1 /* $NetBSD: ibcs2_mod.c,v 1.5 2014/03/08 01:51:58 nakayama 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 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: ibcs2_mod.c,v 1.5 2014/03/08 01:51:58 nakayama Exp $");
34
35 #ifdef _KERNEL_OPT
36 #include "opt_execfmt.h"
37 #endif
38
39 #include <sys/param.h>
40 #include <sys/module.h>
41 #include <sys/exec.h>
42 #include <sys/exec_elf.h>
43 #include <sys/exec_coff.h>
44 #include <sys/signalvar.h>
45
46 #include <machine/ibcs2_machdep.h>
47
48 #include <compat/ibcs2/ibcs2_exec.h>
49 #include <compat/ibcs2/ibcs2_exec.h>
50
51 #if defined(EXEC_ELF32)
52 # define MD1 ",exec_elf32"
53 #else
54 # define MD1 ""
55 #endif
56
57 MODULE(MODULE_CLASS_EXEC, compat_ibcs2, "compat" MD1);
58
59 #define ELF32_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux32Info), \
60 sizeof(Elf32_Addr)) + MAXPATHLEN + ALIGN(1))
61 #define ELF64_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux64Info), \
62 sizeof(Elf64_Addr)) + MAXPATHLEN + ALIGN(1))
63
64 static struct execsw ibcs2_execsw[] = {
65 #ifdef EXEC_ELF32
66 {
67 .es_hdrsz = sizeof (Elf32_Ehdr),
68 .es_makecmds = exec_elf32_makecmds,
69 .u = {
70 .elf_probe_func = ibcs2_elf32_probe,
71 },
72 .es_emul = &emul_ibcs2,
73 .es_prio = EXECSW_PRIO_ANY,
74 .es_arglen = ELF32_AUXSIZE,
75 .es_copyargs = elf32_copyargs,
76 .es_setregs = NULL,
77 .es_coredump = coredump_elf32,
78 .es_setup_stack = exec_setup_stack,
79 },
80 #endif
81 {
82 .es_hdrsz = COFF_HDR_SIZE,
83 .es_makecmds = exec_ibcs2_coff_makecmds,
84 .u = {
85 .elf_probe_func = NULL,
86 },
87 .es_emul = &emul_ibcs2,
88 .es_prio = EXECSW_PRIO_ANY,
89 .es_arglen = 0,
90 .es_copyargs = copyargs,
91 .es_setregs = NULL,
92 .es_coredump = coredump_netbsd,
93 .es_setup_stack = ibcs2_exec_setup_stack,
94 },
95 {
96 .es_hdrsz = XOUT_HDR_SIZE,
97 .es_makecmds = exec_ibcs2_xout_makecmds,
98 .u = {
99 .elf_probe_func = NULL,
100 },
101 .es_emul = &emul_ibcs2,
102 .es_prio = EXECSW_PRIO_ANY,
103 .es_arglen = 0,
104 .es_copyargs = copyargs,
105 .es_setregs = NULL,
106 .es_coredump = coredump_netbsd,
107 .es_setup_stack = ibcs2_exec_setup_stack
108 },
109 };
110
111 static int
compat_ibcs2_modcmd(modcmd_t cmd,void * arg)112 compat_ibcs2_modcmd(modcmd_t cmd, void *arg)
113 {
114
115 switch (cmd) {
116 case MODULE_CMD_INIT:
117 return exec_add(ibcs2_execsw, __arraycount(ibcs2_execsw));
118
119 case MODULE_CMD_FINI:
120 return exec_remove(ibcs2_execsw, __arraycount(ibcs2_execsw));
121
122 default:
123 return ENOTTY;
124 }
125 }
126