tools/perf/builtin-kvm.c

   1 #include "builtin.h"
   2 #include "perf.h"
   3
   4 #include "util/util.h"
   5 #include "util/cache.h"
   6 #include "util/symbol.h"
   7 #include "util/thread.h"
   8 #include "util/header.h"
   9 #include "util/session.h"
  10
  11 #include "util/parse-options.h"
  12 #include "util/trace-event.h"
  13
  14 #include "util/debug.h"
  15
  16 #include <sys/prctl.h>
  17
  18 #include <semaphore.h>
  19 #include <pthread.h>
  20 #include <math.h>
  21
  22 static char                     *file_name;
  23 static char                     name_buffer[256];
  24
  25 int                             perf_host = 1;
  26 int                             perf_guest;
  27
  28 static const char * const kvm_usage[] = {
  29         "perf kvm [<options>] {top|record|report|diff|buildid-list}",
  30         NULL
  31 };
  32
  33 static const struct option kvm_options[] = {
  34         OPT_STRING('i', "input", &file_name, "file",
  35                    "Input file name"),
  36         OPT_STRING('o', "output", &file_name, "file",
  37                    "Output file name"),
  38         OPT_BOOLEAN(0, "guest", &perf_guest,
  39                     "Collect guest os data"),
  40         OPT_BOOLEAN(0, "host", &perf_host,
  41                     "Collect guest os data"),
  42         OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory",
  43                    "guest mount directory under which every guest os"
  44                    " instance has a subdir"),
  45         OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name,
  46                    "file", "file saving guest os vmlinux"),
  47         OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms,
  48                    "file", "file saving guest os /proc/kallsyms"),
  49         OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
  50                    "file", "file saving guest os /proc/modules"),
  51         OPT_END()
  52 };
  53
  54 static int __cmd_record(int argc, const char **argv)
  55 {
  56         int rec_argc, i = 0, j;
  57         const char **rec_argv;
  58
  59         rec_argc = argc + 2;
  60         rec_argv = calloc(rec_argc + 1, sizeof(char *));
  61         rec_argv[i++] = strdup("record");
  62         rec_argv[i++] = strdup("-o");
  63         rec_argv[i++] = strdup(file_name);
  64         for (j = 1; j < argc; j++, i++)
  65                 rec_argv[i] = argv[j];
  66
  67         BUG_ON(i != rec_argc);
  68
  69         return cmd_record(i, rec_argv, NULL);
  70 }
  71
  72 static int __cmd_report(int argc, const char **argv)
  73 {
  74         int rec_argc, i = 0, j;
  75         const char **rec_argv;
  76
  77         rec_argc = argc + 2;
  78         rec_argv = calloc(rec_argc + 1, sizeof(char *));
  79         rec_argv[i++] = strdup("report");
  80         rec_argv[i++] = strdup("-i");
  81         rec_argv[i++] = strdup(file_name);
  82         for (j = 1; j < argc; j++, i++)
  83                 rec_argv[i] = argv[j];
  84
  85         BUG_ON(i != rec_argc);
  86
  87         return cmd_report(i, rec_argv, NULL);
  88 }
  89
  90 static int __cmd_buildid_list(int argc, const char **argv)
  91 {
  92         int rec_argc, i = 0, j;
  93         const char **rec_argv;
  94
  95         rec_argc = argc + 2;
  96         rec_argv = calloc(rec_argc + 1, sizeof(char *));
  97         rec_argv[i++] = strdup("buildid-list");
  98         rec_argv[i++] = strdup("-i");
  99         rec_argv[i++] = strdup(file_name);
 100         for (j = 1; j < argc; j++, i++)
 101                 rec_argv[i] = argv[j];
 102
 103         BUG_ON(i != rec_argc);
 104
 105         return cmd_buildid_list(i, rec_argv, NULL);
 106 }
 107
 108 int cmd_kvm(int argc, const char **argv, const char *prefix __used)
 109 {
 110         perf_host = perf_guest = 0;
 111
 112         argc = parse_options(argc, argv, kvm_options, kvm_usage,
 113                         PARSE_OPT_STOP_AT_NON_OPTION);
 114         if (!argc)
 115                 usage_with_options(kvm_usage, kvm_options);
 116
 117         if (!perf_host)
 118                 perf_guest = 1;
 119
 120         if (!file_name) {
 121                 if (perf_host && !perf_guest)
 122                         sprintf(name_buffer, "perf.data.host");
 123                 else if (!perf_host && perf_guest)
 124                         sprintf(name_buffer, "perf.data.guest");
 125                 else
 126                         sprintf(name_buffer, "perf.data.kvm");
 127                 file_name = name_buffer;
 128         }
 129
 130         if (!strncmp(argv[0], "rec", 3))
 131                 return __cmd_record(argc, argv);
 132         else if (!strncmp(argv[0], "rep", 3))
 133                 return __cmd_report(argc, argv);
 134         else if (!strncmp(argv[0], "diff", 4))
 135                 return cmd_diff(argc, argv, NULL);
 136         else if (!strncmp(argv[0], "top", 3))
 137                 return cmd_top(argc, argv, NULL);
 138         else if (!strncmp(argv[0], "buildid-list", 12))
 139                 return __cmd_buildid_list(argc, argv);
 140         else
 141                 usage_with_options(kvm_usage, kvm_options);
 142
 143         return 0;
 144 }