tools/perf/builtin-data.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/compiler.h>
   3 #include "builtin.h"
   4 #include "perf.h"
   5 #include "debug.h"
   6 #include <subcmd/parse-options.h>
   7 #include "data-convert.h"
   8 #include "data-convert-bt.h"
   9
  10 typedef int (*data_cmd_fn_t)(int argc, const char **argv);
  11
  12 struct data_cmd {
  13         const char      *name;
  14         const char      *summary;
  15         data_cmd_fn_t   fn;
  16 };
  17
  18 static struct data_cmd data_cmds[];
  19
  20 #define for_each_cmd(cmd) \
  21         for (cmd = data_cmds; cmd && cmd->name; cmd++)
  22
  23 static const struct option data_options[] = {
  24         OPT_END()
  25 };
  26
  27 static const char * const data_subcommands[] = { "convert", NULL };
  28
  29 static const char *data_usage[] = {
  30         "perf data [<common options>] <command> [<options>]",
  31         NULL
  32 };
  33
  34 static void print_usage(void)
  35 {
  36         struct data_cmd *cmd;
  37
  38         printf("Usage:\n");
  39         printf("\t%s\n\n", data_usage[0]);
  40         printf("\tAvailable commands:\n");
  41
  42         for_each_cmd(cmd) {
  43                 printf("\t %s\t- %s\n", cmd->name, cmd->summary);
  44         }
  45
  46         printf("\n");
  47 }
  48
  49 static const char * const data_convert_usage[] = {
  50         "perf data convert [<options>]",
  51         NULL
  52 };
  53
  54 static int cmd_data_convert(int argc, const char **argv)
  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. perf should be compiled with environment variables LIBBABELTRACE=1 and LIBBABELTRACE_DIR=/path/to/libbabeltrace/\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)
 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);
 122         }
 123
 124         pr_err("Unknown command: %s\n", cmdstr);
 125 usage:
 126         print_usage();
 127         return -1;
 128 }