1 /* Section hash table implementation.
2 Copyright (C) 2001, 2002, 2005 Red Hat, Inc.
3 This file is part of elfutils.
4 Written by Ulrich Drepper <drepper@redhat.com>, 2001.
5
6 This file is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 elfutils is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18
19 #ifdef HAVE_CONFIG_H
20 # include <config.h>
21 #endif
22
23 #include <string.h>
24
25 #include <elf-knowledge.h>
26 #include <ld.h>
27
28
29 /* Comparison function for sections. */
30 static int
scnhead_compare(struct scnhead * one,struct scnhead * two)31 scnhead_compare (struct scnhead *one, struct scnhead *two)
32 {
33 int result = strcmp (one->name, two->name);
34
35 if (result == 0)
36 {
37 result = one->type - two->type;
38
39 if (result == 0)
40 {
41 GElf_Sxword diff = (SH_FLAGS_IMPORTANT (one->flags)
42 - SH_FLAGS_IMPORTANT (two->flags));
43 result = diff < 0 ? -1 : diff == 0 ? 0 : 1;
44
45 if (result == 0)
46 {
47 result = one->entsize - two->entsize;
48
49 if (result == 0)
50 {
51 result = (one->grp_signature == NULL
52 ? (two->grp_signature == NULL ? 0 : -1)
53 : (two->grp_signature == NULL
54 ? 1 : strcmp (one->grp_signature,
55 two->grp_signature)));
56
57 if (result == 0)
58 result = one->kind - two->kind;
59 }
60 }
61 }
62 }
63
64 return result;
65 }
66
67 /* Definitions for the section hash table. */
68 #define TYPE struct scnhead *
69 #define NAME ld_section_tab
70 #define ITERATE 1
71 #define COMPARE(a, b) scnhead_compare (a, b)
72
73 #include "../lib/dynamicsizehash.c"
74