1// SPDX-License-Identifier: GPL-2.0
2#include <linux/compiler.h>
3#include <stdio.h>
4#include <string.h>
5#include "builtin.h"
6#include "debug.h"
7#include <subcmd/parse-options.h>
8#include "data-convert.h"
9#include "util/util.h"
10
11typedef int (*data_cmd_fn_t)(int argc, const char **argv);
12
13struct data_cmd {
14	const char	*name;
15	const char	*summary;
16	data_cmd_fn_t	fn;
17};
18
19static struct data_cmd data_cmds[];
20
21#define for_each_cmd(cmd) \
22	for (cmd = data_cmds; cmd && cmd->name; cmd++)
23
24static const char * const data_subcommands[] = { "convert", NULL };
25
26static const char *data_usage[] = {
27	"perf data convert [<options>]",
28	NULL
29};
30
31const char *to_json;
32const char *to_ctf;
33struct perf_data_convert_opts opts = {
34	.force = false,
35	.all = false,
36};
37
38const struct option data_options[] = {
39		OPT_INCR('v', "verbose", &verbose, "be more verbose"),
40		OPT_STRING('i', "input", &input_name, "file", "input file name"),
41		OPT_STRING(0, "to-json", &to_json, NULL, "Convert to JSON format"),
42#ifdef HAVE_LIBBABELTRACE_SUPPORT
43		OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
44		OPT_BOOLEAN(0, "tod", &opts.tod, "Convert time to wall clock time"),
45#endif
46		OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
47		OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
48		OPT_END()
49	};
50
51static int cmd_data_convert(int argc, const char **argv)
52{
53
54	argc = parse_options(argc, argv, data_options,
55			     data_usage, 0);
56	if (argc) {
57		usage_with_options(data_usage, data_options);
58		return -1;
59	}
60
61	if (to_json && to_ctf) {
62		pr_err("You cannot specify both --to-ctf and --to-json.\n");
63		return -1;
64	}
65#ifdef HAVE_LIBBABELTRACE_SUPPORT
66	if (!to_json && !to_ctf) {
67		pr_err("You must specify one of --to-ctf or --to-json.\n");
68		return -1;
69	}
70#else
71	if (!to_json) {
72		pr_err("You must specify --to-json.\n");
73	return -1;
74}
75#endif
76
77	if (to_json)
78		return bt_convert__perf2json(input_name, to_json, &opts);
79
80	if (to_ctf) {
81#if defined(HAVE_LIBBABELTRACE_SUPPORT) && defined(HAVE_LIBTRACEEVENT)
82		return bt_convert__perf2ctf(input_name, to_ctf, &opts);
83#else
84		pr_err("The libbabeltrace support is not compiled in. perf should be "
85		       "compiled with environment variables LIBBABELTRACE=1 and "
86		       "LIBBABELTRACE_DIR=/path/to/libbabeltrace/.\n"
87		       "Check also if libbtraceevent devel files are available.\n");
88		return -1;
89#endif
90	}
91
92	return 0;
93}
94
95static struct data_cmd data_cmds[] = {
96	{ "convert", "converts data file between formats", cmd_data_convert },
97	{ .name = NULL, },
98};
99
100int cmd_data(int argc, const char **argv)
101{
102	struct data_cmd *cmd;
103	const char *cmdstr;
104
105	argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
106			     PARSE_OPT_STOP_AT_NON_OPTION);
107
108	if (!argc) {
109		usage_with_options(data_usage, data_options);
110		return -1;
111	}
112
113	cmdstr = argv[0];
114
115	for_each_cmd(cmd) {
116		if (strcmp(cmd->name, cmdstr))
117			continue;
118
119		return cmd->fn(argc, argv);
120	}
121
122	pr_err("Unknown command: %s\n", cmdstr);
123	usage_with_options(data_usage, data_options);
124	return -1;
125}
126