fb50da9dad
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.
235 lines
7.8 KiB
C
235 lines
7.8 KiB
C
/* $NetBSD: time.h,v 1.40 2010/12/16 18:36:47 christos Exp $ */
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)time.h 8.3 (Berkeley) 1/21/94
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*/
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#ifndef _TIME_H_
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#define _TIME_H_
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#include <sys/cdefs.h>
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#include <sys/featuretest.h>
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#include <machine/ansi.h>
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#include <sys/null.h>
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#ifdef _BSD_CLOCK_T_
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typedef _BSD_CLOCK_T_ clock_t;
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#undef _BSD_CLOCK_T_
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#endif
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#ifdef _BSD_TIME_T_
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typedef _BSD_TIME_T_ time_t;
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#undef _BSD_TIME_T_
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#endif
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#ifdef _BSD_SIZE_T_
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typedef _BSD_SIZE_T_ size_t;
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#undef _BSD_SIZE_T_
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#endif
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#ifdef _BSD_CLOCKID_T_
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typedef _BSD_CLOCKID_T_ clockid_t;
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#undef _BSD_CLOCKID_T_
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#endif
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#ifndef __minix
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#ifdef _BSD_TIMER_T_
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typedef _BSD_TIMER_T_ timer_t;
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#undef _BSD_TIMER_T_
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#endif
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#endif /* !__minix */
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#ifdef __minix
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#define CLOCKS_PER_SEC 60
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#else
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#define CLOCKS_PER_SEC 100
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#endif
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struct tm {
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int tm_sec; /* seconds after the minute [0-61] */
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int tm_min; /* minutes after the hour [0-59] */
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int tm_hour; /* hours since midnight [0-23] */
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int tm_mday; /* day of the month [1-31] */
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int tm_mon; /* months since January [0-11] */
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int tm_year; /* years since 1900 */
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int tm_wday; /* days since Sunday [0-6] */
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int tm_yday; /* days since January 1 [0-365] */
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int tm_isdst; /* Daylight Savings Time flag */
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long tm_gmtoff; /* offset from UTC in seconds */
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__aconst char *tm_zone; /* timezone abbreviation */
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};
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__BEGIN_DECLS
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char *asctime(const struct tm *);
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clock_t clock(void);
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#ifndef __LIBC12_SOURCE__
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char *ctime(const time_t *) __RENAME(__ctime50);
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double difftime(time_t, time_t) __RENAME(__difftime50);
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struct tm *gmtime(const time_t *) __RENAME(__gmtime50);
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#ifndef __MINIX
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struct tm *localtime(const time_t *) __RENAME(__locatime50);
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#else
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struct tm *localtime(const time_t *) __RENAME(__localtime50);
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#endif
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time_t time(time_t *) __RENAME(__time50);
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time_t mktime(struct tm *) __RENAME(__mktime50);
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#endif
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size_t strftime(char * __restrict, size_t, const char * __restrict,
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const struct tm * __restrict)
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__attribute__((__format__(__strftime__, 3, 0)));
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#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
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defined(_NETBSD_SOURCE)
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#ifndef __LIBC12_SOURCE__
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/*
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* CLK_TCK uses libc's internal __sysconf() to retrieve the machine's
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* HZ. The value of _SC_CLK_TCK is 39 -- we hard code it so we do not
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* need to include unistd.h
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*/
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long __sysconf(int);
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#ifdef __minix
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#define CLK_TCK (__sysconf(3))
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#else
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#define CLK_TCK (__sysconf(39))
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#endif /* !__minix */
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#endif
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#endif
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extern __aconst char *tzname[2];
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#ifndef __LIBC12_SOURCE__
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void tzset(void) __RENAME(__tzset50);
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#endif
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/*
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* X/Open Portability Guide >= Issue 4
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*/
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#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
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extern int daylight;
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#ifndef __LIBC12_SOURCE__
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extern long int timezone __RENAME(__timezone13);
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#endif
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char *strptime(const char * __restrict, const char * __restrict,
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struct tm * __restrict);
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#endif
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#if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
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defined(_NETBSD_SOURCE)
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struct tm *getdate(const char *);
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extern int getdate_err;
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#endif
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#if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \
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defined(_NETBSD_SOURCE)
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#include <sys/time.h> /* XXX for struct timespec */
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struct sigevent;
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struct itimerspec;
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#ifndef __LIBC12_SOURCE__
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#ifndef __minix
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int clock_getres(clockid_t, struct timespec *)
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__RENAME(__clock_getres50);
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int clock_gettime(clockid_t, struct timespec *)
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__RENAME(__clock_gettime50);
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int clock_settime(clockid_t, const struct timespec *)
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__RENAME(__clock_settime50);
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#endif /* !__minix */
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int nanosleep(const struct timespec *, struct timespec *)
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__RENAME(__nanosleep50);
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#ifndef __minix
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int timer_gettime(timer_t, struct itimerspec *) __RENAME(__timer_gettime50);
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int timer_settime(timer_t, int, const struct itimerspec * __restrict,
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struct itimerspec * __restrict) __RENAME(__timer_settime50);
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#endif /* !__minix */
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#endif
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#ifndef __minix
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int timer_create(clockid_t, struct sigevent * __restrict,
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timer_t * __restrict);
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int timer_delete(timer_t);
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int timer_getoverrun(timer_t);
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#endif /* __minix */
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#endif /* _POSIX_C_SOURCE >= 199309 || _XOPEN_SOURCE >= 500 || ... */
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#if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
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defined(_REENTRANT) || defined(_NETBSD_SOURCE)
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char *asctime_r(const struct tm * __restrict, char * __restrict);
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#ifndef __LIBC12_SOURCE__
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char *ctime_r(const time_t *, char *) __RENAME(__ctime_r50);
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struct tm *gmtime_r(const time_t * __restrict, struct tm * __restrict)
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__RENAME(__gmtime_r50);
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struct tm *localtime_r(const time_t * __restrict, struct tm * __restrict)
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__RENAME(__localtime_r50);
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#endif
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#endif
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#if defined(_NETBSD_SOURCE)
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typedef struct __state *timezone_t;
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#ifndef __LIBC12_SOURCE__
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time_t time2posix(time_t) __RENAME(__time2posix50);
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time_t posix2time(time_t) __RENAME(__posix2time50);
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time_t timegm(struct tm *) __RENAME(__timegm50);
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time_t timeoff(struct tm *, long) __RENAME(__timeoff50);
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time_t timelocal(struct tm *) __RENAME(__timelocal50);
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struct tm *offtime(const time_t *, long) __RENAME(__offtime50);
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void tzsetwall(void) __RENAME(__tzsetwall50);
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struct tm *offtime_r(const time_t *, long, struct tm *) __RENAME(__offtime_r50);
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struct tm *localtime_rz(const timezone_t, const time_t * __restrict,
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struct tm * __restrict) __RENAME(__localtime_rz50);
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char *ctime_rz(const timezone_t, const time_t *, char *) __RENAME(__ctime_rz50);
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time_t mktime_z(const timezone_t, struct tm *) __RENAME(__mktime_z50);
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time_t timelocal_z(const timezone_t, struct tm *) __RENAME(__timelocal_z50);
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time_t time2posix_z(const timezone_t, time_t) __RENAME(__time2posix_z50);
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time_t posix2time_z(const timezone_t, time_t) __RENAME(__posix2time_z50);
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timezone_t tzalloc(const char *) __RENAME(__tzalloc50);
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void tzfree(const timezone_t) __RENAME(__tzfree50);
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const char *tzgetname(const timezone_t, int) __RENAME(__tzgetname50);
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#endif
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size_t strftime_z(const timezone_t, char * __restrict, size_t,
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const char * __restrict, const struct tm * __restrict)
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__attribute__((__format__(__strftime__, 4, 0)));
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#endif /* _NETBSD_SOURCE */
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#ifdef _MINIX
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int stime(time_t *_top);
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#endif /* _MINIX */
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__END_DECLS
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#endif /* !_TIME_H_ */
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