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.
163 lines
6.3 KiB
C
Vendored
163 lines
6.3 KiB
C
Vendored
/*
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* Copyright (c) 2000-2012 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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/*
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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) 1991,1990,1989,1988 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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* Copyright (c) 1994 The University of Utah and
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* the Computer Systems Laboratory at the University of Utah (CSL).
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* All rights reserved.
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*
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* Permission to use, copy, modify and distribute this software is hereby
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* granted provided that (1) source code retains these copyright, permission,
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* and disclaimer notices, and (2) redistributions including binaries
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* reproduce the notices in supporting documentation, and (3) all advertising
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* materials mentioning features or use of this software display the following
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* acknowledgement: ``This product includes software developed by the
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* Computer Systems Laboratory at the University of Utah.''
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*
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* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
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* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
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* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* CSL requests users of this software to return to csl-dist@cs.utah.edu any
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* improvements that they make and grant CSL redistribution rights.
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*
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*/
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/*
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* File: vm_param.h
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* Author: Avadis Tevanian, Jr.
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* Date: 1985
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*
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* I386 machine dependent virtual memory parameters.
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* Most of the declarations are preceeded by I386_ (or i386_)
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* which is OK because only I386 specific code will be using
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* them.
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*/
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#ifndef _MACH_I386_VM_PARAM_H_
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#define _MACH_I386_VM_PARAM_H_
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#if defined (__i386__) || defined (__x86_64__)
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#if !defined(KERNEL) && !defined(__ASSEMBLER__)
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#include <mach/vm_page_size.h>
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#endif
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#define BYTE_SIZE 8 /* byte size in bits */
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#define I386_PGBYTES 4096 /* bytes per 80386 page */
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#define I386_PGSHIFT 12 /* bitshift for pages */
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#if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600)
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#define PAGE_SHIFT I386_PGSHIFT
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#define PAGE_SIZE I386_PGBYTES
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#define PAGE_MASK (PAGE_SIZE-1)
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#else /* !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) */
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#define PAGE_SHIFT vm_page_shift
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#define PAGE_SIZE vm_page_size
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#define PAGE_MASK vm_page_mask
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#endif /* !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || (__MAC_OS_X_VERSION_MIN_REQUIRED < 101600) */
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#define PAGE_MAX_SHIFT 14
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#define PAGE_MAX_SIZE (1 << PAGE_MAX_SHIFT)
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#define PAGE_MAX_MASK (PAGE_MAX_SIZE-1)
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#define PAGE_MIN_SHIFT 12
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#define PAGE_MIN_SIZE (1 << PAGE_MIN_SHIFT)
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#define PAGE_MIN_MASK (PAGE_MIN_SIZE-1)
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#define VM_MIN_ADDRESS64 ((user_addr_t) 0x0000000000000000ULL)
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/*
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* Default top of user stack, grows down from here.
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* Address chosen to be 1G (3rd level page table entry) below SHARED_REGION_BASE_X86_64
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* minus additional 1Meg (1/2 1st level page table coverage) to allow a redzone after it.
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*/
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#define VM_USRSTACK64 ((user_addr_t) (0x00007FF7C0000000ull - (1024 * 1024)))
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/*
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* XXX TODO: Obsolete?
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*/
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#define VM_DYLD64 ((user_addr_t) 0x00007FFF5FC00000ULL)
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#define VM_LIB64_SHR_DATA ((user_addr_t) 0x00007FFF60000000ULL)
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#define VM_LIB64_SHR_TEXT ((user_addr_t) 0x00007FFF80000000ULL)
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/*
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* the end of the usable user address space , for now about 47 bits.
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* the 64 bit commpage is past the end of this
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*/
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#define VM_MAX_PAGE_ADDRESS ((user_addr_t) 0x00007FFFFFE00000ULL)
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/*
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* canonical end of user address space for limits checking
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*/
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#define VM_MAX_USER_PAGE_ADDRESS ((user_addr_t)0x00007FFFFFFFF000ULL)
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/* system-wide values */
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#define MACH_VM_MIN_ADDRESS ((mach_vm_offset_t) 0)
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#define MACH_VM_MAX_ADDRESS ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)
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/* process-relative values (all 32-bit legacy only for now) */
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#define VM_MIN_ADDRESS ((vm_offset_t) 0)
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#define VM_USRSTACK32 ((vm_offset_t) 0xC0000000) /* ASLR slides stack down by up to 1 MB */
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#define VM_MAX_ADDRESS ((vm_offset_t) 0xFFE00000)
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#endif /* defined (__i386__) || defined (__x86_64__) */
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#endif /* _MACH_I386_VM_PARAM_H_ */ |