REQUIRES_SHARED(Locks::mutator_lock_) {
ArtMethod* called = *sp;
DCHECK(called->IsNative()) << called->PrettyMethod(true);
+ // Fix up a callee-save frame at the bottom of the stack (at `*sp`,
+ // above the alloca region) while we check for optimization
+ // annotations, thus allowing stack walking until the completion of
+ // the JNI frame creation.
+ //
+ // Note however that the Generic JNI trampoline does not expect
+ // exception being thrown at that stage.
+ *sp = Runtime::Current()->GetCalleeSaveMethod(Runtime::CalleeSaveType::kSaveRefsAndArgs);
+ self->SetTopOfStack(sp);
uint32_t shorty_len = 0;
const char* shorty = called->GetShorty(&shorty_len);
bool critical_native = called->IsAnnotatedWithCriticalNative();
+ // ArtMethod::IsAnnotatedWithCriticalNative should not throw
+ // an exception; clear it if it happened anyway.
+ // TODO: Revisit this code path and turn this into a CHECK(!self->IsExceptionPending()).
+ if (self->IsExceptionPending()) {
+ self->ClearException();
+ }
bool fast_native = called->IsAnnotatedWithFastNative();
+ // ArtMethod::IsAnnotatedWithFastNative should not throw
+ // an exception; clear it if it happened anyway.
+ // TODO: Revisit this code path and turn this into a CHECK(!self->IsExceptionPending()).
+ if (self->IsExceptionPending()) {
+ self->ClearException();
+ }
bool normal_native = !critical_native && !fast_native;
+ // Restore the initial ArtMethod pointer at `*sp`.
+ *sp = called;
// Run the visitor and update sp.
BuildGenericJniFrameVisitor visitor(self,
--- /dev/null
+JNI_OnLoad called
+Java_Test_nativeMethodWithAnnotation
+passed
--- /dev/null
+Non-regression test for b/38454151, where the invocation of a native
+method with an annotatation through Generic JNI would crash the
+Generic JNI trampoline because it would throw and exception when
+trying to resolve the annotation (during the CriticalNative/FastNative
+optimization annotation lookup).
--- /dev/null
+/*
+ * 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 @interface DummyAnnotation {}
--- /dev/null
+/*
+ * 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 Test {
+
+ public static void initialize(String libname) {
+ // Load test native library to get access to the implementation of
+ // Test.nativeMethodWithAnnotation.
+ System.loadLibrary(libname);
+ }
+
+ @DummyAnnotation
+ public static native void nativeMethodWithAnnotation();
+
+}
--- /dev/null
+/*
+ * 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 dalvik.system.InMemoryDexClassLoader;
+
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.nio.ByteBuffer;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+public class Main {
+
+ public static void main(String[] args) throws Exception {
+ // Extract Dex file contents from the secondary Jar file.
+ String jarFilename =
+ System.getenv("DEX_LOCATION") + "/656-annotation-lookup-generic-jni-ex.jar";
+ ZipFile zipFile = new ZipFile(jarFilename);
+ ZipEntry zipEntry = zipFile.getEntry("classes.dex");
+ InputStream inputStream = zipFile.getInputStream(zipEntry);
+ int dexFileSize = (int) zipEntry.getSize();
+ byte[] dexFileContents = new byte[dexFileSize];
+ inputStream.read(dexFileContents, 0, dexFileSize);
+
+ // Create class loader from secondary Dex file.
+ ByteBuffer dexBuffer = ByteBuffer.wrap(dexFileContents);
+ ClassLoader classLoader = createUnquickenedDexClassLoader(dexBuffer);
+
+ // Load and initialize the Test class.
+ Class<?> testClass = classLoader.loadClass("Test");
+ Method initialize = testClass.getMethod("initialize", String.class);
+ initialize.invoke(null, args[0]);
+
+ // Invoke Test.nativeMethodWithAnnotation().
+ Method nativeMethodWithAnnotation = testClass.getMethod("nativeMethodWithAnnotation");
+ // Invoking the native method Test.nativeMethodWithAnnotation used
+ // to crash the Generic JNI trampoline during the resolution of
+ // the method's annotations (DummyAnnotation) (see b/38454151).
+ nativeMethodWithAnnotation.invoke(null);
+
+ zipFile.close();
+ System.out.println("passed");
+ }
+
+ // Create a class loader loading a Dex file in memory
+ // *without creating an Oat file*. This way, the Dex file won't be
+ // quickened and JNI stubs won't be compiled, thus forcing the use
+ // of Generic JNI when invoking the native method
+ // Test.nativeMethodWithAnnotation.
+ static ClassLoader createUnquickenedDexClassLoader(ByteBuffer dexBuffer) {
+ InMemoryDexClassLoader cl = new InMemoryDexClassLoader(dexBuffer, getBootClassLoader());
+ return cl;
+ }
+
+ static ClassLoader getBootClassLoader() {
+ ClassLoader cl = Main.class.getClassLoader();
+ while (cl.getParent() != null) {
+ cl = cl.getParent();
+ }
+ return cl;
+ }
+
+}
--- /dev/null
+/*
+ * 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 "jni.h"
+
+#include <iostream>
+
+namespace art {
+
+// Native method annotated with `DummyAnnotation` in Java source.
+extern "C" JNIEXPORT void JNICALL Java_Test_nativeMethodWithAnnotation(JNIEnv*, jclass) {
+ std::cout << "Java_Test_nativeMethodWithAnnotation" << std::endl;
+}
+
+} // namespace art
"626-const-class-linking/clear_dex_cache_types.cc",
"642-fp-callees/fp_callees.cc",
"647-jni-get-field-id/get_field_id.cc",
+ "656-annotation-lookup-generic-jni/test.cc"
],
shared_libs: [
"libbacktrace",
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