tools/perf/builtin-mem.c

   1 #include "builtin.h"
   2 #include "perf.h"
   3
   4 #include "util/parse-options.h"
   5 #include "util/trace-event.h"
   6 #include "util/tool.h"
   7 #include "util/session.h"
   8
   9 #define MEM_OPERATION_LOAD      "load"
  10 #define MEM_OPERATION_STORE     "store"
  11
  12 static const char       *mem_operation          = MEM_OPERATION_LOAD;
  13
  14 struct perf_mem {
  15         struct perf_tool        tool;
  16         char const              *input_name;
  17         symbol_filter_t         annotate_init;
  18         bool                    hide_unresolved;
  19         bool                    dump_raw;
  20         const char              *cpu_list;
  21         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
  22 };
  23
  24 static const char * const mem_usage[] = {
  25         "perf mem [<options>] {record <command> |report}",
  26         NULL
  27 };
  28
  29 static int __cmd_record(int argc, const char **argv)
  30 {
  31         int rec_argc, i = 0, j;
  32         const char **rec_argv;
  33         char event[64];
  34         int ret;
  35
  36         rec_argc = argc + 4;
  37         rec_argv = calloc(rec_argc + 1, sizeof(char *));
  38         if (!rec_argv)
  39                 return -1;
  40
  41         rec_argv[i++] = strdup("record");
  42         if (!strcmp(mem_operation, MEM_OPERATION_LOAD))
  43                 rec_argv[i++] = strdup("-W");
  44         rec_argv[i++] = strdup("-d");
  45         rec_argv[i++] = strdup("-e");
  46
  47         if (strcmp(mem_operation, MEM_OPERATION_LOAD))
  48                 sprintf(event, "cpu/mem-stores/pp");
  49         else
  50                 sprintf(event, "cpu/mem-loads/pp");
  51
  52         rec_argv[i++] = strdup(event);
  53         for (j = 1; j < argc; j++, i++)
  54                 rec_argv[i] = argv[j];
  55
  56         ret = cmd_record(i, rec_argv, NULL);
  57         free(rec_argv);
  58         return ret;
  59 }
  60
  61 static int
  62 dump_raw_samples(struct perf_tool *tool,
  63                  union perf_event *event,
  64                  struct perf_sample *sample,
  65                  struct perf_evsel *evsel __maybe_unused,
  66                  struct machine *machine)
  67 {
  68         struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
  69         struct addr_location al;
  70         const char *fmt;
  71
  72         if (perf_event__preprocess_sample(event, machine, &al, sample,
  73                                 mem->annotate_init) < 0) {
  74                 fprintf(stderr, "problem processing %d event, skipping it.\n",
  75                                 event->header.type);
  76                 return -1;
  77         }
  78
  79         if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
  80                 return 0;
  81
  82         if (al.map != NULL)
  83                 al.map->dso->hit = 1;
  84
  85         if (symbol_conf.field_sep) {
  86                 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
  87                       "%s0x%"PRIx64"%s%s:%s\n";
  88         } else {
  89                 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
  90                       "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
  91                 symbol_conf.field_sep = " ";
  92         }
  93
  94         printf(fmt,
  95                 sample->pid,
  96                 symbol_conf.field_sep,
  97                 sample->tid,
  98                 symbol_conf.field_sep,
  99                 event->ip.ip,
 100                 symbol_conf.field_sep,
 101                 sample->addr,
 102                 symbol_conf.field_sep,
 103                 sample->weight,
 104                 symbol_conf.field_sep,
 105                 sample->data_src,
 106                 symbol_conf.field_sep,
 107                 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
 108                 al.sym ? al.sym->name : "???");
 109
 110         return 0;
 111 }
 112
 113 static int process_sample_event(struct perf_tool *tool,
 114                                 union perf_event *event,
 115                                 struct perf_sample *sample,
 116                                 struct perf_evsel *evsel,
 117                                 struct machine *machine)
 118 {
 119         return dump_raw_samples(tool, event, sample, evsel, machine);
 120 }
 121
 122 static int report_raw_events(struct perf_mem *mem)
 123 {
 124         int err = -EINVAL;
 125         int ret;
 126         struct perf_session *session = perf_session__new(input_name, O_RDONLY,
 127                                                          0, false, &mem->tool);
 128
 129         if (session == NULL)
 130                 return -ENOMEM;
 131
 132         if (mem->cpu_list) {
 133                 ret = perf_session__cpu_bitmap(session, mem->cpu_list,
 134                                                mem->cpu_bitmap);
 135                 if (ret)
 136                         goto out_delete;
 137         }
 138
 139         if (symbol__init() < 0)
 140                 return -1;
 141
 142         printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
 143
 144         err = perf_session__process_events(session, &mem->tool);
 145         if (err)
 146                 return err;
 147
 148         return 0;
 149
 150 out_delete:
 151         perf_session__delete(session);
 152         return err;
 153 }
 154
 155 static int report_events(int argc, const char **argv, struct perf_mem *mem)
 156 {
 157         const char **rep_argv;
 158         int ret, i = 0, j, rep_argc;
 159
 160         if (mem->dump_raw)
 161                 return report_raw_events(mem);
 162
 163         rep_argc = argc + 3;
 164         rep_argv = calloc(rep_argc + 1, sizeof(char *));
 165         if (!rep_argv)
 166                 return -1;
 167
 168         rep_argv[i++] = strdup("report");
 169         rep_argv[i++] = strdup("--mem-mode");
 170         rep_argv[i++] = strdup("-n"); /* display number of samples */
 171
 172         /*
 173          * there is no weight (cost) associated with stores, so don't print
 174          * the column
 175          */
 176         if (strcmp(mem_operation, MEM_OPERATION_LOAD))
 177                 rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr,"
 178                                        "dso_daddr,tlb,locked");
 179
 180         for (j = 1; j < argc; j++, i++)
 181                 rep_argv[i] = argv[j];
 182
 183         ret = cmd_report(i, rep_argv, NULL);
 184         free(rep_argv);
 185         return ret;
 186 }
 187
 188 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
 189 {
 190         struct stat st;
 191         struct perf_mem mem = {
 192                 .tool = {
 193                         .sample         = process_sample_event,
 194                         .mmap           = perf_event__process_mmap,
 195                         .comm           = perf_event__process_comm,
 196                         .lost           = perf_event__process_lost,
 197                         .fork           = perf_event__process_fork,
 198                         .build_id       = perf_event__process_build_id,
 199                         .ordered_samples = true,
 200                 },
 201                 .input_name              = "perf.data",
 202         };
 203         const struct option mem_options[] = {
 204         OPT_STRING('t', "type", &mem_operation,
 205                    "type", "memory operations(load/store)"),
 206         OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
 207                     "dump raw samples in ASCII"),
 208         OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
 209                     "Only display entries resolved to a symbol"),
 210         OPT_STRING('i', "input", &input_name, "file",
 211                    "input file name"),
 212         OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
 213                    "list of cpus to profile"),
 214         OPT_STRING('x', "field-separator", &symbol_conf.field_sep,
 215                    "separator",
 216                    "separator for columns, no spaces will be added"
 217                    " between columns '.' is reserved."),
 218         OPT_END()
 219         };
 220
 221         argc = parse_options(argc, argv, mem_options, mem_usage,
 222                              PARSE_OPT_STOP_AT_NON_OPTION);
 223
 224         if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation))
 225                 usage_with_options(mem_usage, mem_options);
 226
 227         if (!mem.input_name || !strlen(mem.input_name)) {
 228                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
 229                         mem.input_name = "-";
 230                 else
 231                         mem.input_name = "perf.data";
 232         }
 233
 234         if (!strncmp(argv[0], "rec", 3))
 235                 return __cmd_record(argc, argv);
 236         else if (!strncmp(argv[0], "rep", 3))
 237                 return report_events(argc, argv, &mem);
 238         else
 239                 usage_with_options(mem_usage, mem_options);
 240
 241         return 0;
 242 }