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5b813f1a2a
Prior to this change we would assume the ABI for Apple targets to be GNU which could result in subtle errors in LLVM emitting calls to non-existent system libc provided functions such as `_sincosf` which is a GNU extension and as such is not provided by macOS for example. This would result in linker errors where the linker would not be able to find the said symbol in `libSystem.tbd`. With this change, we now correctly identify macOS (and other Apple platforms) as having ABI `unknown` which translates to unspecified in LLVM under-the-hood: ``` // main.ll target triple = "aarch64-unknown-macos-unknown" ``` Note however that we never suffix the target OS with target version such as `macos11` or `macos12` which means we fail to instruct LLVM of potential optimisations provided by the OS such as the availability of function `___sincosf_stret`. I suggest we investigate that in a follow-up commit.
208 lines
7.9 KiB
C++
Vendored
208 lines
7.9 KiB
C++
Vendored
/*
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* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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 <_types.h>
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#include <sys/cdefs.h>
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#include <Availability.h>
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#include <sys/_types/_clock_t.h>
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#include <sys/_types/_null.h>
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#include <sys/_types/_size_t.h>
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#include <sys/_types/_time_t.h>
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#include <sys/_types/_timespec.h>
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struct tm {
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int tm_sec; /* seconds after the minute [0-60] */
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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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char *tm_zone; /* timezone abbreviation */
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};
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#if __DARWIN_UNIX03
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#define CLOCKS_PER_SEC 1000000 /* [XSI] */
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#else /* !__DARWIN_UNIX03 */
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#include <machine/_limits.h> /* Include file containing CLK_TCK. */
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#define CLOCKS_PER_SEC (__DARWIN_CLK_TCK)
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#endif /* __DARWIN_UNIX03 */
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#ifndef _ANSI_SOURCE
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extern char *tzname[];
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#endif
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extern int getdate_err;
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#if __DARWIN_UNIX03
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extern long timezone __DARWIN_ALIAS(timezone);
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#endif /* __DARWIN_UNIX03 */
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extern int daylight;
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__BEGIN_DECLS
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char *asctime(const struct tm *);
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clock_t clock(void) __DARWIN_ALIAS(clock);
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char *ctime(const time_t *);
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double difftime(time_t, time_t);
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struct tm *getdate(const char *);
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struct tm *gmtime(const time_t *);
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struct tm *localtime(const time_t *);
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time_t mktime(struct tm *) __DARWIN_ALIAS(mktime);
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size_t strftime(char * __restrict, size_t, const char * __restrict, const struct tm * __restrict) __DARWIN_ALIAS(strftime);
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char *strptime(const char * __restrict, const char * __restrict, struct tm * __restrict) __DARWIN_ALIAS(strptime);
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time_t time(time_t *);
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#ifndef _ANSI_SOURCE
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void tzset(void);
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#endif /* not ANSI */
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/* [TSF] Thread safe functions */
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char *asctime_r(const struct tm * __restrict, char * __restrict);
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char *ctime_r(const time_t *, char *);
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struct tm *gmtime_r(const time_t * __restrict, struct tm * __restrict);
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struct tm *localtime_r(const time_t * __restrict, struct tm * __restrict);
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#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
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time_t posix2time(time_t);
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#if !__DARWIN_UNIX03
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char *timezone(int, int);
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#endif /* !__DARWIN_UNIX03 */
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void tzsetwall(void);
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time_t time2posix(time_t);
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time_t timelocal(struct tm * const);
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time_t timegm(struct tm * const);
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#endif /* neither ANSI nor POSIX */
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#if !defined(_ANSI_SOURCE)
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int nanosleep(const struct timespec *__rqtp, struct timespec *__rmtp) __DARWIN_ALIAS_C(nanosleep);
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#endif
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#if !defined(_DARWIN_FEATURE_CLOCK_GETTIME) || _DARWIN_FEATURE_CLOCK_GETTIME != 0
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#if __DARWIN_C_LEVEL >= 199309L
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#if __has_feature(enumerator_attributes)
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#define __CLOCK_AVAILABILITY __OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0) __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0)
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#else
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#define __CLOCK_AVAILABILITY
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#endif
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typedef enum {
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_CLOCK_REALTIME __CLOCK_AVAILABILITY = 0,
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#define CLOCK_REALTIME _CLOCK_REALTIME
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_CLOCK_MONOTONIC __CLOCK_AVAILABILITY = 6,
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#define CLOCK_MONOTONIC _CLOCK_MONOTONIC
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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_CLOCK_MONOTONIC_RAW __CLOCK_AVAILABILITY = 4,
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#define CLOCK_MONOTONIC_RAW _CLOCK_MONOTONIC_RAW
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_CLOCK_MONOTONIC_RAW_APPROX __CLOCK_AVAILABILITY = 5,
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#define CLOCK_MONOTONIC_RAW_APPROX _CLOCK_MONOTONIC_RAW_APPROX
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_CLOCK_UPTIME_RAW __CLOCK_AVAILABILITY = 8,
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#define CLOCK_UPTIME_RAW _CLOCK_UPTIME_RAW
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_CLOCK_UPTIME_RAW_APPROX __CLOCK_AVAILABILITY = 9,
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#define CLOCK_UPTIME_RAW_APPROX _CLOCK_UPTIME_RAW_APPROX
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#endif
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_CLOCK_PROCESS_CPUTIME_ID __CLOCK_AVAILABILITY = 12,
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#define CLOCK_PROCESS_CPUTIME_ID _CLOCK_PROCESS_CPUTIME_ID
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_CLOCK_THREAD_CPUTIME_ID __CLOCK_AVAILABILITY = 16
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#define CLOCK_THREAD_CPUTIME_ID _CLOCK_THREAD_CPUTIME_ID
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} clockid_t;
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__CLOCK_AVAILABILITY
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int clock_getres(clockid_t __clock_id, struct timespec *__res);
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__CLOCK_AVAILABILITY
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int clock_gettime(clockid_t __clock_id, struct timespec *__tp);
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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__CLOCK_AVAILABILITY
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__uint64_t clock_gettime_nsec_np(clockid_t __clock_id);
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#endif
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__OSX_AVAILABLE(10.12) __IOS_PROHIBITED
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__TVOS_PROHIBITED __WATCHOS_PROHIBITED
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int clock_settime(clockid_t __clock_id, const struct timespec *__tp);
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#undef __CLOCK_AVAILABILITY
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#endif /* __DARWIN_C_LEVEL */
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#endif /* _DARWIN_FEATURE_CLOCK_GETTIME */
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#if (__DARWIN_C_LEVEL >= __DARWIN_C_FULL) && \
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((defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
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(defined(__cplusplus) && __cplusplus >= 201703L))
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/* ISO/IEC 9899:201x 7.27.2.5 The timespec_get function */
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#define TIME_UTC 1 /* time elapsed since epoch */
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__API_AVAILABLE(macosx(10.15), ios(13.0), tvos(13.0), watchos(6.0))
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int timespec_get(struct timespec *ts, int base);
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#endif
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__END_DECLS
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#ifdef _USE_EXTENDED_LOCALES_
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#include <xlocale/_time.h>
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#endif /* _USE_EXTENDED_LOCALES_ */
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#endif /* !_TIME_H_ */ |