LXR linux/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
  22static const char               *file_name;
  23static char                     name_buffer[256];
  24
  25bool                            perf_host = 1;
  26bool                            perf_guest;
  27
  28static const char * const kvm_usage[] = {
  29        "perf kvm [<options>] {top|record|report|diff|buildid-list}",
  30        NULL
  31};
  32
  33static 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
  54static 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
  72static 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
  90static 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
 108int 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}
 145