290 lines
10 KiB
C
290 lines
10 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <cutils/properties.h>
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#include "private/android_filesystem_config.h"
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#define LOG_TAG "dumpstate"
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#include <utils/Log.h>
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#include "dumpstate.h"
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/* read before root is shed */
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static char cmdline_buf[16384] = "(unknown)";
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static const char *dump_traces_path = NULL;
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/* dumps the current system state to stdout */
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static void dumpstate() {
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time_t now = time(NULL);
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char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
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char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
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char network[PROPERTY_VALUE_MAX], date[80];
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property_get("ro.build.display.id", build, "(unknown)");
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property_get("ro.build.fingerprint", fingerprint, "(unknown)");
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property_get("ro.baseband", radio, "(unknown)");
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property_get("ro.bootloader", bootloader, "(unknown)");
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property_get("gsm.operator.alpha", network, "(unknown)");
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strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));
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printf("========================================================\n");
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printf("== dumpstate: %s\n", date);
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printf("========================================================\n");
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printf("\n");
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printf("Build: %s\n", build);
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printf("Bootloader: %s\n", bootloader);
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printf("Radio: %s\n", radio);
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printf("Network: %s\n", network);
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printf("Kernel: ");
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dump_file(NULL, "/proc/version");
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printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
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printf("\n");
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dump_file("MEMORY INFO", "/proc/meminfo");
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run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
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run_command("PROCRANK", 20, "procrank", NULL);
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dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
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dump_file("VMALLOC INFO", "/proc/vmallocinfo");
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dump_file("SLAB INFO", "/proc/slabinfo");
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dump_file("ZONEINFO", "/proc/zoneinfo");
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run_command("SYSTEM LOG", 20, "logcat", "-v", "time", "-d", "*:v", NULL);
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/* show the traces we collected in main(), if that was done */
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if (dump_traces_path != NULL) {
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dump_file("VM TRACES JUST NOW", dump_traces_path);
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}
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/* only show ANR traces if they're less than 15 minutes old */
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struct stat st;
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char anr_traces_path[PATH_MAX];
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property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
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if (!anr_traces_path[0]) {
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printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
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} else if (stat(anr_traces_path, &st)) {
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printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
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} else {
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dump_file("VM TRACES AT LAST ANR", anr_traces_path);
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}
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// dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
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run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "time", "-d", "*:v", NULL);
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run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "time", "-d", "*:v", NULL);
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run_command("NETWORK INTERFACES", 10, "netcfg", NULL);
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dump_file("NETWORK ROUTES", "/proc/net/route");
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dump_file("ARP CACHE", "/proc/net/arp");
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#ifdef FWDUMP_bcm4329
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run_command("DUMP WIFI FIRMWARE LOG", 60,
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"su", "root", "dhdutil", "-i", "eth0", "upload", "/data/local/tmp/wlan_crash.dump", NULL);
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#endif
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print_properties();
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run_command("KERNEL LOG", 20, "dmesg", NULL);
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dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
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dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
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run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
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run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);
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run_command("PROCESSES", 10, "ps", "-P", NULL);
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run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
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run_command("LIBRANK", 10, "librank", NULL);
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dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
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dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
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dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
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dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
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dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");
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run_command("FILESYSTEMS & FREE SPACE", 10, "df", NULL);
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dump_file("PACKAGE SETTINGS", "/data/system/packages.xml");
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dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt");
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dump_file("LAST KMSG", "/proc/last_kmsg");
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run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
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dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console");
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dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads");
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for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");
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printf("------ BACKLIGHTS ------\n");
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printf("LCD brightness=");
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dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
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printf("Button brightness=");
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dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
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printf("Keyboard brightness=");
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dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
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printf("ALS mode=");
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dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
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printf("LCD driver registers:\n");
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dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
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printf("\n");
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printf("========================================================\n");
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printf("== Android Framework Services\n");
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printf("========================================================\n");
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/* the full dumpsys is starting to take a long time, so we need
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to increase its timeout. we really need to do the timeouts in
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dumpsys itself... */
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run_command("DUMPSYS", 60, "dumpsys", NULL);
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}
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static void usage() {
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fprintf(stderr, "usage: dumpstate [-d] [-o file] [-s] [-z]\n"
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" -d: append date to filename (requires -o)\n"
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" -o: write to file (instead of stdout)\n"
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" -s: write output to control socket (for init)\n"
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" -z: gzip output (requires -o)\n");
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}
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int main(int argc, char *argv[]) {
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int do_add_date = 0;
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int do_compress = 0;
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char* use_outfile = 0;
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int use_socket = 0;
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LOGI("begin\n");
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/* set as high priority, and protect from OOM killer */
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setpriority(PRIO_PROCESS, 0, -20);
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FILE *oom_adj = fopen("/proc/self/oom_adj", "w");
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if (oom_adj) {
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fputs("-17", oom_adj);
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fclose(oom_adj);
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}
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/* very first thing, collect VM traces from Dalvik (needs root) */
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dump_traces_path = dump_vm_traces();
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int c;
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while ((c = getopt(argc, argv, "dho:svz")) != -1) {
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switch (c) {
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case 'd': do_add_date = 1; break;
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case 'o': use_outfile = optarg; break;
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case 's': use_socket = 1; break;
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case 'v': break; // compatibility no-op
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case 'z': do_compress = 6; break;
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case '?': printf("\n");
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case 'h':
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usage();
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exit(1);
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}
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}
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/* open the vibrator before dropping root */
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FILE *vibrator = fopen("/sys/class/timed_output/vibrator/enable", "w");
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if (vibrator) fcntl(fileno(vibrator), F_SETFD, FD_CLOEXEC);
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/* read /proc/cmdline before dropping root */
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FILE *cmdline = fopen("/proc/cmdline", "r");
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if (cmdline != NULL) {
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fgets(cmdline_buf, sizeof(cmdline_buf), cmdline);
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fclose(cmdline);
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}
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if (getuid() == 0) {
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/* switch to non-root user and group */
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gid_t groups[] = { AID_LOG, AID_SDCARD_RW, AID_MOUNT };
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if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
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LOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
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return -1;
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}
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if (setgid(AID_SHELL) != 0) {
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LOGE("Unable to setgid, aborting: %s\n", strerror(errno));
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return -1;
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}
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if (setuid(AID_SHELL) != 0) {
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LOGE("Unable to setuid, aborting: %s\n", strerror(errno));
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return -1;
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}
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}
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char path[PATH_MAX], tmp_path[PATH_MAX];
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pid_t gzip_pid = -1;
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if (use_socket) {
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redirect_to_socket(stdout, "dumpstate");
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} else if (use_outfile) {
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strlcpy(path, use_outfile, sizeof(path));
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if (do_add_date) {
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char date[80];
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time_t now = time(NULL);
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strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
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strlcat(path, date, sizeof(path));
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}
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strlcat(path, ".txt", sizeof(path));
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if (do_compress) strlcat(path, ".gz", sizeof(path));
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strlcpy(tmp_path, path, sizeof(tmp_path));
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strlcat(tmp_path, ".tmp", sizeof(tmp_path));
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gzip_pid = redirect_to_file(stdout, tmp_path, do_compress);
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}
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/* bzzzzzz */
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if (vibrator) {
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fputs("150", vibrator);
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fflush(vibrator);
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}
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dumpstate();
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/* bzzz bzzz bzzz */
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if (vibrator) {
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int i;
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for (i = 0; i < 3; i++) {
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fputs("75\n", vibrator);
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fflush(vibrator);
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usleep((75 + 50) * 1000);
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}
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fclose(vibrator);
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}
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/* wait for gzip to finish, otherwise it might get killed when we exit */
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if (gzip_pid > 0) {
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fclose(stdout);
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waitpid(gzip_pid, NULL, 0);
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}
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/* rename the (now complete) .tmp file to its final location */
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if (use_outfile && rename(tmp_path, path)) {
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fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
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}
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LOGI("done\n");
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return 0;
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}
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