dumpstate.cpp revision a960bc95b2430ba01fc4b04b4527d32e00eeb4b5
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <dirent.h> 18#include <errno.h> 19#include <fcntl.h> 20#include <limits.h> 21#include <stdbool.h> 22#include <stdio.h> 23#include <stdlib.h> 24#include <string.h> 25#include <sys/capability.h> 26#include <sys/prctl.h> 27#include <sys/resource.h> 28#include <sys/stat.h> 29#include <sys/time.h> 30#include <sys/wait.h> 31#include <unistd.h> 32 33#include <cutils/properties.h> 34 35#include "private/android_filesystem_config.h" 36 37#define LOG_TAG "dumpstate" 38#include <cutils/log.h> 39 40#include "dumpstate.h" 41 42/* read before root is shed */ 43static char cmdline_buf[16384] = "(unknown)"; 44static const char *dump_traces_path = NULL; 45 46static char screenshot_path[PATH_MAX] = ""; 47 48#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops" 49 50#define RAFT_DIR "/data/misc/raft/" 51#define TOMBSTONE_DIR "/data/tombstones" 52#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_" 53/* Can accomodate a tombstone number up to 9999. */ 54#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4) 55#define NUM_TOMBSTONES 10 56 57typedef struct { 58 char name[TOMBSTONE_MAX_LEN]; 59 int fd; 60} tombstone_data_t; 61 62static tombstone_data_t tombstone_data[NUM_TOMBSTONES]; 63 64/* Get the fds of any tombstone that was modified in the last half an hour. */ 65static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) { 66 time_t thirty_minutes_ago = time(NULL) - 60*30; 67 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 68 snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i); 69 int fd = TEMP_FAILURE_RETRY(open(data[i].name, 70 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 71 struct stat st; 72 if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) && 73 (time_t) st.st_mtime >= thirty_minutes_ago) { 74 data[i].fd = fd; 75 } else { 76 close(fd); 77 data[i].fd = -1; 78 } 79 } 80} 81 82static void dump_dev_files(const char *title, const char *driverpath, const char *filename) 83{ 84 DIR *d; 85 struct dirent *de; 86 char path[PATH_MAX]; 87 88 d = opendir(driverpath); 89 if (d == NULL) { 90 return; 91 } 92 93 while ((de = readdir(d))) { 94 if (de->d_type != DT_LNK) { 95 continue; 96 } 97 snprintf(path, sizeof(path), "%s/%s/%s", driverpath, de->d_name, filename); 98 dump_file(title, path); 99 } 100 101 closedir(d); 102} 103 104static bool skip_not_stat(const char *path) { 105 static const char stat[] = "/stat"; 106 size_t len = strlen(path); 107 if (path[len - 1] == '/') { /* Directory? */ 108 return false; 109 } 110 return strcmp(path + len - sizeof(stat) + 1, stat); /* .../stat? */ 111} 112 113static const char mmcblk0[] = "/sys/block/mmcblk0/"; 114unsigned long worst_write_perf = 20000; /* in KB/s */ 115 116// 117// stat offsets 118// Name units description 119// ---- ----- ----------- 120// read I/Os requests number of read I/Os processed 121#define __STAT_READ_IOS 0 122// read merges requests number of read I/Os merged with in-queue I/O 123#define __STAT_READ_MERGES 1 124// read sectors sectors number of sectors read 125#define __STAT_READ_SECTORS 2 126// read ticks milliseconds total wait time for read requests 127#define __STAT_READ_TICKS 3 128// write I/Os requests number of write I/Os processed 129#define __STAT_WRITE_IOS 4 130// write merges requests number of write I/Os merged with in-queue I/O 131#define __STAT_WRITE_MERGES 5 132// write sectors sectors number of sectors written 133#define __STAT_WRITE_SECTORS 6 134// write ticks milliseconds total wait time for write requests 135#define __STAT_WRITE_TICKS 7 136// in_flight requests number of I/Os currently in flight 137#define __STAT_IN_FLIGHT 8 138// io_ticks milliseconds total time this block device has been active 139#define __STAT_IO_TICKS 9 140// time_in_queue milliseconds total wait time for all requests 141#define __STAT_IN_QUEUE 10 142#define __STAT_NUMBER_FIELD 11 143// 144// read I/Os, write I/Os 145// ===================== 146// 147// These values increment when an I/O request completes. 148// 149// read merges, write merges 150// ========================= 151// 152// These values increment when an I/O request is merged with an 153// already-queued I/O request. 154// 155// read sectors, write sectors 156// =========================== 157// 158// These values count the number of sectors read from or written to this 159// block device. The "sectors" in question are the standard UNIX 512-byte 160// sectors, not any device- or filesystem-specific block size. The 161// counters are incremented when the I/O completes. 162#define SECTOR_SIZE 512 163// 164// read ticks, write ticks 165// ======================= 166// 167// These values count the number of milliseconds that I/O requests have 168// waited on this block device. If there are multiple I/O requests waiting, 169// these values will increase at a rate greater than 1000/second; for 170// example, if 60 read requests wait for an average of 30 ms, the read_ticks 171// field will increase by 60*30 = 1800. 172// 173// in_flight 174// ========= 175// 176// This value counts the number of I/O requests that have been issued to 177// the device driver but have not yet completed. It does not include I/O 178// requests that are in the queue but not yet issued to the device driver. 179// 180// io_ticks 181// ======== 182// 183// This value counts the number of milliseconds during which the device has 184// had I/O requests queued. 185// 186// time_in_queue 187// ============= 188// 189// This value counts the number of milliseconds that I/O requests have waited 190// on this block device. If there are multiple I/O requests waiting, this 191// value will increase as the product of the number of milliseconds times the 192// number of requests waiting (see "read ticks" above for an example). 193#define S_TO_MS 1000 194// 195 196static int dump_stat_from_fd(const char *title __unused, const char *path, int fd) { 197 unsigned long long fields[__STAT_NUMBER_FIELD]; 198 bool z; 199 char *cp, *buffer = NULL; 200 size_t i = 0; 201 FILE *fp = fdopen(fd, "rb"); 202 getline(&buffer, &i, fp); 203 fclose(fp); 204 if (!buffer) { 205 return -errno; 206 } 207 i = strlen(buffer); 208 while ((i > 0) && (buffer[i - 1] == '\n')) { 209 buffer[--i] = '\0'; 210 } 211 if (!*buffer) { 212 free(buffer); 213 return 0; 214 } 215 z = true; 216 for (cp = buffer, i = 0; i < (sizeof(fields) / sizeof(fields[0])); ++i) { 217 fields[i] = strtoull(cp, &cp, 10); 218 if (fields[i] != 0) { 219 z = false; 220 } 221 } 222 if (z) { /* never accessed */ 223 free(buffer); 224 return 0; 225 } 226 227 if (!strncmp(path, mmcblk0, sizeof(mmcblk0) - 1)) { 228 path += sizeof(mmcblk0) - 1; 229 } 230 231 printf("%s: %s\n", path, buffer); 232 free(buffer); 233 234 if (fields[__STAT_IO_TICKS]) { 235 unsigned long read_perf = 0; 236 unsigned long read_ios = 0; 237 if (fields[__STAT_READ_TICKS]) { 238 unsigned long long divisor = fields[__STAT_READ_TICKS] 239 * fields[__STAT_IO_TICKS]; 240 read_perf = ((unsigned long long)SECTOR_SIZE 241 * fields[__STAT_READ_SECTORS] 242 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 243 / divisor; 244 read_ios = ((unsigned long long)S_TO_MS * fields[__STAT_READ_IOS] 245 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 246 / divisor; 247 } 248 249 unsigned long write_perf = 0; 250 unsigned long write_ios = 0; 251 if (fields[__STAT_WRITE_TICKS]) { 252 unsigned long long divisor = fields[__STAT_WRITE_TICKS] 253 * fields[__STAT_IO_TICKS]; 254 write_perf = ((unsigned long long)SECTOR_SIZE 255 * fields[__STAT_WRITE_SECTORS] 256 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 257 / divisor; 258 write_ios = ((unsigned long long)S_TO_MS * fields[__STAT_WRITE_IOS] 259 * fields[__STAT_IN_QUEUE] + (divisor >> 1)) 260 / divisor; 261 } 262 263 unsigned queue = (fields[__STAT_IN_QUEUE] 264 + (fields[__STAT_IO_TICKS] >> 1)) 265 / fields[__STAT_IO_TICKS]; 266 267 if (!write_perf && !write_ios) { 268 printf("%s: perf(ios) rd: %luKB/s(%lu/s) q: %u\n", 269 path, read_perf, read_ios, queue); 270 } else { 271 printf("%s: perf(ios) rd: %luKB/s(%lu/s) wr: %luKB/s(%lu/s) q: %u\n", 272 path, read_perf, read_ios, write_perf, write_ios, queue); 273 } 274 275 /* bugreport timeout factor adjustment */ 276 if ((write_perf > 1) && (write_perf < worst_write_perf)) { 277 worst_write_perf = write_perf; 278 } 279 } 280 return 0; 281} 282 283/* Copied policy from system/core/logd/LogBuffer.cpp */ 284 285#define LOG_BUFFER_SIZE (256 * 1024) 286#define LOG_BUFFER_MIN_SIZE (64 * 1024UL) 287#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) 288 289static bool valid_size(unsigned long value) { 290 if ((value < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < value)) { 291 return false; 292 } 293 294 long pages = sysconf(_SC_PHYS_PAGES); 295 if (pages < 1) { 296 return true; 297 } 298 299 long pagesize = sysconf(_SC_PAGESIZE); 300 if (pagesize <= 1) { 301 pagesize = PAGE_SIZE; 302 } 303 304 // maximum memory impact a somewhat arbitrary ~3% 305 pages = (pages + 31) / 32; 306 unsigned long maximum = pages * pagesize; 307 308 if ((maximum < LOG_BUFFER_MIN_SIZE) || (LOG_BUFFER_MAX_SIZE < maximum)) { 309 return true; 310 } 311 312 return value <= maximum; 313} 314 315static unsigned long property_get_size(const char *key) { 316 unsigned long value; 317 char *cp, property[PROPERTY_VALUE_MAX]; 318 319 property_get(key, property, ""); 320 value = strtoul(property, &cp, 10); 321 322 switch(*cp) { 323 case 'm': 324 case 'M': 325 value *= 1024; 326 /* FALLTHRU */ 327 case 'k': 328 case 'K': 329 value *= 1024; 330 /* FALLTHRU */ 331 case '\0': 332 break; 333 334 default: 335 value = 0; 336 } 337 338 if (!valid_size(value)) { 339 value = 0; 340 } 341 342 return value; 343} 344 345/* timeout in ms */ 346static unsigned long logcat_timeout(const char *name) { 347 static const char global_tuneable[] = "persist.logd.size"; // Settings App 348 static const char global_default[] = "ro.logd.size"; // BoardConfig.mk 349 char key[PROP_NAME_MAX]; 350 unsigned long property_size, default_size; 351 352 default_size = property_get_size(global_tuneable); 353 if (!default_size) { 354 default_size = property_get_size(global_default); 355 } 356 357 snprintf(key, sizeof(key), "%s.%s", global_tuneable, name); 358 property_size = property_get_size(key); 359 360 if (!property_size) { 361 snprintf(key, sizeof(key), "%s.%s", global_default, name); 362 property_size = property_get_size(key); 363 } 364 365 if (!property_size) { 366 property_size = default_size; 367 } 368 369 if (!property_size) { 370 property_size = LOG_BUFFER_SIZE; 371 } 372 373 /* Engineering margin is ten-fold our guess */ 374 return 10 * (property_size + worst_write_perf) / worst_write_perf; 375} 376 377/* End copy from system/core/logd/LogBuffer.cpp */ 378 379/* dumps the current system state to stdout */ 380static void dumpstate() { 381 unsigned long timeout; 382 time_t now = time(NULL); 383 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 384 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 385 char network[PROPERTY_VALUE_MAX], date[80]; 386 char build_type[PROPERTY_VALUE_MAX]; 387 388 property_get("ro.build.display.id", build, "(unknown)"); 389 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 390 property_get("ro.build.type", build_type, "(unknown)"); 391 property_get("ro.baseband", radio, "(unknown)"); 392 property_get("ro.bootloader", bootloader, "(unknown)"); 393 property_get("gsm.operator.alpha", network, "(unknown)"); 394 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 395 396 printf("========================================================\n"); 397 printf("== dumpstate: %s\n", date); 398 printf("========================================================\n"); 399 400 printf("\n"); 401 printf("Build: %s\n", build); 402 printf("Build fingerprint: '%s'\n", fingerprint); /* format is important for other tools */ 403 printf("Bootloader: %s\n", bootloader); 404 printf("Radio: %s\n", radio); 405 printf("Network: %s\n", network); 406 407 printf("Kernel: "); 408 dump_file(NULL, "/proc/version"); 409 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 410 printf("\n"); 411 412 dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version"); 413 run_command("UPTIME", 10, "uptime", NULL); 414 dump_files("UPTIME MMC PERF", mmcblk0, skip_not_stat, dump_stat_from_fd); 415 dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd"); 416 dump_file("MEMORY INFO", "/proc/meminfo"); 417 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-H", NULL); 418 run_command("PROCRANK", 20, SU_PATH, "root", "procrank", NULL); 419 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 420 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 421 dump_file("SLAB INFO", "/proc/slabinfo"); 422 dump_file("ZONEINFO", "/proc/zoneinfo"); 423 dump_file("PAGETYPEINFO", "/proc/pagetypeinfo"); 424 dump_file("BUDDYINFO", "/proc/buddyinfo"); 425 dump_file("FRAGMENTATION INFO", "/d/extfrag/unusable_index"); 426 427 dump_file("KERNEL WAKELOCKS", "/proc/wakelocks"); 428 dump_file("KERNEL WAKE SOURCES", "/d/wakeup_sources"); 429 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 430 dump_file("KERNEL SYNC", "/d/sync"); 431 432 run_command("PROCESSES AND THREADS", 10, "ps", "-Z", "-t", "-p", "-P", NULL); 433 run_command("LIBRANK", 10, "librank", NULL); 434 435 do_dmesg(); 436 437 run_command("LIST OF OPEN FILES", 10, SU_PATH, "root", "lsof", NULL); 438 for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES"); 439 for_each_tid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 440 441 if (screenshot_path[0]) { 442 ALOGI("taking screenshot\n"); 443 run_command(NULL, 10, "/system/bin/screencap", "-p", screenshot_path, NULL); 444 ALOGI("wrote screenshot: %s\n", screenshot_path); 445 } 446 447 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 448 // calculate timeout 449 timeout = logcat_timeout("main") + logcat_timeout("system") + logcat_timeout("crash"); 450 if (timeout < 20000) { 451 timeout = 20000; 452 } 453 run_command("SYSTEM LOG", timeout / 1000, "logcat", "-v", "threadtime", 454 "-v", "printable", 455 "-d", 456 "*:v", NULL); 457 timeout = logcat_timeout("events"); 458 if (timeout < 20000) { 459 timeout = 20000; 460 } 461 run_command("EVENT LOG", timeout / 1000, "logcat", "-b", "events", 462 "-v", "threadtime", 463 "-v", "printable", 464 "-d", 465 "*:v", NULL); 466 timeout = logcat_timeout("radio"); 467 if (timeout < 20000) { 468 timeout = 20000; 469 } 470 run_command("RADIO LOG", timeout / 1000, "logcat", "-b", "radio", 471 "-v", "threadtime", 472 "-v", "printable", 473 "-d", 474 "*:v", NULL); 475 476 run_command("LOG STATISTICS", 10, "logcat", "-b", "all", "-S", NULL); 477 478 run_command("RAFT LOGS", 600, SU_PATH, "root", "logcompressor", "-r", RAFT_DIR, NULL); 479 480 /* show the traces we collected in main(), if that was done */ 481 if (dump_traces_path != NULL) { 482 dump_file("VM TRACES JUST NOW", dump_traces_path); 483 } 484 485 /* only show ANR traces if they're less than 15 minutes old */ 486 struct stat st; 487 char anr_traces_path[PATH_MAX]; 488 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 489 if (!anr_traces_path[0]) { 490 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 491 } else { 492 int fd = TEMP_FAILURE_RETRY(open(anr_traces_path, 493 O_RDONLY | O_CLOEXEC | O_NOFOLLOW | O_NONBLOCK)); 494 if (fd < 0) { 495 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 496 } else { 497 dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd); 498 } 499 } 500 501 /* slow traces for slow operations */ 502 if (anr_traces_path[0] != 0) { 503 int tail = strlen(anr_traces_path)-1; 504 while (tail > 0 && anr_traces_path[tail] != '/') { 505 tail--; 506 } 507 int i = 0; 508 while (1) { 509 sprintf(anr_traces_path+tail+1, "slow%02d.txt", i); 510 if (stat(anr_traces_path, &st)) { 511 // No traces file at this index, done with the files. 512 break; 513 } 514 dump_file("VM TRACES WHEN SLOW", anr_traces_path); 515 i++; 516 } 517 } 518 519 int dumped = 0; 520 for (size_t i = 0; i < NUM_TOMBSTONES; i++) { 521 if (tombstone_data[i].fd != -1) { 522 dumped = 1; 523 dump_file_from_fd("TOMBSTONE", tombstone_data[i].name, tombstone_data[i].fd); 524 tombstone_data[i].fd = -1; 525 } 526 } 527 if (!dumped) { 528 printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR); 529 } 530 531 dump_file("NETWORK DEV INFO", "/proc/net/dev"); 532 dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all"); 533 dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt"); 534 dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl"); 535 dump_file("QTAGUID STATS INFO", "/proc/net/xt_qtaguid/stats"); 536 537 if (!stat(PSTORE_LAST_KMSG, &st)) { 538 /* Also TODO: Make console-ramoops CAP_SYSLOG protected. */ 539 dump_file("LAST KMSG", PSTORE_LAST_KMSG); 540 } else { 541 /* TODO: Make last_kmsg CAP_SYSLOG protected. b/5555691 */ 542 dump_file("LAST KMSG", "/proc/last_kmsg"); 543 } 544 545 /* kernels must set CONFIG_PSTORE_PMSG, slice up pstore with device tree */ 546 run_command("LAST LOGCAT", 10, "logcat", "-L", 547 "-b", "all", 548 "-v", "threadtime", 549 "-v", "printable", 550 "-d", 551 "*:v", NULL); 552 553 /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */ 554 555 run_command("NETWORK INTERFACES", 10, "ip", "link", NULL); 556 557 run_command("IPv4 ADDRESSES", 10, "ip", "-4", "addr", "show", NULL); 558 run_command("IPv6 ADDRESSES", 10, "ip", "-6", "addr", "show", NULL); 559 560 run_command("IP RULES", 10, "ip", "rule", "show", NULL); 561 run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL); 562 563 dump_route_tables(); 564 565 run_command("ARP CACHE", 10, "ip", "-4", "neigh", "show", NULL); 566 run_command("IPv6 ND CACHE", 10, "ip", "-6", "neigh", "show", NULL); 567 568 run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL); 569 run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL); 570 run_command("IPTABLE NAT", 10, SU_PATH, "root", "iptables", "-t", "nat", "-L", "-nvx", NULL); 571 /* no ip6 nat */ 572 run_command("IPTABLE RAW", 10, SU_PATH, "root", "iptables", "-t", "raw", "-L", "-nvx", NULL); 573 run_command("IP6TABLE RAW", 10, SU_PATH, "root", "ip6tables", "-t", "raw", "-L", "-nvx", NULL); 574 575 run_command("WIFI NETWORKS", 20, 576 SU_PATH, "root", "wpa_cli", "IFNAME=wlan0", "list_networks", NULL); 577 578#ifdef FWDUMP_bcmdhd 579 run_command("ND OFFLOAD TABLE", 5, 580 SU_PATH, "root", "wlutil", "nd_hostip", NULL); 581 582 run_command("DUMP WIFI INTERNAL COUNTERS (1)", 20, 583 SU_PATH, "root", "wlutil", "counters", NULL); 584 585 run_command("ND OFFLOAD STATUS (1)", 5, 586 SU_PATH, "root", "wlutil", "nd_status", NULL); 587 588#endif 589 dump_file("INTERRUPTS (1)", "/proc/interrupts"); 590 591 run_command("NETWORK DIAGNOSTICS", 10, "dumpsys", "connectivity", "--diag", NULL); 592 593#ifdef FWDUMP_bcmdhd 594 run_command("DUMP WIFI STATUS", 20, 595 SU_PATH, "root", "dhdutil", "-i", "wlan0", "dump", NULL); 596 597 run_command("DUMP WIFI INTERNAL COUNTERS (2)", 20, 598 SU_PATH, "root", "wlutil", "counters", NULL); 599 600 run_command("ND OFFLOAD STATUS (2)", 5, 601 SU_PATH, "root", "wlutil", "nd_status", NULL); 602#endif 603 dump_file("INTERRUPTS (2)", "/proc/interrupts"); 604 605 print_properties(); 606 607 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 608 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 609 610 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 611 612 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 613 614 printf("------ BACKLIGHTS ------\n"); 615 printf("LCD brightness="); 616 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 617 printf("Button brightness="); 618 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 619 printf("Keyboard brightness="); 620 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 621 printf("ALS mode="); 622 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 623 printf("LCD driver registers:\n"); 624 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 625 printf("\n"); 626 627 /* Binder state is expensive to look at as it uses a lot of memory. */ 628 dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log"); 629 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log"); 630 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions"); 631 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats"); 632 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state"); 633 634 printf("========================================================\n"); 635 printf("== Board\n"); 636 printf("========================================================\n"); 637 638 dumpstate_board(); 639 printf("\n"); 640 641 /* Migrate the ril_dumpstate to a dumpstate_board()? */ 642 char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0}; 643 property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30"); 644 if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) { 645 if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) { 646 // su does not exist on user builds, so try running without it. 647 // This way any implementations of vril-dump that do not require 648 // root can run on user builds. 649 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 650 "vril-dump", NULL); 651 } else { 652 run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout), 653 SU_PATH, "root", "vril-dump", NULL); 654 } 655 } 656 657 printf("========================================================\n"); 658 printf("== Android Framework Services\n"); 659 printf("========================================================\n"); 660 661 /* the full dumpsys is starting to take a long time, so we need 662 to increase its timeout. we really need to do the timeouts in 663 dumpsys itself... */ 664 run_command("DUMPSYS", 60, "dumpsys", NULL); 665 666 printf("========================================================\n"); 667 printf("== Checkins\n"); 668 printf("========================================================\n"); 669 670 run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "-c", NULL); 671 run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL); 672 run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL); 673 run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL); 674 run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL); 675 run_command("CHECKIN PACKAGE", 30, "dumpsys", "package", "--checkin", NULL); 676 677 printf("========================================================\n"); 678 printf("== Running Application Activities\n"); 679 printf("========================================================\n"); 680 681 run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL); 682 683 printf("========================================================\n"); 684 printf("== Running Application Services\n"); 685 printf("========================================================\n"); 686 687 run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL); 688 689 printf("========================================================\n"); 690 printf("== Running Application Providers\n"); 691 printf("========================================================\n"); 692 693 run_command("APP SERVICES", 30, "dumpsys", "activity", "provider", "all", NULL); 694 695 696 printf("========================================================\n"); 697 printf("== dumpstate: done\n"); 698 printf("========================================================\n"); 699} 700 701static void usage() { 702 fprintf(stderr, "usage: dumpstate [-b soundfile] [-e soundfile] [-o file [-d] [-p] [-z]] [-s] [-q]\n" 703 " -o: write to file (instead of stdout)\n" 704 " -d: append date to filename (requires -o)\n" 705 " -p: capture screenshot to filename.png (requires -o)\n" 706 " -s: write output to control socket (for init)\n" 707 " -b: play sound file instead of vibrate, at beginning of job\n" 708 " -e: play sound file instead of vibrate, at end of job\n" 709 " -q: disable vibrate\n" 710 " -B: send broadcast when finished (requires -o and -p)\n" 711 ); 712} 713 714static void sigpipe_handler(int n) { 715 // don't complain to stderr or stdout 716 _exit(EXIT_FAILURE); 717} 718 719static void vibrate(FILE* vibrator, int ms) { 720 fprintf(vibrator, "%d\n", ms); 721 fflush(vibrator); 722} 723 724int main(int argc, char *argv[]) { 725 struct sigaction sigact; 726 int do_add_date = 0; 727 int do_vibrate = 1; 728 char* use_outfile = 0; 729 int use_socket = 0; 730 int do_fb = 0; 731 int do_broadcast = 0; 732 733 if (getuid() != 0) { 734 // Old versions of the adb client would call the 735 // dumpstate command directly. Newer clients 736 // call /system/bin/bugreport instead. If we detect 737 // we're being called incorrectly, then exec the 738 // correct program. 739 return execl("/system/bin/bugreport", "/system/bin/bugreport", NULL); 740 } 741 742 ALOGI("begin\n"); 743 744 /* clear SIGPIPE handler */ 745 memset(&sigact, 0, sizeof(sigact)); 746 sigact.sa_handler = sigpipe_handler; 747 sigaction(SIGPIPE, &sigact, NULL); 748 749 /* set as high priority, and protect from OOM killer */ 750 setpriority(PRIO_PROCESS, 0, -20); 751 FILE *oom_adj = fopen("/proc/self/oom_adj", "we"); 752 if (oom_adj) { 753 fputs("-17", oom_adj); 754 fclose(oom_adj); 755 } 756 757 /* parse arguments */ 758 int c; 759 while ((c = getopt(argc, argv, "dho:svqzpB")) != -1) { 760 switch (c) { 761 case 'd': do_add_date = 1; break; 762 case 'o': use_outfile = optarg; break; 763 case 's': use_socket = 1; break; 764 case 'v': break; // compatibility no-op 765 case 'q': do_vibrate = 0; break; 766 case 'p': do_fb = 1; break; 767 case 'B': do_broadcast = 1; break; 768 case '?': printf("\n"); 769 case 'h': 770 usage(); 771 exit(1); 772 } 773 } 774 775 // If we are going to use a socket, do it as early as possible 776 // to avoid timeouts from bugreport. 777 if (use_socket) { 778 redirect_to_socket(stdout, "dumpstate"); 779 } 780 781 /* open the vibrator before dropping root */ 782 FILE *vibrator = 0; 783 if (do_vibrate) { 784 vibrator = fopen("/sys/class/timed_output/vibrator/enable", "we"); 785 if (vibrator) { 786 vibrate(vibrator, 150); 787 } 788 } 789 790 /* read /proc/cmdline before dropping root */ 791 FILE *cmdline = fopen("/proc/cmdline", "re"); 792 if (cmdline != NULL) { 793 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 794 fclose(cmdline); 795 } 796 797 /* collect stack traces from Dalvik and native processes (needs root) */ 798 dump_traces_path = dump_traces(); 799 800 /* Get the tombstone fds here while we are running as root. */ 801 get_tombstone_fds(tombstone_data); 802 803 /* ensure we will keep capabilities when we drop root */ 804 if (prctl(PR_SET_KEEPCAPS, 1) < 0) { 805 ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno)); 806 return -1; 807 } 808 809 /* switch to non-root user and group */ 810 gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW, 811 AID_MOUNT, AID_INET, AID_NET_BW_STATS, AID_READPROC }; 812 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 813 ALOGE("Unable to setgroups, aborting: %s\n", strerror(errno)); 814 return -1; 815 } 816 if (setgid(AID_SHELL) != 0) { 817 ALOGE("Unable to setgid, aborting: %s\n", strerror(errno)); 818 return -1; 819 } 820 if (setuid(AID_SHELL) != 0) { 821 ALOGE("Unable to setuid, aborting: %s\n", strerror(errno)); 822 return -1; 823 } 824 825 struct __user_cap_header_struct capheader; 826 struct __user_cap_data_struct capdata[2]; 827 memset(&capheader, 0, sizeof(capheader)); 828 memset(&capdata, 0, sizeof(capdata)); 829 capheader.version = _LINUX_CAPABILITY_VERSION_3; 830 capheader.pid = 0; 831 832 capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG); 833 capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG); 834 capdata[0].inheritable = 0; 835 capdata[1].inheritable = 0; 836 837 if (capset(&capheader, &capdata[0]) < 0) { 838 ALOGE("capset failed: %s\n", strerror(errno)); 839 return -1; 840 } 841 842 /* redirect output if needed */ 843 char path[PATH_MAX], tmp_path[PATH_MAX]; 844 pid_t gzip_pid = -1; 845 846 if (!use_socket && use_outfile) { 847 strlcpy(path, use_outfile, sizeof(path)); 848 if (do_add_date) { 849 char date[80]; 850 time_t now = time(NULL); 851 strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now)); 852 strlcat(path, date, sizeof(path)); 853 } 854 if (do_fb) { 855 strlcpy(screenshot_path, path, sizeof(screenshot_path)); 856 strlcat(screenshot_path, ".png", sizeof(screenshot_path)); 857 } 858 strlcat(path, ".txt", sizeof(path)); 859 strlcpy(tmp_path, path, sizeof(tmp_path)); 860 strlcat(tmp_path, ".tmp", sizeof(tmp_path)); 861 redirect_to_file(stdout, tmp_path); 862 } 863 864 dumpstate(); 865 866 /* done */ 867 if (vibrator) { 868 for (int i = 0; i < 3; i++) { 869 vibrate(vibrator, 75); 870 usleep((75 + 50) * 1000); 871 } 872 fclose(vibrator); 873 } 874 875 /* wait for gzip to finish, otherwise it might get killed when we exit */ 876 if (gzip_pid > 0) { 877 fclose(stdout); 878 waitpid(gzip_pid, NULL, 0); 879 } 880 881 /* rename the (now complete) .tmp file to its final location */ 882 if (use_outfile && rename(tmp_path, path)) { 883 fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno)); 884 } 885 886 /* tell activity manager we're done */ 887 if (do_broadcast && use_outfile && do_fb) { 888 run_command(NULL, 5, "/system/bin/am", "broadcast", "--user", "0", 889 "-a", "android.intent.action.BUGREPORT_FINISHED", 890 "--es", "android.intent.extra.BUGREPORT", path, 891 "--es", "android.intent.extra.SCREENSHOT", screenshot_path, 892 "--receiver-permission", "android.permission.DUMP", NULL); 893 } 894 895 ALOGI("done\n"); 896 897 return 0; 898} 899