linux/tools/perf/builtin-data.c
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   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#include "data-convert-bt.h"
  11
  12typedef int (*data_cmd_fn_t)(int argc, const char **argv);
  13
  14struct data_cmd {
  15        const char      *name;
  16        const char      *summary;
  17        data_cmd_fn_t   fn;
  18};
  19
  20static struct data_cmd data_cmds[];
  21
  22#define for_each_cmd(cmd) \
  23        for (cmd = data_cmds; cmd && cmd->name; cmd++)
  24
  25static const struct option data_options[] = {
  26        OPT_END()
  27};
  28
  29static const char * const data_subcommands[] = { "convert", NULL };
  30
  31static const char *data_usage[] = {
  32        "perf data [<common options>] <command> [<options>]",
  33        NULL
  34};
  35
  36static void print_usage(void)
  37{
  38        struct data_cmd *cmd;
  39
  40        printf("Usage:\n");
  41        printf("\t%s\n\n", data_usage[0]);
  42        printf("\tAvailable commands:\n");
  43
  44        for_each_cmd(cmd) {
  45                printf("\t %s\t- %s\n", cmd->name, cmd->summary);
  46        }
  47
  48        printf("\n");
  49}
  50
  51static const char * const data_convert_usage[] = {
  52        "perf data convert [<options>]",
  53        NULL
  54};
  55
  56static int cmd_data_convert(int argc, const char **argv)
  57{
  58        const char *to_ctf     = NULL;
  59        struct perf_data_convert_opts opts = {
  60                .force = false,
  61                .all = false,
  62        };
  63        const struct option options[] = {
  64                OPT_INCR('v', "verbose", &verbose, "be more verbose"),
  65                OPT_STRING('i', "input", &input_name, "file", "input file name"),
  66#ifdef HAVE_LIBBABELTRACE_SUPPORT
  67                OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
  68                OPT_BOOLEAN(0, "tod", &opts.tod, "Convert time to wall clock time"),
  69#endif
  70                OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
  71                OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
  72                OPT_END()
  73        };
  74
  75#ifndef HAVE_LIBBABELTRACE_SUPPORT
  76        pr_err("No conversion support compiled in. perf should be compiled with environment variables LIBBABELTRACE=1 and LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n");
  77        return -1;
  78#endif
  79
  80        argc = parse_options(argc, argv, options,
  81                             data_convert_usage, 0);
  82        if (argc) {
  83                usage_with_options(data_convert_usage, options);
  84                return -1;
  85        }
  86
  87        if (to_ctf) {
  88#ifdef HAVE_LIBBABELTRACE_SUPPORT
  89                return bt_convert__perf2ctf(input_name, to_ctf, &opts);
  90#else
  91                pr_err("The libbabeltrace support is not compiled in.\n");
  92                return -1;
  93#endif
  94        }
  95
  96        return 0;
  97}
  98
  99static struct data_cmd data_cmds[] = {
 100        { "convert", "converts data file between formats", cmd_data_convert },
 101        { .name = NULL, },
 102};
 103
 104int cmd_data(int argc, const char **argv)
 105{
 106        struct data_cmd *cmd;
 107        const char *cmdstr;
 108
 109        /* No command specified. */
 110        if (argc < 2)
 111                goto usage;
 112
 113        argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
 114                             PARSE_OPT_STOP_AT_NON_OPTION);
 115        if (argc < 1)
 116                goto usage;
 117
 118        cmdstr = argv[0];
 119
 120        for_each_cmd(cmd) {
 121                if (strcmp(cmd->name, cmdstr))
 122                        continue;
 123
 124                return cmd->fn(argc, argv);
 125        }
 126
 127        pr_err("Unknown command: %s\n", cmdstr);
 128usage:
 129        print_usage();
 130        return -1;
 131}
 132