xref: /openbmc/linux/tools/perf/builtin-data.c (revision 8ffd3d5e)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/compiler.h>
3 #include <stdio.h>
4 #include <string.h>
5 #include "builtin.h"
6 #include "perf.h"
7 #include "debug.h"
8 #include <subcmd/parse-options.h>
9 #include "data-convert.h"
10 
11 typedef int (*data_cmd_fn_t)(int argc, const char **argv);
12 
13 struct data_cmd {
14 	const char	*name;
15 	const char	*summary;
16 	data_cmd_fn_t	fn;
17 };
18 
19 static struct data_cmd data_cmds[];
20 
21 #define for_each_cmd(cmd) \
22 	for (cmd = data_cmds; cmd && cmd->name; cmd++)
23 
24 static const char * const data_subcommands[] = { "convert", NULL };
25 
26 static const char *data_usage[] = {
27 	"perf data convert [<options>]",
28 	NULL
29 };
30 
31 const char *to_json;
32 const char *to_ctf;
33 struct perf_data_convert_opts opts = {
34 	.force = false,
35 	.all = false,
36 };
37 
38 const struct option data_options[] = {
39 		OPT_INCR('v', "verbose", &verbose, "be more verbose"),
40 		OPT_STRING('i', "input", &input_name, "file", "input file name"),
41 		OPT_STRING(0, "to-json", &to_json, NULL, "Convert to JSON format"),
42 #ifdef HAVE_LIBBABELTRACE_SUPPORT
43 		OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
44 		OPT_BOOLEAN(0, "tod", &opts.tod, "Convert time to wall clock time"),
45 #endif
46 		OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
47 		OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
48 		OPT_END()
49 	};
50 
51 static int cmd_data_convert(int argc, const char **argv)
52 {
53 
54 	argc = parse_options(argc, argv, data_options,
55 			     data_usage, 0);
56 	if (argc) {
57 		usage_with_options(data_usage, data_options);
58 		return -1;
59 	}
60 
61 	if (to_json && to_ctf) {
62 		pr_err("You cannot specify both --to-ctf and --to-json.\n");
63 		return -1;
64 	}
65 #ifdef HAVE_LIBBABELTRACE_SUPPORT
66 	if (!to_json && !to_ctf) {
67 		pr_err("You must specify one of --to-ctf or --to-json.\n");
68 		return -1;
69 	}
70 #else
71 	if (!to_json) {
72 		pr_err("You must specify --to-json.\n");
73 	return -1;
74 }
75 #endif
76 
77 	if (to_json)
78 		return bt_convert__perf2json(input_name, to_json, &opts);
79 
80 	if (to_ctf) {
81 #if defined(HAVE_LIBBABELTRACE_SUPPORT) && defined(HAVE_LIBTRACEEVENT)
82 		return bt_convert__perf2ctf(input_name, to_ctf, &opts);
83 #else
84 		pr_err("The libbabeltrace support is not compiled in. perf should be "
85 		       "compiled with environment variables LIBBABELTRACE=1 and "
86 		       "LIBBABELTRACE_DIR=/path/to/libbabeltrace/.\n"
87 		       "Check also if libbtraceevent devel files are available.\n");
88 		return -1;
89 #endif
90 	}
91 
92 	return 0;
93 }
94 
95 static struct data_cmd data_cmds[] = {
96 	{ "convert", "converts data file between formats", cmd_data_convert },
97 	{ .name = NULL, },
98 };
99 
100 int cmd_data(int argc, const char **argv)
101 {
102 	struct data_cmd *cmd;
103 	const char *cmdstr;
104 
105 	argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
106 			     PARSE_OPT_STOP_AT_NON_OPTION);
107 
108 	if (!argc) {
109 		usage_with_options(data_usage, data_options);
110 		return -1;
111 	}
112 
113 	cmdstr = argv[0];
114 
115 	for_each_cmd(cmd) {
116 		if (strcmp(cmd->name, cmdstr))
117 			continue;
118 
119 		return cmd->fn(argc, argv);
120 	}
121 
122 	pr_err("Unknown command: %s\n", cmdstr);
123 	usage_with_options(data_usage, data_options);
124 	return -1;
125 }
126