tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but 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
18/*
19 * objtool orc:
20 *
21 * This command analyzes a .o file and adds .orc_unwind and .orc_unwind_ip
22 * sections to it, which is used by the in-kernel ORC unwinder.
23 *
24 * This command is a superset of "objtool check".
25 */
26
27#include <string.h>
28#include <subcmd/parse-options.h>
29#include "builtin.h"
30#include "check.h"
31
32
33static const char *orc_usage[] = {
34 "objtool orc generate [<options>] file.o",
35 "objtool orc dump file.o",
36 NULL,
37};
38
39extern const struct option check_options[];
40extern bool no_fp, no_unreachable;
41
42int cmd_orc(int argc, const char **argv)
43{
44 const char *objname;
45
46 argc--; argv++;
47 if (!strncmp(argv[0], "gen", 3)) {
48 argc = parse_options(argc, argv, check_options, orc_usage, 0);
49 if (argc != 1)
50 usage_with_options(orc_usage, check_options);
51
52 objname = argv[0];
53
54 return check(objname, no_fp, no_unreachable, true);
55
56 }
57
58 if (!strcmp(argv[0], "dump")) {
59 if (argc != 2)
60 usage_with_options(orc_usage, check_options);
61
62 objname = argv[1];
63
64 return orc_dump(objname);
65 }
66
67 usage_with_options(orc_usage, check_options);
68
69 return 0;
70}