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 */
39 static char cmdline_buf[16384] = "(unknown)";
40 static const char *dump_traces_path = NULL;
41
42 /* dumps the current system state to stdout */
dumpstate()43 static 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", "/sys/kernel/debug/binder/failed_transaction_log");
126 dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
127 dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
128 dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
129 dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");
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
usage()166 static 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
main(int argc,char * argv[])174 int 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 if (getuid() == 0) {
220 /* switch to non-root user and group */
221 gid_t groups[] = { AID_LOG, AID_SDCARD_RW, AID_MOUNT };
222 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
223 LOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
224 return -1;
225 }
226 if (setgid(AID_SHELL) != 0) {
227 LOGE("Unable to setgid, aborting: %s\n", strerror(errno));
228 return -1;
229 }
230 if (setuid(AID_SHELL) != 0) {
231 LOGE("Unable to setuid, aborting: %s\n", strerror(errno));
232 return -1;
233 }
234 }
235
236 char path[PATH_MAX], tmp_path[PATH_MAX];
237 pid_t gzip_pid = -1;
238
239 if (use_socket) {
240 redirect_to_socket(stdout, "dumpstate");
241 } else if (use_outfile) {
242 strlcpy(path, use_outfile, sizeof(path));
243 if (do_add_date) {
244 char date[80];
245 time_t now = time(NULL);
246 strftime(date, sizeof(date), "-%Y-%m-%d-%H-%M-%S", localtime(&now));
247 strlcat(path, date, sizeof(path));
248 }
249 strlcat(path, ".txt", sizeof(path));
250 if (do_compress) strlcat(path, ".gz", sizeof(path));
251 strlcpy(tmp_path, path, sizeof(tmp_path));
252 strlcat(tmp_path, ".tmp", sizeof(tmp_path));
253 gzip_pid = redirect_to_file(stdout, tmp_path, do_compress);
254 }
255
256 /* bzzzzzz */
257 if (vibrator) {
258 fputs("150", vibrator);
259 fflush(vibrator);
260 }
261
262 dumpstate();
263
264 /* bzzz bzzz bzzz */
265 if (vibrator) {
266 int i;
267 for (i = 0; i < 3; i++) {
268 fputs("75\n", vibrator);
269 fflush(vibrator);
270 usleep((75 + 50) * 1000);
271 }
272 fclose(vibrator);
273 }
274
275 /* wait for gzip to finish, otherwise it might get killed when we exit */
276 if (gzip_pid > 0) {
277 fclose(stdout);
278 waitpid(gzip_pid, NULL, 0);
279 }
280
281 /* rename the (now complete) .tmp file to its final location */
282 if (use_outfile && rename(tmp_path, path)) {
283 fprintf(stderr, "rename(%s, %s): %s\n", tmp_path, path, strerror(errno));
284 }
285
286 LOGI("done\n");
287
288 return 0;
289 }
290