xref: /linux/tools/perf/builtin-data.c (revision b6ebbac51bedf9e98e837688bc838f400196da5e)
1 #include <linux/compiler.h>
2 #include "builtin.h"
3 #include "perf.h"
4 #include "debug.h"
5 #include <subcmd/parse-options.h>
6 #include "data-convert.h"
7 #include "data-convert-bt.h"
8 
9 typedef int (*data_cmd_fn_t)(int argc, const char **argv, const char *prefix);
10 
11 struct data_cmd {
12 	const char	*name;
13 	const char	*summary;
14 	data_cmd_fn_t	fn;
15 };
16 
17 static struct data_cmd data_cmds[];
18 
19 #define for_each_cmd(cmd) \
20 	for (cmd = data_cmds; cmd && cmd->name; cmd++)
21 
22 static const struct option data_options[] = {
23 	OPT_END()
24 };
25 
26 static const char * const data_subcommands[] = { "convert", NULL };
27 
28 static const char *data_usage[] = {
29 	"perf data [<common options>] <command> [<options>]",
30 	NULL
31 };
32 
33 static void print_usage(void)
34 {
35 	struct data_cmd *cmd;
36 
37 	printf("Usage:\n");
38 	printf("\t%s\n\n", data_usage[0]);
39 	printf("\tAvailable commands:\n");
40 
41 	for_each_cmd(cmd) {
42 		printf("\t %s\t- %s\n", cmd->name, cmd->summary);
43 	}
44 
45 	printf("\n");
46 }
47 
48 static const char * const data_convert_usage[] = {
49 	"perf data convert [<options>]",
50 	NULL
51 };
52 
53 static int cmd_data_convert(int argc, const char **argv,
54 			    const char *prefix __maybe_unused)
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.\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 
96 static struct data_cmd data_cmds[] = {
97 	{ "convert", "converts data file between formats", cmd_data_convert },
98 	{ .name = NULL, },
99 };
100 
101 int cmd_data(int argc, const char **argv, const char *prefix)
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, prefix);
122 	}
123 
124 	pr_err("Unknown command: %s\n", cmdstr);
125 usage:
126 	print_usage();
127 	return -1;
128 }
129