1/*
 2 * Copyright (C) 2015-2017 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 check:
20 *
21 * This command analyzes every .o file and ensures the validity of its stack
22 * trace metadata.  It enforces a set of rules on asm code and C inline
23 * assembly code so that stack traces can be reliable.
24 *
25 * For more information, see tools/objtool/Documentation/stack-validation.txt.
26 */
27
28#include <subcmd/parse-options.h>
 
29#include "builtin.h"
30#include "check.h"
31
32bool no_fp, no_unreachable, retpoline, module;
33
34static const char * const check_usage[] = {
35	"objtool check [<options>] file.o",
36	NULL,
37};
38
39const struct option check_options[] = {
40	OPT_BOOLEAN('f', "no-fp", &no_fp, "Skip frame pointer validation"),
41	OPT_BOOLEAN('u', "no-unreachable", &no_unreachable, "Skip 'unreachable instruction' warnings"),
42	OPT_BOOLEAN('r', "retpoline", &retpoline, "Validate retpoline assumptions"),
43	OPT_BOOLEAN('m', "module", &module, "Indicates the object will be part of a kernel module"),
 
 
 
 
 
44	OPT_END(),
45};
46
47int cmd_check(int argc, const char **argv)
48{
49	const char *objname;
50
51	argc = parse_options(argc, argv, check_options, check_usage, 0);
52
53	if (argc != 1)
54		usage_with_options(check_usage, check_options);
55
56	objname = argv[0];
 
 
 
 
57
58	return check(objname, false);
59}

 1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Copyright (C) 2015-2017 Josh Poimboeuf <jpoimboe@redhat.com>
 
 
 
 
 
 
 
 
 
 
 
 
 
 4 */
 5
 6/*
 7 * objtool check:
 8 *
 9 * This command analyzes every .o file and ensures the validity of its stack
10 * trace metadata.  It enforces a set of rules on asm code and C inline
11 * assembly code so that stack traces can be reliable.
12 *
13 * For more information, see tools/objtool/Documentation/stack-validation.txt.
14 */
15
16#include <subcmd/parse-options.h>
17#include <string.h>
18#include "builtin.h"
19#include "objtool.h"
20
21bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats, validate_dup, vmlinux;
22
23static const char * const check_usage[] = {
24	"objtool check [<options>] file.o",
25	NULL,
26};
27
28const struct option check_options[] = {
29	OPT_BOOLEAN('f', "no-fp", &no_fp, "Skip frame pointer validation"),
30	OPT_BOOLEAN('u', "no-unreachable", &no_unreachable, "Skip 'unreachable instruction' warnings"),
31	OPT_BOOLEAN('r', "retpoline", &retpoline, "Validate retpoline assumptions"),
32	OPT_BOOLEAN('m', "module", &module, "Indicates the object will be part of a kernel module"),
33	OPT_BOOLEAN('b', "backtrace", &backtrace, "unwind on error"),
34	OPT_BOOLEAN('a', "uaccess", &uaccess, "enable uaccess checking"),
35	OPT_BOOLEAN('s', "stats", &stats, "print statistics"),
36	OPT_BOOLEAN('d', "duplicate", &validate_dup, "duplicate validation for vmlinux.o"),
37	OPT_BOOLEAN('l', "vmlinux", &vmlinux, "vmlinux.o validation"),
38	OPT_END(),
39};
40
41int cmd_check(int argc, const char **argv)
42{
43	const char *objname, *s;
44
45	argc = parse_options(argc, argv, check_options, check_usage, 0);
46
47	if (argc != 1)
48		usage_with_options(check_usage, check_options);
49
50	objname = argv[0];
51
52	s = strstr(objname, "vmlinux.o");
53	if (s && !s[9])
54		vmlinux = true;
55
56	return check(objname, false);
57}