| | 1 | /* |
| | 2 | * Copyright (C) 2013 Julien Desfossez |
| | 3 | * |
| | 4 | * This program is free software; you can redistribute it and/or modify |
| | 5 | * it under the terms of the GNU General Public License Version 2 as |
| | 6 | * published by the Free Software Foundation; |
| | 7 | * |
| | 8 | * This program is distributed in the hope that it will be useful, |
| | 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 11 | * GNU General Public License for more details. |
| | 12 | * |
| | 13 | * You should have received a copy of the GNU General Public License along |
| | 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| | 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| | 16 | */ |
| | 17 | |
| | 18 | #define _GNU_SOURCE |
| | 19 | #include <config.h> |
| | 20 | #include <stdio.h> |
| | 21 | #include <stdint.h> |
| | 22 | #include <babeltrace/babeltrace.h> |
| | 23 | #include <babeltrace/ctf/events.h> |
| | 24 | #include <babeltrace/ctf/callbacks.h> |
| | 25 | #include <babeltrace/ctf/iterator.h> |
| | 26 | #include <fcntl.h> |
| | 27 | #include <pthread.h> |
| | 28 | #include <popt.h> |
| | 29 | #include <stdlib.h> |
| | 30 | #include <ftw.h> |
| | 31 | #include <dirent.h> |
| | 32 | #include <ctype.h> |
| | 33 | #include <sys/stat.h> |
| | 34 | #include <unistd.h> |
| | 35 | #include <string.h> |
| | 36 | #include <errno.h> |
| | 37 | #include <sys/types.h> |
| | 38 | #include <fts.h> |
| | 39 | #include <assert.h> |
| | 40 | #include <sys/mman.h> |
| | 41 | #include <sys/wait.h> |
| | 42 | #include <lttng/lttng.h> |
| | 43 | #ifdef LTTNGTOP_MMAP_LIVE |
| | 44 | #include <lttng/lttngtop-helper.h> |
| | 45 | #include <babeltrace/lttngtopmmappacketseek.h> |
| | 46 | #include "mmap-live.h" |
| | 47 | #endif /* LTTNGTOP_MMAP_LIVE */ |
| | 48 | |
| | 49 | #include "lttngtoptypes.h" |
| | 50 | #include "cputop.h" |
| | 51 | #include "iostreamtop.h" |
| | 52 | #include "cursesdisplay.h" |
| | 53 | #include "common.h" |
| | 54 | #include "network-live.h" |
| | 55 | |
| | 56 | #define NET_URL_PREFIX "net://" |
| | 57 | #define NET4_URL_PREFIX "net4://" |
| | 58 | #define NET6_URL_PREFIX "net6://" |
| | 59 | |
| | 60 | #define DEFAULT_FILE_ARRAY_SIZE 1 |
| | 61 | |
| | 62 | const char *opt_input_path; |
| | 63 | int opt_textdump; |
| | 64 | int opt_child; |
| | 65 | int opt_begin; |
| | 66 | int opt_all; |
| | 67 | |
| | 68 | int quit = 0; |
| | 69 | /* We need at least one valid trace to start processing. */ |
| | 70 | int valid_trace = 0; |
| | 71 | |
| | 72 | struct lttngtop *copy; |
| | 73 | pthread_t display_thread; |
| | 74 | pthread_t timer_thread; |
| | 75 | |
| | 76 | unsigned long refresh_display = 1 * NSEC_PER_SEC; |
| | 77 | unsigned long last_display_update = 0; |
| | 78 | unsigned long last_event_ts = 0; |
| | 79 | struct syscall *last_syscall; |
| | 80 | |
| | 81 | /* list of FDs available for being read with snapshots */ |
| | 82 | struct bt_mmap_stream_list mmap_list; |
| | 83 | GPtrArray *lttng_consumer_stream_array; |
| | 84 | int sessiond_metadata, consumerd_metadata; |
| | 85 | struct lttng_consumer_local_data *ctx = NULL; |
| | 86 | /* list of snapshots currently not consumed */ |
| | 87 | GPtrArray *available_snapshots; |
| | 88 | sem_t metadata_available; |
| | 89 | int reload_trace = 0; |
| | 90 | |
| | 91 | uint64_t prev_ts = 0; |
| | 92 | |
| | 93 | enum { |
| | 94 | OPT_NONE = 0, |
| | 95 | OPT_HELP, |
| | 96 | OPT_TEXTDUMP, |
| | 97 | OPT_PID, |
| | 98 | OPT_CHILD, |
| | 99 | OPT_HOSTNAME, |
| | 100 | OPT_RELAY_HOSTNAME, |
| | 101 | OPT_KPROBES, |
| | 102 | OPT_BEGIN, |
| | 103 | OPT_ALL, |
| | 104 | OPT_OUTPUT_FILE, |
| | 105 | OPT_VERBOSE, |
| | 106 | }; |
| | 107 | |
| | 108 | static struct poptOption long_options[] = { |
| | 109 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ |
| | 110 | { "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL }, |
| | 111 | { "textdump", 't', POPT_ARG_NONE, NULL, OPT_TEXTDUMP, NULL, NULL }, |
| | 112 | { "child", 'f', POPT_ARG_NONE, NULL, OPT_CHILD, NULL, NULL }, |
| | 113 | { "begin", 'b', POPT_ARG_NONE, NULL, OPT_BEGIN, NULL, NULL }, |
| | 114 | { "pid", 'p', POPT_ARG_STRING, &opt_tid, OPT_PID, NULL, NULL }, |
| | 115 | { "hostname", 'n', POPT_ARG_STRING, &opt_hostname, OPT_HOSTNAME, NULL, NULL }, |
| | 116 | { "relay-hostname", 'r', POPT_ARG_STRING, &opt_relay_hostname, |
| | 117 | OPT_RELAY_HOSTNAME, NULL, NULL }, |
| | 118 | { "kprobes", 'k', POPT_ARG_STRING, &opt_kprobes, OPT_KPROBES, NULL, NULL }, |
| | 119 | { "all", 'a', POPT_ARG_NONE, NULL, OPT_ALL, NULL, NULL }, |
| | 120 | { "output", 'o', POPT_ARG_STRING, &opt_output, OPT_OUTPUT_FILE, NULL, NULL }, |
| | 121 | { "verbose", 'v', POPT_ARG_NONE, NULL, OPT_VERBOSE, NULL, NULL }, |
| | 122 | { NULL, 0, 0, NULL, 0, NULL, NULL }, |
| | 123 | }; |
| | 124 | |
| | 125 | #ifdef LTTNGTOP_MMAP_LIVE |
| | 126 | static void handle_textdump_sigterm(int signal) |
| | 127 | { |
| | 128 | quit = 1; |
| | 129 | lttng_destroy_session("test"); |
| | 130 | } |
| | 131 | #endif |
| | 132 | |
| | 133 | void *refresh_thread(void *p) |
| | 134 | { |
| | 135 | while (1) { |
| | 136 | if (quit) { |
| | 137 | sem_post(&pause_sem); |
| | 138 | sem_post(&timer); |
| | 139 | sem_post(&end_trace_sem); |
| | 140 | sem_post(&goodtodisplay); |
| | 141 | sem_post(&goodtoupdate); |
| | 142 | pthread_exit(0); |
| | 143 | } |
| | 144 | if (!opt_input_path) { |
| | 145 | #ifdef LTTNGTOP_MMAP_LIVE |
| | 146 | mmap_live_flush(mmap_list); |
| | 147 | #endif |
| | 148 | } |
| | 149 | sem_wait(&pause_sem); |
| | 150 | sem_post(&pause_sem); |
| | 151 | sem_post(&timer); |
| | 152 | sleep(refresh_display/NSEC_PER_SEC); |
| | 153 | } |
| | 154 | } |
| | 155 | |
| | 156 | void *ncurses_display(void *p) |
| | 157 | { |
| | 158 | unsigned int current_display_index = 0; |
| | 159 | |
| | 160 | sem_wait(&bootstrap); |
| | 161 | /* |
| | 162 | * Prevent the 1 second delay when we hit ESC |
| | 163 | */ |
| | 164 | ESCDELAY = 0; |
| | 165 | init_ncurses(); |
| | 166 | |
| | 167 | while (1) { |
| | 168 | sem_wait(&timer); |
| | 169 | sem_wait(&goodtodisplay); |
| | 170 | sem_wait(&pause_sem); |
| | 171 | |
| | 172 | if (quit) { |
| | 173 | sem_post(&pause_sem); |
| | 174 | sem_post(&timer); |
| | 175 | reset_ncurses(); |
| | 176 | pthread_exit(0); |
| | 177 | } |
| | 178 | |
| | 179 | copy = g_ptr_array_index(copies, current_display_index); |
| | 180 | assert(copy); |
| | 181 | display(current_display_index++); |
| | 182 | |
| | 183 | sem_post(&goodtoupdate); |
| | 184 | sem_post(&pause_sem); |
| | 185 | } |
| | 186 | } |
| | 187 | |
| | 188 | void print_fields(struct bt_ctf_event *event, const char *procname, |
| | 189 | int pid) |
| | 190 | { |
| | 191 | unsigned int cnt, i; |
| | 192 | const struct bt_definition *const * list; |
| | 193 | const struct bt_declaration *l; |
| | 194 | const struct bt_definition *scope; |
| | 195 | enum ctf_type_id type; |
| | 196 | const char *str; |
| | 197 | struct processtop *current_proc; |
| | 198 | struct files *current_file; |
| | 199 | int fd, fd_value = -1; |
| | 200 | |
| | 201 | scope = bt_ctf_get_top_level_scope(event, BT_EVENT_FIELDS); |
| | 202 | |
| | 203 | bt_ctf_get_field_list(event, scope, &list, &cnt); |
| | 204 | for (i = 0; i < cnt; i++) { |
| | 205 | if (i != 0) |
| | 206 | fprintf(output, ", "); |
| | 207 | fprintf(output, "%s = ", bt_ctf_field_name(list[i])); |
| | 208 | l = bt_ctf_get_decl_from_def(list[i]); |
| | 209 | if (strncmp(bt_ctf_field_name(list[i]), "fd", 2) == 0) |
| | 210 | fd = 1; |
| | 211 | else |
| | 212 | fd = 0; |
| | 213 | type = bt_ctf_field_type(l); |
| | 214 | if (type == CTF_TYPE_INTEGER) { |
| | 215 | if (bt_ctf_get_int_signedness(l) == 0) { |
| | 216 | fd_value = bt_ctf_get_uint64(list[i]); |
| | 217 | fprintf(output, "%" PRIu64, bt_ctf_get_uint64(list[i])); |
| | 218 | } else { |
| | 219 | fd_value = bt_ctf_get_int64(list[i]); |
| | 220 | fprintf(output, "%" PRId64, bt_ctf_get_int64(list[i])); |
| | 221 | } |
| | 222 | } else if (type == CTF_TYPE_STRING) { |
| | 223 | fprintf(output, "%s", bt_ctf_get_string(list[i])); |
| | 224 | } else if (type == CTF_TYPE_ARRAY) { |
| | 225 | str = bt_ctf_get_char_array(list[i]); |
| | 226 | if (!bt_ctf_field_get_error() && str) |
| | 227 | fprintf(output, "%s", str); |
| | 228 | } |
| | 229 | if (fd) { |
| | 230 | current_proc = find_process_tid(<tngtop, pid, procname); |
| | 231 | if (!current_proc) |
| | 232 | continue; |
| | 233 | current_file = get_file(current_proc, fd_value); |
| | 234 | if (!current_file || !current_file->name) |
| | 235 | continue; |
| | 236 | fprintf(output, "<%s>", current_file->name); |
| | 237 | } |
| | 238 | } |
| | 239 | } |
| | 240 | |
| | 241 | /* |
| | 242 | * hook on each event to check the timestamp and refresh the display if |
| | 243 | * necessary |
| | 244 | */ |
| | 245 | enum bt_cb_ret textdump(struct bt_ctf_event *call_data, void *private_data) |
| | 246 | { |
| | 247 | unsigned long timestamp; |
| | 248 | uint64_t delta; |
| | 249 | struct tm start; |
| | 250 | uint64_t ts_nsec_start; |
| | 251 | int pid, cpu_id, tid, ret, lookup, current_syscall = 0; |
| | 252 | const struct bt_definition *scope; |
| | 253 | const char *hostname, *procname; |
| | 254 | struct cputime *cpu; |
| | 255 | char *from_syscall = NULL; |
| | 256 | |
| | 257 | timestamp = bt_ctf_get_timestamp(call_data); |
| | 258 | |
| | 259 | /* can happen in network live when tracing is idle */ |
| | 260 | if (timestamp < last_event_ts) |
| | 261 | goto end_stop; |
| | 262 | |
| | 263 | last_event_ts = timestamp; |
| | 264 | |
| | 265 | start = format_timestamp(timestamp); |
| | 266 | ts_nsec_start = timestamp % NSEC_PER_SEC; |
| | 267 | |
| | 268 | pid = get_context_pid(call_data); |
| | 269 | if (pid == -1ULL && opt_tid) { |
| | 270 | goto error; |
| | 271 | } |
| | 272 | |
| | 273 | tid = get_context_tid(call_data); |
| | 274 | |
| | 275 | hostname = get_context_hostname(call_data); |
| | 276 | if (opt_child) |
| | 277 | lookup = pid; |
| | 278 | else |
| | 279 | lookup = tid; |
| | 280 | if (opt_tid || opt_hostname || opt_exec_name) { |
| | 281 | if (!lookup_filter_tid_list(lookup)) { |
| | 282 | /* To display when a process of ours in getting scheduled in */ |
| | 283 | if (strcmp(bt_ctf_event_name(call_data), "sched_switch") == 0) { |
| | 284 | int next_tid; |
| | 285 | |
| | 286 | scope = bt_ctf_get_top_level_scope(call_data, |
| | 287 | BT_EVENT_FIELDS); |
| | 288 | next_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data, |
| | 289 | scope, "_next_tid")); |
| | 290 | if (bt_ctf_field_get_error()) { |
| | 291 | fprintf(stderr, "Missing next_tid field\n"); |
| | 292 | goto error; |
| | 293 | } |
| | 294 | if (!lookup_filter_tid_list(next_tid)) { |
| | 295 | if (!opt_all) |
| | 296 | goto end; |
| | 297 | } else { |
| | 298 | if (opt_all) |
| | 299 | fprintf(output, "%c[1m", 27); |
| | 300 | } |
| | 301 | } else if (!opt_all) { |
| | 302 | goto end; |
| | 303 | } |
| | 304 | } else { |
| | 305 | if (opt_all) |
| | 306 | fprintf(output, "%c[1m", 27); |
| | 307 | } |
| | 308 | } |
| | 309 | |
| | 310 | if (last_syscall && (strncmp(bt_ctf_event_name(call_data), |
| | 311 | "exit_syscall", 12)) != 0) { |
| | 312 | last_syscall = NULL; |
| | 313 | fprintf(output, " ...interrupted...\n"); |
| | 314 | } |
| | 315 | |
| | 316 | cpu_id = get_cpu_id(call_data); |
| | 317 | procname = get_context_comm(call_data); |
| | 318 | if (strncmp(bt_ctf_event_name(call_data), "sys_", 4) == 0) { |
| | 319 | cpu = get_cpu(cpu_id); |
| | 320 | cpu->current_syscall = g_new0(struct syscall, 1); |
| | 321 | cpu->current_syscall->name = strdup(bt_ctf_event_name(call_data)); |
| | 322 | cpu->current_syscall->ts_start = timestamp; |
| | 323 | cpu->current_syscall->cpu_id = cpu_id; |
| | 324 | last_syscall = cpu->current_syscall; |
| | 325 | current_syscall = 1; |
| | 326 | } else if ((strncmp(bt_ctf_event_name(call_data), "exit_syscall", 12)) == 0) { |
| | 327 | struct tm start_ts; |
| | 328 | |
| | 329 | /* Return code of a syscall if it was the last displayed event. */ |
| | 330 | if (last_syscall && last_syscall->ts_start == prev_ts) { |
| | 331 | if (last_syscall->cpu_id == cpu_id) { |
| | 332 | int64_t syscall_ret; |
| | 333 | |
| | 334 | delta = timestamp - last_syscall->ts_start; |
| | 335 | scope = bt_ctf_get_top_level_scope(call_data, |
| | 336 | BT_EVENT_FIELDS); |
| | 337 | syscall_ret = bt_ctf_get_int64(bt_ctf_get_field(call_data, |
| | 338 | scope, "_ret")); |
| | 339 | |
| | 340 | fprintf(output, "= %" PRId64 " (%" PRIu64 ".%09" PRIu64 "s)\n", |
| | 341 | syscall_ret, delta / NSEC_PER_SEC, |
| | 342 | delta % NSEC_PER_SEC); |
| | 343 | last_syscall = NULL; |
| | 344 | goto end; |
| | 345 | } else { |
| | 346 | last_syscall = NULL; |
| | 347 | fprintf(output, " ...interrupted...\n"); |
| | 348 | } |
| | 349 | } |
| | 350 | |
| | 351 | cpu = get_cpu(cpu_id); |
| | 352 | if (cpu->current_syscall) { |
| | 353 | delta = timestamp - cpu->current_syscall->ts_start; |
| | 354 | start_ts = format_timestamp(cpu->current_syscall->ts_start); |
| | 355 | ret = asprintf(&from_syscall, " [from %02d:%02d:%02d.%09" PRIu64 |
| | 356 | " (+%" PRIu64 ".%09" PRIu64 ") (cpu %d) %s]", |
| | 357 | start_ts.tm_hour, start_ts.tm_min, start_ts.tm_sec, |
| | 358 | cpu->current_syscall->ts_start % NSEC_PER_SEC, |
| | 359 | delta / NSEC_PER_SEC, delta % NSEC_PER_SEC, |
| | 360 | cpu_id, cpu->current_syscall->name); |
| | 361 | if (ret < 0) { |
| | 362 | goto error; |
| | 363 | } |
| | 364 | free(cpu->current_syscall->name); |
| | 365 | g_free(cpu->current_syscall); |
| | 366 | cpu->current_syscall = NULL; |
| | 367 | last_syscall = NULL; |
| | 368 | } |
| | 369 | } |
| | 370 | |
| | 371 | if (prev_ts == 0) |
| | 372 | prev_ts = timestamp; |
| | 373 | delta = timestamp - prev_ts; |
| | 374 | prev_ts = timestamp; |
| | 375 | |
| | 376 | fprintf(output, "%02d:%02d:%02d.%09" PRIu64 " (+%" PRIu64 ".%09" PRIu64 ") %s%s" |
| | 377 | "(cpu %d) [%s (%d/%d)] %s (", |
| | 378 | start.tm_hour, start.tm_min, start.tm_sec, |
| | 379 | ts_nsec_start, delta / NSEC_PER_SEC, |
| | 380 | delta % NSEC_PER_SEC, (hostname) ? hostname : "", |
| | 381 | (hostname) ? " ": "", cpu_id, procname, pid, tid, |
| | 382 | bt_ctf_event_name(call_data)); |
| | 383 | print_fields(call_data, procname, pid); |
| | 384 | fprintf(output, ")%s%c", (from_syscall) ? from_syscall : "", |
| | 385 | (!current_syscall) ? '\n' : ' '); |
| | 386 | |
| | 387 | free(from_syscall); |
| | 388 | if (opt_all && (opt_tid || opt_hostname || opt_exec_name)) |
| | 389 | fprintf(output, "%c[0m", 27); |
| | 390 | |
| | 391 | end: |
| | 392 | return BT_CB_OK; |
| | 393 | error: |
| | 394 | return BT_CB_ERROR_STOP; |
| | 395 | end_stop: |
| | 396 | return BT_CB_OK_STOP; |
| | 397 | } |
| | 398 | |
| | 399 | enum bt_cb_ret handle_kprobes(struct bt_ctf_event *call_data, void *private_data) |
| | 400 | { |
| | 401 | int i; |
| | 402 | struct kprobes *kprobe; |
| | 403 | |
| | 404 | /* for kprobes */ |
| | 405 | for (i = 0; i < lttngtop.kprobes_table->len; i++) { |
| | 406 | kprobe = g_ptr_array_index(lttngtop.kprobes_table, i); |
| | 407 | if (strcmp(bt_ctf_event_name(call_data), kprobe->probe_name) == 0) { |
| | 408 | kprobe->count++; |
| | 409 | } |
| | 410 | } |
| | 411 | |
| | 412 | return BT_CB_OK; |
| | 413 | } |
| | 414 | |
| | 415 | /* |
| | 416 | * hook on each event to check the timestamp and refresh the display if |
| | 417 | * necessary |
| | 418 | */ |
| | 419 | enum bt_cb_ret check_timestamp(struct bt_ctf_event *call_data, void *private_data) |
| | 420 | { |
| | 421 | unsigned long timestamp; |
| | 422 | |
| | 423 | timestamp = bt_ctf_get_timestamp(call_data); |
| | 424 | if (timestamp == -1ULL) |
| | 425 | goto error; |
| | 426 | |
| | 427 | /* can happen in network live when tracing is idle */ |
| | 428 | if (timestamp < last_event_ts) |
| | 429 | goto end_stop; |
| | 430 | |
| | 431 | last_event_ts = timestamp; |
| | 432 | |
| | 433 | if (last_display_update == 0) |
| | 434 | last_display_update = timestamp; |
| | 435 | |
| | 436 | if (timestamp - last_display_update >= refresh_display) { |
| | 437 | sem_wait(&goodtoupdate); |
| | 438 | g_ptr_array_add(copies, get_copy_lttngtop(last_display_update, |
| | 439 | timestamp)); |
| | 440 | sem_post(&goodtodisplay); |
| | 441 | sem_post(&bootstrap); |
| | 442 | last_display_update = timestamp; |
| | 443 | } |
| | 444 | return BT_CB_OK; |
| | 445 | |
| | 446 | error: |
| | 447 | fprintf(stderr, "check_timestamp callback error\n"); |
| | 448 | return BT_CB_ERROR_STOP; |
| | 449 | |
| | 450 | end_stop: |
| | 451 | return BT_CB_OK_STOP; |
| | 452 | } |
| | 453 | |
| | 454 | /* |
| | 455 | * get_perf_counter : get or create and return a perf_counter struct for |
| | 456 | * either a process or a cpu (only one of the 2 parameters mandatory) |
| | 457 | */ |
| | 458 | struct perfcounter *get_perf_counter(const char *name, struct processtop *proc, |
| | 459 | struct cputime *cpu) |
| | 460 | { |
| | 461 | struct perfcounter *ret; |
| | 462 | GHashTable *table; |
| | 463 | |
| | 464 | if (proc) |
| | 465 | table = proc->perf; |
| | 466 | else if (cpu) |
| | 467 | table = cpu->perf; |
| | 468 | else |
| | 469 | goto error; |
| | 470 | |
| | 471 | ret = g_hash_table_lookup(table, (gpointer) name); |
| | 472 | if (ret) |
| | 473 | goto end; |
| | 474 | |
| | 475 | ret = g_new0(struct perfcounter, 1); |
| | 476 | /* by default, make it visible in the UI */ |
| | 477 | ret->visible = 1; |
| | 478 | g_hash_table_insert(table, (gpointer) strdup(name), ret); |
| | 479 | |
| | 480 | end: |
| | 481 | return ret; |
| | 482 | |
| | 483 | error: |
| | 484 | return NULL; |
| | 485 | } |
| | 486 | |
| | 487 | void update_perf_value(struct processtop *proc, struct cputime *cpu, |
| | 488 | const char *name, int value) |
| | 489 | { |
| | 490 | struct perfcounter *cpu_perf, *process_perf; |
| | 491 | |
| | 492 | cpu_perf = get_perf_counter(name, NULL, cpu); |
| | 493 | if (cpu_perf->count < value) { |
| | 494 | process_perf = get_perf_counter(name, proc, NULL); |
| | 495 | process_perf->count += value - cpu_perf->count; |
| | 496 | cpu_perf->count = value; |
| | 497 | } |
| | 498 | } |
| | 499 | |
| | 500 | void extract_perf_counter_scope(const struct bt_ctf_event *event, |
| | 501 | const struct bt_definition *scope, |
| | 502 | struct processtop *proc, |
| | 503 | struct cputime *cpu) |
| | 504 | { |
| | 505 | struct bt_definition const * const *list = NULL; |
| | 506 | const struct bt_definition *field; |
| | 507 | unsigned int count; |
| | 508 | struct perfcounter *perfcounter; |
| | 509 | GHashTableIter iter; |
| | 510 | gpointer key; |
| | 511 | int ret; |
| | 512 | |
| | 513 | if (!scope) |
| | 514 | goto end; |
| | 515 | |
| | 516 | ret = bt_ctf_get_field_list(event, scope, &list, &count); |
| | 517 | if (ret < 0) |
| | 518 | goto end; |
| | 519 | |
| | 520 | if (count == 0) |
| | 521 | goto end; |
| | 522 | |
| | 523 | g_hash_table_iter_init(&iter, global_perf_liszt); |
| | 524 | while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfcounter)) { |
| | 525 | field = bt_ctf_get_field(event, scope, (char *) key); |
| | 526 | if (field) { |
| | 527 | int value = bt_ctf_get_uint64(field); |
| | 528 | if (bt_ctf_field_get_error()) |
| | 529 | continue; |
| | 530 | update_perf_value(proc, cpu, (char *) key, value); |
| | 531 | } |
| | 532 | } |
| | 533 | |
| | 534 | end: |
| | 535 | return; |
| | 536 | } |
| | 537 | |
| | 538 | void update_perf_counter(struct processtop *proc, const struct bt_ctf_event *event) |
| | 539 | { |
| | 540 | struct cputime *cpu; |
| | 541 | const struct bt_definition *scope; |
| | 542 | |
| | 543 | cpu = get_cpu(get_cpu_id(event)); |
| | 544 | |
| | 545 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); |
| | 546 | extract_perf_counter_scope(event, scope, proc, cpu); |
| | 547 | |
| | 548 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT); |
| | 549 | extract_perf_counter_scope(event, scope, proc, cpu); |
| | 550 | |
| | 551 | scope = bt_ctf_get_top_level_scope(event, BT_EVENT_CONTEXT); |
| | 552 | extract_perf_counter_scope(event, scope, proc, cpu); |
| | 553 | } |
| | 554 | |
| | 555 | enum bt_cb_ret fix_process_table(struct bt_ctf_event *call_data, |
| | 556 | void *private_data) |
| | 557 | { |
| | 558 | int pid, tid, ppid, vpid, vtid, vppid; |
| | 559 | char *comm, *hostname; |
| | 560 | struct processtop *parent, *child; |
| | 561 | unsigned long timestamp; |
| | 562 | |
| | 563 | timestamp = bt_ctf_get_timestamp(call_data); |
| | 564 | if (timestamp == -1ULL) |
| | 565 | goto error; |
| | 566 | |
| | 567 | pid = get_context_pid(call_data); |
| | 568 | if (pid == -1ULL) { |
| | 569 | goto error; |
| | 570 | } |
| | 571 | |
| | 572 | tid = get_context_tid(call_data); |
| | 573 | if (tid == -1ULL) { |
| | 574 | goto error; |
| | 575 | } |
| | 576 | ppid = get_context_ppid(call_data); |
| | 577 | if (ppid == -1ULL) { |
| | 578 | goto end; |
| | 579 | } |
| | 580 | vpid = get_context_vpid(call_data); |
| | 581 | if (pid == -1ULL) { |
| | 582 | vpid = -1; |
| | 583 | } |
| | 584 | vtid = get_context_vtid(call_data); |
| | 585 | if (tid == -1ULL) { |
| | 586 | vtid = -1; |
| | 587 | } |
| | 588 | vppid = get_context_vppid(call_data); |
| | 589 | if (ppid == -1ULL) { |
| | 590 | vppid = -1; |
| | 591 | } |
| | 592 | comm = get_context_comm(call_data); |
| | 593 | if (!comm) { |
| | 594 | goto error; |
| | 595 | } |
| | 596 | /* optional */ |
| | 597 | hostname = get_context_hostname(call_data); |
| | 598 | |
| | 599 | /* find or create the current process */ |
| | 600 | child = find_process_tid(<tngtop, tid, comm); |
| | 601 | if (!child) |
| | 602 | child = add_proc(<tngtop, tid, comm, timestamp, hostname); |
| | 603 | if (!child) |
| | 604 | goto end; |
| | 605 | update_proc(child, pid, tid, ppid, vpid, vtid, vppid, comm, hostname); |
| | 606 | |
| | 607 | if (pid != tid) { |
| | 608 | /* find or create the parent */ |
| | 609 | parent = find_process_tid(<tngtop, pid, comm); |
| | 610 | if (!parent) { |
| | 611 | parent = add_proc(<tngtop, pid, comm, timestamp, hostname); |
| | 612 | if (parent) |
| | 613 | parent->pid = pid; |
| | 614 | } |
| | 615 | |
| | 616 | /* attach the parent to the current process */ |
| | 617 | child->threadparent = parent; |
| | 618 | add_thread(parent, child); |
| | 619 | } |
| | 620 | |
| | 621 | update_perf_counter(child, call_data); |
| | 622 | |
| | 623 | end: |
| | 624 | return BT_CB_OK; |
| | 625 | |
| | 626 | error: |
| | 627 | return BT_CB_ERROR_STOP; |
| | 628 | } |
| | 629 | |
| | 630 | void init_lttngtop() |
| | 631 | { |
| | 632 | copies = g_ptr_array_new(); |
| | 633 | global_perf_liszt = g_hash_table_new(g_str_hash, g_str_equal); |
| | 634 | global_filter_list = g_hash_table_new(g_str_hash, g_str_equal); |
| | 635 | global_host_list = g_hash_table_new(g_str_hash, g_str_equal); |
| | 636 | tid_filter_list = g_hash_table_new(g_str_hash, |
| | 637 | g_str_equal); |
| | 638 | |
| | 639 | sem_init(&goodtodisplay, 0, 0); |
| | 640 | sem_init(&goodtoupdate, 0, 1); |
| | 641 | sem_init(&timer, 0, 1); |
| | 642 | sem_init(&bootstrap, 0, 0); |
| | 643 | sem_init(&pause_sem, 0, 1); |
| | 644 | sem_init(&end_trace_sem, 0, 0); |
| | 645 | |
| | 646 | reset_global_counters(); |
| | 647 | lttngtop.nbproc = 0; |
| | 648 | lttngtop.nbthreads = 0; |
| | 649 | lttngtop.nbfiles = 0; |
| | 650 | |
| | 651 | lttngtop.process_hash_table = g_hash_table_new(g_direct_hash, |
| | 652 | g_direct_equal); |
| | 653 | lttngtop.process_table = g_ptr_array_new(); |
| | 654 | lttngtop.files_table = g_ptr_array_new(); |
| | 655 | lttngtop.cpu_table = g_ptr_array_new(); |
| | 656 | |
| | 657 | toggle_filter = -1; |
| | 658 | } |
| | 659 | |
| | 660 | void usage(FILE *fp) |
| | 661 | { |
| | 662 | fprintf(fp, "LTTngTop %s\n\n", VERSION); |
| | 663 | fprintf(fp, "Usage : lttngtop [OPTIONS] TRACE\n"); |
| | 664 | fprintf(fp, " TRACE Path to the trace to analyse (-r for network live tracing, nothing for mmap live streaming)\n"); |
| | 665 | fprintf(fp, " -h, --help This help message\n"); |
| | 666 | fprintf(fp, " -t, --textdump Display live events in text-only\n"); |
| | 667 | fprintf(fp, " -p, --pid Comma-separated list of PIDs to display\n"); |
| | 668 | fprintf(fp, " -f, --child Follow threads associated with selected PIDs\n"); |
| | 669 | fprintf(fp, " -n, --hostname Comma-separated list of hostnames to display (require hostname context in trace)\n"); |
| | 670 | fprintf(fp, " -a, --all In textdump mode, display all events but write in bold the processes we are interested in (-f, -p and -n)\n"); |
| | 671 | fprintf(fp, " -k, --kprobes Comma-separated list of kprobes to insert (same format as lttng enable-event)\n"); |
| | 672 | fprintf(fp, " -r, --relay-hostname Network live streaming : hostname of the lttng-relayd (default port)\n"); |
| | 673 | fprintf(fp, " -b, --begin Network live streaming : read the trace for the beginning of the recording\n"); |
| | 674 | fprintf(fp, " -o, --output <filename> In textdump, output the log in <filename>\n"); |
| | 675 | } |
| | 676 | |
| | 677 | /* |
| | 678 | * Parse probe options. |
| | 679 | * Shamelessly stolen from lttng-tools : |
| | 680 | * src/bin/lttng/commands/enable_events.c |
| | 681 | */ |
| | 682 | static struct kprobes *parse_probe_opts(char *opt) |
| | 683 | { |
| | 684 | char s_hex[19]; |
| | 685 | char name[LTTNG_SYMBOL_NAME_LEN]; |
| | 686 | struct kprobes *kprobe; |
| | 687 | int ret; |
| | 688 | |
| | 689 | /* |
| | 690 | kprobe->probe_addr = 0; |
| | 691 | kprobe->probe_offset = 0; |
| | 692 | asprintf(&kprobe->probe_name, "probe_sys_open"); |
| | 693 | asprintf(&kprobe->symbol_name, "sys_open"); |
| | 694 | */ |
| | 695 | |
| | 696 | if (opt == NULL) { |
| | 697 | kprobe = NULL; |
| | 698 | goto end; |
| | 699 | } |
| | 700 | |
| | 701 | kprobe = g_new0(struct kprobes, 1); |
| | 702 | |
| | 703 | /* Check for symbol+offset */ |
| | 704 | ret = sscanf(opt, "%[^'+']+%s", name, s_hex); |
| | 705 | if (ret == 2) { |
| | 706 | ret = asprintf(&kprobe->probe_name, "probe_%s", name); |
| | 707 | ret = asprintf(&kprobe->symbol_name, "%s", name); |
| | 708 | |
| | 709 | if (strlen(s_hex) == 0) { |
| | 710 | fprintf(stderr, "Invalid probe offset %s", s_hex); |
| | 711 | ret = -1; |
| | 712 | goto end; |
| | 713 | } |
| | 714 | kprobe->probe_offset = strtoul(s_hex, NULL, 0); |
| | 715 | kprobe->probe_addr = 0; |
| | 716 | goto end; |
| | 717 | } |
| | 718 | |
| | 719 | /* Check for symbol */ |
| | 720 | if (isalpha(name[0])) { |
| | 721 | ret = sscanf(opt, "%s", name); |
| | 722 | if (ret == 1) { |
| | 723 | ret = asprintf(&kprobe->probe_name, "probe_%s", name); |
| | 724 | ret = asprintf(&kprobe->symbol_name, "%s", name); |
| | 725 | kprobe->probe_offset = 0; |
| | 726 | kprobe->probe_addr = 0; |
| | 727 | goto end; |
| | 728 | } |
| | 729 | } |
| | 730 | |
| | 731 | /* Check for address */ |
| | 732 | ret = sscanf(opt, "%s", s_hex); |
| | 733 | if (ret > 0) { |
| | 734 | if (strlen(s_hex) == 0) { |
| | 735 | fprintf(stderr, "Invalid probe address %s", s_hex); |
| | 736 | ret = -1; |
| | 737 | goto end; |
| | 738 | } |
| | 739 | ret = asprintf(&kprobe->probe_name, "probe_%s", s_hex); |
| | 740 | kprobe->probe_offset = 0; |
| | 741 | kprobe->probe_addr = strtoul(s_hex, NULL, 0); |
| | 742 | goto end; |
| | 743 | } |
| | 744 | |
| | 745 | /* No match */ |
| | 746 | kprobe = NULL; |
| | 747 | |
| | 748 | end: |
| | 749 | return kprobe; |
| | 750 | } |
| | 751 | |
| | 752 | /* |
| | 753 | * Return 0 if caller should continue, < 0 if caller should return |
| | 754 | * error, > 0 if caller should exit without reporting error. |
| | 755 | */ |
| | 756 | static int parse_options(int argc, char **argv) |
| | 757 | { |
| | 758 | poptContext pc; |
| | 759 | int opt, ret = 0; |
| | 760 | char *tmp_str; |
| | 761 | int *tid; |
| | 762 | int i; |
| | 763 | |
| | 764 | remote_live = 0; |
| | 765 | |
| | 766 | pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0); |
| | 767 | poptReadDefaultConfig(pc, 0); |
| | 768 | |
| | 769 | while ((opt = poptGetNextOpt(pc)) != -1) { |
| | 770 | switch (opt) { |
| | 771 | case OPT_HELP: |
| | 772 | usage(stdout); |
| | 773 | ret = 1; /* exit cleanly */ |
| | 774 | goto end; |
| | 775 | case OPT_TEXTDUMP: |
| | 776 | opt_textdump = 1; |
| | 777 | break; |
| | 778 | case OPT_ALL: |
| | 779 | opt_all = 1; |
| | 780 | break; |
| | 781 | case OPT_CHILD: |
| | 782 | opt_child = 1; |
| | 783 | break; |
| | 784 | case OPT_PID: |
| | 785 | toggle_filter = 1; |
| | 786 | tmp_str = strtok(opt_tid, ","); |
| | 787 | while (tmp_str) { |
| | 788 | tid = malloc(sizeof(int)); |
| | 789 | *tid = atoi(tmp_str); |
| | 790 | g_hash_table_insert(tid_filter_list, |
| | 791 | (gpointer) tid, tid); |
| | 792 | tmp_str = strtok(NULL, ","); |
| | 793 | } |
| | 794 | break; |
| | 795 | case OPT_BEGIN: |
| | 796 | /* start reading the live trace from the beginning */ |
| | 797 | opt_begin = 1; |
| | 798 | break; |
| | 799 | case OPT_HOSTNAME: |
| | 800 | toggle_filter = 1; |
| | 801 | tmp_str = strtok(opt_hostname, ","); |
| | 802 | while (tmp_str) { |
| | 803 | add_hostname_list(tmp_str, 1); |
| | 804 | tmp_str = strtok(NULL, ","); |
| | 805 | } |
| | 806 | break; |
| | 807 | case OPT_RELAY_HOSTNAME: |
| | 808 | remote_live = 1; |
| | 809 | break; |
| | 810 | case OPT_KPROBES: |
| | 811 | lttngtop.kprobes_table = g_ptr_array_new(); |
| | 812 | tmp_str = strtok(opt_kprobes, ","); |
| | 813 | while (tmp_str) { |
| | 814 | struct kprobes *kprobe; |
| | 815 | |
| | 816 | kprobe = parse_probe_opts(tmp_str); |
| | 817 | if (kprobe) { |
| | 818 | g_ptr_array_add( |
| | 819 | lttngtop.kprobes_table, |
| | 820 | kprobe); |
| | 821 | } else { |
| | 822 | ret = -EINVAL; |
| | 823 | goto end; |
| | 824 | } |
| | 825 | tmp_str = strtok(NULL, ","); |
| | 826 | } |
| | 827 | break; |
| | 828 | case OPT_OUTPUT_FILE: |
| | 829 | break; |
| | 830 | case OPT_VERBOSE: |
| | 831 | babeltrace_verbose = 1; |
| | 832 | break; |
| | 833 | default: |
| | 834 | ret = -EINVAL; |
| | 835 | goto end; |
| | 836 | } |
| | 837 | } |
| | 838 | |
| | 839 | opt_exec_name = NULL; |
| | 840 | opt_exec_argv = NULL; |
| | 841 | for (i = 0; i < argc; i++) { |
| | 842 | if (argv[i][0] == '-' && argv[i][1] == '-') { |
| | 843 | opt_exec_name = argv[i + 1]; |
| | 844 | opt_exec_argv = &argv[i + 1]; |
| | 845 | break; |
| | 846 | } |
| | 847 | } |
| | 848 | if (!opt_exec_name) { |
| | 849 | opt_input_path = poptGetArg(pc); |
| | 850 | } |
| | 851 | if (!opt_output) { |
| | 852 | opt_output = strdup("/dev/stdout"); |
| | 853 | } |
| | 854 | output = fopen(opt_output, "w"); |
| | 855 | if (!output) { |
| | 856 | perror("Error opening output file"); |
| | 857 | ret = -1; |
| | 858 | goto end; |
| | 859 | } |
| | 860 | |
| | 861 | end: |
| | 862 | if (pc) { |
| | 863 | poptFreeContext(pc); |
| | 864 | } |
| | 865 | return ret; |
| | 866 | } |
| | 867 | |
| | 868 | void iter_trace(struct bt_context *bt_ctx) |
| | 869 | { |
| | 870 | struct bt_ctf_iter *iter; |
| | 871 | struct bt_iter_pos begin_pos; |
| | 872 | struct kprobes *kprobe; |
| | 873 | const struct bt_ctf_event *event; |
| | 874 | int i; |
| | 875 | int ret = 0; |
| | 876 | |
| | 877 | begin_pos.type = BT_SEEK_BEGIN; |
| | 878 | iter = bt_ctf_iter_create(bt_ctx, &begin_pos, NULL); |
| | 879 | |
| | 880 | /* at each event, verify the status of the process table */ |
| | 881 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, |
| | 882 | fix_process_table, |
| | 883 | NULL, NULL, NULL); |
| | 884 | /* to handle the follow child option */ |
| | 885 | bt_ctf_iter_add_callback(iter, |
| | 886 | g_quark_from_static_string("sched_process_fork"), |
| | 887 | NULL, 0, handle_sched_process_fork, NULL, NULL, NULL); |
| | 888 | /* to clean up the process table */ |
| | 889 | bt_ctf_iter_add_callback(iter, |
| | 890 | g_quark_from_static_string("sched_process_free"), |
| | 891 | NULL, 0, handle_sched_process_free, NULL, NULL, NULL); |
| | 892 | /* to get all the process from the statedumps */ |
| | 893 | bt_ctf_iter_add_callback(iter, |
| | 894 | g_quark_from_static_string( |
| | 895 | "lttng_statedump_process_state"), |
| | 896 | NULL, 0, handle_statedump_process_state, |
| | 897 | NULL, NULL, NULL); |
| | 898 | bt_ctf_iter_add_callback(iter, |
| | 899 | g_quark_from_static_string( |
| | 900 | "lttng_statedump_file_descriptor"), |
| | 901 | NULL, 0, handle_statedump_file_descriptor, |
| | 902 | NULL, NULL, NULL); |
| | 903 | bt_ctf_iter_add_callback(iter, |
| | 904 | g_quark_from_static_string("sys_open"), |
| | 905 | NULL, 0, handle_sys_open, NULL, NULL, NULL); |
| | 906 | bt_ctf_iter_add_callback(iter, |
| | 907 | g_quark_from_static_string("sys_close"), |
| | 908 | NULL, 0, handle_sys_close, NULL, NULL, NULL); |
| | 909 | bt_ctf_iter_add_callback(iter, |
| | 910 | g_quark_from_static_string("exit_syscall"), |
| | 911 | NULL, 0, handle_exit_syscall, NULL, NULL, NULL); |
| | 912 | if (opt_textdump) { |
| | 913 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, |
| | 914 | textdump, |
| | 915 | NULL, NULL, NULL); |
| | 916 | } else { |
| | 917 | /* at each event check if we need to refresh */ |
| | 918 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, |
| | 919 | check_timestamp, |
| | 920 | NULL, NULL, NULL); |
| | 921 | /* to handle the scheduling events */ |
| | 922 | bt_ctf_iter_add_callback(iter, |
| | 923 | g_quark_from_static_string("sched_switch"), |
| | 924 | NULL, 0, handle_sched_switch, NULL, NULL, NULL); |
| | 925 | /* for IO top */ |
| | 926 | bt_ctf_iter_add_callback(iter, |
| | 927 | g_quark_from_static_string("sys_write"), |
| | 928 | NULL, 0, handle_sys_write, NULL, NULL, NULL); |
| | 929 | bt_ctf_iter_add_callback(iter, |
| | 930 | g_quark_from_static_string("sys_read"), |
| | 931 | NULL, 0, handle_sys_read, NULL, NULL, NULL); |
| | 932 | |
| | 933 | /* for kprobes */ |
| | 934 | if (lttngtop.kprobes_table) { |
| | 935 | for (i = 0; i < lttngtop.kprobes_table->len; i++) { |
| | 936 | kprobe = g_ptr_array_index(lttngtop.kprobes_table, i); |
| | 937 | bt_ctf_iter_add_callback(iter, |
| | 938 | g_quark_from_static_string( |
| | 939 | kprobe->probe_name), |
| | 940 | NULL, 0, handle_kprobes, |
| | 941 | NULL, NULL, NULL); |
| | 942 | } |
| | 943 | } |
| | 944 | } |
| | 945 | |
| | 946 | if (opt_exec_name) { |
| | 947 | pid_t pid; |
| | 948 | |
| | 949 | pid = fork(); |
| | 950 | if (pid == 0) { |
| | 951 | execvpe(opt_exec_name, opt_exec_argv, opt_exec_env); |
| | 952 | exit(EXIT_SUCCESS); |
| | 953 | } else if (pid > 0) { |
| | 954 | opt_exec_pid = pid; |
| | 955 | g_hash_table_insert(tid_filter_list, |
| | 956 | (gpointer) &pid, |
| | 957 | &pid); |
| | 958 | } else { |
| | 959 | perror("fork"); |
| | 960 | exit(EXIT_FAILURE); |
| | 961 | } |
| | 962 | } |
| | 963 | |
| | 964 | while ((event = bt_ctf_iter_read_event(iter)) != NULL) { |
| | 965 | if (quit || reload_trace) |
| | 966 | goto end_iter; |
| | 967 | ret = bt_iter_next(bt_ctf_get_iter(iter)); |
| | 968 | if (ret < 0) |
| | 969 | goto end_iter; |
| | 970 | } |
| | 971 | |
| | 972 | /* block until quit, we reached the end of the trace */ |
| | 973 | sem_wait(&end_trace_sem); |
| | 974 | |
| | 975 | end_iter: |
| | 976 | bt_ctf_iter_destroy(iter); |
| | 977 | } |
| | 978 | |
| | 979 | /* |
| | 980 | * bt_context_add_traces_recursive: Open a trace recursively |
| | 981 | * (copied from BSD code in converter/babeltrace.c) |
| | 982 | * |
| | 983 | * Find each trace present in the subdirectory starting from the given |
| | 984 | * path, and add them to the context. The packet_seek parameter can be |
| | 985 | * NULL: this specify to use the default format packet_seek. |
| | 986 | * |
| | 987 | * Return: 0 on success, nonzero on failure. |
| | 988 | * Unable to open toplevel: failure. |
| | 989 | * Unable to open some subdirectory or file: warn and continue; |
| | 990 | */ |
| | 991 | int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path, |
| | 992 | const char *format_str, |
| | 993 | void (*packet_seek)(struct bt_stream_pos *pos, |
| | 994 | size_t offset, int whence)) |
| | 995 | { |
| | 996 | FTS *tree; |
| | 997 | FTSENT *node; |
| | 998 | GArray *trace_ids; |
| | 999 | char lpath[PATH_MAX]; |
| | 1000 | char * const paths[2] = { lpath, NULL }; |
| | 1001 | int ret = -1; |
| | 1002 | |
| | 1003 | if ((strncmp(path, NET4_URL_PREFIX, sizeof(NET4_URL_PREFIX) - 1)) == 0 || |
| | 1004 | (strncmp(path, NET6_URL_PREFIX, sizeof(NET6_URL_PREFIX) - 1)) == 0 || |
| | 1005 | (strncmp(path, NET_URL_PREFIX, sizeof(NET_URL_PREFIX) - 1)) == 0) { |
| | 1006 | ret = bt_context_add_trace(ctx, |
| | 1007 | path, format_str, packet_seek, NULL, NULL); |
| | 1008 | if (ret < 0) { |
| | 1009 | fprintf(stderr, "[warning] [Context] cannot open trace \"%s\" " |
| | 1010 | "for reading.\n", path); |
| | 1011 | /* Allow to skip erroneous traces. */ |
| | 1012 | ret = 1; /* partial error */ |
| | 1013 | } |
| | 1014 | return ret; |
| | 1015 | } |
| | 1016 | /* |
| | 1017 | * Need to copy path, because fts_open can change it. |
| | 1018 | * It is the pointer array, not the strings, that are constant. |
| | 1019 | */ |
| | 1020 | strncpy(lpath, path, PATH_MAX); |
| | 1021 | lpath[PATH_MAX - 1] = '\0'; |
| | 1022 | |
| | 1023 | tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0); |
| | 1024 | if (tree == NULL) { |
| | 1025 | fprintf(stderr, "[error] [Context] Cannot traverse \"%s\" for reading.\n", |
| | 1026 | path); |
| | 1027 | return -EINVAL; |
| | 1028 | } |
| | 1029 | |
| | 1030 | trace_ids = g_array_new(FALSE, TRUE, sizeof(int)); |
| | 1031 | |
| | 1032 | while ((node = fts_read(tree))) { |
| | 1033 | int dirfd, metafd; |
| | 1034 | |
| | 1035 | if (!(node->fts_info & FTS_D)) |
| | 1036 | continue; |
| | 1037 | |
| | 1038 | dirfd = open(node->fts_accpath, 0); |
| | 1039 | if (dirfd < 0) { |
| | 1040 | fprintf(stderr, "[error] [Context] Unable to open trace " |
| | 1041 | "directory file descriptor.\n"); |
| | 1042 | ret = dirfd; |
| | 1043 | goto error; |
| | 1044 | } |
| | 1045 | metafd = openat(dirfd, "metadata", O_RDONLY); |
| | 1046 | if (metafd < 0) { |
| | 1047 | close(dirfd); |
| | 1048 | continue; |
| | 1049 | } else { |
| | 1050 | int trace_id; |
| | 1051 | |
| | 1052 | ret = close(metafd); |
| | 1053 | if (ret < 0) { |
| | 1054 | perror("close"); |
| | 1055 | goto error; |
| | 1056 | } |
| | 1057 | ret = close(dirfd); |
| | 1058 | if (ret < 0) { |
| | 1059 | perror("close"); |
| | 1060 | goto error; |
| | 1061 | } |
| | 1062 | |
| | 1063 | trace_id = bt_context_add_trace(ctx, |
| | 1064 | node->fts_accpath, format_str, |
| | 1065 | packet_seek, NULL, NULL); |
| | 1066 | if (trace_id < 0) { |
| | 1067 | fprintf(stderr, "[warning] [Context] opening trace \"%s\" from %s " |
| | 1068 | "for reading.\n", node->fts_accpath, path); |
| | 1069 | /* Allow to skip erroneous traces. */ |
| | 1070 | continue; |
| | 1071 | } |
| | 1072 | g_array_append_val(trace_ids, trace_id); |
| | 1073 | } |
| | 1074 | } |
| | 1075 | |
| | 1076 | g_array_free(trace_ids, TRUE); |
| | 1077 | return ret; |
| | 1078 | |
| | 1079 | error: |
| | 1080 | return ret; |
| | 1081 | } |
| | 1082 | |
| | 1083 | static int check_field_requirements(const struct bt_ctf_field_decl *const * field_list, |
| | 1084 | int field_cnt, int *tid_check, int *pid_check, |
| | 1085 | int *procname_check, int *ppid_check) |
| | 1086 | { |
| | 1087 | int j; |
| | 1088 | struct perfcounter *global; |
| | 1089 | const char *name; |
| | 1090 | |
| | 1091 | for (j = 0; j < field_cnt; j++) { |
| | 1092 | name = bt_ctf_get_decl_field_name(field_list[j]); |
| | 1093 | if (*tid_check == 0) { |
| | 1094 | if (strncmp(name, "tid", 3) == 0) |
| | 1095 | (*tid_check)++; |
| | 1096 | } |
| | 1097 | if (*pid_check == 0) { |
| | 1098 | if (strncmp(name, "pid", 3) == 0) |
| | 1099 | (*pid_check)++; |
| | 1100 | } |
| | 1101 | if (*ppid_check == 0) { |
| | 1102 | if (strncmp(name, "ppid", 4) == 0) |
| | 1103 | (*ppid_check)++; |
| | 1104 | } |
| | 1105 | if (*procname_check == 0) { |
| | 1106 | if (strncmp(name, "procname", 8) == 0) |
| | 1107 | (*procname_check)++; |
| | 1108 | } |
| | 1109 | if (strncmp(name, "perf_", 5) == 0) { |
| | 1110 | global = g_hash_table_lookup(global_perf_liszt, (gpointer) name); |
| | 1111 | if (!global) { |
| | 1112 | global = g_new0(struct perfcounter, 1); |
| | 1113 | /* by default, sort on the first perf context */ |
| | 1114 | if (g_hash_table_size(global_perf_liszt) == 0) |
| | 1115 | global->sort = 1; |
| | 1116 | global->visible = 1; |
| | 1117 | g_hash_table_insert(global_perf_liszt, (gpointer) strdup(name), global); |
| | 1118 | } |
| | 1119 | } |
| | 1120 | } |
| | 1121 | |
| | 1122 | if (*tid_check == 1 && *pid_check == 1 && *ppid_check == 1 && |
| | 1123 | *procname_check == 1) |
| | 1124 | return 0; |
| | 1125 | |
| | 1126 | return -1; |
| | 1127 | } |
| | 1128 | |
| | 1129 | /* |
| | 1130 | * check_requirements: check if the required context informations are available |
| | 1131 | * |
| | 1132 | * If each mandatory context information is available for at least in one |
| | 1133 | * event, return 0 otherwise return -1. |
| | 1134 | */ |
| | 1135 | int check_requirements(struct bt_context *ctx) |
| | 1136 | { |
| | 1137 | unsigned int i, evt_cnt, field_cnt; |
| | 1138 | struct bt_ctf_event_decl *const * evt_list; |
| | 1139 | const struct bt_ctf_field_decl *const * field_list; |
| | 1140 | int tid_check = 0; |
| | 1141 | int pid_check = 0; |
| | 1142 | int procname_check = 0; |
| | 1143 | int ppid_check = 0; |
| | 1144 | int ret = 0; |
| | 1145 | |
| | 1146 | ret = bt_ctf_get_event_decl_list(0, ctx, &evt_list, &evt_cnt); |
| | 1147 | if (ret < 0) { |
| | 1148 | goto end; |
| | 1149 | } |
| | 1150 | |
| | 1151 | for (i = 0; i < evt_cnt; i++) { |
| | 1152 | bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_EVENT_CONTEXT, |
| | 1153 | &field_list, &field_cnt); |
| | 1154 | ret = check_field_requirements(field_list, field_cnt, |
| | 1155 | &tid_check, &pid_check, &procname_check, |
| | 1156 | &ppid_check); |
| | 1157 | |
| | 1158 | bt_ctf_get_decl_fields(evt_list[i], BT_EVENT_CONTEXT, |
| | 1159 | &field_list, &field_cnt); |
| | 1160 | ret = check_field_requirements(field_list, field_cnt, |
| | 1161 | &tid_check, &pid_check, &procname_check, |
| | 1162 | &ppid_check); |
| | 1163 | |
| | 1164 | bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_PACKET_CONTEXT, |
| | 1165 | &field_list, &field_cnt); |
| | 1166 | ret = check_field_requirements(field_list, field_cnt, |
| | 1167 | &tid_check, &pid_check, &procname_check, |
| | 1168 | &ppid_check); |
| | 1169 | } |
| | 1170 | |
| | 1171 | if (tid_check == 0) { |
| | 1172 | ret = -1; |
| | 1173 | fprintf(stderr, "[error] missing tid context information\n"); |
| | 1174 | } |
| | 1175 | if (pid_check == 0) { |
| | 1176 | ret = -1; |
| | 1177 | fprintf(stderr, "[error] missing pid context information\n"); |
| | 1178 | } |
| | 1179 | if (ppid_check == 0) { |
| | 1180 | ret = -1; |
| | 1181 | fprintf(stderr, "[error] missing ppid context information\n"); |
| | 1182 | } |
| | 1183 | if (procname_check == 0) { |
| | 1184 | ret = -1; |
| | 1185 | fprintf(stderr, "[error] missing procname context information\n"); |
| | 1186 | } |
| | 1187 | if (ret == 0) { |
| | 1188 | valid_trace = 1; |
| | 1189 | } |
| | 1190 | |
| | 1191 | end: |
| | 1192 | return ret; |
| | 1193 | } |
| | 1194 | |
| | 1195 | static void handle_sigchild(int signal) |
| | 1196 | { |
| | 1197 | int status; |
| | 1198 | |
| | 1199 | waitpid(opt_exec_pid, &status, 0); |
| | 1200 | } |
| | 1201 | |
| | 1202 | int main(int argc, char **argv, char **envp) |
| | 1203 | { |
| | 1204 | int ret; |
| | 1205 | struct bt_context *bt_ctx = NULL; |
| | 1206 | |
| | 1207 | init_lttngtop(); |
| | 1208 | ret = parse_options(argc, argv); |
| | 1209 | if (ret < 0) { |
| | 1210 | fprintf(stdout, "Error parsing options.\n\n"); |
| | 1211 | usage(stdout); |
| | 1212 | exit(EXIT_FAILURE); |
| | 1213 | } else if (ret > 0) { |
| | 1214 | exit(EXIT_SUCCESS); |
| | 1215 | } |
| | 1216 | |
| | 1217 | if (opt_exec_name) { |
| | 1218 | opt_exec_env = envp; |
| | 1219 | signal(SIGCHLD, handle_sigchild); |
| | 1220 | } |
| | 1221 | |
| | 1222 | if (!opt_input_path && !remote_live && !opt_exec_name) { |
| | 1223 | /* mmap live */ |
| | 1224 | #ifdef LTTNGTOP_MMAP_LIVE |
| | 1225 | if (opt_textdump) { |
| | 1226 | signal(SIGTERM, handle_textdump_sigterm); |
| | 1227 | signal(SIGINT, handle_textdump_sigterm); |
| | 1228 | } |
| | 1229 | mmap_live_loop(bt_ctx); |
| | 1230 | pthread_join(timer_thread, NULL); |
| | 1231 | quit = 1; |
| | 1232 | pthread_join(display_thread, NULL); |
| | 1233 | |
| | 1234 | lttng_stop_tracing("test"); |
| | 1235 | lttng_destroy_session("test"); |
| | 1236 | |
| | 1237 | goto end; |
| | 1238 | #else |
| | 1239 | fprintf(stderr, "[ERROR] Mmap live support not compiled, specify a " |
| | 1240 | "trace directory or -r <relayd hostname/IP>\n"); |
| | 1241 | usage(stdout); |
| | 1242 | ret = -1; |
| | 1243 | goto end; |
| | 1244 | #endif /* LTTNGTOP_MMAP_LIVE */ |
| | 1245 | } else if (!opt_input_path && remote_live) { |
| | 1246 | /* network live */ |
| | 1247 | bt_ctx = bt_context_create(); |
| | 1248 | ret = bt_context_add_traces_recursive(bt_ctx, opt_relay_hostname, |
| | 1249 | "lttng-live", NULL); |
| | 1250 | if (ret < 0) { |
| | 1251 | fprintf(stderr, "[error] Opening the trace\n"); |
| | 1252 | goto end; |
| | 1253 | } |
| | 1254 | } else { |
| | 1255 | //init_lttngtop(); |
| | 1256 | |
| | 1257 | bt_ctx = bt_context_create(); |
| | 1258 | ret = bt_context_add_traces_recursive(bt_ctx, opt_input_path, "ctf", NULL); |
| | 1259 | if (ret < 0) { |
| | 1260 | fprintf(stderr, "[error] Opening the trace\n"); |
| | 1261 | goto end; |
| | 1262 | } |
| | 1263 | |
| | 1264 | ret = check_requirements(bt_ctx); |
| | 1265 | if (ret < 0 && !valid_trace) { |
| | 1266 | fprintf(stderr, "[error] some mandatory contexts " |
| | 1267 | "were missing, exiting.\n"); |
| | 1268 | //goto end; |
| | 1269 | } |
| | 1270 | |
| | 1271 | if (!opt_textdump) { |
| | 1272 | pthread_create(&display_thread, NULL, ncurses_display, |
| | 1273 | (void *) NULL); |
| | 1274 | pthread_create(&timer_thread, NULL, refresh_thread, |
| | 1275 | (void *) NULL); |
| | 1276 | } |
| | 1277 | |
| | 1278 | iter_trace(bt_ctx); |
| | 1279 | } |
| | 1280 | |
| | 1281 | |
| | 1282 | pthread_join(display_thread, NULL); |
| | 1283 | quit = 1; |
| | 1284 | pthread_join(timer_thread, NULL); |
| | 1285 | |
| | 1286 | ret = 0; |
| | 1287 | |
| | 1288 | end: |
| | 1289 | if (bt_ctx) |
| | 1290 | bt_context_put(bt_ctx); |
| | 1291 | |
| | 1292 | return ret; |
| | 1293 | } |
projects / lttngtop.git / blame_incremental