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 ret; 128 struct perf_session *session = perf_session__new(&file, false, 129 &mem->tool); 130 131 if (session == NULL) 132 return -1; 133 134 if (mem->cpu_list) { 135 ret = perf_session__cpu_bitmap(session, mem->cpu_list, 136 mem->cpu_bitmap); 137 if (ret < 0) 138 goto out_delete; 139 } 140 141 ret = symbol__init(&session->header.env); 142 if (ret < 0) 143 goto out_delete; 144 145 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); 146 147 ret = perf_session__process_events(session); 148 149 out_delete: 150 perf_session__delete(session); 151 return ret; 152 } 153 154 static int report_events(int argc, const char **argv, struct perf_mem *mem) 155 { 156 const char **rep_argv; 157 int ret, i = 0, j, rep_argc; 158 159 if (mem->dump_raw) 160 return report_raw_events(mem); 161 162 rep_argc = argc + 3; 163 rep_argv = calloc(rep_argc + 1, sizeof(char *)); 164 if (!rep_argv) 165 return -1; 166 167 rep_argv[i++] = "report"; 168 rep_argv[i++] = "--mem-mode"; 169 rep_argv[i++] = "-n"; /* display number of samples */ 170 171 /* 172 * there is no weight (cost) associated with stores, so don't print 173 * the column 174 */ 175 if (!(mem->operation & MEM_OPERATION_LOAD)) 176 rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr," 177 "dso_daddr,tlb,locked"; 178 179 for (j = 1; j < argc; j++, i++) 180 rep_argv[i] = argv[j]; 181 182 ret = cmd_report(i, rep_argv, NULL); 183 free(rep_argv); 184 return ret; 185 } 186 187 struct mem_mode { 188 const char *name; 189 int mode; 190 }; 191 192 #define MEM_OPT(n, m) \ 193 { .name = n, .mode = (m) } 194 195 #define MEM_END { .name = NULL } 196 197 static const struct mem_mode mem_modes[]={ 198 MEM_OPT("load", MEM_OPERATION_LOAD), 199 MEM_OPT("store", MEM_OPERATION_STORE), 200 MEM_END 201 }; 202 203 static int 204 parse_mem_ops(const struct option *opt, const char *str, int unset) 205 { 206 int *mode = (int *)opt->value; 207 const struct mem_mode *m; 208 char *s, *os = NULL, *p; 209 int ret = -1; 210 211 if (unset) 212 return 0; 213 214 /* str may be NULL in case no arg is passed to -t */ 215 if (str) { 216 /* because str is read-only */ 217 s = os = strdup(str); 218 if (!s) 219 return -1; 220 221 /* reset mode */ 222 *mode = 0; 223 224 for (;;) { 225 p = strchr(s, ','); 226 if (p) 227 *p = '\0'; 228 229 for (m = mem_modes; m->name; m++) { 230 if (!strcasecmp(s, m->name)) 231 break; 232 } 233 if (!m->name) { 234 fprintf(stderr, "unknown sampling op %s," 235 " check man page\n", s); 236 goto error; 237 } 238 239 *mode |= m->mode; 240 241 if (!p) 242 break; 243 244 s = p + 1; 245 } 246 } 247 ret = 0; 248 249 if (*mode == 0) 250 *mode = MEM_OPERATION_LOAD; 251 error: 252 free(os); 253 return ret; 254 } 255 256 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) 257 { 258 struct stat st; 259 struct perf_mem mem = { 260 .tool = { 261 .sample = process_sample_event, 262 .mmap = perf_event__process_mmap, 263 .mmap2 = perf_event__process_mmap2, 264 .comm = perf_event__process_comm, 265 .lost = perf_event__process_lost, 266 .fork = perf_event__process_fork, 267 .build_id = perf_event__process_build_id, 268 .ordered_events = true, 269 }, 270 .input_name = "perf.data", 271 /* 272 * default to both load an store sampling 273 */ 274 .operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE, 275 }; 276 const struct option mem_options[] = { 277 OPT_CALLBACK('t', "type", &mem.operation, 278 "type", "memory operations(load,store) Default load,store", 279 parse_mem_ops), 280 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw, 281 "dump raw samples in ASCII"), 282 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved, 283 "Only display entries resolved to a symbol"), 284 OPT_STRING('i', "input", &input_name, "file", 285 "input file name"), 286 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu", 287 "list of cpus to profile"), 288 OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep, 289 "separator", 290 "separator for columns, no spaces will be added" 291 " between columns '.' is reserved."), 292 OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"), 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