1 /* Copyright (C) 2012, 2013, 2015 Red Hat, Inc.
2 This file is part of elfutils.
3
4 This file is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 elfutils is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
16
17 #ifdef HAVE_CONFIG_H
18 # include <config.h>
19 #endif
20
21 #include <fcntl.h>
22 #include ELFUTILS_HEADER(dw)
23 #include <stdio.h>
24 #include <unistd.h>
25 #include <dwarf.h>
26 #include <inttypes.h>
27
28 int
main(int argc,char * argv[])29 main (int argc, char *argv[])
30 {
31 for (int i = 1; i < argc; ++i)
32 {
33 int fd = open (argv[i], O_RDONLY);
34
35 Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
36 if (dbg != NULL)
37 {
38 Dwarf_Off off = 0;
39 size_t cuhl;
40 Dwarf_Off noff;
41 uint64_t type_sig;
42
43 while (dwarf_next_unit (dbg, off, &noff, &cuhl, NULL, NULL, NULL,
44 NULL, &type_sig, NULL) == 0)
45 {
46 Dwarf_Die die_mem;
47 dwarf_offdie_types (dbg, off + cuhl, &die_mem);
48 off = noff;
49 }
50
51 off = 0;
52
53 while (dwarf_nextcu (dbg, off, &noff, &cuhl, NULL, NULL, NULL) == 0)
54 {
55 Dwarf_Die die_mem;
56 Dwarf_Die *die = dwarf_offdie (dbg, off + cuhl, &die_mem);
57
58 Dwarf_Die iter_mem;
59 Dwarf_Die *iter = &iter_mem;
60 dwarf_child (die, &iter_mem);
61
62 while (1)
63 {
64 if (dwarf_tag (iter) == DW_TAG_variable)
65 {
66 Dwarf_Attribute attr_mem;
67 Dwarf_Die form_mem, *form;
68 form = dwarf_formref_die (dwarf_attr (iter, DW_AT_type,
69 &attr_mem),
70 &form_mem);
71
72 if (form == NULL)
73 printf ("fail\n");
74 else
75 printf ("ok %s [%" PRIx64 "]\n",
76 dwarf_diename (form), dwarf_dieoffset (form));
77 }
78
79 if (dwarf_siblingof (iter, &iter_mem) != 0)
80 break;
81 }
82
83 off = noff;
84 }
85
86 dwarf_end (dbg);
87 }
88
89 close (fd);
90 }
91 }
92