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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.
47 lines
No EOL
1.6 KiB
C
Vendored
47 lines
No EOL
1.6 KiB
C
Vendored
/*
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* Copyright (c) 2004-2016 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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#ifndef _OSATOMIC_H_
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#define _OSATOMIC_H_
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/*! @header
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* These are deprecated legacy interfaces for atomic and synchronization
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* operations.
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*
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* Define OSATOMIC_USE_INLINED=1 to get inline implementations of the
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* OSAtomic interfaces in terms of the <stdatomic.h> primitives.
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*
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* Define OSSPINLOCK_USE_INLINED=1 to get inline implementations of the
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* OSSpinLock interfaces in terms of the <os/lock.h> primitives.
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*
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* These are intended as a transition convenience, direct use of those
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* primitives should be preferred.
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*/
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#include <sys/cdefs.h>
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#include "OSAtomicDeprecated.h"
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#include "OSSpinLockDeprecated.h"
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#include "OSAtomicQueue.h"
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#endif /* _OSATOMIC_H_ */ |