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hotspot/src/share/vm/interpreter/cppInterpreter.hpp

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+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#ifdef CC_INTERP
+
+// This file contains the platform-independant parts
+// of the c++ interpreter
+
+class CppInterpreter: public AbstractInterpreter {
+  friend class VMStructs;
+  friend class Interpreter; // contains()
+  friend class InterpreterGenerator; // result handlers
+  friend class CppInterpreterGenerator; // result handlers
+ public:
+
+
+ protected:
+
+  // tosca result -> stack result
+  static address    _tosca_to_stack[number_of_result_handlers];  // converts tosca to C++ interpreter stack result
+  // stack result -> stack result
+  static address    _stack_to_stack[number_of_result_handlers];  // pass result between C++ interpreter calls
+  // stack result -> native abi result
+  static address    _stack_to_native_abi[number_of_result_handlers];  // converts C++ interpreter results to native abi
+
+  // this is to allow frame and only frame to use contains().
+  friend class      frame;
+
+ public:
+  // Initialization/debugging
+  static void       initialize();
+  // this only returns whether a pc is within generated code for the interpreter.
+
+  // This is a moderately dubious interface for the c++ interpreter. Only
+  // frame code and debug.cpp should be using it.
+  static bool       contains(address pc);
+
+ public:
+
+
+  // No displatch table to switch so no need for these to do anything special
+  static void notice_safepoints() {}
+  static void ignore_safepoints() {}
+
+  static address    native_result_to_tosca()                    { return (address)_native_abi_to_tosca; } // aka result handler
+  static address    tosca_result_to_stack()                     { return (address)_tosca_to_stack; }
+  static address    stack_result_to_stack()                     { return (address)_stack_to_stack; }
+  static address    stack_result_to_native()                    { return (address)_stack_to_native_abi; }
+
+  static address    native_result_to_tosca(int index)           { return _native_abi_to_tosca[index]; } // aka result handler
+  static address    tosca_result_to_stack(int index)            { return _tosca_to_stack[index]; }
+  static address    stack_result_to_stack(int index)            { return _stack_to_stack[index]; }
+  static address    stack_result_to_native(int index)           { return _stack_to_native_abi[index]; }
+
+  static address    return_entry  (TosState state, int length);
+  static address    deopt_entry   (TosState state, int length);
+
+#include "incls/_cppInterpreter_pd.hpp.incl"
+
+};
+
+#endif // CC_INTERP