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1 /* |
1 /* |
2 * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved. |
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
32 private: |
32 private: |
33 int _pc_offset; // offset from start of nmethod |
33 int _pc_offset; // offset from start of nmethod |
34 int _scope_decode_offset; // offset for scope in nmethod |
34 int _scope_decode_offset; // offset for scope in nmethod |
35 int _obj_decode_offset; |
35 int _obj_decode_offset; |
36 |
36 |
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37 union PcDescFlags { |
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38 int word; |
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39 struct { |
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40 unsigned int reexecute: 1; |
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41 } bits; |
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42 } _flags; |
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43 |
37 public: |
44 public: |
38 int pc_offset() const { return _pc_offset; } |
45 int pc_offset() const { return _pc_offset; } |
39 int scope_decode_offset() const { return _scope_decode_offset; } |
46 int scope_decode_offset() const { return _scope_decode_offset; } |
40 int obj_decode_offset() const { return _obj_decode_offset; } |
47 int obj_decode_offset() const { return _obj_decode_offset; } |
41 |
48 |
51 // upper and lower exclusive limits real offsets: |
58 // upper and lower exclusive limits real offsets: |
52 lower_offset_limit = -1, |
59 lower_offset_limit = -1, |
53 upper_offset_limit = (unsigned int)-1 >> 1 |
60 upper_offset_limit = (unsigned int)-1 >> 1 |
54 }; |
61 }; |
55 |
62 |
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63 // Flags |
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64 bool should_reexecute() const { return _flags.bits.reexecute; } |
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65 void set_should_reexecute(bool z) { _flags.bits.reexecute = z; } |
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66 |
56 // Returns the real pc |
67 // Returns the real pc |
57 address real_pc(const nmethod* code) const; |
68 address real_pc(const nmethod* code) const; |
58 |
69 |
59 void print(nmethod* code); |
70 void print(nmethod* code); |
60 bool verify(nmethod* code); |
71 bool verify(nmethod* code); |