1 files changed, 80 insertions, 0 deletions
diff --git a/tools/preload/loadclass/LoadClass.java b/tools/preload/loadclass/LoadClass.java
new file mode 100644
index 0000000..471cc84
--- /dev/null
+++ b/tools/preload/loadclass/LoadClass.java
@@ -0,0 +1,80 @@
+/*
+ * 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.
+ */
+
+import android.util.Log;
+import android.os.Debug;
+
+/**
+ * Loads a class, runs the garbage collector, and prints showmap output.
+ *
+ * <p>Usage: dalvikvm LoadClass [class name]
+ */
+class LoadClass {
+
+    public static void main(String[] args) {
+        System.loadLibrary("android_runtime");
+
+        if (registerNatives() < 0) {
+            throw new RuntimeException("Error registering natives.");    
+        }
+
+        Debug.startAllocCounting();
+
+        if (args.length > 0) {
+            try {
+                Class.forName(args[0]);
+            } catch (ClassNotFoundException e) {
+                Log.w("LoadClass", e);
+                return;
+            }
+        }
+
+        System.gc();
+
+        int allocCount = Debug.getGlobalAllocCount();
+        int allocSize = Debug.getGlobalAllocSize();
+        int freedCount = Debug.getGlobalFreedCount();
+        int freedSize = Debug.getGlobalFreedSize();
+        long nativeHeapSize = Debug.getNativeHeapSize();
+
+        Debug.stopAllocCounting();
+
+        StringBuilder response = new StringBuilder("DECAFBAD");
+
+        int[] pages = new int[6];
+        Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
+        Debug.getMemoryInfo(memoryInfo);
+        response.append(',').append(memoryInfo.nativeSharedDirty);
+        response.append(',').append(memoryInfo.dalvikSharedDirty);
+        response.append(',').append(memoryInfo.otherSharedDirty);
+        response.append(',').append(memoryInfo.nativePrivateDirty);
+        response.append(',').append(memoryInfo.dalvikPrivateDirty);
+        response.append(',').append(memoryInfo.otherPrivateDirty);
+
+        response.append(',').append(allocCount);
+        response.append(',').append(allocSize);
+        response.append(',').append(freedCount);
+        response.append(',').append(freedSize);
+        response.append(',').append(nativeHeapSize);
+        
+        System.out.println(response.toString());
+    }
+
+    /**
+     * Registers native functions. See AndroidRuntime.cpp.
+     */
+    static native int registerNatives();
+}