Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/reflectionUtils.cpp @ 8804:91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
Summary: In 64bit VM move CDS archive address to 32G on all platforms using new flag SharedBaseAddress. In 32bit VM set CDS archive address to 3Gb on Linux and let other OSs pick the address.
Reviewed-by: kvn, dcubed, zgu, hseigel
| author | coleenp |
|---|---|
| date | Wed, 20 Mar 2013 08:04:54 -0400 |
| parents | da91efe96a93 |
| children | e522a00b91aa ac9cb1d5a202 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2012, 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 #include "precompiled.hpp" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "memory/universe.inline.hpp" | |
| 28 #include "runtime/reflectionUtils.hpp" | |
| 0 | 29 |
| 30 KlassStream::KlassStream(instanceKlassHandle klass, bool local_only, bool classes_only) { | |
| 31 _klass = klass; | |
| 32 if (classes_only) { | |
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33 _interfaces = Universe::the_empty_klass_array(); |
| 0 | 34 } else { |
| 35 _interfaces = klass->transitive_interfaces(); | |
| 36 } | |
| 37 _interface_index = _interfaces->length(); | |
| 38 _local_only = local_only; | |
| 39 _classes_only = classes_only; | |
| 40 } | |
| 41 | |
| 42 bool KlassStream::eos() { | |
| 43 if (index() >= 0) return false; | |
| 44 if (_local_only) return true; | |
| 45 if (!_klass->is_interface() && _klass->super() != NULL) { | |
| 46 // go up superclass chain (not for interfaces) | |
| 47 _klass = _klass->super(); | |
| 48 } else { | |
| 49 if (_interface_index > 0) { | |
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50 _klass = _interfaces->at(--_interface_index); |
| 0 | 51 } else { |
| 52 return true; | |
| 53 } | |
| 54 } | |
| 55 _index = length(); | |
| 56 next(); | |
| 57 return eos(); | |
| 58 } | |
| 59 | |
| 60 | |
| 61 GrowableArray<FilteredField*> *FilteredFieldsMap::_filtered_fields = | |
| 6197 | 62 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<FilteredField*>(3,true); |
| 0 | 63 |
| 64 | |
| 65 void FilteredFieldsMap::initialize() { | |
| 66 int offset; | |
| 67 offset = java_lang_Throwable::get_backtrace_offset(); | |
| 1142 | 68 _filtered_fields->append(new FilteredField(SystemDictionary::Throwable_klass(), offset)); |
| 0 | 69 // The latest version of vm may be used with old jdk. |
| 70 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 71 // The following class fields do not exist in | |
| 72 // previous version of jdk. | |
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6964458: Reimplement class meta-data storage to use native memory
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73 offset = sun_reflect_ConstantPool::oop_offset(); |
| 1142 | 74 _filtered_fields->append(new FilteredField(SystemDictionary::reflect_ConstantPool_klass(), offset)); |
| 0 | 75 offset = sun_reflect_UnsafeStaticFieldAccessorImpl::base_offset(); |
| 1142 | 76 _filtered_fields->append(new FilteredField(SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(), offset)); |
| 0 | 77 } |
| 78 } | |
| 79 | |
| 80 int FilteredFieldStream::field_count() { | |
| 81 int numflds = 0; | |
| 82 for (;!eos(); next()) { | |
| 83 numflds++; | |
| 84 } | |
| 85 return numflds; | |
| 86 } |