linux/tools/perf/builtin-kvm.c
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   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
  25static const char * const kvm_usage[] = {
  26        "perf kvm [<options>] {top|record|report|diff|buildid-list}",
  27        NULL
  28};
  29
  30static 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
  51static 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
  69static 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
  87static 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
 105int cmd_kvm(int argc, const char **argv, const char *prefix __used)
 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}
 143
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