118 lines
3.8 KiB
C
118 lines
3.8 KiB
C
/* $NetBSD: darwin_thread.c,v 1.11 2006/10/12 01:30:47 christos Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: darwin_thread.c,v 1.11 2006/10/12 01:30:47 christos Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/signal.h>
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#include <sys/mount.h>
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#include <sys/proc.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <compat/sys/signal.h>
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#include <compat/mach/mach_types.h>
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#include <compat/mach/mach_exec.h>
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#include <compat/mach/mach_vm.h>
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#include <compat/darwin/darwin_audit.h>
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#include <compat/darwin/darwin_signal.h>
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#include <compat/darwin/darwin_syscallargs.h>
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#include <machine/darwin_machdep.h>
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/*
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* darwin_fork_child_return() sets the return values as expected by Darwin
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* userland: libSystem stub expects the child pid to be in retval[0] for
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* the parent as well as the child.
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*/
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int
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darwin_sys_fork(struct lwp *l, void *v __unused, register_t *retval)
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{
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int error;
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if ((error = fork1(l, 0, SIGCHLD, NULL, 0,
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darwin_fork_child_return, NULL, retval, NULL)) != 0)
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return error;
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return 0;
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}
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int
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darwin_sys_vfork(struct lwp *l, void *v __unused, register_t *retval)
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{
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int error;
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if ((error = fork1(l, FORK_PPWAIT, SIGCHLD, NULL, 0,
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darwin_fork_child_return, NULL, retval, NULL)) != 0)
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return error;
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return 0;
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}
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int
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darwin_sys_pthread_exit(l, v, retval)
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struct lwp *l;
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void *v;
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register_t *retval;
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{
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struct darwin_sys_pthread_exit_args /* {
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syscallarg(void *) value_ptr;
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} */ *uap = v;
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struct sys_exit_args cup;
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struct mach_emuldata *med;
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struct proc *p = l->l_proc;
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int error;
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/* Get the status or use zero if it is not possible */
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if ((error = copyin(SCARG(uap, value_ptr), &SCARG(&cup, rval),
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sizeof(void *))) != 0)
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SCARG(&cup, rval) = 0;
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/* Avoid destroying the parent's rights in mach_e_proc_exit */
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med = (struct mach_emuldata *)p->p_emuldata;
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LIST_INIT(&med->med_right);
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return sys_exit(l, &cup, retval);
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}
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