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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.
77 lines
3.2 KiB
C
Vendored
77 lines
3.2 KiB
C
Vendored
/*
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* Copyright (c) 2006 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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* [SPN] Support for _POSIX_SPAWN
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*
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* This header contains information that is shared between the user space
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* and kernel versions of the posix_spawn() code. Shared elements are all
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* manifest constants, at the current time.
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*/
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#ifndef _SYS_SPAWN_H_
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#define _SYS_SPAWN_H_
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/*
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* Possible bit values which may be OR'ed together and provided as the second
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* parameter to posix_spawnattr_setflags() or implicit returned in the value of
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* the second parameter to posix_spawnattr_getflags().
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*/
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#define POSIX_SPAWN_RESETIDS 0x0001 /* [SPN] R[UG]ID not E[UG]ID */
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#define POSIX_SPAWN_SETPGROUP 0x0002 /* [SPN] set non-parent PGID */
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#define POSIX_SPAWN_SETSIGDEF 0x0004 /* [SPN] reset sigset default */
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#define POSIX_SPAWN_SETSIGMASK 0x0008 /* [SPN] set signal mask */
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#if 0 /* _POSIX_PRIORITY_SCHEDULING [PS] : not supported */
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#define POSIX_SPAWN_SETSCHEDPARAM 0x0010
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#define POSIX_SPAWN_SETSCHEDULER 0x0020
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#endif /* 0 */
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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/*
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* Darwin-specific flags
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*/
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#define POSIX_SPAWN_SETEXEC 0x0040
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#define POSIX_SPAWN_START_SUSPENDED 0x0080
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#define POSIX_SPAWN_SETSID 0x0400
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#define POSIX_SPAWN_CLOEXEC_DEFAULT 0x4000
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/*
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* Possible values to be set for the process control actions on resource starvation.
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* POSIX_SPAWN_PCONTROL_THROTTLE indicates that the process is to be throttled on starvation.
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* POSIX_SPAWN_PCONTROL_SUSPEND indicates that the process is to be suspended on starvation.
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* POSIX_SPAWN_PCONTROL_KILL indicates that the process is to be terminated on starvation.
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*/
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#define POSIX_SPAWN_PCONTROL_NONE 0x0000
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#define POSIX_SPAWN_PCONTROL_THROTTLE 0x0001
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#define POSIX_SPAWN_PCONTROL_SUSPEND 0x0002
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#define POSIX_SPAWN_PCONTROL_KILL 0x0003
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#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
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#endif /* _SYS_SPAWN_H_ */ |