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 #include "util/data.h" 9 10 #define MEM_OPERATION_LOAD 0x1 11 #define MEM_OPERATION_STORE 0x2 12 13 struct perf_mem { 14 struct perf_tool tool; 15 char const *input_name; 16 bool hide_unresolved; 17 bool dump_raw; 18 int operation; 19 const char *cpu_list; 20 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 21 }; 22 23 static int __cmd_record(int argc, const char **argv, struct perf_mem *mem) 24 { 25 int rec_argc, i = 0, j; 26 const char **rec_argv; 27 int ret; 28 29 rec_argc = argc + 7; /* max number of arguments */ 30 rec_argv = calloc(rec_argc + 1, sizeof(char *)); 31 if (!rec_argv) 32 return -1; 33 34 rec_argv[i++] = "record"; 35 36 if (mem->operation & MEM_OPERATION_LOAD) 37 rec_argv[i++] = "-W"; 38 39 rec_argv[i++] = "-d"; 40 41 if (mem->operation & MEM_OPERATION_LOAD) { 42 rec_argv[i++] = "-e"; 43 rec_argv[i++] = "cpu/mem-loads/pp"; 44 } 45 46 if (mem->operation & MEM_OPERATION_STORE) { 47 rec_argv[i++] = "-e"; 48 rec_argv[i++] = "cpu/mem-stores/pp"; 49 } 50 51 for (j = 1; j < argc; j++, i++) 52 rec_argv[i] = argv[j]; 53 54 ret = cmd_record(i, rec_argv, NULL); 55 free(rec_argv); 56 return ret; 57 } 58 59 static int 60 dump_raw_samples(struct perf_tool *tool, 61 union perf_event *event, 62 struct perf_sample *sample, 63 struct machine *machine) 64 { 65 struct perf_mem *mem = container_of(tool, struct perf_mem, tool); 66 struct addr_location al; 67 const char *fmt; 68 69 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 70 fprintf(stderr, "problem processing %d event, skipping it.\n", 71 event->header.type); 72 return -1; 73 } 74 75 if (al.filtered || (mem->hide_unresolved && al.sym == NULL)) 76 return 0; 77 78 if (al.map != NULL) 79 al.map->dso->hit = 1; 80 81 if (symbol_conf.field_sep) { 82 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64 83 "%s0x%"PRIx64"%s%s:%s\n"; 84 } else { 85 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64 86 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n"; 87 symbol_conf.field_sep = " "; 88 } 89 90 printf(fmt, 91 sample->pid, 92 symbol_conf.field_sep, 93 sample->tid, 94 symbol_conf.field_sep, 95 sample->ip, 96 symbol_conf.field_sep, 97 sample->addr, 98 symbol_conf.field_sep, 99 sample->weight, 100 symbol_conf.field_sep, 101 sample->data_src, 102 symbol_conf.field_sep, 103 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???", 104 al.sym ? al.sym->name : "???"); 105 106 return 0; 107 } 108 109 static int process_sample_event(struct perf_tool *tool, 110 union perf_event *event, 111 struct perf_sample *sample, 112 struct perf_evsel *evsel __maybe_unused, 113 struct machine *machine) 114 { 115 return dump_raw_samples(tool, event, sample, machine); 116 } 117 118 static int report_raw_events(struct perf_mem *mem) 119 { 120 struct perf_data_file file = { 121 .path = input_name, 122 .mode = PERF_DATA_MODE_READ, 123 }; 124 int err = -EINVAL; 125 int ret; 126 struct perf_session *session = perf_session__new(&file, false, 127 &mem->tool); 128 129 if (session == NULL) 130 return -1; 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(&session->header.env) < 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++] = "report"; 169 rep_argv[i++] = "--mem-mode"; 170 rep_argv[i++] = "-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 (!(mem->operation & MEM_OPERATION_LOAD)) 177 rep_argv[i++] = "--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 struct mem_mode { 189 const char *name; 190 int mode; 191 }; 192 193 #define MEM_OPT(n, m) \ 194 { .name = n, .mode = (m) } 195 196 #define MEM_END { .name = NULL } 197 198 static const struct mem_mode mem_modes[]={ 199 MEM_OPT("load", MEM_OPERATION_LOAD), 200 MEM_OPT("store", MEM_OPERATION_STORE), 201 MEM_END 202 }; 203 204 static int 205 parse_mem_ops(const struct option *opt, const char *str, int unset) 206 { 207 int *mode = (int *)opt->value; 208 const struct mem_mode *m; 209 char *s, *os = NULL, *p; 210 int ret = -1; 211 212 if (unset) 213 return 0; 214 215 /* str may be NULL in case no arg is passed to -t */ 216 if (str) { 217 /* because str is read-only */ 218 s = os = strdup(str); 219 if (!s) 220 return -1; 221 222 /* reset mode */ 223 *mode = 0; 224 225 for (;;) { 226 p = strchr(s, ','); 227 if (p) 228 *p = '\0'; 229 230 for (m = mem_modes; m->name; m++) { 231 if (!strcasecmp(s, m->name)) 232 break; 233 } 234 if (!m->name) { 235 fprintf(stderr, "unknown sampling op %s," 236 " check man page\n", s); 237 goto error; 238 } 239 240 *mode |= m->mode; 241 242 if (!p) 243 break; 244 245 s = p + 1; 246 } 247 } 248 ret = 0; 249 250 if (*mode == 0) 251 *mode = MEM_OPERATION_LOAD; 252 error: 253 free(os); 254 return ret; 255 } 256 257 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) 258 { 259 struct stat st; 260 struct perf_mem mem = { 261 .tool = { 262 .sample = process_sample_event, 263 .mmap = perf_event__process_mmap, 264 .mmap2 = perf_event__process_mmap2, 265 .comm = perf_event__process_comm, 266 .lost = perf_event__process_lost, 267 .fork = perf_event__process_fork, 268 .build_id = perf_event__process_build_id, 269 .ordered_events = true, 270 }, 271 .input_name = "perf.data", 272 /* 273 * default to both load an store sampling 274 */ 275 .operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE, 276 }; 277 const struct option mem_options[] = { 278 OPT_CALLBACK('t', "type", &mem.operation, 279 "type", "memory operations(load,store) Default load,store", 280 parse_mem_ops), 281 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw, 282 "dump raw samples in ASCII"), 283 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved, 284 "Only display entries resolved to a symbol"), 285 OPT_STRING('i', "input", &input_name, "file", 286 "input file name"), 287 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu", 288 "list of cpus to profile"), 289 OPT_STRING('x', "field-separator", &symbol_conf.field_sep, 290 "separator", 291 "separator for columns, no spaces will be added" 292 " between columns '.' is reserved."), 293 OPT_END() 294 }; 295 const char *const mem_subcommands[] = { "record", "report", NULL }; 296 const char *mem_usage[] = { 297 NULL, 298 NULL 299 }; 300 301 302 argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands, 303 mem_usage, PARSE_OPT_STOP_AT_NON_OPTION); 304 305 if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation)) 306 usage_with_options(mem_usage, mem_options); 307 308 if (!mem.input_name || !strlen(mem.input_name)) { 309 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 310 mem.input_name = "-"; 311 else 312 mem.input_name = "perf.data"; 313 } 314 315 if (!strncmp(argv[0], "rec", 3)) 316 return __cmd_record(argc, argv, &mem); 317 else if (!strncmp(argv[0], "rep", 3)) 318 return report_events(argc, argv, &mem); 319 else 320 usage_with_options(mem_usage, mem_options); 321 322 return 0; 323 } 324