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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.
223 lines
11 KiB
C
Vendored
223 lines
11 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, 1997 Apple Computer, Inc. All Rights Reserved */
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/*-
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* Copyright (c) 1986, 1989, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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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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* @(#)proc.h 8.15 (Berkeley) 5/19/95
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*/
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#ifndef _SYS_PROC_H_
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#define _SYS_PROC_H_
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#include <sys/appleapiopts.h>
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#include <sys/cdefs.h>
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#include <sys/select.h> /* For struct selinfo. */
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#include <sys/queue.h>
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#include <sys/lock.h>
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#include <sys/param.h>
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#include <sys/event.h>
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#include <sys/time.h>
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#include <mach/boolean.h>
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struct session;
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struct pgrp;
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struct proc;
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/* Exported fields for kern sysctls */
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struct extern_proc {
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union {
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struct {
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struct proc *__p_forw; /* Doubly-linked run/sleep queue. */
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struct proc *__p_back;
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} p_st1;
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struct timeval __p_starttime; /* process start time */
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} p_un;
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#define p_forw p_un.p_st1.__p_forw
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#define p_back p_un.p_st1.__p_back
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#define p_starttime p_un.__p_starttime
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struct vmspace *p_vmspace; /* Address space. */
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struct sigacts *p_sigacts; /* Signal actions, state (PROC ONLY). */
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int p_flag; /* P_* flags. */
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char p_stat; /* S* process status. */
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pid_t p_pid; /* Process identifier. */
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pid_t p_oppid; /* Save parent pid during ptrace. XXX */
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int p_dupfd; /* Sideways return value from fdopen. XXX */
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/* Mach related */
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caddr_t user_stack; /* where user stack was allocated */
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void *exit_thread; /* XXX Which thread is exiting? */
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int p_debugger; /* allow to debug */
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boolean_t sigwait; /* indication to suspend */
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/* scheduling */
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u_int p_estcpu; /* Time averaged value of p_cpticks. */
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int p_cpticks; /* Ticks of cpu time. */
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fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */
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void *p_wchan; /* Sleep address. */
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char *p_wmesg; /* Reason for sleep. */
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u_int p_swtime; /* Time swapped in or out. */
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u_int p_slptime; /* Time since last blocked. */
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struct itimerval p_realtimer; /* Alarm timer. */
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struct timeval p_rtime; /* Real time. */
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u_quad_t p_uticks; /* Statclock hits in user mode. */
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u_quad_t p_sticks; /* Statclock hits in system mode. */
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u_quad_t p_iticks; /* Statclock hits processing intr. */
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int p_traceflag; /* Kernel trace points. */
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struct vnode *p_tracep; /* Trace to vnode. */
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int p_siglist; /* DEPRECATED. */
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struct vnode *p_textvp; /* Vnode of executable. */
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int p_holdcnt; /* If non-zero, don't swap. */
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sigset_t p_sigmask; /* DEPRECATED. */
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sigset_t p_sigignore; /* Signals being ignored. */
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sigset_t p_sigcatch; /* Signals being caught by user. */
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u_char p_priority; /* Process priority. */
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u_char p_usrpri; /* User-priority based on p_cpu and p_nice. */
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char p_nice; /* Process "nice" value. */
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char p_comm[MAXCOMLEN + 1];
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struct pgrp *p_pgrp; /* Pointer to process group. */
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struct user *p_addr; /* Kernel virtual addr of u-area (PROC ONLY). */
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u_short p_xstat; /* Exit status for wait; also stop signal. */
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u_short p_acflag; /* Accounting flags. */
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struct rusage *p_ru; /* Exit information. XXX */
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};
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/* Status values. */
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#define SIDL 1 /* Process being created by fork. */
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#define SRUN 2 /* Currently runnable. */
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#define SSLEEP 3 /* Sleeping on an address. */
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#define SSTOP 4 /* Process debugging or suspension. */
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#define SZOMB 5 /* Awaiting collection by parent. */
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/* These flags are kept in extern_proc.p_flag. */
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#define P_ADVLOCK 0x00000001 /* Process may hold POSIX adv. lock */
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#define P_CONTROLT 0x00000002 /* Has a controlling terminal */
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#define P_LP64 0x00000004 /* Process is LP64 */
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#define P_NOCLDSTOP 0x00000008 /* No SIGCHLD when children stop */
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#define P_PPWAIT 0x00000010 /* Parent waiting for chld exec/exit */
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#define P_PROFIL 0x00000020 /* Has started profiling */
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#define P_SELECT 0x00000040 /* Selecting; wakeup/waiting danger */
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#define P_CONTINUED 0x00000080 /* Process was stopped and continued */
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#define P_SUGID 0x00000100 /* Has set privileges since last exec */
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#define P_SYSTEM 0x00000200 /* Sys proc: no sigs, stats or swap */
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#define P_TIMEOUT 0x00000400 /* Timing out during sleep */
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#define P_TRACED 0x00000800 /* Debugged process being traced */
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#define P_DISABLE_ASLR 0x00001000 /* Disable address space layout randomization */
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#define P_WEXIT 0x00002000 /* Working on exiting */
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#define P_EXEC 0x00004000 /* Process called exec. */
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/* Should be moved to machine-dependent areas. */
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#define P_OWEUPC 0x00008000 /* Owe process an addupc() call at next ast. */
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#define P_AFFINITY 0x00010000 /* xxx */
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#define P_TRANSLATED 0x00020000 /* xxx */
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#define P_CLASSIC P_TRANSLATED /* xxx */
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#define P_DELAYIDLESLEEP 0x00040000 /* Process is marked to delay idle sleep on disk IO */
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#define P_CHECKOPENEVT 0x00080000 /* check if a vnode has the OPENEVT flag set on open */
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#define P_DEPENDENCY_CAPABLE 0x00100000 /* process is ok to call vfs_markdependency() */
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#define P_REBOOT 0x00200000 /* Process called reboot() */
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#define P_RESV6 0x00400000 /* used to be P_TBE */
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#define P_RESV7 0x00800000 /* (P_SIGEXC)signal exceptions */
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#define P_THCWD 0x01000000 /* process has thread cwd */
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#define P_RESV9 0x02000000 /* (P_VFORK)process has vfork children */
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#define P_ADOPTPERSONA 0x04000000 /* process adopted a persona (used to be P_NOATTACH) */
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#define P_RESV11 0x08000000 /* (P_INVFORK) proc in vfork */
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#define P_NOSHLIB 0x10000000 /* no shared libs are in use for proc */
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/* flag set on exec */
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#define P_FORCEQUOTA 0x20000000 /* Force quota for root */
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#define P_NOCLDWAIT 0x40000000 /* No zombies when chil procs exit */
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#define P_NOREMOTEHANG 0x80000000 /* Don't hang on remote FS ops */
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#define P_INMEM 0 /* Obsolete: retained for compilation */
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#define P_NOSWAP 0 /* Obsolete: retained for compilation */
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#define P_PHYSIO 0 /* Obsolete: retained for compilation */
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#define P_FSTRACE 0 /* Obsolete: retained for compilation */
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#define P_SSTEP 0 /* Obsolete: retained for compilation */
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#define P_DIRTY_TRACK 0x00000001 /* track dirty state */
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#define P_DIRTY_ALLOW_IDLE_EXIT 0x00000002 /* process can be idle-exited when clean */
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#define P_DIRTY_DEFER 0x00000004 /* defer initial opt-in to idle-exit */
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#define P_DIRTY 0x00000008 /* process is dirty */
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#define P_DIRTY_SHUTDOWN 0x00000010 /* process is dirty during shutdown */
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#define P_DIRTY_TERMINATED 0x00000020 /* process has been marked for termination */
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#define P_DIRTY_BUSY 0x00000040 /* serialization flag */
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#define P_DIRTY_MARKED 0x00000080 /* marked dirty previously */
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#define P_DIRTY_AGING_IN_PROGRESS 0x00000100 /* aging in one of the 'aging bands' */
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#define P_DIRTY_LAUNCH_IN_PROGRESS 0x00000200 /* launch is in progress */
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#define P_DIRTY_DEFER_ALWAYS 0x00000400 /* defer going to idle-exit after every dirty->clean transition.
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* For legacy jetsam policy only. This is the default with the other policies.*/
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#define P_DIRTY_IS_DIRTY (P_DIRTY | P_DIRTY_SHUTDOWN)
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#define P_DIRTY_IDLE_EXIT_ENABLED (P_DIRTY_TRACK|P_DIRTY_ALLOW_IDLE_EXIT)
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#endif /* !_SYS_PROC_H_ */ |