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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.
303 lines
7.6 KiB
C
Vendored
303 lines
7.6 KiB
C
Vendored
/*
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* Copyright (c) 2000-2019 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) 1991,1990,1989,1988,1987 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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*/
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/*
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* Definitions of general Mach system traps.
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*
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* These are the definitions as seen from user-space.
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* The kernel definitions are in <mach/syscall_sw.h>.
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* Kernel RPC functions are defined in <mach/mach_interface.h>.
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*/
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#ifndef _MACH_MACH_TRAPS_H_
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#define _MACH_MACH_TRAPS_H_
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#include <stdint.h>
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#include <mach/std_types.h>
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#include <mach/mach_types.h>
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#include <mach/kern_return.h>
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#include <mach/port.h>
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#include <mach/vm_types.h>
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#include <mach/clock_types.h>
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#include <machine/endian.h>
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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extern kern_return_t clock_sleep_trap(
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mach_port_name_t clock_name,
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sleep_type_t sleep_type,
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int sleep_sec,
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int sleep_nsec,
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mach_timespec_t *wakeup_time);
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extern kern_return_t _kernelrpc_mach_vm_allocate_trap(
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mach_port_name_t target,
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mach_vm_offset_t *addr,
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mach_vm_size_t size,
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int flags);
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extern kern_return_t _kernelrpc_mach_vm_deallocate_trap(
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mach_port_name_t target,
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mach_vm_address_t address,
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mach_vm_size_t size
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);
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extern kern_return_t _kernelrpc_mach_vm_protect_trap(
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mach_port_name_t target,
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mach_vm_address_t address,
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mach_vm_size_t size,
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boolean_t set_maximum,
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vm_prot_t new_protection
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);
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extern kern_return_t _kernelrpc_mach_vm_map_trap(
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mach_port_name_t target,
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mach_vm_offset_t *address,
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mach_vm_size_t size,
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mach_vm_offset_t mask,
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int flags,
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vm_prot_t cur_protection
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);
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extern kern_return_t _kernelrpc_mach_vm_purgable_control_trap(
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mach_port_name_t target,
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mach_vm_offset_t address,
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vm_purgable_t control,
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int *state);
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extern kern_return_t _kernelrpc_mach_port_allocate_trap(
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mach_port_name_t target,
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mach_port_right_t right,
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mach_port_name_t *name
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);
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extern kern_return_t _kernelrpc_mach_port_destroy_trap(
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mach_port_name_t target,
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mach_port_name_t name
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);
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extern kern_return_t _kernelrpc_mach_port_deallocate_trap(
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mach_port_name_t target,
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mach_port_name_t name
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);
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extern kern_return_t _kernelrpc_mach_port_mod_refs_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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mach_port_right_t right,
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mach_port_delta_t delta
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);
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extern kern_return_t _kernelrpc_mach_port_move_member_trap(
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mach_port_name_t target,
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mach_port_name_t member,
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mach_port_name_t after
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);
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extern kern_return_t _kernelrpc_mach_port_insert_right_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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mach_port_name_t poly,
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mach_msg_type_name_t polyPoly
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);
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extern kern_return_t _kernelrpc_mach_port_get_attributes_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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mach_port_flavor_t flavor,
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mach_port_info_t port_info_out,
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mach_msg_type_number_t *port_info_outCnt
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);
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extern kern_return_t _kernelrpc_mach_port_insert_member_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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mach_port_name_t pset
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);
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extern kern_return_t _kernelrpc_mach_port_extract_member_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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mach_port_name_t pset
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);
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extern kern_return_t _kernelrpc_mach_port_construct_trap(
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mach_port_name_t target,
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mach_port_options_t *options,
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uint64_t context,
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mach_port_name_t *name
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);
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extern kern_return_t _kernelrpc_mach_port_destruct_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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mach_port_delta_t srdelta,
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uint64_t guard
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);
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extern kern_return_t _kernelrpc_mach_port_guard_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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uint64_t guard,
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boolean_t strict
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);
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extern kern_return_t _kernelrpc_mach_port_unguard_trap(
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mach_port_name_t target,
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mach_port_name_t name,
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uint64_t guard
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);
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extern kern_return_t mach_generate_activity_id(
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mach_port_name_t target,
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int count,
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uint64_t *activity_id
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);
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extern kern_return_t macx_swapon(
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uint64_t filename,
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int flags,
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int size,
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int priority);
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extern kern_return_t macx_swapoff(
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uint64_t filename,
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int flags);
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extern kern_return_t macx_triggers(
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int hi_water,
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int low_water,
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int flags,
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mach_port_t alert_port);
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extern kern_return_t macx_backing_store_suspend(
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boolean_t suspend);
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extern kern_return_t macx_backing_store_recovery(
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int pid);
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extern boolean_t swtch_pri(int pri);
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extern boolean_t swtch(void);
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extern kern_return_t thread_switch(
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mach_port_name_t thread_name,
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int option,
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mach_msg_timeout_t option_time);
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extern mach_port_name_t task_self_trap(void);
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extern kern_return_t host_create_mach_voucher_trap(
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mach_port_name_t host,
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mach_voucher_attr_raw_recipe_array_t recipes,
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int recipes_size,
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mach_port_name_t *voucher);
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extern kern_return_t mach_voucher_extract_attr_recipe_trap(
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mach_port_name_t voucher_name,
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mach_voucher_attr_key_t key,
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mach_voucher_attr_raw_recipe_t recipe,
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mach_msg_type_number_t *recipe_size);
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extern kern_return_t _kernelrpc_mach_port_type_trap(
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ipc_space_t task,
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mach_port_name_t name,
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mach_port_type_t *ptype);
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extern kern_return_t _kernelrpc_mach_port_request_notification_trap(
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ipc_space_t task,
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mach_port_name_t name,
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mach_msg_id_t msgid,
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mach_port_mscount_t sync,
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mach_port_name_t notify,
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mach_msg_type_name_t notifyPoly,
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mach_port_name_t *previous);
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/*
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* Obsolete interfaces.
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*/
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extern kern_return_t task_for_pid(
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mach_port_name_t target_tport,
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int pid,
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mach_port_name_t *t);
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extern kern_return_t task_name_for_pid(
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mach_port_name_t target_tport,
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int pid,
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mach_port_name_t *tn);
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extern kern_return_t pid_for_task(
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mach_port_name_t t,
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int *x);
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extern kern_return_t debug_control_port_for_pid(
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mach_port_name_t target_tport,
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int pid,
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mach_port_name_t *t);
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__END_DECLS
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#endif /* _MACH_MACH_TRAPS_H_ */ |