Wed, 13 Mar 2013 09:10:35 -0400
8009836: nsk/regression/b4222717 fails with empty stack trace
Summary: Some zeroing was missed for bug 8003553, causing empty stack traces and Xcom crashes, add back zeroing to metablock
Reviewed-by: dholmes, rbackman
duke@435 | 1 | /* |
acorn@4497 | 2 | * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
coleenp@4037 | 26 | #include "interpreter/interpreter.hpp" |
coleenp@4037 | 27 | #include "memory/gcLocker.hpp" |
acorn@4497 | 28 | #include "memory/heapInspection.hpp" |
coleenp@4037 | 29 | #include "memory/metadataFactory.hpp" |
coleenp@4037 | 30 | #include "oops/constMethod.hpp" |
coleenp@4037 | 31 | #include "oops/method.hpp" |
duke@435 | 32 | |
duke@435 | 33 | // Static initialization |
coleenp@4037 | 34 | const u2 ConstMethod::MAX_IDNUM = 0xFFFE; |
coleenp@4037 | 35 | const u2 ConstMethod::UNSET_IDNUM = 0xFFFF; |
coleenp@4037 | 36 | |
coleenp@4037 | 37 | ConstMethod* ConstMethod::allocate(ClassLoaderData* loader_data, |
kamg@4245 | 38 | int byte_code_size, |
coleenp@4572 | 39 | InlineTableSizes* sizes, |
kamg@4245 | 40 | MethodType method_type, |
kamg@4245 | 41 | TRAPS) { |
coleenp@4572 | 42 | int size = ConstMethod::size(byte_code_size, sizes); |
coleenp@4037 | 43 | return new (loader_data, size, true, THREAD) ConstMethod( |
coleenp@4572 | 44 | byte_code_size, sizes, method_type, size); |
coleenp@4037 | 45 | } |
coleenp@4037 | 46 | |
coleenp@4037 | 47 | ConstMethod::ConstMethod(int byte_code_size, |
coleenp@4572 | 48 | InlineTableSizes* sizes, |
kamg@4245 | 49 | MethodType method_type, |
kamg@4245 | 50 | int size) { |
coleenp@4037 | 51 | |
coleenp@4037 | 52 | No_Safepoint_Verifier no_safepoint; |
coleenp@4037 | 53 | init_fingerprint(); |
coleenp@4037 | 54 | set_constants(NULL); |
coleenp@4037 | 55 | set_stackmap_data(NULL); |
coleenp@4037 | 56 | set_code_size(byte_code_size); |
coleenp@4037 | 57 | set_constMethod_size(size); |
coleenp@4715 | 58 | set_inlined_tables_length(sizes); // sets _flags |
kamg@4245 | 59 | set_method_type(method_type); |
coleenp@4037 | 60 | assert(this->size() == size, "wrong size for object"); |
coleenp@4712 | 61 | set_name_index(0); |
coleenp@4712 | 62 | set_signature_index(0); |
coleenp@4712 | 63 | set_constants(NULL); |
coleenp@4712 | 64 | set_max_stack(0); |
coleenp@4712 | 65 | set_max_locals(0); |
coleenp@4712 | 66 | set_method_idnum(0); |
coleenp@4715 | 67 | set_size_of_parameters(0); |
coleenp@4037 | 68 | } |
coleenp@4037 | 69 | |
coleenp@4037 | 70 | |
coleenp@4037 | 71 | // Deallocate metadata fields associated with ConstMethod* |
coleenp@4037 | 72 | void ConstMethod::deallocate_contents(ClassLoaderData* loader_data) { |
coleenp@4037 | 73 | if (stackmap_data() != NULL) { |
coleenp@4037 | 74 | MetadataFactory::free_array<u1>(loader_data, stackmap_data()); |
coleenp@4037 | 75 | } |
coleenp@4037 | 76 | set_stackmap_data(NULL); |
coleenp@4572 | 77 | |
coleenp@4572 | 78 | // deallocate annotation arrays |
coleenp@4572 | 79 | if (has_method_annotations()) |
coleenp@4572 | 80 | MetadataFactory::free_array<u1>(loader_data, method_annotations()); |
coleenp@4572 | 81 | if (has_parameter_annotations()) |
coleenp@4572 | 82 | MetadataFactory::free_array<u1>(loader_data, parameter_annotations()); |
coleenp@4572 | 83 | if (has_type_annotations()) |
coleenp@4572 | 84 | MetadataFactory::free_array<u1>(loader_data, type_annotations()); |
coleenp@4572 | 85 | if (has_default_annotations()) |
coleenp@4572 | 86 | MetadataFactory::free_array<u1>(loader_data, default_annotations()); |
coleenp@4037 | 87 | } |
duke@435 | 88 | |
duke@435 | 89 | // How big must this constMethodObject be? |
duke@435 | 90 | |
coleenp@4037 | 91 | int ConstMethod::size(int code_size, |
coleenp@4572 | 92 | InlineTableSizes* sizes) { |
duke@435 | 93 | int extra_bytes = code_size; |
coleenp@4572 | 94 | if (sizes->compressed_linenumber_size() > 0) { |
coleenp@4572 | 95 | extra_bytes += sizes->compressed_linenumber_size(); |
duke@435 | 96 | } |
coleenp@4572 | 97 | if (sizes->checked_exceptions_length() > 0) { |
duke@435 | 98 | extra_bytes += sizeof(u2); |
coleenp@4572 | 99 | extra_bytes += sizes->checked_exceptions_length() * sizeof(CheckedExceptionElement); |
duke@435 | 100 | } |
coleenp@4572 | 101 | if (sizes->localvariable_table_length() > 0) { |
duke@435 | 102 | extra_bytes += sizeof(u2); |
duke@435 | 103 | extra_bytes += |
coleenp@4572 | 104 | sizes->localvariable_table_length() * sizeof(LocalVariableTableElement); |
duke@435 | 105 | } |
coleenp@4572 | 106 | if (sizes->exception_table_length() > 0) { |
jiangli@3917 | 107 | extra_bytes += sizeof(u2); |
coleenp@4572 | 108 | extra_bytes += sizes->exception_table_length() * sizeof(ExceptionTableElement); |
jiangli@3917 | 109 | } |
coleenp@4572 | 110 | if (sizes->generic_signature_index() != 0) { |
jiangli@4302 | 111 | extra_bytes += sizeof(u2); |
jiangli@4302 | 112 | } |
coleenp@4572 | 113 | if (sizes->method_parameters_length() > 0) { |
coleenp@4398 | 114 | extra_bytes += sizeof(u2); |
coleenp@4572 | 115 | extra_bytes += sizes->method_parameters_length() * sizeof(MethodParametersElement); |
coleenp@4398 | 116 | } |
coleenp@4572 | 117 | |
coleenp@4572 | 118 | // Align sizes up to a word. |
coleenp@4572 | 119 | extra_bytes = align_size_up(extra_bytes, BytesPerWord); |
coleenp@4572 | 120 | |
coleenp@4572 | 121 | // One pointer per annotation array |
coleenp@4572 | 122 | if (sizes->method_annotations_length() > 0) { |
coleenp@4572 | 123 | extra_bytes += sizeof(AnnotationArray*); |
coleenp@4572 | 124 | } |
coleenp@4572 | 125 | if (sizes->parameter_annotations_length() > 0) { |
coleenp@4572 | 126 | extra_bytes += sizeof(AnnotationArray*); |
coleenp@4572 | 127 | } |
coleenp@4572 | 128 | if (sizes->type_annotations_length() > 0) { |
coleenp@4572 | 129 | extra_bytes += sizeof(AnnotationArray*); |
coleenp@4572 | 130 | } |
coleenp@4572 | 131 | if (sizes->default_annotations_length() > 0) { |
coleenp@4572 | 132 | extra_bytes += sizeof(AnnotationArray*); |
coleenp@4572 | 133 | } |
coleenp@4572 | 134 | |
duke@435 | 135 | int extra_words = align_size_up(extra_bytes, BytesPerWord) / BytesPerWord; |
coleenp@4572 | 136 | assert(extra_words == extra_bytes/BytesPerWord, "should already be aligned"); |
duke@435 | 137 | return align_object_size(header_size() + extra_words); |
duke@435 | 138 | } |
duke@435 | 139 | |
coleenp@4037 | 140 | Method* ConstMethod::method() const { |
coleenp@4251 | 141 | return _constants->pool_holder()->method_with_idnum(_method_idnum); |
jiangli@3826 | 142 | } |
duke@435 | 143 | |
duke@435 | 144 | // linenumber table - note that length is unknown until decompression, |
duke@435 | 145 | // see class CompressedLineNumberReadStream. |
duke@435 | 146 | |
coleenp@4037 | 147 | u_char* ConstMethod::compressed_linenumber_table() const { |
duke@435 | 148 | // Located immediately following the bytecodes. |
duke@435 | 149 | assert(has_linenumber_table(), "called only if table is present"); |
duke@435 | 150 | return code_end(); |
duke@435 | 151 | } |
duke@435 | 152 | |
coleenp@4572 | 153 | // Last short in ConstMethod* before annotations |
coleenp@4572 | 154 | u2* ConstMethod::last_u2_element() const { |
coleenp@4572 | 155 | int offset = 0; |
coleenp@4572 | 156 | if (has_method_annotations()) offset++; |
coleenp@4572 | 157 | if (has_parameter_annotations()) offset++; |
coleenp@4572 | 158 | if (has_type_annotations()) offset++; |
coleenp@4572 | 159 | if (has_default_annotations()) offset++; |
coleenp@4572 | 160 | return (u2*)((AnnotationArray**)constMethod_end() - offset) - 1; |
coleenp@4572 | 161 | } |
coleenp@4572 | 162 | |
jiangli@4302 | 163 | u2* ConstMethod::generic_signature_index_addr() const { |
jiangli@4302 | 164 | // Located at the end of the constMethod. |
jiangli@4302 | 165 | assert(has_generic_signature(), "called only if generic signature exists"); |
jiangli@4302 | 166 | return last_u2_element(); |
jiangli@4302 | 167 | } |
jiangli@4302 | 168 | |
coleenp@4572 | 169 | u2* ConstMethod::method_parameters_length_addr() const { |
coleenp@4572 | 170 | assert(has_method_parameters(), "called only if table is present"); |
coleenp@4572 | 171 | return has_generic_signature() ? (last_u2_element() - 1) : |
coleenp@4572 | 172 | last_u2_element(); |
coleenp@4572 | 173 | } |
coleenp@4572 | 174 | |
coleenp@4037 | 175 | u2* ConstMethod::checked_exceptions_length_addr() const { |
jiangli@4302 | 176 | // Located immediately before the generic signature index. |
duke@435 | 177 | assert(has_checked_exceptions(), "called only if table is present"); |
coleenp@4398 | 178 | if(has_method_parameters()) { |
coleenp@4398 | 179 | // If method parameters present, locate immediately before them. |
coleenp@4398 | 180 | return (u2*)method_parameters_start() - 1; |
coleenp@4398 | 181 | } else { |
coleenp@4398 | 182 | // Else, the exception table is at the end of the constMethod. |
coleenp@4398 | 183 | return has_generic_signature() ? (last_u2_element() - 1) : |
coleenp@4398 | 184 | last_u2_element(); |
coleenp@4398 | 185 | } |
coleenp@4398 | 186 | } |
coleenp@4398 | 187 | |
coleenp@4037 | 188 | u2* ConstMethod::exception_table_length_addr() const { |
jiangli@3917 | 189 | assert(has_exception_handler(), "called only if table is present"); |
duke@435 | 190 | if (has_checked_exceptions()) { |
duke@435 | 191 | // If checked_exception present, locate immediately before them. |
duke@435 | 192 | return (u2*) checked_exceptions_start() - 1; |
duke@435 | 193 | } else { |
coleenp@4398 | 194 | if(has_method_parameters()) { |
coleenp@4398 | 195 | // If method parameters present, locate immediately before them. |
coleenp@4398 | 196 | return (u2*)method_parameters_start() - 1; |
coleenp@4398 | 197 | } else { |
coleenp@4398 | 198 | // Else, the exception table is at the end of the constMethod. |
coleenp@4572 | 199 | return has_generic_signature() ? (last_u2_element() - 1) : |
coleenp@4572 | 200 | last_u2_element(); |
coleenp@4572 | 201 | } |
coleenp@4398 | 202 | } |
duke@435 | 203 | } |
duke@435 | 204 | |
coleenp@4037 | 205 | u2* ConstMethod::localvariable_table_length_addr() const { |
jiangli@3917 | 206 | assert(has_localvariable_table(), "called only if table is present"); |
jiangli@3917 | 207 | if (has_exception_handler()) { |
jiangli@3917 | 208 | // If exception_table present, locate immediately before them. |
jiangli@3917 | 209 | return (u2*) exception_table_start() - 1; |
jiangli@3917 | 210 | } else { |
jiangli@3917 | 211 | if (has_checked_exceptions()) { |
jiangli@3917 | 212 | // If checked_exception present, locate immediately before them. |
jiangli@3917 | 213 | return (u2*) checked_exceptions_start() - 1; |
jiangli@3917 | 214 | } else { |
coleenp@4398 | 215 | if(has_method_parameters()) { |
coleenp@4398 | 216 | // If method parameters present, locate immediately before them. |
coleenp@4398 | 217 | return (u2*)method_parameters_start() - 1; |
coleenp@4398 | 218 | } else { |
coleenp@4398 | 219 | // Else, the exception table is at the end of the constMethod. |
jiangli@4302 | 220 | return has_generic_signature() ? (last_u2_element() - 1) : |
jiangli@4302 | 221 | last_u2_element(); |
coleenp@4572 | 222 | } |
jiangli@3917 | 223 | } |
jiangli@3917 | 224 | } |
jiangli@3917 | 225 | } |
jiangli@3917 | 226 | |
duke@435 | 227 | // Update the flags to indicate the presence of these optional fields. |
coleenp@4572 | 228 | void ConstMethod::set_inlined_tables_length(InlineTableSizes* sizes) { |
coleenp@4572 | 229 | _flags = 0; |
coleenp@4572 | 230 | if (sizes->compressed_linenumber_size() > 0) |
duke@435 | 231 | _flags |= _has_linenumber_table; |
coleenp@4572 | 232 | if (sizes->generic_signature_index() != 0) |
jiangli@4302 | 233 | _flags |= _has_generic_signature; |
coleenp@4572 | 234 | if (sizes->method_parameters_length() > 0) |
coleenp@4398 | 235 | _flags |= _has_method_parameters; |
coleenp@4572 | 236 | if (sizes->checked_exceptions_length() > 0) |
coleenp@4398 | 237 | _flags |= _has_checked_exceptions; |
coleenp@4572 | 238 | if (sizes->exception_table_length() > 0) |
coleenp@4398 | 239 | _flags |= _has_exception_table; |
coleenp@4572 | 240 | if (sizes->localvariable_table_length() > 0) |
coleenp@4398 | 241 | _flags |= _has_localvariable_table; |
coleenp@4398 | 242 | |
coleenp@4572 | 243 | // annotations, they are all pointer sized embedded objects so don't have |
coleenp@4572 | 244 | // a length embedded also. |
coleenp@4572 | 245 | if (sizes->method_annotations_length() > 0) |
coleenp@4572 | 246 | _flags |= _has_method_annotations; |
coleenp@4572 | 247 | if (sizes->parameter_annotations_length() > 0) |
coleenp@4572 | 248 | _flags |= _has_parameter_annotations; |
coleenp@4572 | 249 | if (sizes->type_annotations_length() > 0) |
coleenp@4572 | 250 | _flags |= _has_type_annotations; |
coleenp@4572 | 251 | if (sizes->default_annotations_length() > 0) |
coleenp@4572 | 252 | _flags |= _has_default_annotations; |
coleenp@4572 | 253 | |
coleenp@4398 | 254 | // This code is extremely brittle and should possibly be revised. |
coleenp@4398 | 255 | // The *_length_addr functions walk backwards through the |
coleenp@4398 | 256 | // constMethod data, using each of the length indexes ahead of them, |
coleenp@4398 | 257 | // as well as the flags variable. Therefore, the indexes must be |
coleenp@4398 | 258 | // initialized in reverse order, or else they will compute the wrong |
coleenp@4398 | 259 | // offsets. Moving the initialization of _flags into a separate |
coleenp@4398 | 260 | // block solves *half* of the problem, but the following part will |
coleenp@4398 | 261 | // still break if the order is not exactly right. |
coleenp@4398 | 262 | // |
coleenp@4398 | 263 | // Also, the servicability agent needs to be informed anytime |
coleenp@4398 | 264 | // anything is added here. It might be advisable to have some sort |
coleenp@4398 | 265 | // of indication of this inline. |
coleenp@4572 | 266 | if (sizes->generic_signature_index() != 0) |
coleenp@4572 | 267 | *(generic_signature_index_addr()) = sizes->generic_signature_index(); |
coleenp@4398 | 268 | // New data should probably go here. |
coleenp@4572 | 269 | if (sizes->method_parameters_length() > 0) |
coleenp@4572 | 270 | *(method_parameters_length_addr()) = sizes->method_parameters_length(); |
coleenp@4572 | 271 | if (sizes->checked_exceptions_length() > 0) |
coleenp@4572 | 272 | *(checked_exceptions_length_addr()) = sizes->checked_exceptions_length(); |
coleenp@4572 | 273 | if (sizes->exception_table_length() > 0) |
coleenp@4572 | 274 | *(exception_table_length_addr()) = sizes->exception_table_length(); |
coleenp@4572 | 275 | if (sizes->localvariable_table_length() > 0) |
coleenp@4572 | 276 | *(localvariable_table_length_addr()) = sizes->localvariable_table_length(); |
coleenp@4398 | 277 | } |
coleenp@4398 | 278 | |
coleenp@4398 | 279 | int ConstMethod::method_parameters_length() const { |
coleenp@4398 | 280 | return has_method_parameters() ? *(method_parameters_length_addr()) : 0; |
coleenp@4398 | 281 | } |
coleenp@4398 | 282 | |
coleenp@4398 | 283 | MethodParametersElement* ConstMethod::method_parameters_start() const { |
coleenp@4398 | 284 | u2* addr = method_parameters_length_addr(); |
coleenp@4398 | 285 | u2 length = *addr; |
coleenp@4398 | 286 | assert(length > 0, "should only be called if table is present"); |
coleenp@4398 | 287 | addr -= length * sizeof(MethodParametersElement) / sizeof(u2); |
coleenp@4398 | 288 | return (MethodParametersElement*) addr; |
duke@435 | 289 | } |
duke@435 | 290 | |
duke@435 | 291 | |
coleenp@4037 | 292 | int ConstMethod::checked_exceptions_length() const { |
duke@435 | 293 | return has_checked_exceptions() ? *(checked_exceptions_length_addr()) : 0; |
duke@435 | 294 | } |
duke@435 | 295 | |
duke@435 | 296 | |
coleenp@4037 | 297 | CheckedExceptionElement* ConstMethod::checked_exceptions_start() const { |
duke@435 | 298 | u2* addr = checked_exceptions_length_addr(); |
duke@435 | 299 | u2 length = *addr; |
duke@435 | 300 | assert(length > 0, "should only be called if table is present"); |
duke@435 | 301 | addr -= length * sizeof(CheckedExceptionElement) / sizeof(u2); |
duke@435 | 302 | return (CheckedExceptionElement*) addr; |
duke@435 | 303 | } |
duke@435 | 304 | |
duke@435 | 305 | |
coleenp@4037 | 306 | int ConstMethod::localvariable_table_length() const { |
duke@435 | 307 | return has_localvariable_table() ? *(localvariable_table_length_addr()) : 0; |
duke@435 | 308 | } |
duke@435 | 309 | |
duke@435 | 310 | |
coleenp@4037 | 311 | LocalVariableTableElement* ConstMethod::localvariable_table_start() const { |
duke@435 | 312 | u2* addr = localvariable_table_length_addr(); |
duke@435 | 313 | u2 length = *addr; |
duke@435 | 314 | assert(length > 0, "should only be called if table is present"); |
duke@435 | 315 | addr -= length * sizeof(LocalVariableTableElement) / sizeof(u2); |
duke@435 | 316 | return (LocalVariableTableElement*) addr; |
duke@435 | 317 | } |
jiangli@3917 | 318 | |
coleenp@4037 | 319 | int ConstMethod::exception_table_length() const { |
jiangli@3917 | 320 | return has_exception_handler() ? *(exception_table_length_addr()) : 0; |
jiangli@3917 | 321 | } |
jiangli@3917 | 322 | |
coleenp@4037 | 323 | ExceptionTableElement* ConstMethod::exception_table_start() const { |
jiangli@3917 | 324 | u2* addr = exception_table_length_addr(); |
jiangli@3917 | 325 | u2 length = *addr; |
jiangli@3917 | 326 | assert(length > 0, "should only be called if table is present"); |
jiangli@3917 | 327 | addr -= length * sizeof(ExceptionTableElement) / sizeof(u2); |
jiangli@3917 | 328 | return (ExceptionTableElement*)addr; |
jiangli@3917 | 329 | } |
coleenp@4037 | 330 | |
coleenp@4572 | 331 | AnnotationArray** ConstMethod::method_annotations_addr() const { |
coleenp@4572 | 332 | assert(has_method_annotations(), "should only be called if method annotations are present"); |
coleenp@4572 | 333 | return (AnnotationArray**)constMethod_end() - 1; |
coleenp@4572 | 334 | } |
coleenp@4572 | 335 | |
coleenp@4572 | 336 | AnnotationArray** ConstMethod::parameter_annotations_addr() const { |
coleenp@4572 | 337 | assert(has_parameter_annotations(), "should only be called if method parameter annotations are present"); |
coleenp@4572 | 338 | int offset = 1; |
coleenp@4572 | 339 | if (has_method_annotations()) offset++; |
coleenp@4572 | 340 | return (AnnotationArray**)constMethod_end() - offset; |
coleenp@4572 | 341 | } |
coleenp@4572 | 342 | |
coleenp@4572 | 343 | AnnotationArray** ConstMethod::type_annotations_addr() const { |
coleenp@4572 | 344 | assert(has_type_annotations(), "should only be called if method type annotations are present"); |
coleenp@4572 | 345 | int offset = 1; |
coleenp@4572 | 346 | if (has_method_annotations()) offset++; |
coleenp@4572 | 347 | if (has_parameter_annotations()) offset++; |
coleenp@4572 | 348 | return (AnnotationArray**)constMethod_end() - offset; |
coleenp@4572 | 349 | } |
coleenp@4572 | 350 | |
coleenp@4572 | 351 | AnnotationArray** ConstMethod::default_annotations_addr() const { |
coleenp@4572 | 352 | assert(has_default_annotations(), "should only be called if method default annotations are present"); |
coleenp@4572 | 353 | int offset = 1; |
coleenp@4572 | 354 | if (has_method_annotations()) offset++; |
coleenp@4572 | 355 | if (has_parameter_annotations()) offset++; |
coleenp@4572 | 356 | if (has_type_annotations()) offset++; |
coleenp@4572 | 357 | return (AnnotationArray**)constMethod_end() - offset; |
coleenp@4572 | 358 | } |
coleenp@4037 | 359 | |
coleenp@4037 | 360 | // Printing |
coleenp@4037 | 361 | |
coleenp@4037 | 362 | void ConstMethod::print_on(outputStream* st) const { |
coleenp@4037 | 363 | ResourceMark rm; |
coleenp@4037 | 364 | assert(is_constMethod(), "must be constMethod"); |
coleenp@4037 | 365 | st->print_cr(internal_name()); |
coleenp@4037 | 366 | st->print(" - method: " INTPTR_FORMAT " ", (address)method()); |
coleenp@4037 | 367 | method()->print_value_on(st); st->cr(); |
coleenp@4037 | 368 | if (has_stackmap_table()) { |
coleenp@4037 | 369 | st->print(" - stackmap data: "); |
coleenp@4037 | 370 | stackmap_data()->print_value_on(st); |
coleenp@4037 | 371 | st->cr(); |
coleenp@4037 | 372 | } |
coleenp@4037 | 373 | } |
coleenp@4037 | 374 | |
coleenp@4037 | 375 | // Short version of printing ConstMethod* - just print the name of the |
coleenp@4037 | 376 | // method it belongs to. |
coleenp@4037 | 377 | void ConstMethod::print_value_on(outputStream* st) const { |
coleenp@4037 | 378 | assert(is_constMethod(), "must be constMethod"); |
coleenp@4037 | 379 | st->print(" const part of method " ); |
coleenp@4037 | 380 | method()->print_value_on(st); |
coleenp@4037 | 381 | } |
coleenp@4037 | 382 | |
acorn@4497 | 383 | #if INCLUDE_SERVICES |
acorn@4497 | 384 | // Size Statistics |
acorn@4497 | 385 | void ConstMethod::collect_statistics(KlassSizeStats *sz) const { |
acorn@4497 | 386 | int n1, n2, n3; |
acorn@4497 | 387 | sz->_const_method_bytes += (n1 = sz->count(this)); |
acorn@4497 | 388 | sz->_bytecode_bytes += (n2 = code_size()); |
acorn@4497 | 389 | sz->_stackmap_bytes += (n3 = sz->count_array(stackmap_data())); |
acorn@4497 | 390 | |
coleenp@4572 | 391 | // Count method annotations |
coleenp@4572 | 392 | int a1 = 0, a2 = 0, a3 = 0, a4 = 0; |
coleenp@4572 | 393 | if (has_method_annotations()) { |
coleenp@4572 | 394 | sz->_methods_annotations_bytes += (a1 = sz->count_array(method_annotations())); |
coleenp@4572 | 395 | } |
coleenp@4572 | 396 | if (has_parameter_annotations()) { |
coleenp@4572 | 397 | sz->_methods_parameter_annotations_bytes += (a2 = sz->count_array(parameter_annotations())); |
coleenp@4572 | 398 | } |
coleenp@4572 | 399 | if (has_type_annotations()) { |
coleenp@4572 | 400 | sz->_methods_type_annotations_bytes += (a3 = sz->count_array(type_annotations())); |
coleenp@4572 | 401 | } |
coleenp@4572 | 402 | if (has_default_annotations()) { |
coleenp@4572 | 403 | sz->_methods_default_annotations_bytes += (a4 = sz->count_array(default_annotations())); |
coleenp@4572 | 404 | } |
coleenp@4572 | 405 | |
coleenp@4572 | 406 | int size_annotations = a1 + a2 + a3 + a4; |
coleenp@4572 | 407 | |
coleenp@4572 | 408 | sz->_method_all_bytes += n1 + n3 + size_annotations; // note: n2 is part of n3 |
coleenp@4572 | 409 | sz->_ro_bytes += n1 + n3 + size_annotations; |
acorn@4497 | 410 | } |
acorn@4497 | 411 | #endif // INCLUDE_SERVICES |
coleenp@4037 | 412 | |
coleenp@4037 | 413 | // Verification |
coleenp@4037 | 414 | |
coleenp@4037 | 415 | void ConstMethod::verify_on(outputStream* st) { |
coleenp@4037 | 416 | guarantee(is_constMethod(), "object must be constMethod"); |
coleenp@4037 | 417 | guarantee(is_metadata(), err_msg("Should be metadata " PTR_FORMAT, this)); |
coleenp@4037 | 418 | |
coleenp@4037 | 419 | // Verification can occur during oop construction before the method or |
coleenp@4037 | 420 | // other fields have been initialized. |
coleenp@4037 | 421 | guarantee(method()->is_method(), "should be method"); |
coleenp@4037 | 422 | |
coleenp@4572 | 423 | address m_end = (address)((intptr_t) this + size()); |
coleenp@4037 | 424 | address compressed_table_start = code_end(); |
coleenp@4037 | 425 | guarantee(compressed_table_start <= m_end, "invalid method layout"); |
coleenp@4037 | 426 | address compressed_table_end = compressed_table_start; |
coleenp@4037 | 427 | // Verify line number table |
coleenp@4037 | 428 | if (has_linenumber_table()) { |
coleenp@4037 | 429 | CompressedLineNumberReadStream stream(compressed_linenumber_table()); |
coleenp@4037 | 430 | while (stream.read_pair()) { |
coleenp@4037 | 431 | guarantee(stream.bci() >= 0 && stream.bci() <= code_size(), "invalid bci in line number table"); |
coleenp@4037 | 432 | } |
coleenp@4037 | 433 | compressed_table_end += stream.position(); |
coleenp@4037 | 434 | } |
coleenp@4037 | 435 | guarantee(compressed_table_end <= m_end, "invalid method layout"); |
coleenp@4037 | 436 | // Verify checked exceptions, exception table and local variable tables |
coleenp@4398 | 437 | if (has_method_parameters()) { |
coleenp@4398 | 438 | u2* addr = method_parameters_length_addr(); |
coleenp@4398 | 439 | guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); |
coleenp@4398 | 440 | } |
coleenp@4037 | 441 | if (has_checked_exceptions()) { |
coleenp@4037 | 442 | u2* addr = checked_exceptions_length_addr(); |
coleenp@4037 | 443 | guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); |
coleenp@4037 | 444 | } |
coleenp@4037 | 445 | if (has_exception_handler()) { |
coleenp@4037 | 446 | u2* addr = exception_table_length_addr(); |
coleenp@4037 | 447 | guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); |
coleenp@4037 | 448 | } |
coleenp@4037 | 449 | if (has_localvariable_table()) { |
coleenp@4037 | 450 | u2* addr = localvariable_table_length_addr(); |
coleenp@4037 | 451 | guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); |
coleenp@4037 | 452 | } |
coleenp@4037 | 453 | // Check compressed_table_end relative to uncompressed_table_start |
coleenp@4037 | 454 | u2* uncompressed_table_start; |
coleenp@4037 | 455 | if (has_localvariable_table()) { |
coleenp@4037 | 456 | uncompressed_table_start = (u2*) localvariable_table_start(); |
coleenp@4037 | 457 | } else if (has_exception_handler()) { |
coleenp@4037 | 458 | uncompressed_table_start = (u2*) exception_table_start(); |
coleenp@4037 | 459 | } else if (has_checked_exceptions()) { |
coleenp@4037 | 460 | uncompressed_table_start = (u2*) checked_exceptions_start(); |
coleenp@4398 | 461 | } else if (has_method_parameters()) { |
coleenp@4398 | 462 | uncompressed_table_start = (u2*) method_parameters_start(); |
coleenp@4037 | 463 | } else { |
coleenp@4037 | 464 | uncompressed_table_start = (u2*) m_end; |
coleenp@4037 | 465 | } |
coleenp@4037 | 466 | int gap = (intptr_t) uncompressed_table_start - (intptr_t) compressed_table_end; |
coleenp@4037 | 467 | int max_gap = align_object_size(1)*BytesPerWord; |
coleenp@4037 | 468 | guarantee(gap >= 0 && gap < max_gap, "invalid method layout"); |
coleenp@4037 | 469 | } |