mirror of
https://github.com/ziglang/zig.git
synced 2025-12-09 07:43:10 +00:00
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.
410 lines
16 KiB
C
Vendored
410 lines
16 KiB
C
Vendored
/*
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* Copyright (c) 2000, 2005, 2007, 2009, 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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* This code is derived from software contributed to Berkeley by
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* Chris Torek.
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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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* @(#)stdio.h 8.5 (Berkeley) 4/29/95
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*/
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#ifndef _STDIO_H_
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#define _STDIO_H_
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#include <_stdio.h>
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__BEGIN_DECLS
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extern FILE *__stdinp;
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extern FILE *__stdoutp;
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extern FILE *__stderrp;
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__END_DECLS
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#define __SLBF 0x0001 /* line buffered */
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#define __SNBF 0x0002 /* unbuffered */
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#define __SRD 0x0004 /* OK to read */
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#define __SWR 0x0008 /* OK to write */
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/* RD and WR are never simultaneously asserted */
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#define __SRW 0x0010 /* open for reading & writing */
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#define __SEOF 0x0020 /* found EOF */
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#define __SERR 0x0040 /* found error */
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#define __SMBF 0x0080 /* _buf is from malloc */
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#define __SAPP 0x0100 /* fdopen()ed in append mode */
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#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
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#define __SOPT 0x0400 /* do fseek() optimisation */
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#define __SNPT 0x0800 /* do not do fseek() optimisation */
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#define __SOFF 0x1000 /* set iff _offset is in fact correct */
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#define __SMOD 0x2000 /* true => fgetln modified _p text */
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#define __SALC 0x4000 /* allocate string space dynamically */
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#define __SIGN 0x8000 /* ignore this file in _fwalk */
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/*
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* The following three definitions are for ANSI C, which took them
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* from System V, which brilliantly took internal interface macros and
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* made them official arguments to setvbuf(), without renaming them.
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* Hence, these ugly _IOxxx names are *supposed* to appear in user code.
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*
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* Although numbered as their counterparts above, the implementation
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* does not rely on this.
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*/
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#define _IOFBF 0 /* setvbuf should set fully buffered */
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#define _IOLBF 1 /* setvbuf should set line buffered */
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#define _IONBF 2 /* setvbuf should set unbuffered */
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#define BUFSIZ 1024 /* size of buffer used by setbuf */
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#define EOF (-1)
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/* must be == _POSIX_STREAM_MAX <limits.h> */
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#define FOPEN_MAX 20 /* must be <= OPEN_MAX <sys/syslimits.h> */
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#define FILENAME_MAX 1024 /* must be <= PATH_MAX <sys/syslimits.h> */
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/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
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#ifndef _ANSI_SOURCE
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#define P_tmpdir "/var/tmp/"
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#endif
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#define L_tmpnam 1024 /* XXX must be == PATH_MAX */
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#define TMP_MAX 308915776
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#ifndef SEEK_SET
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#define SEEK_SET 0 /* set file offset to offset */
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#endif
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#ifndef SEEK_CUR
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#define SEEK_CUR 1 /* set file offset to current plus offset */
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#endif
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#ifndef SEEK_END
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#define SEEK_END 2 /* set file offset to EOF plus offset */
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#endif
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#define stdin __stdinp
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#define stdout __stdoutp
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#define stderr __stderrp
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#ifdef _DARWIN_UNLIMITED_STREAMS
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#if defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_3_2
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#error "_DARWIN_UNLIMITED_STREAMS specified, but -miphoneos-version-min version does not support it."
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#elif defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_6
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#error "_DARWIN_UNLIMITED_STREAMS specified, but -mmacosx-version-min version does not support it."
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#endif
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#endif
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/* ANSI-C */
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__BEGIN_DECLS
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void clearerr(FILE *);
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int fclose(FILE *);
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int feof(FILE *);
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int ferror(FILE *);
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int fflush(FILE *);
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int fgetc(FILE *);
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int fgetpos(FILE * __restrict, fpos_t *);
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char *fgets(char * __restrict, int, FILE *);
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#if defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE)
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FILE *fopen(const char * __restrict __filename, const char * __restrict __mode) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_3_2, __DARWIN_EXTSN(fopen));
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#else /* !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */
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FILE *fopen(const char * __restrict __filename, const char * __restrict __mode) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(fopen));
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#endif /* (DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */
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int fprintf(FILE * __restrict, const char * __restrict, ...) __printflike(2, 3);
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int fputc(int, FILE *);
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int fputs(const char * __restrict, FILE * __restrict) __DARWIN_ALIAS(fputs);
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size_t fread(void * __restrict __ptr, size_t __size, size_t __nitems, FILE * __restrict __stream);
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FILE *freopen(const char * __restrict, const char * __restrict,
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FILE * __restrict) __DARWIN_ALIAS(freopen);
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int fscanf(FILE * __restrict, const char * __restrict, ...) __scanflike(2, 3);
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int fseek(FILE *, long, int);
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int fsetpos(FILE *, const fpos_t *);
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long ftell(FILE *);
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size_t fwrite(const void * __restrict __ptr, size_t __size, size_t __nitems, FILE * __restrict __stream) __DARWIN_ALIAS(fwrite);
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int getc(FILE *);
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int getchar(void);
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char *gets(char *);
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void perror(const char *) __cold;
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int printf(const char * __restrict, ...) __printflike(1, 2);
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int putc(int, FILE *);
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int putchar(int);
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int puts(const char *);
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int remove(const char *);
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int rename (const char *__old, const char *__new);
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void rewind(FILE *);
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int scanf(const char * __restrict, ...) __scanflike(1, 2);
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void setbuf(FILE * __restrict, char * __restrict);
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int setvbuf(FILE * __restrict, char * __restrict, int, size_t);
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int sprintf(char * __restrict, const char * __restrict, ...) __printflike(2, 3) __swift_unavailable("Use snprintf instead.");
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int sscanf(const char * __restrict, const char * __restrict, ...) __scanflike(2, 3);
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FILE *tmpfile(void);
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__swift_unavailable("Use mkstemp(3) instead.")
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#if !defined(_POSIX_C_SOURCE)
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__deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of tmpnam(3), it is highly recommended that you use mkstemp(3) instead.")
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#endif
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char *tmpnam(char *);
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int ungetc(int, FILE *);
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int vfprintf(FILE * __restrict, const char * __restrict, va_list) __printflike(2, 0);
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int vprintf(const char * __restrict, va_list) __printflike(1, 0);
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int vsprintf(char * __restrict, const char * __restrict, va_list) __printflike(2, 0) __swift_unavailable("Use vsnprintf instead.");
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__END_DECLS
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/* Additional functionality provided by:
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* POSIX.1-1988
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*/
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#if __DARWIN_C_LEVEL >= 198808L
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#define L_ctermid 1024 /* size for ctermid(); PATH_MAX */
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__BEGIN_DECLS
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#include <_ctermid.h>
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#if defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE)
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FILE *fdopen(int, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_3_2, __DARWIN_EXTSN(fdopen));
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#else /* !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */
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FILE *fdopen(int, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(fdopen));
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#endif /* (DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */
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int fileno(FILE *);
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 198808L */
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/* Additional functionality provided by:
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* POSIX.2-1992 C Language Binding Option
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*/
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#if TARGET_OS_EMBEDDED
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#define __swift_unavailable_on(osx_msg, ios_msg) __swift_unavailable(ios_msg)
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#else
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#define __swift_unavailable_on(osx_msg, ios_msg) __swift_unavailable(osx_msg)
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#endif
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#if __DARWIN_C_LEVEL >= 199209L
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__BEGIN_DECLS
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int pclose(FILE *) __swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable.");
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#if defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE)
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FILE *popen(const char *, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_3_2, __DARWIN_EXTSN(popen)) __swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable.");
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#else /* !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */
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FILE *popen(const char *, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(popen)) __swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable.");
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#endif /* (DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 199209L */
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#undef __swift_unavailable_on
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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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/* Functions internal to the implementation. */
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__BEGIN_DECLS
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int __srget(FILE *);
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int __svfscanf(FILE *, const char *, va_list) __scanflike(2, 0);
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int __swbuf(int, FILE *);
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__END_DECLS
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/*
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* The __sfoo macros are here so that we can
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* define function versions in the C library.
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*/
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#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
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#if defined(__GNUC__) && defined(__STDC__)
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__header_always_inline int __sputc(int _c, FILE *_p) {
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if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
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return (*_p->_p++ = _c);
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else
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return (__swbuf(_c, _p));
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}
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#else
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/*
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* This has been tuned to generate reasonable code on the vax using pcc.
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*/
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#define __sputc(c, p) \
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(--(p)->_w < 0 ? \
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(p)->_w >= (p)->_lbfsize ? \
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(*(p)->_p = (c)), *(p)->_p != '\n' ? \
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(int)*(p)->_p++ : \
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__swbuf('\n', p) : \
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__swbuf((int)(c), p) : \
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(*(p)->_p = (c), (int)*(p)->_p++))
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#endif
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#define __sfeof(p) (((p)->_flags & __SEOF) != 0)
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#define __sferror(p) (((p)->_flags & __SERR) != 0)
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#define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
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#define __sfileno(p) ((p)->_file)
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__BEGIN_DECLS
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void flockfile(FILE *);
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int ftrylockfile(FILE *);
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void funlockfile(FILE *);
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int getc_unlocked(FILE *);
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int getchar_unlocked(void);
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int putc_unlocked(int, FILE *);
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int putchar_unlocked(int);
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/* Removed in Issue 6 */
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#if !defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE < 200112L
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int getw(FILE *);
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int putw(int, FILE *);
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#endif
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__swift_unavailable("Use mkstemp(3) instead.")
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#if !defined(_POSIX_C_SOURCE)
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__deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of tempnam(3), it is highly recommended that you use mkstemp(3) instead.")
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#endif
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char *tempnam(const char *__dir, const char *__prefix) __DARWIN_ALIAS(tempnam);
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__END_DECLS
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#ifndef lint
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#define getc_unlocked(fp) __sgetc(fp)
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#define putc_unlocked(x, fp) __sputc(x, fp)
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#endif /* lint */
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#define getchar_unlocked() getc_unlocked(stdin)
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#define putchar_unlocked(x) putc_unlocked(x, stdout)
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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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* ISO C99
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*/
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#if __DARWIN_C_LEVEL >= 200112L
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#include <sys/_types/_off_t.h>
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__BEGIN_DECLS
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int fseeko(FILE * __stream, off_t __offset, int __whence);
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off_t ftello(FILE * __stream);
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 200112L */
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#if __DARWIN_C_LEVEL >= 200112L || defined(_C99_SOURCE) || defined(__cplusplus)
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__BEGIN_DECLS
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int snprintf(char * __restrict __str, size_t __size, const char * __restrict __format, ...) __printflike(3, 4);
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int vfscanf(FILE * __restrict __stream, const char * __restrict __format, va_list) __scanflike(2, 0);
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int vscanf(const char * __restrict __format, va_list) __scanflike(1, 0);
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int vsnprintf(char * __restrict __str, size_t __size, const char * __restrict __format, va_list) __printflike(3, 0);
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int vsscanf(const char * __restrict __str, const char * __restrict __format, va_list) __scanflike(2, 0);
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 200112L || defined(_C99_SOURCE) || defined(__cplusplus) */
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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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#include <sys/_types/_ssize_t.h>
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__BEGIN_DECLS
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int dprintf(int, const char * __restrict, ...) __printflike(2, 3) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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int vdprintf(int, const char * __restrict, va_list) __printflike(2, 0) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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ssize_t getdelim(char ** __restrict __linep, size_t * __restrict __linecapp, int __delimiter, FILE * __restrict __stream) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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ssize_t getline(char ** __restrict __linep, size_t * __restrict __linecapp, FILE * __restrict __stream) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
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FILE *fmemopen(void * __restrict __buf, size_t __size, const char * __restrict __mode) __API_AVAILABLE(macos(10.13), ios(11.0), tvos(11.0), watchos(4.0));
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FILE *open_memstream(char **__bufp, size_t *__sizep) __API_AVAILABLE(macos(10.13), ios(11.0), tvos(11.0), watchos(4.0));
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__END_DECLS
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#endif /* __DARWIN_C_LEVEL >= 200809L */
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/* Darwin extensions */
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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__BEGIN_DECLS
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extern __const int sys_nerr; /* perror(3) external variables */
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extern __const char *__const sys_errlist[];
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int asprintf(char ** __restrict, const char * __restrict, ...) __printflike(2, 3);
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char *ctermid_r(char *);
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char *fgetln(FILE *, size_t *);
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__const char *fmtcheck(const char *, const char *);
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int fpurge(FILE *);
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void setbuffer(FILE *, char *, int);
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int setlinebuf(FILE *);
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int vasprintf(char ** __restrict, const char * __restrict, va_list) __printflike(2, 0);
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FILE *zopen(const char *, const char *, int);
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/*
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* Stdio function-access interface.
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*/
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FILE *funopen(const void *,
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int (* _Nullable)(void *, char *, int),
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int (* _Nullable)(void *, const char *, int),
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fpos_t (* _Nullable)(void *, fpos_t, int),
|
|
int (* _Nullable)(void *));
|
|
__END_DECLS
|
|
#define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
|
|
#define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
|
|
|
|
#define feof_unlocked(p) __sfeof(p)
|
|
#define ferror_unlocked(p) __sferror(p)
|
|
#define clearerr_unlocked(p) __sclearerr(p)
|
|
#define fileno_unlocked(p) __sfileno(p)
|
|
|
|
#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
|
|
|
|
|
|
#ifdef _USE_EXTENDED_LOCALES_
|
|
#include <xlocale/_stdio.h>
|
|
#endif /* _USE_EXTENDED_LOCALES_ */
|
|
|
|
#if defined (__GNUC__) && _FORTIFY_SOURCE > 0 && !defined (__cplusplus)
|
|
/* Security checking functions. */
|
|
#include <secure/_stdio.h>
|
|
#endif
|
|
|
|
#endif /* _STDIO_H_ */ |