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-rw-r--r--dexopt_chroot_setup/Android.bp111
-rw-r--r--dexopt_chroot_setup/README.md10
-rw-r--r--dexopt_chroot_setup/binder/Android.bp56
-rw-r--r--dexopt_chroot_setup/binder/com/android/server/art/IDexoptChrootSetup.aidl21
-rw-r--r--dexopt_chroot_setup/dexopt_chroot_setup.cc52
-rw-r--r--dexopt_chroot_setup/dexopt_chroot_setup.h35
-rw-r--r--dexopt_chroot_setup/dexopt_chroot_setup_fuzzer.cc31
-rw-r--r--dexopt_chroot_setup/dexopt_chroot_setup_main.cc43
-rw-r--r--dexopt_chroot_setup/dexopt_chroot_setup_test.cc41
9 files changed, 400 insertions, 0 deletions
diff --git a/dexopt_chroot_setup/Android.bp b/dexopt_chroot_setup/Android.bp
new file mode 100644
index 0000000000..93e012a594
--- /dev/null
+++ b/dexopt_chroot_setup/Android.bp
@@ -0,0 +1,111 @@
+//
+// Copyright (C) 2024 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 {
+ // See: http://go/android-license-faq
+ // A large-scale-change added 'default_applicable_licenses' to import
+ // all of the 'license_kinds' from "art_license"
+ // to get the below license kinds:
+ // SPDX-license-identifier-Apache-2.0
+ default_applicable_licenses: ["art_license"],
+}
+
+cc_defaults {
+ name: "dexopt_chroot_setup_defaults",
+ defaults: ["art_defaults"],
+ srcs: [
+ "dexopt_chroot_setup.cc",
+ ],
+ shared_libs: [
+ "libbase",
+ "libbinder_ndk",
+ ],
+ static_libs: [
+ "dexopt_chroot_setup-aidl-ndk",
+ ],
+}
+
+art_cc_binary {
+ name: "dexopt_chroot_setup",
+ defaults: ["dexopt_chroot_setup_defaults"],
+ srcs: [
+ "dexopt_chroot_setup_main.cc",
+ ],
+ shared_libs: [
+ "libart",
+ "libartbase",
+ ],
+ apex_available: [
+ "com.android.art",
+ "com.android.art.debug",
+ ],
+}
+
+art_cc_defaults {
+ name: "art_dexopt_chroot_setup_tests_defaults",
+ defaults: ["dexopt_chroot_setup_defaults"],
+ static_libs: [
+ "libgmock",
+ ],
+ srcs: [
+ "dexopt_chroot_setup_test.cc",
+ ],
+}
+
+// Version of ART gtest `art_dexopt_chroot_setup_tests` bundled with the ART
+// APEX on target.
+//
+// This test requires the full libbinder_ndk implementation on host, which is
+// not available as a prebuilt on the thin master-art branch. Hence it won't
+// work there, and there's a conditional in Android.gtest.mk to exclude it from
+// test-art-host-gtest.
+art_cc_test {
+ name: "art_dexopt_chroot_setup_tests",
+ defaults: [
+ "art_gtest_defaults",
+ "art_dexopt_chroot_setup_tests_defaults",
+ ],
+}
+
+// Standalone version of ART gtest `art_dexopt_chroot_setup_tests`, not bundled
+// with the ART APEX on target.
+art_cc_test {
+ name: "art_standalone_dexopt_chroot_setup_tests",
+ defaults: [
+ "art_standalone_gtest_defaults",
+ "art_dexopt_chroot_setup_tests_defaults",
+ ],
+}
+
+cc_fuzz {
+ name: "dexopt_chroot_setup_fuzzer",
+ defaults: [
+ "service_fuzzer_defaults",
+ "art_module_source_build_defaults",
+ "dexopt_chroot_setup_defaults",
+ ],
+ host_supported: true,
+ srcs: ["dexopt_chroot_setup_fuzzer.cc"],
+ shared_libs: [
+ "libart",
+ "libartbase",
+ "liblog",
+ ],
+ fuzz_config: {
+ cc: [
+ "art-module-team@google.com",
+ ],
+ },
+}
diff --git a/dexopt_chroot_setup/README.md b/dexopt_chroot_setup/README.md
new file mode 100644
index 0000000000..71401248d6
--- /dev/null
+++ b/dexopt_chroot_setup/README.md
@@ -0,0 +1,10 @@
+## dexopt_chroot_setup
+
+dexopt_chroot_setup is a component of ART Service. It sets up the chroot
+environment for Pre-reboot Dexopt, to dexopt apps on a best-effort basis before
+the reboot after a Mainline update or an OTA update is downloaded, to support
+seamless updates.
+
+It requires elevated permissions that are not available to system_server, such
+as mounting filesystems. It publishes a binder interface that is internal to ART
+Service's Java code.
diff --git a/dexopt_chroot_setup/binder/Android.bp b/dexopt_chroot_setup/binder/Android.bp
new file mode 100644
index 0000000000..629a783062
--- /dev/null
+++ b/dexopt_chroot_setup/binder/Android.bp
@@ -0,0 +1,56 @@
+//
+// Copyright (C) 2024 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 {
+ // See: http://go/android-license-faq
+ // A large-scale-change added 'default_applicable_licenses' to import
+ // all of the 'license_kinds' from "art_license"
+ // to get the below license kinds:
+ // SPDX-license-identifier-Apache-2.0
+ default_applicable_licenses: ["art_license"],
+}
+
+aidl_interface {
+ name: "dexopt_chroot_setup-aidl",
+ srcs: [
+ "com/android/server/art/*.aidl",
+ ],
+ host_supported: true,
+ backend: {
+ java: {
+ enabled: true,
+ apex_available: [
+ "com.android.art",
+ "com.android.art.debug",
+ ],
+ },
+ cpp: {
+ enabled: false,
+ },
+ ndk: {
+ enabled: true,
+ apex_available: [
+ "com.android.art",
+ "com.android.art.debug",
+ ],
+ },
+ },
+ unstable: true,
+ visibility: [
+ "//system/tools/aidl/build",
+ "//art:__subpackages__",
+ ],
+ min_sdk_version: "31",
+}
diff --git a/dexopt_chroot_setup/binder/com/android/server/art/IDexoptChrootSetup.aidl b/dexopt_chroot_setup/binder/com/android/server/art/IDexoptChrootSetup.aidl
new file mode 100644
index 0000000000..f38fceade8
--- /dev/null
+++ b/dexopt_chroot_setup/binder/com/android/server/art/IDexoptChrootSetup.aidl
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2024 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;
+
+/** @hide */
+interface IDexoptChrootSetup {
+}
diff --git a/dexopt_chroot_setup/dexopt_chroot_setup.cc b/dexopt_chroot_setup/dexopt_chroot_setup.cc
new file mode 100644
index 0000000000..c9a1c735c2
--- /dev/null
+++ b/dexopt_chroot_setup/dexopt_chroot_setup.cc
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2024 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 "dexopt_chroot_setup.h"
+
+#include "aidl/com/android/server/art/BnDexoptChrootSetup.h"
+#include "android-base/errors.h"
+#include "android-base/result.h"
+#include "android/binder_auto_utils.h"
+#include "android/binder_manager.h"
+#include "android/binder_process.h"
+
+namespace art {
+namespace dexopt_chroot_setup {
+
+namespace {
+
+using ::android::base::Error;
+using ::android::base::Result;
+using ::ndk::ScopedAStatus;
+
+constexpr const char* kServiceName = "dexopt_chroot_setup";
+
+} // namespace
+
+Result<void> DexoptChrootSetup::Start() {
+ ScopedAStatus status = ScopedAStatus::fromStatus(
+ AServiceManager_registerLazyService(this->asBinder().get(), kServiceName));
+ if (!status.isOk()) {
+ return Error() << status.getDescription();
+ }
+
+ ABinderProcess_startThreadPool();
+
+ return {};
+}
+
+} // namespace dexopt_chroot_setup
+} // namespace art
diff --git a/dexopt_chroot_setup/dexopt_chroot_setup.h b/dexopt_chroot_setup/dexopt_chroot_setup.h
new file mode 100644
index 0000000000..858c71711d
--- /dev/null
+++ b/dexopt_chroot_setup/dexopt_chroot_setup.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2024 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_DEXOPT_CHROOT_SETUP_DEXOPT_CHROOT_SETUP_H_
+#define ART_DEXOPT_CHROOT_SETUP_DEXOPT_CHROOT_SETUP_H_
+
+#include "aidl/com/android/server/art/BnDexoptChrootSetup.h"
+#include "android-base/result.h"
+
+namespace art {
+namespace dexopt_chroot_setup {
+
+// A service that sets up the chroot environment for Pre-reboot Dexopt.
+class DexoptChrootSetup : public aidl::com::android::server::art::BnDexoptChrootSetup {
+ public:
+ android::base::Result<void> Start();
+};
+
+} // namespace dexopt_chroot_setup
+} // namespace art
+
+#endif // ART_DEXOPT_CHROOT_SETUP_DEXOPT_CHROOT_SETUP_H_
diff --git a/dexopt_chroot_setup/dexopt_chroot_setup_fuzzer.cc b/dexopt_chroot_setup/dexopt_chroot_setup_fuzzer.cc
new file mode 100644
index 0000000000..fe3663e38e
--- /dev/null
+++ b/dexopt_chroot_setup/dexopt_chroot_setup_fuzzer.cc
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2024 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 "dexopt_chroot_setup.h"
+#include "fuzzbinder/libbinder_ndk_driver.h"
+#include "fuzzer/FuzzedDataProvider.h"
+
+using ::android::fuzzService;
+using ::art::dexopt_chroot_setup::DexoptChrootSetup;
+using ::ndk::SharedRefBase;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+ auto dexopt_chroot_setup = SharedRefBase::make<DexoptChrootSetup>();
+
+ fuzzService(dexopt_chroot_setup->asBinder().get(), FuzzedDataProvider(data, size));
+
+ return 0;
+}
diff --git a/dexopt_chroot_setup/dexopt_chroot_setup_main.cc b/dexopt_chroot_setup/dexopt_chroot_setup_main.cc
new file mode 100644
index 0000000000..5e74783619
--- /dev/null
+++ b/dexopt_chroot_setup/dexopt_chroot_setup_main.cc
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2024 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 <stdlib.h>
+
+#include "android-base/logging.h"
+#include "android-base/macros.h"
+#include "android/binder_interface_utils.h"
+#include "android/binder_process.h"
+#include "dexopt_chroot_setup.h"
+
+int main([[maybe_unused]] int argc, char* argv[]) {
+ android::base::InitLogging(argv);
+
+ auto dexopt_chroot_setup =
+ ndk::SharedRefBase::make<art::dexopt_chroot_setup::DexoptChrootSetup>();
+
+ LOG(INFO) << "Starting dexopt_chroot_setup";
+
+ if (android::base::Result<void> ret = dexopt_chroot_setup->Start(); !ret.ok()) {
+ LOG(ERROR) << "Unable to start dexopt_chroot_setup: " << ret.error();
+ exit(1);
+ }
+
+ ABinderProcess_joinThreadPool();
+
+ LOG(INFO) << "dexopt_chroot_setup shutting down";
+
+ return 0;
+}
diff --git a/dexopt_chroot_setup/dexopt_chroot_setup_test.cc b/dexopt_chroot_setup/dexopt_chroot_setup_test.cc
new file mode 100644
index 0000000000..ba42fc53ea
--- /dev/null
+++ b/dexopt_chroot_setup/dexopt_chroot_setup_test.cc
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2024 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 "dexopt_chroot_setup.h"
+
+#include "base/common_art_test.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+namespace art {
+namespace dexopt_chroot_setup {
+namespace {
+
+class DexoptChrootSetupTest : public CommonArtTest {
+ protected:
+ void SetUp() override {
+ CommonArtTest::SetUp();
+ dexopt_chroot_setup_ = ndk::SharedRefBase::make<DexoptChrootSetup>();
+ }
+
+ std::shared_ptr<DexoptChrootSetup> dexopt_chroot_setup_;
+};
+
+TEST_F(DexoptChrootSetupTest, HelloWorld) { EXPECT_NE(dexopt_chroot_setup_, nullptr); }
+
+} // namespace
+} // namespace dexopt_chroot_setup
+} // namespace art
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-19 14:41:00 +0000