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#include "data-convert-bt.h"
 11
 12typedef int (*data_cmd_fn_t)(int argc, const char **argv);
 13
 14struct data_cmd {
 15	const char	*name;
 16	const char	*summary;
 17	data_cmd_fn_t	fn;
 18};
 19
 20static struct data_cmd data_cmds[];
 21
 22#define for_each_cmd(cmd) \
 23	for (cmd = data_cmds; cmd && cmd->name; cmd++)
 24
 25static const struct option data_options[] = {
 26	OPT_END()
 27};
 28
 29static const char * const data_subcommands[] = { "convert", NULL };
 30
 31static const char *data_usage[] = {
 32	"perf data [<common options>] <command> [<options>]",
 33	NULL
 34};
 35
 36static void print_usage(void)
 37{
 38	struct data_cmd *cmd;
 39
 40	printf("Usage:\n");
 41	printf("\t%s\n\n", data_usage[0]);
 42	printf("\tAvailable commands:\n");
 43
 44	for_each_cmd(cmd) {
 45		printf("\t %s\t- %s\n", cmd->name, cmd->summary);
 46	}
 47
 48	printf("\n");
 49}
 50
 51static const char * const data_convert_usage[] = {
 52	"perf data convert [<options>]",
 53	NULL
 54};
 55
 56static int cmd_data_convert(int argc, const char **argv)
 57{
 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#ifdef HAVE_LIBBABELTRACE_SUPPORT
 67		OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
 68#endif
 69		OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
 70		OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
 71		OPT_END()
 72	};
 73
 74#ifndef HAVE_LIBBABELTRACE_SUPPORT
 75	pr_err("No conversion support compiled in. perf should be compiled with environment variables LIBBABELTRACE=1 and LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n");
 76	return -1;
 77#endif
 78
 79	argc = parse_options(argc, argv, options,
 80			     data_convert_usage, 0);
 81	if (argc) {
 82		usage_with_options(data_convert_usage, options);
 83		return -1;
 84	}
 85
 86	if (to_ctf) {
 87#ifdef HAVE_LIBBABELTRACE_SUPPORT
 88		return bt_convert__perf2ctf(input_name, to_ctf, &opts);
 89#else
 90		pr_err("The libbabeltrace support is not compiled in.\n");
 91		return -1;
 92#endif
 93	}
 94
 95	return 0;
 96}
 97
 98static struct data_cmd data_cmds[] = {
 99	{ "convert", "converts data file between formats", cmd_data_convert },
100	{ .name = NULL, },
101};
102
103int cmd_data(int argc, const char **argv)
104{
105	struct data_cmd *cmd;
106	const char *cmdstr;
107
108	/* No command specified. */
109	if (argc < 2)
110		goto usage;
111
112	argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
113			     PARSE_OPT_STOP_AT_NON_OPTION);
114	if (argc < 1)
115		goto usage;
116
117	cmdstr = argv[0];
118
119	for_each_cmd(cmd) {
120		if (strcmp(cmd->name, cmdstr))
121			continue;
122
123		return cmd->fn(argc, argv);
124	}
125
126	pr_err("Unknown command: %s\n", cmdstr);
127usage:
128	print_usage();
129	return -1;
130}