tools/perf/builtin-data.c

   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);
  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 {
  55         const char *to_ctf     = NULL;
  56         struct perf_data_convert_opts opts = {
  57                 .force = false,
  58                 .all = false,
  59         };
  60         const struct option options[] = {
  61                 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
  62                 OPT_STRING('i', "input", &input_name, "file", "input file name"),
  63 #ifdef HAVE_LIBBABELTRACE_SUPPORT
  64                 OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
  65 #endif
  66                 OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
  67                 OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
  68                 OPT_END()
  69         };
  70
  71 #ifndef HAVE_LIBBABELTRACE_SUPPORT
  72         pr_err("No conversion support compiled in. perf should be compiled with environment variables LIBBABELTRACE=1 and LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n");
  73         return -1;
  74 #endif
  75
  76         argc = parse_options(argc, argv, options,
  77                              data_convert_usage, 0);
  78         if (argc) {
  79                 usage_with_options(data_convert_usage, options);
  80                 return -1;
  81         }
  82
  83         if (to_ctf) {
  84 #ifdef HAVE_LIBBABELTRACE_SUPPORT
  85                 return bt_convert__perf2ctf(input_name, to_ctf, &opts);
  86 #else
  87                 pr_err("The libbabeltrace support is not compiled in.\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         /* No command specified. */
 106         if (argc < 2)
 107                 goto usage;
 108
 109         argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
 110                              PARSE_OPT_STOP_AT_NON_OPTION);
 111         if (argc < 1)
 112                 goto usage;
 113
 114         cmdstr = argv[0];
 115
 116         for_each_cmd(cmd) {
 117                 if (strcmp(cmd->name, cmdstr))
 118                         continue;
 119
 120                 return cmd->fn(argc, argv);
 121         }
 122
 123         pr_err("Unknown command: %s\n", cmdstr);
 124 usage:
 125         print_usage();
 126         return -1;
 127 }