1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
 
 
 
 
 
 
 
 
 
 
 
 
 
 4 */
 5
 6/*
 7 * objtool orc:
 8 *
 9 * This command analyzes a .o file and adds .orc_unwind and .orc_unwind_ip
10 * sections to it, which is used by the in-kernel ORC unwinder.
11 *
12 * This command is a superset of "objtool check".
13 */
14
15#include <string.h>
16#include <objtool/builtin.h>
17#include <objtool/objtool.h>
 
18
19static const char *orc_usage[] = {
20	"objtool orc generate [<options>] file.o",
21	"objtool orc dump file.o",
22	NULL,
23};
24
25int cmd_orc(int argc, const char **argv)
26{
27	const char *objname;
28
29	argc--; argv++;
30	if (argc <= 0)
31		usage_with_options(orc_usage, check_options);
32
33	if (!strncmp(argv[0], "gen", 3)) {
34		struct objtool_file *file;
35		int ret;
 
36
37		argc = cmd_parse_options(argc, argv, orc_usage);
38		objname = argv[0];
39
40		file = objtool_open_read(objname);
41		if (!file)
42			return 1;
43
44		ret = check(file);
45		if (ret)
46			return ret;
47
48		if (list_empty(&file->insn_list))
49			return 0;
50
51		ret = orc_create(file);
52		if (ret)
53			return ret;
54
55		if (!file->elf->changed)
56			return 0;
57
58		return elf_write(file->elf);
59	}
60
61	if (!strcmp(argv[0], "dump")) {
62		if (argc != 2)
63			usage_with_options(orc_usage, check_options);
64
65		objname = argv[1];
66
67		return orc_dump(objname);
68	}
69
70	usage_with_options(orc_usage, check_options);
71
72	return 0;
73}

 
 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 "builtin.h"
29#include "check.h"
30
31
32static const char *orc_usage[] = {
33	"objtool orc generate [<options>] file.o",
34	"objtool orc dump file.o",
35	NULL,
36};
37
38int cmd_orc(int argc, const char **argv)
39{
40	const char *objname;
41
42	argc--; argv++;
43	if (argc <= 0)
44		usage_with_options(orc_usage, check_options);
45
46	if (!strncmp(argv[0], "gen", 3)) {
47		argc = parse_options(argc, argv, check_options, orc_usage, 0);
48		if (argc != 1)
49			usage_with_options(orc_usage, check_options);
50
 
51		objname = argv[0];
52
53		return check(objname, true);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
54	}
55
56	if (!strcmp(argv[0], "dump")) {
57		if (argc != 2)
58			usage_with_options(orc_usage, check_options);
59
60		objname = argv[1];
61
62		return orc_dump(objname);
63	}
64
65	usage_with_options(orc_usage, check_options);
66
67	return 0;
68}