1 files changed, 60 insertions, 0 deletions
diff --git a/test/987-stack-trace-dumping/src/Main.java b/test/987-stack-trace-dumping/src/Main.java
new file mode 100644
index 0000000000..d1e8a1b56b
--- /dev/null
+++ b/test/987-stack-trace-dumping/src/Main.java
@@ -0,0 +1,60 @@
+/*
+ * 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.io.File;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        if (args.length != 3) {
+            throw new AssertionError("Unexpected number of args: " + args.length);
+        }
+
+        if (!"--stack-trace-dir".equals(args[1])) {
+            throw new AssertionError("Unexpected argument in position 1: " + args[1]);
+        }
+
+        // Send ourselves signal 3, which forces stack traces to be written to disk.
+        android.system.Os.kill(android.system.Os.getpid(), 3);
+
+        File[] files = null;
+        final String stackTraceDir = args[2];
+        for (int i = 0; i < 5; ++i) {
+            // Give the signal handler some time to run and dump traces - up to a maximum
+            // of 5 seconds. This is a kludge, but it's hard to do this without using things
+            // like inotify / WatchService and the like.
+            Thread.sleep(1000);
+
+            files = (new File(stackTraceDir)).listFiles();
+            if (files != null && files.length == 1) {
+                break;
+            }
+        }
+
+
+        if (files == null) {
+            throw new AssertionError("Gave up waiting for traces: " + java.util.Arrays.toString(files));
+        }
+
+        final String fileName = files[0].getName();
+        if (!fileName.startsWith("anr-pid")) {
+            throw new AssertionError("Unexpected prefix: " + fileName);
+        }
+
+        if (!fileName.contains(String.valueOf(android.system.Os.getpid()))) {
+            throw new AssertionError("File name does not contain process PID: " + fileName);
+        }
+    }
+}