builtin-klp.c

 1// SPDX-License-Identifier: GPL-2.0-or-later
 2#include <subcmd/parse-options.h>
 3#include <string.h>
 4#include <stdlib.h>
 5#include <objtool/builtin.h>
 6#include <objtool/objtool.h>
 7#include <objtool/klp.h>
 8
 9struct subcmd {
10	const char *name;
11	const char *description;
12	int (*fn)(int, const char **);
13};
14
15static struct subcmd subcmds[] = {
16	{ "diff",		"Generate binary diff of two object files",		cmd_klp_diff, },
17	{ "post-link",		"Finalize klp symbols/relocs after module linking",	cmd_klp_post_link, },
18};
19
20static void cmd_klp_usage(void)
21{
22	fprintf(stderr, "usage: objtool klp <subcommand> [<options>]\n\n");
23	fprintf(stderr, "Subcommands:\n");
24
25	for (int i = 0; i < ARRAY_SIZE(subcmds); i++) {
26		struct subcmd *cmd = &subcmds[i];
27
28		fprintf(stderr, "  %s\t%s\n", cmd->name, cmd->description);
29	}
30
31	exit(1);
32}
33
34int cmd_klp(int argc, const char **argv)
35{
36	argc--;
37	argv++;
38
39	if (!argc)
40		cmd_klp_usage();
41
42	if (argc) {
43		for (int i = 0; i < ARRAY_SIZE(subcmds); i++) {
44			struct subcmd *cmd = &subcmds[i];
45
46			if (!strcmp(cmd->name, argv[0]))
47				return cmd->fn(argc, argv);
48		}
49	}
50
51	cmd_klp_usage();
52	return 0;
53}