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 <errno.h> 18#include <fcntl.h> 19#include <limits.h> 20#include <stdio.h> 21#include <stdlib.h> 22#include <string.h> 23#include <sys/resource.h> 24#include <sys/stat.h> 25#include <sys/time.h> 26#include <sys/wait.h> 27#include <unistd.h> 28 29#include <cutils/properties.h> 30 31#include "private/android_filesystem_config.h" 32 33#define LOG_TAG "dumpstate" 34#include <utils/Log.h> 35 36#include "dumpstate.h" 37 38/* read before root is shed */ 39static char cmdline_buf[16384] = "(unknown)"; 40static const char *dump_traces_path = NULL; 41 42/* dumps the current system state to stdout */ 43static void dumpstate() { 44 time_t now = time(NULL); 45 char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX]; 46 char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX]; 47 char network[PROPERTY_VALUE_MAX], date[80]; 48 49 property_get("ro.build.display.id", build, "(unknown)"); 50 property_get("ro.build.fingerprint", fingerprint, "(unknown)"); 51 property_get("ro.baseband", radio, "(unknown)"); 52 property_get("ro.bootloader", bootloader, "(unknown)"); 53 property_get("gsm.operator.alpha", network, "(unknown)"); 54 strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now)); 55 56 printf("========================================================\n"); 57 printf("== dumpstate: %s\n", date); 58 printf("========================================================\n"); 59 60 printf("\n"); 61 printf("Build: %s\n", build); 62 printf("Bootloader: %s\n", bootloader); 63 printf("Radio: %s\n", radio); 64 printf("Network: %s\n", network); 65 66 printf("Kernel: "); 67 dump_file(NULL, "/proc/version"); 68 printf("Command line: %s\n", strtok(cmdline_buf, "\n")); 69 printf("\n"); 70 71 dump_file("MEMORY INFO", "/proc/meminfo"); 72 run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL); 73 run_command("PROCRANK", 20, "procrank", NULL); 74 dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat"); 75 dump_file("VMALLOC INFO", "/proc/vmallocinfo"); 76 dump_file("SLAB INFO", "/proc/slabinfo"); 77 dump_file("ZONEINFO", "/proc/zoneinfo"); 78 79 run_command("SYSTEM LOG", 20, "logcat", "-v", "time", "-d", "*:v", NULL); 80 81 /* show the traces we collected in main(), if that was done */ 82 if (dump_traces_path != NULL) { 83 dump_file("VM TRACES JUST NOW", dump_traces_path); 84 } 85 86 /* only show ANR traces if they're less than 15 minutes old */ 87 struct stat st; 88 char anr_traces_path[PATH_MAX]; 89 property_get("dalvik.vm.stack-trace-file", anr_traces_path, ""); 90 if (!anr_traces_path[0]) { 91 printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n"); 92 } else if (stat(anr_traces_path, &st)) { 93 printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno)); 94 } else { 95 dump_file("VM TRACES AT LAST ANR", anr_traces_path); 96 } 97 98 // dump_file("EVENT LOG TAGS", "/etc/event-log-tags"); 99 run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "time", "-d", "*:v", NULL); 100 run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "time", "-d", "*:v", NULL); 101 102 run_command("NETWORK INTERFACES", 10, "netcfg", NULL); 103 dump_file("NETWORK ROUTES", "/proc/net/route"); 104 dump_file("ARP CACHE", "/proc/net/arp"); 105 106#ifdef FWDUMP_bcm4329 107 run_command("DUMP WIFI FIRMWARE LOG", 60, 108 "su", "root", "dhdutil", "-i", "eth0", "upload", "/data/local/tmp/wlan_crash.dump", NULL); 109#endif 110 111 print_properties(); 112 113 run_command("KERNEL LOG", 20, "dmesg", NULL); 114 115 dump_file("KERNEL WAKELOCKS", "/proc/wakelocks"); 116 dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state"); 117 118 run_command("VOLD DUMP", 10, "vdc", "dump", NULL); 119 run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL); 120 121 run_command("PROCESSES", 10, "ps", "-P", NULL); 122 run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL); 123 run_command("LIBRANK", 10, "librank", NULL); 124 125 dump_file("BINDER FAILED TRANSACTION LOG", "/proc/binder/failed_transaction_log"); 126 dump_file("BINDER TRANSACTION LOG", "/proc/binder/transaction_log"); 127 dump_file("BINDER TRANSACTIONS", "/proc/binder/transactions"); 128 dump_file("BINDER STATS", "/proc/binder/stats"); 129 run_command("BINDER PROCESS STATE", 10, "sh", "-c", "cat /proc/binder/proc/*"); 130 131 run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL); 132 133 dump_file("PACKAGE SETTINGS", "/data/system/packages.xml"); 134 dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt"); 135 136 dump_file("LAST KMSG", "/proc/last_kmsg"); 137 run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL); 138 dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console"); 139 dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads"); 140 141 for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS"); 142 143 printf("------ BACKLIGHTS ------\n"); 144 printf("LCD brightness="); 145 dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness"); 146 printf("Button brightness="); 147 dump_file(NULL, "/sys/class/leds/button-backlight/brightness"); 148 printf("Keyboard brightness="); 149 dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness"); 150 printf("ALS mode="); 151 dump_file(NULL, "/sys/class/leds/lcd-backlight/als"); 152 printf("LCD driver registers:\n"); 153 dump_file(NULL, "/sys/class/leds/lcd-backlight/registers"); 154 printf("\n"); 155 156 printf("========================================================\n"); 157 printf("== Android Framework Services\n"); 158 printf("========================================================\n"); 159 160 /* the full dumpsys is starting to take a long time, so we need 161 to increase its timeout. we really need to do the timeouts in 162 dumpsys itself... */ 163 run_command("DUMPSYS", 60, "dumpsys", NULL); 164} 165 166static void usage() { 167 fprintf(stderr, "usage: dumpstate [-d] [-o file] [-s] [-z]\n" 168 " -d: append date to filename (requires -o)\n" 169 " -o: write to file (instead of stdout)\n" 170 " -s: write output to control socket (for init)\n" 171 " -z: gzip output (requires -o)\n"); 172} 173 174int main(int argc, char *argv[]) { 175 int do_add_date = 0; 176 int do_compress = 0; 177 char* use_outfile = 0; 178 int use_socket = 0; 179 180 LOGI("begin\n"); 181 182 /* set as high priority, and protect from OOM killer */ 183 setpriority(PRIO_PROCESS, 0, -20); 184 FILE *oom_adj = fopen("/proc/self/oom_adj", "w"); 185 if (oom_adj) { 186 fputs("-17", oom_adj); 187 fclose(oom_adj); 188 } 189 190 /* very first thing, collect VM traces from Dalvik (needs root) */ 191 dump_traces_path = dump_vm_traces(); 192 193 int c; 194 while ((c = getopt(argc, argv, "dho:svz")) != -1) { 195 switch (c) { 196 case 'd': do_add_date = 1; break; 197 case 'o': use_outfile = optarg; break; 198 case 's': use_socket = 1; break; 199 case 'v': break; // compatibility no-op 200 case 'z': do_compress = 6; break; 201 case '?': printf("\n"); 202 case 'h': 203 usage(); 204 exit(1); 205 } 206 } 207 208 /* open the vibrator before dropping root */ 209 FILE *vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w"); 210 if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC); 211 212 /* read /proc/cmdline before dropping root */ 213 FILE *cmdline = fopen("/proc/cmdline", "r"); 214 if (cmdline != NULL) { 215 fgets(cmdline_buf, sizeof(cmdline_buf), cmdline); 216 fclose(cmdline); 217 } 218 219 /* switch to non-root user and group */ 220 gid_t groups[] = { AID_LOG, AID_SDCARD_RW, AID_MOUNT }; 221 setgroups(sizeof(groups)/sizeof(groups[0]), groups); 222 setuid(AID_SHELL); 223 224 char path[PATH_MAX], tmp_path[PATH_MAX]; 225 pid_t gzip_pid = -1; 226 227 if (use_socket) { 228 redirect_to_socket(stdout, "dumpstate"); 229 } else if (use_outfile) { 230 strlcpy(path, use_outfile, sizeof(path)); 231 if (do_add_date) { 232 char date[80]; 233 time_t now = time(NULL); 234 strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now)); 235 strlcat(path, date, sizeof(path)); 236 } 237 strlcat(path, ".txt", sizeof(path)); 238 if (do_compress) strlcat(path, ".gz", sizeof(path)); 239 strlcpy(tmp_path, path, sizeof(tmp_path)); 240 strlcat(tmp_path, ".tmp", sizeof(tmp_path)); 241 gzip_pid = redirect_to_file(stdout, tmp_path, do_compress); 242 } 243 244 /* bzzzzzz */ 245 if (vibrator) { 246 fputs("150", vibrator); 247 fflush(vibrator); 248 } 249 250 dumpstate(); 251 252 /* bzzz bzzz bzzz */ 253 if (vibrator) { 254 int i; 255 for (i = 0; i < 3; i++) { 256 fputs("75\n", vibrator); 257 fflush(vibrator); 258 usleep((75 + 50) * 1000); 259 } 260 fclose(vibrator); 261 } 262 263 /* wait for gzip to finish, otherwise it might get killed when we exit */ 264 if (gzip_pid > 0) { 265 fclose(stdout); 266 waitpid(gzip_pid, NULL, 0); 267 } 268 269 /* rename the (now complete) .tmp file to its final location */ 270 if (use_outfile && rename(tmp_path, path)) { 271 fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno)); 272 } 273 274 LOGI("done\n"); 275 276 return 0; 277} 278