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