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comparison dynodump/syms.c @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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children 131b0175ea99
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-1:000000000000 0:376386a54a3c
1 /*
2 * Copyright (c) 1995 by Sun Microsystems, Inc.
3 * All rights reserved.
4 *
5 * This source code is a product of Sun Microsystems, Inc. and is provided
6 * for unrestricted use provided that this legend is included on all tape
7 * media and as a part of the software program in whole or part. Users
8 * may copy or modify this source code without charge, but are not authorized
9 * to license or distribute it to anyone else except as part of a product or
10 * program developed by the user.
11 *
12 * THIS PROGRAM CONTAINS SOURCE CODE COPYRIGHTED BY SUN MICROSYSTEMS, INC.
13 * SUN MICROSYSTEMS, INC., MAKES NO REPRESENTATIONS ABOUT THE SUITABLITY
14 * OF SUCH SOURCE CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" WITHOUT
15 * EXPRESS OR IMPLIED WARRANTY OF ANY KIND. SUN MICROSYSTEMS, INC. DISCLAIMS
16 * ALL WARRANTIES WITH REGARD TO SUCH SOURCE CODE, INCLUDING ALL IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN
18 * NO EVENT SHALL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT,
19 * INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
20 * FROM USE OF SUCH SOURCE CODE, REGARDLESS OF THE THEORY OF LIABILITY.
21 *
22 * This source code is provided with no support and without any obligation on
23 * the part of Sun Microsystems, Inc. to assist in its use, correction,
24 * modification or enhancement.
25 *
26 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
27 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS
28 * SOURCE CODE OR ANY PART THEREOF.
29 *
30 * Sun Microsystems, Inc.
31 * 2550 Garcia Avenue
32 * Mountain View, California 94043
33 */
34
35 /*
36 * Update the value of the `_edata' and `_end' symbols.
37 */
38 #pragma ident "@(#) $Id: syms.c,v 1.1.1.1 1996/12/18 03:37:22 steve Exp $ - SMI"
39
40 #include <libelf.h>
41 #include <string.h>
42 #include "machdep.h"
43 #include "_dynodump.h"
44
45 void
46 update_sym(Cache * cache, Cache * _cache, Addr edata)
47 {
48 char *strs;
49 Sym *syms;
50 Shdr *shdr;
51 int symn, cnt;
52
53 /*
54 * Set up to read the symbol table and its associated string table.
55 */
56 shdr = _cache->c_shdr;
57 syms = (Sym *) _cache->c_data->d_buf;
58 symn = shdr->sh_size / shdr->sh_entsize;
59
60 strs = (char *) cache[shdr->sh_link].c_data->d_buf;
61
62 /*
63 * Loop through the symbol table looking for `_end' and `_edata'.
64 */
65 for (cnt = 0; cnt < symn; cnt++, syms++) {
66 char *name = strs + syms->st_name;
67
68 if (strcmp(name, "_end") && strcmp(name, "_edata"))
69 continue;
70
71 syms->st_value = edata;
72 }
73 }