Add JVMTI agent to dump/reset JaCoCo coverage information

This agent can be attached to an arbitrary Android process with
arguments that cause it to either reset or dump the JaCoCo information
to a provided directory.

Test: manual, used examples in README to test whether it works on a
userdebug_coverage build on cuttlefish

Change-Id: If6cee20046f790676b8085e1ca84652c063295fa

1 files changed, 29 insertions, 0 deletions

diff --git a/tools/dump-coverage/Android.bp b/tools/dump-coverage/Android.bp
new file mode 100644
index 000000000000..4519ce3636bf
--- /dev/null
+++ b/tools/dump-coverage/Android.bp
@@ -0,0 +1,29 @@
+//
+// Copyright (C) 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.
+//
+
+// Build variants {target,host} x {32,64}
+cc_library {
+    name: "libdumpcoverage",
+    srcs: ["dump_coverage.cc"],
+    header_libs: [
+        "libopenjdkjvmti_headers",
+    ],
+
+    host_supported: true,
+    shared_libs: [
+        "libbase",
+    ],
+}