Allow "am" to initiate heap dumps.
This was mostly cloned from the "am profile" implementation. It's
intended to replace the old "kill -10" approach used by "runhat".
We could really use a native heap dump, so I pass a "managed"
flag through that indicates whether we want to dump the native or
managed heap. We don't currently have a native heap dump-to-file
function, so it currently just logs a warning.
(android.ddm.DdmHandleNativeHeap.getLeakInfo is a good start -- it
copies /proc/maps and then calls get_malloc_leak_info to get some
goodies. Needs some formatting to make it human-readable. I didn't
want to cram all that into this change.)
It would be useful if "am" didn't exit until the heap dump operation
completed, but I'm not sure how to do that.
Bug 2759474.
Change-Id: I46bc98067738d8c72ac0fc10002ca67bb4929271
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index 20c9a80..8ea59a7 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -316,7 +316,11 @@
public void crashApplication(int uid, int initialPid, String packageName,
String message) throws RemoteException;
-
+
+ // Cause the specified process to dump the specified heap.
+ public boolean dumpHeap(String process, boolean managed, String path,
+ ParcelFileDescriptor fd) throws RemoteException;
+
/*
* Private non-Binder interfaces
*/
@@ -533,4 +537,5 @@
int SET_IMMERSIVE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+111;
int IS_TOP_ACTIVITY_IMMERSIVE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+112;
int CRASH_APPLICATION_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+113;
+ int DUMP_HEAP_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+114;
}