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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.
458 lines
16 KiB
C
Vendored
458 lines
16 KiB
C
Vendored
/*
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* Copyright (c) 2000-2018 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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/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)resource.h 8.2 (Berkeley) 1/4/94
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*/
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#ifndef _SYS_RESOURCE_H_
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#define _SYS_RESOURCE_H_
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#include <sys/appleapiopts.h>
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#include <sys/cdefs.h>
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#include <sys/_types.h>
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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#include <stdint.h>
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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#include <Availability.h>
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/* [XSI] The timeval structure shall be defined as described in
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* <sys/time.h>
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*/
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#include <sys/_types/_timeval.h>
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/* The id_t type shall be defined as described in <sys/types.h> */
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#include <sys/_types/_id_t.h>
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/*
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* Resource limit type (low 63 bits, excluding the sign bit)
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*/
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typedef __uint64_t rlim_t;
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/*****
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* PRIORITY
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*/
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/*
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* Possible values of the first parameter to getpriority()/setpriority(),
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* used to indicate the type of the second parameter.
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*/
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#define PRIO_PROCESS 0 /* Second argument is a PID */
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#define PRIO_PGRP 1 /* Second argument is a GID */
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#define PRIO_USER 2 /* Second argument is a UID */
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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#define PRIO_DARWIN_THREAD 3 /* Second argument is always 0 (current thread) */
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#define PRIO_DARWIN_PROCESS 4 /* Second argument is a PID */
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/*
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* Range limitations for the value of the third parameter to setpriority().
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*/
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#define PRIO_MIN -20
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#define PRIO_MAX 20
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/*
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* use PRIO_DARWIN_BG to set the current thread into "background" state
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* which lowers CPU, disk IO, and networking priorites until thread terminates
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* or "background" state is revoked
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*/
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#define PRIO_DARWIN_BG 0x1000
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/*
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* use PRIO_DARWIN_NONUI to restrict a process's ability to make calls to
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* the GPU. (deprecated)
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*/
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#define PRIO_DARWIN_NONUI 0x1001
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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/*****
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* RESOURCE USAGE
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*/
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/*
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* Possible values of the first parameter to getrusage(), used to indicate
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* the scope of the information to be returned.
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*/
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#define RUSAGE_SELF 0 /* Current process information */
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#define RUSAGE_CHILDREN -1 /* Current process' children */
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/*
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* A structure representing an accounting of resource utilization. The
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* address of an instance of this structure is the second parameter to
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* getrusage().
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*
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* Note: All values other than ru_utime and ru_stime are implementaiton
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* defined and subject to change in a future release. Their use
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* is discouraged for standards compliant programs.
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*/
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struct rusage {
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struct timeval ru_utime; /* user time used (PL) */
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struct timeval ru_stime; /* system time used (PL) */
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#if __DARWIN_C_LEVEL < __DARWIN_C_FULL
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long ru_opaque[14]; /* implementation defined */
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#else
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/*
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* Informational aliases for source compatibility with programs
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* that need more information than that provided by standards,
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* and which do not mind being OS-dependent.
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*/
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long ru_maxrss; /* max resident set size (PL) */
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#define ru_first ru_ixrss /* internal: ruadd() range start */
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long ru_ixrss; /* integral shared memory size (NU) */
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long ru_idrss; /* integral unshared data (NU) */
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long ru_isrss; /* integral unshared stack (NU) */
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long ru_minflt; /* page reclaims (NU) */
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long ru_majflt; /* page faults (NU) */
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long ru_nswap; /* swaps (NU) */
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long ru_inblock; /* block input operations (atomic) */
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long ru_oublock; /* block output operations (atomic) */
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long ru_msgsnd; /* messages sent (atomic) */
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long ru_msgrcv; /* messages received (atomic) */
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long ru_nsignals; /* signals received (atomic) */
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long ru_nvcsw; /* voluntary context switches (atomic) */
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long ru_nivcsw; /* involuntary " */
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#define ru_last ru_nivcsw /* internal: ruadd() range end */
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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};
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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/*
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* Flavors for proc_pid_rusage().
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*/
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#define RUSAGE_INFO_V0 0
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#define RUSAGE_INFO_V1 1
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#define RUSAGE_INFO_V2 2
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#define RUSAGE_INFO_V3 3
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#define RUSAGE_INFO_V4 4
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#define RUSAGE_INFO_CURRENT RUSAGE_INFO_V4
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typedef void *rusage_info_t;
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struct rusage_info_v0 {
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uint8_t ri_uuid[16];
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uint64_t ri_user_time;
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uint64_t ri_system_time;
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uint64_t ri_pkg_idle_wkups;
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uint64_t ri_interrupt_wkups;
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uint64_t ri_pageins;
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uint64_t ri_wired_size;
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uint64_t ri_resident_size;
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uint64_t ri_phys_footprint;
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uint64_t ri_proc_start_abstime;
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uint64_t ri_proc_exit_abstime;
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};
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struct rusage_info_v1 {
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uint8_t ri_uuid[16];
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uint64_t ri_user_time;
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uint64_t ri_system_time;
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uint64_t ri_pkg_idle_wkups;
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uint64_t ri_interrupt_wkups;
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uint64_t ri_pageins;
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uint64_t ri_wired_size;
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uint64_t ri_resident_size;
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uint64_t ri_phys_footprint;
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uint64_t ri_proc_start_abstime;
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uint64_t ri_proc_exit_abstime;
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uint64_t ri_child_user_time;
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uint64_t ri_child_system_time;
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uint64_t ri_child_pkg_idle_wkups;
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uint64_t ri_child_interrupt_wkups;
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uint64_t ri_child_pageins;
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uint64_t ri_child_elapsed_abstime;
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};
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struct rusage_info_v2 {
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uint8_t ri_uuid[16];
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uint64_t ri_user_time;
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uint64_t ri_system_time;
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uint64_t ri_pkg_idle_wkups;
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uint64_t ri_interrupt_wkups;
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uint64_t ri_pageins;
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uint64_t ri_wired_size;
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uint64_t ri_resident_size;
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uint64_t ri_phys_footprint;
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uint64_t ri_proc_start_abstime;
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uint64_t ri_proc_exit_abstime;
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uint64_t ri_child_user_time;
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uint64_t ri_child_system_time;
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uint64_t ri_child_pkg_idle_wkups;
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uint64_t ri_child_interrupt_wkups;
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uint64_t ri_child_pageins;
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uint64_t ri_child_elapsed_abstime;
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uint64_t ri_diskio_bytesread;
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uint64_t ri_diskio_byteswritten;
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};
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struct rusage_info_v3 {
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uint8_t ri_uuid[16];
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uint64_t ri_user_time;
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uint64_t ri_system_time;
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uint64_t ri_pkg_idle_wkups;
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uint64_t ri_interrupt_wkups;
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uint64_t ri_pageins;
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uint64_t ri_wired_size;
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uint64_t ri_resident_size;
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uint64_t ri_phys_footprint;
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uint64_t ri_proc_start_abstime;
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uint64_t ri_proc_exit_abstime;
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uint64_t ri_child_user_time;
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uint64_t ri_child_system_time;
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uint64_t ri_child_pkg_idle_wkups;
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uint64_t ri_child_interrupt_wkups;
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uint64_t ri_child_pageins;
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uint64_t ri_child_elapsed_abstime;
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uint64_t ri_diskio_bytesread;
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uint64_t ri_diskio_byteswritten;
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uint64_t ri_cpu_time_qos_default;
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uint64_t ri_cpu_time_qos_maintenance;
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uint64_t ri_cpu_time_qos_background;
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uint64_t ri_cpu_time_qos_utility;
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uint64_t ri_cpu_time_qos_legacy;
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uint64_t ri_cpu_time_qos_user_initiated;
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uint64_t ri_cpu_time_qos_user_interactive;
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uint64_t ri_billed_system_time;
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uint64_t ri_serviced_system_time;
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};
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struct rusage_info_v4 {
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uint8_t ri_uuid[16];
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uint64_t ri_user_time;
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uint64_t ri_system_time;
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uint64_t ri_pkg_idle_wkups;
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uint64_t ri_interrupt_wkups;
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uint64_t ri_pageins;
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uint64_t ri_wired_size;
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uint64_t ri_resident_size;
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uint64_t ri_phys_footprint;
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uint64_t ri_proc_start_abstime;
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uint64_t ri_proc_exit_abstime;
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uint64_t ri_child_user_time;
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uint64_t ri_child_system_time;
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uint64_t ri_child_pkg_idle_wkups;
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uint64_t ri_child_interrupt_wkups;
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uint64_t ri_child_pageins;
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uint64_t ri_child_elapsed_abstime;
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uint64_t ri_diskio_bytesread;
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uint64_t ri_diskio_byteswritten;
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uint64_t ri_cpu_time_qos_default;
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uint64_t ri_cpu_time_qos_maintenance;
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uint64_t ri_cpu_time_qos_background;
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uint64_t ri_cpu_time_qos_utility;
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uint64_t ri_cpu_time_qos_legacy;
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uint64_t ri_cpu_time_qos_user_initiated;
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uint64_t ri_cpu_time_qos_user_interactive;
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uint64_t ri_billed_system_time;
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uint64_t ri_serviced_system_time;
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uint64_t ri_logical_writes;
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uint64_t ri_lifetime_max_phys_footprint;
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uint64_t ri_instructions;
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uint64_t ri_cycles;
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uint64_t ri_billed_energy;
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uint64_t ri_serviced_energy;
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uint64_t ri_interval_max_phys_footprint;
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uint64_t ri_runnable_time;
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};
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typedef struct rusage_info_v4 rusage_info_current;
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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/*****
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* RESOURCE LIMITS
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*/
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/*
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* Symbolic constants for resource limits; since all limits are representable
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* as a type rlim_t, we are permitted to define RLIM_SAVED_* in terms of
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* RLIM_INFINITY.
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*/
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#define RLIM_INFINITY (((__uint64_t)1 << 63) - 1) /* no limit */
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#define RLIM_SAVED_MAX RLIM_INFINITY /* Unrepresentable hard limit */
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#define RLIM_SAVED_CUR RLIM_INFINITY /* Unrepresentable soft limit */
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/*
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* Possible values of the first parameter to getrlimit()/setrlimit(), to
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* indicate for which resource the operation is being performed.
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*/
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#define RLIMIT_CPU 0 /* cpu time per process */
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#define RLIMIT_FSIZE 1 /* file size */
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#define RLIMIT_DATA 2 /* data segment size */
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#define RLIMIT_STACK 3 /* stack size */
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#define RLIMIT_CORE 4 /* core file size */
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#define RLIMIT_AS 5 /* address space (resident set size) */
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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#define RLIMIT_RSS RLIMIT_AS /* source compatibility alias */
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#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
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#define RLIMIT_NPROC 7 /* number of processes */
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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#define RLIMIT_NOFILE 8 /* number of open files */
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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#define RLIM_NLIMITS 9 /* total number of resource limits */
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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#define _RLIMIT_POSIX_FLAG 0x1000 /* Set bit for strict POSIX */
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/*
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* A structure representing a resource limit. The address of an instance
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* of this structure is the second parameter to getrlimit()/setrlimit().
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*/
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struct rlimit {
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rlim_t rlim_cur; /* current (soft) limit */
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rlim_t rlim_max; /* maximum value for rlim_cur */
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};
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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/*
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* proc_rlimit_control()
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*
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* Resource limit flavors
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*/
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#define RLIMIT_WAKEUPS_MONITOR 0x1 /* Configure the wakeups monitor. */
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#define RLIMIT_CPU_USAGE_MONITOR 0x2 /* Configure the CPU usage monitor. */
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#define RLIMIT_THREAD_CPULIMITS 0x3 /* Configure a blocking, per-thread, CPU limits. */
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#define RLIMIT_FOOTPRINT_INTERVAL 0x4 /* Configure memory footprint interval tracking */
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/*
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* Flags for wakeups monitor control.
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*/
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#define WAKEMON_ENABLE 0x01
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#define WAKEMON_DISABLE 0x02
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#define WAKEMON_GET_PARAMS 0x04
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#define WAKEMON_SET_DEFAULTS 0x08
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#define WAKEMON_MAKE_FATAL 0x10 /* Configure the task so that violations are fatal. */
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/*
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* Flags for CPU usage monitor control.
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*/
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#define CPUMON_MAKE_FATAL 0x1000
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/*
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* Flags for memory footprint interval tracking.
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*/
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#define FOOTPRINT_INTERVAL_RESET 0x1 /* Reset the footprint interval counter to zero */
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struct proc_rlimit_control_wakeupmon {
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uint32_t wm_flags;
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int32_t wm_rate;
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};
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/* I/O type */
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#define IOPOL_TYPE_DISK 0
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#define IOPOL_TYPE_VFS_ATIME_UPDATES 2
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#define IOPOL_TYPE_VFS_MATERIALIZE_DATALESS_FILES 3
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#define IOPOL_TYPE_VFS_STATFS_NO_DATA_VOLUME 4
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/* scope */
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#define IOPOL_SCOPE_PROCESS 0
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#define IOPOL_SCOPE_THREAD 1
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#define IOPOL_SCOPE_DARWIN_BG 2
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/* I/O Priority */
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#define IOPOL_DEFAULT 0
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#define IOPOL_IMPORTANT 1
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#define IOPOL_PASSIVE 2
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#define IOPOL_THROTTLE 3
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#define IOPOL_UTILITY 4
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#define IOPOL_STANDARD 5
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/* compatibility with older names */
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#define IOPOL_APPLICATION IOPOL_STANDARD
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#define IOPOL_NORMAL IOPOL_IMPORTANT
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#define IOPOL_ATIME_UPDATES_DEFAULT 0
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#define IOPOL_ATIME_UPDATES_OFF 1
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#define IOPOL_MATERIALIZE_DATALESS_FILES_DEFAULT 0
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#define IOPOL_MATERIALIZE_DATALESS_FILES_OFF 1
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#define IOPOL_MATERIALIZE_DATALESS_FILES_ON 2
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#define IOPOL_VFS_STATFS_NO_DATA_VOLUME_DEFAULT 0
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#define IOPOL_VFS_STATFS_FORCE_NO_DATA_VOLUME 1
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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__BEGIN_DECLS
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int getpriority(int, id_t);
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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int getiopolicy_np(int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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int getrlimit(int, struct rlimit *) __DARWIN_ALIAS(getrlimit);
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int getrusage(int, struct rusage *);
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int setpriority(int, id_t, int);
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#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
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int setiopolicy_np(int, int, int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
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#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
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int setrlimit(int, const struct rlimit *) __DARWIN_ALIAS(setrlimit);
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__END_DECLS
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#endif /* !_SYS_RESOURCE_H_ */ |