1// SPDX-License-Identifier: GPL-2.0
  2#include <linux/compiler.h>
  3#include "builtin.h"
  4#include "perf.h"
  5#include "debug.h"
  6#include <subcmd/parse-options.h>
  7#include "data-convert.h"
  8#include "data-convert-bt.h"
  9
 10typedef int (*data_cmd_fn_t)(int argc, const char **argv);
 11
 12struct data_cmd {
 13	const char	*name;
 14	const char	*summary;
 15	data_cmd_fn_t	fn;
 16};
 17
 18static struct data_cmd data_cmds[];
 19
 20#define for_each_cmd(cmd) \
 21	for (cmd = data_cmds; cmd && cmd->name; cmd++)
 22
 23static const struct option data_options[] = {
 24	OPT_END()
 25};
 26
 27static const char * const data_subcommands[] = { "convert", NULL };
 28
 29static const char *data_usage[] = {
 30	"perf data [<common options>] <command> [<options>]",
 31	NULL
 32};
 33
 34static void print_usage(void)
 35{
 36	struct data_cmd *cmd;
 37
 38	printf("Usage:\n");
 39	printf("\t%s\n\n", data_usage[0]);
 40	printf("\tAvailable commands:\n");
 41
 42	for_each_cmd(cmd) {
 43		printf("\t %s\t- %s\n", cmd->name, cmd->summary);
 44	}
 45
 46	printf("\n");
 47}
 48
 49static const char * const data_convert_usage[] = {
 50	"perf data convert [<options>]",
 51	NULL
 52};
 53
 54static int cmd_data_convert(int argc, const char **argv)
 55{
 56	const char *to_ctf     = NULL;
 57	struct perf_data_convert_opts opts = {
 58		.force = false,
 59		.all = false,
 60	};
 61	const struct option options[] = {
 62		OPT_INCR('v', "verbose", &verbose, "be more verbose"),
 63		OPT_STRING('i', "input", &input_name, "file", "input file name"),
 64#ifdef HAVE_LIBBABELTRACE_SUPPORT
 65		OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
 66#endif
 67		OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
 68		OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
 69		OPT_END()
 70	};
 71
 72#ifndef HAVE_LIBBABELTRACE_SUPPORT
 73	pr_err("No conversion support compiled in. perf should be compiled with environment variables LIBBABELTRACE=1 and LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n");
 74	return -1;
 75#endif
 76
 77	argc = parse_options(argc, argv, options,
 78			     data_convert_usage, 0);
 79	if (argc) {
 80		usage_with_options(data_convert_usage, options);
 81		return -1;
 82	}
 83
 84	if (to_ctf) {
 85#ifdef HAVE_LIBBABELTRACE_SUPPORT
 86		return bt_convert__perf2ctf(input_name, to_ctf, &opts);
 87#else
 88		pr_err("The libbabeltrace support is not compiled in.\n");
 89		return -1;
 90#endif
 91	}
 92
 93	return 0;
 94}
 95
 96static struct data_cmd data_cmds[] = {
 97	{ "convert", "converts data file between formats", cmd_data_convert },
 98	{ .name = NULL, },
 99};
100
101int cmd_data(int argc, const char **argv)
102{
103	struct data_cmd *cmd;
104	const char *cmdstr;
105
106	/* No command specified. */
107	if (argc < 2)
108		goto usage;
109
110	argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
111			     PARSE_OPT_STOP_AT_NON_OPTION);
112	if (argc < 1)
113		goto usage;
114
115	cmdstr = argv[0];
116
117	for_each_cmd(cmd) {
118		if (strcmp(cmd->name, cmdstr))
119			continue;
120
121		return cmd->fn(argc, argv);
122	}
123
124	pr_err("Unknown command: %s\n", cmdstr);
125usage:
126	print_usage();
127	return -1;
128}