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Commit 289e5805 authored by Dan Egnor's avatar Dan Egnor
Browse files

Truncate SYSTEM_TOMBSTONE events at the end (take the head), 

but still truncate the other log files at the start (take the tail).
parent 18e93962

services/java/com/android/server/BootReceiver.java

+17 −10
Original line number Diff line number Diff line
@@ -40,8 +40,8 @@ import java.io.IOException; 
public class BootReceiver extends BroadcastReceiver {

    private static final String TAG = "BootReceiver";



    // Negative to read the *last* 64K of the file (per FileUtils.readTextFile)

    private static final int LOG_SIZE = -65536;

    // Maximum size of a logged event (files get truncated if they're longer)

    private static final int LOG_SIZE = 65536;



    private static final File TOMBSTONE_DIR = new File("/data/tombstones");
@@ -92,10 +92,16 @@ public class BootReceiver extends BroadcastReceiver { 
            String now = Long.toString(System.currentTimeMillis());

            SystemProperties.set("ro.runtime.firstboot", now);

            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");



            // Negative sizes mean to take the *tail* of the file (see FileUtils.readTextFile())

            addFileToDropBox(db, prefs, props, "/proc/last_kmsg",

                    -LOG_SIZE, "SYSTEM_LAST_KMSG");

            addFileToDropBox(db, prefs, props, "/cache/recovery/log",

                    -LOG_SIZE, "SYSTEM_RECOVERY_LOG");

            addFileToDropBox(db, prefs, props, "/data/dontpanic/apanic_console",

                    -LOG_SIZE, "APANIC_CONSOLE");

            addFileToDropBox(db, prefs, props, "/data/dontpanic/apanic_threads",

                    -LOG_SIZE, "APANIC_THREADS");

        } else {

            db.addText("SYSTEM_RESTART", props);

        }
@@ -103,7 +109,8 @@ public class BootReceiver extends BroadcastReceiver { 
        // 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");

            addFileToDropBox(db, prefs, props, tombstoneFiles[i].getPath(),

                    LOG_SIZE, "SYSTEM_TOMBSTONE");

        }



        // Start watching for new tombstone files; will record them as they occur.
@@ -113,7 +120,7 @@ public class BootReceiver extends BroadcastReceiver { 
            public void onEvent(int event, String path) {

                try {

                    String filename = new File(TOMBSTONE_DIR, path).getPath();

                    addFileToDropBox(db, prefs, props, filename, "SYSTEM_TOMBSTONE");

                    addFileToDropBox(db, prefs, props, filename, LOG_SIZE, "SYSTEM_TOMBSTONE");

                } catch (IOException e) {

                    Log.e(TAG, "Can't log tombstone", e);

                }
@@ -125,7 +132,7 @@ public class BootReceiver extends BroadcastReceiver { 


    private static void addFileToDropBox(

            DropBoxManager db, SharedPreferences prefs,

            String headers, String filename, String tag) throws IOException {

            String headers, String filename, int maxSize, String tag) throws IOException {

        if (!db.isTagEnabled(tag)) return;  // Logging disabled



        File file = new File(filename);
@@ -137,7 +144,7 @@ public class BootReceiver extends BroadcastReceiver { 
        prefs.edit().putLong(filename, fileTime).commit();



        StringBuilder report = new StringBuilder(headers).append("\n");

        report.append(FileUtils.readTextFile(file, LOG_SIZE, "[[TRUNCATED]]\n"));

        report.append(FileUtils.readTextFile(file, maxSize, "[[TRUNCATED]]\n"));

        db.addText(tag, report.toString());

        Log.i(TAG, "Logging " + filename + " to DropBox (" + tag + ")");

    }