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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.
98 lines
4.0 KiB
C
Vendored
98 lines
4.0 KiB
C
Vendored
/*
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* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_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. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this 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_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* @OSF_COPYRIGHT@
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*/
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/*
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* Mach Operating System
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* Copyright (c) 1991,1990,1989 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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/*
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*/
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#ifndef _I386_EFLAGS_H_
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#define _I386_EFLAGS_H_
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#if defined (__i386__) || defined (__x86_64__)
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/*
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* i386 flags register
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*/
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#ifndef EFL_CF
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#define EFL_CF 0x00000001 /* carry */
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#define EFL_PF 0x00000004 /* parity of low 8 bits */
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#define EFL_AF 0x00000010 /* carry out of bit 3 */
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#define EFL_ZF 0x00000040 /* zero */
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#define EFL_SF 0x00000080 /* sign */
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#define EFL_TF 0x00000100 /* trace trap */
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#define EFL_IF 0x00000200 /* interrupt enable */
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#define EFL_DF 0x00000400 /* direction */
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#define EFL_OF 0x00000800 /* overflow */
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#define EFL_IOPL 0x00003000 /* IO privilege level: */
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#define EFL_IOPL_KERNEL 0x00000000 /* kernel */
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#define EFL_IOPL_USER 0x00003000 /* user */
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#define EFL_NT 0x00004000 /* nested task */
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#define EFL_RF 0x00010000 /* resume without tracing */
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#define EFL_VM 0x00020000 /* virtual 8086 mode */
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#define EFL_AC 0x00040000 /* alignment check */
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#define EFL_VIF 0x00080000 /* virtual interrupt flag */
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#define EFL_VIP 0x00100000 /* virtual interrupt pending */
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#define EFL_ID 0x00200000 /* cpuID instruction */
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#endif
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#define EFL_CLR 0xfff88028
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#define EFL_SET 0x00000002
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#define EFL_USER_SET (EFL_IF)
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#define EFL_USER_CLEAR (EFL_IOPL|EFL_NT|EFL_RF)
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#endif /* defined (__i386__) || defined (__x86_64__) */
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#endif /* _I386_EFLAGS_H_ */ |