ART: Add JNI API
Add support for GetJNIFunctionTable and SetJNIFunctionTable. Add
tests.
Bug: 34343708
Test: m test-art-host-run-test-928-jni-table
Change-Id: Ib9fafbac2781c570aa6eacf5242afbbf6c3ee7a9
diff --git a/runtime/openjdkjvmti/ti_jni.h b/runtime/openjdkjvmti/ti_jni.h
new file mode 100644
index 0000000..906aab0
--- /dev/null
+++ b/runtime/openjdkjvmti/ti_jni.h
@@ -0,0 +1,58 @@
+/* Copyright (C) 2017 The Android Open Source Project
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This file implements interfaces from the file jvmti.h. This implementation
+ * is licensed under the same terms as the file jvmti.h. The
+ * copyright and license information for the file jvmti.h follows.
+ *
+ * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#ifndef ART_RUNTIME_OPENJDKJVMTI_TI_JNI_H_
+#define ART_RUNTIME_OPENJDKJVMTI_TI_JNI_H_
+
+#include "jni.h"
+#include "jvmti.h"
+
+namespace openjdkjvmti {
+
+// Note: Currently, JNI function table changes are sensitive to the order of operations wrt/
+// CheckJNI. If an agent sets the function table, and a program than late-enables CheckJNI,
+// CheckJNI will not be working (as the agent will forward to the non-CheckJNI table).
+//
+// This behavior results from our usage of the function table to avoid a check of the
+// CheckJNI flag. A future implementation may install on loading of this plugin an
+// intermediate function table that explicitly checks the flag, so that switching CheckJNI
+// is transparently handled.
+
+class JNIUtil {
+ public:
+ static jvmtiError SetJNIFunctionTable(jvmtiEnv* env, const jniNativeInterface* function_table);
+
+ static jvmtiError GetJNIFunctionTable(jvmtiEnv* env, jniNativeInterface** function_table);
+};
+
+} // namespace openjdkjvmti
+
+#endif // ART_RUNTIME_OPENJDKJVMTI_TI_JNI_H_