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