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/*
* Copyright (c) 1995 Steven Wallace
* 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 Steven Wallace.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/sysent.h>
#include <sys/signalvar.h>
#include <sys/proc.h>
#include <sys/sx.h>
#include <i386/ibcs2/ibcs2_syscall.h>
#include <i386/ibcs2/ibcs2_signal.h>
MODULE_VERSION(ibcs2, 1);
extern int bsd_to_ibcs2_errno[];
extern struct sysent ibcs2_sysent[IBCS2_SYS_MAXSYSCALL];
extern int szsigcode;
extern char sigcode[];
struct sysentvec ibcs2_svr3_sysvec = {
sizeof (ibcs2_sysent) / sizeof (ibcs2_sysent[0]),
ibcs2_sysent,
0xFF,
IBCS2_SIGTBLSZ,
bsd_to_ibcs2_sig,
ELAST + 1,
bsd_to_ibcs2_errno,
0, /* trap-to-signal translation function */
0, /* fixup */
sendsig,
sigcode, /* use generic trampoline */
&szsigcode, /* use generic trampoline size */
0, /* prepsyscall */
"IBCS2 COFF",
NULL, /* we don't have a COFF coredump function */
NULL,
IBCS2_MINSIGSTKSZ
};
/*
* Create an "ibcs2" module that does nothing but allow checking for
* the presence of the subsystem.
*/
static int
ibcs2_modevent(module_t mod, int type, void *unused)
{
struct proc *p = NULL;
int rval = 0;
switch(type) {
case MOD_UNLOAD:
/* if this was an ELF module we'd use elf_brand_inuse()... */
sx_slock(&allproc_lock);
LIST_FOREACH(p, &allproc, p_list) {
if (p->p_sysent == &ibcs2_svr3_sysvec) {
rval = EBUSY;
break;
}
}
sx_sunlock(&allproc_lock);
default:
/* do not care */
}
return (rval);
}
static moduledata_t ibcs2_mod = {
"ibcs2",
ibcs2_modevent,
0
};
DECLARE_MODULE(ibcs2, ibcs2_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
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