AArch64: Make Binder and Parcel 64-bit compatible

Changes include
[x] Long is used to store native pointers

[x] Added new method obtain(long obj) to Parcel. Binder
    uses this method instead of obtain(int obj).

[x] obtain(int) has been changed to throw unsupported
    operation exception.

Change-Id: I408e0f2a24deb28c9277d86670653a51eb314266
Signed-off-by: Ashok Bhat <ashok.bhat@arm.com>
Signed-off-by: Craig Barber <craig.barber@arm.com>
Signed-off-by: Kévin PETIT <kevin.petit@arm.com>

2 files changed, 51 insertions, 46 deletions

diff --git a/core/java/android/os/Binder.java b/core/java/android/os/Binder.java
index f4a8391..ba71605 100644
--- a/core/java/android/os/Binder.java
+++ b/core/java/android/os/Binder.java
@@ -56,7 +56,7 @@ public class Binder implements IBinder {
     private static String sDumpDisabled = null;
 
     /* mObject is used by native code, do not remove or rename */
-    private int mObject;
+    private long mObject;
     private IInterface mOwner;
     private String mDescriptor;
     
@@ -390,7 +390,7 @@ public class Binder implements IBinder {
     private native final void destroy();
 
     // Entry point from android_util_Binder.cpp's onTransact
-    private boolean execTransact(int code, int dataObj, int replyObj,
+    private boolean execTransact(int code, long dataObj, long replyObj,
             int flags) {
         Parcel data = Parcel.obtain(dataObj);
         Parcel reply = Parcel.obtain(replyObj);
@@ -499,6 +499,6 @@ final class BinderProxy implements IBinder {
     }
     
     final private WeakReference mSelf;
-    private int mObject;
-    private int mOrgue;
+    private long mObject;
+    private long mOrgue;
 }
diff --git a/core/java/android/os/Parcel.java b/core/java/android/os/Parcel.java
index 94b9617..6716098 100644
--- a/core/java/android/os/Parcel.java
+++ b/core/java/android/os/Parcel.java
@@ -182,7 +182,7 @@ public final class Parcel {
     private static final String TAG = "Parcel";
 
     @SuppressWarnings({"UnusedDeclaration"})
-    private int mNativePtr; // used by native code
+    private long mNativePtr; // used by native code
 
     /**
      * Flag indicating if {@link #mNativePtr} was allocated by this object,
@@ -232,47 +232,47 @@ public final class Parcel {
     private static final int EX_NETWORK_MAIN_THREAD = -6;
     private static final int EX_HAS_REPLY_HEADER = -128;  // special; see below
 
-    private static native int nativeDataSize(int nativePtr);
-    private static native int nativeDataAvail(int nativePtr);
-    private static native int nativeDataPosition(int nativePtr);
-    private static native int nativeDataCapacity(int nativePtr);
-    private static native void nativeSetDataSize(int nativePtr, int size);
-    private static native void nativeSetDataPosition(int nativePtr, int pos);
-    private static native void nativeSetDataCapacity(int nativePtr, int size);
-
-    private static native boolean nativePushAllowFds(int nativePtr, boolean allowFds);
-    private static native void nativeRestoreAllowFds(int nativePtr, boolean lastValue);
-
-    private static native void nativeWriteByteArray(int nativePtr, byte[] b, int offset, int len);
-    private static native void nativeWriteInt(int nativePtr, int val);
-    private static native void nativeWriteLong(int nativePtr, long val);
-    private static native void nativeWriteFloat(int nativePtr, float val);
-    private static native void nativeWriteDouble(int nativePtr, double val);
-    private static native void nativeWriteString(int nativePtr, String val);
-    private static native void nativeWriteStrongBinder(int nativePtr, IBinder val);
-    private static native void nativeWriteFileDescriptor(int nativePtr, FileDescriptor val);
-
-    private static native byte[] nativeCreateByteArray(int nativePtr);
-    private static native int nativeReadInt(int nativePtr);
-    private static native long nativeReadLong(int nativePtr);
-    private static native float nativeReadFloat(int nativePtr);
-    private static native double nativeReadDouble(int nativePtr);
-    private static native String nativeReadString(int nativePtr);
-    private static native IBinder nativeReadStrongBinder(int nativePtr);
-    private static native FileDescriptor nativeReadFileDescriptor(int nativePtr);
-
-    private static native int nativeCreate();
-    private static native void nativeFreeBuffer(int nativePtr);
-    private static native void nativeDestroy(int nativePtr);
-
-    private static native byte[] nativeMarshall(int nativePtr);
+    private static native int nativeDataSize(long nativePtr);
+    private static native int nativeDataAvail(long nativePtr);
+    private static native int nativeDataPosition(long nativePtr);
+    private static native int nativeDataCapacity(long nativePtr);
+    private static native void nativeSetDataSize(long nativePtr, int size);
+    private static native void nativeSetDataPosition(long nativePtr, int pos);
+    private static native void nativeSetDataCapacity(long nativePtr, int size);
+
+    private static native boolean nativePushAllowFds(long nativePtr, boolean allowFds);
+    private static native void nativeRestoreAllowFds(long nativePtr, boolean lastValue);
+
+    private static native void nativeWriteByteArray(long nativePtr, byte[] b, int offset, int len);
+    private static native void nativeWriteInt(long nativePtr, int val);
+    private static native void nativeWriteLong(long nativePtr, long val);
+    private static native void nativeWriteFloat(long nativePtr, float val);
+    private static native void nativeWriteDouble(long nativePtr, double val);
+    private static native void nativeWriteString(long nativePtr, String val);
+    private static native void nativeWriteStrongBinder(long nativePtr, IBinder val);
+    private static native void nativeWriteFileDescriptor(long nativePtr, FileDescriptor val);
+
+    private static native byte[] nativeCreateByteArray(long nativePtr);
+    private static native int nativeReadInt(long nativePtr);
+    private static native long nativeReadLong(long nativePtr);
+    private static native float nativeReadFloat(long nativePtr);
+    private static native double nativeReadDouble(long nativePtr);
+    private static native String nativeReadString(long nativePtr);
+    private static native IBinder nativeReadStrongBinder(long nativePtr);
+    private static native FileDescriptor nativeReadFileDescriptor(long nativePtr);
+
+    private static native long nativeCreate();
+    private static native void nativeFreeBuffer(long nativePtr);
+    private static native void nativeDestroy(long nativePtr);
+
+    private static native byte[] nativeMarshall(long nativePtr);
     private static native void nativeUnmarshall(
-            int nativePtr, byte[] data, int offest, int length);
+            long nativePtr, byte[] data, int offest, int length);
     private static native void nativeAppendFrom(
-            int thisNativePtr, int otherNativePtr, int offset, int length);
-    private static native boolean nativeHasFileDescriptors(int nativePtr);
-    private static native void nativeWriteInterfaceToken(int nativePtr, String interfaceName);
-    private static native void nativeEnforceInterface(int nativePtr, String interfaceName);
+            long thisNativePtr, long otherNativePtr, int offset, int length);
+    private static native boolean nativeHasFileDescriptors(long nativePtr);
+    private static native void nativeWriteInterfaceToken(long nativePtr, String interfaceName);
+    private static native void nativeEnforceInterface(long nativePtr, String interfaceName);
 
     public final static Parcelable.Creator<String> STRING_CREATOR
              = new Parcelable.Creator<String>() {
@@ -2229,6 +2229,11 @@ public final class Parcel {
         mCreators = new HashMap<ClassLoader,HashMap<String,Parcelable.Creator>>();
 
     static protected final Parcel obtain(int obj) {
+        throw new UnsupportedOperationException();
+    }
+
+    /** @hide */
+    static protected final Parcel obtain(long obj) {
         final Parcel[] pool = sHolderPool;
         synchronized (pool) {
             Parcel p;
@@ -2247,7 +2252,7 @@ public final class Parcel {
         return new Parcel(obj);
     }
 
-    private Parcel(int nativePtr) {
+    private Parcel(long nativePtr) {
         if (DEBUG_RECYCLE) {
             mStack = new RuntimeException();
         }
@@ -2255,7 +2260,7 @@ public final class Parcel {
         init(nativePtr);
     }
 
-    private void init(int nativePtr) {
+    private void init(long nativePtr) {
         if (nativePtr != 0) {
             mNativePtr = nativePtr;
             mOwnsNativeParcelObject = false;