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1010
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1 /*
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2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * Copyright 2007, 2008, 2009 Red Hat, Inc.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
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22 * have any questions.
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23 *
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24 */
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25
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26 // A frame represents a physical stack frame on the Zero stack.
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27
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28 public:
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29 enum {
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30 pc_return_offset = 0
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31 };
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32
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33 // Constructor
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34 public:
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35 frame(intptr_t* sp, intptr_t* fp);
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36
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37 // The sp of a Zero frame is the address of the highest word in
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38 // that frame. We keep track of the lowest address too, so the
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39 // boundaries of the frame are available for debug printing.
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40 private:
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41 intptr_t* _fp;
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42
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43 public:
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44 intptr_t* fp() const {
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45 return _fp;
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46 }
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47
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48 #ifdef CC_INTERP
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49 inline interpreterState get_interpreterState() const;
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50 #endif // CC_INTERP
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51
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52 public:
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53 const ZeroFrame *zeroframe() const {
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54 return (ZeroFrame *) sp();
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55 }
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56
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57 const EntryFrame *zero_entryframe() const {
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58 return zeroframe()->as_entry_frame();
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59 }
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60 const InterpreterFrame *zero_interpreterframe() const {
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61 return zeroframe()->as_interpreter_frame();
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62 }
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63 const SharkFrame *zero_sharkframe() const {
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64 return zeroframe()->as_shark_frame();
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65 }
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66
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67 public:
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1078
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68 frame sender_for_nonentry_frame(RegisterMap* map) const;
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1010
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69
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70 public:
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71 void zero_print_on_error(int index,
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72 outputStream* st,
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73 char* buf,
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74 int buflen) const;
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