tools/perf/builtin-version.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include "builtin.h"
   3 #include "color.h"
   4 #include "util/debug.h"
   5 #include "util/header.h"
   6 #include <tools/config.h>
   7 #include <stdbool.h>
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include <subcmd/parse-options.h>
  11
  12 struct version {
  13         bool    build_options;
  14 };
  15
  16 static struct version version;
  17
  18 static struct option version_options[] = {
  19         OPT_BOOLEAN(0, "build-options", &version.build_options,
  20                     "display the build options"),
  21         OPT_END(),
  22 };
  23
  24 static const char * const version_usage[] = {
  25         "perf version [<options>]",
  26         NULL
  27 };
  28
  29 static void on_off_print(const char *status)
  30 {
  31         printf("[ ");
  32
  33         if (!strcmp(status, "OFF"))
  34                 color_fprintf(stdout, PERF_COLOR_RED, "%-3s", status);
  35         else
  36                 color_fprintf(stdout, PERF_COLOR_GREEN, "%-3s", status);
  37
  38         printf(" ]");
  39 }
  40
  41 static void status_print(const char *name, const char *macro,
  42                          const char *status)
  43 {
  44         printf("%22s: ", name);
  45         on_off_print(status);
  46         printf("  # %s\n", macro);
  47 }
  48
  49 #define STATUS(feature)                                   \
  50 do {                                                      \
  51         if (feature.is_builtin)                               \
  52                 status_print(feature.name, feature.macro, "on");  \
  53         else                                                  \
  54                 status_print(feature.name, feature.macro, "OFF"); \
  55 } while (0)
  56
  57 static void library_status(void)
  58 {
  59         for (int i = 0; supported_features[i].name; ++i)
  60                 STATUS(supported_features[i]);
  61 }
  62
  63 int cmd_version(int argc, const char **argv)
  64 {
  65         argc = parse_options(argc, argv, version_options, version_usage,
  66                              PARSE_OPT_STOP_AT_NON_OPTION);
  67
  68         printf("perf version %s\n", perf_version_string);
  69
  70         if (version.build_options || verbose > 0)
  71                 library_status();
  72
  73         return 0;
  74 }