--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/jni/jfrJavaCall.hpp Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2017, 2018, 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.
+ *
+ */
+
+#ifndef SHARE_VM_JFR_JNI_JFRJAVACALL_HPP
+#define SHARE_VM_JFR_JNI_JFRJAVACALL_HPP
+
+#include "jni.h"
+#include "jfr/utilities/jfrAllocation.hpp"
+#include "utilities/exceptions.hpp"
+
+class JavaCallArguments;
+class JavaThread;
+class JavaValue;
+class Klass;
+class Symbol;
+
+class JfrJavaArguments : public StackObj {
+ friend class JfrJavaCall;
+ public:
+ JfrJavaArguments(JavaValue* result);
+ JfrJavaArguments(JavaValue* result, const char* klass_name, const char* name, const char* signature, TRAPS);
+ JfrJavaArguments(JavaValue* result, const Klass* klass, const Symbol* name, const Symbol* signature);
+
+ Klass* klass() const;
+ void set_klass(const char* klass_name, TRAPS);
+ void set_klass(const Klass* klass);
+
+ Symbol* name() const;
+ void set_name(const char* name, TRAPS);
+ void set_name(const Symbol* name);
+
+ Symbol* signature() const;
+ void set_signature(const char* signature, TRAPS);
+ void set_signature(const Symbol* signature);
+
+ int array_length() const;
+ void set_array_length(int length);
+
+ JavaValue* result() const;
+
+ bool has_receiver() const;
+ void set_receiver(const oop receiver);
+ void set_receiver(Handle receiver);
+ oop receiver() const;
+
+ // parameters
+ void push_oop(const oop obj);
+ void push_oop(Handle h_obj);
+ void push_jobject(jobject h);
+ void push_int(jint i);
+ void push_double(jdouble d);
+ void push_long(jlong l);
+ void push_float(jfloat f);
+
+ int length() const;
+ const JavaValue& param(int idx) const;
+
+ private:
+ class Parameters {
+ friend class JfrJavaArguments;
+ private:
+ enum { SIZE = 16};
+ JavaValue _storage[SIZE];
+ int _storage_index;
+ int _java_stack_slots;
+
+ Parameters();
+ Parameters(const Parameters&); // no impl
+ Parameters& operator=(const Parameters&); // no impl
+
+ void push(const JavaValue& value);
+ void push_large(const JavaValue& value);
+
+ void push_oop(const oop obj);
+ void push_oop(Handle h_obj);
+ void push_jobject(jobject h);
+ void push_jint(jint i);
+ void push_jdouble(jdouble d);
+ void push_jlong(jlong l);
+ void push_jfloat(jfloat f);
+
+ bool has_receiver() const;
+ void set_receiver(const oop receiver);
+ void set_receiver(Handle receiver);
+ oop receiver() const;
+
+ int length() const;
+ int java_stack_slots() const;
+
+ void copy(JavaCallArguments& args, TRAPS) const;
+ const JavaValue& values(int idx) const;
+ };
+
+ Parameters _params;
+ const JavaValue* const _result;
+ const Klass* _klass;
+ const Symbol* _name;
+ const Symbol* _signature;
+ int _array_length;
+
+ int java_call_arg_slots() const;
+ void copy(JavaCallArguments& args, TRAPS);
+};
+
+class JfrJavaCall : public AllStatic {
+ friend class JfrJavaSupport;
+ private:
+ static void call_static(JfrJavaArguments* args, TRAPS);
+ static void call_special(JfrJavaArguments* args, TRAPS);
+ static void call_virtual(JfrJavaArguments* args, TRAPS);
+};
+
+#endif // SHARE_VM_JFR_JNI_JFRJAVACALL_HPP