FreeBSD rfork emulation
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pooka
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@ -1,4 +1,4 @@
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# $NetBSD: files.freebsd,v 1.4 2000/12/01 19:13:48 jdolecek Exp $
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# $NetBSD: files.freebsd,v 1.5 2002/10/09 20:22:47 pooka Exp $
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#
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# Config file description for machine-independent FreeBSD compat code.
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# Included by ports that need it.
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@ -10,6 +10,7 @@ file compat/freebsd/freebsd_exec.c compat_freebsd
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file compat/freebsd/freebsd_exec_elf32.c compat_freebsd & exec_elf32
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file compat/freebsd/freebsd_exec_aout.c compat_freebsd & exec_aout
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file compat/freebsd/freebsd_file.c compat_freebsd
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file compat/freebsd/freebsd_fork.c compat_freebsd
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file compat/freebsd/freebsd_ioctl.c compat_freebsd
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file compat/freebsd/freebsd_ipc.c compat_freebsd
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file compat/freebsd/freebsd_misc.c compat_freebsd
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89
sys/compat/freebsd/freebsd_fork.c
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89
sys/compat/freebsd/freebsd_fork.c
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@ -0,0 +1,89 @@
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/* $NetBSD: freebsd_fork.c,v 1.1 2002/10/09 20:22:47 pooka 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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* 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: freebsd_fork.c,v 1.1 2002/10/09 20:22:47 pooka Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/errno.h>
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#include <sys/uio.h>
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#include <sys/signal.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#include <machine/freebsd_machdep.h>
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#include <compat/freebsd/freebsd_syscallargs.h>
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#include <compat/freebsd/freebsd_fork.h>
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/*
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* rfork()
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*/
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int
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freebsd_sys_rfork(struct proc *p, void *v, register_t *retval)
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{
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struct freebsd_sys_rfork_args /* {
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syscallargs(int) flags;
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} */ *uap = v;
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int flags;
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flags = 0;
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if ((SCARG(uap, flags)
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& (FREEBSD_RFFDG | FREEBSD_RFCFDG))
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== (FREEBSD_RFFDG | FREEBSD_RFCFDG))
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return (EINVAL);
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if ((SCARG(uap, flags) & FREEBSD_RFPROC) == 0)
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return (EINVAL);
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if (SCARG(uap, flags) & FREEBSD_RFNOWAIT)
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flags |= FORK_NOWAIT;
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if (SCARG(uap, flags) & FREEBSD_RFMEM)
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flags |= FORK_SHAREVM;
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if (SCARG(uap, flags) & FREEBSD_RFSIGSHARE)
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flags |= FORK_SHARESIGS;
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if (SCARG(uap, flags) & FREEBSD_RFCFDG)
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flags |= FORK_CLEANFILES;
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else if ((SCARG(uap, flags) & FREEBSD_RFFDG) == 0)
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flags |= FORK_SHAREFILES;
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return (fork1(p, flags,
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SCARG(uap, flags) & FREEBSD_RFLINUXTHPN ? SIGUSR1 : SIGCHLD,
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NULL, 0, NULL, NULL, retval, NULL));
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}
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62
sys/compat/freebsd/freebsd_fork.h
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62
sys/compat/freebsd/freebsd_fork.h
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@ -0,0 +1,62 @@
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/* $NetBSD: freebsd_fork.h,v 1.1 2002/10/09 20:22:47 pooka Exp $ */
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/*
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* Copyright (c) 1989, 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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* @(#)unistd.h 8.2 (Berkeley) 1/7/94
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* $FreeBSD: src/sys/sys/unistd.h,v 1.22.2.2 2000/08/22 01:46:30 jhb Exp $
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*/
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#ifndef _FREEBSD_FORK_H_
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#define _FREEBSD_FORK_H_
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/*
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* rfork() options.
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*
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* XXX currently, operations without RFPROC set are not supported.
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*/
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#define FREEBSD_RFNAMEG (1<<0) /* UNIMPL new plan9 `name space' */
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#define FREEBSD_RFENVG (1<<1) /* UNIMPL copy plan9 `env space' */
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#define FREEBSD_RFFDG (1<<2) /* copy fd table */
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#define FREEBSD_RFNOTEG (1<<3) /* UNIMPL create new plan9 note grou' */
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#define FREEBSD_RFPROC (1<<4) /* change child (else curproc) */
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#define FREEBSD_RFMEM (1<<5) /* share `address space' */
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#define FREEBSD_RFNOWAIT (1<<6) /* parent need not wait() on child */
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#define FREEBSD_RFCNAMEG (1<<10) /* UNIMPL zero plan9 `name space' */
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#define FREEBSD_RFCENVG (1<<11) /* UNIMPL zero plan9 `env space' */
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#define FREEBSD_RFCFDG (1<<12) /* zero fd table */
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#define FREEBSD_RFTHREAD (1<<13) /* enable kernel thread support */
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#define FREEBSD_RFSIGSHARE (1<<14) /* share signal handlers */
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#define FREEBSD_RFLINUXTHPN (1<<16) /* do linux clone exit notification */
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#define FREEBSD_RFPPWAIT (1<<31) /* sleep until child exits (vfork) */
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#endif /* !_FREEBSD_FORK_H_ */
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@ -1,4 +1,4 @@
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$NetBSD: syscalls.master,v 1.37 2002/05/03 00:20:57 eeh Exp $
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$NetBSD: syscalls.master,v 1.38 2002/10/09 20:22:47 pooka Exp $
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; from: @(#)syscalls.master 8.2 (Berkeley) 1/13/94
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; syscall numbers initially used in OpenBSD
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250 NOARGS { int sys_minherit(void *addr, size_t len, \
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int inherit); }
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251 UNIMPL rfork
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251 STD { int freebsd_sys_rfork(int flags); }
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252 UNIMPL openbsd_poll
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253 NOARGS { int sys_issetugid(void); }
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254 STD { int freebsd_sys_lchown(const char *path, int uid, \
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