--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/graal/graalInterpreterToVM.cpp	Tue Jul 03 16:56:40 2012 +0200
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 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.
+ *
+ * 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.
+ */
+
+#include "precompiled.hpp"
+#include "prims/jni.h"
+#include "graal/graalInterpreterToVM.hpp"
+#include "graal/graalCompiler.hpp"
+#include "graal/graalCompilerToVM.hpp"
+
+#ifdef HIGH_LEVEL_INTERPRETER
+
+// public Object invoke(HotSpotResolvedJavaMethod method, boolean highLevel, Object... args);
+JNIEXPORT jobject JNICALL Java_com_oracle_graal_hotspot_HotSpotRuntimeInterpreterInterface_invoke(JNIEnv *env, jobject, jobject method, jobject args) {
+  TRACE_graal_3("InterpreterToVM::invoke");
+
+  VM_ENTRY_MARK;
+  HandleMark hm;
+  
+  assert(method != NULL, "just checking");
+  assert(thread->is_Java_thread(), "must be");
+  methodHandle mh = getMethodFromHotSpotMethod(method);
+    
+  JavaCallArguments jca;
+  JavaArgumentUnboxer jap(mh->signature(), &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
+  
+#ifndef PRODUCT
+  if (PrintHighLevelInterpreterVMTransitions) {
+    ResourceMark rm;
+    tty->print_cr("High level interpreter -> VM (%s)", mh->name_and_sig_as_C_string());
+  }
+#endif
+
+  JavaValue result(jap.get_ret_type());
+  thread->set_high_level_interpreter_in_vm(true);
+  JavaCalls::call(&result, mh, &jca, THREAD);
+  thread->set_high_level_interpreter_in_vm(false);
+
+#ifndef PRODUCT
+  if (PrintHighLevelInterpreterVMTransitions) {
+    ResourceMark rm;
+    tty->print_cr("VM (%s) -> high level interpreter", mh->name_and_sig_as_C_string());
+  }
+#endif
+
+  if (thread->has_pending_exception()) {
+    return NULL;
+  }
+
+  if (jap.get_ret_type() == T_VOID) {
+    return NULL;
+  } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
+    return JNIHandles::make_local((oop) result.get_jobject());
+  } else {
+    oop o = java_lang_boxing_object::create(jap.get_ret_type(), (jvalue *) result.get_value_addr(), CHECK_NULL);
+    return JNIHandles::make_local(o);
+  }
+}
+
+#define CC (char*)  /*cast a literal from (const char*)*/
+#define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(Java_com_oracle_graal_hotspot_HotSpotRuntimeInterpreterInterface_##f))
+
+#define RESOLVED_METHOD "Lcom/oracle/graal/api/meta/ResolvedJavaMethod;"
+#define OBJECT          "Ljava/lang/Object;"
+
+JNINativeMethod InterpreterToVM_methods[] = {
+  {CC"invoke",                     CC"("RESOLVED_METHOD "["OBJECT")"OBJECT,     FN_PTR(invoke)}
+};
+
+int InterpreterToVM_methods_count() {
+  return sizeof(InterpreterToVM_methods) / sizeof(JNINativeMethod);
+}
+
+#endif // HIGH_LEVEL_INTERPRETER