ART: Add OnLoad system classloader search support
Add support for extension of the system classloader search path
during the OnLoad phase. Add test.
Bug: 34359699
Test: m test-art-host-run-test-936-search-onload
Change-Id: Ie0a5b4bb77999dfae87f955dde40b73ffe053b8e
diff --git a/test/936-search-onload/build b/test/936-search-onload/build
new file mode 100755
index 0000000..898e2e5
--- /dev/null
+++ b/test/936-search-onload/build
@@ -0,0 +1,17 @@
+#!/bin/bash
+#
+# Copyright 2016 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.
+
+./default-build "$@" --experimental agents
diff --git a/test/936-search-onload/expected.txt b/test/936-search-onload/expected.txt
new file mode 100644
index 0000000..2eec8e1
--- /dev/null
+++ b/test/936-search-onload/expected.txt
@@ -0,0 +1,3 @@
+B was loaded with boot classloader
+A was loaded with system classloader
+Done
diff --git a/test/936-search-onload/info.txt b/test/936-search-onload/info.txt
new file mode 100644
index 0000000..875a5f6
--- /dev/null
+++ b/test/936-search-onload/info.txt
@@ -0,0 +1 @@
+Tests basic functions in the jvmti plugin.
diff --git a/test/936-search-onload/run b/test/936-search-onload/run
new file mode 100755
index 0000000..67923a7
--- /dev/null
+++ b/test/936-search-onload/run
@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# Copyright 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This test checks whether dex files can be injected into parent classloaders. App images preload
+# classes, which will make the injection moot. Turn off app images to avoid the issue.
+
+./default-run "$@" --jvmti \
+ --no-app-image
diff --git a/test/936-search-onload/search_onload.cc b/test/936-search-onload/search_onload.cc
new file mode 100644
index 0000000..2286a46
--- /dev/null
+++ b/test/936-search-onload/search_onload.cc
@@ -0,0 +1,63 @@
+/*
+ * 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.
+ */
+
+#include "search_onload.h"
+
+#include <inttypes.h>
+
+#include "android-base/stringprintf.h"
+#include "base/logging.h"
+#include "base/macros.h"
+#include "jni.h"
+#include "openjdkjvmti/jvmti.h"
+#include "ScopedUtfChars.h"
+
+#include "ti-agent/common_helper.h"
+#include "ti-agent/common_load.h"
+
+namespace art {
+namespace Test936SearchOnload {
+
+jint OnLoad(JavaVM* vm,
+ char* options ATTRIBUTE_UNUSED,
+ void* reserved ATTRIBUTE_UNUSED) {
+ if (vm->GetEnv(reinterpret_cast<void**>(&jvmti_env), JVMTI_VERSION_1_0)) {
+ printf("Unable to get jvmti env!\n");
+ return 1;
+ }
+ SetAllCapabilities(jvmti_env);
+
+ char* dex_loc = getenv("DEX_LOCATION");
+ std::string dex1 = android::base::StringPrintf("%s/936-search-onload.jar", dex_loc);
+ std::string dex2 = android::base::StringPrintf("%s/936-search-onload-ex.jar", dex_loc);
+
+ jvmtiError result = jvmti_env->AddToBootstrapClassLoaderSearch(dex1.c_str());
+ if (result != JVMTI_ERROR_NONE) {
+ printf("Could not add to bootstrap classloader.\n");
+ return 1;
+ }
+
+ result = jvmti_env->AddToSystemClassLoaderSearch(dex2.c_str());
+ if (result != JVMTI_ERROR_NONE) {
+ printf("Could not add to system classloader.\n");
+ return 1;
+ }
+
+ return JNI_OK;
+}
+
+} // namespace Test936SearchOnload
+} // namespace art
diff --git a/test/936-search-onload/search_onload.h b/test/936-search-onload/search_onload.h
new file mode 100644
index 0000000..e556892
--- /dev/null
+++ b/test/936-search-onload/search_onload.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2016 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_TEST_936_SEARCH_ONLOAD_SEARCH_ONLOAD_H_
+#define ART_TEST_936_SEARCH_ONLOAD_SEARCH_ONLOAD_H_
+
+#include <jni.h>
+
+namespace art {
+namespace Test936SearchOnload {
+
+jint OnLoad(JavaVM* vm, char* options, void* reserved);
+
+} // namespace Test936SearchOnload
+} // namespace art
+
+#endif // ART_TEST_936_SEARCH_ONLOAD_SEARCH_ONLOAD_H_
diff --git a/test/936-search-onload/src-ex/A.java b/test/936-search-onload/src-ex/A.java
new file mode 100644
index 0000000..64acb2f
--- /dev/null
+++ b/test/936-search-onload/src-ex/A.java
@@ -0,0 +1,18 @@
+/*
+ * 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.
+ */
+
+public class A {
+}
\ No newline at end of file
diff --git a/test/936-search-onload/src/B.java b/test/936-search-onload/src/B.java
new file mode 100644
index 0000000..f1458c3
--- /dev/null
+++ b/test/936-search-onload/src/B.java
@@ -0,0 +1,18 @@
+/*
+ * 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.
+ */
+
+public class B {
+}
\ No newline at end of file
diff --git a/test/936-search-onload/src/Main.java b/test/936-search-onload/src/Main.java
new file mode 100644
index 0000000..2e7a871
--- /dev/null
+++ b/test/936-search-onload/src/Main.java
@@ -0,0 +1,47 @@
+/*
+ * 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 Main {
+ public static void main(String[] args) throws Exception {
+ doTest();
+ }
+
+ private static void doTest() throws Exception {
+ doTest(true, "B");
+ doTest(false, "A");
+ System.out.println("Done");
+ }
+
+ private static void doTest(boolean boot, String className) throws Exception {
+ ClassLoader expectedClassLoader;
+ if (boot) {
+ expectedClassLoader = Object.class.getClassLoader();
+ } else {
+ expectedClassLoader = ClassLoader.getSystemClassLoader();
+ }
+
+ Class<?> c = Class.forName(className, false, ClassLoader.getSystemClassLoader());
+ if (c.getClassLoader() != expectedClassLoader) {
+ throw new RuntimeException(className + "(" + boot + "): " +
+ c.getClassLoader() + " vs " + expectedClassLoader);
+ } else {
+ System.out.println(className + " was loaded with " + (boot ? "boot" : "system") +
+ " classloader");
+ }
+ }
+}