Mercurial > hg > graal-jvmci-8
annotate src/share/vm/classfile/classFileParser.cpp @ 24034:e828a0e2a4bc
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author | asaha |
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date | Wed, 20 Jul 2016 15:12:01 -0700 |
parents | 9d07e8518392 65029655928a |
children | fff265b31090 |
rev | line source |
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0 | 1 /* |
23614 | 2 * Copyright (c) 1997, 2016, 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/classFileParser.hpp" | |
27 #include "classfile/classLoader.hpp" | |
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28 #include "classfile/classLoaderData.hpp" |
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29 #include "classfile/classLoaderData.inline.hpp" |
6934 | 30 #include "classfile/defaultMethods.hpp" |
1972 | 31 #include "classfile/javaClasses.hpp" |
32 #include "classfile/symbolTable.hpp" | |
33 #include "classfile/systemDictionary.hpp" | |
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34 #if INCLUDE_CDS |
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35 #include "classfile/systemDictionaryShared.hpp" |
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36 #endif |
1972 | 37 #include "classfile/verificationType.hpp" |
38 #include "classfile/verifier.hpp" | |
39 #include "classfile/vmSymbols.hpp" | |
40 #include "memory/allocation.hpp" | |
41 #include "memory/gcLocker.hpp" | |
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42 #include "memory/metadataFactory.hpp" |
1972 | 43 #include "memory/oopFactory.hpp" |
10405 | 44 #include "memory/referenceType.hpp" |
1972 | 45 #include "memory/universe.inline.hpp" |
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46 #include "oops/constantPool.hpp" |
3938 | 47 #include "oops/fieldStreams.hpp" |
1972 | 48 #include "oops/instanceKlass.hpp" |
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49 #include "oops/instanceMirrorKlass.hpp" |
1972 | 50 #include "oops/klass.inline.hpp" |
51 #include "oops/klassVtable.hpp" | |
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52 #include "oops/method.hpp" |
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53 #include "oops/symbol.hpp" |
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54 #include "prims/jvm.h" |
1972 | 55 #include "prims/jvmtiExport.hpp" |
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56 #include "prims/jvmtiThreadState.hpp" |
1972 | 57 #include "runtime/javaCalls.hpp" |
58 #include "runtime/perfData.hpp" | |
59 #include "runtime/reflection.hpp" | |
60 #include "runtime/signature.hpp" | |
61 #include "runtime/timer.hpp" | |
62 #include "services/classLoadingService.hpp" | |
63 #include "services/threadService.hpp" | |
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64 #include "utilities/array.hpp" |
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65 #include "utilities/globalDefinitions.hpp" |
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66 #include "utilities/ostream.hpp" |
0 | 67 |
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68 // We generally try to create the oops directly when parsing, rather than |
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69 // allocating temporary data structures and copying the bytes twice. A |
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70 // temporary area is only needed when parsing utf8 entries in the constant |
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71 // pool and when parsing line number tables. |
0 | 72 |
73 // We add assert in debug mode when class format is not checked. | |
74 | |
75 #define JAVA_CLASSFILE_MAGIC 0xCAFEBABE | |
76 #define JAVA_MIN_SUPPORTED_VERSION 45 | |
6868 | 77 #define JAVA_MAX_SUPPORTED_VERSION 52 |
0 | 78 #define JAVA_MAX_SUPPORTED_MINOR_VERSION 0 |
79 | |
80 // Used for two backward compatibility reasons: | |
81 // - to check for new additions to the class file format in JDK1.5 | |
82 // - to check for bug fixes in the format checker in JDK1.5 | |
83 #define JAVA_1_5_VERSION 49 | |
84 | |
85 // Used for backward compatibility reasons: | |
86 // - to check for javac bug fixes that happened after 1.5 | |
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87 // - also used as the max version when running in jdk6 |
0 | 88 #define JAVA_6_VERSION 50 |
89 | |
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90 // Used for backward compatibility reasons: |
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91 // - to check NameAndType_info signatures more aggressively |
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92 #define JAVA_7_VERSION 51 |
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93 |
6934 | 94 // Extension method support. |
95 #define JAVA_8_VERSION 52 | |
96 | |
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97 void ClassFileParser::parse_constant_pool_entries(int length, TRAPS) { |
0 | 98 // Use a local copy of ClassFileStream. It helps the C++ compiler to optimize |
99 // this function (_current can be allocated in a register, with scalar | |
100 // replacement of aggregates). The _current pointer is copied back to | |
101 // stream() when this function returns. DON'T call another method within | |
102 // this method that uses stream(). | |
103 ClassFileStream* cfs0 = stream(); | |
104 ClassFileStream cfs1 = *cfs0; | |
105 ClassFileStream* cfs = &cfs1; | |
106 #ifdef ASSERT | |
1685 | 107 assert(cfs->allocated_on_stack(),"should be local"); |
0 | 108 u1* old_current = cfs0->current(); |
109 #endif | |
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110 Handle class_loader(THREAD, _loader_data->class_loader()); |
0 | 111 |
112 // Used for batching symbol allocations. | |
113 const char* names[SymbolTable::symbol_alloc_batch_size]; | |
114 int lengths[SymbolTable::symbol_alloc_batch_size]; | |
115 int indices[SymbolTable::symbol_alloc_batch_size]; | |
116 unsigned int hashValues[SymbolTable::symbol_alloc_batch_size]; | |
117 int names_count = 0; | |
118 | |
119 // parsing Index 0 is unused | |
120 for (int index = 1; index < length; index++) { | |
121 // Each of the following case guarantees one more byte in the stream | |
122 // for the following tag or the access_flags following constant pool, | |
123 // so we don't need bounds-check for reading tag. | |
124 u1 tag = cfs->get_u1_fast(); | |
125 switch (tag) { | |
126 case JVM_CONSTANT_Class : | |
127 { | |
128 cfs->guarantee_more(3, CHECK); // name_index, tag/access_flags | |
129 u2 name_index = cfs->get_u2_fast(); | |
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130 _cp->klass_index_at_put(index, name_index); |
0 | 131 } |
132 break; | |
133 case JVM_CONSTANT_Fieldref : | |
134 { | |
135 cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags | |
136 u2 class_index = cfs->get_u2_fast(); | |
137 u2 name_and_type_index = cfs->get_u2_fast(); | |
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138 _cp->field_at_put(index, class_index, name_and_type_index); |
0 | 139 } |
140 break; | |
141 case JVM_CONSTANT_Methodref : | |
142 { | |
143 cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags | |
144 u2 class_index = cfs->get_u2_fast(); | |
145 u2 name_and_type_index = cfs->get_u2_fast(); | |
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146 _cp->method_at_put(index, class_index, name_and_type_index); |
0 | 147 } |
148 break; | |
149 case JVM_CONSTANT_InterfaceMethodref : | |
150 { | |
151 cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags | |
152 u2 class_index = cfs->get_u2_fast(); | |
153 u2 name_and_type_index = cfs->get_u2_fast(); | |
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154 _cp->interface_method_at_put(index, class_index, name_and_type_index); |
0 | 155 } |
156 break; | |
157 case JVM_CONSTANT_String : | |
158 { | |
159 cfs->guarantee_more(3, CHECK); // string_index, tag/access_flags | |
160 u2 string_index = cfs->get_u2_fast(); | |
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161 _cp->string_index_at_put(index, string_index); |
0 | 162 } |
163 break; | |
1602 | 164 case JVM_CONSTANT_MethodHandle : |
165 case JVM_CONSTANT_MethodType : | |
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166 if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
1602 | 167 classfile_parse_error( |
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168 "Class file version does not support constant tag %u in class file %s", |
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169 tag, CHECK); |
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170 } |
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171 if (!EnableInvokeDynamic) { |
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172 classfile_parse_error( |
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173 "This JVM does not support constant tag %u in class file %s", |
1602 | 174 tag, CHECK); |
175 } | |
176 if (tag == JVM_CONSTANT_MethodHandle) { | |
177 cfs->guarantee_more(4, CHECK); // ref_kind, method_index, tag/access_flags | |
178 u1 ref_kind = cfs->get_u1_fast(); | |
179 u2 method_index = cfs->get_u2_fast(); | |
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180 _cp->method_handle_index_at_put(index, ref_kind, method_index); |
1602 | 181 } else if (tag == JVM_CONSTANT_MethodType) { |
182 cfs->guarantee_more(3, CHECK); // signature_index, tag/access_flags | |
183 u2 signature_index = cfs->get_u2_fast(); | |
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184 _cp->method_type_index_at_put(index, signature_index); |
1602 | 185 } else { |
186 ShouldNotReachHere(); | |
187 } | |
188 break; | |
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189 case JVM_CONSTANT_InvokeDynamic : |
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190 { |
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191 if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
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192 classfile_parse_error( |
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193 "Class file version does not support constant tag %u in class file %s", |
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194 tag, CHECK); |
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195 } |
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196 if (!EnableInvokeDynamic) { |
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197 classfile_parse_error( |
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198 "This JVM does not support constant tag %u in class file %s", |
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199 tag, CHECK); |
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200 } |
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201 cfs->guarantee_more(5, CHECK); // bsm_index, nt, tag/access_flags |
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202 u2 bootstrap_specifier_index = cfs->get_u2_fast(); |
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203 u2 name_and_type_index = cfs->get_u2_fast(); |
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204 if (_max_bootstrap_specifier_index < (int) bootstrap_specifier_index) |
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205 _max_bootstrap_specifier_index = (int) bootstrap_specifier_index; // collect for later |
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206 _cp->invoke_dynamic_at_put(index, bootstrap_specifier_index, name_and_type_index); |
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207 } |
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208 break; |
0 | 209 case JVM_CONSTANT_Integer : |
210 { | |
211 cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags | |
212 u4 bytes = cfs->get_u4_fast(); | |
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213 _cp->int_at_put(index, (jint) bytes); |
0 | 214 } |
215 break; | |
216 case JVM_CONSTANT_Float : | |
217 { | |
218 cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags | |
219 u4 bytes = cfs->get_u4_fast(); | |
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220 _cp->float_at_put(index, *(jfloat*)&bytes); |
0 | 221 } |
222 break; | |
223 case JVM_CONSTANT_Long : | |
224 // A mangled type might cause you to overrun allocated memory | |
225 guarantee_property(index+1 < length, | |
226 "Invalid constant pool entry %u in class file %s", | |
227 index, CHECK); | |
228 { | |
229 cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags | |
230 u8 bytes = cfs->get_u8_fast(); | |
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231 _cp->long_at_put(index, bytes); |
0 | 232 } |
233 index++; // Skip entry following eigth-byte constant, see JVM book p. 98 | |
234 break; | |
235 case JVM_CONSTANT_Double : | |
236 // A mangled type might cause you to overrun allocated memory | |
237 guarantee_property(index+1 < length, | |
238 "Invalid constant pool entry %u in class file %s", | |
239 index, CHECK); | |
240 { | |
241 cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags | |
242 u8 bytes = cfs->get_u8_fast(); | |
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243 _cp->double_at_put(index, *(jdouble*)&bytes); |
0 | 244 } |
245 index++; // Skip entry following eigth-byte constant, see JVM book p. 98 | |
246 break; | |
247 case JVM_CONSTANT_NameAndType : | |
248 { | |
249 cfs->guarantee_more(5, CHECK); // name_index, signature_index, tag/access_flags | |
250 u2 name_index = cfs->get_u2_fast(); | |
251 u2 signature_index = cfs->get_u2_fast(); | |
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252 _cp->name_and_type_at_put(index, name_index, signature_index); |
0 | 253 } |
254 break; | |
255 case JVM_CONSTANT_Utf8 : | |
256 { | |
257 cfs->guarantee_more(2, CHECK); // utf8_length | |
258 u2 utf8_length = cfs->get_u2_fast(); | |
259 u1* utf8_buffer = cfs->get_u1_buffer(); | |
260 assert(utf8_buffer != NULL, "null utf8 buffer"); | |
261 // Got utf8 string, guarantee utf8_length+1 bytes, set stream position forward. | |
262 cfs->guarantee_more(utf8_length+1, CHECK); // utf8 string, tag/access_flags | |
263 cfs->skip_u1_fast(utf8_length); | |
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264 |
0 | 265 // Before storing the symbol, make sure it's legal |
266 if (_need_verify) { | |
267 verify_legal_utf8((unsigned char*)utf8_buffer, utf8_length, CHECK); | |
268 } | |
269 | |
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270 if (EnableInvokeDynamic && has_cp_patch_at(index)) { |
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271 Handle patch = clear_cp_patch_at(index); |
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272 guarantee_property(java_lang_String::is_instance(patch()), |
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273 "Illegal utf8 patch at %d in class file %s", |
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274 index, CHECK); |
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275 char* str = java_lang_String::as_utf8_string(patch()); |
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276 // (could use java_lang_String::as_symbol instead, but might as well batch them) |
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277 utf8_buffer = (u1*) str; |
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278 utf8_length = (int) strlen(str); |
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279 } |
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280 |
0 | 281 unsigned int hash; |
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282 Symbol* result = SymbolTable::lookup_only((char*)utf8_buffer, utf8_length, hash); |
0 | 283 if (result == NULL) { |
284 names[names_count] = (char*)utf8_buffer; | |
285 lengths[names_count] = utf8_length; | |
286 indices[names_count] = index; | |
287 hashValues[names_count++] = hash; | |
288 if (names_count == SymbolTable::symbol_alloc_batch_size) { | |
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289 SymbolTable::new_symbols(_loader_data, _cp, names_count, names, lengths, indices, hashValues, CHECK); |
0 | 290 names_count = 0; |
291 } | |
292 } else { | |
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293 _cp->symbol_at_put(index, result); |
0 | 294 } |
295 } | |
296 break; | |
297 default: | |
298 classfile_parse_error( | |
299 "Unknown constant tag %u in class file %s", tag, CHECK); | |
300 break; | |
301 } | |
302 } | |
303 | |
304 // Allocate the remaining symbols | |
305 if (names_count > 0) { | |
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306 SymbolTable::new_symbols(_loader_data, _cp, names_count, names, lengths, indices, hashValues, CHECK); |
0 | 307 } |
308 | |
309 // Copy _current pointer of local copy back to stream(). | |
310 #ifdef ASSERT | |
311 assert(cfs0->current() == old_current, "non-exclusive use of stream()"); | |
312 #endif | |
313 cfs0->set_current(cfs1.current()); | |
314 } | |
315 | |
316 bool inline valid_cp_range(int index, int length) { return (index > 0 && index < length); } | |
317 | |
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318 inline Symbol* check_symbol_at(constantPoolHandle cp, int index) { |
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319 if (valid_cp_range(index, cp->length()) && cp->tag_at(index).is_utf8()) |
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320 return cp->symbol_at(index); |
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321 else |
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322 return NULL; |
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323 } |
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324 |
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325 constantPoolHandle ClassFileParser::parse_constant_pool(TRAPS) { |
0 | 326 ClassFileStream* cfs = stream(); |
327 constantPoolHandle nullHandle; | |
328 | |
329 cfs->guarantee_more(3, CHECK_(nullHandle)); // length, first cp tag | |
330 u2 length = cfs->get_u2_fast(); | |
331 guarantee_property( | |
332 length >= 1, "Illegal constant pool size %u in class file %s", | |
333 length, CHECK_(nullHandle)); | |
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334 ConstantPool* constant_pool = ConstantPool::allocate(_loader_data, length, |
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335 CHECK_(nullHandle)); |
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336 _cp = constant_pool; // save in case of errors |
0 | 337 constantPoolHandle cp (THREAD, constant_pool); |
338 | |
339 // parsing constant pool entries | |
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340 parse_constant_pool_entries(length, CHECK_(nullHandle)); |
0 | 341 |
342 int index = 1; // declared outside of loops for portability | |
343 | |
344 // first verification pass - validate cross references and fixup class and string constants | |
345 for (index = 1; index < length; index++) { // Index 0 is unused | |
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346 jbyte tag = cp->tag_at(index).value(); |
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347 switch (tag) { |
0 | 348 case JVM_CONSTANT_Class : |
349 ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present | |
350 break; | |
351 case JVM_CONSTANT_Fieldref : | |
352 // fall through | |
353 case JVM_CONSTANT_Methodref : | |
354 // fall through | |
355 case JVM_CONSTANT_InterfaceMethodref : { | |
356 if (!_need_verify) break; | |
357 int klass_ref_index = cp->klass_ref_index_at(index); | |
358 int name_and_type_ref_index = cp->name_and_type_ref_index_at(index); | |
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359 check_property(valid_klass_reference_at(klass_ref_index), |
0 | 360 "Invalid constant pool index %u in class file %s", |
361 klass_ref_index, | |
362 CHECK_(nullHandle)); | |
363 check_property(valid_cp_range(name_and_type_ref_index, length) && | |
364 cp->tag_at(name_and_type_ref_index).is_name_and_type(), | |
365 "Invalid constant pool index %u in class file %s", | |
366 name_and_type_ref_index, | |
367 CHECK_(nullHandle)); | |
368 break; | |
369 } | |
370 case JVM_CONSTANT_String : | |
371 ShouldNotReachHere(); // Only JVM_CONSTANT_StringIndex should be present | |
372 break; | |
373 case JVM_CONSTANT_Integer : | |
374 break; | |
375 case JVM_CONSTANT_Float : | |
376 break; | |
377 case JVM_CONSTANT_Long : | |
378 case JVM_CONSTANT_Double : | |
379 index++; | |
380 check_property( | |
381 (index < length && cp->tag_at(index).is_invalid()), | |
382 "Improper constant pool long/double index %u in class file %s", | |
383 index, CHECK_(nullHandle)); | |
384 break; | |
385 case JVM_CONSTANT_NameAndType : { | |
386 if (!_need_verify) break; | |
387 int name_ref_index = cp->name_ref_index_at(index); | |
388 int signature_ref_index = cp->signature_ref_index_at(index); | |
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389 check_property(valid_symbol_at(name_ref_index), |
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390 "Invalid constant pool index %u in class file %s", |
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391 name_ref_index, CHECK_(nullHandle)); |
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392 check_property(valid_symbol_at(signature_ref_index), |
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393 "Invalid constant pool index %u in class file %s", |
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394 signature_ref_index, CHECK_(nullHandle)); |
0 | 395 break; |
396 } | |
397 case JVM_CONSTANT_Utf8 : | |
398 break; | |
399 case JVM_CONSTANT_UnresolvedClass : // fall-through | |
400 case JVM_CONSTANT_UnresolvedClassInError: | |
401 ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present | |
402 break; | |
403 case JVM_CONSTANT_ClassIndex : | |
404 { | |
405 int class_index = cp->klass_index_at(index); | |
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406 check_property(valid_symbol_at(class_index), |
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407 "Invalid constant pool index %u in class file %s", |
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408 class_index, CHECK_(nullHandle)); |
0 | 409 cp->unresolved_klass_at_put(index, cp->symbol_at(class_index)); |
410 } | |
411 break; | |
412 case JVM_CONSTANT_StringIndex : | |
413 { | |
414 int string_index = cp->string_index_at(index); | |
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415 check_property(valid_symbol_at(string_index), |
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416 "Invalid constant pool index %u in class file %s", |
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417 string_index, CHECK_(nullHandle)); |
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418 Symbol* sym = cp->symbol_at(string_index); |
0 | 419 cp->unresolved_string_at_put(index, sym); |
420 } | |
421 break; | |
1602 | 422 case JVM_CONSTANT_MethodHandle : |
423 { | |
424 int ref_index = cp->method_handle_index_at(index); | |
425 check_property( | |
426 valid_cp_range(ref_index, length) && | |
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427 EnableInvokeDynamic, |
1602 | 428 "Invalid constant pool index %u in class file %s", |
429 ref_index, CHECK_(nullHandle)); | |
430 constantTag tag = cp->tag_at(ref_index); | |
431 int ref_kind = cp->method_handle_ref_kind_at(index); | |
432 switch (ref_kind) { | |
433 case JVM_REF_getField: | |
434 case JVM_REF_getStatic: | |
435 case JVM_REF_putField: | |
436 case JVM_REF_putStatic: | |
437 check_property( | |
438 tag.is_field(), | |
439 "Invalid constant pool index %u in class file %s (not a field)", | |
440 ref_index, CHECK_(nullHandle)); | |
441 break; | |
442 case JVM_REF_invokeVirtual: | |
443 case JVM_REF_newInvokeSpecial: | |
444 check_property( | |
445 tag.is_method(), | |
446 "Invalid constant pool index %u in class file %s (not a method)", | |
447 ref_index, CHECK_(nullHandle)); | |
448 break; | |
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449 case JVM_REF_invokeStatic: |
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450 case JVM_REF_invokeSpecial: |
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451 check_property(tag.is_method() || |
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452 ((_major_version >= JAVA_8_VERSION) && tag.is_interface_method()), |
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453 "Invalid constant pool index %u in class file %s (not a method)", |
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454 ref_index, CHECK_(nullHandle)); |
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455 break; |
1602 | 456 case JVM_REF_invokeInterface: |
457 check_property( | |
458 tag.is_interface_method(), | |
459 "Invalid constant pool index %u in class file %s (not an interface method)", | |
460 ref_index, CHECK_(nullHandle)); | |
461 break; | |
462 default: | |
463 classfile_parse_error( | |
464 "Bad method handle kind at constant pool index %u in class file %s", | |
465 index, CHECK_(nullHandle)); | |
466 } | |
467 // Keep the ref_index unchanged. It will be indirected at link-time. | |
468 } | |
469 break; | |
470 case JVM_CONSTANT_MethodType : | |
471 { | |
472 int ref_index = cp->method_type_index_at(index); | |
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473 check_property(valid_symbol_at(ref_index) && EnableInvokeDynamic, |
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474 "Invalid constant pool index %u in class file %s", |
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475 ref_index, CHECK_(nullHandle)); |
1602 | 476 } |
477 break; | |
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478 case JVM_CONSTANT_InvokeDynamic : |
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479 { |
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480 int name_and_type_ref_index = cp->invoke_dynamic_name_and_type_ref_index_at(index); |
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481 check_property(valid_cp_range(name_and_type_ref_index, length) && |
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482 cp->tag_at(name_and_type_ref_index).is_name_and_type(), |
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483 "Invalid constant pool index %u in class file %s", |
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484 name_and_type_ref_index, |
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485 CHECK_(nullHandle)); |
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486 // bootstrap specifier index must be checked later, when BootstrapMethods attr is available |
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487 break; |
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488 } |
0 | 489 default: |
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490 fatal(err_msg("bad constant pool tag value %u", |
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491 cp->tag_at(index).value())); |
0 | 492 ShouldNotReachHere(); |
493 break; | |
494 } // end of switch | |
495 } // end of for | |
496 | |
431
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497 if (_cp_patches != NULL) { |
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498 // need to treat this_class specially... |
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499 assert(EnableInvokeDynamic, ""); |
431
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500 int this_class_index; |
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501 { |
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502 cfs->guarantee_more(8, CHECK_(nullHandle)); // flags, this_class, super_class, infs_len |
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503 u1* mark = cfs->current(); |
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504 u2 flags = cfs->get_u2_fast(); |
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505 this_class_index = cfs->get_u2_fast(); |
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506 cfs->set_current(mark); // revert to mark |
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507 } |
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508 |
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509 for (index = 1; index < length; index++) { // Index 0 is unused |
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510 if (has_cp_patch_at(index)) { |
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511 guarantee_property(index != this_class_index, |
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512 "Illegal constant pool patch to self at %d in class file %s", |
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513 index, CHECK_(nullHandle)); |
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514 patch_constant_pool(cp, index, cp_patch_at(index), CHECK_(nullHandle)); |
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515 } |
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516 } |
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517 } |
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518 |
0 | 519 if (!_need_verify) { |
520 return cp; | |
521 } | |
522 | |
523 // second verification pass - checks the strings are of the right format. | |
431
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524 // but not yet to the other entries |
0 | 525 for (index = 1; index < length; index++) { |
526 jbyte tag = cp->tag_at(index).value(); | |
527 switch (tag) { | |
528 case JVM_CONSTANT_UnresolvedClass: { | |
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529 Symbol* class_name = cp->unresolved_klass_at(index); |
431
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530 // check the name, even if _cp_patches will overwrite it |
0 | 531 verify_legal_class_name(class_name, CHECK_(nullHandle)); |
532 break; | |
533 } | |
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534 case JVM_CONSTANT_NameAndType: { |
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535 if (_need_verify && _major_version >= JAVA_7_VERSION) { |
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536 int sig_index = cp->signature_ref_index_at(index); |
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537 int name_index = cp->name_ref_index_at(index); |
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538 Symbol* name = cp->symbol_at(name_index); |
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539 Symbol* sig = cp->symbol_at(sig_index); |
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540 guarantee_property(sig->utf8_length() != 0, |
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541 "Illegal zero length constant pool entry at %d in class %s", |
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542 sig_index, CHECK_(nullHandle)); |
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543 if (sig->byte_at(0) == JVM_SIGNATURE_FUNC) { |
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544 verify_legal_method_signature(name, sig, CHECK_(nullHandle)); |
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545 } else { |
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546 verify_legal_field_signature(name, sig, CHECK_(nullHandle)); |
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547 } |
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548 } |
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549 break; |
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550 } |
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551 case JVM_CONSTANT_InvokeDynamic: |
0 | 552 case JVM_CONSTANT_Fieldref: |
553 case JVM_CONSTANT_Methodref: | |
554 case JVM_CONSTANT_InterfaceMethodref: { | |
555 int name_and_type_ref_index = cp->name_and_type_ref_index_at(index); | |
556 // already verified to be utf8 | |
557 int name_ref_index = cp->name_ref_index_at(name_and_type_ref_index); | |
558 // already verified to be utf8 | |
559 int signature_ref_index = cp->signature_ref_index_at(name_and_type_ref_index); | |
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560 Symbol* name = cp->symbol_at(name_ref_index); |
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561 Symbol* signature = cp->symbol_at(signature_ref_index); |
0 | 562 if (tag == JVM_CONSTANT_Fieldref) { |
563 verify_legal_field_name(name, CHECK_(nullHandle)); | |
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564 if (_need_verify && _major_version >= JAVA_7_VERSION) { |
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565 // Signature is verified above, when iterating NameAndType_info. |
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566 // Need only to be sure it's non-zero length and the right type. |
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567 if (signature->utf8_length() == 0 || |
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568 signature->byte_at(0) == JVM_SIGNATURE_FUNC) { |
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569 throwIllegalSignature( |
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570 "Field", name, signature, CHECK_(nullHandle)); |
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571 } |
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572 } else { |
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573 verify_legal_field_signature(name, signature, CHECK_(nullHandle)); |
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574 } |
0 | 575 } else { |
576 verify_legal_method_name(name, CHECK_(nullHandle)); | |
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577 if (_need_verify && _major_version >= JAVA_7_VERSION) { |
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578 // Signature is verified above, when iterating NameAndType_info. |
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579 // Need only to be sure it's non-zero length and the right type. |
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580 if (signature->utf8_length() == 0 || |
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581 signature->byte_at(0) != JVM_SIGNATURE_FUNC) { |
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582 throwIllegalSignature( |
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583 "Method", name, signature, CHECK_(nullHandle)); |
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584 } |
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585 } else { |
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586 verify_legal_method_signature(name, signature, CHECK_(nullHandle)); |
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587 } |
0 | 588 if (tag == JVM_CONSTANT_Methodref) { |
589 // 4509014: If a class method name begins with '<', it must be "<init>". | |
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590 assert(name != NULL, "method name in constant pool is null"); |
0 | 591 unsigned int name_len = name->utf8_length(); |
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592 if (name_len != 0 && name->byte_at(0) == '<') { |
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593 if (name != vmSymbols::object_initializer_name()) { |
0 | 594 classfile_parse_error( |
595 "Bad method name at constant pool index %u in class file %s", | |
596 name_ref_index, CHECK_(nullHandle)); | |
597 } | |
598 } | |
599 } | |
600 } | |
601 break; | |
602 } | |
1602 | 603 case JVM_CONSTANT_MethodHandle: { |
604 int ref_index = cp->method_handle_index_at(index); | |
605 int ref_kind = cp->method_handle_ref_kind_at(index); | |
606 switch (ref_kind) { | |
607 case JVM_REF_invokeVirtual: | |
608 case JVM_REF_invokeStatic: | |
609 case JVM_REF_invokeSpecial: | |
610 case JVM_REF_newInvokeSpecial: | |
611 { | |
612 int name_and_type_ref_index = cp->name_and_type_ref_index_at(ref_index); | |
613 int name_ref_index = cp->name_ref_index_at(name_and_type_ref_index); | |
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614 Symbol* name = cp->symbol_at(name_ref_index); |
1602 | 615 if (ref_kind == JVM_REF_newInvokeSpecial) { |
2177
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616 if (name != vmSymbols::object_initializer_name()) { |
1602 | 617 classfile_parse_error( |
618 "Bad constructor name at constant pool index %u in class file %s", | |
619 name_ref_index, CHECK_(nullHandle)); | |
620 } | |
621 } else { | |
2177
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622 if (name == vmSymbols::object_initializer_name()) { |
1602 | 623 classfile_parse_error( |
624 "Bad method name at constant pool index %u in class file %s", | |
625 name_ref_index, CHECK_(nullHandle)); | |
626 } | |
627 } | |
628 } | |
629 break; | |
630 // Other ref_kinds are already fully checked in previous pass. | |
631 } | |
632 break; | |
633 } | |
634 case JVM_CONSTANT_MethodType: { | |
2177
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635 Symbol* no_name = vmSymbols::type_name(); // place holder |
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636 Symbol* signature = cp->method_type_signature_at(index); |
1602 | 637 verify_legal_method_signature(no_name, signature, CHECK_(nullHandle)); |
638 break; | |
639 } | |
2177
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640 case JVM_CONSTANT_Utf8: { |
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641 assert(cp->symbol_at(index)->refcount() != 0, "count corrupted"); |
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642 } |
0 | 643 } // end of switch |
644 } // end of for | |
645 | |
646 return cp; | |
647 } | |
648 | |
649 | |
431
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650 void ClassFileParser::patch_constant_pool(constantPoolHandle cp, int index, Handle patch, TRAPS) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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651 assert(EnableInvokeDynamic, ""); |
431
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652 BasicType patch_type = T_VOID; |
6725
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653 |
431
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654 switch (cp->tag_at(index).value()) { |
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655 |
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656 case JVM_CONSTANT_UnresolvedClass : |
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657 // Patching a class means pre-resolving it. |
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658 // The name in the constant pool is ignored. |
1602 | 659 if (java_lang_Class::is_instance(patch())) { |
431
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660 guarantee_property(!java_lang_Class::is_primitive(patch()), |
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661 "Illegal class patch at %d in class file %s", |
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662 index, CHECK); |
6725
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663 cp->klass_at_put(index, java_lang_Class::as_Klass(patch())); |
431
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664 } else { |
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665 guarantee_property(java_lang_String::is_instance(patch()), |
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666 "Illegal class patch at %d in class file %s", |
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667 index, CHECK); |
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668 Symbol* name = java_lang_String::as_symbol(patch(), CHECK); |
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669 cp->unresolved_klass_at_put(index, name); |
431
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670 } |
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671 break; |
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672 |
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673 case JVM_CONSTANT_String : |
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674 // skip this patch and don't clear it. Needs the oop array for resolved |
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675 // references to be created first. |
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676 return; |
431
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677 |
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678 case JVM_CONSTANT_Integer : patch_type = T_INT; goto patch_prim; |
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679 case JVM_CONSTANT_Float : patch_type = T_FLOAT; goto patch_prim; |
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680 case JVM_CONSTANT_Long : patch_type = T_LONG; goto patch_prim; |
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681 case JVM_CONSTANT_Double : patch_type = T_DOUBLE; goto patch_prim; |
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682 patch_prim: |
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683 { |
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684 jvalue value; |
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685 BasicType value_type = java_lang_boxing_object::get_value(patch(), &value); |
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686 guarantee_property(value_type == patch_type, |
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687 "Illegal primitive patch at %d in class file %s", |
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688 index, CHECK); |
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689 switch (value_type) { |
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690 case T_INT: cp->int_at_put(index, value.i); break; |
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691 case T_FLOAT: cp->float_at_put(index, value.f); break; |
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692 case T_LONG: cp->long_at_put(index, value.j); break; |
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693 case T_DOUBLE: cp->double_at_put(index, value.d); break; |
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694 default: assert(false, ""); |
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695 } |
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696 } |
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697 break; |
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698 |
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699 default: |
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700 // %%% TODO: put method handles into CONSTANT_InterfaceMethodref, etc. |
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701 guarantee_property(!has_cp_patch_at(index), |
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702 "Illegal unexpected patch at %d in class file %s", |
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703 index, CHECK); |
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704 return; |
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705 } |
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706 |
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707 // On fall-through, mark the patch as used. |
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708 clear_cp_patch_at(index); |
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709 } |
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710 |
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711 |
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712 |
0 | 713 class NameSigHash: public ResourceObj { |
714 public: | |
2177
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715 Symbol* _name; // name |
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716 Symbol* _sig; // signature |
0 | 717 NameSigHash* _next; // Next entry in hash table |
718 }; | |
719 | |
720 | |
721 #define HASH_ROW_SIZE 256 | |
722 | |
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723 unsigned int hash(Symbol* name, Symbol* sig) { |
0 | 724 unsigned int raw_hash = 0; |
725 raw_hash += ((unsigned int)(uintptr_t)name) >> (LogHeapWordSize + 2); | |
726 raw_hash += ((unsigned int)(uintptr_t)sig) >> LogHeapWordSize; | |
727 | |
728 return (raw_hash + (unsigned int)(uintptr_t)name) % HASH_ROW_SIZE; | |
729 } | |
730 | |
731 | |
732 void initialize_hashtable(NameSigHash** table) { | |
733 memset((void*)table, 0, sizeof(NameSigHash*) * HASH_ROW_SIZE); | |
734 } | |
735 | |
736 // Return false if the name/sig combination is found in table. | |
737 // Return true if no duplicate is found. And name/sig is added as a new entry in table. | |
738 // The old format checker uses heap sort to find duplicates. | |
739 // NOTE: caller should guarantee that GC doesn't happen during the life cycle | |
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740 // of table since we don't expect Symbol*'s to move. |
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741 bool put_after_lookup(Symbol* name, Symbol* sig, NameSigHash** table) { |
0 | 742 assert(name != NULL, "name in constant pool is NULL"); |
743 | |
744 // First lookup for duplicates | |
745 int index = hash(name, sig); | |
746 NameSigHash* entry = table[index]; | |
747 while (entry != NULL) { | |
748 if (entry->_name == name && entry->_sig == sig) { | |
749 return false; | |
750 } | |
751 entry = entry->_next; | |
752 } | |
753 | |
754 // No duplicate is found, allocate a new entry and fill it. | |
755 entry = new NameSigHash(); | |
756 entry->_name = name; | |
757 entry->_sig = sig; | |
758 | |
759 // Insert into hash table | |
760 entry->_next = table[index]; | |
761 table[index] = entry; | |
762 | |
763 return true; | |
764 } | |
765 | |
766 | |
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767 Array<Klass*>* ClassFileParser::parse_interfaces(int length, |
0 | 768 Handle protection_domain, |
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769 Symbol* class_name, |
6934 | 770 bool* has_default_methods, |
0 | 771 TRAPS) { |
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772 if (length == 0) { |
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773 _local_interfaces = Universe::the_empty_klass_array(); |
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774 } else { |
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775 ClassFileStream* cfs = stream(); |
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776 assert(length > 0, "only called for length>0"); |
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777 _local_interfaces = MetadataFactory::new_array<Klass*>(_loader_data, length, NULL, CHECK_NULL); |
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778 |
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779 int index; |
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780 for (index = 0; index < length; index++) { |
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781 u2 interface_index = cfs->get_u2(CHECK_NULL); |
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782 KlassHandle interf; |
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783 check_property( |
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784 valid_klass_reference_at(interface_index), |
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785 "Interface name has bad constant pool index %u in class file %s", |
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786 interface_index, CHECK_NULL); |
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787 if (_cp->tag_at(interface_index).is_klass()) { |
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788 interf = KlassHandle(THREAD, _cp->resolved_klass_at(interface_index)); |
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789 } else { |
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790 Symbol* unresolved_klass = _cp->klass_name_at(interface_index); |
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791 |
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792 // Don't need to check legal name because it's checked when parsing constant pool. |
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793 // But need to make sure it's not an array type. |
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794 guarantee_property(unresolved_klass->byte_at(0) != JVM_SIGNATURE_ARRAY, |
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795 "Bad interface name in class file %s", CHECK_NULL); |
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796 Handle class_loader(THREAD, _loader_data->class_loader()); |
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797 |
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798 // Call resolve_super so classcircularity is checked |
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799 Klass* k = SystemDictionary::resolve_super_or_fail(class_name, |
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800 unresolved_klass, class_loader, protection_domain, |
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801 false, CHECK_NULL); |
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802 interf = KlassHandle(THREAD, k); |
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803 } |
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804 |
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805 if (!interf()->is_interface()) { |
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806 THROW_MSG_(vmSymbols::java_lang_IncompatibleClassChangeError(), "Implementing class", NULL); |
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807 } |
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808 if (InstanceKlass::cast(interf())->has_default_methods()) { |
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809 *has_default_methods = true; |
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810 } |
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811 _local_interfaces->at_put(index, interf()); |
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812 } |
0 | 813 |
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814 if (!_need_verify || length <= 1) { |
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815 return _local_interfaces; |
6934 | 816 } |
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817 |
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818 // Check if there's any duplicates in interfaces |
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819 ResourceMark rm(THREAD); |
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820 NameSigHash** interface_names = NEW_RESOURCE_ARRAY_IN_THREAD( |
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821 THREAD, NameSigHash*, HASH_ROW_SIZE); |
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822 initialize_hashtable(interface_names); |
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823 bool dup = false; |
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824 { |
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825 debug_only(No_Safepoint_Verifier nsv;) |
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826 for (index = 0; index < length; index++) { |
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827 Klass* k = _local_interfaces->at(index); |
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828 Symbol* name = InstanceKlass::cast(k)->name(); |
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829 // If no duplicates, add (name, NULL) in hashtable interface_names. |
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830 if (!put_after_lookup(name, NULL, interface_names)) { |
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831 dup = true; |
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832 break; |
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833 } |
0 | 834 } |
835 } | |
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836 if (dup) { |
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837 classfile_parse_error("Duplicate interface name in class file %s", CHECK_NULL); |
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838 } |
0 | 839 } |
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840 return _local_interfaces; |
0 | 841 } |
842 | |
843 | |
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844 void ClassFileParser::verify_constantvalue(int constantvalue_index, int signature_index, TRAPS) { |
0 | 845 // Make sure the constant pool entry is of a type appropriate to this field |
846 guarantee_property( | |
847 (constantvalue_index > 0 && | |
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848 constantvalue_index < _cp->length()), |
0 | 849 "Bad initial value index %u in ConstantValue attribute in class file %s", |
850 constantvalue_index, CHECK); | |
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851 constantTag value_type = _cp->tag_at(constantvalue_index); |
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852 switch ( _cp->basic_type_for_signature_at(signature_index) ) { |
0 | 853 case T_LONG: |
854 guarantee_property(value_type.is_long(), "Inconsistent constant value type in class file %s", CHECK); | |
855 break; | |
856 case T_FLOAT: | |
857 guarantee_property(value_type.is_float(), "Inconsistent constant value type in class file %s", CHECK); | |
858 break; | |
859 case T_DOUBLE: | |
860 guarantee_property(value_type.is_double(), "Inconsistent constant value type in class file %s", CHECK); | |
861 break; | |
862 case T_BYTE: case T_CHAR: case T_SHORT: case T_BOOLEAN: case T_INT: | |
863 guarantee_property(value_type.is_int(), "Inconsistent constant value type in class file %s", CHECK); | |
864 break; | |
865 case T_OBJECT: | |
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866 guarantee_property((_cp->symbol_at(signature_index)->equals("Ljava/lang/String;") |
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867 && value_type.is_string()), |
0 | 868 "Bad string initial value in class file %s", CHECK); |
869 break; | |
870 default: | |
871 classfile_parse_error( | |
872 "Unable to set initial value %u in class file %s", | |
873 constantvalue_index, CHECK); | |
874 } | |
875 } | |
876 | |
877 | |
878 // Parse attributes for a field. | |
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879 void ClassFileParser::parse_field_attributes(u2 attributes_count, |
0 | 880 bool is_static, u2 signature_index, |
881 u2* constantvalue_index_addr, | |
882 bool* is_synthetic_addr, | |
883 u2* generic_signature_index_addr, | |
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884 ClassFileParser::FieldAnnotationCollector* parsed_annotations, |
0 | 885 TRAPS) { |
886 ClassFileStream* cfs = stream(); | |
887 assert(attributes_count > 0, "length should be greater than 0"); | |
888 u2 constantvalue_index = 0; | |
889 u2 generic_signature_index = 0; | |
890 bool is_synthetic = false; | |
891 u1* runtime_visible_annotations = NULL; | |
892 int runtime_visible_annotations_length = 0; | |
893 u1* runtime_invisible_annotations = NULL; | |
894 int runtime_invisible_annotations_length = 0; | |
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895 u1* runtime_visible_type_annotations = NULL; |
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896 int runtime_visible_type_annotations_length = 0; |
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897 u1* runtime_invisible_type_annotations = NULL; |
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898 int runtime_invisible_type_annotations_length = 0; |
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899 bool runtime_invisible_type_annotations_exists = false; |
0 | 900 while (attributes_count--) { |
901 cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length | |
902 u2 attribute_name_index = cfs->get_u2_fast(); | |
903 u4 attribute_length = cfs->get_u4_fast(); | |
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904 check_property(valid_symbol_at(attribute_name_index), |
0 | 905 "Invalid field attribute index %u in class file %s", |
906 attribute_name_index, | |
907 CHECK); | |
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908 Symbol* attribute_name = _cp->symbol_at(attribute_name_index); |
0 | 909 if (is_static && attribute_name == vmSymbols::tag_constant_value()) { |
910 // ignore if non-static | |
911 if (constantvalue_index != 0) { | |
912 classfile_parse_error("Duplicate ConstantValue attribute in class file %s", CHECK); | |
913 } | |
914 check_property( | |
915 attribute_length == 2, | |
916 "Invalid ConstantValue field attribute length %u in class file %s", | |
917 attribute_length, CHECK); | |
918 constantvalue_index = cfs->get_u2(CHECK); | |
919 if (_need_verify) { | |
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920 verify_constantvalue(constantvalue_index, signature_index, CHECK); |
0 | 921 } |
922 } else if (attribute_name == vmSymbols::tag_synthetic()) { | |
923 if (attribute_length != 0) { | |
924 classfile_parse_error( | |
925 "Invalid Synthetic field attribute length %u in class file %s", | |
926 attribute_length, CHECK); | |
927 } | |
928 is_synthetic = true; | |
929 } else if (attribute_name == vmSymbols::tag_deprecated()) { // 4276120 | |
930 if (attribute_length != 0) { | |
931 classfile_parse_error( | |
932 "Invalid Deprecated field attribute length %u in class file %s", | |
933 attribute_length, CHECK); | |
934 } | |
935 } else if (_major_version >= JAVA_1_5_VERSION) { | |
936 if (attribute_name == vmSymbols::tag_signature()) { | |
937 if (attribute_length != 2) { | |
938 classfile_parse_error( | |
939 "Wrong size %u for field's Signature attribute in class file %s", | |
940 attribute_length, CHECK); | |
941 } | |
17577 | 942 generic_signature_index = parse_generic_signature_attribute(CHECK); |
0 | 943 } else if (attribute_name == vmSymbols::tag_runtime_visible_annotations()) { |
944 runtime_visible_annotations_length = attribute_length; | |
945 runtime_visible_annotations = cfs->get_u1_buffer(); | |
946 assert(runtime_visible_annotations != NULL, "null visible annotations"); | |
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947 parse_annotations(runtime_visible_annotations, |
7587 | 948 runtime_visible_annotations_length, |
949 parsed_annotations, | |
950 CHECK); | |
0 | 951 cfs->skip_u1(runtime_visible_annotations_length, CHECK); |
952 } else if (PreserveAllAnnotations && attribute_name == vmSymbols::tag_runtime_invisible_annotations()) { | |
953 runtime_invisible_annotations_length = attribute_length; | |
954 runtime_invisible_annotations = cfs->get_u1_buffer(); | |
955 assert(runtime_invisible_annotations != NULL, "null invisible annotations"); | |
956 cfs->skip_u1(runtime_invisible_annotations_length, CHECK); | |
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957 } else if (attribute_name == vmSymbols::tag_runtime_visible_type_annotations()) { |
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958 if (runtime_visible_type_annotations != NULL) { |
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959 classfile_parse_error( |
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960 "Multiple RuntimeVisibleTypeAnnotations attributes for field in class file %s", CHECK); |
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961 } |
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962 runtime_visible_type_annotations_length = attribute_length; |
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963 runtime_visible_type_annotations = cfs->get_u1_buffer(); |
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964 assert(runtime_visible_type_annotations != NULL, "null visible type annotations"); |
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965 cfs->skip_u1(runtime_visible_type_annotations_length, CHECK); |
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966 } else if (attribute_name == vmSymbols::tag_runtime_invisible_type_annotations()) { |
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967 if (runtime_invisible_type_annotations_exists) { |
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968 classfile_parse_error( |
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969 "Multiple RuntimeInvisibleTypeAnnotations attributes for field in class file %s", CHECK); |
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970 } else { |
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971 runtime_invisible_type_annotations_exists = true; |
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972 } |
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973 if (PreserveAllAnnotations) { |
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974 runtime_invisible_type_annotations_length = attribute_length; |
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975 runtime_invisible_type_annotations = cfs->get_u1_buffer(); |
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976 assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations"); |
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977 } |
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978 cfs->skip_u1(attribute_length, CHECK); |
0 | 979 } else { |
980 cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes | |
981 } | |
982 } else { | |
983 cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes | |
984 } | |
985 } | |
986 | |
987 *constantvalue_index_addr = constantvalue_index; | |
988 *is_synthetic_addr = is_synthetic; | |
989 *generic_signature_index_addr = generic_signature_index; | |
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990 AnnotationArray* a = assemble_annotations(runtime_visible_annotations, |
0 | 991 runtime_visible_annotations_length, |
992 runtime_invisible_annotations, | |
993 runtime_invisible_annotations_length, | |
994 CHECK); | |
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995 parsed_annotations->set_field_annotations(a); |
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996 a = assemble_annotations(runtime_visible_type_annotations, |
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997 runtime_visible_type_annotations_length, |
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998 runtime_invisible_type_annotations, |
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999 runtime_invisible_type_annotations_length, |
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1000 CHECK); |
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1001 parsed_annotations->set_field_type_annotations(a); |
0 | 1002 return; |
1003 } | |
1004 | |
1005 | |
1006 // Field allocation types. Used for computing field offsets. | |
1007 | |
1008 enum FieldAllocationType { | |
1009 STATIC_OOP, // Oops | |
1010 STATIC_BYTE, // Boolean, Byte, char | |
1011 STATIC_SHORT, // shorts | |
1012 STATIC_WORD, // ints | |
3938 | 1013 STATIC_DOUBLE, // aligned long or double |
0 | 1014 NONSTATIC_OOP, |
1015 NONSTATIC_BYTE, | |
1016 NONSTATIC_SHORT, | |
1017 NONSTATIC_WORD, | |
1018 NONSTATIC_DOUBLE, | |
3938 | 1019 MAX_FIELD_ALLOCATION_TYPE, |
1020 BAD_ALLOCATION_TYPE = -1 | |
0 | 1021 }; |
1022 | |
3938 | 1023 static FieldAllocationType _basic_type_to_atype[2 * (T_CONFLICT + 1)] = { |
1024 BAD_ALLOCATION_TYPE, // 0 | |
1025 BAD_ALLOCATION_TYPE, // 1 | |
1026 BAD_ALLOCATION_TYPE, // 2 | |
1027 BAD_ALLOCATION_TYPE, // 3 | |
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1028 NONSTATIC_BYTE , // T_BOOLEAN = 4, |
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1029 NONSTATIC_SHORT, // T_CHAR = 5, |
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1030 NONSTATIC_WORD, // T_FLOAT = 6, |
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1031 NONSTATIC_DOUBLE, // T_DOUBLE = 7, |
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1032 NONSTATIC_BYTE, // T_BYTE = 8, |
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1033 NONSTATIC_SHORT, // T_SHORT = 9, |
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1034 NONSTATIC_WORD, // T_INT = 10, |
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1035 NONSTATIC_DOUBLE, // T_LONG = 11, |
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1036 NONSTATIC_OOP, // T_OBJECT = 12, |
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1037 NONSTATIC_OOP, // T_ARRAY = 13, |
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1038 BAD_ALLOCATION_TYPE, // T_VOID = 14, |
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1039 BAD_ALLOCATION_TYPE, // T_ADDRESS = 15, |
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1040 BAD_ALLOCATION_TYPE, // T_NARROWOOP = 16, |
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1041 BAD_ALLOCATION_TYPE, // T_METADATA = 17, |
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1042 BAD_ALLOCATION_TYPE, // T_NARROWKLASS = 18, |
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1043 BAD_ALLOCATION_TYPE, // T_CONFLICT = 19, |
3938 | 1044 BAD_ALLOCATION_TYPE, // 0 |
1045 BAD_ALLOCATION_TYPE, // 1 | |
1046 BAD_ALLOCATION_TYPE, // 2 | |
1047 BAD_ALLOCATION_TYPE, // 3 | |
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1048 STATIC_BYTE , // T_BOOLEAN = 4, |
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1049 STATIC_SHORT, // T_CHAR = 5, |
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1050 STATIC_WORD, // T_FLOAT = 6, |
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1051 STATIC_DOUBLE, // T_DOUBLE = 7, |
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1052 STATIC_BYTE, // T_BYTE = 8, |
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1053 STATIC_SHORT, // T_SHORT = 9, |
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1054 STATIC_WORD, // T_INT = 10, |
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1055 STATIC_DOUBLE, // T_LONG = 11, |
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1056 STATIC_OOP, // T_OBJECT = 12, |
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1057 STATIC_OOP, // T_ARRAY = 13, |
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1058 BAD_ALLOCATION_TYPE, // T_VOID = 14, |
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1059 BAD_ALLOCATION_TYPE, // T_ADDRESS = 15, |
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1060 BAD_ALLOCATION_TYPE, // T_NARROWOOP = 16, |
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1061 BAD_ALLOCATION_TYPE, // T_METADATA = 17, |
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1062 BAD_ALLOCATION_TYPE, // T_NARROWKLASS = 18, |
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1063 BAD_ALLOCATION_TYPE, // T_CONFLICT = 19, |
0 | 1064 }; |
1065 | |
3938 | 1066 static FieldAllocationType basic_type_to_atype(bool is_static, BasicType type) { |
1067 assert(type >= T_BOOLEAN && type < T_VOID, "only allowable values"); | |
1068 FieldAllocationType result = _basic_type_to_atype[type + (is_static ? (T_CONFLICT + 1) : 0)]; | |
1069 assert(result != BAD_ALLOCATION_TYPE, "bad type"); | |
1070 return result; | |
1071 } | |
1072 | |
1073 class FieldAllocationCount: public ResourceObj { | |
1074 public: | |
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1075 u2 count[MAX_FIELD_ALLOCATION_TYPE]; |
3938 | 1076 |
1077 FieldAllocationCount() { | |
1078 for (int i = 0; i < MAX_FIELD_ALLOCATION_TYPE; i++) { | |
1079 count[i] = 0; | |
1080 } | |
1081 } | |
1082 | |
1083 FieldAllocationType update(bool is_static, BasicType type) { | |
1084 FieldAllocationType atype = basic_type_to_atype(is_static, type); | |
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1085 // Make sure there is no overflow with injected fields. |
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1086 assert(count[atype] < 0xFFFF, "More than 65535 fields"); |
3938 | 1087 count[atype]++; |
1088 return atype; | |
1089 } | |
1090 }; | |
1091 | |
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1092 Array<u2>* ClassFileParser::parse_fields(Symbol* class_name, |
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1093 bool is_interface, |
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1094 FieldAllocationCount *fac, |
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1095 u2* java_fields_count_ptr, TRAPS) { |
0 | 1096 ClassFileStream* cfs = stream(); |
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1097 cfs->guarantee_more(2, CHECK_NULL); // length |
0 | 1098 u2 length = cfs->get_u2_fast(); |
3938 | 1099 *java_fields_count_ptr = length; |
1100 | |
1101 int num_injected = 0; | |
1102 InjectedField* injected = JavaClasses::get_injected(class_name, &num_injected); | |
6100
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1103 int total_fields = length + num_injected; |
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1104 |
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1105 // The field array starts with tuples of shorts |
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1106 // [access, name index, sig index, initial value index, byte offset]. |
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1107 // A generic signature slot only exists for field with generic |
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1108 // signature attribute. And the access flag is set with |
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1109 // JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE for that field. The generic |
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1110 // signature slots are at the end of the field array and after all |
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1111 // other fields data. |
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1112 // |
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1113 // f1: [access, name index, sig index, initial value index, low_offset, high_offset] |
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1114 // f2: [access, name index, sig index, initial value index, low_offset, high_offset] |
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1115 // ... |
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1116 // fn: [access, name index, sig index, initial value index, low_offset, high_offset] |
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1117 // [generic signature index] |
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1118 // [generic signature index] |
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1119 // ... |
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1120 // |
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1121 // Allocate a temporary resource array for field data. For each field, |
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1122 // a slot is reserved in the temporary array for the generic signature |
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1123 // index. After parsing all fields, the data are copied to a permanent |
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1124 // array and any unused slots will be discarded. |
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1125 ResourceMark rm(THREAD); |
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1126 u2* fa = NEW_RESOURCE_ARRAY_IN_THREAD( |
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1127 THREAD, u2, total_fields * (FieldInfo::field_slots + 1)); |
0 | 1128 |
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1129 // The generic signature slots start after all other fields' data. |
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1130 int generic_signature_slot = total_fields * FieldInfo::field_slots; |
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1131 int num_generic_signature = 0; |
0 | 1132 for (int n = 0; n < length; n++) { |
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1133 cfs->guarantee_more(8, CHECK_NULL); // access_flags, name_index, descriptor_index, attributes_count |
0 | 1134 |
1135 AccessFlags access_flags; | |
1136 jint flags = cfs->get_u2_fast() & JVM_RECOGNIZED_FIELD_MODIFIERS; | |
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1137 verify_legal_field_modifiers(flags, is_interface, CHECK_NULL); |
0 | 1138 access_flags.set_flags(flags); |
1139 | |
1140 u2 name_index = cfs->get_u2_fast(); | |
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1141 int cp_size = _cp->length(); |
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1142 check_property(valid_symbol_at(name_index), |
0 | 1143 "Invalid constant pool index %u for field name in class file %s", |
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1144 name_index, |
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1145 CHECK_NULL); |
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1146 Symbol* name = _cp->symbol_at(name_index); |
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1147 verify_legal_field_name(name, CHECK_NULL); |
0 | 1148 |
1149 u2 signature_index = cfs->get_u2_fast(); | |
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1150 check_property(valid_symbol_at(signature_index), |
0 | 1151 "Invalid constant pool index %u for field signature in class file %s", |
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1152 signature_index, CHECK_NULL); |
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1153 Symbol* sig = _cp->symbol_at(signature_index); |
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1154 verify_legal_field_signature(name, sig, CHECK_NULL); |
0 | 1155 |
1156 u2 constantvalue_index = 0; | |
1157 bool is_synthetic = false; | |
1158 u2 generic_signature_index = 0; | |
1159 bool is_static = access_flags.is_static(); | |
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1160 FieldAnnotationCollector parsed_annotations(_loader_data); |
0 | 1161 |
1162 u2 attributes_count = cfs->get_u2_fast(); | |
1163 if (attributes_count > 0) { | |
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1164 parse_field_attributes(attributes_count, is_static, signature_index, |
0 | 1165 &constantvalue_index, &is_synthetic, |
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1166 &generic_signature_index, &parsed_annotations, |
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1167 CHECK_NULL); |
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1168 if (parsed_annotations.field_annotations() != NULL) { |
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1169 if (_fields_annotations == NULL) { |
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1170 _fields_annotations = MetadataFactory::new_array<AnnotationArray*>( |
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1171 _loader_data, length, NULL, |
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1172 CHECK_NULL); |
0 | 1173 } |
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1174 _fields_annotations->at_put(n, parsed_annotations.field_annotations()); |
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1175 parsed_annotations.set_field_annotations(NULL); |
0 | 1176 } |
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1177 if (parsed_annotations.field_type_annotations() != NULL) { |
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1178 if (_fields_type_annotations == NULL) { |
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1179 _fields_type_annotations = MetadataFactory::new_array<AnnotationArray*>( |
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1180 _loader_data, length, NULL, |
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1181 CHECK_NULL); |
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1182 } |
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1183 _fields_type_annotations->at_put(n, parsed_annotations.field_type_annotations()); |
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1184 parsed_annotations.set_field_type_annotations(NULL); |
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1185 } |
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1186 |
0 | 1187 if (is_synthetic) { |
1188 access_flags.set_is_synthetic(); | |
1189 } | |
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1190 if (generic_signature_index != 0) { |
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1191 access_flags.set_field_has_generic_signature(); |
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1192 fa[generic_signature_slot] = generic_signature_index; |
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1193 generic_signature_slot ++; |
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1194 num_generic_signature ++; |
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1195 } |
0 | 1196 } |
1197 | |
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1198 FieldInfo* field = FieldInfo::from_field_array(fa, n); |
3938 | 1199 field->initialize(access_flags.as_short(), |
1200 name_index, | |
1201 signature_index, | |
7587 | 1202 constantvalue_index); |
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1203 BasicType type = _cp->basic_type_for_signature_at(signature_index); |
0 | 1204 |
1205 // Remember how many oops we encountered and compute allocation type | |
3938 | 1206 FieldAllocationType atype = fac->update(is_static, type); |
7587 | 1207 field->set_allocation_type(atype); |
1208 | |
1209 // After field is initialized with type, we can augment it with aux info | |
1210 if (parsed_annotations.has_any_annotations()) | |
1211 parsed_annotations.apply_to(field); | |
3938 | 1212 } |
1213 | |
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1214 int index = length; |
3938 | 1215 if (num_injected != 0) { |
1216 for (int n = 0; n < num_injected; n++) { | |
1217 // Check for duplicates | |
1218 if (injected[n].may_be_java) { | |
1219 Symbol* name = injected[n].name(); | |
1220 Symbol* signature = injected[n].signature(); | |
1221 bool duplicate = false; | |
1222 for (int i = 0; i < length; i++) { | |
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1223 FieldInfo* f = FieldInfo::from_field_array(fa, i); |
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1224 if (name == _cp->symbol_at(f->name_index()) && |
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1225 signature == _cp->symbol_at(f->signature_index())) { |
3938 | 1226 // Symbol is desclared in Java so skip this one |
1227 duplicate = true; | |
1228 break; | |
1229 } | |
1230 } | |
1231 if (duplicate) { | |
1232 // These will be removed from the field array at the end | |
1233 continue; | |
1234 } | |
1235 } | |
1236 | |
1237 // Injected field | |
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1238 FieldInfo* field = FieldInfo::from_field_array(fa, index); |
3938 | 1239 field->initialize(JVM_ACC_FIELD_INTERNAL, |
1240 injected[n].name_index, | |
1241 injected[n].signature_index, | |
1242 0); | |
1243 | |
1244 BasicType type = FieldType::basic_type(injected[n].signature()); | |
1245 | |
1246 // Remember how many oops we encountered and compute allocation type | |
1247 FieldAllocationType atype = fac->update(false, type); | |
7587 | 1248 field->set_allocation_type(atype); |
3938 | 1249 index++; |
1250 } | |
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1251 } |
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1252 |
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1253 // Now copy the fields' data from the temporary resource array. |
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1254 // Sometimes injected fields already exist in the Java source so |
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1255 // the fields array could be too long. In that case the |
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1256 // fields array is trimed. Also unused slots that were reserved |
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1257 // for generic signature indexes are discarded. |
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1258 Array<u2>* fields = MetadataFactory::new_array<u2>( |
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1259 _loader_data, index * FieldInfo::field_slots + num_generic_signature, |
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1260 CHECK_NULL); |
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1261 _fields = fields; // save in case of error |
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1262 { |
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1263 int i = 0; |
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1264 for (; i < index * FieldInfo::field_slots; i++) { |
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1265 fields->at_put(i, fa[i]); |
3938 | 1266 } |
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1267 for (int j = total_fields * FieldInfo::field_slots; |
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1268 j < generic_signature_slot; j++) { |
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1269 fields->at_put(i++, fa[j]); |
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1270 } |
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1271 assert(i == fields->length(), ""); |
0 | 1272 } |
1273 | |
1274 if (_need_verify && length > 1) { | |
1275 // Check duplicated fields | |
1276 ResourceMark rm(THREAD); | |
1277 NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD( | |
1278 THREAD, NameSigHash*, HASH_ROW_SIZE); | |
1279 initialize_hashtable(names_and_sigs); | |
1280 bool dup = false; | |
1281 { | |
1282 debug_only(No_Safepoint_Verifier nsv;) | |
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1283 for (AllFieldStream fs(fields, _cp); !fs.done(); fs.next()) { |
3938 | 1284 Symbol* name = fs.name(); |
1285 Symbol* sig = fs.signature(); | |
0 | 1286 // If no duplicates, add name/signature in hashtable names_and_sigs. |
1287 if (!put_after_lookup(name, sig, names_and_sigs)) { | |
1288 dup = true; | |
1289 break; | |
1290 } | |
1291 } | |
1292 } | |
1293 if (dup) { | |
1294 classfile_parse_error("Duplicate field name&signature in class file %s", | |
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1295 CHECK_NULL); |
0 | 1296 } |
1297 } | |
1298 | |
1299 return fields; | |
1300 } | |
1301 | |
1302 | |
1303 static void copy_u2_with_conversion(u2* dest, u2* src, int length) { | |
1304 while (length-- > 0) { | |
1305 *dest++ = Bytes::get_Java_u2((u1*) (src++)); | |
1306 } | |
1307 } | |
1308 | |
1309 | |
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1310 u2* ClassFileParser::parse_exception_table(u4 code_length, |
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1311 u4 exception_table_length, |
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1312 TRAPS) { |
0 | 1313 ClassFileStream* cfs = stream(); |
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1314 |
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1315 u2* exception_table_start = cfs->get_u2_buffer(); |
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1316 assert(exception_table_start != NULL, "null exception table"); |
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1317 cfs->guarantee_more(8 * exception_table_length, CHECK_NULL); // start_pc, end_pc, handler_pc, catch_type_index |
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1318 // Will check legal target after parsing code array in verifier. |
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1319 if (_need_verify) { |
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1320 for (unsigned int i = 0; i < exception_table_length; i++) { |
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1321 u2 start_pc = cfs->get_u2_fast(); |
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1322 u2 end_pc = cfs->get_u2_fast(); |
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1323 u2 handler_pc = cfs->get_u2_fast(); |
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1324 u2 catch_type_index = cfs->get_u2_fast(); |
0 | 1325 guarantee_property((start_pc < end_pc) && (end_pc <= code_length), |
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1326 "Illegal exception table range in class file %s", |
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1327 CHECK_NULL); |
0 | 1328 guarantee_property(handler_pc < code_length, |
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1329 "Illegal exception table handler in class file %s", |
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1330 CHECK_NULL); |
0 | 1331 if (catch_type_index != 0) { |
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1332 guarantee_property(valid_klass_reference_at(catch_type_index), |
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1333 "Catch type in exception table has bad constant type in class file %s", CHECK_NULL); |
0 | 1334 } |
1335 } | |
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1336 } else { |
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1337 cfs->skip_u2_fast(exception_table_length * 4); |
0 | 1338 } |
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1339 return exception_table_start; |
0 | 1340 } |
1341 | |
1342 void ClassFileParser::parse_linenumber_table( | |
1343 u4 code_attribute_length, u4 code_length, | |
1344 CompressedLineNumberWriteStream** write_stream, TRAPS) { | |
1345 ClassFileStream* cfs = stream(); | |
1346 unsigned int num_entries = cfs->get_u2(CHECK); | |
1347 | |
1348 // Each entry is a u2 start_pc, and a u2 line_number | |
1349 unsigned int length_in_bytes = num_entries * (sizeof(u2) + sizeof(u2)); | |
1350 | |
1351 // Verify line number attribute and table length | |
1352 check_property( | |
1353 code_attribute_length == sizeof(u2) + length_in_bytes, | |
1354 "LineNumberTable attribute has wrong length in class file %s", CHECK); | |
1355 | |
1356 cfs->guarantee_more(length_in_bytes, CHECK); | |
1357 | |
1358 if ((*write_stream) == NULL) { | |
1359 if (length_in_bytes > fixed_buffer_size) { | |
1360 (*write_stream) = new CompressedLineNumberWriteStream(length_in_bytes); | |
1361 } else { | |
1362 (*write_stream) = new CompressedLineNumberWriteStream( | |
1363 linenumbertable_buffer, fixed_buffer_size); | |
1364 } | |
1365 } | |
1366 | |
1367 while (num_entries-- > 0) { | |
1368 u2 bci = cfs->get_u2_fast(); // start_pc | |
1369 u2 line = cfs->get_u2_fast(); // line_number | |
1370 guarantee_property(bci < code_length, | |
1371 "Invalid pc in LineNumberTable in class file %s", CHECK); | |
1372 (*write_stream)->write_pair(bci, line); | |
1373 } | |
1374 } | |
1375 | |
1376 | |
1377 // Class file LocalVariableTable elements. | |
1378 class Classfile_LVT_Element VALUE_OBJ_CLASS_SPEC { | |
1379 public: | |
1380 u2 start_bci; | |
1381 u2 length; | |
1382 u2 name_cp_index; | |
1383 u2 descriptor_cp_index; | |
1384 u2 slot; | |
1385 }; | |
1386 | |
1387 | |
6197 | 1388 class LVT_Hash: public CHeapObj<mtClass> { |
0 | 1389 public: |
1390 LocalVariableTableElement *_elem; // element | |
1391 LVT_Hash* _next; // Next entry in hash table | |
1392 }; | |
1393 | |
1394 unsigned int hash(LocalVariableTableElement *elem) { | |
1395 unsigned int raw_hash = elem->start_bci; | |
1396 | |
1397 raw_hash = elem->length + raw_hash * 37; | |
1398 raw_hash = elem->name_cp_index + raw_hash * 37; | |
1399 raw_hash = elem->slot + raw_hash * 37; | |
1400 | |
1401 return raw_hash % HASH_ROW_SIZE; | |
1402 } | |
1403 | |
1404 void initialize_hashtable(LVT_Hash** table) { | |
1405 for (int i = 0; i < HASH_ROW_SIZE; i++) { | |
1406 table[i] = NULL; | |
1407 } | |
1408 } | |
1409 | |
1410 void clear_hashtable(LVT_Hash** table) { | |
1411 for (int i = 0; i < HASH_ROW_SIZE; i++) { | |
1412 LVT_Hash* current = table[i]; | |
1413 LVT_Hash* next; | |
1414 while (current != NULL) { | |
1415 next = current->_next; | |
1416 current->_next = NULL; | |
1417 delete(current); | |
1418 current = next; | |
1419 } | |
1420 table[i] = NULL; | |
1421 } | |
1422 } | |
1423 | |
1424 LVT_Hash* LVT_lookup(LocalVariableTableElement *elem, int index, LVT_Hash** table) { | |
1425 LVT_Hash* entry = table[index]; | |
1426 | |
1427 /* | |
1428 * 3-tuple start_bci/length/slot has to be unique key, | |
1429 * so the following comparison seems to be redundant: | |
1430 * && elem->name_cp_index == entry->_elem->name_cp_index | |
1431 */ | |
1432 while (entry != NULL) { | |
1433 if (elem->start_bci == entry->_elem->start_bci | |
1434 && elem->length == entry->_elem->length | |
1435 && elem->name_cp_index == entry->_elem->name_cp_index | |
1436 && elem->slot == entry->_elem->slot | |
1437 ) { | |
1438 return entry; | |
1439 } | |
1440 entry = entry->_next; | |
1441 } | |
1442 return NULL; | |
1443 } | |
1444 | |
1445 // Return false if the local variable is found in table. | |
1446 // Return true if no duplicate is found. | |
1447 // And local variable is added as a new entry in table. | |
1448 bool LVT_put_after_lookup(LocalVariableTableElement *elem, LVT_Hash** table) { | |
1449 // First lookup for duplicates | |
1450 int index = hash(elem); | |
1451 LVT_Hash* entry = LVT_lookup(elem, index, table); | |
1452 | |
1453 if (entry != NULL) { | |
1454 return false; | |
1455 } | |
1456 // No duplicate is found, allocate a new entry and fill it. | |
1457 if ((entry = new LVT_Hash()) == NULL) { | |
1458 return false; | |
1459 } | |
1460 entry->_elem = elem; | |
1461 | |
1462 // Insert into hash table | |
1463 entry->_next = table[index]; | |
1464 table[index] = entry; | |
1465 | |
1466 return true; | |
1467 } | |
1468 | |
1469 void copy_lvt_element(Classfile_LVT_Element *src, LocalVariableTableElement *lvt) { | |
1470 lvt->start_bci = Bytes::get_Java_u2((u1*) &src->start_bci); | |
1471 lvt->length = Bytes::get_Java_u2((u1*) &src->length); | |
1472 lvt->name_cp_index = Bytes::get_Java_u2((u1*) &src->name_cp_index); | |
1473 lvt->descriptor_cp_index = Bytes::get_Java_u2((u1*) &src->descriptor_cp_index); | |
1474 lvt->signature_cp_index = 0; | |
1475 lvt->slot = Bytes::get_Java_u2((u1*) &src->slot); | |
1476 } | |
1477 | |
1478 // Function is used to parse both attributes: | |
1479 // LocalVariableTable (LVT) and LocalVariableTypeTable (LVTT) | |
1480 u2* ClassFileParser::parse_localvariable_table(u4 code_length, | |
1481 u2 max_locals, | |
1482 u4 code_attribute_length, | |
1483 u2* localvariable_table_length, | |
1484 bool isLVTT, | |
1485 TRAPS) { | |
1486 ClassFileStream* cfs = stream(); | |
1487 const char * tbl_name = (isLVTT) ? "LocalVariableTypeTable" : "LocalVariableTable"; | |
1488 *localvariable_table_length = cfs->get_u2(CHECK_NULL); | |
1489 unsigned int size = (*localvariable_table_length) * sizeof(Classfile_LVT_Element) / sizeof(u2); | |
1490 // Verify local variable table attribute has right length | |
1491 if (_need_verify) { | |
1492 guarantee_property(code_attribute_length == (sizeof(*localvariable_table_length) + size * sizeof(u2)), | |
1493 "%s has wrong length in class file %s", tbl_name, CHECK_NULL); | |
1494 } | |
1495 u2* localvariable_table_start = cfs->get_u2_buffer(); | |
1496 assert(localvariable_table_start != NULL, "null local variable table"); | |
1497 if (!_need_verify) { | |
1498 cfs->skip_u2_fast(size); | |
1499 } else { | |
1500 cfs->guarantee_more(size * 2, CHECK_NULL); | |
1501 for(int i = 0; i < (*localvariable_table_length); i++) { | |
1502 u2 start_pc = cfs->get_u2_fast(); | |
1503 u2 length = cfs->get_u2_fast(); | |
1504 u2 name_index = cfs->get_u2_fast(); | |
1505 u2 descriptor_index = cfs->get_u2_fast(); | |
1506 u2 index = cfs->get_u2_fast(); | |
1507 // Assign to a u4 to avoid overflow | |
1508 u4 end_pc = (u4)start_pc + (u4)length; | |
1509 | |
1510 if (start_pc >= code_length) { | |
1511 classfile_parse_error( | |
1512 "Invalid start_pc %u in %s in class file %s", | |
1513 start_pc, tbl_name, CHECK_NULL); | |
1514 } | |
1515 if (end_pc > code_length) { | |
1516 classfile_parse_error( | |
1517 "Invalid length %u in %s in class file %s", | |
1518 length, tbl_name, CHECK_NULL); | |
1519 } | |
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1520 int cp_size = _cp->length(); |
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1521 guarantee_property(valid_symbol_at(name_index), |
0 | 1522 "Name index %u in %s has bad constant type in class file %s", |
1523 name_index, tbl_name, CHECK_NULL); | |
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1524 guarantee_property(valid_symbol_at(descriptor_index), |
0 | 1525 "Signature index %u in %s has bad constant type in class file %s", |
1526 descriptor_index, tbl_name, CHECK_NULL); | |
1527 | |
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1528 Symbol* name = _cp->symbol_at(name_index); |
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1529 Symbol* sig = _cp->symbol_at(descriptor_index); |
0 | 1530 verify_legal_field_name(name, CHECK_NULL); |
1531 u2 extra_slot = 0; | |
1532 if (!isLVTT) { | |
1533 verify_legal_field_signature(name, sig, CHECK_NULL); | |
1534 | |
1535 // 4894874: check special cases for double and long local variables | |
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1536 if (sig == vmSymbols::type_signature(T_DOUBLE) || |
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1537 sig == vmSymbols::type_signature(T_LONG)) { |
0 | 1538 extra_slot = 1; |
1539 } | |
1540 } | |
1541 guarantee_property((index + extra_slot) < max_locals, | |
1542 "Invalid index %u in %s in class file %s", | |
1543 index, tbl_name, CHECK_NULL); | |
1544 } | |
1545 } | |
1546 return localvariable_table_start; | |
1547 } | |
1548 | |
1549 | |
1550 void ClassFileParser::parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, | |
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1551 u1* u1_array, u2* u2_array, TRAPS) { |
0 | 1552 ClassFileStream* cfs = stream(); |
1553 u2 index = 0; // index in the array with long/double occupying two slots | |
1554 u4 i1 = *u1_index; | |
1555 u4 i2 = *u2_index + 1; | |
1556 for(int i = 0; i < array_length; i++) { | |
1557 u1 tag = u1_array[i1++] = cfs->get_u1(CHECK); | |
1558 index++; | |
1559 if (tag == ITEM_Long || tag == ITEM_Double) { | |
1560 index++; | |
1561 } else if (tag == ITEM_Object) { | |
1562 u2 class_index = u2_array[i2++] = cfs->get_u2(CHECK); | |
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1563 guarantee_property(valid_klass_reference_at(class_index), |
0 | 1564 "Bad class index %u in StackMap in class file %s", |
1565 class_index, CHECK); | |
1566 } else if (tag == ITEM_Uninitialized) { | |
1567 u2 offset = u2_array[i2++] = cfs->get_u2(CHECK); | |
1568 guarantee_property( | |
1569 offset < code_length, | |
1570 "Bad uninitialized type offset %u in StackMap in class file %s", | |
1571 offset, CHECK); | |
1572 } else { | |
1573 guarantee_property( | |
1574 tag <= (u1)ITEM_Uninitialized, | |
1575 "Unknown variable type %u in StackMap in class file %s", | |
1576 tag, CHECK); | |
1577 } | |
1578 } | |
1579 u2_array[*u2_index] = index; | |
1580 *u1_index = i1; | |
1581 *u2_index = i2; | |
1582 } | |
1583 | |
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1584 u1* ClassFileParser::parse_stackmap_table( |
0 | 1585 u4 code_attribute_length, TRAPS) { |
1586 if (code_attribute_length == 0) | |
1587 return NULL; | |
1588 | |
1589 ClassFileStream* cfs = stream(); | |
1590 u1* stackmap_table_start = cfs->get_u1_buffer(); | |
1591 assert(stackmap_table_start != NULL, "null stackmap table"); | |
1592 | |
1593 // check code_attribute_length first | |
1594 stream()->skip_u1(code_attribute_length, CHECK_NULL); | |
1595 | |
1596 if (!_need_verify && !DumpSharedSpaces) { | |
1597 return NULL; | |
1598 } | |
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1599 return stackmap_table_start; |
0 | 1600 } |
1601 | |
1602 u2* ClassFileParser::parse_checked_exceptions(u2* checked_exceptions_length, | |
1603 u4 method_attribute_length, | |
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1604 TRAPS) { |
0 | 1605 ClassFileStream* cfs = stream(); |
1606 cfs->guarantee_more(2, CHECK_NULL); // checked_exceptions_length | |
1607 *checked_exceptions_length = cfs->get_u2_fast(); | |
1608 unsigned int size = (*checked_exceptions_length) * sizeof(CheckedExceptionElement) / sizeof(u2); | |
1609 u2* checked_exceptions_start = cfs->get_u2_buffer(); | |
1610 assert(checked_exceptions_start != NULL, "null checked exceptions"); | |
1611 if (!_need_verify) { | |
1612 cfs->skip_u2_fast(size); | |
1613 } else { | |
1614 // Verify each value in the checked exception table | |
1615 u2 checked_exception; | |
1616 u2 len = *checked_exceptions_length; | |
1617 cfs->guarantee_more(2 * len, CHECK_NULL); | |
1618 for (int i = 0; i < len; i++) { | |
1619 checked_exception = cfs->get_u2_fast(); | |
1620 check_property( | |
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1621 valid_klass_reference_at(checked_exception), |
0 | 1622 "Exception name has bad type at constant pool %u in class file %s", |
1623 checked_exception, CHECK_NULL); | |
1624 } | |
1625 } | |
1626 // check exceptions attribute length | |
1627 if (_need_verify) { | |
1628 guarantee_property(method_attribute_length == (sizeof(*checked_exceptions_length) + | |
1629 sizeof(u2) * size), | |
1630 "Exceptions attribute has wrong length in class file %s", CHECK_NULL); | |
1631 } | |
1632 return checked_exceptions_start; | |
1633 } | |
1634 | |
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1635 void ClassFileParser::throwIllegalSignature( |
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1636 const char* type, Symbol* name, Symbol* sig, TRAPS) { |
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1637 ResourceMark rm(THREAD); |
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1638 Exceptions::fthrow(THREAD_AND_LOCATION, |
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1639 vmSymbols::java_lang_ClassFormatError(), |
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1640 "%s \"%s\" in class %s has illegal signature \"%s\"", type, |
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1641 name->as_C_string(), _class_name->as_C_string(), sig->as_C_string()); |
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1642 } |
0 | 1643 |
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1644 // Skip an annotation. Return >=limit if there is any problem. |
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1645 int ClassFileParser::skip_annotation(u1* buffer, int limit, int index) { |
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1646 // annotation := atype:u2 do(nmem:u2) {member:u2 value} |
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1647 // value := switch (tag:u1) { ... } |
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1648 index += 2; // skip atype |
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1649 if ((index += 2) >= limit) return limit; // read nmem |
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1650 int nmem = Bytes::get_Java_u2(buffer+index-2); |
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1651 while (--nmem >= 0 && index < limit) { |
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1652 index += 2; // skip member |
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1653 index = skip_annotation_value(buffer, limit, index); |
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1654 } |
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1655 return index; |
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1656 } |
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1657 |
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1658 // Skip an annotation value. Return >=limit if there is any problem. |
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1659 int ClassFileParser::skip_annotation_value(u1* buffer, int limit, int index) { |
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1660 // value := switch (tag:u1) { |
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1661 // case B, C, I, S, Z, D, F, J, c: con:u2; |
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1662 // case e: e_class:u2 e_name:u2; |
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1663 // case s: s_con:u2; |
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1664 // case [: do(nval:u2) {value}; |
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1665 // case @: annotation; |
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1666 // case s: s_con:u2; |
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1667 // } |
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6711908: JVM needs direct access to some annotations
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parents:
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diff
changeset
|
1668 if ((index += 1) >= limit) return limit; // read tag |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1669 u1 tag = buffer[index-1]; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1670 switch (tag) { |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1671 case 'B': case 'C': case 'I': case 'S': case 'Z': |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
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parents:
6100
diff
changeset
|
1672 case 'D': case 'F': case 'J': case 'c': case 's': |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1673 index += 2; // skip con or s_con |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1674 break; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1675 case 'e': |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1676 index += 4; // skip e_class, e_name |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1677 break; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1678 case '[': |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1679 { |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1680 if ((index += 2) >= limit) return limit; // read nval |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1681 int nval = Bytes::get_Java_u2(buffer+index-2); |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1682 while (--nval >= 0 && index < limit) { |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1683 index = skip_annotation_value(buffer, limit, index); |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1684 } |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1685 } |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1686 break; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1687 case '@': |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1688 index = skip_annotation(buffer, limit, index); |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1689 break; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1690 default: |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1691 assert(false, "annotation tag"); |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1692 return limit; // bad tag byte |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1693 } |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1694 return index; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1695 } |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1696 |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1697 // Sift through annotations, looking for those significant to the VM: |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
1698 void ClassFileParser::parse_annotations(u1* buffer, int limit, |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1699 ClassFileParser::AnnotationCollector* coll, |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1700 TRAPS) { |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1701 // annotations := do(nann:u2) {annotation} |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1702 int index = 0; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1703 if ((index += 2) >= limit) return; // read nann |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1704 int nann = Bytes::get_Java_u2(buffer+index-2); |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1705 enum { // initial annotation layout |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1706 atype_off = 0, // utf8 such as 'Ljava/lang/annotation/Retention;' |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1707 count_off = 2, // u2 such as 1 (one value) |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1708 member_off = 4, // utf8 such as 'value' |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1709 tag_off = 6, // u1 such as 'c' (type) or 'e' (enum) |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1710 e_tag_val = 'e', |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1711 e_type_off = 7, // utf8 such as 'Ljava/lang/annotation/RetentionPolicy;' |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1712 e_con_off = 9, // utf8 payload, such as 'SOURCE', 'CLASS', 'RUNTIME' |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1713 e_size = 11, // end of 'e' annotation |
7587 | 1714 c_tag_val = 'c', // payload is type |
1715 c_con_off = 7, // utf8 payload, such as 'I' | |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1716 c_size = 9, // end of 'c' annotation |
7587 | 1717 s_tag_val = 's', // payload is String |
1718 s_con_off = 7, // utf8 payload, such as 'Ljava/lang/String;' | |
1719 s_size = 9, | |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1720 min_size = 6 // smallest possible size (zero members) |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1721 }; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1722 while ((--nann) >= 0 && (index-2 + min_size <= limit)) { |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1723 int index0 = index; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1724 index = skip_annotation(buffer, limit, index); |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1725 u1* abase = buffer + index0; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1726 int atype = Bytes::get_Java_u2(abase + atype_off); |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1727 int count = Bytes::get_Java_u2(abase + count_off); |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
1728 Symbol* aname = check_symbol_at(_cp, atype); |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1729 if (aname == NULL) break; // invalid annotation name |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1730 Symbol* member = NULL; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1731 if (count >= 1) { |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1732 int member_index = Bytes::get_Java_u2(abase + member_off); |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
1733 member = check_symbol_at(_cp, member_index); |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1734 if (member == NULL) break; // invalid member name |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1735 } |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1736 |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1737 // Here is where parsing particular annotations will take place. |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
1738 AnnotationCollector::ID id = coll->annotation_index(_loader_data, aname); |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1739 if (id == AnnotationCollector::_unknown) continue; |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1740 coll->set_annotation(id); |
7587 | 1741 |
1742 if (id == AnnotationCollector::_sun_misc_Contended) { | |
10305
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1743 // @Contended can optionally specify the contention group. |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1744 // |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1745 // Contended group defines the equivalence class over the fields: |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1746 // the fields within the same contended group are not treated distinct. |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1747 // The only exception is default group, which does not incur the |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1748 // equivalence. Naturally, contention group for classes is meaningless. |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1749 // |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1750 // While the contention group is specified as String, annotation |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1751 // values are already interned, and we might as well use the constant |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1752 // pool index as the group tag. |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1753 // |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1754 u2 group_index = 0; // default contended group |
7587 | 1755 if (count == 1 |
1756 && s_size == (index - index0) // match size | |
1757 && s_tag_val == *(abase + tag_off) | |
1758 && member == vmSymbols::value_name()) { | |
10305
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1759 group_index = Bytes::get_Java_u2(abase + s_con_off); |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1760 if (_cp->symbol_at(group_index)->utf8_length() == 0) { |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1761 group_index = 0; // default contended group |
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1762 } |
7587 | 1763 } |
10305
50e9396d5257
8014509: @Contended: explicit default value behaves differently from the implicit value
shade
parents:
10303
diff
changeset
|
1764 coll->set_contended_group(group_index); |
7587 | 1765 } |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1766 } |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1767 } |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1768 |
7587 | 1769 ClassFileParser::AnnotationCollector::ID |
1770 ClassFileParser::AnnotationCollector::annotation_index(ClassLoaderData* loader_data, | |
1771 Symbol* name) { | |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1772 vmSymbols::SID sid = vmSymbols::find_sid(name); |
7639
22ead76da3f4
8006758: LinkResolver assertion (caused by @Contended changes)
kmo
parents:
7615
diff
changeset
|
1773 // Privileged code can use all annotations. Other code silently drops some. |
8866
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8719
diff
changeset
|
1774 const bool privileged = loader_data->is_the_null_class_loader_data() || |
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8719
diff
changeset
|
1775 loader_data->is_ext_class_loader_data() || |
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8719
diff
changeset
|
1776 loader_data->is_anonymous(); |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1777 switch (sid) { |
8866
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8719
diff
changeset
|
1778 case vmSymbols::VM_SYMBOL_ENUM_NAME(sun_reflect_CallerSensitive_signature): |
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8719
diff
changeset
|
1779 if (_location != _in_method) break; // only allow for methods |
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8719
diff
changeset
|
1780 if (!privileged) break; // only allow in privileged code |
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8719
diff
changeset
|
1781 return _method_CallerSensitive; |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1782 case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_ForceInline_signature): |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1783 if (_location != _in_method) break; // only allow for methods |
7587 | 1784 if (!privileged) break; // only allow in privileged code |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
1785 return _method_ForceInline; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1786 case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_DontInline_signature): |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1787 if (_location != _in_method) break; // only allow for methods |
7587 | 1788 if (!privileged) break; // only allow in privileged code |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1789 return _method_DontInline; |
23086
bf41eee321e5
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
20703
diff
changeset
|
1790 case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_InjectedProfile_signature): |
bf41eee321e5
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
20703
diff
changeset
|
1791 if (_location != _in_method) break; // only allow for methods |
bf41eee321e5
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
20703
diff
changeset
|
1792 if (!privileged) break; // only allow in privileged code |
bf41eee321e5
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
20703
diff
changeset
|
1793 return _method_InjectedProfile; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1794 case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_LambdaForm_Compiled_signature): |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1795 if (_location != _in_method) break; // only allow for methods |
7587 | 1796 if (!privileged) break; // only allow in privileged code |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1797 return _method_LambdaForm_Compiled; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1798 case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_LambdaForm_Hidden_signature): |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1799 if (_location != _in_method) break; // only allow for methods |
7587 | 1800 if (!privileged) break; // only allow in privileged code |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6227
diff
changeset
|
1801 return _method_LambdaForm_Hidden; |
12333
cacc4c6bfc80
8025233: Move sun.invoke.Stable into java.lang.invoke package
vlivanov
parents:
12269
diff
changeset
|
1802 case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_Stable_signature): |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12131
diff
changeset
|
1803 if (_location != _in_field) break; // only allow for fields |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12131
diff
changeset
|
1804 if (!privileged) break; // only allow in privileged code |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12131
diff
changeset
|
1805 return _field_Stable; |
7587 | 1806 case vmSymbols::VM_SYMBOL_ENUM_NAME(sun_misc_Contended_signature): |
1807 if (_location != _in_field && _location != _in_class) break; // only allow for fields and classes | |
1808 if (!EnableContended || (RestrictContended && !privileged)) break; // honor privileges | |
1809 return _sun_misc_Contended; | |
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1810 default: break; |
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1811 } |
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1812 return AnnotationCollector::_unknown; |
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1813 } |
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1814 |
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1815 void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) { |
7587 | 1816 if (is_contended()) |
1817 f->set_contended_group(contended_group()); | |
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1818 if (is_stable()) |
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1819 f->set_stable(true); |
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1820 } |
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1821 |
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1822 ClassFileParser::FieldAnnotationCollector::~FieldAnnotationCollector() { |
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1823 // If there's an error deallocate metadata for field annotations |
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1824 MetadataFactory::free_array<u1>(_loader_data, _field_annotations); |
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1825 MetadataFactory::free_array<u1>(_loader_data, _field_type_annotations); |
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1826 } |
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1827 |
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1828 void ClassFileParser::MethodAnnotationCollector::apply_to(methodHandle m) { |
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1829 if (has_annotation(_method_CallerSensitive)) |
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1830 m->set_caller_sensitive(true); |
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1831 if (has_annotation(_method_ForceInline)) |
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1832 m->set_force_inline(true); |
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1833 if (has_annotation(_method_DontInline)) |
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1834 m->set_dont_inline(true); |
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1835 if (has_annotation(_method_InjectedProfile)) |
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1836 m->set_has_injected_profile(true); |
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1837 if (has_annotation(_method_LambdaForm_Compiled) && m->intrinsic_id() == vmIntrinsics::_none) |
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1838 m->set_intrinsic_id(vmIntrinsics::_compiledLambdaForm); |
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1839 if (has_annotation(_method_LambdaForm_Hidden)) |
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1840 m->set_hidden(true); |
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1841 } |
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1842 |
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1843 void ClassFileParser::ClassAnnotationCollector::apply_to(instanceKlassHandle k) { |
7587 | 1844 k->set_is_contended(is_contended()); |
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1845 } |
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1846 |
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1847 |
0 | 1848 #define MAX_ARGS_SIZE 255 |
1849 #define MAX_CODE_SIZE 65535 | |
1850 #define INITIAL_MAX_LVT_NUMBER 256 | |
1851 | |
8031 | 1852 /* Copy class file LVT's/LVTT's into the HotSpot internal LVT. |
1853 * | |
1854 * Rules for LVT's and LVTT's are: | |
1855 * - There can be any number of LVT's and LVTT's. | |
1856 * - If there are n LVT's, it is the same as if there was just | |
1857 * one LVT containing all the entries from the n LVT's. | |
1858 * - There may be no more than one LVT entry per local variable. | |
1859 * Two LVT entries are 'equal' if these fields are the same: | |
1860 * start_pc, length, name, slot | |
1861 * - There may be no more than one LVTT entry per each LVT entry. | |
1862 * Each LVTT entry has to match some LVT entry. | |
1863 * - HotSpot internal LVT keeps natural ordering of class file LVT entries. | |
1864 */ | |
1865 void ClassFileParser::copy_localvariable_table(ConstMethod* cm, | |
1866 int lvt_cnt, | |
1867 u2* localvariable_table_length, | |
1868 u2** localvariable_table_start, | |
1869 int lvtt_cnt, | |
1870 u2* localvariable_type_table_length, | |
1871 u2** localvariable_type_table_start, | |
1872 TRAPS) { | |
1873 | |
1874 LVT_Hash** lvt_Hash = NEW_RESOURCE_ARRAY(LVT_Hash*, HASH_ROW_SIZE); | |
1875 initialize_hashtable(lvt_Hash); | |
1876 | |
1877 // To fill LocalVariableTable in | |
1878 Classfile_LVT_Element* cf_lvt; | |
1879 LocalVariableTableElement* lvt = cm->localvariable_table_start(); | |
1880 | |
1881 for (int tbl_no = 0; tbl_no < lvt_cnt; tbl_no++) { | |
1882 cf_lvt = (Classfile_LVT_Element *) localvariable_table_start[tbl_no]; | |
1883 for (int idx = 0; idx < localvariable_table_length[tbl_no]; idx++, lvt++) { | |
1884 copy_lvt_element(&cf_lvt[idx], lvt); | |
1885 // If no duplicates, add LVT elem in hashtable lvt_Hash. | |
1886 if (LVT_put_after_lookup(lvt, lvt_Hash) == false | |
1887 && _need_verify | |
1888 && _major_version >= JAVA_1_5_VERSION) { | |
1889 clear_hashtable(lvt_Hash); | |
1890 classfile_parse_error("Duplicated LocalVariableTable attribute " | |
1891 "entry for '%s' in class file %s", | |
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1892 _cp->symbol_at(lvt->name_cp_index)->as_utf8(), |
8031 | 1893 CHECK); |
1894 } | |
1895 } | |
1896 } | |
1897 | |
1898 // To merge LocalVariableTable and LocalVariableTypeTable | |
1899 Classfile_LVT_Element* cf_lvtt; | |
1900 LocalVariableTableElement lvtt_elem; | |
1901 | |
1902 for (int tbl_no = 0; tbl_no < lvtt_cnt; tbl_no++) { | |
1903 cf_lvtt = (Classfile_LVT_Element *) localvariable_type_table_start[tbl_no]; | |
1904 for (int idx = 0; idx < localvariable_type_table_length[tbl_no]; idx++) { | |
1905 copy_lvt_element(&cf_lvtt[idx], &lvtt_elem); | |
1906 int index = hash(&lvtt_elem); | |
1907 LVT_Hash* entry = LVT_lookup(&lvtt_elem, index, lvt_Hash); | |
1908 if (entry == NULL) { | |
1909 if (_need_verify) { | |
1910 clear_hashtable(lvt_Hash); | |
1911 classfile_parse_error("LVTT entry for '%s' in class file %s " | |
1912 "does not match any LVT entry", | |
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1913 _cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(), |
8031 | 1914 CHECK); |
1915 } | |
1916 } else if (entry->_elem->signature_cp_index != 0 && _need_verify) { | |
1917 clear_hashtable(lvt_Hash); | |
1918 classfile_parse_error("Duplicated LocalVariableTypeTable attribute " | |
1919 "entry for '%s' in class file %s", | |
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1920 _cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(), |
8031 | 1921 CHECK); |
1922 } else { | |
1923 // to add generic signatures into LocalVariableTable | |
1924 entry->_elem->signature_cp_index = lvtt_elem.descriptor_cp_index; | |
1925 } | |
1926 } | |
1927 } | |
1928 clear_hashtable(lvt_Hash); | |
1929 } | |
1930 | |
1931 | |
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1932 void ClassFileParser::copy_method_annotations(ConstMethod* cm, |
8031 | 1933 u1* runtime_visible_annotations, |
1934 int runtime_visible_annotations_length, | |
1935 u1* runtime_invisible_annotations, | |
1936 int runtime_invisible_annotations_length, | |
1937 u1* runtime_visible_parameter_annotations, | |
1938 int runtime_visible_parameter_annotations_length, | |
1939 u1* runtime_invisible_parameter_annotations, | |
1940 int runtime_invisible_parameter_annotations_length, | |
1941 u1* runtime_visible_type_annotations, | |
1942 int runtime_visible_type_annotations_length, | |
1943 u1* runtime_invisible_type_annotations, | |
1944 int runtime_invisible_type_annotations_length, | |
1945 u1* annotation_default, | |
1946 int annotation_default_length, | |
1947 TRAPS) { | |
1948 | |
1949 AnnotationArray* a; | |
1950 | |
1951 if (runtime_visible_annotations_length + | |
1952 runtime_invisible_annotations_length > 0) { | |
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1953 a = assemble_annotations(runtime_visible_annotations, |
8031 | 1954 runtime_visible_annotations_length, |
1955 runtime_invisible_annotations, | |
1956 runtime_invisible_annotations_length, | |
1957 CHECK); | |
1958 cm->set_method_annotations(a); | |
1959 } | |
1960 | |
1961 if (runtime_visible_parameter_annotations_length + | |
1962 runtime_invisible_parameter_annotations_length > 0) { | |
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1963 a = assemble_annotations(runtime_visible_parameter_annotations, |
8031 | 1964 runtime_visible_parameter_annotations_length, |
1965 runtime_invisible_parameter_annotations, | |
1966 runtime_invisible_parameter_annotations_length, | |
1967 CHECK); | |
1968 cm->set_parameter_annotations(a); | |
1969 } | |
1970 | |
1971 if (annotation_default_length > 0) { | |
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1972 a = assemble_annotations(annotation_default, |
8031 | 1973 annotation_default_length, |
1974 NULL, | |
1975 0, | |
1976 CHECK); | |
1977 cm->set_default_annotations(a); | |
1978 } | |
1979 | |
1980 if (runtime_visible_type_annotations_length + | |
1981 runtime_invisible_type_annotations_length > 0) { | |
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1982 a = assemble_annotations(runtime_visible_type_annotations, |
8031 | 1983 runtime_visible_type_annotations_length, |
1984 runtime_invisible_type_annotations, | |
1985 runtime_invisible_type_annotations_length, | |
1986 CHECK); | |
1987 cm->set_type_annotations(a); | |
1988 } | |
1989 } | |
1990 | |
1991 | |
0 | 1992 // Note: the parse_method below is big and clunky because all parsing of the code and exceptions |
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1993 // attribute is inlined. This is cumbersome to avoid since we inline most of the parts in the |
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1994 // Method* to save footprint, so we only know the size of the resulting Method* when the |
0 | 1995 // entire method attribute is parsed. |
1996 // | |
1997 // The promoted_flags parameter is used to pass relevant access_flags | |
1998 // from the method back up to the containing klass. These flag values | |
1999 // are added to klass's access_flags. | |
2000 | |
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2001 methodHandle ClassFileParser::parse_method(bool is_interface, |
0 | 2002 AccessFlags *promoted_flags, |
2003 TRAPS) { | |
2004 ClassFileStream* cfs = stream(); | |
2005 methodHandle nullHandle; | |
2006 ResourceMark rm(THREAD); | |
2007 // Parse fixed parts | |
2008 cfs->guarantee_more(8, CHECK_(nullHandle)); // access_flags, name_index, descriptor_index, attributes_count | |
2009 | |
2010 int flags = cfs->get_u2_fast(); | |
2011 u2 name_index = cfs->get_u2_fast(); | |
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2012 int cp_size = _cp->length(); |
0 | 2013 check_property( |
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2014 valid_symbol_at(name_index), |
0 | 2015 "Illegal constant pool index %u for method name in class file %s", |
2016 name_index, CHECK_(nullHandle)); | |
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2017 Symbol* name = _cp->symbol_at(name_index); |
0 | 2018 verify_legal_method_name(name, CHECK_(nullHandle)); |
2019 | |
2020 u2 signature_index = cfs->get_u2_fast(); | |
2021 guarantee_property( | |
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2022 valid_symbol_at(signature_index), |
0 | 2023 "Illegal constant pool index %u for method signature in class file %s", |
2024 signature_index, CHECK_(nullHandle)); | |
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2025 Symbol* signature = _cp->symbol_at(signature_index); |
0 | 2026 |
2027 AccessFlags access_flags; | |
2028 if (name == vmSymbols::class_initializer_name()) { | |
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2029 // We ignore the other access flags for a valid class initializer. |
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2030 // (JVM Spec 2nd ed., chapter 4.6) |
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2031 if (_major_version < 51) { // backward compatibility |
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2032 flags = JVM_ACC_STATIC; |
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2033 } else if ((flags & JVM_ACC_STATIC) == JVM_ACC_STATIC) { |
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2034 flags &= JVM_ACC_STATIC | JVM_ACC_STRICT; |
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2035 } |
0 | 2036 } else { |
2037 verify_legal_method_modifiers(flags, is_interface, name, CHECK_(nullHandle)); | |
2038 } | |
2039 | |
2040 int args_size = -1; // only used when _need_verify is true | |
2041 if (_need_verify) { | |
2042 args_size = ((flags & JVM_ACC_STATIC) ? 0 : 1) + | |
2043 verify_legal_method_signature(name, signature, CHECK_(nullHandle)); | |
2044 if (args_size > MAX_ARGS_SIZE) { | |
2045 classfile_parse_error("Too many arguments in method signature in class file %s", CHECK_(nullHandle)); | |
2046 } | |
2047 } | |
2048 | |
2049 access_flags.set_flags(flags & JVM_RECOGNIZED_METHOD_MODIFIERS); | |
2050 | |
2051 // Default values for code and exceptions attribute elements | |
2052 u2 max_stack = 0; | |
2053 u2 max_locals = 0; | |
2054 u4 code_length = 0; | |
2055 u1* code_start = 0; | |
2056 u2 exception_table_length = 0; | |
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2057 u2* exception_table_start = NULL; |
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2058 Array<int>* exception_handlers = Universe::the_empty_int_array(); |
0 | 2059 u2 checked_exceptions_length = 0; |
2060 u2* checked_exceptions_start = NULL; | |
2061 CompressedLineNumberWriteStream* linenumber_table = NULL; | |
2062 int linenumber_table_length = 0; | |
2063 int total_lvt_length = 0; | |
2064 u2 lvt_cnt = 0; | |
2065 u2 lvtt_cnt = 0; | |
2066 bool lvt_allocated = false; | |
2067 u2 max_lvt_cnt = INITIAL_MAX_LVT_NUMBER; | |
2068 u2 max_lvtt_cnt = INITIAL_MAX_LVT_NUMBER; | |
2069 u2* localvariable_table_length; | |
2070 u2** localvariable_table_start; | |
2071 u2* localvariable_type_table_length; | |
2072 u2** localvariable_type_table_start; | |
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2073 u2 method_parameters_length = 0; |
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2074 u1* method_parameters_data = NULL; |
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2075 bool method_parameters_seen = false; |
0 | 2076 bool parsed_code_attribute = false; |
2077 bool parsed_checked_exceptions_attribute = false; | |
2078 bool parsed_stackmap_attribute = false; | |
2079 // stackmap attribute - JDK1.5 | |
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2080 u1* stackmap_data = NULL; |
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2081 int stackmap_data_length = 0; |
0 | 2082 u2 generic_signature_index = 0; |
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2083 MethodAnnotationCollector parsed_annotations; |
0 | 2084 u1* runtime_visible_annotations = NULL; |
2085 int runtime_visible_annotations_length = 0; | |
2086 u1* runtime_invisible_annotations = NULL; | |
2087 int runtime_invisible_annotations_length = 0; | |
2088 u1* runtime_visible_parameter_annotations = NULL; | |
2089 int runtime_visible_parameter_annotations_length = 0; | |
2090 u1* runtime_invisible_parameter_annotations = NULL; | |
2091 int runtime_invisible_parameter_annotations_length = 0; | |
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2092 u1* runtime_visible_type_annotations = NULL; |
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2093 int runtime_visible_type_annotations_length = 0; |
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2094 u1* runtime_invisible_type_annotations = NULL; |
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2095 int runtime_invisible_type_annotations_length = 0; |
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2096 bool runtime_invisible_type_annotations_exists = false; |
0 | 2097 u1* annotation_default = NULL; |
2098 int annotation_default_length = 0; | |
2099 | |
2100 // Parse code and exceptions attribute | |
2101 u2 method_attributes_count = cfs->get_u2_fast(); | |
2102 while (method_attributes_count--) { | |
2103 cfs->guarantee_more(6, CHECK_(nullHandle)); // method_attribute_name_index, method_attribute_length | |
2104 u2 method_attribute_name_index = cfs->get_u2_fast(); | |
2105 u4 method_attribute_length = cfs->get_u4_fast(); | |
2106 check_property( | |
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2107 valid_symbol_at(method_attribute_name_index), |
0 | 2108 "Invalid method attribute name index %u in class file %s", |
2109 method_attribute_name_index, CHECK_(nullHandle)); | |
2110 | |
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2111 Symbol* method_attribute_name = _cp->symbol_at(method_attribute_name_index); |
0 | 2112 if (method_attribute_name == vmSymbols::tag_code()) { |
2113 // Parse Code attribute | |
2114 if (_need_verify) { | |
6934 | 2115 guarantee_property( |
2116 !access_flags.is_native() && !access_flags.is_abstract(), | |
0 | 2117 "Code attribute in native or abstract methods in class file %s", |
2118 CHECK_(nullHandle)); | |
2119 } | |
2120 if (parsed_code_attribute) { | |
2121 classfile_parse_error("Multiple Code attributes in class file %s", CHECK_(nullHandle)); | |
2122 } | |
2123 parsed_code_attribute = true; | |
2124 | |
2125 // Stack size, locals size, and code size | |
2126 if (_major_version == 45 && _minor_version <= 2) { | |
2127 cfs->guarantee_more(4, CHECK_(nullHandle)); | |
2128 max_stack = cfs->get_u1_fast(); | |
2129 max_locals = cfs->get_u1_fast(); | |
2130 code_length = cfs->get_u2_fast(); | |
2131 } else { | |
2132 cfs->guarantee_more(8, CHECK_(nullHandle)); | |
2133 max_stack = cfs->get_u2_fast(); | |
2134 max_locals = cfs->get_u2_fast(); | |
2135 code_length = cfs->get_u4_fast(); | |
2136 } | |
2137 if (_need_verify) { | |
2138 guarantee_property(args_size <= max_locals, | |
2139 "Arguments can't fit into locals in class file %s", CHECK_(nullHandle)); | |
2140 guarantee_property(code_length > 0 && code_length <= MAX_CODE_SIZE, | |
2141 "Invalid method Code length %u in class file %s", | |
2142 code_length, CHECK_(nullHandle)); | |
2143 } | |
2144 // Code pointer | |
2145 code_start = cfs->get_u1_buffer(); | |
2146 assert(code_start != NULL, "null code start"); | |
2147 cfs->guarantee_more(code_length, CHECK_(nullHandle)); | |
2148 cfs->skip_u1_fast(code_length); | |
2149 | |
2150 // Exception handler table | |
2151 cfs->guarantee_more(2, CHECK_(nullHandle)); // exception_table_length | |
2152 exception_table_length = cfs->get_u2_fast(); | |
2153 if (exception_table_length > 0) { | |
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2154 exception_table_start = |
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2155 parse_exception_table(code_length, exception_table_length, CHECK_(nullHandle)); |
0 | 2156 } |
2157 | |
2158 // Parse additional attributes in code attribute | |
2159 cfs->guarantee_more(2, CHECK_(nullHandle)); // code_attributes_count | |
2160 u2 code_attributes_count = cfs->get_u2_fast(); | |
92
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2161 |
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2162 unsigned int calculated_attribute_length = 0; |
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2163 |
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2164 if (_major_version > 45 || (_major_version == 45 && _minor_version > 2)) { |
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2165 calculated_attribute_length = |
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2166 sizeof(max_stack) + sizeof(max_locals) + sizeof(code_length); |
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2167 } else { |
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2168 // max_stack, locals and length are smaller in pre-version 45.2 classes |
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2169 calculated_attribute_length = sizeof(u1) + sizeof(u1) + sizeof(u2); |
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2170 } |
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2171 calculated_attribute_length += |
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2172 code_length + |
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2173 sizeof(exception_table_length) + |
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2174 sizeof(code_attributes_count) + |
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2175 exception_table_length * |
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2176 ( sizeof(u2) + // start_pc |
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2177 sizeof(u2) + // end_pc |
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2178 sizeof(u2) + // handler_pc |
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2179 sizeof(u2) ); // catch_type_index |
0 | 2180 |
2181 while (code_attributes_count--) { | |
2182 cfs->guarantee_more(6, CHECK_(nullHandle)); // code_attribute_name_index, code_attribute_length | |
2183 u2 code_attribute_name_index = cfs->get_u2_fast(); | |
2184 u4 code_attribute_length = cfs->get_u4_fast(); | |
2185 calculated_attribute_length += code_attribute_length + | |
2186 sizeof(code_attribute_name_index) + | |
2187 sizeof(code_attribute_length); | |
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2188 check_property(valid_symbol_at(code_attribute_name_index), |
0 | 2189 "Invalid code attribute name index %u in class file %s", |
2190 code_attribute_name_index, | |
2191 CHECK_(nullHandle)); | |
2192 if (LoadLineNumberTables && | |
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2193 _cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_line_number_table()) { |
0 | 2194 // Parse and compress line number table |
2195 parse_linenumber_table(code_attribute_length, code_length, | |
2196 &linenumber_table, CHECK_(nullHandle)); | |
2197 | |
2198 } else if (LoadLocalVariableTables && | |
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2199 _cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_table()) { |
0 | 2200 // Parse local variable table |
2201 if (!lvt_allocated) { | |
2202 localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2203 THREAD, u2, INITIAL_MAX_LVT_NUMBER); | |
2204 localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2205 THREAD, u2*, INITIAL_MAX_LVT_NUMBER); | |
2206 localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2207 THREAD, u2, INITIAL_MAX_LVT_NUMBER); | |
2208 localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2209 THREAD, u2*, INITIAL_MAX_LVT_NUMBER); | |
2210 lvt_allocated = true; | |
2211 } | |
2212 if (lvt_cnt == max_lvt_cnt) { | |
2213 max_lvt_cnt <<= 1; | |
12922 | 2214 localvariable_table_length = REALLOC_RESOURCE_ARRAY(u2, localvariable_table_length, lvt_cnt, max_lvt_cnt); |
2215 localvariable_table_start = REALLOC_RESOURCE_ARRAY(u2*, localvariable_table_start, lvt_cnt, max_lvt_cnt); | |
0 | 2216 } |
2217 localvariable_table_start[lvt_cnt] = | |
2218 parse_localvariable_table(code_length, | |
2219 max_locals, | |
2220 code_attribute_length, | |
2221 &localvariable_table_length[lvt_cnt], | |
2222 false, // is not LVTT | |
2223 CHECK_(nullHandle)); | |
2224 total_lvt_length += localvariable_table_length[lvt_cnt]; | |
2225 lvt_cnt++; | |
2226 } else if (LoadLocalVariableTypeTables && | |
2227 _major_version >= JAVA_1_5_VERSION && | |
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2228 _cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_type_table()) { |
0 | 2229 if (!lvt_allocated) { |
2230 localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2231 THREAD, u2, INITIAL_MAX_LVT_NUMBER); | |
2232 localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2233 THREAD, u2*, INITIAL_MAX_LVT_NUMBER); | |
2234 localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2235 THREAD, u2, INITIAL_MAX_LVT_NUMBER); | |
2236 localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2237 THREAD, u2*, INITIAL_MAX_LVT_NUMBER); | |
2238 lvt_allocated = true; | |
2239 } | |
2240 // Parse local variable type table | |
2241 if (lvtt_cnt == max_lvtt_cnt) { | |
2242 max_lvtt_cnt <<= 1; | |
12922 | 2243 localvariable_type_table_length = REALLOC_RESOURCE_ARRAY(u2, localvariable_type_table_length, lvtt_cnt, max_lvtt_cnt); |
2244 localvariable_type_table_start = REALLOC_RESOURCE_ARRAY(u2*, localvariable_type_table_start, lvtt_cnt, max_lvtt_cnt); | |
0 | 2245 } |
2246 localvariable_type_table_start[lvtt_cnt] = | |
2247 parse_localvariable_table(code_length, | |
2248 max_locals, | |
2249 code_attribute_length, | |
2250 &localvariable_type_table_length[lvtt_cnt], | |
2251 true, // is LVTT | |
2252 CHECK_(nullHandle)); | |
2253 lvtt_cnt++; | |
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2254 } else if (_major_version >= Verifier::STACKMAP_ATTRIBUTE_MAJOR_VERSION && |
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2255 _cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_stack_map_table()) { |
0 | 2256 // Stack map is only needed by the new verifier in JDK1.5. |
2257 if (parsed_stackmap_attribute) { | |
2258 classfile_parse_error("Multiple StackMapTable attributes in class file %s", CHECK_(nullHandle)); | |
2259 } | |
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2260 stackmap_data = parse_stackmap_table(code_attribute_length, CHECK_(nullHandle)); |
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2261 stackmap_data_length = code_attribute_length; |
0 | 2262 parsed_stackmap_attribute = true; |
2263 } else { | |
2264 // Skip unknown attributes | |
2265 cfs->skip_u1(code_attribute_length, CHECK_(nullHandle)); | |
2266 } | |
2267 } | |
2268 // check method attribute length | |
2269 if (_need_verify) { | |
2270 guarantee_property(method_attribute_length == calculated_attribute_length, | |
2271 "Code segment has wrong length in class file %s", CHECK_(nullHandle)); | |
2272 } | |
2273 } else if (method_attribute_name == vmSymbols::tag_exceptions()) { | |
2274 // Parse Exceptions attribute | |
2275 if (parsed_checked_exceptions_attribute) { | |
2276 classfile_parse_error("Multiple Exceptions attributes in class file %s", CHECK_(nullHandle)); | |
2277 } | |
2278 parsed_checked_exceptions_attribute = true; | |
2279 checked_exceptions_start = | |
2280 parse_checked_exceptions(&checked_exceptions_length, | |
2281 method_attribute_length, | |
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2282 CHECK_(nullHandle)); |
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2283 } else if (method_attribute_name == vmSymbols::tag_method_parameters()) { |
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2284 // reject multiple method parameters |
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2285 if (method_parameters_seen) { |
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2286 classfile_parse_error("Multiple MethodParameters attributes in class file %s", CHECK_(nullHandle)); |
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2287 } |
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2288 method_parameters_seen = true; |
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2289 method_parameters_length = cfs->get_u1_fast(); |
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2290 if (method_attribute_length != (method_parameters_length * 4u) + 1u) { |
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2291 classfile_parse_error( |
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2292 "Invalid MethodParameters method attribute length %u in class file", |
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2293 method_attribute_length, CHECK_(nullHandle)); |
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2294 } |
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2295 method_parameters_data = cfs->get_u1_buffer(); |
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2296 cfs->skip_u2_fast(method_parameters_length); |
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2297 cfs->skip_u2_fast(method_parameters_length); |
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2298 // ignore this attribute if it cannot be reflected |
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2299 if (!SystemDictionary::Parameter_klass_loaded()) |
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2300 method_parameters_length = 0; |
0 | 2301 } else if (method_attribute_name == vmSymbols::tag_synthetic()) { |
2302 if (method_attribute_length != 0) { | |
2303 classfile_parse_error( | |
2304 "Invalid Synthetic method attribute length %u in class file %s", | |
2305 method_attribute_length, CHECK_(nullHandle)); | |
2306 } | |
2307 // Should we check that there hasn't already been a synthetic attribute? | |
2308 access_flags.set_is_synthetic(); | |
2309 } else if (method_attribute_name == vmSymbols::tag_deprecated()) { // 4276120 | |
2310 if (method_attribute_length != 0) { | |
2311 classfile_parse_error( | |
2312 "Invalid Deprecated method attribute length %u in class file %s", | |
2313 method_attribute_length, CHECK_(nullHandle)); | |
2314 } | |
2315 } else if (_major_version >= JAVA_1_5_VERSION) { | |
2316 if (method_attribute_name == vmSymbols::tag_signature()) { | |
2317 if (method_attribute_length != 2) { | |
2318 classfile_parse_error( | |
2319 "Invalid Signature attribute length %u in class file %s", | |
2320 method_attribute_length, CHECK_(nullHandle)); | |
2321 } | |
17577 | 2322 generic_signature_index = parse_generic_signature_attribute(CHECK_(nullHandle)); |
0 | 2323 } else if (method_attribute_name == vmSymbols::tag_runtime_visible_annotations()) { |
2324 runtime_visible_annotations_length = method_attribute_length; | |
2325 runtime_visible_annotations = cfs->get_u1_buffer(); | |
2326 assert(runtime_visible_annotations != NULL, "null visible annotations"); | |
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2327 parse_annotations(runtime_visible_annotations, |
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2328 runtime_visible_annotations_length, &parsed_annotations, |
6934 | 2329 CHECK_(nullHandle)); |
0 | 2330 cfs->skip_u1(runtime_visible_annotations_length, CHECK_(nullHandle)); |
2331 } else if (PreserveAllAnnotations && method_attribute_name == vmSymbols::tag_runtime_invisible_annotations()) { | |
2332 runtime_invisible_annotations_length = method_attribute_length; | |
2333 runtime_invisible_annotations = cfs->get_u1_buffer(); | |
2334 assert(runtime_invisible_annotations != NULL, "null invisible annotations"); | |
2335 cfs->skip_u1(runtime_invisible_annotations_length, CHECK_(nullHandle)); | |
2336 } else if (method_attribute_name == vmSymbols::tag_runtime_visible_parameter_annotations()) { | |
2337 runtime_visible_parameter_annotations_length = method_attribute_length; | |
2338 runtime_visible_parameter_annotations = cfs->get_u1_buffer(); | |
2339 assert(runtime_visible_parameter_annotations != NULL, "null visible parameter annotations"); | |
2340 cfs->skip_u1(runtime_visible_parameter_annotations_length, CHECK_(nullHandle)); | |
2341 } else if (PreserveAllAnnotations && method_attribute_name == vmSymbols::tag_runtime_invisible_parameter_annotations()) { | |
2342 runtime_invisible_parameter_annotations_length = method_attribute_length; | |
2343 runtime_invisible_parameter_annotations = cfs->get_u1_buffer(); | |
2344 assert(runtime_invisible_parameter_annotations != NULL, "null invisible parameter annotations"); | |
2345 cfs->skip_u1(runtime_invisible_parameter_annotations_length, CHECK_(nullHandle)); | |
2346 } else if (method_attribute_name == vmSymbols::tag_annotation_default()) { | |
2347 annotation_default_length = method_attribute_length; | |
2348 annotation_default = cfs->get_u1_buffer(); | |
2349 assert(annotation_default != NULL, "null annotation default"); | |
2350 cfs->skip_u1(annotation_default_length, CHECK_(nullHandle)); | |
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2351 } else if (method_attribute_name == vmSymbols::tag_runtime_visible_type_annotations()) { |
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2352 if (runtime_visible_type_annotations != NULL) { |
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2353 classfile_parse_error( |
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2354 "Multiple RuntimeVisibleTypeAnnotations attributes for method in class file %s", |
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2355 CHECK_(nullHandle)); |
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2356 } |
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|
2357 runtime_visible_type_annotations_length = method_attribute_length; |
35431a769282
8004823: Add VM support for type annotation reflection
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7187
diff
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|
2358 runtime_visible_type_annotations = cfs->get_u1_buffer(); |
35431a769282
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stefank
parents:
7187
diff
changeset
|
2359 assert(runtime_visible_type_annotations != NULL, "null visible type annotations"); |
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
2360 // No need for the VM to parse Type annotations |
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
2361 cfs->skip_u1(runtime_visible_type_annotations_length, CHECK_(nullHandle)); |
12201
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2362 } else if (method_attribute_name == vmSymbols::tag_runtime_invisible_type_annotations()) { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2363 if (runtime_invisible_type_annotations_exists) { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2364 classfile_parse_error( |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2365 "Multiple RuntimeInvisibleTypeAnnotations attributes for method in class file %s", |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2366 CHECK_(nullHandle)); |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2367 } else { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2368 runtime_invisible_type_annotations_exists = true; |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2369 } |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2370 if (PreserveAllAnnotations) { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2371 runtime_invisible_type_annotations_length = method_attribute_length; |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2372 runtime_invisible_type_annotations = cfs->get_u1_buffer(); |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2373 assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations"); |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2374 } |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2375 cfs->skip_u1(method_attribute_length, CHECK_(nullHandle)); |
0 | 2376 } else { |
2377 // Skip unknown attributes | |
2378 cfs->skip_u1(method_attribute_length, CHECK_(nullHandle)); | |
2379 } | |
2380 } else { | |
2381 // Skip unknown attributes | |
2382 cfs->skip_u1(method_attribute_length, CHECK_(nullHandle)); | |
2383 } | |
2384 } | |
2385 | |
2386 if (linenumber_table != NULL) { | |
2387 linenumber_table->write_terminator(); | |
2388 linenumber_table_length = linenumber_table->position(); | |
2389 } | |
2390 | |
2391 // Make sure there's at least one Code attribute in non-native/non-abstract method | |
2392 if (_need_verify) { | |
2393 guarantee_property(access_flags.is_native() || access_flags.is_abstract() || parsed_code_attribute, | |
2394 "Absent Code attribute in method that is not native or abstract in class file %s", CHECK_(nullHandle)); | |
2395 } | |
2396 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2397 // All sizing information for a Method* is finally available, now create it |
8031 | 2398 InlineTableSizes sizes( |
2399 total_lvt_length, | |
2400 linenumber_table_length, | |
2401 exception_table_length, | |
2402 checked_exceptions_length, | |
2403 method_parameters_length, | |
2404 generic_signature_index, | |
2405 runtime_visible_annotations_length + | |
2406 runtime_invisible_annotations_length, | |
2407 runtime_visible_parameter_annotations_length + | |
2408 runtime_invisible_parameter_annotations_length, | |
2409 runtime_visible_type_annotations_length + | |
2410 runtime_invisible_type_annotations_length, | |
2411 annotation_default_length, | |
2412 0); | |
2413 | |
6934 | 2414 Method* m = Method::allocate( |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2415 _loader_data, code_length, access_flags, &sizes, |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2416 ConstMethod::NORMAL, CHECK_(nullHandle)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2417 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2418 ClassLoadingService::add_class_method_size(m->size()*HeapWordSize); |
0 | 2419 |
2420 // Fill in information from fixed part (access_flags already set) | |
8719
c8b31b461e1a
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coleenp
parents:
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diff
changeset
|
2421 m->set_constants(_cp); |
0 | 2422 m->set_name_index(name_index); |
2423 m->set_signature_index(signature_index); | |
23614 | 2424 |
8719
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coleenp
parents:
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diff
changeset
|
2425 ResultTypeFinder rtf(_cp->symbol_at(signature_index)); |
23614 | 2426 m->constMethod()->set_result_type(rtf.type()); |
0 | 2427 |
2428 if (args_size >= 0) { | |
2429 m->set_size_of_parameters(args_size); | |
2430 } else { | |
2431 m->compute_size_of_parameters(THREAD); | |
2432 } | |
2433 #ifdef ASSERT | |
2434 if (args_size >= 0) { | |
2435 m->compute_size_of_parameters(THREAD); | |
2436 assert(args_size == m->size_of_parameters(), ""); | |
2437 } | |
2438 #endif | |
2439 | |
2440 // Fill in code attribute information | |
2441 m->set_max_stack(max_stack); | |
2442 m->set_max_locals(max_locals); | |
8719
c8b31b461e1a
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coleenp
parents:
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diff
changeset
|
2443 if (stackmap_data != NULL) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2444 m->constMethod()->copy_stackmap_data(_loader_data, stackmap_data, |
c8b31b461e1a
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coleenp
parents:
8716
diff
changeset
|
2445 stackmap_data_length, CHECK_NULL); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2446 } |
0 | 2447 |
2448 // Copy byte codes | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1108
diff
changeset
|
2449 m->set_code(code_start); |
0 | 2450 |
2451 // Copy line number table | |
2452 if (linenumber_table != NULL) { | |
2453 memcpy(m->compressed_linenumber_table(), | |
2454 linenumber_table->buffer(), linenumber_table_length); | |
2455 } | |
2456 | |
6213
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2457 // Copy exception table |
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2458 if (exception_table_length > 0) { |
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2459 int size = |
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2460 exception_table_length * sizeof(ExceptionTableElement) / sizeof(u2); |
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2461 copy_u2_with_conversion((u2*) m->exception_table_start(), |
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2462 exception_table_start, size); |
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2463 } |
8150fa46d2ed
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
6100
diff
changeset
|
2464 |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2465 // Copy method parameters |
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2466 if (method_parameters_length > 0) { |
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2467 MethodParametersElement* elem = m->constMethod()->method_parameters_start(); |
7983
24a91505f9d5
8006949: Update hotspot for MethodParameters format change
emc
parents:
7639
diff
changeset
|
2468 for (int i = 0; i < method_parameters_length; i++) { |
24a91505f9d5
8006949: Update hotspot for MethodParameters format change
emc
parents:
7639
diff
changeset
|
2469 elem[i].name_cp_index = Bytes::get_Java_u2(method_parameters_data); |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2470 method_parameters_data += 2; |
10154
d1644a010f52
8007154: Remove support for u4 MethodParameter flags fields
emc
parents:
10128
diff
changeset
|
2471 elem[i].flags = Bytes::get_Java_u2(method_parameters_data); |
d1644a010f52
8007154: Remove support for u4 MethodParameter flags fields
emc
parents:
10128
diff
changeset
|
2472 method_parameters_data += 2; |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2473 } |
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2474 } |
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
2475 |
0 | 2476 // Copy checked exceptions |
2477 if (checked_exceptions_length > 0) { | |
2478 int size = checked_exceptions_length * sizeof(CheckedExceptionElement) / sizeof(u2); | |
2479 copy_u2_with_conversion((u2*) m->checked_exceptions_start(), checked_exceptions_start, size); | |
2480 } | |
2481 | |
8031 | 2482 // Copy class file LVT's/LVTT's into the HotSpot internal LVT. |
0 | 2483 if (total_lvt_length > 0) { |
2484 promoted_flags->set_has_localvariable_table(); | |
8031 | 2485 copy_localvariable_table(m->constMethod(), lvt_cnt, |
2486 localvariable_table_length, | |
2487 localvariable_table_start, | |
2488 lvtt_cnt, | |
2489 localvariable_type_table_length, | |
2490 localvariable_type_table_start, CHECK_NULL); | |
0 | 2491 } |
2492 | |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
2493 if (parsed_annotations.has_any_annotations()) |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
2494 parsed_annotations.apply_to(m); |
8031 | 2495 |
2496 // Copy annotations | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2497 copy_method_annotations(m->constMethod(), |
8031 | 2498 runtime_visible_annotations, |
2499 runtime_visible_annotations_length, | |
2500 runtime_invisible_annotations, | |
2501 runtime_invisible_annotations_length, | |
2502 runtime_visible_parameter_annotations, | |
2503 runtime_visible_parameter_annotations_length, | |
2504 runtime_invisible_parameter_annotations, | |
2505 runtime_invisible_parameter_annotations_length, | |
2506 runtime_visible_type_annotations, | |
2507 runtime_visible_type_annotations_length, | |
2508 runtime_invisible_type_annotations, | |
2509 runtime_invisible_type_annotations_length, | |
2510 annotation_default, | |
2511 annotation_default_length, | |
2512 CHECK_NULL); | |
0 | 2513 |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
2514 if (name == vmSymbols::finalize_method_name() && |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
2515 signature == vmSymbols::void_method_signature()) { |
0 | 2516 if (m->is_empty_method()) { |
2517 _has_empty_finalizer = true; | |
2518 } else { | |
2519 _has_finalizer = true; | |
2520 } | |
2521 } | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
2522 if (name == vmSymbols::object_initializer_name() && |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
2523 signature == vmSymbols::void_method_signature() && |
0 | 2524 m->is_vanilla_constructor()) { |
2525 _has_vanilla_constructor = true; | |
2526 } | |
2527 | |
8031 | 2528 NOT_PRODUCT(m->verify()); |
0 | 2529 return m; |
2530 } | |
2531 | |
2532 | |
2533 // The promoted_flags parameter is used to pass relevant access_flags | |
2534 // from the methods back up to the containing klass. These flag values | |
2535 // are added to klass's access_flags. | |
2536 | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2537 Array<Method*>* ClassFileParser::parse_methods(bool is_interface, |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
2538 AccessFlags* promoted_flags, |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
2539 bool* has_final_method, |
20576
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
2540 bool* declares_default_methods, |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
2541 TRAPS) { |
0 | 2542 ClassFileStream* cfs = stream(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2543 cfs->guarantee_more(2, CHECK_NULL); // length |
0 | 2544 u2 length = cfs->get_u2_fast(); |
2545 if (length == 0) { | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2546 _methods = Universe::the_empty_method_array(); |
0 | 2547 } else { |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2548 _methods = MetadataFactory::new_array<Method*>(_loader_data, length, NULL, CHECK_NULL); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2549 |
0 | 2550 HandleMark hm(THREAD); |
2551 for (int index = 0; index < length; index++) { | |
8719
c8b31b461e1a
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coleenp
parents:
8716
diff
changeset
|
2552 methodHandle method = parse_method(is_interface, |
0 | 2553 promoted_flags, |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2554 CHECK_NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2555 |
0 | 2556 if (method->is_final()) { |
2557 *has_final_method = true; | |
2558 } | |
20576
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
2559 // declares_default_methods: declares concrete instance methods, any access flags |
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
2560 // used for interface initialization, and default method inheritance analysis |
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
2561 if (is_interface && !(*declares_default_methods) |
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
2562 && !method->is_abstract() && !method->is_static()) { |
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
2563 *declares_default_methods = true; |
6934 | 2564 } |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2565 _methods->at_put(index, method()); |
0 | 2566 } |
7457
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
2567 |
0 | 2568 if (_need_verify && length > 1) { |
2569 // Check duplicated methods | |
2570 ResourceMark rm(THREAD); | |
2571 NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD( | |
2572 THREAD, NameSigHash*, HASH_ROW_SIZE); | |
2573 initialize_hashtable(names_and_sigs); | |
2574 bool dup = false; | |
2575 { | |
2576 debug_only(No_Safepoint_Verifier nsv;) | |
2577 for (int i = 0; i < length; i++) { | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2578 Method* m = _methods->at(i); |
0 | 2579 // If no duplicates, add name/signature in hashtable names_and_sigs. |
2580 if (!put_after_lookup(m->name(), m->signature(), names_and_sigs)) { | |
2581 dup = true; | |
2582 break; | |
2583 } | |
2584 } | |
2585 } | |
2586 if (dup) { | |
2587 classfile_parse_error("Duplicate method name&signature in class file %s", | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2588 CHECK_NULL); |
0 | 2589 } |
2590 } | |
2591 } | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2592 return _methods; |
0 | 2593 } |
2594 | |
2595 | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
2596 intArray* ClassFileParser::sort_methods(Array<Method*>* methods) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2597 int length = methods->length(); |
3245
8ce625481709
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
2461
diff
changeset
|
2598 // If JVMTI original method ordering or sharing is enabled we have to |
0 | 2599 // remember the original class file ordering. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2600 // We temporarily use the vtable_index field in the Method* to store the |
0 | 2601 // class file index, so we can read in after calling qsort. |
3245
8ce625481709
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
2461
diff
changeset
|
2602 // Put the method ordering in the shared archive. |
8ce625481709
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
2461
diff
changeset
|
2603 if (JvmtiExport::can_maintain_original_method_order() || DumpSharedSpaces) { |
0 | 2604 for (int index = 0; index < length; index++) { |
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2605 Method* m = methods->at(index); |
0 | 2606 assert(!m->valid_vtable_index(), "vtable index should not be set"); |
2607 m->set_vtable_index(index); | |
2608 } | |
2609 } | |
2610 // Sort method array by ascending method name (for faster lookups & vtable construction) | |
2177
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2611 // Note that the ordering is not alphabetical, see Symbol::fast_compare |
8031 | 2612 Method::sort_methods(methods); |
0 | 2613 |
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2614 intArray* method_ordering = NULL; |
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2615 // If JVMTI original method ordering or sharing is enabled construct int |
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2616 // array remembering the original ordering |
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2617 if (JvmtiExport::can_maintain_original_method_order() || DumpSharedSpaces) { |
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2618 method_ordering = new intArray(length); |
0 | 2619 for (int index = 0; index < length; index++) { |
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2620 Method* m = methods->at(index); |
0 | 2621 int old_index = m->vtable_index(); |
2622 assert(old_index >= 0 && old_index < length, "invalid method index"); | |
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2623 method_ordering->at_put(index, old_index); |
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2624 m->set_vtable_index(Method::invalid_vtable_index); |
0 | 2625 } |
2626 } | |
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2627 return method_ordering; |
0 | 2628 } |
2629 | |
17577 | 2630 // Parse generic_signature attribute for methods and fields |
2631 u2 ClassFileParser::parse_generic_signature_attribute(TRAPS) { | |
2632 ClassFileStream* cfs = stream(); | |
2633 cfs->guarantee_more(2, CHECK_0); // generic_signature_index | |
2634 u2 generic_signature_index = cfs->get_u2_fast(); | |
2635 check_property( | |
2636 valid_symbol_at(generic_signature_index), | |
2637 "Invalid Signature attribute at constant pool index %u in class file %s", | |
2638 generic_signature_index, CHECK_0); | |
2639 return generic_signature_index; | |
2640 } | |
0 | 2641 |
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2642 void ClassFileParser::parse_classfile_sourcefile_attribute(TRAPS) { |
0 | 2643 ClassFileStream* cfs = stream(); |
2644 cfs->guarantee_more(2, CHECK); // sourcefile_index | |
2645 u2 sourcefile_index = cfs->get_u2_fast(); | |
2646 check_property( | |
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2647 valid_symbol_at(sourcefile_index), |
0 | 2648 "Invalid SourceFile attribute at constant pool index %u in class file %s", |
2649 sourcefile_index, CHECK); | |
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2650 set_class_sourcefile_index(sourcefile_index); |
0 | 2651 } |
2652 | |
2653 | |
2654 | |
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2655 void ClassFileParser::parse_classfile_source_debug_extension_attribute(int length, TRAPS) { |
0 | 2656 ClassFileStream* cfs = stream(); |
2657 u1* sde_buffer = cfs->get_u1_buffer(); | |
2658 assert(sde_buffer != NULL, "null sde buffer"); | |
2659 | |
2660 // Don't bother storing it if there is no way to retrieve it | |
2661 if (JvmtiExport::can_get_source_debug_extension()) { | |
6226 | 2662 assert((length+1) > length, "Overflow checking"); |
2663 u1* sde = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, u1, length+1); | |
2664 for (int i = 0; i < length; i++) { | |
2665 sde[i] = sde_buffer[i]; | |
2666 } | |
2667 sde[length] = '\0'; | |
2668 set_class_sde_buffer((char*)sde, length); | |
0 | 2669 } |
2670 // Got utf8 string, set stream position forward | |
2671 cfs->skip_u1(length, CHECK); | |
2672 } | |
2673 | |
2674 | |
2675 // Inner classes can be static, private or protected (classic VM does this) | |
2676 #define RECOGNIZED_INNER_CLASS_MODIFIERS (JVM_RECOGNIZED_CLASS_MODIFIERS | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED | JVM_ACC_STATIC) | |
2677 | |
2678 // Return number of classes in the inner classes attribute table | |
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2679 u2 ClassFileParser::parse_classfile_inner_classes_attribute(u1* inner_classes_attribute_start, |
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2680 bool parsed_enclosingmethod_attribute, |
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2681 u2 enclosing_method_class_index, |
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|
2682 u2 enclosing_method_method_index, |
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|
2683 TRAPS) { |
0 | 2684 ClassFileStream* cfs = stream(); |
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2685 u1* current_mark = cfs->current(); |
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2686 u2 length = 0; |
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|
2687 if (inner_classes_attribute_start != NULL) { |
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|
2688 cfs->set_current(inner_classes_attribute_start); |
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|
2689 cfs->guarantee_more(2, CHECK_0); // length |
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|
2690 length = cfs->get_u2_fast(); |
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|
2691 } |
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|
2692 |
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|
2693 // 4-tuples of shorts of inner classes data and 2 shorts of enclosing |
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|
2694 // method data: |
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|
2695 // [inner_class_info_index, |
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|
2696 // outer_class_info_index, |
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|
2697 // inner_name_index, |
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|
2698 // inner_class_access_flags, |
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|
2699 // ... |
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|
2700 // enclosing_method_class_index, |
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|
2701 // enclosing_method_method_index] |
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|
2702 int size = length * 4 + (parsed_enclosingmethod_attribute ? 2 : 0); |
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|
2703 Array<u2>* inner_classes = MetadataFactory::new_array<u2>(_loader_data, size, CHECK_0); |
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2704 _inner_classes = inner_classes; |
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2705 |
0 | 2706 int index = 0; |
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|
2707 int cp_size = _cp->length(); |
0 | 2708 cfs->guarantee_more(8 * length, CHECK_0); // 4-tuples of u2 |
2709 for (int n = 0; n < length; n++) { | |
2710 // Inner class index | |
2711 u2 inner_class_info_index = cfs->get_u2_fast(); | |
2712 check_property( | |
2713 inner_class_info_index == 0 || | |
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|
2714 valid_klass_reference_at(inner_class_info_index), |
0 | 2715 "inner_class_info_index %u has bad constant type in class file %s", |
2716 inner_class_info_index, CHECK_0); | |
2717 // Outer class index | |
2718 u2 outer_class_info_index = cfs->get_u2_fast(); | |
2719 check_property( | |
2720 outer_class_info_index == 0 || | |
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|
2721 valid_klass_reference_at(outer_class_info_index), |
0 | 2722 "outer_class_info_index %u has bad constant type in class file %s", |
2723 outer_class_info_index, CHECK_0); | |
2724 // Inner class name | |
2725 u2 inner_name_index = cfs->get_u2_fast(); | |
2726 check_property( | |
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|
2727 inner_name_index == 0 || valid_symbol_at(inner_name_index), |
0 | 2728 "inner_name_index %u has bad constant type in class file %s", |
2729 inner_name_index, CHECK_0); | |
2730 if (_need_verify) { | |
2731 guarantee_property(inner_class_info_index != outer_class_info_index, | |
2732 "Class is both outer and inner class in class file %s", CHECK_0); | |
2733 } | |
2734 // Access flags | |
2735 AccessFlags inner_access_flags; | |
2736 jint flags = cfs->get_u2_fast() & RECOGNIZED_INNER_CLASS_MODIFIERS; | |
2737 if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) { | |
2738 // Set abstract bit for old class files for backward compatibility | |
2739 flags |= JVM_ACC_ABSTRACT; | |
2740 } | |
2741 verify_legal_class_modifiers(flags, CHECK_0); | |
2742 inner_access_flags.set_flags(flags); | |
2743 | |
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|
2744 inner_classes->at_put(index++, inner_class_info_index); |
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2745 inner_classes->at_put(index++, outer_class_info_index); |
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|
2746 inner_classes->at_put(index++, inner_name_index); |
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|
2747 inner_classes->at_put(index++, inner_access_flags.as_short()); |
0 | 2748 } |
2749 | |
2750 // 4347400: make sure there's no duplicate entry in the classes array | |
2751 if (_need_verify && _major_version >= JAVA_1_5_VERSION) { | |
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|
2752 for(int i = 0; i < length * 4; i += 4) { |
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|
2753 for(int j = i + 4; j < length * 4; j += 4) { |
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|
2754 guarantee_property((inner_classes->at(i) != inner_classes->at(j) || |
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|
2755 inner_classes->at(i+1) != inner_classes->at(j+1) || |
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|
2756 inner_classes->at(i+2) != inner_classes->at(j+2) || |
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|
2757 inner_classes->at(i+3) != inner_classes->at(j+3)), |
0 | 2758 "Duplicate entry in InnerClasses in class file %s", |
2759 CHECK_0); | |
2760 } | |
2761 } | |
2762 } | |
2763 | |
5967
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|
2764 // Set EnclosingMethod class and method indexes. |
f7c4174b33ba
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|
2765 if (parsed_enclosingmethod_attribute) { |
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|
2766 inner_classes->at_put(index++, enclosing_method_class_index); |
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|
2767 inner_classes->at_put(index++, enclosing_method_method_index); |
5967
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|
2768 } |
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diff
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|
2769 assert(index == size, "wrong size"); |
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|
2770 |
f7c4174b33ba
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|
2771 // Restore buffer's current position. |
f7c4174b33ba
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|
2772 cfs->set_current(current_mark); |
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|
2773 |
0 | 2774 return length; |
2775 } | |
2776 | |
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|
2777 void ClassFileParser::parse_classfile_synthetic_attribute(TRAPS) { |
6222
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|
2778 set_class_synthetic_flag(true); |
0 | 2779 } |
2780 | |
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|
2781 void ClassFileParser::parse_classfile_signature_attribute(TRAPS) { |
0 | 2782 ClassFileStream* cfs = stream(); |
2783 u2 signature_index = cfs->get_u2(CHECK); | |
2784 check_property( | |
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|
2785 valid_symbol_at(signature_index), |
0 | 2786 "Invalid constant pool index %u in Signature attribute in class file %s", |
2787 signature_index, CHECK); | |
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|
2788 set_class_generic_signature_index(signature_index); |
0 | 2789 } |
2790 | |
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|
2791 void ClassFileParser::parse_classfile_bootstrap_methods_attribute(u4 attribute_byte_length, TRAPS) { |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
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diff
changeset
|
2792 ClassFileStream* cfs = stream(); |
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diff
changeset
|
2793 u1* current_start = cfs->current(); |
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diff
changeset
|
2794 |
20353
72fa1e83e5f9
8051002: Incorrectly merged share/vm/classfile/classFileParser.cpp was pushed to 8u20.
lfoltan
parents:
18027
diff
changeset
|
2795 guarantee_property(attribute_byte_length >= sizeof(u2), |
17574 | 2796 "Invalid BootstrapMethods attribute length %u in class file %s", |
2797 attribute_byte_length, | |
2798 CHECK); | |
2799 | |
2800 cfs->guarantee_more(attribute_byte_length, CHECK); | |
2801 | |
2011
dad31fc330cd
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diff
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|
2802 int attribute_array_length = cfs->get_u2_fast(); |
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diff
changeset
|
2803 |
dad31fc330cd
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diff
changeset
|
2804 guarantee_property(_max_bootstrap_specifier_index < attribute_array_length, |
dad31fc330cd
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diff
changeset
|
2805 "Short length on BootstrapMethods in class file %s", |
dad31fc330cd
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diff
changeset
|
2806 CHECK); |
dad31fc330cd
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diff
changeset
|
2807 |
dad31fc330cd
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diff
changeset
|
2808 // The attribute contains a counted array of counted tuples of shorts, |
dad31fc330cd
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jrose
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diff
changeset
|
2809 // represending bootstrap specifiers: |
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diff
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|
2810 // length*{bootstrap_method_index, argument_count*{argument_index}} |
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diff
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2811 int operand_count = (attribute_byte_length - sizeof(u2)) / sizeof(u2); |
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diff
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2812 // operand_count = number of shorts in attr, except for leading length |
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diff
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|
2813 |
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diff
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|
2814 // The attribute is copied into a short[] array. |
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diff
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|
2815 // The array begins with a series of short[2] pairs, one for each tuple. |
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diff
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2816 int index_size = (attribute_array_length * 2); |
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diff
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|
2817 |
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2818 Array<u2>* operands = MetadataFactory::new_array<u2>(_loader_data, index_size + operand_count, CHECK); |
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2819 |
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2820 // Eagerly assign operands so they will be deallocated with the constant |
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2821 // pool if there is an error. |
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2822 _cp->set_operands(operands); |
2011
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|
2823 |
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diff
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|
2824 int operand_fill_index = index_size; |
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2825 int cp_size = _cp->length(); |
2011
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diff
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|
2826 |
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diff
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|
2827 for (int n = 0; n < attribute_array_length; n++) { |
dad31fc330cd
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diff
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|
2828 // Store a 32-bit offset into the header of the operand array. |
6725
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|
2829 ConstantPool::operand_offset_at_put(operands, n, operand_fill_index); |
2011
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diff
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|
2830 |
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diff
changeset
|
2831 // Read a bootstrap specifier. |
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diff
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|
2832 cfs->guarantee_more(sizeof(u2) * 2, CHECK); // bsm, argc |
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diff
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|
2833 u2 bootstrap_method_index = cfs->get_u2_fast(); |
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diff
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|
2834 u2 argument_count = cfs->get_u2_fast(); |
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diff
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|
2835 check_property( |
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diff
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|
2836 valid_cp_range(bootstrap_method_index, cp_size) && |
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2837 _cp->tag_at(bootstrap_method_index).is_method_handle(), |
2011
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diff
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|
2838 "bootstrap_method_index %u has bad constant type in class file %s", |
2085 | 2839 bootstrap_method_index, |
2011
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diff
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|
2840 CHECK); |
18056 | 2841 |
2842 guarantee_property((operand_fill_index + 1 + argument_count) < operands->length(), | |
2843 "Invalid BootstrapMethods num_bootstrap_methods or num_bootstrap_arguments value in class file %s", | |
2844 CHECK); | |
2845 | |
6725
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|
2846 operands->at_put(operand_fill_index++, bootstrap_method_index); |
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|
2847 operands->at_put(operand_fill_index++, argument_count); |
2011
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|
2848 |
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diff
changeset
|
2849 cfs->guarantee_more(sizeof(u2) * argument_count, CHECK); // argv[argc] |
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diff
changeset
|
2850 for (int j = 0; j < argument_count; j++) { |
2085 | 2851 u2 argument_index = cfs->get_u2_fast(); |
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diff
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|
2852 check_property( |
2085 | 2853 valid_cp_range(argument_index, cp_size) && |
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|
2854 _cp->tag_at(argument_index).is_loadable_constant(), |
2011
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parents:
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diff
changeset
|
2855 "argument_index %u has bad constant type in class file %s", |
2085 | 2856 argument_index, |
2011
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diff
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|
2857 CHECK); |
6725
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|
2858 operands->at_put(operand_fill_index++, argument_index); |
2011
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diff
changeset
|
2859 } |
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diff
changeset
|
2860 } |
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diff
changeset
|
2861 |
6725
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changeset
|
2862 assert(operand_fill_index == operands->length(), "exact fill"); |
2011
dad31fc330cd
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parents:
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diff
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|
2863 |
dad31fc330cd
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parents:
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diff
changeset
|
2864 u1* current_end = cfs->current(); |
dad31fc330cd
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jrose
parents:
1972
diff
changeset
|
2865 guarantee_property(current_end == current_start + attribute_byte_length, |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
2866 "Bad length on BootstrapMethods in class file %s", |
dad31fc330cd
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jrose
parents:
1972
diff
changeset
|
2867 CHECK); |
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jrose
parents:
1972
diff
changeset
|
2868 } |
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jrose
parents:
1972
diff
changeset
|
2869 |
8719
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|
2870 void ClassFileParser::parse_classfile_attributes(ClassFileParser::ClassAnnotationCollector* parsed_annotations, |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
2871 TRAPS) { |
0 | 2872 ClassFileStream* cfs = stream(); |
2873 // Set inner classes attribute to default sentinel | |
8719
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|
2874 _inner_classes = Universe::the_empty_short_array(); |
0 | 2875 cfs->guarantee_more(2, CHECK); // attributes_count |
2876 u2 attributes_count = cfs->get_u2_fast(); | |
2877 bool parsed_sourcefile_attribute = false; | |
2878 bool parsed_innerclasses_attribute = false; | |
2879 bool parsed_enclosingmethod_attribute = false; | |
2011
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jrose
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diff
changeset
|
2880 bool parsed_bootstrap_methods_attribute = false; |
0 | 2881 u1* runtime_visible_annotations = NULL; |
2882 int runtime_visible_annotations_length = 0; | |
2883 u1* runtime_invisible_annotations = NULL; | |
2884 int runtime_invisible_annotations_length = 0; | |
7457
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|
2885 u1* runtime_visible_type_annotations = NULL; |
35431a769282
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7187
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changeset
|
2886 int runtime_visible_type_annotations_length = 0; |
35431a769282
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stefank
parents:
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|
2887 u1* runtime_invisible_type_annotations = NULL; |
35431a769282
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7187
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|
2888 int runtime_invisible_type_annotations_length = 0; |
12201
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
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12131
diff
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|
2889 bool runtime_invisible_type_annotations_exists = false; |
5967
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
2890 u1* inner_classes_attribute_start = NULL; |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
2891 u4 inner_classes_attribute_length = 0; |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
2892 u2 enclosing_method_class_index = 0; |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
2893 u2 enclosing_method_method_index = 0; |
0 | 2894 // Iterate over attributes |
2895 while (attributes_count--) { | |
2896 cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length | |
2897 u2 attribute_name_index = cfs->get_u2_fast(); | |
2898 u4 attribute_length = cfs->get_u4_fast(); | |
2899 check_property( | |
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diff
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|
2900 valid_symbol_at(attribute_name_index), |
0 | 2901 "Attribute name has bad constant pool index %u in class file %s", |
2902 attribute_name_index, CHECK); | |
8719
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|
2903 Symbol* tag = _cp->symbol_at(attribute_name_index); |
0 | 2904 if (tag == vmSymbols::tag_source_file()) { |
2905 // Check for SourceFile tag | |
2906 if (_need_verify) { | |
2907 guarantee_property(attribute_length == 2, "Wrong SourceFile attribute length in class file %s", CHECK); | |
2908 } | |
2909 if (parsed_sourcefile_attribute) { | |
2910 classfile_parse_error("Multiple SourceFile attributes in class file %s", CHECK); | |
2911 } else { | |
2912 parsed_sourcefile_attribute = true; | |
2913 } | |
8719
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coleenp
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|
2914 parse_classfile_sourcefile_attribute(CHECK); |
0 | 2915 } else if (tag == vmSymbols::tag_source_debug_extension()) { |
2916 // Check for SourceDebugExtension tag | |
8719
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coleenp
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8716
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|
2917 parse_classfile_source_debug_extension_attribute((int)attribute_length, CHECK); |
0 | 2918 } else if (tag == vmSymbols::tag_inner_classes()) { |
2919 // Check for InnerClasses tag | |
2920 if (parsed_innerclasses_attribute) { | |
2921 classfile_parse_error("Multiple InnerClasses attributes in class file %s", CHECK); | |
2922 } else { | |
2923 parsed_innerclasses_attribute = true; | |
2924 } | |
5967
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
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4755
diff
changeset
|
2925 inner_classes_attribute_start = cfs->get_u1_buffer(); |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
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4755
diff
changeset
|
2926 inner_classes_attribute_length = attribute_length; |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
2927 cfs->skip_u1(inner_classes_attribute_length, CHECK); |
0 | 2928 } else if (tag == vmSymbols::tag_synthetic()) { |
2929 // Check for Synthetic tag | |
2930 // Shouldn't we check that the synthetic flags wasn't already set? - not required in spec | |
2931 if (attribute_length != 0) { | |
2932 classfile_parse_error( | |
2933 "Invalid Synthetic classfile attribute length %u in class file %s", | |
2934 attribute_length, CHECK); | |
2935 } | |
8719
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coleenp
parents:
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diff
changeset
|
2936 parse_classfile_synthetic_attribute(CHECK); |
0 | 2937 } else if (tag == vmSymbols::tag_deprecated()) { |
2938 // Check for Deprecatd tag - 4276120 | |
2939 if (attribute_length != 0) { | |
2940 classfile_parse_error( | |
2941 "Invalid Deprecated classfile attribute length %u in class file %s", | |
2942 attribute_length, CHECK); | |
2943 } | |
2944 } else if (_major_version >= JAVA_1_5_VERSION) { | |
2945 if (tag == vmSymbols::tag_signature()) { | |
2946 if (attribute_length != 2) { | |
2947 classfile_parse_error( | |
2948 "Wrong Signature attribute length %u in class file %s", | |
2949 attribute_length, CHECK); | |
2950 } | |
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diff
changeset
|
2951 parse_classfile_signature_attribute(CHECK); |
0 | 2952 } else if (tag == vmSymbols::tag_runtime_visible_annotations()) { |
2953 runtime_visible_annotations_length = attribute_length; | |
2954 runtime_visible_annotations = cfs->get_u1_buffer(); | |
2955 assert(runtime_visible_annotations != NULL, "null visible annotations"); | |
8719
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|
2956 parse_annotations(runtime_visible_annotations, |
6222
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6711908: JVM needs direct access to some annotations
jrose
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diff
changeset
|
2957 runtime_visible_annotations_length, |
6d8f36bcef55
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jrose
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6100
diff
changeset
|
2958 parsed_annotations, |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
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6100
diff
changeset
|
2959 CHECK); |
0 | 2960 cfs->skip_u1(runtime_visible_annotations_length, CHECK); |
2961 } else if (PreserveAllAnnotations && tag == vmSymbols::tag_runtime_invisible_annotations()) { | |
2962 runtime_invisible_annotations_length = attribute_length; | |
2963 runtime_invisible_annotations = cfs->get_u1_buffer(); | |
2964 assert(runtime_invisible_annotations != NULL, "null invisible annotations"); | |
2965 cfs->skip_u1(runtime_invisible_annotations_length, CHECK); | |
2966 } else if (tag == vmSymbols::tag_enclosing_method()) { | |
2967 if (parsed_enclosingmethod_attribute) { | |
2968 classfile_parse_error("Multiple EnclosingMethod attributes in class file %s", CHECK); | |
2969 } else { | |
2970 parsed_enclosingmethod_attribute = true; | |
2971 } | |
2972 cfs->guarantee_more(4, CHECK); // class_index, method_index | |
5967
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
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4755
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changeset
|
2973 enclosing_method_class_index = cfs->get_u2_fast(); |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
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diff
changeset
|
2974 enclosing_method_method_index = cfs->get_u2_fast(); |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
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4755
diff
changeset
|
2975 if (enclosing_method_class_index == 0) { |
0 | 2976 classfile_parse_error("Invalid class index in EnclosingMethod attribute in class file %s", CHECK); |
2977 } | |
2978 // Validate the constant pool indices and types | |
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|
2979 check_property(valid_klass_reference_at(enclosing_method_class_index), |
c8b31b461e1a
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changeset
|
2980 "Invalid or out-of-bounds class index in EnclosingMethod attribute in class file %s", CHECK); |
5967
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7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
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diff
changeset
|
2981 if (enclosing_method_method_index != 0 && |
8719
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changeset
|
2982 (!_cp->is_within_bounds(enclosing_method_method_index) || |
c8b31b461e1a
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coleenp
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diff
changeset
|
2983 !_cp->tag_at(enclosing_method_method_index).is_name_and_type())) { |
0 | 2984 classfile_parse_error("Invalid or out-of-bounds method index in EnclosingMethod attribute in class file %s", CHECK); |
2985 } | |
2011
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jrose
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diff
changeset
|
2986 } else if (tag == vmSymbols::tag_bootstrap_methods() && |
dad31fc330cd
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parents:
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diff
changeset
|
2987 _major_version >= Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
2988 if (parsed_bootstrap_methods_attribute) |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
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diff
changeset
|
2989 classfile_parse_error("Multiple BootstrapMethods attributes in class file %s", CHECK); |
dad31fc330cd
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jrose
parents:
1972
diff
changeset
|
2990 parsed_bootstrap_methods_attribute = true; |
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8716
diff
changeset
|
2991 parse_classfile_bootstrap_methods_attribute(attribute_length, CHECK); |
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|
2992 } else if (tag == vmSymbols::tag_runtime_visible_type_annotations()) { |
12201
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2993 if (runtime_visible_type_annotations != NULL) { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2994 classfile_parse_error( |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2995 "Multiple RuntimeVisibleTypeAnnotations attributes in class file %s", CHECK); |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
2996 } |
7457
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
2997 runtime_visible_type_annotations_length = attribute_length; |
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
2998 runtime_visible_type_annotations = cfs->get_u1_buffer(); |
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
2999 assert(runtime_visible_type_annotations != NULL, "null visible type annotations"); |
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
3000 // No need for the VM to parse Type annotations |
35431a769282
8004823: Add VM support for type annotation reflection
stefank
parents:
7187
diff
changeset
|
3001 cfs->skip_u1(runtime_visible_type_annotations_length, CHECK); |
12201
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3002 } else if (tag == vmSymbols::tag_runtime_invisible_type_annotations()) { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3003 if (runtime_invisible_type_annotations_exists) { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3004 classfile_parse_error( |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3005 "Multiple RuntimeInvisibleTypeAnnotations attributes in class file %s", CHECK); |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3006 } else { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3007 runtime_invisible_type_annotations_exists = true; |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3008 } |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3009 if (PreserveAllAnnotations) { |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3010 runtime_invisible_type_annotations_length = attribute_length; |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3011 runtime_invisible_type_annotations = cfs->get_u1_buffer(); |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3012 assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations"); |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3013 } |
b6767a18b379
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
12131
diff
changeset
|
3014 cfs->skip_u1(attribute_length, CHECK); |
0 | 3015 } else { |
3016 // Unknown attribute | |
3017 cfs->skip_u1(attribute_length, CHECK); | |
3018 } | |
3019 } else { | |
3020 // Unknown attribute | |
3021 cfs->skip_u1(attribute_length, CHECK); | |
3022 } | |
3023 } | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3024 _annotations = assemble_annotations(runtime_visible_annotations, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3025 runtime_visible_annotations_length, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3026 runtime_invisible_annotations, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3027 runtime_invisible_annotations_length, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3028 CHECK); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3029 _type_annotations = assemble_annotations(runtime_visible_type_annotations, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3030 runtime_visible_type_annotations_length, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3031 runtime_invisible_type_annotations, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3032 runtime_invisible_type_annotations_length, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3033 CHECK); |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
3034 |
5967
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3035 if (parsed_innerclasses_attribute || parsed_enclosingmethod_attribute) { |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3036 u2 num_of_classes = parse_classfile_inner_classes_attribute( |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3037 inner_classes_attribute_start, |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3038 parsed_innerclasses_attribute, |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3039 enclosing_method_class_index, |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3040 enclosing_method_method_index, |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3041 CHECK); |
5967
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3042 if (parsed_innerclasses_attribute &&_need_verify && _major_version >= JAVA_1_5_VERSION) { |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3043 guarantee_property( |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3044 inner_classes_attribute_length == sizeof(num_of_classes) + 4 * sizeof(u2) * num_of_classes, |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3045 "Wrong InnerClasses attribute length in class file %s", CHECK); |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3046 } |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3047 } |
f7c4174b33ba
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
4755
diff
changeset
|
3048 |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
3049 if (_max_bootstrap_specifier_index >= 0) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
3050 guarantee_property(parsed_bootstrap_methods_attribute, |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
3051 "Missing BootstrapMethods attribute in class file %s", CHECK); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
3052 } |
0 | 3053 } |
3054 | |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3055 void ClassFileParser::apply_parsed_class_attributes(instanceKlassHandle k) { |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3056 if (_synthetic_flag) |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3057 k->set_is_synthetic(); |
12067
e22ee8e7ae62
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
11148
diff
changeset
|
3058 if (_sourcefile_index != 0) { |
e22ee8e7ae62
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
11148
diff
changeset
|
3059 k->set_source_file_name_index(_sourcefile_index); |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3060 } |
12067
e22ee8e7ae62
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
11148
diff
changeset
|
3061 if (_generic_signature_index != 0) { |
e22ee8e7ae62
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
11148
diff
changeset
|
3062 k->set_generic_signature_index(_generic_signature_index); |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3063 } |
6226 | 3064 if (_sde_buffer != NULL) { |
3065 k->set_source_debug_extension(_sde_buffer, _sde_length); | |
3066 } | |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3067 } |
0 | 3068 |
20703
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3069 // Create the Annotations object that will |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3070 // hold the annotations array for the Klass. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3071 void ClassFileParser::create_combined_annotations(TRAPS) { |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3072 if (_annotations == NULL && |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3073 _type_annotations == NULL && |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3074 _fields_annotations == NULL && |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3075 _fields_type_annotations == NULL) { |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3076 // Don't create the Annotations object unnecessarily. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3077 return; |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3078 } |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3079 |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3080 Annotations* annotations = Annotations::allocate(_loader_data, CHECK); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3081 annotations->set_class_annotations(_annotations); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3082 annotations->set_class_type_annotations(_type_annotations); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3083 annotations->set_fields_annotations(_fields_annotations); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3084 annotations->set_fields_type_annotations(_fields_type_annotations); |
20703
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3085 |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3086 // This is the Annotations object that will be |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3087 // assigned to InstanceKlass being constructed. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3088 _combined_annotations = annotations; |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3089 |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3090 // The annotations arrays below has been transfered the |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3091 // _combined_annotations so these fields can now be cleared. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3092 _annotations = NULL; |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3093 _type_annotations = NULL; |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3094 _fields_annotations = NULL; |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3095 _fields_type_annotations = NULL; |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3096 } |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3097 |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3098 // Transfer ownership of metadata allocated to the InstanceKlass. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3099 void ClassFileParser::apply_parsed_class_metadata( |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3100 instanceKlassHandle this_klass, |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3101 int java_fields_count, TRAPS) { |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3102 _cp->set_pool_holder(this_klass()); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3103 this_klass->set_constants(_cp); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3104 this_klass->set_fields(_fields, java_fields_count); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3105 this_klass->set_methods(_methods); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3106 this_klass->set_inner_classes(_inner_classes); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3107 this_klass->set_local_interfaces(_local_interfaces); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3108 this_klass->set_transitive_interfaces(_transitive_interfaces); |
20703
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3109 this_klass->set_annotations(_combined_annotations); |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3110 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3111 // Clear out these fields so they don't get deallocated by the destructor |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3112 clear_class_metadata(); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3113 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3114 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3115 AnnotationArray* ClassFileParser::assemble_annotations(u1* runtime_visible_annotations, |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
3116 int runtime_visible_annotations_length, |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
3117 u1* runtime_invisible_annotations, |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
3118 int runtime_invisible_annotations_length, TRAPS) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
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|
3119 AnnotationArray* annotations = NULL; |
0 | 3120 if (runtime_visible_annotations != NULL || |
3121 runtime_invisible_annotations != NULL) { | |
8719
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3122 annotations = MetadataFactory::new_array<u1>(_loader_data, |
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3123 runtime_visible_annotations_length + |
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3124 runtime_invisible_annotations_length, |
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3125 CHECK_(annotations)); |
0 | 3126 if (runtime_visible_annotations != NULL) { |
6725
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3127 for (int i = 0; i < runtime_visible_annotations_length; i++) { |
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3128 annotations->at_put(i, runtime_visible_annotations[i]); |
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3129 } |
0 | 3130 } |
3131 if (runtime_invisible_annotations != NULL) { | |
6725
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3132 for (int i = 0; i < runtime_invisible_annotations_length; i++) { |
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3133 int append = runtime_visible_annotations_length+i; |
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3134 annotations->at_put(append, runtime_invisible_annotations[i]); |
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3135 } |
0 | 3136 } |
3137 } | |
3138 return annotations; | |
3139 } | |
3140 | |
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3141 instanceKlassHandle ClassFileParser::parse_super_class(int super_class_index, |
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3142 TRAPS) { |
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3143 instanceKlassHandle super_klass; |
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3144 if (super_class_index == 0) { |
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3145 check_property(_class_name == vmSymbols::java_lang_Object(), |
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3146 "Invalid superclass index %u in class file %s", |
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|
3147 super_class_index, |
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|
3148 CHECK_NULL); |
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3149 } else { |
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3150 check_property(valid_klass_reference_at(super_class_index), |
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3151 "Invalid superclass index %u in class file %s", |
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|
3152 super_class_index, |
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3153 CHECK_NULL); |
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3154 // The class name should be legal because it is checked when parsing constant pool. |
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3155 // However, make sure it is not an array type. |
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3156 bool is_array = false; |
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3157 if (_cp->tag_at(super_class_index).is_klass()) { |
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3158 super_klass = instanceKlassHandle(THREAD, _cp->resolved_klass_at(super_class_index)); |
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3159 if (_need_verify) |
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|
3160 is_array = super_klass->oop_is_array(); |
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3161 } else if (_need_verify) { |
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3162 is_array = (_cp->unresolved_klass_at(super_class_index)->byte_at(0) == JVM_SIGNATURE_ARRAY); |
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3163 } |
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|
3164 if (_need_verify) { |
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3165 guarantee_property(!is_array, |
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3166 "Bad superclass name in class file %s", CHECK_NULL); |
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|
3167 } |
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|
3168 } |
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|
3169 return super_klass; |
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|
3170 } |
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|
3171 |
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|
3172 |
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|
3173 // Values needed for oopmap and InstanceKlass creation |
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3174 class FieldLayoutInfo : public StackObj { |
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|
3175 public: |
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|
3176 int* nonstatic_oop_offsets; |
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|
3177 unsigned int* nonstatic_oop_counts; |
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3178 unsigned int nonstatic_oop_map_count; |
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3179 unsigned int total_oop_map_count; |
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3180 int instance_size; |
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|
3181 int nonstatic_field_size; |
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3182 int static_field_size; |
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3183 bool has_nonstatic_fields; |
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|
3184 }; |
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|
3185 |
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3186 // Layout fields and fill in FieldLayoutInfo. Could use more refactoring! |
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3187 void ClassFileParser::layout_fields(Handle class_loader, |
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3188 FieldAllocationCount* fac, |
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3189 ClassAnnotationCollector* parsed_annotations, |
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|
3190 FieldLayoutInfo* info, |
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|
3191 TRAPS) { |
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|
3192 |
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|
3193 // Field size and offset computation |
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|
3194 int nonstatic_field_size = _super_klass() == NULL ? 0 : _super_klass()->nonstatic_field_size(); |
23822
626f594dffa6
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|
3195 int next_static_oop_offset = 0; |
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|
3196 int next_static_double_offset = 0; |
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|
3197 int next_static_word_offset = 0; |
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|
3198 int next_static_short_offset = 0; |
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|
3199 int next_static_byte_offset = 0; |
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|
3200 int next_nonstatic_oop_offset = 0; |
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|
3201 int next_nonstatic_double_offset = 0; |
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|
3202 int next_nonstatic_word_offset = 0; |
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|
3203 int next_nonstatic_short_offset = 0; |
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|
3204 int next_nonstatic_byte_offset = 0; |
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|
3205 int first_nonstatic_oop_offset = 0; |
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|
3206 int next_nonstatic_field_offset = 0; |
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|
3207 int next_nonstatic_padded_offset = 0; |
8719
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3208 |
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|
3209 // Count the contended fields by type. |
10314 | 3210 // |
3211 // We ignore static fields, because @Contended is not supported for them. | |
3212 // The layout code below will also ignore the static fields. | |
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3213 int nonstatic_contended_count = 0; |
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3214 FieldAllocationCount fac_contended; |
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3215 for (AllFieldStream fs(_fields, _cp); !fs.done(); fs.next()) { |
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3216 FieldAllocationType atype = (FieldAllocationType) fs.allocation_type(); |
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3217 if (fs.is_contended()) { |
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|
3218 fac_contended.count[atype]++; |
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3219 if (!fs.access_flags().is_static()) { |
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|
3220 nonstatic_contended_count++; |
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|
3221 } |
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|
3222 } |
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|
3223 } |
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|
3224 |
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|
3225 |
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|
3226 // Calculate the starting byte offsets |
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|
3227 next_static_oop_offset = InstanceMirrorKlass::offset_of_static_fields(); |
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3228 next_static_double_offset = next_static_oop_offset + |
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|
3229 ((fac->count[STATIC_OOP]) * heapOopSize); |
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3230 if ( fac->count[STATIC_DOUBLE] && |
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|
3231 (Universe::field_type_should_be_aligned(T_DOUBLE) || |
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3232 Universe::field_type_should_be_aligned(T_LONG)) ) { |
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|
3233 next_static_double_offset = align_size_up(next_static_double_offset, BytesPerLong); |
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|
3234 } |
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|
3235 |
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3236 next_static_word_offset = next_static_double_offset + |
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|
3237 ((fac->count[STATIC_DOUBLE]) * BytesPerLong); |
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3238 next_static_short_offset = next_static_word_offset + |
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|
3239 ((fac->count[STATIC_WORD]) * BytesPerInt); |
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3240 next_static_byte_offset = next_static_short_offset + |
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|
3241 ((fac->count[STATIC_SHORT]) * BytesPerShort); |
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|
3242 |
10314 | 3243 int nonstatic_fields_start = instanceOopDesc::base_offset_in_bytes() + |
3244 nonstatic_field_size * heapOopSize; | |
3245 | |
3246 next_nonstatic_field_offset = nonstatic_fields_start; | |
3247 | |
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3970971c91e0
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|
3248 bool is_contended_class = parsed_annotations->is_contended(); |
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|
3249 |
10314 | 3250 // Class is contended, pad before all the fields |
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3970971c91e0
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|
3251 if (is_contended_class) { |
10314 | 3252 next_nonstatic_field_offset += ContendedPaddingWidth; |
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3253 } |
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3254 |
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3255 // Compute the non-contended fields count. |
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3256 // The packing code below relies on these counts to determine if some field |
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3257 // can be squeezed into the alignment gap. Contended fields are obviously |
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3258 // exempt from that. |
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3259 unsigned int nonstatic_double_count = fac->count[NONSTATIC_DOUBLE] - fac_contended.count[NONSTATIC_DOUBLE]; |
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3260 unsigned int nonstatic_word_count = fac->count[NONSTATIC_WORD] - fac_contended.count[NONSTATIC_WORD]; |
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3261 unsigned int nonstatic_short_count = fac->count[NONSTATIC_SHORT] - fac_contended.count[NONSTATIC_SHORT]; |
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3262 unsigned int nonstatic_byte_count = fac->count[NONSTATIC_BYTE] - fac_contended.count[NONSTATIC_BYTE]; |
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3263 unsigned int nonstatic_oop_count = fac->count[NONSTATIC_OOP] - fac_contended.count[NONSTATIC_OOP]; |
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3264 |
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3265 // Total non-static fields count, including every contended field |
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3266 unsigned int nonstatic_fields_count = fac->count[NONSTATIC_DOUBLE] + fac->count[NONSTATIC_WORD] + |
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3267 fac->count[NONSTATIC_SHORT] + fac->count[NONSTATIC_BYTE] + |
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3268 fac->count[NONSTATIC_OOP]; |
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3269 |
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3270 bool super_has_nonstatic_fields = |
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3271 (_super_klass() != NULL && _super_klass->has_nonstatic_fields()); |
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3272 bool has_nonstatic_fields = super_has_nonstatic_fields || (nonstatic_fields_count != 0); |
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3273 |
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3274 |
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3275 // Prepare list of oops for oop map generation. |
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3276 // |
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3277 // "offset" and "count" lists are describing the set of contiguous oop |
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3278 // regions. offset[i] is the start of the i-th region, which then has |
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3279 // count[i] oops following. Before we know how many regions are required, |
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3280 // we pessimistically allocate the maps to fit all the oops into the |
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3281 // distinct regions. |
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3282 // |
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3283 // TODO: We add +1 to always allocate non-zero resource arrays; we need |
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3284 // to figure out if we still need to do this. |
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3285 int* nonstatic_oop_offsets; |
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3286 unsigned int* nonstatic_oop_counts; |
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3287 unsigned int nonstatic_oop_map_count = 0; |
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3288 unsigned int max_nonstatic_oop_maps = fac->count[NONSTATIC_OOP] + 1; |
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3289 |
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3290 nonstatic_oop_offsets = NEW_RESOURCE_ARRAY_IN_THREAD( |
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3291 THREAD, int, max_nonstatic_oop_maps); |
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3292 nonstatic_oop_counts = NEW_RESOURCE_ARRAY_IN_THREAD( |
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3293 THREAD, unsigned int, max_nonstatic_oop_maps); |
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3294 |
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3295 first_nonstatic_oop_offset = 0; // will be set for first oop field |
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3296 |
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3297 bool compact_fields = CompactFields; |
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3298 int allocation_style = FieldsAllocationStyle; |
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3299 if( allocation_style < 0 || allocation_style > 2 ) { // Out of range? |
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3300 assert(false, "0 <= FieldsAllocationStyle <= 2"); |
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3301 allocation_style = 1; // Optimistic |
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3302 } |
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3303 |
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3304 // The next classes have predefined hard-coded fields offsets |
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3305 // (see in JavaClasses::compute_hard_coded_offsets()). |
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3306 // Use default fields allocation order for them. |
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3307 if( (allocation_style != 0 || compact_fields ) && class_loader.is_null() && |
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3308 (_class_name == vmSymbols::java_lang_AssertionStatusDirectives() || |
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3309 _class_name == vmSymbols::java_lang_Class() || |
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3310 _class_name == vmSymbols::java_lang_ClassLoader() || |
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3311 _class_name == vmSymbols::java_lang_ref_Reference() || |
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3312 _class_name == vmSymbols::java_lang_ref_SoftReference() || |
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3313 _class_name == vmSymbols::java_lang_StackTraceElement() || |
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3314 _class_name == vmSymbols::java_lang_String() || |
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3315 _class_name == vmSymbols::java_lang_Throwable() || |
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3316 _class_name == vmSymbols::java_lang_Boolean() || |
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3317 _class_name == vmSymbols::java_lang_Character() || |
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3318 _class_name == vmSymbols::java_lang_Float() || |
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3319 _class_name == vmSymbols::java_lang_Double() || |
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3320 _class_name == vmSymbols::java_lang_Byte() || |
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3321 _class_name == vmSymbols::java_lang_Short() || |
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3322 _class_name == vmSymbols::java_lang_Integer() || |
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3323 _class_name == vmSymbols::java_lang_Long())) { |
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3324 allocation_style = 0; // Allocate oops first |
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3325 compact_fields = false; // Don't compact fields |
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3326 } |
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3327 |
10314 | 3328 // Rearrange fields for a given allocation style |
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3329 if( allocation_style == 0 ) { |
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3330 // Fields order: oops, longs/doubles, ints, shorts/chars, bytes, padded fields |
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3331 next_nonstatic_oop_offset = next_nonstatic_field_offset; |
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3332 next_nonstatic_double_offset = next_nonstatic_oop_offset + |
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3333 (nonstatic_oop_count * heapOopSize); |
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3334 } else if( allocation_style == 1 ) { |
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3335 // Fields order: longs/doubles, ints, shorts/chars, bytes, oops, padded fields |
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3336 next_nonstatic_double_offset = next_nonstatic_field_offset; |
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3337 } else if( allocation_style == 2 ) { |
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3338 // Fields allocation: oops fields in super and sub classes are together. |
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3339 if( nonstatic_field_size > 0 && _super_klass() != NULL && |
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3340 _super_klass->nonstatic_oop_map_size() > 0 ) { |
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3341 unsigned int map_count = _super_klass->nonstatic_oop_map_count(); |
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3342 OopMapBlock* first_map = _super_klass->start_of_nonstatic_oop_maps(); |
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3343 OopMapBlock* last_map = first_map + map_count - 1; |
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3344 int next_offset = last_map->offset() + (last_map->count() * heapOopSize); |
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3345 if (next_offset == next_nonstatic_field_offset) { |
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3346 allocation_style = 0; // allocate oops first |
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3347 next_nonstatic_oop_offset = next_nonstatic_field_offset; |
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3348 next_nonstatic_double_offset = next_nonstatic_oop_offset + |
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3349 (nonstatic_oop_count * heapOopSize); |
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3350 } |
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3351 } |
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3352 if( allocation_style == 2 ) { |
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3353 allocation_style = 1; // allocate oops last |
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3354 next_nonstatic_double_offset = next_nonstatic_field_offset; |
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3355 } |
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3356 } else { |
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|
3357 ShouldNotReachHere(); |
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|
3358 } |
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3359 |
23822
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|
3360 int nonstatic_oop_space_count = 0; |
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3361 int nonstatic_word_space_count = 0; |
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|
3362 int nonstatic_short_space_count = 0; |
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3363 int nonstatic_byte_space_count = 0; |
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|
3364 int nonstatic_oop_space_offset = 0; |
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|
3365 int nonstatic_word_space_offset = 0; |
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|
3366 int nonstatic_short_space_offset = 0; |
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|
3367 int nonstatic_byte_space_offset = 0; |
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3368 |
10314 | 3369 // Try to squeeze some of the fields into the gaps due to |
3370 // long/double alignment. | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3371 if( nonstatic_double_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3372 int offset = next_nonstatic_double_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3373 next_nonstatic_double_offset = align_size_up(offset, BytesPerLong); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3374 if( compact_fields && offset != next_nonstatic_double_offset ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3375 // Allocate available fields into the gap before double field. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3376 int length = next_nonstatic_double_offset - offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3377 assert(length == BytesPerInt, ""); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3378 nonstatic_word_space_offset = offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3379 if( nonstatic_word_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3380 nonstatic_word_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3381 nonstatic_word_space_count = 1; // Only one will fit |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3382 length -= BytesPerInt; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3383 offset += BytesPerInt; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3384 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3385 nonstatic_short_space_offset = offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3386 while( length >= BytesPerShort && nonstatic_short_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3387 nonstatic_short_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3388 nonstatic_short_space_count += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3389 length -= BytesPerShort; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3390 offset += BytesPerShort; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3391 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3392 nonstatic_byte_space_offset = offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3393 while( length > 0 && nonstatic_byte_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3394 nonstatic_byte_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3395 nonstatic_byte_space_count += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3396 length -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3397 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3398 // Allocate oop field in the gap if there are no other fields for that. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3399 nonstatic_oop_space_offset = offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3400 if( length >= heapOopSize && nonstatic_oop_count > 0 && |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3401 allocation_style != 0 ) { // when oop fields not first |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3402 nonstatic_oop_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3403 nonstatic_oop_space_count = 1; // Only one will fit |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3404 length -= heapOopSize; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3405 offset += heapOopSize; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3406 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3407 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3408 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3409 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3410 next_nonstatic_word_offset = next_nonstatic_double_offset + |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3411 (nonstatic_double_count * BytesPerLong); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3412 next_nonstatic_short_offset = next_nonstatic_word_offset + |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3413 (nonstatic_word_count * BytesPerInt); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3414 next_nonstatic_byte_offset = next_nonstatic_short_offset + |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3415 (nonstatic_short_count * BytesPerShort); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3416 next_nonstatic_padded_offset = next_nonstatic_byte_offset + |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3417 nonstatic_byte_count; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3418 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3419 // let oops jump before padding with this allocation style |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3420 if( allocation_style == 1 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3421 next_nonstatic_oop_offset = next_nonstatic_padded_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3422 if( nonstatic_oop_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3423 next_nonstatic_oop_offset = align_size_up(next_nonstatic_oop_offset, heapOopSize); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3424 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3425 next_nonstatic_padded_offset = next_nonstatic_oop_offset + (nonstatic_oop_count * heapOopSize); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3426 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3427 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3428 // Iterate over fields again and compute correct offsets. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3429 // The field allocation type was temporarily stored in the offset slot. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3430 // oop fields are located before non-oop fields (static and non-static). |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3431 for (AllFieldStream fs(_fields, _cp); !fs.done(); fs.next()) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3432 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3433 // skip already laid out fields |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3434 if (fs.is_offset_set()) continue; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3435 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3436 // contended instance fields are handled below |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3437 if (fs.is_contended() && !fs.access_flags().is_static()) continue; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3438 |
23822
626f594dffa6
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
csahu
parents:
23182
diff
changeset
|
3439 int real_offset = 0; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3440 FieldAllocationType atype = (FieldAllocationType) fs.allocation_type(); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3441 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3442 // pack the rest of the fields |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3443 switch (atype) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3444 case STATIC_OOP: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3445 real_offset = next_static_oop_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3446 next_static_oop_offset += heapOopSize; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3447 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3448 case STATIC_BYTE: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3449 real_offset = next_static_byte_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3450 next_static_byte_offset += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3451 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3452 case STATIC_SHORT: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3453 real_offset = next_static_short_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3454 next_static_short_offset += BytesPerShort; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3455 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3456 case STATIC_WORD: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3457 real_offset = next_static_word_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3458 next_static_word_offset += BytesPerInt; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3459 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3460 case STATIC_DOUBLE: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3461 real_offset = next_static_double_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3462 next_static_double_offset += BytesPerLong; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3463 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3464 case NONSTATIC_OOP: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3465 if( nonstatic_oop_space_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3466 real_offset = nonstatic_oop_space_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3467 nonstatic_oop_space_offset += heapOopSize; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3468 nonstatic_oop_space_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3469 } else { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3470 real_offset = next_nonstatic_oop_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3471 next_nonstatic_oop_offset += heapOopSize; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3472 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3473 // Update oop maps |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3474 if( nonstatic_oop_map_count > 0 && |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3475 nonstatic_oop_offsets[nonstatic_oop_map_count - 1] == |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3476 real_offset - |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3477 int(nonstatic_oop_counts[nonstatic_oop_map_count - 1]) * |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3478 heapOopSize ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3479 // Extend current oop map |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3480 assert(nonstatic_oop_map_count - 1 < max_nonstatic_oop_maps, "range check"); |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3481 nonstatic_oop_counts[nonstatic_oop_map_count - 1] += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3482 } else { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3483 // Create new oop map |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3484 assert(nonstatic_oop_map_count < max_nonstatic_oop_maps, "range check"); |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3485 nonstatic_oop_offsets[nonstatic_oop_map_count] = real_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3486 nonstatic_oop_counts [nonstatic_oop_map_count] = 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3487 nonstatic_oop_map_count += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3488 if( first_nonstatic_oop_offset == 0 ) { // Undefined |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3489 first_nonstatic_oop_offset = real_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3490 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3491 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3492 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3493 case NONSTATIC_BYTE: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3494 if( nonstatic_byte_space_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3495 real_offset = nonstatic_byte_space_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3496 nonstatic_byte_space_offset += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3497 nonstatic_byte_space_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3498 } else { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3499 real_offset = next_nonstatic_byte_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3500 next_nonstatic_byte_offset += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3501 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3502 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3503 case NONSTATIC_SHORT: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3504 if( nonstatic_short_space_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3505 real_offset = nonstatic_short_space_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3506 nonstatic_short_space_offset += BytesPerShort; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3507 nonstatic_short_space_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3508 } else { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3509 real_offset = next_nonstatic_short_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3510 next_nonstatic_short_offset += BytesPerShort; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3511 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3512 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3513 case NONSTATIC_WORD: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3514 if( nonstatic_word_space_count > 0 ) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3515 real_offset = nonstatic_word_space_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3516 nonstatic_word_space_offset += BytesPerInt; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3517 nonstatic_word_space_count -= 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3518 } else { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3519 real_offset = next_nonstatic_word_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3520 next_nonstatic_word_offset += BytesPerInt; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3521 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3522 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3523 case NONSTATIC_DOUBLE: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3524 real_offset = next_nonstatic_double_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3525 next_nonstatic_double_offset += BytesPerLong; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3526 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3527 default: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3528 ShouldNotReachHere(); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3529 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3530 fs.set_offset(real_offset); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3531 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3532 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3533 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3534 // Handle the contended cases. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3535 // |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3536 // Each contended field should not intersect the cache line with another contended field. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3537 // In the absence of alignment information, we end up with pessimistically separating |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3538 // the fields with full-width padding. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3539 // |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3540 // Additionally, this should not break alignment for the fields, so we round the alignment up |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3541 // for each field. |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3542 if (nonstatic_contended_count > 0) { |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3543 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3544 // if there is at least one contended field, we need to have pre-padding for them |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3545 next_nonstatic_padded_offset += ContendedPaddingWidth; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3546 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3547 // collect all contended groups |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3548 BitMap bm(_cp->size()); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3549 for (AllFieldStream fs(_fields, _cp); !fs.done(); fs.next()) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3550 // skip already laid out fields |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3551 if (fs.is_offset_set()) continue; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3552 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3553 if (fs.is_contended()) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3554 bm.set_bit(fs.contended_group()); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3555 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3556 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3557 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3558 int current_group = -1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3559 while ((current_group = (int)bm.get_next_one_offset(current_group + 1)) != (int)bm.size()) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3560 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3561 for (AllFieldStream fs(_fields, _cp); !fs.done(); fs.next()) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3562 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3563 // skip already laid out fields |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3564 if (fs.is_offset_set()) continue; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3565 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3566 // skip non-contended fields and fields from different group |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3567 if (!fs.is_contended() || (fs.contended_group() != current_group)) continue; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3568 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3569 // handle statics below |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3570 if (fs.access_flags().is_static()) continue; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3571 |
23822
626f594dffa6
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
csahu
parents:
23182
diff
changeset
|
3572 int real_offset = 0; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3573 FieldAllocationType atype = (FieldAllocationType) fs.allocation_type(); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3574 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3575 switch (atype) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3576 case NONSTATIC_BYTE: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3577 next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, 1); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3578 real_offset = next_nonstatic_padded_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3579 next_nonstatic_padded_offset += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3580 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3581 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3582 case NONSTATIC_SHORT: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3583 next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerShort); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3584 real_offset = next_nonstatic_padded_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3585 next_nonstatic_padded_offset += BytesPerShort; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3586 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3587 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3588 case NONSTATIC_WORD: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3589 next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerInt); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3590 real_offset = next_nonstatic_padded_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3591 next_nonstatic_padded_offset += BytesPerInt; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3592 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3593 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3594 case NONSTATIC_DOUBLE: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3595 next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerLong); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3596 real_offset = next_nonstatic_padded_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3597 next_nonstatic_padded_offset += BytesPerLong; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3598 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3599 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3600 case NONSTATIC_OOP: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3601 next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, heapOopSize); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3602 real_offset = next_nonstatic_padded_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3603 next_nonstatic_padded_offset += heapOopSize; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3604 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3605 // Create new oop map |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3606 assert(nonstatic_oop_map_count < max_nonstatic_oop_maps, "range check"); |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3607 nonstatic_oop_offsets[nonstatic_oop_map_count] = real_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3608 nonstatic_oop_counts [nonstatic_oop_map_count] = 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3609 nonstatic_oop_map_count += 1; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3610 if( first_nonstatic_oop_offset == 0 ) { // Undefined |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3611 first_nonstatic_oop_offset = real_offset; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3612 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3613 break; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3614 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3615 default: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3616 ShouldNotReachHere(); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3617 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3618 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3619 if (fs.contended_group() == 0) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3620 // Contended group defines the equivalence class over the fields: |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3621 // the fields within the same contended group are not inter-padded. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3622 // The only exception is default group, which does not incur the |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3623 // equivalence, and so requires intra-padding. |
10314 | 3624 next_nonstatic_padded_offset += ContendedPaddingWidth; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3625 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3626 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3627 fs.set_offset(real_offset); |
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8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3628 } // for |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3629 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3630 // Start laying out the next group. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3631 // Note that this will effectively pad the last group in the back; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3632 // this is expected to alleviate memory contention effects for |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3633 // subclass fields and/or adjacent object. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3634 // If this was the default group, the padding is already in place. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3635 if (current_group != 0) { |
10314 | 3636 next_nonstatic_padded_offset += ContendedPaddingWidth; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3637 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3638 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3639 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3640 // handle static fields |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3641 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3642 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3643 // Entire class is contended, pad in the back. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3644 // This helps to alleviate memory contention effects for subclass fields |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3645 // and/or adjacent object. |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3646 if (is_contended_class) { |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3647 next_nonstatic_padded_offset += ContendedPaddingWidth; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3648 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3649 |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3650 int notaligned_nonstatic_fields_end = next_nonstatic_padded_offset; |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3651 |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3652 int nonstatic_fields_end = align_size_up(notaligned_nonstatic_fields_end, heapOopSize); |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3653 int instance_end = align_size_up(notaligned_nonstatic_fields_end, wordSize); |
10314 | 3654 int static_fields_end = align_size_up(next_static_byte_offset, wordSize); |
3655 | |
3656 int static_field_size = (static_fields_end - | |
3657 InstanceMirrorKlass::offset_of_static_fields()) / wordSize; | |
3658 nonstatic_field_size = nonstatic_field_size + | |
3659 (nonstatic_fields_end - nonstatic_fields_start) / heapOopSize; | |
3660 | |
3661 int instance_size = align_object_size(instance_end / wordSize); | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3662 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3663 assert(instance_size == align_object_size(align_size_up( |
10303
205dd30230e1
8012939: @Contended doesn't work correctly with inheritance
shade
parents:
10269
diff
changeset
|
3664 (instanceOopDesc::base_offset_in_bytes() + nonstatic_field_size*heapOopSize), |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3665 wordSize) / wordSize), "consistent layout helper value"); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3666 |
10348
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3667 // Invariant: nonstatic_field end/start should only change if there are |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3668 // nonstatic fields in the class, or if the class is contended. We compare |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3669 // against the non-aligned value, so that end alignment will not fail the |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3670 // assert without actually having the fields. |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3671 assert((notaligned_nonstatic_fields_end == nonstatic_fields_start) || |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3672 is_contended_class || |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3673 (nonstatic_fields_count > 0), "double-check nonstatic start/end"); |
3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
10343
diff
changeset
|
3674 |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3675 // Number of non-static oop map blocks allocated at end of klass. |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3676 const unsigned int total_oop_map_count = |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3677 compute_oop_map_count(_super_klass, nonstatic_oop_map_count, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3678 first_nonstatic_oop_offset); |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3679 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3680 #ifndef PRODUCT |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3681 if (PrintFieldLayout) { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3682 print_field_layout(_class_name, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3683 _fields, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3684 _cp, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3685 instance_size, |
10314 | 3686 nonstatic_fields_start, |
3687 nonstatic_fields_end, | |
3688 static_fields_end); | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3689 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3690 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3691 #endif |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3692 // Pass back information needed for InstanceKlass creation |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3693 info->nonstatic_oop_offsets = nonstatic_oop_offsets; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3694 info->nonstatic_oop_counts = nonstatic_oop_counts; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3695 info->nonstatic_oop_map_count = nonstatic_oop_map_count; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3696 info->total_oop_map_count = total_oop_map_count; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3697 info->instance_size = instance_size; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3698 info->static_field_size = static_field_size; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3699 info->nonstatic_field_size = nonstatic_field_size; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3700 info->has_nonstatic_fields = has_nonstatic_fields; |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3701 } |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3702 |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3703 |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3704 instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name, |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
6983
diff
changeset
|
3705 ClassLoaderData* loader_data, |
0 | 3706 Handle protection_domain, |
710 | 3707 KlassHandle host_klass, |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
3708 GrowableArray<Handle>* cp_patches, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3709 TempNewSymbol& parsed_name, |
973
ad6585fd4087
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
879
diff
changeset
|
3710 bool verify, |
0 | 3711 TRAPS) { |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7457
diff
changeset
|
3712 |
4731
4ceaf61479fc
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
3938
diff
changeset
|
3713 // When a retransformable agent is attached, JVMTI caches the |
4ceaf61479fc
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
3938
diff
changeset
|
3714 // class bytes that existed before the first retransformation. |
4ceaf61479fc
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
3938
diff
changeset
|
3715 // If RedefineClasses() was used before the retransformable |
4ceaf61479fc
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
3938
diff
changeset
|
3716 // agent attached, then the cached class bytes may not be the |
4ceaf61479fc
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
3938
diff
changeset
|
3717 // original class bytes. |
11148
825e6cb66923
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
10405
diff
changeset
|
3718 JvmtiCachedClassFileData *cached_class_file = NULL; |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
6983
diff
changeset
|
3719 Handle class_loader(THREAD, loader_data->class_loader()); |
6934 | 3720 bool has_default_methods = false; |
20576
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
3721 bool declares_default_methods = false; |
6934 | 3722 ResourceMark rm(THREAD); |
0 | 3723 |
3724 ClassFileStream* cfs = stream(); | |
3725 // Timing | |
875
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3726 assert(THREAD->is_Java_thread(), "must be a JavaThread"); |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3727 JavaThread* jt = (JavaThread*) THREAD; |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3728 |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3729 PerfClassTraceTime ctimer(ClassLoader::perf_class_parse_time(), |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3730 ClassLoader::perf_class_parse_selftime(), |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3731 NULL, |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3732 jt->get_thread_stat()->perf_recursion_counts_addr(), |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3733 jt->get_thread_stat()->perf_timers_addr(), |
6a93908f268f
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
710
diff
changeset
|
3734 PerfClassTraceTime::PARSE_CLASS); |
0 | 3735 |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3736 init_parsed_class_attributes(loader_data); |
0 | 3737 |
3738 if (JvmtiExport::should_post_class_file_load_hook()) { | |
4751
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3739 // Get the cached class file bytes (if any) from the class that |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3740 // is being redefined or retransformed. We use jvmti_thread_state() |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3741 // instead of JvmtiThreadState::state_for(jt) so we don't allocate |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3742 // a JvmtiThreadState any earlier than necessary. This will help |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3743 // avoid the bug described by 7126851. |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3744 JvmtiThreadState *state = jt->jvmti_thread_state(); |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3745 if (state != NULL) { |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3746 KlassHandle *h_class_being_redefined = |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3747 state->get_class_being_redefined(); |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3748 if (h_class_being_redefined != NULL) { |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3749 instanceKlassHandle ikh_class_being_redefined = |
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3750 instanceKlassHandle(THREAD, (*h_class_being_redefined)()); |
11148
825e6cb66923
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
10405
diff
changeset
|
3751 cached_class_file = ikh_class_being_redefined->get_cached_class_file(); |
4751
5b58979183f9
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
4731
diff
changeset
|
3752 } |
4731
4ceaf61479fc
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
3938
diff
changeset
|
3753 } |
4ceaf61479fc
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
3938
diff
changeset
|
3754 |
0 | 3755 unsigned char* ptr = cfs->buffer(); |
3756 unsigned char* end_ptr = cfs->buffer() + cfs->length(); | |
3757 | |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
6983
diff
changeset
|
3758 JvmtiExport::post_class_file_load_hook(name, class_loader(), protection_domain, |
11148
825e6cb66923
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
10405
diff
changeset
|
3759 &ptr, &end_ptr, &cached_class_file); |
0 | 3760 |
3761 if (ptr != cfs->buffer()) { | |
3762 // JVMTI agent has modified class file data. | |
3763 // Set new class file stream using JVMTI agent modified | |
3764 // class file data. | |
3765 cfs = new ClassFileStream(ptr, end_ptr - ptr, cfs->source()); | |
3766 set_stream(cfs); | |
3767 } | |
3768 } | |
3769 | |
710 | 3770 _host_klass = host_klass; |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
3771 _cp_patches = cp_patches; |
0 | 3772 |
3773 instanceKlassHandle nullHandle; | |
3774 | |
3775 // Figure out whether we can skip format checking (matching classic VM behavior) | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3776 if (DumpSharedSpaces) { |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3777 // verify == true means it's a 'remote' class (i.e., non-boot class) |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3778 // Verification decision is based on BytecodeVerificationRemote flag |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3779 // for those classes. |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3780 _need_verify = (verify) ? BytecodeVerificationRemote : |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3781 BytecodeVerificationLocal; |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3782 } else { |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3783 _need_verify = Verifier::should_verify_for(class_loader(), verify); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3784 } |
0 | 3785 |
3786 // Set the verify flag in stream | |
3787 cfs->set_verify(_need_verify); | |
3788 | |
3789 // Save the class file name for easier error message printing. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3790 _class_name = (name != NULL) ? name : vmSymbols::unknown_class_name(); |
0 | 3791 |
3792 cfs->guarantee_more(8, CHECK_(nullHandle)); // magic, major, minor | |
3793 // Magic value | |
3794 u4 magic = cfs->get_u4_fast(); | |
3795 guarantee_property(magic == JAVA_CLASSFILE_MAGIC, | |
3796 "Incompatible magic value %u in class file %s", | |
3797 magic, CHECK_(nullHandle)); | |
3798 | |
3799 // Version numbers | |
3800 u2 minor_version = cfs->get_u2_fast(); | |
3801 u2 major_version = cfs->get_u2_fast(); | |
3802 | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3803 if (DumpSharedSpaces && major_version < JAVA_1_5_VERSION) { |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3804 ResourceMark rm; |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3805 warning("Pre JDK 1.5 class not supported by CDS: %u.%u %s", |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3806 major_version, minor_version, name->as_C_string()); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3807 Exceptions::fthrow( |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3808 THREAD_AND_LOCATION, |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3809 vmSymbols::java_lang_UnsupportedClassVersionError(), |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3810 "Unsupported major.minor version for dump time %u.%u", |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3811 major_version, |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3812 minor_version); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3813 } |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3814 |
0 | 3815 // Check version numbers - we check this even with verifier off |
3816 if (!is_supported_version(major_version, minor_version)) { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3817 if (name == NULL) { |
0 | 3818 Exceptions::fthrow( |
3819 THREAD_AND_LOCATION, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3820 vmSymbols::java_lang_UnsupportedClassVersionError(), |
17879
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3821 "Unsupported class file version %u.%u, " |
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3822 "this version of the Java Runtime only recognizes class file versions up to %u.%u", |
0 | 3823 major_version, |
17879
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3824 minor_version, |
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3825 JAVA_MAX_SUPPORTED_VERSION, |
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3826 JAVA_MAX_SUPPORTED_MINOR_VERSION); |
0 | 3827 } else { |
3828 ResourceMark rm(THREAD); | |
3829 Exceptions::fthrow( | |
3830 THREAD_AND_LOCATION, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3831 vmSymbols::java_lang_UnsupportedClassVersionError(), |
17879
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3832 "%s has been compiled by a more recent version of the Java Runtime (class file version %u.%u), " |
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3833 "this version of the Java Runtime only recognizes class file versions up to %u.%u", |
0 | 3834 name->as_C_string(), |
3835 major_version, | |
17879
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3836 minor_version, |
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3837 JAVA_MAX_SUPPORTED_VERSION, |
d55853ba088b
8016644: Improve UnsupportedClassVersionError message
ctornqvi
parents:
17646
diff
changeset
|
3838 JAVA_MAX_SUPPORTED_MINOR_VERSION); |
0 | 3839 } |
3840 return nullHandle; | |
3841 } | |
3842 | |
3843 _major_version = major_version; | |
3844 _minor_version = minor_version; | |
3845 | |
3846 | |
3847 // Check if verification needs to be relaxed for this class file | |
3848 // Do not restrict it to jdk1.0 or jdk1.1 to maintain backward compatibility (4982376) | |
3849 _relax_verify = Verifier::relax_verify_for(class_loader()); | |
3850 | |
3851 // Constant pool | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3852 constantPoolHandle cp = parse_constant_pool(CHECK_(nullHandle)); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3853 |
0 | 3854 int cp_size = cp->length(); |
3855 | |
3856 cfs->guarantee_more(8, CHECK_(nullHandle)); // flags, this_class, super_class, infs_len | |
3857 | |
3858 // Access flags | |
3859 AccessFlags access_flags; | |
3860 jint flags = cfs->get_u2_fast() & JVM_RECOGNIZED_CLASS_MODIFIERS; | |
3861 | |
3862 if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) { | |
3863 // Set abstract bit for old class files for backward compatibility | |
3864 flags |= JVM_ACC_ABSTRACT; | |
3865 } | |
3866 verify_legal_class_modifiers(flags, CHECK_(nullHandle)); | |
3867 access_flags.set_flags(flags); | |
3868 | |
3869 // This class and superclass | |
3870 u2 this_class_index = cfs->get_u2_fast(); | |
3871 check_property( | |
3872 valid_cp_range(this_class_index, cp_size) && | |
3873 cp->tag_at(this_class_index).is_unresolved_klass(), | |
3874 "Invalid this class index %u in constant pool in class file %s", | |
3875 this_class_index, CHECK_(nullHandle)); | |
3876 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3877 Symbol* class_name = cp->unresolved_klass_at(this_class_index); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3878 assert(class_name != NULL, "class_name can't be null"); |
0 | 3879 |
3880 // It's important to set parsed_name *before* resolving the super class. | |
3881 // (it's used for cleanup by the caller if parsing fails) | |
3882 parsed_name = class_name; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3883 // parsed_name is returned and can be used if there's an error, so add to |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3884 // its reference count. Caller will decrement the refcount. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3885 parsed_name->increment_refcount(); |
0 | 3886 |
3887 // Update _class_name which could be null previously to be class_name | |
3888 _class_name = class_name; | |
3889 | |
3890 // Don't need to check whether this class name is legal or not. | |
3891 // It has been checked when constant pool is parsed. | |
3892 // However, make sure it is not an array type. | |
3893 if (_need_verify) { | |
3894 guarantee_property(class_name->byte_at(0) != JVM_SIGNATURE_ARRAY, | |
3895 "Bad class name in class file %s", | |
3896 CHECK_(nullHandle)); | |
3897 } | |
3898 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3899 Klass* preserve_this_klass; // for storing result across HandleMark |
0 | 3900 |
3901 // release all handles when parsing is done | |
3902 { HandleMark hm(THREAD); | |
3903 | |
3904 // Checks if name in class file matches requested name | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3905 if (name != NULL && class_name != name) { |
0 | 3906 ResourceMark rm(THREAD); |
3907 Exceptions::fthrow( | |
3908 THREAD_AND_LOCATION, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2085
diff
changeset
|
3909 vmSymbols::java_lang_NoClassDefFoundError(), |
0 | 3910 "%s (wrong name: %s)", |
3911 name->as_C_string(), | |
3912 class_name->as_C_string() | |
3913 ); | |
3914 return nullHandle; | |
3915 } | |
3916 | |
3917 if (TraceClassLoadingPreorder) { | |
10128
41ed397cc0cd
8006267: InterfaceMethod_ref should allow invokestatic and invokespecial
bharadwaj
parents:
9083
diff
changeset
|
3918 tty->print("[Loading %s", (name != NULL) ? name->as_klass_external_name() : "NoName"); |
0 | 3919 if (cfs->source() != NULL) tty->print(" from %s", cfs->source()); |
3920 tty->print_cr("]"); | |
3921 } | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3922 #if INCLUDE_CDS |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3923 if (DumpLoadedClassList != NULL && cfs->source() != NULL && classlist_file->is_open()) { |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3924 // Only dump the classes that can be stored into CDS archive |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3925 if (SystemDictionaryShared::is_sharing_possible(loader_data)) { |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3926 if (name != NULL) { |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3927 ResourceMark rm(THREAD); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3928 classlist_file->print_cr("%s", name->as_C_string()); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3929 classlist_file->flush(); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3930 } |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3931 } |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3932 } |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20353
diff
changeset
|
3933 #endif |
0 | 3934 |
3935 u2 super_class_index = cfs->get_u2_fast(); | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3936 instanceKlassHandle super_klass = parse_super_class(super_class_index, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3937 CHECK_NULL); |
0 | 3938 |
3939 // Interfaces | |
3940 u2 itfs_len = cfs->get_u2_fast(); | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3941 Array<Klass*>* local_interfaces = |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3942 parse_interfaces(itfs_len, protection_domain, _class_name, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3943 &has_default_methods, CHECK_(nullHandle)); |
0 | 3944 |
4744
cd5d8cafcc84
7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
jiangli
parents:
3938
diff
changeset
|
3945 u2 java_fields_count = 0; |
0 | 3946 // Fields (offsets are filled in later) |
3938 | 3947 FieldAllocationCount fac; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3948 Array<u2>* fields = parse_fields(class_name, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3949 access_flags.is_interface(), |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3950 &fac, &java_fields_count, |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3951 CHECK_(nullHandle)); |
0 | 3952 // Methods |
3953 bool has_final_method = false; | |
3954 AccessFlags promoted_flags; | |
3955 promoted_flags.set_flags(0); | |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3956 Array<Method*>* methods = parse_methods(access_flags.is_interface(), |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
3957 &promoted_flags, |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
3958 &has_final_method, |
20576
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
3959 &declares_default_methods, |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
3960 CHECK_(nullHandle)); |
20576
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
3961 if (declares_default_methods) { |
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
3962 has_default_methods = true; |
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
3963 } |
0 | 3964 |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3965 // Additional attributes |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3966 ClassAnnotationCollector parsed_annotations; |
8719
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
8716
diff
changeset
|
3967 parse_classfile_attributes(&parsed_annotations, CHECK_(nullHandle)); |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3968 |
20703
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3969 // Finalize the Annotations metadata object, |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3970 // now that all annotation arrays have been created. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3971 create_combined_annotations(CHECK_(nullHandle)); |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
20576
diff
changeset
|
3972 |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3973 // Make sure this is the end of class file stream |
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
parents:
6100
diff
changeset
|
3974 guarantee_property(cfs->at_eos(), "Extra bytes at the end of class file %s", CHECK_(nullHandle)); |
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3975 |
23959 | 3976 if (_class_name == vmSymbols::java_lang_Object()) { |
3977 check_property(_local_interfaces == Universe::the_empty_klass_array(), | |
3978 "java.lang.Object cannot implement an interface in class file %s", | |
3979 CHECK_(nullHandle)); | |
3980 } | |
0 | 3981 // We check super class after class file is parsed and format is checked |
431
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|
3982 if (super_class_index > 0 && super_klass.is_null()) { |
2177
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3983 Symbol* sk = cp->klass_name_at(super_class_index); |
0 | 3984 if (access_flags.is_interface()) { |
3985 // Before attempting to resolve the superclass, check for class format | |
3986 // errors not checked yet. | |
2177
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|
3987 guarantee_property(sk == vmSymbols::java_lang_Object(), |
0 | 3988 "Interfaces must have java.lang.Object as superclass in class file %s", |
3989 CHECK_(nullHandle)); | |
3990 } | |
6831
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diff
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|
3991 Klass* k = SystemDictionary::resolve_super_or_fail(class_name, sk, |
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|
3992 class_loader, |
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|
3993 protection_domain, |
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|
3994 true, |
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|
3995 CHECK_(nullHandle)); |
875
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mchung
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710
diff
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|
3996 |
0 | 3997 KlassHandle kh (THREAD, k); |
3998 super_klass = instanceKlassHandle(THREAD, kh()); | |
431
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|
3999 } |
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|
4000 if (super_klass.not_null()) { |
6934 | 4001 |
4002 if (super_klass->has_default_methods()) { | |
4003 has_default_methods = true; | |
4004 } | |
4005 | |
0 | 4006 if (super_klass->is_interface()) { |
4007 ResourceMark rm(THREAD); | |
4008 Exceptions::fthrow( | |
4009 THREAD_AND_LOCATION, | |
2177
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|
4010 vmSymbols::java_lang_IncompatibleClassChangeError(), |
0 | 4011 "class %s has interface %s as super class", |
4012 class_name->as_klass_external_name(), | |
4013 super_klass->external_name() | |
4014 ); | |
4015 return nullHandle; | |
4016 } | |
4017 // Make sure super class is not final | |
4018 if (super_klass->is_final()) { | |
4019 THROW_MSG_(vmSymbols::java_lang_VerifyError(), "Cannot inherit from final class", nullHandle); | |
4020 } | |
4021 } | |
4022 | |
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|
4023 // save super klass for error handling. |
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|
4024 _super_klass = super_klass; |
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4025 |
0 | 4026 // Compute the transitive list of all unique interfaces implemented by this class |
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|
4027 _transitive_interfaces = |
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|
4028 compute_transitive_interfaces(super_klass, local_interfaces, CHECK_(nullHandle)); |
0 | 4029 |
4030 // sort methods | |
8719
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4031 intArray* method_ordering = sort_methods(methods); |
0 | 4032 |
4033 // promote flags from parse_methods() to the klass' flags | |
4034 access_flags.add_promoted_flags(promoted_flags.as_int()); | |
4035 | |
4036 // Size of Java vtable (in words) | |
4037 int vtable_size = 0; | |
4038 int itable_size = 0; | |
4039 int num_miranda_methods = 0; | |
4040 | |
6934 | 4041 GrowableArray<Method*> all_mirandas(20); |
4042 | |
4043 klassVtable::compute_vtable_size_and_num_mirandas( | |
4044 &vtable_size, &num_miranda_methods, &all_mirandas, super_klass(), methods, | |
4045 access_flags, class_loader, class_name, local_interfaces, | |
652
4aaa9f5e02a8
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|
4046 CHECK_(nullHandle)); |
0 | 4047 |
4048 // Size of Java itable (in words) | |
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|
4049 itable_size = access_flags.is_interface() ? 0 : klassItable::compute_itable_size(_transitive_interfaces); |
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|
4050 |
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|
4051 FieldLayoutInfo info; |
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|
4052 layout_fields(class_loader, &fac, &parsed_annotations, &info, CHECK_NULL); |
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|
4053 |
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|
4054 int total_oop_map_size2 = |
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|
4055 InstanceKlass::nonstatic_oop_map_size(info.total_oop_map_count); |
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|
4056 |
0 | 4057 // Compute reference type |
4058 ReferenceType rt; | |
4059 if (super_klass() == NULL) { | |
4060 rt = REF_NONE; | |
4061 } else { | |
4062 rt = super_klass->reference_type(); | |
4063 } | |
4064 | |
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|
4065 // We can now create the basic Klass* for this klass |
8719
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diff
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|
4066 _klass = InstanceKlass::allocate_instance_klass(loader_data, |
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|
4067 vtable_size, |
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diff
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|
4068 itable_size, |
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diff
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|
4069 info.static_field_size, |
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diff
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|
4070 total_oop_map_size2, |
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diff
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|
4071 rt, |
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diff
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|
4072 access_flags, |
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diff
changeset
|
4073 name, |
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|
4074 super_klass(), |
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|
4075 !host_klass.is_null(), |
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diff
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|
4076 CHECK_(nullHandle)); |
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|
4077 instanceKlassHandle this_klass (THREAD, _klass); |
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diff
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|
4078 |
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diff
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|
4079 assert(this_klass->static_field_size() == info.static_field_size, "sanity"); |
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coleenp
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diff
changeset
|
4080 assert(this_klass->nonstatic_oop_map_count() == info.total_oop_map_count, |
938 | 4081 "sanity"); |
0 | 4082 |
4083 // Fill in information already parsed | |
975 | 4084 this_klass->set_should_verify_class(verify); |
8719
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diff
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|
4085 jint lh = Klass::instance_layout_helper(info.instance_size, false); |
0 | 4086 this_klass->set_layout_helper(lh); |
4087 assert(this_klass->oop_is_instance(), "layout is correct"); | |
8719
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coleenp
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diff
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|
4088 assert(this_klass->size_helper() == info.instance_size, "correct size_helper"); |
0 | 4089 // Not yet: supers are done below to support the new subtype-checking fields |
4090 //this_klass->set_super(super_klass()); | |
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|
4091 this_klass->set_class_loader_data(loader_data); |
8719
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diff
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|
4092 this_klass->set_nonstatic_field_size(info.nonstatic_field_size); |
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coleenp
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diff
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|
4093 this_klass->set_has_nonstatic_fields(info.has_nonstatic_fields); |
3938 | 4094 this_klass->set_static_oop_field_count(fac.count[STATIC_OOP]); |
8719
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diff
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|
4095 |
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diff
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|
4096 apply_parsed_class_metadata(this_klass, java_fields_count, CHECK_NULL); |
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diff
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|
4097 |
0 | 4098 if (has_final_method) { |
4099 this_klass->set_has_final_method(); | |
4100 } | |
8719
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diff
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|
4101 this_klass->copy_method_ordering(method_ordering, CHECK_NULL); |
12264
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
12190
diff
changeset
|
4102 // The InstanceKlass::_methods_jmethod_ids cache |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
12190
diff
changeset
|
4103 // is managed on the assumption that the initial cache |
977
74a5db69c1fe
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
975
diff
changeset
|
4104 // size is equal to the number of methods in the class. If |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
4105 // that changes, then InstanceKlass::idnum_can_increment() |
977
74a5db69c1fe
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
975
diff
changeset
|
4106 // has to be changed accordingly. |
0 | 4107 this_klass->set_initial_method_idnum(methods->length()); |
4108 this_klass->set_name(cp->klass_name_at(this_class_index)); | |
6852 | 4109 if (is_anonymous()) // I am well known to myself |
474
7a018855d2f0
6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents:
431
diff
changeset
|
4110 cp->klass_at_put(this_class_index, this_klass()); // eagerly resolve |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
4111 |
0 | 4112 this_klass->set_minor_version(minor_version); |
4113 this_klass->set_major_version(major_version); | |
6934 | 4114 this_klass->set_has_default_methods(has_default_methods); |
20576
90257dfad6e3
8043275: 8u40 backport: Fix interface initialization for default methods.
acorn
parents:
20561
diff
changeset
|
4115 this_klass->set_declares_default_methods(declares_default_methods); |
0 | 4116 |
17998
ae92351815b6
8039150: host_klass invariant fails when verifying newly loaded JSR-292 anonymous classes
coleenp
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17934
diff
changeset
|
4117 if (!host_klass.is_null()) { |
ae92351815b6
8039150: host_klass invariant fails when verifying newly loaded JSR-292 anonymous classes
coleenp
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17934
diff
changeset
|
4118 assert (this_klass->is_anonymous(), "should be the same"); |
ae92351815b6
8039150: host_klass invariant fails when verifying newly loaded JSR-292 anonymous classes
coleenp
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17934
diff
changeset
|
4119 this_klass->set_host_klass(host_klass()); |
ae92351815b6
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coleenp
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17934
diff
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|
4120 } |
ae92351815b6
8039150: host_klass invariant fails when verifying newly loaded JSR-292 anonymous classes
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17934
diff
changeset
|
4121 |
6725
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6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
4122 // Set up Method*::intrinsic_id as soon as we know the names of methods. |
856
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
710
diff
changeset
|
4123 // (We used to do this lazily, but now we query it in Rewriter, |
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
710
diff
changeset
|
4124 // which is eagerly done for every method, so we might as well do it now, |
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
710
diff
changeset
|
4125 // when everything is fresh in memory.) |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
4126 if (Method::klass_id_for_intrinsics(this_klass()) != vmSymbols::NO_SID) { |
856
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
710
diff
changeset
|
4127 for (int j = 0; j < methods->length(); j++) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
4128 methods->at(j)->init_intrinsic_id(); |
856
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
710
diff
changeset
|
4129 } |
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
710
diff
changeset
|
4130 } |
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
710
diff
changeset
|
4131 |
11148
825e6cb66923
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
10405
diff
changeset
|
4132 if (cached_class_file != NULL) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
4133 // JVMTI: we have an InstanceKlass now, tell it about the cached bytes |
11148
825e6cb66923
8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents:
10405
diff
changeset
|
4134 this_klass->set_cached_class_file(cached_class_file); |
0 | 4135 } |
4136 | |
6934 | 4137 // Fill in field values obtained by parse_classfile_attributes |
4138 if (parsed_annotations.has_any_annotations()) | |
4139 parsed_annotations.apply_to(this_klass); | |
4140 apply_parsed_class_attributes(this_klass); | |
4141 | |
0 | 4142 // Miranda methods |
4143 if ((num_miranda_methods > 0) || | |
4144 // if this class introduced new miranda methods or | |
4145 (super_klass.not_null() && (super_klass->has_miranda_methods())) | |
4146 // super class exists and this class inherited miranda methods | |
4147 ) { | |
4148 this_klass->set_has_miranda_methods(); // then set a flag | |
4149 } | |
4150 | |
4151 // Fill in information needed to compute superclasses. | |
4152 this_klass->initialize_supers(super_klass(), CHECK_(nullHandle)); | |
4153 | |
4154 // Initialize itable offset tables | |
4155 klassItable::setup_itable_offset_table(this_klass); | |
4156 | |
6934 | 4157 // Compute transitive closure of interfaces this class implements |
0 | 4158 // Do final class setup |
8719
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diff
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|
4159 fill_oop_maps(this_klass, info.nonstatic_oop_map_count, info.nonstatic_oop_offsets, info.nonstatic_oop_counts); |
0 | 4160 |
6222
6d8f36bcef55
6711908: JVM needs direct access to some annotations
jrose
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6100
diff
changeset
|
4161 // Fill in has_finalizer, has_vanilla_constructor, and layout_helper |
0 | 4162 set_precomputed_flags(this_klass); |
4163 | |
4164 // reinitialize modifiers, using the InnerClasses attribute | |
4165 int computed_modifiers = this_klass->compute_modifier_flags(CHECK_(nullHandle)); | |
4166 this_klass->set_modifier_flags(computed_modifiers); | |
4167 | |
4168 // check if this class can access its super class | |
4169 check_super_class_access(this_klass, CHECK_(nullHandle)); | |
4170 | |
4171 // check if this class can access its superinterfaces | |
4172 check_super_interface_access(this_klass, CHECK_(nullHandle)); | |
4173 | |
4174 // check if this class overrides any final method | |
4175 check_final_method_override(this_klass, CHECK_(nullHandle)); | |
4176 | |
4177 // check that if this class is an interface then it doesn't have static methods | |
4178 if (this_klass->is_interface()) { | |
7579
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
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7462
diff
changeset
|
4179 /* An interface in a JAVA 8 classfile can be static */ |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
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7462
diff
changeset
|
4180 if (_major_version < JAVA_8_VERSION) { |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
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7462
diff
changeset
|
4181 check_illegal_static_method(this_klass, CHECK_(nullHandle)); |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
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7462
diff
changeset
|
4182 } |
0 | 4183 } |
4184 | |
10343
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
10340
diff
changeset
|
4185 // Allocate mirror and initialize static fields |
20415
47e3110c47e8
6642881: Improve performance of Class.getClassLoader()
coleenp
parents:
20375
diff
changeset
|
4186 java_lang_Class::create_mirror(this_klass, class_loader, protection_domain, |
47e3110c47e8
6642881: Improve performance of Class.getClassLoader()
coleenp
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20375
diff
changeset
|
4187 CHECK_(nullHandle)); |
6934 | 4188 |
4189 // Generate any default methods - default methods are interface methods | |
4190 // that have a default implementation. This is new with Lambda project. | |
13055
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|
4191 if (has_default_methods ) { |
6934 | 4192 DefaultMethods::generate_default_methods( |
4193 this_klass(), &all_mirandas, CHECK_(nullHandle)); | |
4194 } | |
4195 | |
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4196 // Update the loader_data graph. |
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4197 record_defined_class_dependencies(this_klass, CHECK_NULL); |
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4198 |
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4199 ClassLoadingService::notify_class_loaded(InstanceKlass::cast(this_klass()), |
0 | 4200 false /* not shared class */); |
4201 | |
4202 if (TraceClassLoading) { | |
6934 | 4203 ResourceMark rm; |
0 | 4204 // print in a single call to reduce interleaving of output |
4205 if (cfs->source() != NULL) { | |
4206 tty->print("[Loaded %s from %s]\n", this_klass->external_name(), | |
4207 cfs->source()); | |
4208 } else if (class_loader.is_null()) { | |
20561
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20528
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|
4209 Klass* caller = |
8e15758b2e94
8031376: TraceClassLoading expects there to be a (Java) caller when you load a class with the bootstrap class loader
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|
4210 THREAD->is_Java_thread() |
8e15758b2e94
8031376: TraceClassLoading expects there to be a (Java) caller when you load a class with the bootstrap class loader
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|
4211 ? ((JavaThread*)THREAD)->security_get_caller_class(1) |
8e15758b2e94
8031376: TraceClassLoading expects there to be a (Java) caller when you load a class with the bootstrap class loader
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|
4212 : NULL; |
8e15758b2e94
8031376: TraceClassLoading expects there to be a (Java) caller when you load a class with the bootstrap class loader
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|
4213 // caller can be NULL, for example, during a JVMTI VM_Init hook |
8e15758b2e94
8031376: TraceClassLoading expects there to be a (Java) caller when you load a class with the bootstrap class loader
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|
4214 if (caller != NULL) { |
0 | 4215 tty->print("[Loaded %s by instance of %s]\n", |
4216 this_klass->external_name(), | |
6725
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4217 InstanceKlass::cast(caller)->external_name()); |
0 | 4218 } else { |
4219 tty->print("[Loaded %s]\n", this_klass->external_name()); | |
4220 } | |
4221 } else { | |
4222 tty->print("[Loaded %s from %s]\n", this_klass->external_name(), | |
6725
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4223 InstanceKlass::cast(class_loader->klass())->external_name()); |
0 | 4224 } |
4225 } | |
4226 | |
4227 if (TraceClassResolution) { | |
6934 | 4228 ResourceMark rm; |
0 | 4229 // print out the superclass. |
6983 | 4230 const char * from = this_klass()->external_name(); |
0 | 4231 if (this_klass->java_super() != NULL) { |
6725
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4232 tty->print("RESOLVE %s %s (super)\n", from, InstanceKlass::cast(this_klass->java_super())->external_name()); |
0 | 4233 } |
4234 // print out each of the interface classes referred to by this class. | |
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4235 Array<Klass*>* local_interfaces = this_klass->local_interfaces(); |
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4236 if (local_interfaces != NULL) { |
0 | 4237 int length = local_interfaces->length(); |
4238 for (int i = 0; i < length; i++) { | |
6725
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4239 Klass* k = local_interfaces->at(i); |
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4240 InstanceKlass* to_class = InstanceKlass::cast(k); |
0 | 4241 const char * to = to_class->external_name(); |
657
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
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|
4242 tty->print("RESOLVE %s %s (interface)\n", from, to); |
0 | 4243 } |
4244 } | |
4245 } | |
4246 | |
4247 // preserve result across HandleMark | |
4248 preserve_this_klass = this_klass(); | |
4249 } | |
4250 | |
6725
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4251 // Create new handle outside HandleMark (might be needed for |
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4252 // Extended Class Redefinition) |
0 | 4253 instanceKlassHandle this_klass (THREAD, preserve_this_klass); |
6725
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4254 debug_only(this_klass->verify();) |
0 | 4255 |
8719
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4256 // Clear class if no error has occurred so destructor doesn't deallocate it |
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|
4257 _klass = NULL; |
0 | 4258 return this_klass; |
4259 } | |
4260 | |
8719
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4261 // Destructor to clean up if there's an error |
c8b31b461e1a
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|
4262 ClassFileParser::~ClassFileParser() { |
c8b31b461e1a
8003419: NPG: Clean up metadata created during class loading if failure
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|
4263 MetadataFactory::free_metadata(_loader_data, _cp); |
c8b31b461e1a
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|
4264 MetadataFactory::free_array<u2>(_loader_data, _fields); |
c8b31b461e1a
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|
4265 |
c8b31b461e1a
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|
4266 // Free methods |
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|
4267 InstanceKlass::deallocate_methods(_loader_data, _methods); |
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|
4268 |
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4269 // beware of the Universe::empty_blah_array!! |
c8b31b461e1a
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4270 if (_inner_classes != Universe::the_empty_short_array()) { |
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4271 MetadataFactory::free_array<u2>(_loader_data, _inner_classes); |
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|
4272 } |
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|
4273 |
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|
4274 // Free interfaces |
c8b31b461e1a
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|
4275 InstanceKlass::deallocate_interfaces(_loader_data, _super_klass(), |
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|
4276 _local_interfaces, _transitive_interfaces); |
c8b31b461e1a
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|
4277 |
20703
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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diff
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|
4278 if (_combined_annotations != NULL) { |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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|
4279 // After all annotations arrays have been created, they are installed into the |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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|
4280 // Annotations object that will be assigned to the InstanceKlass being created. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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|
4281 |
0fa1f71a905b
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|
4282 // Deallocate the Annotations object and the installed annotations arrays. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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|
4283 _combined_annotations->deallocate_contents(_loader_data); |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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|
4284 |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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diff
changeset
|
4285 // If the _combined_annotations pointer is non-NULL, |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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|
4286 // then the other annotations fields should have been cleared. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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changeset
|
4287 assert(_annotations == NULL, "Should have been cleared"); |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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|
4288 assert(_type_annotations == NULL, "Should have been cleared"); |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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|
4289 assert(_fields_annotations == NULL, "Should have been cleared"); |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
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changeset
|
4290 assert(_fields_type_annotations == NULL, "Should have been cleared"); |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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|
4291 } else { |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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|
4292 // If the annotations arrays were not installed into the Annotations object, |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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|
4293 // then they have to be deallocated explicitly. |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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|
4294 MetadataFactory::free_array<u1>(_loader_data, _annotations); |
0fa1f71a905b
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|
4295 MetadataFactory::free_array<u1>(_loader_data, _type_annotations); |
0fa1f71a905b
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|
4296 Annotations::free_contents(_loader_data, _fields_annotations); |
0fa1f71a905b
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
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|
4297 Annotations::free_contents(_loader_data, _fields_type_annotations); |
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|
4298 } |
8719
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|
4299 |
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|
4300 clear_class_metadata(); |
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|
4301 |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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17646
diff
changeset
|
4302 // deallocate the klass if already created. Don't directly deallocate, but add |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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17646
diff
changeset
|
4303 // to the deallocate list so that the klass is removed from the CLD::_klasses list |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
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|
4304 // at a safepoint. |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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17646
diff
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|
4305 if (_klass != NULL) { |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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17646
diff
changeset
|
4306 _loader_data->add_to_deallocate_list(_klass); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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17646
diff
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|
4307 } |
8719
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|
4308 _klass = NULL; |
c8b31b461e1a
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|
4309 } |
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|
4310 |
7587 | 4311 void ClassFileParser::print_field_layout(Symbol* name, |
4312 Array<u2>* fields, | |
4313 constantPoolHandle cp, | |
4314 int instance_size, | |
4315 int instance_fields_start, | |
4316 int instance_fields_end, | |
4317 int static_fields_end) { | |
4318 tty->print("%s: field layout\n", name->as_klass_external_name()); | |
4319 tty->print(" @%3d %s\n", instance_fields_start, "--- instance fields start ---"); | |
4320 for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) { | |
4321 if (!fs.access_flags().is_static()) { | |
4322 tty->print(" @%3d \"%s\" %s\n", | |
4323 fs.offset(), | |
4324 fs.name()->as_klass_external_name(), | |
4325 fs.signature()->as_klass_external_name()); | |
4326 } | |
4327 } | |
4328 tty->print(" @%3d %s\n", instance_fields_end, "--- instance fields end ---"); | |
4329 tty->print(" @%3d %s\n", instance_size * wordSize, "--- instance ends ---"); | |
4330 tty->print(" @%3d %s\n", InstanceMirrorKlass::offset_of_static_fields(), "--- static fields start ---"); | |
4331 for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) { | |
4332 if (fs.access_flags().is_static()) { | |
4333 tty->print(" @%3d \"%s\" %s\n", | |
4334 fs.offset(), | |
4335 fs.name()->as_klass_external_name(), | |
4336 fs.signature()->as_klass_external_name()); | |
4337 } | |
4338 } | |
4339 tty->print(" @%3d %s\n", static_fields_end, "--- static fields end ---"); | |
4340 tty->print("\n"); | |
4341 } | |
4342 | |
939
9eebd3ac74cf
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938
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|
4343 unsigned int |
9eebd3ac74cf
6845368: large objects cause a crash or unexpected exception
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|
4344 ClassFileParser::compute_oop_map_count(instanceKlassHandle super, |
9eebd3ac74cf
6845368: large objects cause a crash or unexpected exception
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938
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|
4345 unsigned int nonstatic_oop_map_count, |
9eebd3ac74cf
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938
diff
changeset
|
4346 int first_nonstatic_oop_offset) { |
9eebd3ac74cf
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938
diff
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|
4347 unsigned int map_count = |
9eebd3ac74cf
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|
4348 super.is_null() ? 0 : super->nonstatic_oop_map_count(); |
0 | 4349 if (nonstatic_oop_map_count > 0) { |
4350 // We have oops to add to map | |
938 | 4351 if (map_count == 0) { |
4352 map_count = nonstatic_oop_map_count; | |
0 | 4353 } else { |
938 | 4354 // Check whether we should add a new map block or whether the last one can |
4355 // be extended | |
4356 OopMapBlock* const first_map = super->start_of_nonstatic_oop_maps(); | |
4357 OopMapBlock* const last_map = first_map + map_count - 1; | |
4358 | |
4359 int next_offset = last_map->offset() + last_map->count() * heapOopSize; | |
0 | 4360 if (next_offset == first_nonstatic_oop_offset) { |
4361 // There is no gap bettwen superklass's last oop field and first | |
4362 // local oop field, merge maps. | |
4363 nonstatic_oop_map_count -= 1; | |
4364 } else { | |
4365 // Superklass didn't end with a oop field, add extra maps | |
938 | 4366 assert(next_offset < first_nonstatic_oop_offset, "just checking"); |
0 | 4367 } |
938 | 4368 map_count += nonstatic_oop_map_count; |
0 | 4369 } |
4370 } | |
938 | 4371 return map_count; |
0 | 4372 } |
4373 | |
4374 | |
4375 void ClassFileParser::fill_oop_maps(instanceKlassHandle k, | |
939
9eebd3ac74cf
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938
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|
4376 unsigned int nonstatic_oop_map_count, |
9eebd3ac74cf
6845368: large objects cause a crash or unexpected exception
jcoomes
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938
diff
changeset
|
4377 int* nonstatic_oop_offsets, |
9eebd3ac74cf
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938
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|
4378 unsigned int* nonstatic_oop_counts) { |
0 | 4379 OopMapBlock* this_oop_map = k->start_of_nonstatic_oop_maps(); |
6725
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|
4380 const InstanceKlass* const super = k->superklass(); |
939
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|
4381 const unsigned int super_count = super ? super->nonstatic_oop_map_count() : 0; |
938 | 4382 if (super_count > 0) { |
4383 // Copy maps from superklass | |
0 | 4384 OopMapBlock* super_oop_map = super->start_of_nonstatic_oop_maps(); |
939
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|
4385 for (unsigned int i = 0; i < super_count; ++i) { |
0 | 4386 *this_oop_map++ = *super_oop_map++; |
4387 } | |
4388 } | |
938 | 4389 |
0 | 4390 if (nonstatic_oop_map_count > 0) { |
938 | 4391 if (super_count + nonstatic_oop_map_count > k->nonstatic_oop_map_count()) { |
4392 // The counts differ because there is no gap between superklass's last oop | |
4393 // field and the first local oop field. Extend the last oop map copied | |
0 | 4394 // from the superklass instead of creating new one. |
4395 nonstatic_oop_map_count--; | |
4396 nonstatic_oop_offsets++; | |
4397 this_oop_map--; | |
938 | 4398 this_oop_map->set_count(this_oop_map->count() + *nonstatic_oop_counts++); |
0 | 4399 this_oop_map++; |
4400 } | |
938 | 4401 |
0 | 4402 // Add new map blocks, fill them |
4403 while (nonstatic_oop_map_count-- > 0) { | |
4404 this_oop_map->set_offset(*nonstatic_oop_offsets++); | |
938 | 4405 this_oop_map->set_count(*nonstatic_oop_counts++); |
0 | 4406 this_oop_map++; |
4407 } | |
938 | 4408 assert(k->start_of_nonstatic_oop_maps() + k->nonstatic_oop_map_count() == |
4409 this_oop_map, "sanity"); | |
0 | 4410 } |
4411 } | |
4412 | |
4413 | |
4414 void ClassFileParser::set_precomputed_flags(instanceKlassHandle k) { | |
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4415 Klass* super = k->super(); |
0 | 4416 |
4417 // Check if this klass has an empty finalize method (i.e. one with return bytecode only), | |
4418 // in which case we don't have to register objects as finalizable | |
4419 if (!_has_empty_finalizer) { | |
4420 if (_has_finalizer || | |
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4421 (super != NULL && super->has_finalizer())) { |
0 | 4422 k->set_has_finalizer(); |
4423 } | |
4424 } | |
4425 | |
4426 #ifdef ASSERT | |
4427 bool f = false; | |
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4428 Method* m = k->lookup_method(vmSymbols::finalize_method_name(), |
0 | 4429 vmSymbols::void_method_signature()); |
4430 if (m != NULL && !m->is_empty_method()) { | |
23182
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4431 f = true; |
0 | 4432 } |
23182
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4433 |
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4434 // Spec doesn't prevent agent from redefinition of empty finalizer. |
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4435 // Despite the fact that it's generally bad idea and redefined finalizer |
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4436 // will not work as expected we shouldn't abort vm in this case |
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4437 if (!k->has_redefined_this_or_super()) { |
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4438 assert(f == k->has_finalizer(), "inconsistent has_finalizer"); |
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4439 } |
0 | 4440 #endif |
4441 | |
4442 // Check if this klass supports the java.lang.Cloneable interface | |
1142 | 4443 if (SystemDictionary::Cloneable_klass_loaded()) { |
4444 if (k->is_subtype_of(SystemDictionary::Cloneable_klass())) { | |
0 | 4445 k->set_is_cloneable(); |
4446 } | |
4447 } | |
4448 | |
4449 // Check if this klass has a vanilla default constructor | |
4450 if (super == NULL) { | |
4451 // java.lang.Object has empty default constructor | |
4452 k->set_has_vanilla_constructor(); | |
4453 } else { | |
6983 | 4454 if (super->has_vanilla_constructor() && |
0 | 4455 _has_vanilla_constructor) { |
4456 k->set_has_vanilla_constructor(); | |
4457 } | |
4458 #ifdef ASSERT | |
4459 bool v = false; | |
6983 | 4460 if (super->has_vanilla_constructor()) { |
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4461 Method* constructor = k->find_method(vmSymbols::object_initializer_name( |
0 | 4462 ), vmSymbols::void_method_signature()); |
4463 if (constructor != NULL && constructor->is_vanilla_constructor()) { | |
4464 v = true; | |
4465 } | |
4466 } | |
4467 assert(v == k->has_vanilla_constructor(), "inconsistent has_vanilla_constructor"); | |
4468 #endif | |
4469 } | |
4470 | |
4471 // If it cannot be fast-path allocated, set a bit in the layout helper. | |
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4472 // See documentation of InstanceKlass::can_be_fastpath_allocated(). |
0 | 4473 assert(k->size_helper() > 0, "layout_helper is initialized"); |
4474 if ((!RegisterFinalizersAtInit && k->has_finalizer()) | |
4475 || k->is_abstract() || k->is_interface() | |
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4476 || (k->name() == vmSymbols::java_lang_Class() && k->class_loader() == NULL) |
0 | 4477 || k->size_helper() >= FastAllocateSizeLimit) { |
4478 // Forbid fast-path allocation. | |
4479 jint lh = Klass::instance_layout_helper(k->size_helper(), true); | |
4480 k->set_layout_helper(lh); | |
4481 } | |
4482 } | |
4483 | |
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4484 // Attach super classes and interface classes to class loader data |
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4485 void ClassFileParser::record_defined_class_dependencies(instanceKlassHandle defined_klass, TRAPS) { |
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4486 ClassLoaderData * defining_loader_data = defined_klass->class_loader_data(); |
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4487 if (defining_loader_data->is_the_null_class_loader_data()) { |
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4488 // Dependencies to null class loader data are implicit. |
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4489 return; |
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4490 } else { |
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4491 // add super class dependency |
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4492 Klass* super = defined_klass->super(); |
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4493 if (super != NULL) { |
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4494 defining_loader_data->record_dependency(super, CHECK); |
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4495 } |
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4496 |
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4497 // add super interface dependencies |
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4498 Array<Klass*>* local_interfaces = defined_klass->local_interfaces(); |
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4499 if (local_interfaces != NULL) { |
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4500 int length = local_interfaces->length(); |
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4501 for (int i = 0; i < length; i++) { |
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4502 defining_loader_data->record_dependency(local_interfaces->at(i), CHECK); |
0 | 4503 } |
4504 } | |
4505 } | |
4506 } | |
4507 | |
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4508 // utility methods for appending an array with check for duplicates |
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4509 |
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4510 void append_interfaces(GrowableArray<Klass*>* result, Array<Klass*>* ifs) { |
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4511 // iterate over new interfaces |
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4512 for (int i = 0; i < ifs->length(); i++) { |
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4513 Klass* e = ifs->at(i); |
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4514 assert(e->is_klass() && InstanceKlass::cast(e)->is_interface(), "just checking"); |
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4515 // add new interface |
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4516 result->append_if_missing(e); |
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4517 } |
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|
4518 } |
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4519 |
8719
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4520 Array<Klass*>* ClassFileParser::compute_transitive_interfaces( |
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4521 instanceKlassHandle super, |
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|
4522 Array<Klass*>* local_ifs, TRAPS) { |
0 | 4523 // Compute maximum size for transitive interfaces |
4524 int max_transitive_size = 0; | |
4525 int super_size = 0; | |
4526 // Add superclass transitive interfaces size | |
4527 if (super.not_null()) { | |
4528 super_size = super->transitive_interfaces()->length(); | |
4529 max_transitive_size += super_size; | |
4530 } | |
4531 // Add local interfaces' super interfaces | |
4532 int local_size = local_ifs->length(); | |
4533 for (int i = 0; i < local_size; i++) { | |
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4534 Klass* l = local_ifs->at(i); |
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4535 max_transitive_size += InstanceKlass::cast(l)->transitive_interfaces()->length(); |
0 | 4536 } |
4537 // Finally add local interfaces | |
4538 max_transitive_size += local_size; | |
4539 // Construct array | |
4540 if (max_transitive_size == 0) { | |
4541 // no interfaces, use canonicalized array | |
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4542 return Universe::the_empty_klass_array(); |
0 | 4543 } else if (max_transitive_size == super_size) { |
4544 // no new local interfaces added, share superklass' transitive interface array | |
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4545 return super->transitive_interfaces(); |
0 | 4546 } else if (max_transitive_size == local_size) { |
4547 // only local interfaces added, share local interface array | |
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4548 return local_ifs; |
0 | 4549 } else { |
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|
4550 ResourceMark rm; |
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4551 GrowableArray<Klass*>* result = new GrowableArray<Klass*>(max_transitive_size); |
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4552 |
0 | 4553 // Copy down from superclass |
4554 if (super.not_null()) { | |
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4555 append_interfaces(result, super->transitive_interfaces()); |
0 | 4556 } |
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4557 |
0 | 4558 // Copy down from local interfaces' superinterfaces |
4559 for (int i = 0; i < local_ifs->length(); i++) { | |
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4560 Klass* l = local_ifs->at(i); |
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4561 append_interfaces(result, InstanceKlass::cast(l)->transitive_interfaces()); |
0 | 4562 } |
4563 // Finally add local interfaces | |
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|
4564 append_interfaces(result, local_ifs); |
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|
4565 |
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4566 // length will be less than the max_transitive_size if duplicates were removed |
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4567 int length = result->length(); |
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|
4568 assert(length <= max_transitive_size, "just checking"); |
8719
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|
4569 Array<Klass*>* new_result = MetadataFactory::new_array<Klass*>(_loader_data, length, CHECK_NULL); |
6725
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4570 for (int i = 0; i < length; i++) { |
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4571 Klass* e = result->at(i); |
0 | 4572 assert(e != NULL, "just checking"); |
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4573 new_result->at_put(i, e); |
0 | 4574 } |
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|
4575 return new_result; |
0 | 4576 } |
4577 } | |
4578 | |
4579 void ClassFileParser::check_super_class_access(instanceKlassHandle this_klass, TRAPS) { | |
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4580 Klass* super = this_klass->super(); |
0 | 4581 if ((super != NULL) && |
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4582 (!Reflection::verify_class_access(this_klass(), super, false))) { |
0 | 4583 ResourceMark rm(THREAD); |
4584 Exceptions::fthrow( | |
4585 THREAD_AND_LOCATION, | |
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|
4586 vmSymbols::java_lang_IllegalAccessError(), |
0 | 4587 "class %s cannot access its superclass %s", |
4588 this_klass->external_name(), | |
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|
4589 InstanceKlass::cast(super)->external_name() |
0 | 4590 ); |
4591 return; | |
4592 } | |
4593 } | |
4594 | |
4595 | |
4596 void ClassFileParser::check_super_interface_access(instanceKlassHandle this_klass, TRAPS) { | |
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4597 Array<Klass*>* local_interfaces = this_klass->local_interfaces(); |
0 | 4598 int lng = local_interfaces->length(); |
4599 for (int i = lng - 1; i >= 0; i--) { | |
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4600 Klass* k = local_interfaces->at(i); |
6983 | 4601 assert (k != NULL && k->is_interface(), "invalid interface"); |
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4602 if (!Reflection::verify_class_access(this_klass(), k, false)) { |
0 | 4603 ResourceMark rm(THREAD); |
4604 Exceptions::fthrow( | |
4605 THREAD_AND_LOCATION, | |
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|
4606 vmSymbols::java_lang_IllegalAccessError(), |
0 | 4607 "class %s cannot access its superinterface %s", |
4608 this_klass->external_name(), | |
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|
4609 InstanceKlass::cast(k)->external_name() |
0 | 4610 ); |
4611 return; | |
4612 } | |
4613 } | |
4614 } | |
4615 | |
4616 | |
4617 void ClassFileParser::check_final_method_override(instanceKlassHandle this_klass, TRAPS) { | |
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4618 Array<Method*>* methods = this_klass->methods(); |
0 | 4619 int num_methods = methods->length(); |
4620 | |
4621 // go thru each method and check if it overrides a final method | |
4622 for (int index = 0; index < num_methods; index++) { | |
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|
4623 Method* m = methods->at(index); |
0 | 4624 |
13398
19146c82b6fc
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|
4625 // skip private, static, and <init> methods |
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|
4626 if ((!m->is_private() && !m->is_static()) && |
0 | 4627 (m->name() != vmSymbols::object_initializer_name())) { |
4628 | |
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|
4629 Symbol* name = m->name(); |
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|
4630 Symbol* signature = m->signature(); |
6725
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4631 Klass* k = this_klass->super(); |
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|
4632 Method* super_m = NULL; |
0 | 4633 while (k != NULL) { |
4634 // skip supers that don't have final methods. | |
6725
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|
4635 if (k->has_final_method()) { |
0 | 4636 // lookup a matching method in the super class hierarchy |
6725
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|
4637 super_m = InstanceKlass::cast(k)->lookup_method(name, signature); |
0 | 4638 if (super_m == NULL) { |
4639 break; // didn't find any match; get out | |
4640 } | |
4641 | |
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diff
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|
4642 if (super_m->is_final() && !super_m->is_static() && |
4638c4d7ff10
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|
4643 // matching method in super is final, and not static |
6725
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|
4644 (Reflection::verify_field_access(this_klass(), |
0 | 4645 super_m->method_holder(), |
4646 super_m->method_holder(), | |
4647 super_m->access_flags(), false)) | |
4648 // this class can access super final method and therefore override | |
4649 ) { | |
4650 ResourceMark rm(THREAD); | |
4651 Exceptions::fthrow( | |
4652 THREAD_AND_LOCATION, | |
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diff
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|
4653 vmSymbols::java_lang_VerifyError(), |
0 | 4654 "class %s overrides final method %s.%s", |
4655 this_klass->external_name(), | |
4656 name->as_C_string(), | |
4657 signature->as_C_string() | |
4658 ); | |
4659 return; | |
4660 } | |
4661 | |
4662 // continue to look from super_m's holder's super. | |
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18fb7da42534
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coleenp
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6934
diff
changeset
|
4663 k = super_m->method_holder()->super(); |
0 | 4664 continue; |
4665 } | |
4666 | |
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|
4667 k = k->super(); |
0 | 4668 } |
4669 } | |
4670 } | |
4671 } | |
4672 | |
4673 | |
4674 // assumes that this_klass is an interface | |
4675 void ClassFileParser::check_illegal_static_method(instanceKlassHandle this_klass, TRAPS) { | |
4676 assert(this_klass->is_interface(), "not an interface"); | |
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|
4677 Array<Method*>* methods = this_klass->methods(); |
0 | 4678 int num_methods = methods->length(); |
4679 | |
4680 for (int index = 0; index < num_methods; index++) { | |
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|
4681 Method* m = methods->at(index); |
0 | 4682 // if m is static and not the init method, throw a verify error |
4683 if ((m->is_static()) && (m->name() != vmSymbols::class_initializer_name())) { | |
4684 ResourceMark rm(THREAD); | |
4685 Exceptions::fthrow( | |
4686 THREAD_AND_LOCATION, | |
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|
4687 vmSymbols::java_lang_VerifyError(), |
0 | 4688 "Illegal static method %s in interface %s", |
4689 m->name()->as_C_string(), | |
4690 this_klass->external_name() | |
4691 ); | |
4692 return; | |
4693 } | |
4694 } | |
4695 } | |
4696 | |
4697 // utility methods for format checking | |
4698 | |
4699 void ClassFileParser::verify_legal_class_modifiers(jint flags, TRAPS) { | |
4700 if (!_need_verify) { return; } | |
4701 | |
4702 const bool is_interface = (flags & JVM_ACC_INTERFACE) != 0; | |
4703 const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0; | |
4704 const bool is_final = (flags & JVM_ACC_FINAL) != 0; | |
4705 const bool is_super = (flags & JVM_ACC_SUPER) != 0; | |
4706 const bool is_enum = (flags & JVM_ACC_ENUM) != 0; | |
4707 const bool is_annotation = (flags & JVM_ACC_ANNOTATION) != 0; | |
4708 const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; | |
4709 | |
4710 if ((is_abstract && is_final) || | |
4711 (is_interface && !is_abstract) || | |
4712 (is_interface && major_gte_15 && (is_super || is_enum)) || | |
4713 (!is_interface && major_gte_15 && is_annotation)) { | |
4714 ResourceMark rm(THREAD); | |
4715 Exceptions::fthrow( | |
4716 THREAD_AND_LOCATION, | |
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|
4717 vmSymbols::java_lang_ClassFormatError(), |
0 | 4718 "Illegal class modifiers in class %s: 0x%X", |
4719 _class_name->as_C_string(), flags | |
4720 ); | |
4721 return; | |
4722 } | |
4723 } | |
4724 | |
4725 bool ClassFileParser::has_illegal_visibility(jint flags) { | |
4726 const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; | |
4727 const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; | |
4728 const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; | |
4729 | |
4730 return ((is_public && is_protected) || | |
4731 (is_public && is_private) || | |
4732 (is_protected && is_private)); | |
4733 } | |
4734 | |
4735 bool ClassFileParser::is_supported_version(u2 major, u2 minor) { | |
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2e8bdfdd3ba2
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977
diff
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|
4736 u2 max_version = |
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|
4737 JDK_Version::is_gte_jdk17x_version() ? JAVA_MAX_SUPPORTED_VERSION : |
2e8bdfdd3ba2
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|
4738 (JDK_Version::is_gte_jdk16x_version() ? JAVA_6_VERSION : JAVA_1_5_VERSION); |
0 | 4739 return (major >= JAVA_MIN_SUPPORTED_VERSION) && |
176
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|
4740 (major <= max_version) && |
6b648fefb395
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|
4741 ((major != max_version) || |
0 | 4742 (minor <= JAVA_MAX_SUPPORTED_MINOR_VERSION)); |
4743 } | |
4744 | |
4745 void ClassFileParser::verify_legal_field_modifiers( | |
4746 jint flags, bool is_interface, TRAPS) { | |
4747 if (!_need_verify) { return; } | |
4748 | |
4749 const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; | |
4750 const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; | |
4751 const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; | |
4752 const bool is_static = (flags & JVM_ACC_STATIC) != 0; | |
4753 const bool is_final = (flags & JVM_ACC_FINAL) != 0; | |
4754 const bool is_volatile = (flags & JVM_ACC_VOLATILE) != 0; | |
4755 const bool is_transient = (flags & JVM_ACC_TRANSIENT) != 0; | |
4756 const bool is_enum = (flags & JVM_ACC_ENUM) != 0; | |
4757 const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; | |
4758 | |
4759 bool is_illegal = false; | |
4760 | |
4761 if (is_interface) { | |
4762 if (!is_public || !is_static || !is_final || is_private || | |
4763 is_protected || is_volatile || is_transient || | |
4764 (major_gte_15 && is_enum)) { | |
4765 is_illegal = true; | |
4766 } | |
4767 } else { // not interface | |
4768 if (has_illegal_visibility(flags) || (is_final && is_volatile)) { | |
4769 is_illegal = true; | |
4770 } | |
4771 } | |
4772 | |
4773 if (is_illegal) { | |
4774 ResourceMark rm(THREAD); | |
4775 Exceptions::fthrow( | |
4776 THREAD_AND_LOCATION, | |
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|
4777 vmSymbols::java_lang_ClassFormatError(), |
0 | 4778 "Illegal field modifiers in class %s: 0x%X", |
4779 _class_name->as_C_string(), flags); | |
4780 return; | |
4781 } | |
4782 } | |
4783 | |
4784 void ClassFileParser::verify_legal_method_modifiers( | |
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4785 jint flags, bool is_interface, Symbol* name, TRAPS) { |
0 | 4786 if (!_need_verify) { return; } |
4787 | |
4788 const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; | |
4789 const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; | |
4790 const bool is_static = (flags & JVM_ACC_STATIC) != 0; | |
4791 const bool is_final = (flags & JVM_ACC_FINAL) != 0; | |
4792 const bool is_native = (flags & JVM_ACC_NATIVE) != 0; | |
4793 const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0; | |
4794 const bool is_bridge = (flags & JVM_ACC_BRIDGE) != 0; | |
4795 const bool is_strict = (flags & JVM_ACC_STRICT) != 0; | |
4796 const bool is_synchronized = (flags & JVM_ACC_SYNCHRONIZED) != 0; | |
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|
4797 const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; |
0 | 4798 const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; |
6934 | 4799 const bool major_gte_8 = _major_version >= JAVA_8_VERSION; |
0 | 4800 const bool is_initializer = (name == vmSymbols::object_initializer_name()); |
4801 | |
4802 bool is_illegal = false; | |
4803 | |
4804 if (is_interface) { | |
7579
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|
4805 if (major_gte_8) { |
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changeset
|
4806 // Class file version is JAVA_8_VERSION or later Methods of |
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|
4807 // interfaces may set any of the flags except ACC_PROTECTED, |
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|
4808 // ACC_FINAL, ACC_NATIVE, and ACC_SYNCHRONIZED; they must |
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changeset
|
4809 // have exactly one of the ACC_PUBLIC or ACC_PRIVATE flags set. |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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changeset
|
4810 if ((is_public == is_private) || /* Only one of private and public should be true - XNOR */ |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4811 (is_native || is_protected || is_final || is_synchronized) || |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4812 // If a specific method of a class or interface has its |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4813 // ACC_ABSTRACT flag set, it must not have any of its |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4814 // ACC_FINAL, ACC_NATIVE, ACC_PRIVATE, ACC_STATIC, |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4815 // ACC_STRICT, or ACC_SYNCHRONIZED flags set. No need to |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4816 // check for ACC_FINAL, ACC_NATIVE or ACC_SYNCHRONIZED as |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4817 // those flags are illegal irrespective of ACC_ABSTRACT being set or not. |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
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|
4818 (is_abstract && (is_private || is_static || is_strict))) { |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4819 is_illegal = true; |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
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|
4820 } |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
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|
4821 } else if (major_gte_15) { |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4822 // Class file version in the interval [JAVA_1_5_VERSION, JAVA_8_VERSION) |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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|
4823 if (!is_public || is_static || is_final || is_synchronized || |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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changeset
|
4824 is_native || !is_abstract || is_strict) { |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4825 is_illegal = true; |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4826 } |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4827 } else { |
adc176e95bf2
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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changeset
|
4828 // Class file version is pre-JAVA_1_5_VERSION |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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changeset
|
4829 if (!is_public || is_static || is_final || is_native || !is_abstract) { |
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8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
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diff
changeset
|
4830 is_illegal = true; |
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diff
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|
4831 } |
0 | 4832 } |
4833 } else { // not interface | |
4834 if (is_initializer) { | |
4835 if (is_static || is_final || is_synchronized || is_native || | |
4836 is_abstract || (major_gte_15 && is_bridge)) { | |
4837 is_illegal = true; | |
4838 } | |
4839 } else { // not initializer | |
4840 if (is_abstract) { | |
4841 if ((is_final || is_native || is_private || is_static || | |
4842 (major_gte_15 && (is_synchronized || is_strict)))) { | |
4843 is_illegal = true; | |
4844 } | |
4845 } | |
4846 if (has_illegal_visibility(flags)) { | |
4847 is_illegal = true; | |
4848 } | |
4849 } | |
4850 } | |
4851 | |
4852 if (is_illegal) { | |
4853 ResourceMark rm(THREAD); | |
4854 Exceptions::fthrow( | |
4855 THREAD_AND_LOCATION, | |
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|
4856 vmSymbols::java_lang_ClassFormatError(), |
0 | 4857 "Method %s in class %s has illegal modifiers: 0x%X", |
4858 name->as_C_string(), _class_name->as_C_string(), flags); | |
4859 return; | |
4860 } | |
4861 } | |
4862 | |
4863 void ClassFileParser::verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) { | |
4864 assert(_need_verify, "only called when _need_verify is true"); | |
4865 int i = 0; | |
4866 int count = length >> 2; | |
4867 for (int k=0; k<count; k++) { | |
4868 unsigned char b0 = buffer[i]; | |
4869 unsigned char b1 = buffer[i+1]; | |
4870 unsigned char b2 = buffer[i+2]; | |
4871 unsigned char b3 = buffer[i+3]; | |
4872 // For an unsigned char v, | |
4873 // (v | v - 1) is < 128 (highest bit 0) for 0 < v < 128; | |
4874 // (v | v - 1) is >= 128 (highest bit 1) for v == 0 or v >= 128. | |
4875 unsigned char res = b0 | b0 - 1 | | |
4876 b1 | b1 - 1 | | |
4877 b2 | b2 - 1 | | |
4878 b3 | b3 - 1; | |
4879 if (res >= 128) break; | |
4880 i += 4; | |
4881 } | |
4882 for(; i < length; i++) { | |
4883 unsigned short c; | |
4884 // no embedded zeros | |
4885 guarantee_property((buffer[i] != 0), "Illegal UTF8 string in constant pool in class file %s", CHECK); | |
4886 if(buffer[i] < 128) { | |
4887 continue; | |
4888 } | |
4889 if ((i + 5) < length) { // see if it's legal supplementary character | |
4890 if (UTF8::is_supplementary_character(&buffer[i])) { | |
4891 c = UTF8::get_supplementary_character(&buffer[i]); | |
4892 i += 5; | |
4893 continue; | |
4894 } | |
4895 } | |
4896 switch (buffer[i] >> 4) { | |
4897 default: break; | |
4898 case 0x8: case 0x9: case 0xA: case 0xB: case 0xF: | |
4899 classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); | |
4900 case 0xC: case 0xD: // 110xxxxx 10xxxxxx | |
4901 c = (buffer[i] & 0x1F) << 6; | |
4902 i++; | |
4903 if ((i < length) && ((buffer[i] & 0xC0) == 0x80)) { | |
4904 c += buffer[i] & 0x3F; | |
4905 if (_major_version <= 47 || c == 0 || c >= 0x80) { | |
4906 // for classes with major > 47, c must a null or a character in its shortest form | |
4907 break; | |
4908 } | |
4909 } | |
4910 classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); | |
4911 case 0xE: // 1110xxxx 10xxxxxx 10xxxxxx | |
4912 c = (buffer[i] & 0xF) << 12; | |
4913 i += 2; | |
4914 if ((i < length) && ((buffer[i-1] & 0xC0) == 0x80) && ((buffer[i] & 0xC0) == 0x80)) { | |
4915 c += ((buffer[i-1] & 0x3F) << 6) + (buffer[i] & 0x3F); | |
4916 if (_major_version <= 47 || c >= 0x800) { | |
4917 // for classes with major > 47, c must be in its shortest form | |
4918 break; | |
4919 } | |
4920 } | |
4921 classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); | |
4922 } // end of switch | |
4923 } // end of for | |
4924 } | |
4925 | |
4926 // Checks if name is a legal class name. | |
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4927 void ClassFileParser::verify_legal_class_name(Symbol* name, TRAPS) { |
0 | 4928 if (!_need_verify || _relax_verify) { return; } |
4929 | |
4930 char buf[fixed_buffer_size]; | |
4931 char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); | |
4932 unsigned int length = name->utf8_length(); | |
4933 bool legal = false; | |
4934 | |
4935 if (length > 0) { | |
4936 char* p; | |
4937 if (bytes[0] == JVM_SIGNATURE_ARRAY) { | |
4938 p = skip_over_field_signature(bytes, false, length, CHECK); | |
4939 legal = (p != NULL) && ((p - bytes) == (int)length); | |
4940 } else if (_major_version < JAVA_1_5_VERSION) { | |
4941 if (bytes[0] != '<') { | |
4942 p = skip_over_field_name(bytes, true, length); | |
4943 legal = (p != NULL) && ((p - bytes) == (int)length); | |
4944 } | |
4945 } else { | |
4946 // 4900761: relax the constraints based on JSR202 spec | |
4947 // Class names may be drawn from the entire Unicode character set. | |
4948 // Identifiers between '/' must be unqualified names. | |
4949 // The utf8 string has been verified when parsing cpool entries. | |
4950 legal = verify_unqualified_name(bytes, length, LegalClass); | |
4951 } | |
4952 } | |
4953 if (!legal) { | |
4954 ResourceMark rm(THREAD); | |
4955 Exceptions::fthrow( | |
4956 THREAD_AND_LOCATION, | |
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|
4957 vmSymbols::java_lang_ClassFormatError(), |
0 | 4958 "Illegal class name \"%s\" in class file %s", bytes, |
4959 _class_name->as_C_string() | |
4960 ); | |
4961 return; | |
4962 } | |
4963 } | |
4964 | |
4965 // Checks if name is a legal field name. | |
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4966 void ClassFileParser::verify_legal_field_name(Symbol* name, TRAPS) { |
0 | 4967 if (!_need_verify || _relax_verify) { return; } |
4968 | |
4969 char buf[fixed_buffer_size]; | |
4970 char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); | |
4971 unsigned int length = name->utf8_length(); | |
4972 bool legal = false; | |
4973 | |
4974 if (length > 0) { | |
4975 if (_major_version < JAVA_1_5_VERSION) { | |
4976 if (bytes[0] != '<') { | |
4977 char* p = skip_over_field_name(bytes, false, length); | |
4978 legal = (p != NULL) && ((p - bytes) == (int)length); | |
4979 } | |
4980 } else { | |
4981 // 4881221: relax the constraints based on JSR202 spec | |
4982 legal = verify_unqualified_name(bytes, length, LegalField); | |
4983 } | |
4984 } | |
4985 | |
4986 if (!legal) { | |
4987 ResourceMark rm(THREAD); | |
4988 Exceptions::fthrow( | |
4989 THREAD_AND_LOCATION, | |
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4990 vmSymbols::java_lang_ClassFormatError(), |
0 | 4991 "Illegal field name \"%s\" in class %s", bytes, |
4992 _class_name->as_C_string() | |
4993 ); | |
4994 return; | |
4995 } | |
4996 } | |
4997 | |
4998 // Checks if name is a legal method name. | |
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4999 void ClassFileParser::verify_legal_method_name(Symbol* name, TRAPS) { |
0 | 5000 if (!_need_verify || _relax_verify) { return; } |
5001 | |
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5002 assert(name != NULL, "method name is null"); |
0 | 5003 char buf[fixed_buffer_size]; |
5004 char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); | |
5005 unsigned int length = name->utf8_length(); | |
5006 bool legal = false; | |
5007 | |
5008 if (length > 0) { | |
5009 if (bytes[0] == '<') { | |
5010 if (name == vmSymbols::object_initializer_name() || name == vmSymbols::class_initializer_name()) { | |
5011 legal = true; | |
5012 } | |
5013 } else if (_major_version < JAVA_1_5_VERSION) { | |
5014 char* p; | |
5015 p = skip_over_field_name(bytes, false, length); | |
5016 legal = (p != NULL) && ((p - bytes) == (int)length); | |
5017 } else { | |
5018 // 4881221: relax the constraints based on JSR202 spec | |
5019 legal = verify_unqualified_name(bytes, length, LegalMethod); | |
5020 } | |
5021 } | |
5022 | |
5023 if (!legal) { | |
5024 ResourceMark rm(THREAD); | |
5025 Exceptions::fthrow( | |
5026 THREAD_AND_LOCATION, | |
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5027 vmSymbols::java_lang_ClassFormatError(), |
0 | 5028 "Illegal method name \"%s\" in class %s", bytes, |
5029 _class_name->as_C_string() | |
5030 ); | |
5031 return; | |
5032 } | |
5033 } | |
5034 | |
5035 | |
5036 // Checks if signature is a legal field signature. | |
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5037 void ClassFileParser::verify_legal_field_signature(Symbol* name, Symbol* signature, TRAPS) { |
0 | 5038 if (!_need_verify) { return; } |
5039 | |
5040 char buf[fixed_buffer_size]; | |
5041 char* bytes = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); | |
5042 unsigned int length = signature->utf8_length(); | |
5043 char* p = skip_over_field_signature(bytes, false, length, CHECK); | |
5044 | |
5045 if (p == NULL || (p - bytes) != (int)length) { | |
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5046 throwIllegalSignature("Field", name, signature, CHECK); |
0 | 5047 } |
5048 } | |
5049 | |
5050 // Checks if signature is a legal method signature. | |
5051 // Returns number of parameters | |
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5052 int ClassFileParser::verify_legal_method_signature(Symbol* name, Symbol* signature, TRAPS) { |
0 | 5053 if (!_need_verify) { |
5054 // make sure caller's args_size will be less than 0 even for non-static | |
5055 // method so it will be recomputed in compute_size_of_parameters(). | |
5056 return -2; | |
5057 } | |
5058 | |
5059 unsigned int args_size = 0; | |
5060 char buf[fixed_buffer_size]; | |
5061 char* p = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); | |
5062 unsigned int length = signature->utf8_length(); | |
5063 char* nextp; | |
5064 | |
5065 // The first character must be a '(' | |
5066 if ((length > 0) && (*p++ == JVM_SIGNATURE_FUNC)) { | |
5067 length--; | |
5068 // Skip over legal field signatures | |
5069 nextp = skip_over_field_signature(p, false, length, CHECK_0); | |
5070 while ((length > 0) && (nextp != NULL)) { | |
5071 args_size++; | |
5072 if (p[0] == 'J' || p[0] == 'D') { | |
5073 args_size++; | |
5074 } | |
5075 length -= nextp - p; | |
5076 p = nextp; | |
5077 nextp = skip_over_field_signature(p, false, length, CHECK_0); | |
5078 } | |
5079 // The first non-signature thing better be a ')' | |
5080 if ((length > 0) && (*p++ == JVM_SIGNATURE_ENDFUNC)) { | |
5081 length--; | |
5082 if (name->utf8_length() > 0 && name->byte_at(0) == '<') { | |
5083 // All internal methods must return void | |
5084 if ((length == 1) && (p[0] == JVM_SIGNATURE_VOID)) { | |
5085 return args_size; | |
5086 } | |
5087 } else { | |
5088 // Now we better just have a return value | |
5089 nextp = skip_over_field_signature(p, true, length, CHECK_0); | |
5090 if (nextp && ((int)length == (nextp - p))) { | |
5091 return args_size; | |
5092 } | |
5093 } | |
5094 } | |
5095 } | |
5096 // Report error | |
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5097 throwIllegalSignature("Method", name, signature, CHECK_0); |
0 | 5098 return 0; |
5099 } | |
5100 | |
5101 | |
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5102 // Unqualified names may not contain the characters '.', ';', '[', or '/'. |
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5103 // Method names also may not contain the characters '<' or '>', unless <init> |
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5104 // or <clinit>. Note that method names may not be <init> or <clinit> in this |
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5105 // method. Because these names have been checked as special cases before |
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5106 // calling this method in verify_legal_method_name. |
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5107 bool ClassFileParser::verify_unqualified_name( |
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5108 char* name, unsigned int length, int type) { |
0 | 5109 jchar ch; |
5110 | |
5111 for (char* p = name; p != name + length; ) { | |
5112 ch = *p; | |
5113 if (ch < 128) { | |
5114 p++; | |
1881
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5115 if (ch == '.' || ch == ';' || ch == '[' ) { |
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5116 return false; // do not permit '.', ';', or '[' |
0 | 5117 } |
5118 if (type != LegalClass && ch == '/') { | |
5119 return false; // do not permit '/' unless it's class name | |
5120 } | |
5121 if (type == LegalMethod && (ch == '<' || ch == '>')) { | |
5122 return false; // do not permit '<' or '>' in method names | |
5123 } | |
5124 } else { | |
5125 char* tmp_p = UTF8::next(p, &ch); | |
5126 p = tmp_p; | |
5127 } | |
5128 } | |
5129 return true; | |
5130 } | |
5131 | |
5132 | |
5133 // Take pointer to a string. Skip over the longest part of the string that could | |
5134 // be taken as a fieldname. Allow '/' if slash_ok is true. | |
5135 // Return a pointer to just past the fieldname. | |
5136 // Return NULL if no fieldname at all was found, or in the case of slash_ok | |
5137 // being true, we saw consecutive slashes (meaning we were looking for a | |
5138 // qualified path but found something that was badly-formed). | |
5139 char* ClassFileParser::skip_over_field_name(char* name, bool slash_ok, unsigned int length) { | |
5140 char* p; | |
5141 jchar ch; | |
5142 jboolean last_is_slash = false; | |
5143 jboolean not_first_ch = false; | |
5144 | |
5145 for (p = name; p != name + length; not_first_ch = true) { | |
5146 char* old_p = p; | |
5147 ch = *p; | |
5148 if (ch < 128) { | |
5149 p++; | |
5150 // quick check for ascii | |
5151 if ((ch >= 'a' && ch <= 'z') || | |
5152 (ch >= 'A' && ch <= 'Z') || | |
5153 (ch == '_' || ch == '$') || | |
5154 (not_first_ch && ch >= '0' && ch <= '9')) { | |
5155 last_is_slash = false; | |
5156 continue; | |
5157 } | |
5158 if (slash_ok && ch == '/') { | |
5159 if (last_is_slash) { | |
5160 return NULL; // Don't permit consecutive slashes | |
5161 } | |
5162 last_is_slash = true; | |
5163 continue; | |
5164 } | |
5165 } else { | |
5166 jint unicode_ch; | |
5167 char* tmp_p = UTF8::next_character(p, &unicode_ch); | |
5168 p = tmp_p; | |
5169 last_is_slash = false; | |
5170 // Check if ch is Java identifier start or is Java identifier part | |
5171 // 4672820: call java.lang.Character methods directly without generating separate tables. | |
5172 EXCEPTION_MARK; | |
1142 | 5173 instanceKlassHandle klass (THREAD, SystemDictionary::Character_klass()); |
0 | 5174 |
5175 // return value | |
5176 JavaValue result(T_BOOLEAN); | |
5177 // Set up the arguments to isJavaIdentifierStart and isJavaIdentifierPart | |
5178 JavaCallArguments args; | |
5179 args.push_int(unicode_ch); | |
5180 | |
5181 // public static boolean isJavaIdentifierStart(char ch); | |
5182 JavaCalls::call_static(&result, | |
5183 klass, | |
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5184 vmSymbols::isJavaIdentifierStart_name(), |
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5185 vmSymbols::int_bool_signature(), |
0 | 5186 &args, |
5187 THREAD); | |
5188 | |
5189 if (HAS_PENDING_EXCEPTION) { | |
5190 CLEAR_PENDING_EXCEPTION; | |
5191 return 0; | |
5192 } | |
5193 if (result.get_jboolean()) { | |
5194 continue; | |
5195 } | |
5196 | |
5197 if (not_first_ch) { | |
5198 // public static boolean isJavaIdentifierPart(char ch); | |
5199 JavaCalls::call_static(&result, | |
5200 klass, | |
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5201 vmSymbols::isJavaIdentifierPart_name(), |
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5202 vmSymbols::int_bool_signature(), |
0 | 5203 &args, |
5204 THREAD); | |
5205 | |
5206 if (HAS_PENDING_EXCEPTION) { | |
5207 CLEAR_PENDING_EXCEPTION; | |
5208 return 0; | |
5209 } | |
5210 | |
5211 if (result.get_jboolean()) { | |
5212 continue; | |
5213 } | |
5214 } | |
5215 } | |
5216 return (not_first_ch) ? old_p : NULL; | |
5217 } | |
5218 return (not_first_ch) ? p : NULL; | |
5219 } | |
5220 | |
5221 | |
5222 // Take pointer to a string. Skip over the longest part of the string that could | |
5223 // be taken as a field signature. Allow "void" if void_ok. | |
5224 // Return a pointer to just past the signature. | |
5225 // Return NULL if no legal signature is found. | |
5226 char* ClassFileParser::skip_over_field_signature(char* signature, | |
5227 bool void_ok, | |
5228 unsigned int length, | |
5229 TRAPS) { | |
5230 unsigned int array_dim = 0; | |
5231 while (length > 0) { | |
5232 switch (signature[0]) { | |
5233 case JVM_SIGNATURE_VOID: if (!void_ok) { return NULL; } | |
5234 case JVM_SIGNATURE_BOOLEAN: | |
5235 case JVM_SIGNATURE_BYTE: | |
5236 case JVM_SIGNATURE_CHAR: | |
5237 case JVM_SIGNATURE_SHORT: | |
5238 case JVM_SIGNATURE_INT: | |
5239 case JVM_SIGNATURE_FLOAT: | |
5240 case JVM_SIGNATURE_LONG: | |
5241 case JVM_SIGNATURE_DOUBLE: | |
5242 return signature + 1; | |
5243 case JVM_SIGNATURE_CLASS: { | |
5244 if (_major_version < JAVA_1_5_VERSION) { | |
5245 // Skip over the class name if one is there | |
5246 char* p = skip_over_field_name(signature + 1, true, --length); | |
5247 | |
5248 // The next character better be a semicolon | |
5249 if (p && (p - signature) > 1 && p[0] == ';') { | |
5250 return p + 1; | |
5251 } | |
5252 } else { | |
5253 // 4900761: For class version > 48, any unicode is allowed in class name. | |
5254 length--; | |
5255 signature++; | |
5256 while (length > 0 && signature[0] != ';') { | |
5257 if (signature[0] == '.') { | |
5258 classfile_parse_error("Class name contains illegal character '.' in descriptor in class file %s", CHECK_0); | |
5259 } | |
5260 length--; | |
5261 signature++; | |
5262 } | |
5263 if (signature[0] == ';') { return signature + 1; } | |
5264 } | |
5265 | |
5266 return NULL; | |
5267 } | |
5268 case JVM_SIGNATURE_ARRAY: | |
5269 array_dim++; | |
5270 if (array_dim > 255) { | |
5271 // 4277370: array descriptor is valid only if it represents 255 or fewer dimensions. | |
5272 classfile_parse_error("Array type descriptor has more than 255 dimensions in class file %s", CHECK_0); | |
5273 } | |
5274 // The rest of what's there better be a legal signature | |
5275 signature++; | |
5276 length--; | |
5277 void_ok = false; | |
5278 break; | |
5279 | |
5280 default: | |
5281 return NULL; | |
5282 } | |
5283 } | |
5284 return NULL; | |
5285 } |