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}