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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.
82 lines
2.9 KiB
C
Vendored
82 lines
2.9 KiB
C
Vendored
/*
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* Copyright (c) 2007 Apple 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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#ifndef _MACH_ARM_EXCEPTION_H_
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#define _MACH_ARM_EXCEPTION_H_
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#if defined (__arm__) || defined (__arm64__)
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#define EXC_TYPES_COUNT 14 /* incl. illegal exception 0 */
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#define EXC_MASK_MACHINE 0
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#define EXCEPTION_CODE_MAX 2 /* code and subcode */
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/*
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* Trap numbers as defined by the hardware exception vectors.
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*/
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/*
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* EXC_BAD_INSTRUCTION
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*/
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#define EXC_ARM_UNDEFINED 1 /* Undefined */
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/*
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* EXC_ARITHMETIC
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*/
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#define EXC_ARM_FP_UNDEFINED 0 /* Undefined Floating Point Exception */
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#define EXC_ARM_FP_IO 1 /* Invalid Floating Point Operation */
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#define EXC_ARM_FP_DZ 2 /* Floating Point Divide by Zero */
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#define EXC_ARM_FP_OF 3 /* Floating Point Overflow */
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#define EXC_ARM_FP_UF 4 /* Floating Point Underflow */
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#define EXC_ARM_FP_IX 5 /* Inexact Floating Point Result */
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#define EXC_ARM_FP_ID 6 /* Floating Point Denormal Input */
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/*
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* EXC_BAD_ACCESS
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* Note: do not conflict with kern_return_t values returned by vm_fault
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*/
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#define EXC_ARM_DA_ALIGN 0x101 /* Alignment Fault */
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#define EXC_ARM_DA_DEBUG 0x102 /* Debug (watch/break) Fault */
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#define EXC_ARM_SP_ALIGN 0x103 /* SP Alignment Fault */
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#define EXC_ARM_SWP 0x104 /* SWP instruction */
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#define EXC_ARM_PAC_FAIL 0x105 /* PAC authentication failure */
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/*
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* EXC_BREAKPOINT
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*/
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#define EXC_ARM_BREAKPOINT 1 /* breakpoint trap */
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#endif /* defined (__arm__) || defined (__arm64__) */
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#endif /* _MACH_ARM_EXCEPTION_H_ */ |