xref: /netbsd-src/sys/kern/exec_elf64.c (revision b1c86f5f087524e68db12794ee9c3e3da1ab17a0)
1 /*	$NetBSD: exec_elf64.c,v 1.3 2008/11/19 18:36:06 ad 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_elf64.c,v 1.3 2008/11/19 18:36:06 ad Exp $");
36 
37 #define	ELFSIZE	64
38 
39 #include "exec_elf.c"
40 
41 #include <sys/module.h>
42 
43 #define ELF64_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux64Info), \
44     sizeof(Elf64_Addr)) + MAXPATHLEN + ALIGN(1))
45 
46 #ifdef COREDUMP
47 #define	DEP	"coredump"
48 #else
49 #define	DEP	NULL
50 #endif
51 
52 MODULE(MODULE_CLASS_MISC, exec_elf64, DEP);
53 
54 static struct execsw exec_elf64_execsw[] = {
55 	/* Native Elf64 */
56 	{ sizeof (Elf64_Ehdr),
57 	  exec_elf64_makecmds,
58 	  { netbsd_elf64_probe },
59 	  &emul_netbsd,
60 	  EXECSW_PRIO_ANY,
61 	  ELF64_AUXSIZE,
62 	  elf64_copyargs,
63 	  NULL,
64 	  coredump_elf64,
65 	  exec_setup_stack },
66 #if EXEC_ELF_NOTELESS
67 	/* Generic Elf64 -- run at NetBSD Elf64 */
68 	{ sizeof (Elf64_Ehdr),
69 	  exec_elf64_makecmds,
70 	  { NULL },
71 	  &emul_netbsd,
72 	  EXECSW_PRIO_ANY,
73 	  ELF64_AUXSIZE,
74 	  elf64_copyargs,
75 	  NULL,
76 	  coredump_elf64,
77 	  exec_setup_stack },
78 #endif
79 };
80 
81 static int
82 exec_elf64_modcmd(modcmd_t cmd, void *arg)
83 {
84 
85 	switch (cmd) {
86 	case MODULE_CMD_INIT:
87 		return exec_add(exec_elf64_execsw,
88 		    __arraycount(exec_elf64_execsw));
89 
90 	case MODULE_CMD_FINI:
91 		return exec_remove(exec_elf64_execsw,
92 		    __arraycount(exec_elf64_execsw));
93 
94 	default:
95 		return ENOTTY;
96         }
97 }
98