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annotate src/share/vm/ci/ciObjArrayKlass.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children | 3582bf76420e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1999, 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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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "ci/ciInstanceKlass.hpp" | |
| 27 #include "ci/ciObjArrayKlass.hpp" | |
| 28 #include "ci/ciObjArrayKlassKlass.hpp" | |
| 29 #include "ci/ciSymbol.hpp" | |
| 30 #include "ci/ciUtilities.hpp" | |
| 31 #include "oops/objArrayKlass.hpp" | |
| 0 | 32 |
| 33 // ciObjArrayKlass | |
| 34 // | |
| 35 // This class represents a klassOop in the HotSpot virtual machine | |
| 36 // whose Klass part is an objArrayKlass. | |
| 37 | |
| 38 // ------------------------------------------------------------------ | |
| 39 // ciObjArrayKlass::ciObjArrayKlass | |
| 40 // | |
| 41 // Constructor for loaded object array klasses. | |
| 42 ciObjArrayKlass::ciObjArrayKlass(KlassHandle h_k) : ciArrayKlass(h_k) { | |
| 43 assert(get_Klass()->oop_is_objArray(), "wrong type"); | |
| 44 klassOop element_klassOop = get_objArrayKlass()->bottom_klass(); | |
| 45 _base_element_klass = CURRENT_ENV->get_object(element_klassOop)->as_klass(); | |
| 46 assert(_base_element_klass->is_instance_klass() || | |
| 47 _base_element_klass->is_type_array_klass(), "bad base klass"); | |
| 48 if (dimension() == 1) { | |
| 49 _element_klass = _base_element_klass; | |
| 50 } else { | |
| 51 _element_klass = NULL; | |
| 52 } | |
| 53 if (!ciObjectFactory::is_initialized()) { | |
| 54 assert(_element_klass->is_java_lang_Object(), "only arrays of object are shared"); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 // ------------------------------------------------------------------ | |
| 59 // ciObjArrayKlass::ciObjArrayKlass | |
| 60 // | |
| 61 // Constructor for unloaded object array klasses. | |
| 62 ciObjArrayKlass::ciObjArrayKlass(ciSymbol* array_name, | |
| 63 ciKlass* base_element_klass, | |
| 64 int dimension) | |
| 65 : ciArrayKlass(array_name, | |
| 66 dimension, | |
| 67 ciObjArrayKlassKlass::make()) { | |
| 68 _base_element_klass = base_element_klass; | |
| 69 assert(_base_element_klass->is_instance_klass() || | |
| 70 _base_element_klass->is_type_array_klass(), "bad base klass"); | |
| 71 if (dimension == 1) { | |
| 72 _element_klass = base_element_klass; | |
| 73 } else { | |
| 74 _element_klass = NULL; | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 // ------------------------------------------------------------------ | |
| 79 // ciObjArrayKlass::element_klass | |
| 80 // | |
| 81 // What is the one-level element type of this array? | |
| 82 ciKlass* ciObjArrayKlass::element_klass() { | |
| 83 if (_element_klass == NULL) { | |
| 84 assert(dimension() > 1, "_element_klass should not be NULL"); | |
| 85 // Produce the element klass. | |
| 86 if (is_loaded()) { | |
| 87 VM_ENTRY_MARK; | |
| 88 klassOop element_klassOop = get_objArrayKlass()->element_klass(); | |
| 89 _element_klass = CURRENT_THREAD_ENV->get_object(element_klassOop)->as_klass(); | |
| 90 } else { | |
| 91 VM_ENTRY_MARK; | |
| 92 // We are an unloaded array klass. Attempt to fetch our | |
| 93 // element klass by name. | |
| 94 _element_klass = CURRENT_THREAD_ENV->get_klass_by_name_impl( | |
| 95 this, | |
| 96 construct_array_name(base_element_klass()->name(), | |
| 97 dimension() - 1), | |
| 98 false); | |
| 99 } | |
| 100 } | |
| 101 return _element_klass; | |
| 102 } | |
| 103 | |
| 104 // ------------------------------------------------------------------ | |
| 105 // ciObjArrayKlass::construct_array_name | |
| 106 // | |
| 107 // Build an array name from an element name and a dimension. | |
| 108 ciSymbol* ciObjArrayKlass::construct_array_name(ciSymbol* element_name, | |
| 109 int dimension) { | |
| 110 EXCEPTION_CONTEXT; | |
| 111 int element_len = element_name->utf8_length(); | |
| 112 | |
| 113 symbolOop base_name_sym = element_name->get_symbolOop(); | |
| 114 char* name; | |
| 115 | |
| 116 if (base_name_sym->byte_at(0) == '[' || | |
| 117 (base_name_sym->byte_at(0) == 'L' && // watch package name 'Lxx' | |
| 118 base_name_sym->byte_at(element_len-1) == ';')) { | |
| 119 | |
| 120 int new_len = element_len + dimension + 1; // for the ['s and '\0' | |
| 121 name = CURRENT_THREAD_ENV->name_buffer(new_len); | |
| 122 | |
| 123 int pos = 0; | |
| 124 for ( ; pos < dimension; pos++) { | |
| 125 name[pos] = '['; | |
| 126 } | |
| 127 strncpy(name+pos, (char*)element_name->base(), element_len); | |
| 128 name[new_len-1] = '\0'; | |
| 129 } else { | |
| 130 int new_len = 3 // for L, ;, and '\0' | |
| 131 + dimension // for ['s | |
| 132 + element_len; | |
| 133 | |
| 134 name = CURRENT_THREAD_ENV->name_buffer(new_len); | |
| 135 int pos = 0; | |
| 136 for ( ; pos < dimension; pos++) { | |
| 137 name[pos] = '['; | |
| 138 } | |
| 139 name[pos++] = 'L'; | |
| 140 strncpy(name+pos, (char*)element_name->base(), element_len); | |
| 141 name[new_len-2] = ';'; | |
| 142 name[new_len-1] = '\0'; | |
| 143 } | |
| 144 return ciSymbol::make(name); | |
| 145 } | |
| 146 | |
| 147 // ------------------------------------------------------------------ | |
| 148 // ciObjArrayKlass::make_impl | |
| 149 // | |
| 150 // Implementation of make. | |
| 151 ciObjArrayKlass* ciObjArrayKlass::make_impl(ciKlass* element_klass) { | |
| 152 | |
| 153 if (element_klass->is_loaded()) { | |
| 154 EXCEPTION_CONTEXT; | |
| 155 // The element klass is loaded | |
| 156 klassOop array = element_klass->get_Klass()->array_klass(THREAD); | |
| 157 if (HAS_PENDING_EXCEPTION) { | |
| 158 CLEAR_PENDING_EXCEPTION; | |
| 159 CURRENT_THREAD_ENV->record_out_of_memory_failure(); | |
| 160 return ciEnv::unloaded_ciobjarrayklass(); | |
| 161 } | |
| 162 return CURRENT_THREAD_ENV->get_object(array)->as_obj_array_klass(); | |
| 163 } | |
| 164 | |
| 165 // The array klass was unable to be made or the element klass was | |
| 166 // not loaded. | |
| 167 ciSymbol* array_name = construct_array_name(element_klass->name(), 1); | |
| 168 if (array_name == ciEnv::unloaded_cisymbol()) { | |
| 169 return ciEnv::unloaded_ciobjarrayklass(); | |
| 170 } | |
| 171 return | |
| 172 CURRENT_ENV->get_unloaded_klass(element_klass, array_name) | |
| 173 ->as_obj_array_klass(); | |
| 174 } | |
| 175 | |
| 176 // ------------------------------------------------------------------ | |
| 177 // ciObjArrayKlass::make | |
| 178 // | |
| 179 // Make an array klass corresponding to the specified primitive type. | |
| 180 ciObjArrayKlass* ciObjArrayKlass::make(ciKlass* element_klass) { | |
| 181 assert(element_klass->is_java_klass(), "wrong kind of klass"); | |
| 182 GUARDED_VM_ENTRY(return make_impl(element_klass);) | |
| 183 } |