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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.
193 lines
7.4 KiB
C
Vendored
193 lines
7.4 KiB
C
Vendored
/*
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* Copyright (c) 2000, 2007, 2010 Apple 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) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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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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* @(#)string.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _STRING_H_
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#define _STRING_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/_size_t.h>
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#include <sys/_types/_null.h>
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/* ANSI-C */
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__BEGIN_DECLS
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void *memchr(const void *__s, int __c, size_t __n);
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int memcmp(const void *__s1, const void *__s2, size_t __n);
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void *memcpy(void *__dst, const void *__src, size_t __n);
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void *memmove(void *__dst, const void *__src, size_t __len);
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void *memset(void *__b, int __c, size_t __len);
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char *strcat(char *__s1, const char *__s2);
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char *strchr(const char *__s, int __c);
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int strcmp(const char *__s1, const char *__s2);
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int strcoll(const char *__s1, const char *__s2);
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char *strcpy(char *__dst, const char *__src);
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size_t strcspn(const char *__s, const char *__charset);
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char *strerror(int __errnum) __DARWIN_ALIAS(strerror);
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size_t strlen(const char *__s);
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char *strncat(char *__s1, const char *__s2, size_t __n);
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int strncmp(const char *__s1, const char *__s2, size_t __n);
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char *strncpy(char *__dst, const char *__src, size_t __n);
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char *strpbrk(const char *__s, const char *__charset);
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char *strrchr(const char *__s, int __c);
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size_t strspn(const char *__s, const char *__charset);
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char *strstr(const char *__big, const char *__little);
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char *strtok(char *__str, const char *__sep);
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size_t strxfrm(char *__s1, const char *__s2, size_t __n);
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__END_DECLS
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/* Additional functionality provided by:
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* POSIX.1c-1995,
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* POSIX.1i-1995,
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* and the omnibus ISO/IEC 9945-1: 1996
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*/
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#if __DARWIN_C_LEVEL >= 199506L
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__BEGIN_DECLS
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char *strtok_r(char *__str, const char *__sep, char **__lasts);
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 199506L */
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/* Additional functionality provided by:
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* POSIX.1-2001
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*/
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#if __DARWIN_C_LEVEL >= 200112L
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__BEGIN_DECLS
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int strerror_r(int __errnum, char *__strerrbuf, size_t __buflen);
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char *strdup(const char *__s1);
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void *memccpy(void *__dst, const void *__src, int __c, size_t __n);
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 200112L */
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/* Additional functionality provided by:
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* POSIX.1-2008
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*/
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#if __DARWIN_C_LEVEL >= 200809L
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__BEGIN_DECLS
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char *stpcpy(char *__dst, const char *__src);
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char *stpncpy(char *__dst, const char *__src, size_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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char *strndup(const char *__s1, size_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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size_t strnlen(const char *__s1, size_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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char *strsignal(int __sig);
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 200809L */
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/* C11 Annex K */
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#if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1
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#include <sys/_types/_rsize_t.h>
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#include <sys/_types/_errno_t.h>
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__BEGIN_DECLS
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errno_t memset_s(void *__s, rsize_t __smax, int __c, rsize_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_7_0);
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__END_DECLS
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#endif
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/* Darwin extensions */
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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#include <sys/_types/_ssize_t.h>
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__BEGIN_DECLS
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void *memmem(const void *__big, size_t __big_len, const void *__little, size_t __little_len) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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void memset_pattern4(void *__b, const void *__pattern4, size_t __len) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_3_0);
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void memset_pattern8(void *__b, const void *__pattern8, size_t __len) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_3_0);
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void memset_pattern16(void *__b, const void *__pattern16, size_t __len) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_3_0);
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char *strcasestr(const char *__big, const char *__little);
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char *strnstr(const char *__big, const char *__little, size_t __len);
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size_t strlcat(char *__dst, const char *__source, size_t __size);
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size_t strlcpy(char *__dst, const char *__source, size_t __size);
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void strmode(int __mode, char *__bp);
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char *strsep(char **__stringp, const char *__delim);
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/* SUS places swab() in unistd.h. It is listed here for source compatibility */
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void swab(const void * __restrict, void * __restrict, ssize_t);
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__OSX_AVAILABLE(10.12.1) __IOS_AVAILABLE(10.1)
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__TVOS_AVAILABLE(10.0.1) __WATCHOS_AVAILABLE(3.1)
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int timingsafe_bcmp(const void *__b1, const void *__b2, size_t __len);
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__END_DECLS
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/* Some functions historically defined in string.h were placed in strings.h
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* by SUS. We are using "strings.h" instead of <strings.h> to avoid an issue
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* where /Developer/Headers/FlatCarbon/Strings.h could be included instead on
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* case-insensitive file systems.
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*/
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#include "strings.h"
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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#ifdef _USE_EXTENDED_LOCALES_
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#include <xlocale/_string.h>
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#endif /* _USE_EXTENDED_LOCALES_ */
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#if defined (__GNUC__) && _FORTIFY_SOURCE > 0 && !defined (__cplusplus)
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/* Security checking functions. */
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#include <secure/_string.h>
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#endif
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#endif /* _STRING_H_ */ |