/*+
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 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.+
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 * Copyright 2008, 2009 Red Hat, Inc.+
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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 *+
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 * This code is free software; you can redistribute it and/or modify it+
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 * under the terms of the GNU General Public License version 2 only, as+
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 * published by the Free Software Foundation.+
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 *+
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 * This code is distributed in the hope that it will be useful, but WITHOUT+
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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 * version 2 for more details (a copy is included in the LICENSE file that+
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 * accompanied this code).+
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 *+
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 * You should have received a copy of the GNU General Public License version+
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 * 2 along with this work; if not, write to the Free Software Foundation,+
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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 *+
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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 * or visit www.oracle.com if you need additional information or have any+
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 * questions.+
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 *+
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 */+
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+
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#ifndef CPU_ZERO_VM_SHARKFRAME_ZERO_HPP+
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#define CPU_ZERO_VM_SHARKFRAME_ZERO_HPP+
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+
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#include "oops/method.hpp"+
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#include "stack_zero.hpp"+
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+
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// |  ...               |+
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// +--------------------+  ------------------+
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// | stack slot n-1     |       low addresses+
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// |  ...               |+
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// | stack slot 0       |+
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// | monitor m-1        |+
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// |  ...               |+
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// | monitor 0          |+
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// | oop_tmp            |+
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// | method             |+
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// | unextended_sp      |+
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// | pc                 |+
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// | frame_type         |+
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// | next_frame         |      high addresses+
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// +--------------------+  ------------------+
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// |  ...               |+
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+
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class SharkFrame : public ZeroFrame {+
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  friend class SharkStack;+
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+
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 private:+
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  SharkFrame() : ZeroFrame() {+
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    ShouldNotCallThis();+
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  }+
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+
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 protected:+
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  enum Layout {+
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    pc_off = jf_header_words,+
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    unextended_sp_off,+
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    method_off,+
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    oop_tmp_off,+
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    header_words+
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  };+
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+
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 public:+
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  address pc() const {+
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    return (address) value_of_word(pc_off);+
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  }+
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+
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  intptr_t* unextended_sp() const {+
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    return (intptr_t *) value_of_word(unextended_sp_off);+
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  }+
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+
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  Method* method() const {+
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    return (Method*) value_of_word(method_off);+
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  }+
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+
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 public:+
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  void identify_word(int   frame_index,+
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                     int   offset,+
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                     char* fieldbuf,+
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                     char* valuebuf,+
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                     int   buflen) const;+
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};+
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+
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#endif // CPU_ZERO_VM_SHARKFRAME_ZERO_HPP+
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