1// SPDX-License-Identifier: GPL-2.0
 2#include "builtin.h"
 3#include "color.h"
 4#include "util/debug.h"
 5#include "util/header.h"
 6#include <tools/config.h>
 7#include <stdbool.h>
 8#include <stdio.h>
 9#include <string.h>
10#include <subcmd/parse-options.h>
11
12struct version {
13	bool	build_options;
14};
15
16static struct version version;
17
18static struct option version_options[] = {
19	OPT_BOOLEAN(0, "build-options", &version.build_options,
20		    "display the build options"),
21	OPT_END(),
22};
23
24static const char * const version_usage[] = {
25	"perf version [<options>]",
26	NULL
27};
28
29static void on_off_print(const char *status)
30{
31	printf("[ ");
32
33	if (!strcmp(status, "OFF"))
34		color_fprintf(stdout, PERF_COLOR_RED, "%-3s", status);
35	else
36		color_fprintf(stdout, PERF_COLOR_GREEN, "%-3s", status);
37
38	printf(" ]");
39}
40
41static void status_print(const char *name, const char *macro,
42			 const char *status)
43{
44	printf("%22s: ", name);
45	on_off_print(status);
46	printf("  # %s\n", macro);
47}
48
49#define STATUS(feature)                                   \
50do {                                                      \
51	if (feature.is_builtin)                               \
52		status_print(feature.name, feature.macro, "on");  \
53	else                                                  \
54		status_print(feature.name, feature.macro, "OFF"); \
55} while (0)
56
57static void library_status(void)
58{
59	for (int i = 0; supported_features[i].name; ++i)
60		STATUS(supported_features[i]);
61}
62
63int cmd_version(int argc, const char **argv)
64{
65	argc = parse_options(argc, argv, version_options, version_usage,
66			     PARSE_OPT_STOP_AT_NON_OPTION);
67
68	printf("perf version %s\n", perf_version_string);
69
70	if (version.build_options || verbose > 0)
71		library_status();
72
73	return 0;
74}