xref: /netbsd/sys/compat/ultrix/ultrix_mod.c (revision 6550d01e)
1 /*	$NetBSD: ultrix_mod.c,v 1.3 2008/11/24 11:19:53 ad Exp $	*/
2 
3 /*-
4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software developed for The NetBSD Foundation
8  * by Andrew Doran.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifdef _KERNEL_OPT
33 #include "opt_execfmt.h"
34 #endif
35 
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: ultrix_mod.c,v 1.3 2008/11/24 11:19:53 ad Exp $");
38 
39 #include <sys/param.h>
40 #include <sys/module.h>
41 #include <sys/exec.h>
42 #include <sys/signalvar.h>
43 #include <sys/exec_elf.h>
44 #ifdef EXEC_ECOFF
45 #include <sys/exec_ecoff.h>
46 #endif
47 
48 #include <compat/ultrix/ultrix_exec.h>
49 
50 #ifdef EXEC_ECOFF
51 #define	MD1	",exec_ecoff"
52 #else
53 #define	MD1	""
54 #endif
55 
56 MODULE(MODULE_CLASS_MISC, compat_ultrix, "compat" MD1);
57 
58 static struct execsw ultrix_execsw[] = {
59 #ifdef EXEC_ECOFF
60 	{ ECOFF_HDR_SIZE,
61 	  exec_ecoff_makecmds,
62 	  { .ecoff_probe_func = ultrix_exec_ecoff_probe },
63 	  &emul_ultrix,
64 	  EXECSW_PRIO_LAST, /* XXX probe func alw. succeeds */
65   	  0,
66   	  copyargs,
67   	  cpu_exec_ecoff_setregs,
68 	  coredump_netbsd,
69 	  exec_setup_stack },
70 #endif
71 };
72 
73 static int
74 compat_ultrix_modcmd(modcmd_t cmd, void *arg)
75 {
76 
77 	switch (cmd) {
78 	case MODULE_CMD_INIT:
79 		return exec_add(ultrix_execsw,
80 		    __arraycount(ultrix_execsw));
81 
82 	case MODULE_CMD_FINI:
83 		return exec_remove(ultrix_execsw,
84 		    __arraycount(ultrix_execsw));
85 
86 	default:
87 		return ENOTTY;
88 	}
89 }
90