NetBSD/sys/kern/kern_stub.c

81 lines
3.0 KiB
C

/* $NetBSD: kern_stub.c,v 1.2 2007/03/03 10:08:19 itohy Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Stubs for system calls and facilities not included in the system.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_stub.c,v 1.2 2007/03/03 10:08:19 itohy Exp $");
#include "opt_ptrace.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/syscallargs.h>
/*
* Nonexistent system call-- signal process (may want to handle it). Flag
* error in case process won't see signal immediately (blocked or ignored).
*/
#ifndef PTRACE
__weak_alias(sys_ptrace,sys_nosys);
#endif
/*
* Scheduler activations system calls. These need to remain until libc's
* major version is bumped.
*/
__strong_alias(sys_sa_register,sys_nosys);
__strong_alias(sys_sa_stacks,sys_nosys);
__strong_alias(sys_sa_enable,sys_nosys);
__strong_alias(sys_sa_setconcurrency,sys_nosys);
__strong_alias(sys_sa_yield,sys_nosys);
__strong_alias(sys_sa_preempt,sys_nosys);
__strong_alias(sys_sa_unblockyield,sys_nosys);
/* ARGSUSED */
int
sys_nosys(struct lwp *l, void *v, register_t *retval)
{
mutex_enter(&proclist_mutex);
psignal(l->l_proc, SIGSYS);
mutex_exit(&proclist_mutex);
return ENOSYS;
}