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 bool force; 19 int operation; 20 const char *cpu_list; 21 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 22 }; 23 24 static int __cmd_record(int argc, const char **argv, struct perf_mem *mem) 25 { 26 int rec_argc, i = 0, j; 27 const char **rec_argv; 28 int ret; 29 30 rec_argc = argc + 7; /* max number of arguments */ 31 rec_argv = calloc(rec_argc + 1, sizeof(char *)); 32 if (!rec_argv) 33 return -1; 34 35 rec_argv[i++] = "record"; 36 37 if (mem->operation & MEM_OPERATION_LOAD) 38 rec_argv[i++] = "-W"; 39 40 rec_argv[i++] = "-d"; 41 42 if (mem->operation & MEM_OPERATION_LOAD) { 43 rec_argv[i++] = "-e"; 44 rec_argv[i++] = "cpu/mem-loads/pp"; 45 } 46 47 if (mem->operation & MEM_OPERATION_STORE) { 48 rec_argv[i++] = "-e"; 49 rec_argv[i++] = "cpu/mem-stores/pp"; 50 } 51 52 for (j = 1; j < argc; j++, i++) 53 rec_argv[i] = argv[j]; 54 55 ret = cmd_record(i, rec_argv, NULL); 56 free(rec_argv); 57 return ret; 58 } 59 60 static int 61 dump_raw_samples(struct perf_tool *tool, 62 union perf_event *event, 63 struct perf_sample *sample, 64 struct machine *machine) 65 { 66 struct perf_mem *mem = container_of(tool, struct perf_mem, tool); 67 struct addr_location al; 68 const char *fmt; 69 70 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 71 fprintf(stderr, "problem processing %d event, skipping it.\n", 72 event->header.type); 73 return -1; 74 } 75 76 if (al.filtered || (mem->hide_unresolved && al.sym == NULL)) 77 goto out_put; 78 79 if (al.map != NULL) 80 al.map->dso->hit = 1; 81 82 if (symbol_conf.field_sep) { 83 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64 84 "%s0x%"PRIx64"%s%s:%s\n"; 85 } else { 86 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64 87 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n"; 88 symbol_conf.field_sep = " "; 89 } 90 91 printf(fmt, 92 sample->pid, 93 symbol_conf.field_sep, 94 sample->tid, 95 symbol_conf.field_sep, 96 sample->ip, 97 symbol_conf.field_sep, 98 sample->addr, 99 symbol_conf.field_sep, 100 sample->weight, 101 symbol_conf.field_sep, 102 sample->data_src, 103 symbol_conf.field_sep, 104 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???", 105 al.sym ? al.sym->name : "???"); 106 out_put: 107 addr_location__put(&al); 108 return 0; 109 } 110 111 static int process_sample_event(struct perf_tool *tool, 112 union perf_event *event, 113 struct perf_sample *sample, 114 struct perf_evsel *evsel __maybe_unused, 115 struct machine *machine) 116 { 117 return dump_raw_samples(tool, event, sample, machine); 118 } 119 120 static int report_raw_events(struct perf_mem *mem) 121 { 122 struct perf_data_file file = { 123 .path = input_name, 124 .mode = PERF_DATA_MODE_READ, 125 .force = mem->force, 126 }; 127 int err = -EINVAL; 128 int ret; 129 struct perf_session *session = perf_session__new(&file, false, 130 &mem->tool); 131 132 if (session == NULL) 133 return -1; 134 135 if (mem->cpu_list) { 136 ret = perf_session__cpu_bitmap(session, mem->cpu_list, 137 mem->cpu_bitmap); 138 if (ret) 139 goto out_delete; 140 } 141 142 if (symbol__init(&session->header.env) < 0) 143 return -1; 144 145 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); 146 147 err = perf_session__process_events(session); 148 if (err) 149 return err; 150 151 return 0; 152 153 out_delete: 154 perf_session__delete(session); 155 return err; 156 } 157 158 static int report_events(int argc, const char **argv, struct perf_mem *mem) 159 { 160 const char **rep_argv; 161 int ret, i = 0, j, rep_argc; 162 163 if (mem->dump_raw) 164 return report_raw_events(mem); 165 166 rep_argc = argc + 3; 167 rep_argv = calloc(rep_argc + 1, sizeof(char *)); 168 if (!rep_argv) 169 return -1; 170 171 rep_argv[i++] = "report"; 172 rep_argv[i++] = "--mem-mode"; 173 rep_argv[i++] = "-n"; /* display number of samples */ 174 175 /* 176 * there is no weight (cost) associated with stores, so don't print 177 * the column 178 */ 179 if (!(mem->operation & MEM_OPERATION_LOAD)) 180 rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr," 181 "dso_daddr,tlb,locked"; 182 183 for (j = 1; j < argc; j++, i++) 184 rep_argv[i] = argv[j]; 185 186 ret = cmd_report(i, rep_argv, NULL); 187 free(rep_argv); 188 return ret; 189 } 190 191 struct mem_mode { 192 const char *name; 193 int mode; 194 }; 195 196 #define MEM_OPT(n, m) \ 197 { .name = n, .mode = (m) } 198 199 #define MEM_END { .name = NULL } 200 201 static const struct mem_mode mem_modes[]={ 202 MEM_OPT("load", MEM_OPERATION_LOAD), 203 MEM_OPT("store", MEM_OPERATION_STORE), 204 MEM_END 205 }; 206 207 static int 208 parse_mem_ops(const struct option *opt, const char *str, int unset) 209 { 210 int *mode = (int *)opt->value; 211 const struct mem_mode *m; 212 char *s, *os = NULL, *p; 213 int ret = -1; 214 215 if (unset) 216 return 0; 217 218 /* str may be NULL in case no arg is passed to -t */ 219 if (str) { 220 /* because str is read-only */ 221 s = os = strdup(str); 222 if (!s) 223 return -1; 224 225 /* reset mode */ 226 *mode = 0; 227 228 for (;;) { 229 p = strchr(s, ','); 230 if (p) 231 *p = '\0'; 232 233 for (m = mem_modes; m->name; m++) { 234 if (!strcasecmp(s, m->name)) 235 break; 236 } 237 if (!m->name) { 238 fprintf(stderr, "unknown sampling op %s," 239 " check man page\n", s); 240 goto error; 241 } 242 243 *mode |= m->mode; 244 245 if (!p) 246 break; 247 248 s = p + 1; 249 } 250 } 251 ret = 0; 252 253 if (*mode == 0) 254 *mode = MEM_OPERATION_LOAD; 255 error: 256 free(os); 257 return ret; 258 } 259 260 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) 261 { 262 struct stat st; 263 struct perf_mem mem = { 264 .tool = { 265 .sample = process_sample_event, 266 .mmap = perf_event__process_mmap, 267 .mmap2 = perf_event__process_mmap2, 268 .comm = perf_event__process_comm, 269 .lost = perf_event__process_lost, 270 .fork = perf_event__process_fork, 271 .build_id = perf_event__process_build_id, 272 .ordered_events = true, 273 }, 274 .input_name = "perf.data", 275 /* 276 * default to both load an store sampling 277 */ 278 .operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE, 279 }; 280 const struct option mem_options[] = { 281 OPT_CALLBACK('t', "type", &mem.operation, 282 "type", "memory operations(load,store) Default load,store", 283 parse_mem_ops), 284 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw, 285 "dump raw samples in ASCII"), 286 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved, 287 "Only display entries resolved to a symbol"), 288 OPT_STRING('i', "input", &input_name, "file", 289 "input file name"), 290 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu", 291 "list of cpus to profile"), 292 OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep, 293 "separator", 294 "separator for columns, no spaces will be added" 295 " between columns '.' is reserved."), 296 OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"), 297 OPT_END() 298 }; 299 const char *const mem_subcommands[] = { "record", "report", NULL }; 300 const char *mem_usage[] = { 301 NULL, 302 NULL 303 }; 304 305 306 argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands, 307 mem_usage, PARSE_OPT_STOP_AT_NON_OPTION); 308 309 if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation)) 310 usage_with_options(mem_usage, mem_options); 311 312 if (!mem.input_name || !strlen(mem.input_name)) { 313 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 314 mem.input_name = "-"; 315 else 316 mem.input_name = "perf.data"; 317 } 318 319 if (!strncmp(argv[0], "rec", 3)) 320 return __cmd_record(argc, argv, &mem); 321 else if (!strncmp(argv[0], "rep", 3)) 322 return report_events(argc, argv, &mem); 323 else 324 usage_with_options(mem_usage, mem_options); 325 326 return 0; 327 } 328