ART: Add GetFrameCount and GetFrameLocation
Add support for GetFrameCount and GetFrameLocation. Add tests.
Bug: 31684812
Test: m test-art-host-run-test-911-get-stack-trace
Change-Id: I7656e243f614eb0ceb5fcd6841128119fad89968
diff --git a/test/911-get-stack-trace/src/Frames.java b/test/911-get-stack-trace/src/Frames.java
new file mode 100644
index 0000000..a1a11c3
--- /dev/null
+++ b/test/911-get-stack-trace/src/Frames.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2017 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 java.util.Arrays;
+
+public class Frames {
+ public static void doTest() throws Exception {
+ doTestSameThread();
+
+ System.out.println();
+
+ doTestOtherThreadWait();
+
+ System.out.println();
+
+ doTestOtherThreadBusyLoop();
+ }
+
+ public static void doTestSameThread() {
+ System.out.println("###################");
+ System.out.println("### Same thread ###");
+ System.out.println("###################");
+
+ Thread t = Thread.currentThread();
+
+ int count = getFrameCount(t);
+ System.out.println(count);
+ try {
+ System.out.println(Arrays.toString(getFrameLocation(t, -1)));
+ } catch (RuntimeException e) {
+ System.out.println(e.getMessage());
+ }
+ for (int i = 0; i < count; i++) {
+ System.out.println(Arrays.toString(getFrameLocation(t, i)));
+ }
+ try {
+ System.out.println(Arrays.toString(getFrameLocation(t, count)));
+ } catch (RuntimeException e) {
+ System.out.println(e.getMessage());
+ }
+ }
+
+ public static void doTestOtherThreadWait() throws Exception {
+ System.out.println("################################");
+ System.out.println("### Other thread (suspended) ###");
+ System.out.println("################################");
+ final ControlData data = new ControlData();
+ data.waitFor = new Object();
+ Thread t = new Thread() {
+ public void run() {
+ Recurse.foo(4, 0, 0, data);
+ }
+ };
+ t.start();
+ data.reached.await();
+ Thread.yield();
+ Thread.sleep(500); // A little bit of time...
+
+ int count = getFrameCount(t);
+ System.out.println(count);
+ try {
+ System.out.println(Arrays.toString(getFrameLocation(t, -1)));
+ } catch (RuntimeException e) {
+ System.out.println(e.getMessage());
+ }
+ for (int i = 0; i < count; i++) {
+ System.out.println(Arrays.toString(getFrameLocation(t, i)));
+ }
+ try {
+ System.out.println(Arrays.toString(getFrameLocation(t, count)));
+ } catch (RuntimeException e) {
+ System.out.println(e.getMessage());
+ }
+
+ // Let the thread make progress and die.
+ synchronized(data.waitFor) {
+ data.waitFor.notifyAll();
+ }
+ t.join();
+ }
+
+ public static void doTestOtherThreadBusyLoop() throws Exception {
+ System.out.println("###########################");
+ System.out.println("### Other thread (live) ###");
+ System.out.println("###########################");
+ final ControlData data = new ControlData();
+ Thread t = new Thread() {
+ public void run() {
+ Recurse.foo(4, 0, 0, data);
+ }
+ };
+ t.start();
+ data.reached.await();
+ Thread.yield();
+ Thread.sleep(500); // A little bit of time...
+
+ int count = getFrameCount(t);
+ System.out.println(count);
+ try {
+ System.out.println(Arrays.toString(getFrameLocation(t, -1)));
+ } catch (RuntimeException e) {
+ System.out.println(e.getMessage());
+ }
+ for (int i = 0; i < count; i++) {
+ System.out.println(Arrays.toString(getFrameLocation(t, i)));
+ }
+ try {
+ System.out.println(Arrays.toString(getFrameLocation(t, count)));
+ } catch (RuntimeException e) {
+ System.out.println(e.getMessage());
+ }
+
+ // Let the thread stop looping and die.
+ data.stop = true;
+ t.join();
+ }
+
+ public static native int getFrameCount(Thread thread);
+ public static native Object[] getFrameLocation(Thread thread, int depth);
+}
diff --git a/test/911-get-stack-trace/src/Main.java b/test/911-get-stack-trace/src/Main.java
index 2df5c53..b199033 100644
--- a/test/911-get-stack-trace/src/Main.java
+++ b/test/911-get-stack-trace/src/Main.java
@@ -36,6 +36,10 @@
ThreadListTraces.doTest();
+ System.out.println();
+
+ Frames.doTest();
+
System.out.println("Done");
}
}