Mercurial > hg > truffle
annotate src/share/vm/oops/constantPoolKlass.hpp @ 1681:126ea7725993
6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes
| author | bobv |
|---|---|
| date | Tue, 03 Aug 2010 08:13:38 -0400 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2009, 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 constantPoolKlass is the klass of a constantPoolOop | |
| 26 | |
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27 class constantPoolKlass : public Klass { |
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28 juint _alloc_size; // allocation profiling support |
| 0 | 29 public: |
| 30 // Dispatched klass operations | |
| 31 bool oop_is_constantPool() const { return true; } | |
| 32 int oop_size(oop obj) const; | |
| 33 int klass_oop_size() const { return object_size(); } | |
| 34 | |
| 35 // Allocation | |
| 36 DEFINE_ALLOCATE_PERMANENT(constantPoolKlass); | |
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37 constantPoolOop allocate(int length, bool is_conc_safe, TRAPS); |
| 0 | 38 static klassOop create_klass(TRAPS); |
| 39 | |
| 40 // Casting from klassOop | |
| 41 static constantPoolKlass* cast(klassOop k) { | |
| 42 assert(k->klass_part()->oop_is_constantPool(), "cast to constantPoolKlass"); | |
| 43 return (constantPoolKlass*) k->klass_part(); | |
| 44 } | |
| 45 | |
| 46 // Sizing | |
| 47 static int header_size() { return oopDesc::header_size() + sizeof(constantPoolKlass)/HeapWordSize; } | |
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48 int object_size() const { return align_object_size(header_size()); } |
| 0 | 49 |
| 50 // Garbage collection | |
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51 // Returns true is the object is safe for GC concurrent processing. |
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52 virtual bool oop_is_conc_safe(oop obj) const; |
| 0 | 53 void oop_follow_contents(oop obj); |
| 54 int oop_adjust_pointers(oop obj); | |
| 55 | |
| 56 // Parallel Scavenge and Parallel Old | |
| 57 PARALLEL_GC_DECLS | |
| 58 | |
| 59 // Iterators | |
| 60 int oop_oop_iterate(oop obj, OopClosure* blk); | |
| 61 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); | |
| 62 | |
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63 // Allocation profiling support |
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64 juint alloc_size() const { return _alloc_size; } |
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65 void set_alloc_size(juint n) { _alloc_size = n; } |
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66 |
| 0 | 67 // Printing |
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68 void oop_print_value_on(oop obj, outputStream* st); |
| 0 | 69 void oop_print_on(oop obj, outputStream* st); |
| 70 | |
| 71 // Verification | |
| 72 const char* internal_name() const; | |
| 73 void oop_verify_on(oop obj, outputStream* st); | |
| 74 // tells whether obj is partially constructed (gc during class loading) | |
| 75 bool oop_partially_loaded(oop obj) const; | |
| 76 void oop_set_partially_loaded(oop obj); | |
| 77 #ifndef PRODUCT | |
| 78 // Compile the world support | |
| 79 static void preload_and_initialize_all_classes(oop constant_pool, TRAPS); | |
| 80 #endif | |
| 81 }; |