tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 "builtin.h"
17#include "check.h"
18
19
20static const char *orc_usage[] = {
21 "objtool orc generate [<options>] file.o",
22 "objtool orc dump file.o",
23 NULL,
24};
25
26int cmd_orc(int argc, const char **argv)
27{
28 const char *objname;
29
30 argc--; argv++;
31 if (argc <= 0)
32 usage_with_options(orc_usage, check_options);
33
34 if (!strncmp(argv[0], "gen", 3)) {
35 argc = parse_options(argc, argv, check_options, orc_usage, 0);
36 if (argc != 1)
37 usage_with_options(orc_usage, check_options);
38
39 objname = argv[0];
40
41 return check(objname, true);
42 }
43
44 if (!strcmp(argv[0], "dump")) {
45 if (argc != 2)
46 usage_with_options(orc_usage, check_options);
47
48 objname = argv[1];
49
50 return orc_dump(objname);
51 }
52
53 usage_with_options(orc_usage, check_options);
54
55 return 0;
56}