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Report tombstone (native crash) data to the dropbox.

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Also uses a shared_prefs file to keep track of which files have been
logged, instead of polluting Settings.Secure with this data.
This commit is contained in:
Dan Egnor
2010-01-27 14:52:57 -08:00
parent ea11654e68
commit 492c6ed5b6
1 changed files with 56 additions and 28 deletions
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84
services/java/com/android/server/BootReceiver.java
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@@ -20,8 +20,10 @@ import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;
import android.os.DropBoxManager;
import android.os.FileObserver;
import android.os.FileUtils;
import android.os.RecoverySystem;
import android.os.SystemProperties;
@@ -38,10 +40,14 @@ import java.io.IOException;
public class BootReceiver extends BroadcastReceiver {
private static final String TAG = "BootReceiver";
// Negative meaning capture the *last* 64K of the file
// (passed to FileUtils.readTextFile)
// Negative to read the *last* 64K of the file (per FileUtils.readTextFile)
private static final int LOG_SIZE = -65536;
private static final File TOMBSTONE_DIR = new File("/data/tombstones");
// Keep a reference to the observer so the finalizer doesn't disable it.
private static FileObserver sTombstoneObserver = null;
@Override
public void onReceive(Context context, Intent intent) {
try {
@@ -68,49 +74,71 @@ public class BootReceiver extends BroadcastReceiver {
}
}
private void logBootEvents(Context context) throws IOException {
DropBoxManager db = (DropBoxManager) context.getSystemService(Context.DROPBOX_SERVICE);
private void logBootEvents(Context ctx) throws IOException {
final DropBoxManager db = (DropBoxManager) ctx.getSystemService(Context.DROPBOX_SERVICE);
final SharedPreferences prefs = ctx.getSharedPreferences("log_files", Context.MODE_PRIVATE);
final String props = new StringBuilder()
.append("Build: ").append(Build.FINGERPRINT).append("\n")
.append("Hardware: ").append(Build.BOARD).append("\n")
.append("Bootloader: ").append(Build.BOOTLOADER).append("\n")
.append("Radio: ").append(Build.RADIO).append("\n")
.append("Kernel: ")
.append(FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n"))
.toString();
StringBuilder props = new StringBuilder();
props.append("Build: ").append(Build.FINGERPRINT).append("\n");
props.append("Hardware: ").append(Build.BOARD).append("\n");
props.append("Bootloader: ").append(Build.BOOTLOADER).append("\n");
props.append("Radio: ").append(Build.RADIO).append("\n");
props.append("Kernel: ");
props.append(FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n"));
if (db == null || prefs == null) return;
if (SystemProperties.getLong("ro.runtime.firstboot", 0) == 0) {
String now = Long.toString(System.currentTimeMillis());
SystemProperties.set("ro.runtime.firstboot", now);
if (db != null) db.addText("SYSTEM_BOOT", props.toString());
db.addText("SYSTEM_BOOT", props);
addFileToDropBox(db, prefs, props, "/proc/last_kmsg", "SYSTEM_LAST_KMSG");
addFileToDropBox(db, prefs, props, "/cache/recovery/log", "SYSTEM_RECOVERY_LOG");
addFileToDropBox(db, prefs, props, "/data/dontpanic/apanic_console", "APANIC_CONSOLE");
addFileToDropBox(db, prefs, props, "/data/dontpanic/apanic_threads", "APANIC_THREADS");
} else {
if (db != null) db.addText("SYSTEM_RESTART", props.toString());
return; // Subsequent boot, don't log kernel boot log
db.addText("SYSTEM_RESTART", props);
}
ContentResolver cr = context.getContentResolver();
logBootFile(cr, db, props, "/cache/recovery/log", "SYSTEM_RECOVERY_LOG");
logBootFile(cr, db, props, "/proc/last_kmsg", "SYSTEM_LAST_KMSG");
logBootFile(cr, db, props, "/data/dontpanic/apanic_console", "APANIC_CONSOLE");
logBootFile(cr, db, props, "/data/dontpanic/apanic_threads", "APANIC_THREADS");
// Scan existing tombstones (in case any new ones appeared)
File[] tombstoneFiles = TOMBSTONE_DIR.listFiles();
for (int i = 0; tombstoneFiles != null && i < tombstoneFiles.length; i++) {
addFileToDropBox(db, prefs, props, tombstoneFiles[i].getPath(), "SYSTEM_TOMBSTONE");
}
// Start watching for new tombstone files; will record them as they occur.
// This gets registered with the singleton file observer thread.
sTombstoneObserver = new FileObserver(TOMBSTONE_DIR.getPath(), FileObserver.CLOSE_WRITE) {
@Override
public void onEvent(int event, String path) {
try {
String filename = new File(TOMBSTONE_DIR, path).getPath();
addFileToDropBox(db, prefs, props, filename, "SYSTEM_TOMBSTONE");
} catch (IOException e) {
Log.e(TAG, "Can't log tombstone", e);
}
}
};
sTombstoneObserver.startWatching();
}
private void logBootFile(ContentResolver cr, DropBoxManager db,
CharSequence headers, String filename, String tag) throws IOException {
if (cr == null || db == null || !db.isTagEnabled(tag)) return; // Logging disabled
private static void addFileToDropBox(
DropBoxManager db, SharedPreferences prefs,
String headers, String filename, String tag) throws IOException {
if (!db.isTagEnabled(tag)) return; // Logging disabled
File file = new File(filename);
long fileTime = file.lastModified();
if (fileTime <= 0) return; // File does not exist
String setting = "logfile:" + filename;
long lastTime = Settings.Secure.getLong(cr, setting, 0);
long lastTime = prefs.getLong(filename, 0);
if (lastTime == fileTime) return; // Already logged this particular file
Settings.Secure.putLong(cr, setting, fileTime);
prefs.edit().putLong(filename, fileTime).commit();
StringBuilder report = new StringBuilder(headers);
report.append("\n");
report.append(FileUtils.readTextFile(new File(filename), LOG_SIZE, "[[TRUNCATED]]\n"));
StringBuilder report = new StringBuilder(headers).append("\n");
report.append(FileUtils.readTextFile(file, LOG_SIZE, "[[TRUNCATED]]\n"));
db.addText(tag, report.toString());
Log.i(TAG, "Logging " + filename + " to DropBox (" + tag + ")");
}
}