001 // This file is part of the program FRYSK. 002 // 003 // Copyright 2007, Red Hat Inc. 004 // 005 // FRYSK is free software; you can redistribute it and/or modify it 006 // under the terms of the GNU General Public License as published by 007 // the Free Software Foundation; version 2 of the License. 008 // 009 // FRYSK is distributed in the hope that it will be useful, but 010 // WITHOUT ANY WARRANTY; without even the implied warranty of 011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 // General Public License for more details. 013 // 014 // You should have received a copy of the GNU General Public License 015 // along with FRYSK; if not, write to the Free Software Foundation, 016 // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. 017 // 018 // In addition, as a special exception, Red Hat, Inc. gives You the 019 // additional right to link the code of FRYSK with code not covered 020 // under the GNU General Public License ("Non-GPL Code") and to 021 // distribute linked combinations including the two, subject to the 022 // limitations in this paragraph. Non-GPL Code permitted under this 023 // exception must only link to the code of FRYSK through those well 024 // defined interfaces identified in the file named EXCEPTION found in 025 // the source code files (the "Approved Interfaces"). The files of 026 // Non-GPL Code may instantiate templates or use macros or inline 027 // functions from the Approved Interfaces without causing the 028 // resulting work to be covered by the GNU General Public 029 // License. Only Red Hat, Inc. may make changes or additions to the 030 // list of Approved Interfaces. You must obey the GNU General Public 031 // License in all respects for all of the FRYSK code and other code 032 // used in conjunction with FRYSK except the Non-GPL Code covered by 033 // this exception. If you modify this file, you may extend this 034 // exception to your version of the file, but you are not obligated to 035 // do so. If you do not wish to provide this exception without 036 // modification, you must delete this exception statement from your 037 // version and license this file solely under the GPL without 038 // exception. 039 040 package frysk.scopes; 041 042 import lib.dwfl.DwAt; 043 import lib.dwfl.DwarfDie; 044 import frysk.value.ArithmeticType; 045 import frysk.value.StandardTypes; 046 import frysk.value.Type; 047 import frysk.value.Value; 048 import frysk.debuginfo.DebugInfoFrame; 049 import frysk.isa.ISA; 050 051 public class Enumerator extends Variable{ 052 053 Value value; 054 private Type type; 055 056 public Enumerator(DwarfDie variableDie) { 057 super(variableDie); 058 } 059 060 public Type getType(ISA isa) { 061 if(this.type == null){ 062 // FIXME: An enumerator is a type field, not a variable; 063 // and its type is not long. Should be refering to 064 // frysk.value.EnumType (constructed using TypeEntry for 065 // this enum information and its actual size. 066 this.type = StandardTypes.getLongType(isa.order()); 067 } 068 return type; 069 } 070 071 public Value getValue(DebugInfoFrame frame) { 072 if(this.value == null){ 073 // FIXME: An enumerator is a type field, not a variable; 074 // and its type is not long. Should be refering to 075 // frysk.value.EnumType (constructed using TypeEntry for 076 // this enum information and its actual size. 077 this.value = ((ArithmeticType)getType(frame.getTask().getISA())).createValue(getVariableDie().getAttrConstant(DwAt.CONST_VALUE)); 078 } 079 return value; 080 } 081 082 }