Mercurial > hg > graal-jvmci-8
annotate src/share/vm/classfile/resolutionErrors.hpp @ 2129:8f8dfba37802
6994753: Implement optional hook to a Java method at VM startup.
Reviewed-by: mchung, acorn
author | kevinw |
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date | Wed, 12 Jan 2011 15:44:16 +0000 |
parents | f95d63e2154a |
children | 3582bf76420e |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP |
26 #define SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP | |
27 | |
28 #include "oops/constantPoolOop.hpp" | |
29 #include "utilities/hashtable.hpp" | |
30 | |
0 | 31 class ResolutionErrorEntry; |
32 | |
33 // ResolutionError objects are used to record errors encountered during | |
34 // constant pool resolution (JVMS 5.4.3). | |
35 | |
36 class ResolutionErrorTable : public Hashtable { | |
37 | |
38 public: | |
39 ResolutionErrorTable(int table_size); | |
40 | |
41 ResolutionErrorEntry* new_entry(int hash, constantPoolOop pool, int cp_index, symbolOop error); | |
42 | |
43 ResolutionErrorEntry* bucket(int i) { | |
44 return (ResolutionErrorEntry*)Hashtable::bucket(i); | |
45 } | |
46 | |
47 ResolutionErrorEntry** bucket_addr(int i) { | |
48 return (ResolutionErrorEntry**)Hashtable::bucket_addr(i); | |
49 } | |
50 | |
51 void add_entry(int index, ResolutionErrorEntry* new_entry) { | |
52 Hashtable::add_entry(index, (HashtableEntry*)new_entry); | |
53 } | |
54 | |
55 void add_entry(int index, unsigned int hash, | |
56 constantPoolHandle pool, int which, symbolHandle error); | |
57 | |
58 | |
59 // find error given the constant pool and constant pool index | |
60 ResolutionErrorEntry* find_entry(int index, unsigned int hash, | |
61 constantPoolHandle pool, int cp_index); | |
62 | |
63 | |
64 unsigned int compute_hash(constantPoolHandle pool, int cp_index) { | |
65 return (unsigned int) pool->identity_hash() + cp_index; | |
66 } | |
67 | |
68 // purges unloaded entries from the table | |
69 void purge_resolution_errors(BoolObjectClosure* is_alive); | |
70 | |
71 // this table keeps symbolOops alive | |
72 void always_strong_classes_do(OopClosure* blk); | |
73 | |
74 // GC support. | |
75 void oops_do(OopClosure* f); | |
76 }; | |
77 | |
78 | |
79 class ResolutionErrorEntry : public HashtableEntry { | |
80 private: | |
81 int _cp_index; | |
82 symbolOop _error; | |
83 | |
84 public: | |
85 constantPoolOop pool() const { return (constantPoolOop)literal(); } | |
86 constantPoolOop* pool_addr() { return (constantPoolOop*)literal_addr(); } | |
87 | |
88 int cp_index() const { return _cp_index; } | |
89 void set_cp_index(int cp_index) { _cp_index = cp_index; } | |
90 | |
91 symbolOop error() const { return _error; } | |
92 void set_error(symbolOop e) { _error = e; } | |
93 symbolOop* error_addr() { return &_error; } | |
94 | |
95 ResolutionErrorEntry* next() const { | |
96 return (ResolutionErrorEntry*)HashtableEntry::next(); | |
97 } | |
98 | |
99 ResolutionErrorEntry** next_addr() { | |
100 return (ResolutionErrorEntry**)HashtableEntry::next_addr(); | |
101 } | |
102 | |
103 // GC support | |
104 void oops_do(OopClosure* blk); | |
105 }; | |
1972 | 106 |
107 #endif // SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP |