1 /* |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #ifndef CPU_ZERO_VM_SHARKFRAME_ZERO_HPP |
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27 #define CPU_ZERO_VM_SHARKFRAME_ZERO_HPP |
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28 |
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29 #include "oops/method.hpp" |
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30 #include "stack_zero.hpp" |
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31 |
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32 // | ... | |
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33 // +--------------------+ ------------------ |
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34 // | stack slot n-1 | low addresses |
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35 // | ... | |
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36 // | stack slot 0 | |
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37 // | monitor m-1 | |
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38 // | ... | |
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39 // | monitor 0 | |
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40 // | oop_tmp | |
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41 // | method | |
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42 // | unextended_sp | |
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43 // | pc | |
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44 // | frame_type | |
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45 // | next_frame | high addresses |
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46 // +--------------------+ ------------------ |
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47 // | ... | |
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48 |
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49 class SharkFrame : public ZeroFrame { |
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50 friend class SharkStack; |
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51 |
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52 private: |
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53 SharkFrame() : ZeroFrame() { |
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54 ShouldNotCallThis(); |
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55 } |
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56 |
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57 protected: |
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58 enum Layout { |
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59 pc_off = jf_header_words, |
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60 unextended_sp_off, |
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61 method_off, |
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62 oop_tmp_off, |
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63 header_words |
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64 }; |
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65 |
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66 public: |
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67 address pc() const { |
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68 return (address) value_of_word(pc_off); |
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69 } |
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70 |
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71 void set_pc(address pc) const { |
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72 *((address*) addr_of_word(pc_off)) = pc; |
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73 } |
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74 |
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75 intptr_t* unextended_sp() const { |
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76 return (intptr_t *) value_of_word(unextended_sp_off); |
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77 } |
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78 |
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79 Method* method() const { |
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80 return (Method*) value_of_word(method_off); |
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81 } |
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82 |
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83 public: |
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84 void identify_word(int frame_index, |
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85 int offset, |
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86 char* fieldbuf, |
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87 char* valuebuf, |
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88 int buflen) const; |
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89 }; |
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90 |
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91 #endif // CPU_ZERO_VM_SHARKFRAME_ZERO_HPP |
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