Mercurial > hg > graal-compiler
annotate src/share/vm/code/pcDesc.hpp @ 1476:1f81c0d18c75
Build also release version of VM. Fix towards making SpecJVM2008 run.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
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date | Fri, 26 Nov 2010 12:12:35 +0100 |
parents | f70b0d9ab095 |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
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2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
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 | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // PcDescs map a physical PC (given as offset from start of nmethod) to | |
26 // the corresponding source scope and byte code index. | |
27 | |
28 class nmethod; | |
29 | |
30 class PcDesc VALUE_OBJ_CLASS_SPEC { | |
31 friend class VMStructs; | |
32 private: | |
33 int _pc_offset; // offset from start of nmethod | |
34 int _scope_decode_offset; // offset for scope in nmethod | |
35 int _obj_decode_offset; | |
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 unsigned int is_method_handle_invoke: 1; |
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42 unsigned int return_oop: 1; |
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43 } bits; |
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44 bool operator ==(const PcDescFlags& other) { return word == other.word; } |
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45 } _flags; |
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46 |
0 | 47 public: |
48 int pc_offset() const { return _pc_offset; } | |
49 int scope_decode_offset() const { return _scope_decode_offset; } | |
50 int obj_decode_offset() const { return _obj_decode_offset; } | |
51 | |
52 void set_pc_offset(int x) { _pc_offset = x; } | |
53 void set_scope_decode_offset(int x) { _scope_decode_offset = x; } | |
54 void set_obj_decode_offset(int x) { _obj_decode_offset = x; } | |
55 | |
56 // Constructor (only used for static in nmethod.cpp) | |
57 // Also used by ScopeDesc::sender()] | |
58 PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset); | |
59 | |
60 enum { | |
61 // upper and lower exclusive limits real offsets: | |
62 lower_offset_limit = -1, | |
63 upper_offset_limit = (unsigned int)-1 >> 1 | |
64 }; | |
65 | |
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66 // Flags |
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67 bool should_reexecute() const { return _flags.bits.reexecute; } |
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68 void set_should_reexecute(bool z) { _flags.bits.reexecute = z; } |
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69 |
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70 // Does pd refer to the same information as pd? |
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71 bool is_same_info(const PcDesc* pd) { |
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72 return _scope_decode_offset == pd->_scope_decode_offset && |
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73 _obj_decode_offset == pd->_obj_decode_offset && |
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74 _flags == pd->_flags; |
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75 } |
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76 |
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77 bool is_method_handle_invoke() const { return _flags.bits.is_method_handle_invoke; } |
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78 void set_is_method_handle_invoke(bool z) { _flags.bits.is_method_handle_invoke = z; } |
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79 |
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80 bool return_oop() const { return _flags.bits.return_oop; } |
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81 void set_return_oop(bool z) { _flags.bits.return_oop = z; } |
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82 |
0 | 83 // Returns the real pc |
84 address real_pc(const nmethod* code) const; | |
85 | |
86 void print(nmethod* code); | |
87 bool verify(nmethod* code); | |
88 }; |