2 * Copyright (c) 1995 Steven Wallace
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Steven Wallace.
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #include <sys/param.h>
35 #include <sys/kernel.h>
36 #include <sys/systm.h>
38 #include <sys/imgact.h>
40 #include <sys/module.h>
41 #include <sys/sysent.h>
42 #include <sys/signalvar.h>
48 #include <vm/vm_param.h>
50 #include <i386/ibcs2/ibcs2_syscall.h>
51 #include <i386/ibcs2/ibcs2_signal.h>
53 MODULE_VERSION(ibcs2, 1);
55 extern int bsd_to_ibcs2_errno[];
56 extern struct sysent ibcs2_sysent[IBCS2_SYS_MAXSYSCALL];
58 extern char sigcode[];
59 static int ibcs2_fixup(register_t **, struct image_params *);
61 struct sysentvec ibcs2_svr3_sysvec = {
62 sizeof (ibcs2_sysent) / sizeof (ibcs2_sysent[0]),
69 NULL, /* trap-to-signal translation function */
70 ibcs2_fixup, /* fixup */
72 sigcode, /* use generic trampoline */
73 &szsigcode, /* use generic trampoline size */
74 NULL, /* prepsyscall */
76 NULL, /* we don't have a COFF coredump function */
91 ibcs2_fixup(register_t **stack_base, struct image_params *imgp)
94 return (suword(--(*stack_base), imgp->args->argc));
98 * Create an "ibcs2" module that does nothing but allow checking for
99 * the presence of the subsystem.
102 ibcs2_modevent(module_t mod, int type, void *unused)
104 struct proc *p = NULL;
111 /* if this was an ELF module we'd use elf_brand_inuse()... */
112 sx_slock(&allproc_lock);
113 LIST_FOREACH(p, &allproc, p_list) {
114 if (p->p_sysent == &ibcs2_svr3_sysvec) {
119 sx_sunlock(&allproc_lock);
127 static moduledata_t ibcs2_mod = {
132 DECLARE_MODULE(ibcs2, ibcs2_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);