v4.19.13 snapshot.
diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c
new file mode 100644
index 0000000..dde25d4
--- /dev/null
+++ b/tools/perf/builtin-data.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.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;
+}