Mercurial > hg > graal-compiler
annotate src/share/vm/oops/klassKlass.hpp @ 1649:a528509c992b
6968336: VM crash guarantee(!nm->is_zombie()) failed: cannot lock a zombie method
Reviewed-by: twisti
author | never |
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date | Thu, 15 Jul 2010 08:54:48 -0700 |
parents | c18cbe5936b8 |
children | 126ea7725993 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2006, 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 | |
25 // A klassKlass serves as the fix point of the klass chain. | |
26 // The klass of klassKlass is itself. | |
27 | |
28 class klassKlass: public Klass { | |
29 friend class VMStructs; | |
30 private: | |
31 juint _alloc_size; // allocation profiling support | |
32 public: | |
33 // Testing | |
34 bool oop_is_klass() const { return true; } | |
35 bool is_leaf_class() const { return true; } | |
36 | |
37 // Sizing | |
38 int oop_size(oop obj) const; | |
39 int klass_oop_size() const { return object_size(); } | |
40 | |
41 // Allocation | |
42 DEFINE_ALLOCATE_PERMANENT(klassKlass); | |
43 static klassOop create_klass(TRAPS ); | |
44 | |
45 // Casting from klassOop | |
46 static klassKlass* cast(klassOop k) { | |
47 assert(k->klass_part()->oop_is_klass(), "cast to klassKlass"); | |
48 return (klassKlass*) k->klass_part(); | |
49 } | |
50 | |
51 // Sizing | |
52 static int header_size() { return oopDesc::header_size() + sizeof(klassKlass)/HeapWordSize; } | |
53 int object_size() const { return align_object_size(header_size()); } | |
54 | |
55 // Garbage collection | |
56 void oop_follow_contents(oop obj); | |
57 int oop_adjust_pointers(oop obj); | |
58 | |
59 // Parallel Scavenge and Parallel Old | |
60 PARALLEL_GC_DECLS | |
61 | |
62 // Iterators | |
63 int oop_oop_iterate(oop obj, OopClosure* blk); | |
64 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); | |
65 | |
66 // Allocation profiling support | |
67 juint alloc_size() const { return _alloc_size; } | |
68 void set_alloc_size(juint n) { _alloc_size = n; } | |
69 | |
70 public: | |
71 // Printing | |
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72 void oop_print_value_on(oop obj, outputStream* st); |
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73 #ifndef PRODUCT |
0 | 74 void oop_print_on (oop obj, outputStream* st); |
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75 #endif //PRODUCT |
0 | 76 |
77 // Verification | |
78 const char* internal_name() const; | |
79 void oop_verify_on(oop obj, outputStream* st); | |
80 }; |