xref: /linux/tools/perf/builtin-data.c (revision b85d45947951d23cb22d90caecf4c1eb81342c96)
1 #include <linux/compiler.h>
2 #include "builtin.h"
3 #include "perf.h"
4 #include "debug.h"
5 #include "parse-options.h"
6 #include "data-convert-bt.h"
7 
8 typedef int (*data_cmd_fn_t)(int argc, const char **argv, const char *prefix);
9 
10 struct data_cmd {
11 	const char	*name;
12 	const char	*summary;
13 	data_cmd_fn_t	fn;
14 };
15 
16 static struct data_cmd data_cmds[];
17 
18 #define for_each_cmd(cmd) \
19 	for (cmd = data_cmds; cmd && cmd->name; cmd++)
20 
21 static const struct option data_options[] = {
22 	OPT_END()
23 };
24 
25 static const char * const data_subcommands[] = { "convert", NULL };
26 
27 static const char *data_usage[] = {
28 	"perf data [<common options>] <command> [<options>]",
29 	NULL
30 };
31 
32 static void print_usage(void)
33 {
34 	struct data_cmd *cmd;
35 
36 	printf("Usage:\n");
37 	printf("\t%s\n\n", data_usage[0]);
38 	printf("\tAvailable commands:\n");
39 
40 	for_each_cmd(cmd) {
41 		printf("\t %s\t- %s\n", cmd->name, cmd->summary);
42 	}
43 
44 	printf("\n");
45 }
46 
47 static const char * const data_convert_usage[] = {
48 	"perf data convert [<options>]",
49 	NULL
50 };
51 
52 static int cmd_data_convert(int argc, const char **argv,
53 			    const char *prefix __maybe_unused)
54 {
55 	const char *to_ctf     = NULL;
56 	bool force = false;
57 	const struct option options[] = {
58 		OPT_INCR('v', "verbose", &verbose, "be more verbose"),
59 		OPT_STRING('i', "input", &input_name, "file", "input file name"),
60 #ifdef HAVE_LIBBABELTRACE_SUPPORT
61 		OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
62 #endif
63 		OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
64 		OPT_END()
65 	};
66 
67 #ifndef HAVE_LIBBABELTRACE_SUPPORT
68 	pr_err("No conversion support compiled in.\n");
69 	return -1;
70 #endif
71 
72 	argc = parse_options(argc, argv, options,
73 			     data_convert_usage, 0);
74 	if (argc) {
75 		usage_with_options(data_convert_usage, options);
76 		return -1;
77 	}
78 
79 	if (to_ctf) {
80 #ifdef HAVE_LIBBABELTRACE_SUPPORT
81 		return bt_convert__perf2ctf(input_name, to_ctf, force);
82 #else
83 		pr_err("The libbabeltrace support is not compiled in.\n");
84 		return -1;
85 #endif
86 	}
87 
88 	return 0;
89 }
90 
91 static struct data_cmd data_cmds[] = {
92 	{ "convert", "converts data file between formats", cmd_data_convert },
93 	{ .name = NULL, },
94 };
95 
96 int cmd_data(int argc, const char **argv, const char *prefix)
97 {
98 	struct data_cmd *cmd;
99 	const char *cmdstr;
100 
101 	/* No command specified. */
102 	if (argc < 2)
103 		goto usage;
104 
105 	argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
106 			     PARSE_OPT_STOP_AT_NON_OPTION);
107 	if (argc < 1)
108 		goto usage;
109 
110 	cmdstr = argv[0];
111 
112 	for_each_cmd(cmd) {
113 		if (strcmp(cmd->name, cmdstr))
114 			continue;
115 
116 		return cmd->fn(argc, argv, prefix);
117 	}
118 
119 	pr_err("Unknown command: %s\n", cmdstr);
120 usage:
121 	print_usage();
122 	return -1;
123 }
124