xref: /titanic_41/usr/src/cmd/sgs/libelf/common/getehdr.c (revision 74e20cfe817b82802b16fac8690dadcda76f54f5)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 /*
27  * Copyright (c) 1998 by Sun Microsystems, Inc.
28  * All rights reserved.
29  */
30 
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI" 	/* SVr4.0 1.8	*/
33 
34 
35 #pragma weak	elf32_getehdr = _elf32_getehdr
36 
37 
38 #include "syn.h"
39 #include "libelf.h"
40 #include "decl.h"
41 #include "msg.h"
42 
43 
44 static void*
45 getehdr(Elf * elf, int class)
46 {
47 	void *	rc;
48 	if (elf == 0)
49 		return (0);
50 	ELFWLOCK(elf);
51 	if (elf->ed_class != class) {
52 		_elf_seterr(EREQ_CLASS, 0);
53 		ELFUNLOCK(elf);
54 		return (0);
55 	}
56 	if (elf->ed_ehdr == 0)
57 		(void) _elf_cook(elf);
58 
59 	rc = elf->ed_ehdr;
60 	ELFUNLOCK(elf);
61 
62 	return (rc);
63 }
64 
65 
66 Elf32_Ehdr *
67 elf32_getehdr(Elf * elf)
68 {
69 	return ((Elf32_Ehdr*) getehdr(elf, ELFCLASS32));
70 }
71 
72 
73 Elf64_Ehdr *
74 elf64_getehdr(Elf * elf)
75 {
76 	return ((Elf64_Ehdr*) getehdr(elf, ELFCLASS64));
77 }
78