exec_elf32.c revision 1.139 
1/*	$NetBSD: exec_elf32.c,v 1.139 2014/03/07 01:34:29 christos Exp $	*/
2
3/*
4 * Copyright (c) 1996 Christopher G. Demetriou
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by Christopher G. Demetriou
18 *	for the NetBSD Project.
19 * 4. The name of the author may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: exec_elf32.c,v 1.139 2014/03/07 01:34:29 christos Exp $");
36
37#define	ELFSIZE	32
38
39#include "exec_elf.c"
40
41#include <sys/module.h>
42
43#define ELF32_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux32Info), \
44    sizeof(Elf32_Addr)) + MAXPATHLEN + ALIGN(1))
45
46#ifdef COREDUMP
47#define	DEP	"coredump"
48#else
49#define	DEP	NULL
50#endif
51
52MODULE(MODULE_CLASS_EXEC, exec_elf32, DEP);
53
54static struct execsw exec_elf32_execsw[] = {
55	{
56		.es_hdrsz = sizeof (Elf32_Ehdr),
57	  	.es_makecmds = exec_elf32_makecmds,
58	  	.u = {
59			.elf_probe_func = netbsd_elf32_probe,
60		},
61		.es_emul = &emul_netbsd,
62		.es_prio = EXECSW_PRIO_ANY,
63		.es_arglen = ELF32_AUXSIZE,
64		.es_copyargs = elf32_copyargs,
65		.es_setregs = NULL,
66		.es_coredump = coredump_elf32,
67		.es_setup_stack =exec_setup_stack,
68	},
69#if EXEC_ELF_NOTELESS
70	{
71		.es_hdrsz = sizeof (Elf32_Ehdr),
72	  	.es_makecmds = exec_elf32_makecmds,
73	  	.u {
74			elf_probe_func = NULL,
75		},
76		.es_emul = &emul_netbsd,
77		.es_prio = EXECSW_PRIO_LAST,
78		.es_arglen = ELF32_AUXSIZE,
79		.es_copyargs = elf32_copyargs,
80		.es_setregs = NULL,
81		.es_coredump = coredump_elf32,
82		.es_setup_stack = exec_setup_stack,
83	},
84#endif
85};
86
87static int
88exec_elf32_modcmd(modcmd_t cmd, void *arg)
89{
90
91	switch (cmd) {
92	case MODULE_CMD_INIT:
93		return exec_add(exec_elf32_execsw,
94		    __arraycount(exec_elf32_execsw));
95
96	case MODULE_CMD_FINI:
97		return exec_remove(exec_elf32_execsw,
98		    __arraycount(exec_elf32_execsw));
99
100	default:
101		return ENOTTY;
102        }
103}
104