Add resize arrays JVMTI extension
As a prototype for more general object replacement functionality add a
new JVMTI extension that allows one to change the size of arrays. This
extension is 'com.android.art.heap.change_array_size'. As far as any
JVMTI agent, JNI or Java Language code can observer this extension
atomically replaces every reference (strong and weak, global and
local, etc.) with a newly allocated array with the same contents but a
different length. Internally a whole new array will be created then
the old array will have its contents (including lock-word) copied and
all references to the old array will be replaced with the new array.
Test: ./test.py --host
Bug: 134162467
Change-Id: I92a0beabb02e0c92c8c8f9639836014ff1266878
diff --git a/test/1974-resize-array/run b/test/1974-resize-array/run
new file mode 100755
index 0000000..96646c8
--- /dev/null
+++ b/test/1974-resize-array/run
@@ -0,0 +1,18 @@
+#!/bin/bash
+#
+# Copyright 2019 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.
+
+
+./default-run "$@" --jvmti