extern int getopt(int, char * const *, const char *);
extern char *optarg;
extern int optind, opterr, optopt;
extern int isatty(int);
extern char* ttyname(int);
extern int ttyname_r(int, char*, size_t);
extern int acct(const char* filepath);
static __inline__ int getpagesize(void) {
extern unsigned int __page_size;
return __page_size;
}
static __inline__ int __getpageshift(void) {
extern unsigned int __page_shift;
return __page_shift;
}
extern int sysconf(int name);
extern int daemon(int, int);
/* A special syscall that is only available on the ARM, not x86 function. */
extern int cacheflush(long start, long end, long flags);
extern pid_t tcgetpgrp(int fd);
extern int tcsetpgrp(int fd, pid_t _pid);
#if 0 /* MISSING FROM BIONIC */
extern int execvpe(const char *, char * const *, char * const *);
extern int execlpe(const char *, const char *, ...);
extern int getfsuid(uid_t);
extern int setfsuid(uid_t);
extern int getlogin_r(char* name, size_t namesize);
extern int sethostname(const char *, size_t);
extern int getdomainname(char *, size_t);
extern int setdomainname(const char *, size_t);
#endif /* MISSING */
/* Used to retry syscalls that can return EINTR. */
#define TEMP_FAILURE_RETRY(exp) ({ \
typeof (exp) _rc; \
do { \
_rc = (exp); \
} while (_rc == -1 && errno == EINTR); \
_rc; })
__END_DECLS
#endif /* _UNISTD_H_ */
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