Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[firefly-linux-kernel-4.4.55.git] / tools / perf / builtin-data.c
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 }