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.
76 lines
2.7 KiB
C
Vendored
76 lines
2.7 KiB
C
Vendored
/*
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* Copyright (c) 2007-2018 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_PROCESSOR_INFO_H_
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#define _MACH_ARM_PROCESSOR_INFO_H_
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#if defined (__arm__) || defined (__arm64__)
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#define PROCESSOR_CPU_STAT 0x10000003 /* Low-level CPU statistics */
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#define PROCESSOR_CPU_STAT64 0x10000004 /* Low-level CPU statistics, in full 64-bit */
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#include <stdint.h> /* uint32_t, uint64_t */
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struct processor_cpu_stat {
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uint32_t irq_ex_cnt;
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uint32_t ipi_cnt;
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uint32_t timer_cnt;
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uint32_t undef_ex_cnt;
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uint32_t unaligned_cnt;
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uint32_t vfp_cnt;
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uint32_t vfp_shortv_cnt;
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uint32_t data_ex_cnt;
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uint32_t instr_ex_cnt;
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};
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typedef struct processor_cpu_stat processor_cpu_stat_data_t;
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typedef struct processor_cpu_stat *processor_cpu_stat_t;
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#define PROCESSOR_CPU_STAT_COUNT ((mach_msg_type_number_t) \
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(sizeof(processor_cpu_stat_data_t) / sizeof(natural_t)))
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struct processor_cpu_stat64 {
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uint64_t irq_ex_cnt;
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uint64_t ipi_cnt;
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uint64_t timer_cnt;
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uint64_t undef_ex_cnt;
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uint64_t unaligned_cnt;
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uint64_t vfp_cnt;
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uint64_t vfp_shortv_cnt;
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uint64_t data_ex_cnt;
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uint64_t instr_ex_cnt;
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uint64_t pmi_cnt;
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} __attribute__((packed, aligned(4)));
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typedef struct processor_cpu_stat64 processor_cpu_stat64_data_t;
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typedef struct processor_cpu_stat64 *processor_cpu_stat64_t;
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#define PROCESSOR_CPU_STAT64_COUNT ((mach_msg_type_number_t) \
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(sizeof(processor_cpu_stat64_data_t) / sizeof(integer_t)))
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#endif /* defined (__arm__) || defined (__arm64__) */
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#endif /* _MACH_ARM_PROCESSOR_INFO_H_ */ |