Initial layout of ART Service files

This CL contains the initial scaffolding for the ART Service project.
This contains a Java Language library for loading into the System
Server and two native support libraries.  At this moment these libraries
contain simple "Hello World" stubs.

Test: Build each of the libraries
Test: art/build/apex/runtests.sh
Bug: 177273468
Change-Id: I597ce336a9ddc14d7b407efef7c1e34f5a4a46ae

9 files changed, 261 insertions, 2 deletions

diff --git a/build/apex/Android.bp b/build/apex/Android.bp
index 78770db6bf..8b6df9da43 100644
--- a/build/apex/Android.bp
+++ b/build/apex/Android.bp
@@ -51,12 +51,16 @@ art_runtime_base_native_shared_libs = [
     // dependencies work with APEX libraries.
     "libart",
     "libart-compiler",
+    "libartservice",
     "libdt_fd_forward",
     "libdt_socket",
     "libjdwp",
     "libnpt",
     "libopenjdkjvm",
     "libopenjdkjvmti",
+    // TODO(chriswailes): Make libarttools a dependency for another target
+    // when such a target exists
+    "libarttools",
 ]
 
 art_runtime_base_native_device_only_shared_libs = [
@@ -158,6 +162,11 @@ libcore_java_libs = [
     "apache-xml",
 ]
 
+// ART Java libraries
+art_java_libs = [
+    "artservice",
+]
+
 // Native libraries that support the core Java libraries.
 //
 // Note: ART on-device chroot-based testing and benchmarking is not yet using
@@ -229,7 +238,7 @@ apex_defaults {
     compile_multilib: "both",
     manifest: "manifest-art.json",
     boot_images: ["art-boot-image"],
-    java_libs: libcore_java_libs,
+    java_libs: libcore_java_libs + art_java_libs,
     native_shared_libs: art_runtime_base_native_shared_libs +
         art_runtime_base_native_device_only_shared_libs +
         libcore_native_shared_libs,
@@ -353,7 +362,7 @@ art_apex_test_host {
     host_supported: true,
     device_supported: false,
     manifest: "manifest-art.json",
-    java_libs: libcore_java_libs,
+    java_libs: libcore_java_libs + art_java_libs,
     ignore_system_library_special_case: true,
     native_shared_libs: art_runtime_base_native_shared_libs +
         art_runtime_debug_native_shared_libs +
diff --git a/build/apex/art_apex_test.py b/build/apex/art_apex_test.py
index 498ee95c9e..fbe62232e7 100755
--- a/build/apex/art_apex_test.py
+++ b/build/apex/art_apex_test.py
@@ -540,6 +540,8 @@ class ReleaseChecker:
     self._checker.check_native_library('libart-disassembler')
     self._checker.check_native_library('libartbase')
     self._checker.check_native_library('libartpalette')
+    self._checker.check_native_library('libartservice')
+    self._checker.check_native_library('libarttools')
     self._checker.check_native_library('libdexfile')
     self._checker.check_native_library('libdexfile_support')
     self._checker.check_native_library('libdt_fd_forward')
@@ -548,6 +550,9 @@ class ReleaseChecker:
     self._checker.check_native_library('libprofile')
     self._checker.check_native_library('libsigchain')
 
+    # Check internal Java libraries
+    self._checker.check_java_library("artservice")
+
     # Check java libraries for Managed Core Library.
     self._checker.check_java_library('apache-xml')
     self._checker.check_java_library('bouncycastle')
diff --git a/libartservice/Android.bp b/libartservice/Android.bp
new file mode 100644
index 0000000000..c629cfb58a
--- /dev/null
+++ b/libartservice/Android.bp
@@ -0,0 +1,62 @@
+// Copyright (C) 2021 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.
+
+cc_library {
+    // This native library contains JNI support code for the ART Service Java
+    // Language library.
+
+    name: "libartservice",
+    host_supported: true,
+    srcs: [
+        "service/native/service.cc",
+    ],
+    export_include_dirs: ["."],
+    apex_available: [
+        "com.android.art",
+        "com.android.art.debug",
+    ],
+    shared_libs: [
+        "libbase",
+    ],
+    export_shared_lib_headers: ["libbase"],
+    cflags: ["-Werror"],
+}
+
+java_library {
+    // This Java Language Library contains the ART Service class that will be
+    // loaded by the System Server.
+
+    name: "artservice",
+    visibility: [
+        "//art:__subpackages__",
+    ],
+
+    apex_available: [
+        "com.android.art",
+        "com.android.art.debug",
+    ],
+
+    sdk_version: "core_platform",
+
+    srcs: [
+        "service/java/com/android/server/art/ArtService.java",
+    ],
+
+    libs: [
+        "art.module.api.annotations.for.system.modules",
+        "unsupportedappusage",
+    ],
+
+    plugins: ["java_api_finder"],
+}
diff --git a/libartservice/service/java/com/android/server/art/ArtService.java b/libartservice/service/java/com/android/server/art/ArtService.java
new file mode 100644
index 0000000000..bfc870e58c
--- /dev/null
+++ b/libartservice/service/java/com/android/server/art/ArtService.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+package com.android.server.art;
+
+import libcore.api.CorePlatformApi;
+
+/**
+ * This class provides a system API for functionality provided by the ART
+ * module.
+ */
+@libcore.api.CorePlatformApi(status = CorePlatformApi.Status.STABLE)
+public final class ArtService {
+    static final String LOG_TAG = "ArtService";
+
+    static String getMsg() {
+        return "Hello world!";
+    }
+}
diff --git a/libartservice/service/native/service.cc b/libartservice/service/native/service.cc
new file mode 100644
index 0000000000..d33cb59515
--- /dev/null
+++ b/libartservice/service/native/service.cc
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include "service.h"
+
+namespace art {
+namespace service {
+
+std::string getMsg() {
+    return "hello world!";
+}
+
+}
+}
diff --git a/libartservice/service/native/service.h b/libartservice/service/native/service.h
new file mode 100644
index 0000000000..2b680a28a4
--- /dev/null
+++ b/libartservice/service/native/service.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef ART_LIBARTSERVICE_SERVICE_NATIVE_SERVICE_H_
+#define ART_LIBARTSERVICE_SERVICE_NATIVE_SERVICE_H_
+
+#include <string>
+
+namespace art {
+namespace service {
+
+std::string getMsg();
+
+}  // namespace service
+}  // namespace art
+
+#endif  // ART_LIBARTSERVICE_SERVICE_NATIVE_SERVICE_H_
diff --git a/libarttools/Android.bp b/libarttools/Android.bp
new file mode 100644
index 0000000000..b602f4f4b5
--- /dev/null
+++ b/libarttools/Android.bp
@@ -0,0 +1,37 @@
+//
+// Copyright (C) 2021 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.
+//
+
+cc_library {
+    // This library contains low-level interfaces used to call dex2oat and
+    // related tools.  It will translate structured messages into command line
+    // arguments.  This will allow other libraries or programs besides the ART
+    // Service to make use of this functionality.
+
+    name: "libarttools",
+    host_supported: true,
+    srcs: [
+        "tools/tools.cc",
+    ],
+    export_include_dirs: ["."],
+    apex_available: [
+        "com.android.art",
+        "com.android.art.debug",
+    ],
+    shared_libs: [
+        "libbase",
+    ],
+    export_shared_lib_headers: ["libbase"],
+}
diff --git a/libarttools/tools/tools.cc b/libarttools/tools/tools.cc
new file mode 100644
index 0000000000..a3a91e81e2
--- /dev/null
+++ b/libarttools/tools/tools.cc
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include "tools.h"
+
+namespace art {
+namespace tools {
+
+std::string getMsg() {
+    return "hello world!";
+}
+
+}
+}
diff --git a/libarttools/tools/tools.h b/libarttools/tools/tools.h
new file mode 100644
index 0000000000..8231f5f74a
--- /dev/null
+++ b/libarttools/tools/tools.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#ifndef ART_LIBARTTOOLS_TOOLS_TOOLS_H_
+#define ART_LIBARTTOOLS_TOOLS_TOOLS_H_
+
+#include <string>
+
+namespace art {
+namespace tools {
+
+std::string getMsg();
+
+}  // namespace tools
+}  // namespace art
+
+#endif  // ART_LIBARTTOOLS_TOOLS_TOOLS_H_