swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
Tip revision: bcf876870b95592b52519ed4aafcf9d95999bc9c authored by Linus Torvalds on 02 August 2020, 21:21:45 UTC
Linux 5.8
Linux 5.8
Tip revision: bcf8768
builtin-data.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/compiler.h>
#include <stdio.h>
#include <string.h>
#include "builtin.h"
#include "perf.h"
#include "debug.h"
#include <subcmd/parse-options.h>
#include "data-convert.h"
#include "data-convert-bt.h"
typedef int (*data_cmd_fn_t)(int argc, const char **argv);
struct data_cmd {
const char *name;
const char *summary;
data_cmd_fn_t fn;
};
static struct data_cmd data_cmds[];
#define for_each_cmd(cmd) \
for (cmd = data_cmds; cmd && cmd->name; cmd++)
static const struct option data_options[] = {
OPT_END()
};
static const char * const data_subcommands[] = { "convert", NULL };
static const char *data_usage[] = {
"perf data [<common options>] <command> [<options>]",
NULL
};
static void print_usage(void)
{
struct data_cmd *cmd;
printf("Usage:\n");
printf("\t%s\n\n", data_usage[0]);
printf("\tAvailable commands:\n");
for_each_cmd(cmd) {
printf("\t %s\t- %s\n", cmd->name, cmd->summary);
}
printf("\n");
}
static const char * const data_convert_usage[] = {
"perf data convert [<options>]",
NULL
};
static int cmd_data_convert(int argc, const char **argv)
{
const char *to_ctf = NULL;
struct perf_data_convert_opts opts = {
.force = false,
.all = false,
};
const struct option options[] = {
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_STRING('i', "input", &input_name, "file", "input file name"),
#ifdef HAVE_LIBBABELTRACE_SUPPORT
OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
#endif
OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
OPT_END()
};
#ifndef HAVE_LIBBABELTRACE_SUPPORT
pr_err("No conversion support compiled in. perf should be compiled with environment variables LIBBABELTRACE=1 and LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n");
return -1;
#endif
argc = parse_options(argc, argv, options,
data_convert_usage, 0);
if (argc) {
usage_with_options(data_convert_usage, options);
return -1;
}
if (to_ctf) {
#ifdef HAVE_LIBBABELTRACE_SUPPORT
return bt_convert__perf2ctf(input_name, to_ctf, &opts);
#else
pr_err("The libbabeltrace support is not compiled in.\n");
return -1;
#endif
}
return 0;
}
static struct data_cmd data_cmds[] = {
{ "convert", "converts data file between formats", cmd_data_convert },
{ .name = NULL, },
};
int cmd_data(int argc, const char **argv)
{
struct data_cmd *cmd;
const char *cmdstr;
/* No command specified. */
if (argc < 2)
goto usage;
argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (argc < 1)
goto usage;
cmdstr = argv[0];
for_each_cmd(cmd) {
if (strcmp(cmd->name, cmdstr))
continue;
return cmd->fn(argc, argv);
}
pr_err("Unknown command: %s\n", cmdstr);
usage:
print_usage();
return -1;
}