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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 | ||
33 | static const char *orc_usage[] = { | |
34 | "objtool orc generate [<options>] file.o", | |
35 | "objtool orc dump file.o", | |
36 | NULL, | |
37 | }; | |
38 | ||
39 | extern const struct option check_options[]; | |
40 | extern bool nofp; | |
41 | ||
42 | int 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, nofp, 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 | } |