42471dd555
Eliminate the per-process 200ms timeout during ANR thread-dumping. Dump all the threads at once, then wait for the file to stabilize. Seems to work great and is much, much, much faster. Don't dump stack traces to traces.txt on app crashes (it isn't very useful and mostly just clutters up the file). Tweak the formatting of the dropbox dumpsys a bit, for readability, and avoid running out of memory when dumping large log files. Report build & kernel version with kernel log dropbox entries.
119 lines
4.7 KiB
Java
119 lines
4.7 KiB
Java
/*
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* Copyright (C) 2009 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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package com.android.server;
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import android.content.BroadcastReceiver;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Build;
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import android.os.DropBoxManager;
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import android.os.FileUtils;
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import android.os.RecoverySystem;
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import android.os.SystemProperties;
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import android.provider.Settings;
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import android.util.Log;
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import java.io.File;
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import java.io.IOException;
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/**
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* Performs a number of miscellaneous, non-system-critical actions
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* after the system has finished booting.
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*/
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public class BootReceiver extends BroadcastReceiver {
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private static final String TAG = "BootReceiver";
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// Negative meaning capture the *last* 64K of the file
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// (passed to FileUtils.readTextFile)
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private static final int LOG_SIZE = -65536;
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@Override
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public void onReceive(Context context, Intent intent) {
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try {
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logBootEvents(context);
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} catch (Exception e) {
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Log.e(TAG, "Can't log boot events", e);
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}
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try {
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RecoverySystem.handleAftermath();
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} catch (Exception e) {
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Log.e(TAG, "Can't handle recovery aftermath", e);
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}
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try {
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// Start the load average overlay, if activated
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ContentResolver res = context.getContentResolver();
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if (Settings.System.getInt(res, Settings.System.SHOW_PROCESSES, 0) != 0) {
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Intent loadavg = new Intent(context, com.android.server.LoadAverageService.class);
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context.startService(loadavg);
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}
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} catch (Exception e) {
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Log.e(TAG, "Can't start load average service", e);
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}
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}
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private void logBootEvents(Context context) throws IOException {
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DropBoxManager db = (DropBoxManager) context.getSystemService(Context.DROPBOX_SERVICE);
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StringBuilder props = new StringBuilder();
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props.append("Build: ").append(Build.FINGERPRINT).append("\n");
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props.append("Hardware: ").append(Build.BOARD).append("\n");
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props.append("Bootloader: ").append(Build.BOOTLOADER).append("\n");
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props.append("Radio: ").append(Build.RADIO).append("\n");
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props.append("Kernel: ");
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props.append(FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n"));
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if (SystemProperties.getLong("ro.runtime.firstboot", 0) == 0) {
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String now = Long.toString(System.currentTimeMillis());
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SystemProperties.set("ro.runtime.firstboot", now);
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if (db != null) db.addText("SYSTEM_BOOT", props.toString());
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} else {
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if (db != null) db.addText("SYSTEM_RESTART", props.toString());
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return; // Subsequent boot, don't log kernel boot log
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}
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ContentResolver cr = context.getContentResolver();
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logBootFile(cr, db, "/cache/recovery/log", "SYSTEM_RECOVERY_LOG");
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logBootFile(cr, db, "/proc/last_kmsg", "SYSTEM_LAST_KMSG");
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logBootFile(cr, db, "/data/dontpanic/apanic_console", "APANIC_CONSOLE");
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logBootFile(cr, db, "/data/dontpanic/apanic_threads", "APANIC_THREADS");
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}
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private void logBootFile(ContentResolver cr, DropBoxManager db, String filename, String tag)
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throws IOException {
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if (cr == null || db == null || !db.isTagEnabled(tag)) return; // Logging disabled
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File file = new File(filename);
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long fileTime = file.lastModified();
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if (fileTime <= 0) return; // File does not exist
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String setting = "logfile:" + filename;
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long lastTime = Settings.Secure.getLong(cr, setting, 0);
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if (lastTime == fileTime) return; // Already logged this particular file
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Settings.Secure.putLong(cr, setting, fileTime);
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StringBuilder report = new StringBuilder();
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report.append("Build: ").append(Build.FINGERPRINT).append("\n");
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report.append("Kernel: ");
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report.append(FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n"));
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report.append(FileUtils.readTextFile(new File(filename), LOG_SIZE, "[[TRUNCATED]]\n"));
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db.addText(tag, report.toString());
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}
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}
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