Mercurial > hg > graal-compiler
annotate src/share/vm/oops/typeArrayKlass.cpp @ 12364:651cc32247d7
Add Graal option for deferring write barriers of eden allocated objects
author | Christos Kotselidis <christos.kotselidis@oracle.com> |
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date | Fri, 11 Oct 2013 17:06:18 +0200 |
parents | db9981fd3124 |
children | de6a9e811145 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 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" |
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26 #include "classfile/symbolTable.hpp" |
1972 | 27 #include "classfile/systemDictionary.hpp" |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "gc_interface/collectedHeap.hpp" | |
30 #include "gc_interface/collectedHeap.inline.hpp" | |
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31 #include "memory/metadataFactory.hpp" |
1972 | 32 #include "memory/resourceArea.hpp" |
33 #include "memory/universe.hpp" | |
34 #include "memory/universe.inline.hpp" | |
35 #include "oops/instanceKlass.hpp" | |
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36 #include "oops/klass.inline.hpp" |
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37 #include "oops/objArrayKlass.hpp" |
1972 | 38 #include "oops/oop.inline.hpp" |
39 #include "oops/typeArrayKlass.hpp" | |
40 #include "oops/typeArrayOop.hpp" | |
41 #include "runtime/handles.inline.hpp" | |
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42 #include "utilities/macros.hpp" |
0 | 43 |
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44 bool TypeArrayKlass::compute_is_subtype_of(Klass* k) { |
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45 if (!k->oop_is_typeArray()) { |
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46 return ArrayKlass::compute_is_subtype_of(k); |
0 | 47 } |
48 | |
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49 TypeArrayKlass* tak = TypeArrayKlass::cast(k); |
0 | 50 if (dimension() != tak->dimension()) return false; |
51 | |
52 return element_type() == tak->element_type(); | |
53 } | |
54 | |
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55 TypeArrayKlass* TypeArrayKlass::create_klass(BasicType type, |
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56 const char* name_str, TRAPS) { |
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57 Symbol* sym = NULL; |
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58 if (name_str != NULL) { |
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59 sym = SymbolTable::new_permanent_symbol(name_str, CHECK_NULL); |
0 | 60 } |
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61 |
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62 ClassLoaderData* null_loader_data = ClassLoaderData::the_null_class_loader_data(); |
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63 |
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64 TypeArrayKlass* ak = TypeArrayKlass::allocate(null_loader_data, type, sym, CHECK_NULL); |
0 | 65 |
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66 // Add all classes to our internal class loader list here, |
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67 // including classes in the bootstrap (NULL) class loader. |
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68 // GC walks these as strong roots. |
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69 null_loader_data->add_class(ak); |
0 | 70 |
71 // Call complete_create_array_klass after all instance variables have been initialized. | |
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72 complete_create_array_klass(ak, ak->super(), CHECK_NULL); |
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73 |
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74 return ak; |
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75 } |
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76 |
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77 TypeArrayKlass* TypeArrayKlass::allocate(ClassLoaderData* loader_data, BasicType type, Symbol* name, TRAPS) { |
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78 assert(TypeArrayKlass::header_size() <= InstanceKlass::header_size(), |
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79 "array klasses must be same size as InstanceKlass"); |
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80 |
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81 int size = ArrayKlass::static_size(TypeArrayKlass::header_size()); |
0 | 82 |
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83 return new (loader_data, size, THREAD) TypeArrayKlass(type, name); |
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84 } |
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85 |
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86 TypeArrayKlass::TypeArrayKlass(BasicType type, Symbol* name) : ArrayKlass(name) { |
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87 set_layout_helper(array_layout_helper(type)); |
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88 assert(oop_is_array(), "sanity"); |
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89 assert(oop_is_typeArray(), "sanity"); |
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90 |
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91 set_max_length(arrayOopDesc::max_array_length(type)); |
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92 assert(size() >= TypeArrayKlass::header_size(), "bad size"); |
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93 |
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94 set_class_loader_data(ClassLoaderData::the_null_class_loader_data()); |
0 | 95 } |
96 | |
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97 typeArrayOop TypeArrayKlass::allocate_common(int length, bool do_zero, TRAPS) { |
0 | 98 assert(log2_element_size() >= 0, "bad scale"); |
99 if (length >= 0) { | |
100 if (length <= max_length()) { | |
101 size_t size = typeArrayOopDesc::object_size(layout_helper(), length); | |
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102 KlassHandle h_k(THREAD, this); |
0 | 103 typeArrayOop t; |
104 CollectedHeap* ch = Universe::heap(); | |
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105 if (do_zero) { |
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106 t = (typeArrayOop)CollectedHeap::array_allocate(h_k, (int)size, length, CHECK_NULL); |
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107 } else { |
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108 t = (typeArrayOop)CollectedHeap::array_allocate_nozero(h_k, (int)size, length, CHECK_NULL); |
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109 } |
0 | 110 return t; |
111 } else { | |
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112 report_java_out_of_memory("Requested array size exceeds VM limit"); |
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113 JvmtiExport::post_array_size_exhausted(); |
0 | 114 THROW_OOP_0(Universe::out_of_memory_error_array_size()); |
115 } | |
116 } else { | |
117 THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); | |
118 } | |
119 } | |
120 | |
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121 oop TypeArrayKlass::multi_allocate(int rank, jint* last_size, TRAPS) { |
0 | 122 // For typeArrays this is only called for the last dimension |
123 assert(rank == 1, "just checking"); | |
124 int length = *last_size; | |
125 return allocate(length, THREAD); | |
126 } | |
127 | |
128 | |
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129 void TypeArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS) { |
0 | 130 assert(s->is_typeArray(), "must be type array"); |
131 | |
132 // Check destination | |
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133 if (!d->is_typeArray() || element_type() != TypeArrayKlass::cast(d->klass())->element_type()) { |
0 | 134 THROW(vmSymbols::java_lang_ArrayStoreException()); |
135 } | |
136 | |
137 // Check is all offsets and lengths are non negative | |
138 if (src_pos < 0 || dst_pos < 0 || length < 0) { | |
139 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); | |
140 } | |
141 // Check if the ranges are valid | |
142 if ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) | |
143 || (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) { | |
144 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); | |
145 } | |
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146 // Check zero copy |
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147 if (length == 0) |
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148 return; |
0 | 149 |
150 // This is an attempt to make the copy_array fast. | |
151 int l2es = log2_element_size(); | |
152 int ihs = array_header_in_bytes() / wordSize; | |
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153 char* src = (char*) ((oop*)s + ihs) + ((size_t)src_pos << l2es); |
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154 char* dst = (char*) ((oop*)d + ihs) + ((size_t)dst_pos << l2es); |
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155 Copy::conjoint_memory_atomic(src, dst, (size_t)length << l2es); |
0 | 156 } |
157 | |
158 | |
159 // create a klass of array holding typeArrays | |
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160 Klass* TypeArrayKlass::array_klass_impl(bool or_null, int n, TRAPS) { |
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161 int dim = dimension(); |
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162 assert(dim <= n, "check order of chain"); |
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163 if (dim == n) |
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164 return this; |
0 | 165 |
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166 if (higher_dimension() == NULL) { |
0 | 167 if (or_null) return NULL; |
168 | |
169 ResourceMark rm; | |
170 JavaThread *jt = (JavaThread *)THREAD; | |
171 { | |
172 MutexLocker mc(Compile_lock, THREAD); // for vtables | |
173 // Atomic create higher dimension and link into list | |
174 MutexLocker mu(MultiArray_lock, THREAD); | |
175 | |
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176 if (higher_dimension() == NULL) { |
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177 Klass* oak = ObjArrayKlass::allocate_objArray_klass( |
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178 class_loader_data(), dim + 1, this, CHECK_NULL); |
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179 ObjArrayKlass* h_ak = ObjArrayKlass::cast(oak); |
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180 h_ak->set_lower_dimension(this); |
2119 | 181 OrderAccess::storestore(); |
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182 set_higher_dimension(h_ak); |
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183 assert(h_ak->oop_is_objArray(), "incorrect initialization of ObjArrayKlass"); |
0 | 184 } |
185 } | |
186 } else { | |
187 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
188 } | |
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189 ObjArrayKlass* h_ak = ObjArrayKlass::cast(higher_dimension()); |
0 | 190 if (or_null) { |
191 return h_ak->array_klass_or_null(n); | |
192 } | |
193 return h_ak->array_klass(n, CHECK_NULL); | |
194 } | |
195 | |
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196 Klass* TypeArrayKlass::array_klass_impl(bool or_null, TRAPS) { |
0 | 197 return array_klass_impl(or_null, dimension() + 1, THREAD); |
198 } | |
199 | |
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200 int TypeArrayKlass::oop_size(oop obj) const { |
0 | 201 assert(obj->is_typeArray(),"must be a type array"); |
202 typeArrayOop t = typeArrayOop(obj); | |
203 return t->object_size(); | |
204 } | |
205 | |
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206 void TypeArrayKlass::oop_follow_contents(oop obj) { |
0 | 207 assert(obj->is_typeArray(),"must be a type array"); |
208 // Performance tweak: We skip iterating over the klass pointer since we | |
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209 // know that Universe::TypeArrayKlass never moves. |
0 | 210 } |
211 | |
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212 #if INCLUDE_ALL_GCS |
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213 void TypeArrayKlass::oop_follow_contents(ParCompactionManager* cm, oop obj) { |
0 | 214 assert(obj->is_typeArray(),"must be a type array"); |
215 // Performance tweak: We skip iterating over the klass pointer since we | |
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216 // know that Universe::TypeArrayKlass never moves. |
0 | 217 } |
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218 #endif // INCLUDE_ALL_GCS |
0 | 219 |
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220 int TypeArrayKlass::oop_adjust_pointers(oop obj) { |
0 | 221 assert(obj->is_typeArray(),"must be a type array"); |
222 typeArrayOop t = typeArrayOop(obj); | |
223 // Performance tweak: We skip iterating over the klass pointer since we | |
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224 // know that Universe::TypeArrayKlass never moves. |
0 | 225 return t->object_size(); |
226 } | |
227 | |
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228 int TypeArrayKlass::oop_oop_iterate(oop obj, ExtendedOopClosure* blk) { |
0 | 229 assert(obj->is_typeArray(),"must be a type array"); |
230 typeArrayOop t = typeArrayOop(obj); | |
231 // Performance tweak: We skip iterating over the klass pointer since we | |
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232 // know that Universe::TypeArrayKlass never moves. |
0 | 233 return t->object_size(); |
234 } | |
235 | |
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236 int TypeArrayKlass::oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) { |
0 | 237 assert(obj->is_typeArray(),"must be a type array"); |
238 typeArrayOop t = typeArrayOop(obj); | |
239 // Performance tweak: We skip iterating over the klass pointer since we | |
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240 // know that Universe::TypeArrayKlass never moves. |
0 | 241 return t->object_size(); |
242 } | |
243 | |
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244 #if INCLUDE_ALL_GCS |
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245 void TypeArrayKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { |
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246 ShouldNotReachHere(); |
0 | 247 assert(obj->is_typeArray(),"must be a type array"); |
248 } | |
249 | |
250 int | |
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251 TypeArrayKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { |
0 | 252 assert(obj->is_typeArray(),"must be a type array"); |
253 return typeArrayOop(obj)->object_size(); | |
254 } | |
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255 #endif // INCLUDE_ALL_GCS |
0 | 256 |
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257 void TypeArrayKlass::initialize(TRAPS) { |
0 | 258 // Nothing to do. Having this function is handy since objArrayKlasses can be |
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259 // initialized by calling initialize on their bottom_klass, see ObjArrayKlass::initialize |
0 | 260 } |
261 | |
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262 const char* TypeArrayKlass::external_name(BasicType type) { |
0 | 263 switch (type) { |
264 case T_BOOLEAN: return "[Z"; | |
265 case T_CHAR: return "[C"; | |
266 case T_FLOAT: return "[F"; | |
267 case T_DOUBLE: return "[D"; | |
268 case T_BYTE: return "[B"; | |
269 case T_SHORT: return "[S"; | |
270 case T_INT: return "[I"; | |
271 case T_LONG: return "[J"; | |
272 default: ShouldNotReachHere(); | |
273 } | |
274 return NULL; | |
275 } | |
276 | |
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277 |
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278 // Printing |
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279 |
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280 void TypeArrayKlass::print_on(outputStream* st) const { |
0 | 281 #ifndef PRODUCT |
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282 assert(is_klass(), "must be klass"); |
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283 print_value_on(st); |
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284 Klass::print_on(st); |
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285 #endif //PRODUCT |
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286 } |
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287 |
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288 void TypeArrayKlass::print_value_on(outputStream* st) const { |
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289 assert(is_klass(), "must be klass"); |
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290 st->print("{type array "); |
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291 switch (element_type()) { |
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292 case T_BOOLEAN: st->print("bool"); break; |
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293 case T_CHAR: st->print("char"); break; |
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294 case T_FLOAT: st->print("float"); break; |
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295 case T_DOUBLE: st->print("double"); break; |
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296 case T_BYTE: st->print("byte"); break; |
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297 case T_SHORT: st->print("short"); break; |
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298 case T_INT: st->print("int"); break; |
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299 case T_LONG: st->print("long"); break; |
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300 default: ShouldNotReachHere(); |
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301 } |
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302 st->print("}"); |
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303 } |
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304 |
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305 #ifndef PRODUCT |
0 | 306 |
307 static void print_boolean_array(typeArrayOop ta, int print_len, outputStream* st) { | |
308 for (int index = 0; index < print_len; index++) { | |
309 st->print_cr(" - %3d: %s", index, (ta->bool_at(index) == 0) ? "false" : "true"); | |
310 } | |
311 } | |
312 | |
313 | |
314 static void print_char_array(typeArrayOop ta, int print_len, outputStream* st) { | |
315 for (int index = 0; index < print_len; index++) { | |
316 jchar c = ta->char_at(index); | |
317 st->print_cr(" - %3d: %x %c", index, c, isprint(c) ? c : ' '); | |
318 } | |
319 } | |
320 | |
321 | |
322 static void print_float_array(typeArrayOop ta, int print_len, outputStream* st) { | |
323 for (int index = 0; index < print_len; index++) { | |
324 st->print_cr(" - %3d: %g", index, ta->float_at(index)); | |
325 } | |
326 } | |
327 | |
328 | |
329 static void print_double_array(typeArrayOop ta, int print_len, outputStream* st) { | |
330 for (int index = 0; index < print_len; index++) { | |
331 st->print_cr(" - %3d: %g", index, ta->double_at(index)); | |
332 } | |
333 } | |
334 | |
335 | |
336 static void print_byte_array(typeArrayOop ta, int print_len, outputStream* st) { | |
337 for (int index = 0; index < print_len; index++) { | |
338 jbyte c = ta->byte_at(index); | |
339 st->print_cr(" - %3d: %x %c", index, c, isprint(c) ? c : ' '); | |
340 } | |
341 } | |
342 | |
343 | |
344 static void print_short_array(typeArrayOop ta, int print_len, outputStream* st) { | |
345 for (int index = 0; index < print_len; index++) { | |
346 int v = ta->ushort_at(index); | |
347 st->print_cr(" - %3d: 0x%x\t %d", index, v, v); | |
348 } | |
349 } | |
350 | |
351 | |
352 static void print_int_array(typeArrayOop ta, int print_len, outputStream* st) { | |
353 for (int index = 0; index < print_len; index++) { | |
354 jint v = ta->int_at(index); | |
355 st->print_cr(" - %3d: 0x%x %d", index, v, v); | |
356 } | |
357 } | |
358 | |
359 | |
360 static void print_long_array(typeArrayOop ta, int print_len, outputStream* st) { | |
361 for (int index = 0; index < print_len; index++) { | |
362 jlong v = ta->long_at(index); | |
363 st->print_cr(" - %3d: 0x%x 0x%x", index, high(v), low(v)); | |
364 } | |
365 } | |
366 | |
367 | |
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368 void TypeArrayKlass::oop_print_on(oop obj, outputStream* st) { |
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369 ArrayKlass::oop_print_on(obj, st); |
0 | 370 typeArrayOop ta = typeArrayOop(obj); |
371 int print_len = MIN2((intx) ta->length(), MaxElementPrintSize); | |
372 switch (element_type()) { | |
373 case T_BOOLEAN: print_boolean_array(ta, print_len, st); break; | |
374 case T_CHAR: print_char_array(ta, print_len, st); break; | |
375 case T_FLOAT: print_float_array(ta, print_len, st); break; | |
376 case T_DOUBLE: print_double_array(ta, print_len, st); break; | |
377 case T_BYTE: print_byte_array(ta, print_len, st); break; | |
378 case T_SHORT: print_short_array(ta, print_len, st); break; | |
379 case T_INT: print_int_array(ta, print_len, st); break; | |
380 case T_LONG: print_long_array(ta, print_len, st); break; | |
381 default: ShouldNotReachHere(); | |
382 } | |
383 int remaining = ta->length() - print_len; | |
384 if (remaining > 0) { | |
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385 st->print_cr(" - <%d more elements, increase MaxElementPrintSize to print>", remaining); |
0 | 386 } |
387 } | |
388 | |
389 #endif // PRODUCT | |
390 | |
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391 const char* TypeArrayKlass::internal_name() const { |
0 | 392 return Klass::external_name(); |
393 } |