minix/nbsd_include/unistd.h
Thomas Veerman fb50da9dad Fine grained compatibility with _RENAMEd symbols
The NetBSD libc provides a mechanism to have versions of system calls.
By 'renaming' symbols to a new version, freshly compiled programs will
automatically use the new symbol iff they use the proper header files. The
old, not renamed, version of the symbol will still exist (after being moved
to the compat directory), so old programs can still link.

Since MINIX doesn't support dynamic linking, the whole rename mechanism
doesn't really work for us. However, removing it would create a huge diff
with the current NetBSD libc.

A lot of the compat code relies on things we don't (seem to) have, and
therefore does not get built and linked. This causes trouble for tools like
autoconf, which will fail to find the renamed symbols. For example,
currently select gets renamed to __select50 in libc. Autoconf looks for
'select' and doesn't find it and reports we don't have it. This is where
the compat.S stub comes into play: it generates the old symbols and jumps to
the new symbols. However, as this is done in one object file, all renamed
symbols get linked together, causing binaries to be huge. This patch fixes
that by generating an object file for each renamed symbol.

This patch also makes the MISSING_SYSCALLS more complete and marginally
reduces the diff with NetBSD.
2011-11-28 10:12:44 +00:00

418 lines
13 KiB
C

/* $NetBSD: unistd.h,v 1.125 2011/01/19 19:21:29 christos Exp $ */
/*-
* Copyright (c) 1998, 1999, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Klaus Klein.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)unistd.h 8.12 (Berkeley) 4/27/95
*/
#ifndef _UNISTD_H_
#define _UNISTD_H_
#include <machine/ansi.h>
#include <machine/int_types.h>
#include <sys/cdefs.h>
#include <sys/featuretest.h>
#include <sys/types.h>
#include <sys/unistd.h>
#if _FORTIFY_SOURCE > 0
#include <ssp/unistd.h>
#endif
/*
* IEEE Std 1003.1-90
*/
#define STDIN_FILENO 0 /* standard input file descriptor */
#define STDOUT_FILENO 1 /* standard output file descriptor */
#define STDERR_FILENO 2 /* standard error file descriptor */
#include <sys/null.h>
__BEGIN_DECLS
__dead void _exit(int);
int access(const char *, int);
unsigned int alarm(unsigned int);
int chdir(const char *);
#if !defined(__minix) && (defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE))
int chown(const char *, uid_t, gid_t) __RENAME(__posix_chown);
#else
int chown(const char *, uid_t, gid_t);
#endif /* defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) */
int close(int);
size_t confstr(int, char *, size_t);
#ifndef __CUSERID_DECLARED
#define __CUSERID_DECLARED
/* also declared in stdio.h */
char *cuserid(char *); /* obsolete */
#endif /* __CUSERID_DECLARED */
int dup(int);
int dup2(int, int);
int execl(const char *, const char *, ...);
int execle(const char *, const char *, ...);
int execlp(const char *, const char *, ...);
int execv(const char *, char * const *);
int execve(const char *, char * const *, char * const *);
int execvp(const char *, char * const *);
pid_t fork(void);
long fpathconf(int, int);
#if __SSP_FORTIFY_LEVEL == 0
char *getcwd(char *, size_t);
#endif
gid_t getegid(void);
uid_t geteuid(void);
gid_t getgid(void);
int getgroups(int, gid_t []);
__aconst char *getlogin(void);
int getlogin_r(char *, size_t);
pid_t getpgrp(void);
pid_t getpid(void);
pid_t getppid(void);
uid_t getuid(void);
int isatty(int);
int link(const char *, const char *);
long pathconf(const char *, int);
int pause(void);
int pipe(int *);
#if __SSP_FORTIFY_LEVEL == 0
ssize_t read(int, void *, size_t);
#endif
int rmdir(const char *);
int setgid(gid_t);
#ifndef __minix
int setpgid(pid_t, pid_t);
#endif /* !__minix */
pid_t setsid(void);
int setuid(uid_t);
unsigned int sleep(unsigned int);
long sysconf(int);
pid_t tcgetpgrp(int);
int tcsetpgrp(int, pid_t);
__aconst char *ttyname(int);
int unlink(const char *);
ssize_t write(int, const void *, size_t);
/*
* IEEE Std 1003.2-92, adopted in X/Open Portability Guide Issue 4 and later
*/
#if (_POSIX_C_SOURCE - 0) >= 2 || defined(_XOPEN_SOURCE) || \
defined(_NETBSD_SOURCE)
int getopt(int, char * const [], const char *);
extern char *optarg; /* getopt(3) external variables */
extern int opterr;
extern int optind;
extern int optopt;
#endif
/*
* The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX)
*/
#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 600 || \
defined(_NETBSD_SOURCE)
int setegid(gid_t);
int seteuid(uid_t);
#endif
/*
* The following three syscalls are also defined in <sys/types.h>
* We protect them against double declarations.
*/
#ifndef __OFF_T_SYSCALLS_DECLARED
#define __OFF_T_SYSCALLS_DECLARED
off_t lseek(int, off_t, int);
int truncate(const char *, off_t);
/*
* IEEE Std 1003.1b-93,
* also found in X/Open Portability Guide >= Issue 4 Verion 2
*/
#if (_POSIX_C_SOURCE - 0) >= 199309L || \
(defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
(_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
int ftruncate(int, off_t);
#endif
#endif /* __OFF_T_SYSCALLS_DECLARED */
/*
* IEEE Std 1003.1b-93, adopted in X/Open CAE Specification Issue 5 Version 2
*/
#if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \
defined(_NETBSD_SOURCE)
#ifndef __minix
int fdatasync(int);
#endif /* !__minix */
int fsync(int);
#endif
/*
* IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
*/
#if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
defined(_REENTRANT) || defined(_NETBSD_SOURCE)
int ttyname_r(int, char *, size_t);
int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
#endif
/*
* X/Open Portability Guide, all issues
*/
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
int chroot(const char *);
int nice(int);
#endif
/*
* X/Open Portability Guide >= Issue 4
*/
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
__aconst char *crypt(const char *, const char *);
int encrypt(char *, int);
char *getpass(const char *);
pid_t getsid(pid_t);
#endif
/*
* X/Open Portability Guide >= Issue 4 Version 2
*/
#if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
(_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
#ifndef intptr_t
typedef __intptr_t intptr_t;
#define intptr_t __intptr_t
#endif
#define F_ULOCK 0
#define F_LOCK 1
#define F_TLOCK 2
#define F_TEST 3
int brk(void *);
int fchdir(int);
#if !defined(__minix) && defined(_XOPEN_SOURCE)
int fchown(int, uid_t, gid_t) __RENAME(__posix_fchown);
#else
int fchown(int, uid_t, gid_t);
#endif
int getdtablesize(void);
long gethostid(void);
int gethostname(char *, size_t);
__pure int
getpagesize(void); /* legacy */
#ifndef __minix
pid_t getpgid(pid_t);
#endif /* !__minix */
#ifndef __minix
#if defined(_XOPEN_SOURCE)
int lchown(const char *, uid_t, gid_t) __RENAME(__posix_lchown);
#else
int lchown(const char *, uid_t, gid_t);
#endif
#endif /* !__minix */
int lockf(int, int, off_t);
#if __SSP_FORTIFY_LEVEL == 0
ssize_t readlink(const char * __restrict, char * __restrict, size_t);
#endif
void *sbrk(intptr_t);
#ifndef __minix
/* XXX prototype wrong! */
int setpgrp(pid_t, pid_t); /* obsoleted by setpgid() */
int setregid(gid_t, gid_t);
int setreuid(uid_t, uid_t);
#endif /* !__minix */
void swab(const void * __restrict, void * __restrict, ssize_t);
int symlink(const char *, const char *);
void sync(void);
useconds_t ualarm(useconds_t, useconds_t);
int usleep(useconds_t);
#ifndef __LIBC12_SOURCE__
pid_t vfork(void) __RENAME(__vfork14);
#endif
#ifndef __AUDIT__
char *getwd(char *); /* obsoleted by getcwd() */
#endif
#endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
/*
* X/Open CAE Specification Issue 5 Version 2
*/
#if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
ssize_t pread(int, void *, size_t, off_t);
ssize_t pwrite(int, const void *, size_t, off_t);
#endif
/*
* Implementation-defined extensions
*/
#ifdef __minix
int lseek64(int fd, u64_t _offset, int _whence, u64_t *_newpos);
#if defined(_MINIX)
#include <minix/type.h>
int getsigset(sigset_t *sigset);
int getprocnr(void);
int getnprocnr(pid_t pid);
int getpprocnr(void);
int _pm_findproc(char *proc_name, int *proc_nr);
int mapdriver(char *label, int major, int style, int flags);
int adddma(endpoint_t proc_e, phys_bytes start, phys_bytes size);
int deldma(endpoint_t proc_e, phys_bytes start, phys_bytes size);
int getdma(endpoint_t *procp, phys_bytes *basep, phys_bytes *sizep);
pid_t getnpid(endpoint_t proc_ep);
uid_t getnuid(endpoint_t proc_ep);
gid_t getngid(endpoint_t proc_ep);
int getnucred(endpoint_t proc_ep, struct ucred *ucred);
ssize_t pread64(int fd, void *buf, size_t count, u64_t where);
ssize_t pwrite64(int fd, const void *buf, size_t count, u64_t where);
#endif /* __MINIX */
#endif /* __minix */
#if defined(_NETBSD_SOURCE)
#ifndef __minix
int acct(const char *);
#endif /* !__minix */
int closefrom(int);
int des_cipher(const char *, char *, long, int);
int des_setkey(const char *);
void endusershell(void);
int exect(const char *, char * const *, char * const *);
int fchroot(int);
int fsync_range(int, int, off_t, off_t);
int getdomainname(char *, size_t);
int getgrouplist(const char *, gid_t, gid_t *, int *);
int getgroupmembership(const char *, gid_t, gid_t *, int, int *);
mode_t getmode(const void *, mode_t);
int getpeereid(int, uid_t *, gid_t *);
int getsubopt(char **, char * const *, char **);
__aconst char *getusershell(void);
int initgroups(const char *, gid_t);
int iruserok(uint32_t, int, const char *, const char *);
int issetugid(void);
int nfssvc(int, void *);
#ifndef __minix
int profil(char *, size_t, u_long, u_int);
#endif /* !__minix */
#ifndef __PSIGNAL_DECLARED
#define __PSIGNAL_DECLARED
/* also in signal.h */
void psignal(int, const char *);
#endif /* __PSIGNAL_DECLARED */
int rcmd(char **, int, const char *, const char *, const char *, int *);
#ifdef __minix
int reboot(int, ...);
#else
int reboot(int, char *);
#endif
#ifndef __minix
int revoke(const char *);
#endif
int rresvport(int *);
int ruserok(const char *, int, const char *, const char *);
int setdomainname(const char *, size_t);
int setgroups(int, const gid_t *);
int sethostid(long);
int sethostname(const char *, size_t);
int setlogin(const char *);
void *setmode(const char *);
int setrgid(gid_t);
int setruid(uid_t);
void setusershell(void);
void strmode(mode_t, char *);
#ifndef __STRSIGNAL_DECLARED
#define __STRSIGNAL_DECLARED
/* backwards-compatibility; also in string.h */
__aconst char *strsignal(int);
#endif /* __STRSIGNAL_DECLARED */
#ifndef __minix
int swapctl(int, void *, int);
int swapon(const char *); /* obsoleted by swapctl() */
#endif /* !__minix */
int syscall(int, ...);
quad_t __syscall(quad_t, ...);
int undelete(const char *);
#if 1 /*INET6*/
int rcmd_af(char **, int, const char *,
const char *, const char *, int *, int);
int rresvport_af(int *, int);
int iruserok_sa(const void *, int, int, const char *, const char *);
#endif
#ifndef __SYS_SIGLIST_DECLARED
#define __SYS_SIGLIST_DECLARED
/* also in signal.h */
extern const char *const *sys_siglist __RENAME(__sys_siglist14);
#endif /* __SYS_SIGLIST_DECLARED */
extern int optreset; /* getopt(3) external variable */
extern char *suboptarg; /* getsubopt(3) external variable */
#endif
__END_DECLS
#ifdef __minix
/* Minix expects RBT_* flags to be included with <unistd.h> */
#include <sys/reboot.h>
#endif
#endif /* !_UNISTD_H_ */