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 "perf.h"
  7#include "debug.h"
  8#include <subcmd/parse-options.h>
  9#include "data-convert.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 struct option data_options[] = {
 25	OPT_END()
 26};
 27
 28static const char * const data_subcommands[] = { "convert", NULL };
 29
 30static const char *data_usage[] = {
 31	"perf data [<common options>] <command> [<options>]",
 32	NULL
 33};
 34
 35static void print_usage(void)
 36{
 37	struct data_cmd *cmd;
 38
 39	printf("Usage:\n");
 40	printf("\t%s\n\n", data_usage[0]);
 41	printf("\tAvailable commands:\n");
 42
 43	for_each_cmd(cmd) {
 44		printf("\t %s\t- %s\n", cmd->name, cmd->summary);
 45	}
 46
 47	printf("\n");
 48}
 49
 50static const char * const data_convert_usage[] = {
 51	"perf data convert [<options>]",
 52	NULL
 53};
 54
 55static int cmd_data_convert(int argc, const char **argv)
 56{
 57	const char *to_json = NULL;
 58	const char *to_ctf = NULL;
 59	struct perf_data_convert_opts opts = {
 60		.force = false,
 61		.all = false,
 62	};
 63	const struct option options[] = {
 64		OPT_INCR('v', "verbose", &verbose, "be more verbose"),
 65		OPT_STRING('i', "input", &input_name, "file", "input file name"),
 66		OPT_STRING(0, "to-json", &to_json, NULL, "Convert to JSON format"),
 67#ifdef HAVE_LIBBABELTRACE_SUPPORT
 68		OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
 69		OPT_BOOLEAN(0, "tod", &opts.tod, "Convert time to wall clock time"),
 70#endif
 71		OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
 72		OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
 73		OPT_END()
 74	};
 75
 76	argc = parse_options(argc, argv, options,
 77			     data_convert_usage, 0);
 78	if (argc) {
 79		usage_with_options(data_convert_usage, options);
 80		return -1;
 81	}
 82
 83	if (to_json && to_ctf) {
 84		pr_err("You cannot specify both --to-ctf and --to-json.\n");
 85		return -1;
 86	}
 87	if (!to_json && !to_ctf) {
 88		pr_err("You must specify one of --to-ctf or --to-json.\n");
 89		return -1;
 90	}
 91
 92	if (to_json)
 93		return bt_convert__perf2json(input_name, to_json, &opts);
 94
 95	if (to_ctf) {
 96#ifdef HAVE_LIBBABELTRACE_SUPPORT
 97		return bt_convert__perf2ctf(input_name, to_ctf, &opts);
 98#else
 99		pr_err("The libbabeltrace support is not compiled in. perf should be "
100		       "compiled with environment variables LIBBABELTRACE=1 and "
101		       "LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n");
102		return -1;
103#endif
104	}
105
106	return 0;
107}
108
109static struct data_cmd data_cmds[] = {
110	{ "convert", "converts data file between formats", cmd_data_convert },
111	{ .name = NULL, },
112};
113
114int cmd_data(int argc, const char **argv)
115{
116	struct data_cmd *cmd;
117	const char *cmdstr;
118
119	/* No command specified. */
120	if (argc < 2)
121		goto usage;
122
123	argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
124			     PARSE_OPT_STOP_AT_NON_OPTION);
125	if (argc < 1)
126		goto usage;
127
128	cmdstr = argv[0];
129
130	for_each_cmd(cmd) {
131		if (strcmp(cmd->name, cmdstr))
132			continue;
133
134		return cmd->fn(argc, argv);
135	}
136
137	pr_err("Unknown command: %s\n", cmdstr);
138usage:
139	print_usage();
140	return -1;
141}