src/cpu/zero/vm/sharkFrame_zero.hpp

Fri, 27 Nov 2009 07:56:58 -0800

author
twisti
date
Fri, 27 Nov 2009 07:56:58 -0800
changeset 1513
8e7adf982378
parent 1445
354d3184f6b2
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6896043: first round of zero fixes
Reviewed-by: kvn
Contributed-by: Gary Benson <gbenson@redhat.com>

     1 /*
     2  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
     3  * Copyright 2008, 2009 Red Hat, Inc.
     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     5  *
     6  * This code is free software; you can redistribute it and/or modify it
     7  * under the terms of the GNU General Public License version 2 only, as
     8  * published by the Free Software Foundation.
     9  *
    10  * This code is distributed in the hope that it will be useful, but WITHOUT
    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    13  * version 2 for more details (a copy is included in the LICENSE file that
    14  * accompanied this code).
    15  *
    16  * You should have received a copy of the GNU General Public License version
    17  * 2 along with this work; if not, write to the Free Software Foundation,
    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    19  *
    20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    21  * CA 95054 USA or visit www.sun.com if you need additional information or
    22  * have any questions.
    23  *
    24  */
    26 // |  ...               |
    27 // +--------------------+  ------------------
    28 // | stack slot n-1     |       low addresses
    29 // |  ...               |
    30 // | stack slot 0       |
    31 // | monitor m-1        |
    32 // |  ...               |
    33 // | monitor 0          |
    34 // | oop_tmp            |
    35 // | method             |
    36 // | unextended_sp      |
    37 // | pc                 |
    38 // | frame_type         |
    39 // | next_frame         |      high addresses
    40 // +--------------------+  ------------------
    41 // |  ...               |
    43 class SharkFrame : public ZeroFrame {
    44   friend class SharkStack;
    46  private:
    47   SharkFrame() : ZeroFrame() {
    48     ShouldNotCallThis();
    49   }
    51  protected:
    52   enum Layout {
    53     pc_off = jf_header_words,
    54     unextended_sp_off,
    55     method_off,
    56     oop_tmp_off,
    57     header_words
    58   };
    60  public:
    61   address pc() const {
    62     return (address) value_of_word(pc_off);
    63   }
    65   intptr_t* unextended_sp() const {
    66     return (intptr_t *) value_of_word(unextended_sp_off);
    67   }
    69   methodOop method() const {
    70     return (methodOop) value_of_word(method_off);
    71   }
    73  public:
    74   void identify_word(int   frame_index,
    75                      int   offset,
    76                      char* fieldbuf,
    77                      char* valuebuf,
    78                      int   buflen) const;
    79 };

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