constMethod.cpp revision 8413:92457dfb91bd
1227569Sphilip/* 2301388Sarybchik * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. 3284555Sarybchik * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4227569Sphilip * 5227569Sphilip * This code is free software; you can redistribute it and/or modify it 6284555Sarybchik * under the terms of the GNU General Public License version 2 only, as 7227569Sphilip * published by the Free Software Foundation. 8284555Sarybchik * 9284555Sarybchik * This code is distributed in the hope that it will be useful, but WITHOUT 10284555Sarybchik * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11284555Sarybchik * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12284555Sarybchik * version 2 for more details (a copy is included in the LICENSE file that 13284555Sarybchik * accompanied this code). 14284555Sarybchik * 15284555Sarybchik * You should have received a copy of the GNU General Public License version 16284555Sarybchik * 2 along with this work; if not, write to the Free Software Foundation, 17284555Sarybchik * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18284555Sarybchik * 19284555Sarybchik * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20284555Sarybchik * or visit www.oracle.com if you need additional information or have any 21284555Sarybchik * questions. 22284555Sarybchik * 23284555Sarybchik */ 24284555Sarybchik 25284555Sarybchik#include "precompiled.hpp" 26284555Sarybchik#include "gc/shared/gcLocker.hpp" 27284555Sarybchik#include "interpreter/interpreter.hpp" 28284555Sarybchik#include "memory/heapInspection.hpp" 29227569Sphilip#include "memory/metadataFactory.hpp" 30228078Sphilip#include "oops/constMethod.hpp" 31228078Sphilip#include "oops/method.hpp" 32228078Sphilip 33228078Sphilip// Static initialization 34227569Sphilipconst u2 ConstMethod::MAX_IDNUM = 0xFFFE; 35227569Sphilipconst u2 ConstMethod::UNSET_IDNUM = 0xFFFF; 36284555Sarybchik 37227569SphilipConstMethod* ConstMethod::allocate(ClassLoaderData* loader_data, 38227569Sphilip int byte_code_size, 39227569Sphilip InlineTableSizes* sizes, 40311064Sarybchik MethodType method_type, 41311064Sarybchik TRAPS) { 42293927Sarybchik int size = ConstMethod::size(byte_code_size, sizes); 43227569Sphilip return new (loader_data, size, true, MetaspaceObj::ConstMethodType, THREAD) ConstMethod( 44227569Sphilip byte_code_size, sizes, method_type, size); 45227569Sphilip} 46227569Sphilip 47227569SphilipConstMethod::ConstMethod(int byte_code_size, 48342516Sarybchik InlineTableSizes* sizes, 49342516Sarybchik MethodType method_type, 50293927Sarybchik int size) { 51227569Sphilip 52227569Sphilip No_Safepoint_Verifier no_safepoint; 53284555Sarybchik init_fingerprint(); 54284555Sarybchik set_constants(NULL); 55284555Sarybchik set_stackmap_data(NULL); 56284555Sarybchik set_code_size(byte_code_size); 57227569Sphilip set_constMethod_size(size); 58227569Sphilip set_inlined_tables_length(sizes); // sets _flags 59227569Sphilip set_method_type(method_type); 60227569Sphilip assert(this->size() == size, "wrong size for object"); 61227569Sphilip set_name_index(0); 62227569Sphilip set_signature_index(0); 63227569Sphilip set_constants(NULL); 64227569Sphilip set_max_stack(0); 65227569Sphilip set_max_locals(0); 66227569Sphilip set_method_idnum(0); 67227569Sphilip set_size_of_parameters(0); 68227569Sphilip} 69227569Sphilip 70227569Sphilip// Accessor that copies to metadata. 71227569Sphilipvoid ConstMethod::copy_stackmap_data(ClassLoaderData* loader_data, 72227569Sphilip u1* sd, int length, TRAPS) { 73227569Sphilip _stackmap_data = MetadataFactory::new_array<u1>(loader_data, length, CHECK); 74227569Sphilip memcpy((void*)_stackmap_data->adr_at(0), (void*)sd, length); 75227569Sphilip} 76227569Sphilip 77293927Sarybchik// Deallocate metadata fields associated with ConstMethod* 78227569Sphilipvoid ConstMethod::deallocate_contents(ClassLoaderData* loader_data) { 79227569Sphilip if (stackmap_data() != NULL) { 80227569Sphilip MetadataFactory::free_array<u1>(loader_data, stackmap_data()); 81227569Sphilip } 82311064Sarybchik set_stackmap_data(NULL); 83311064Sarybchik 84293927Sarybchik // deallocate annotation arrays 85227569Sphilip if (has_method_annotations()) 86227569Sphilip MetadataFactory::free_array<u1>(loader_data, method_annotations()); 87227569Sphilip if (has_parameter_annotations()) 88227569Sphilip MetadataFactory::free_array<u1>(loader_data, parameter_annotations()); 89284555Sarybchik if (has_type_annotations()) 90284555Sarybchik MetadataFactory::free_array<u1>(loader_data, type_annotations()); 91284555Sarybchik if (has_default_annotations()) 92284555Sarybchik MetadataFactory::free_array<u1>(loader_data, default_annotations()); 93293927Sarybchik} 94227569Sphilip 95284555Sarybchik// How big must this constMethodObject be? 96284555Sarybchik 97284555Sarybchikint ConstMethod::size(int code_size, 98227569Sphilip InlineTableSizes* sizes) { 99284555Sarybchik int extra_bytes = code_size; 100284555Sarybchik if (sizes->compressed_linenumber_size() > 0) { 101227569Sphilip extra_bytes += sizes->compressed_linenumber_size(); 102227569Sphilip } 103280550Sarybchik if (sizes->checked_exceptions_length() > 0) { 104227569Sphilip extra_bytes += sizeof(u2); 105284555Sarybchik extra_bytes += sizes->checked_exceptions_length() * sizeof(CheckedExceptionElement); 106227569Sphilip } 107311079Sarybchik if (sizes->localvariable_table_length() > 0) { 108311079Sarybchik extra_bytes += sizeof(u2); 109311079Sarybchik extra_bytes += 110311079Sarybchik sizes->localvariable_table_length() * sizeof(LocalVariableTableElement); 111311079Sarybchik } 112311079Sarybchik if (sizes->exception_table_length() > 0) { 113311079Sarybchik extra_bytes += sizeof(u2); 114280550Sarybchik extra_bytes += sizes->exception_table_length() * sizeof(ExceptionTableElement); 115280550Sarybchik } 116284555Sarybchik if (sizes->generic_signature_index() != 0) { 117280550Sarybchik extra_bytes += sizeof(u2); 118280550Sarybchik } 119284555Sarybchik // This has to be a less-than-or-equal check, because we might be 120284555Sarybchik // storing information from a zero-length MethodParameters 121280550Sarybchik // attribute. We have to store these, because in some cases, they 122284555Sarybchik // cause the reflection API to throw a MalformedParametersException. 123280550Sarybchik if (sizes->method_parameters_length() >= 0) { 124280550Sarybchik extra_bytes += sizeof(u2); 125280588Sarybchik extra_bytes += sizes->method_parameters_length() * sizeof(MethodParametersElement); 126280588Sarybchik } 127280588Sarybchik 128280588Sarybchik // Align sizes up to a word. 129280550Sarybchik extra_bytes = align_size_up(extra_bytes, BytesPerWord); 130284555Sarybchik 131284555Sarybchik // One pointer per annotation array 132227569Sphilip if (sizes->method_annotations_length() > 0) { 133284555Sarybchik extra_bytes += sizeof(AnnotationArray*); 134284555Sarybchik } 135284555Sarybchik if (sizes->parameter_annotations_length() > 0) { 136227569Sphilip extra_bytes += sizeof(AnnotationArray*); 137284555Sarybchik } 138284555Sarybchik if (sizes->type_annotations_length() > 0) { 139227569Sphilip extra_bytes += sizeof(AnnotationArray*); 140311768Sarybchik } 141311768Sarybchik if (sizes->default_annotations_length() > 0) { 142311768Sarybchik extra_bytes += sizeof(AnnotationArray*); 143311768Sarybchik } 144284555Sarybchik 145284555Sarybchik int extra_words = align_size_up(extra_bytes, BytesPerWord) / BytesPerWord; 146284555Sarybchik assert(extra_words == extra_bytes/BytesPerWord, "should already be aligned"); 147284555Sarybchik return align_object_size(header_size() + extra_words); 148284555Sarybchik} 149284555Sarybchik 150284555SarybchikMethod* ConstMethod::method() const { 151284555Sarybchik return _constants->pool_holder()->method_with_idnum(_method_idnum); 152284555Sarybchik } 153227569Sphilip 154284555Sarybchik// linenumber table - note that length is unknown until decompression, 155284555Sarybchik// see class CompressedLineNumberReadStream. 156284555Sarybchik 157227569Sphilipu_char* ConstMethod::compressed_linenumber_table() const { 158342480Sarybchik // Located immediately following the bytecodes. 159342480Sarybchik assert(has_linenumber_table(), "called only if table is present"); 160227569Sphilip return code_end(); 161280562Sarybchik} 162280562Sarybchik 163227569Sphilip// Last short in ConstMethod* before annotations 164284555Sarybchiku2* ConstMethod::last_u2_element() const { 165284555Sarybchik int offset = 0; 166294381Sarybchik if (has_method_annotations()) offset++; 167311078Sarybchik if (has_parameter_annotations()) offset++; 168293953Sarybchik if (has_type_annotations()) offset++; 169284555Sarybchik if (has_default_annotations()) offset++; 170301365Sarybchik return (u2*)((AnnotationArray**)constMethod_end() - offset) - 1; 171301365Sarybchik} 172301365Sarybchik 173301365Sarybchiku2* ConstMethod::generic_signature_index_addr() const { 174311495Sarybchik // Located at the end of the constMethod. 175311495Sarybchik assert(has_generic_signature(), "called only if generic signature exists"); 176227569Sphilip return last_u2_element(); 177227569Sphilip} 178227569Sphilip 179227569Sphilipu2* ConstMethod::method_parameters_length_addr() const { 180227569Sphilip assert(has_method_parameters(), "called only if table is present"); 181293927Sarybchik return has_generic_signature() ? (last_u2_element() - 1) : 182227569Sphilip last_u2_element(); 183227569Sphilip} 184227569Sphilip 185227569Sphilipu2* ConstMethod::checked_exceptions_length_addr() const { 186293927Sarybchik // Located immediately before the generic signature index. 187227569Sphilip assert(has_checked_exceptions(), "called only if table is present"); 188227569Sphilip if(has_method_parameters()) { 189227569Sphilip // If method parameters present, locate immediately before them. 190342495Sarybchik return (u2*)method_parameters_start() - 1; 191227569Sphilip } else { 192342495Sarybchik // Else, the exception table is at the end of the constMethod. 193293927Sarybchik return has_generic_signature() ? (last_u2_element() - 1) : 194227569Sphilip last_u2_element(); 195284555Sarybchik } 196284555Sarybchik} 197227569Sphilip 198227569Sphilipu2* ConstMethod::exception_table_length_addr() const { 199227569Sphilip assert(has_exception_handler(), "called only if table is present"); 200227569Sphilip if (has_checked_exceptions()) { 201284555Sarybchik // If checked_exception present, locate immediately before them. 202227569Sphilip return (u2*) checked_exceptions_start() - 1; 203227569Sphilip } else { 204227569Sphilip if(has_method_parameters()) { 205227569Sphilip // If method parameters present, locate immediately before them. 206227569Sphilip return (u2*)method_parameters_start() - 1; 207227569Sphilip } else { 208293927Sarybchik // Else, the exception table is at the end of the constMethod. 209227569Sphilip return has_generic_signature() ? (last_u2_element() - 1) : 210227569Sphilip last_u2_element(); 211227569Sphilip } 212227569Sphilip } 213342507Sarybchik} 214342507Sarybchik 215342507Sarybchiku2* ConstMethod::localvariable_table_length_addr() const { 216342507Sarybchik assert(has_localvariable_table(), "called only if table is present"); 217342507Sarybchik if (has_exception_handler()) { 218342507Sarybchik // If exception_table present, locate immediately before them. 219342507Sarybchik return (u2*) exception_table_start() - 1; 220342507Sarybchik } else { 221342507Sarybchik if (has_checked_exceptions()) { 222342507Sarybchik // If checked_exception present, locate immediately before them. 223342507Sarybchik return (u2*) checked_exceptions_start() - 1; 224342507Sarybchik } else { 225342507Sarybchik if(has_method_parameters()) { 226342507Sarybchik // If method parameters present, locate immediately before them. 227342507Sarybchik return (u2*)method_parameters_start() - 1; 228342507Sarybchik } else { 229342507Sarybchik // Else, the exception table is at the end of the constMethod. 230342507Sarybchik return has_generic_signature() ? (last_u2_element() - 1) : 231342507Sarybchik last_u2_element(); 232342507Sarybchik } 233342507Sarybchik } 234342507Sarybchik } 235342507Sarybchik} 236342507Sarybchik 237342507Sarybchik// Update the flags to indicate the presence of these optional fields. 238342507Sarybchikvoid ConstMethod::set_inlined_tables_length(InlineTableSizes* sizes) { 239342507Sarybchik _flags = 0; 240342507Sarybchik if (sizes->compressed_linenumber_size() > 0) 241342507Sarybchik _flags |= _has_linenumber_table; 242342507Sarybchik if (sizes->generic_signature_index() != 0) 243342507Sarybchik _flags |= _has_generic_signature; 244342507Sarybchik if (sizes->method_parameters_length() >= 0) 245342507Sarybchik _flags |= _has_method_parameters; 246342507Sarybchik if (sizes->checked_exceptions_length() > 0) 247342507Sarybchik _flags |= _has_checked_exceptions; 248342507Sarybchik if (sizes->exception_table_length() > 0) 249342507Sarybchik _flags |= _has_exception_table; 250342507Sarybchik if (sizes->localvariable_table_length() > 0) 251342507Sarybchik _flags |= _has_localvariable_table; 252342507Sarybchik 253342507Sarybchik // annotations, they are all pointer sized embedded objects so don't have 254342507Sarybchik // a length embedded also. 255342507Sarybchik if (sizes->method_annotations_length() > 0) 256342507Sarybchik _flags |= _has_method_annotations; 257342507Sarybchik if (sizes->parameter_annotations_length() > 0) 258342507Sarybchik _flags |= _has_parameter_annotations; 259342507Sarybchik if (sizes->type_annotations_length() > 0) 260342507Sarybchik _flags |= _has_type_annotations; 261342507Sarybchik if (sizes->default_annotations_length() > 0) 262342507Sarybchik _flags |= _has_default_annotations; 263342507Sarybchik 264342507Sarybchik // This code is extremely brittle and should possibly be revised. 265342507Sarybchik // The *_length_addr functions walk backwards through the 266342507Sarybchik // constMethod data, using each of the length indexes ahead of them, 267342507Sarybchik // as well as the flags variable. Therefore, the indexes must be 268342507Sarybchik // initialized in reverse order, or else they will compute the wrong 269342507Sarybchik // offsets. Moving the initialization of _flags into a separate 270342507Sarybchik // block solves *half* of the problem, but the following part will 271342507Sarybchik // still break if the order is not exactly right. 272342507Sarybchik // 273342507Sarybchik // Also, the servicability agent needs to be informed anytime 274342507Sarybchik // anything is added here. It might be advisable to have some sort 275342507Sarybchik // of indication of this inline. 276342507Sarybchik if (sizes->generic_signature_index() != 0) 277342507Sarybchik *(generic_signature_index_addr()) = sizes->generic_signature_index(); 278342507Sarybchik // New data should probably go here. 279342507Sarybchik if (sizes->method_parameters_length() >= 0) 280342507Sarybchik *(method_parameters_length_addr()) = sizes->method_parameters_length(); 281342507Sarybchik if (sizes->checked_exceptions_length() > 0) 282342507Sarybchik *(checked_exceptions_length_addr()) = sizes->checked_exceptions_length(); 283342507Sarybchik if (sizes->exception_table_length() > 0) 284293927Sarybchik *(exception_table_length_addr()) = sizes->exception_table_length(); 285227569Sphilip if (sizes->localvariable_table_length() > 0) 286227569Sphilip *(localvariable_table_length_addr()) = sizes->localvariable_table_length(); 287227569Sphilip} 288227569Sphilip 289227569Sphilipint ConstMethod::method_parameters_length() const { 290227569Sphilip return has_method_parameters() ? *(method_parameters_length_addr()) : -1; 291227569Sphilip} 292284555Sarybchik 293293927SarybchikMethodParametersElement* ConstMethod::method_parameters_start() const { 294227569Sphilip u2* addr = method_parameters_length_addr(); 295227569Sphilip u2 length = *addr; 296227569Sphilip addr -= length * sizeof(MethodParametersElement) / sizeof(u2); 297284555Sarybchik return (MethodParametersElement*) addr; 298342507Sarybchik} 299227569Sphilip 300227569Sphilip 301284555Sarybchikint ConstMethod::checked_exceptions_length() const { 302284555Sarybchik return has_checked_exceptions() ? *(checked_exceptions_length_addr()) : 0; 303284555Sarybchik} 304284555Sarybchik 305284555Sarybchik 306284555SarybchikCheckedExceptionElement* ConstMethod::checked_exceptions_start() const { 307284555Sarybchik u2* addr = checked_exceptions_length_addr(); 308284555Sarybchik u2 length = *addr; 309284555Sarybchik assert(length > 0, "should only be called if table is present"); 310284555Sarybchik addr -= length * sizeof(CheckedExceptionElement) / sizeof(u2); 311227569Sphilip return (CheckedExceptionElement*) addr; 312227569Sphilip} 313284555Sarybchik 314284555Sarybchik 315227569Sphilipint ConstMethod::localvariable_table_length() const { 316227569Sphilip return has_localvariable_table() ? *(localvariable_table_length_addr()) : 0; 317284555Sarybchik} 318284555Sarybchik 319227569Sphilip 320227569SphilipLocalVariableTableElement* ConstMethod::localvariable_table_start() const { 321284555Sarybchik u2* addr = localvariable_table_length_addr(); 322227569Sphilip u2 length = *addr; 323227569Sphilip assert(length > 0, "should only be called if table is present"); 324284555Sarybchik addr -= length * sizeof(LocalVariableTableElement) / sizeof(u2); 325284555Sarybchik return (LocalVariableTableElement*) addr; 326284555Sarybchik} 327227569Sphilip 328227569Sphilipint ConstMethod::exception_table_length() const { 329284555Sarybchik return has_exception_handler() ? *(exception_table_length_addr()) : 0; 330227569Sphilip} 331284555Sarybchik 332227569SphilipExceptionTableElement* ConstMethod::exception_table_start() const { 333227569Sphilip u2* addr = exception_table_length_addr(); 334227569Sphilip u2 length = *addr; 335227569Sphilip assert(length > 0, "should only be called if table is present"); 336227569Sphilip addr -= length * sizeof(ExceptionTableElement) / sizeof(u2); 337284555Sarybchik return (ExceptionTableElement*)addr; 338227569Sphilip} 339227569Sphilip 340227569SphilipAnnotationArray** ConstMethod::method_annotations_addr() const { 341227569Sphilip assert(has_method_annotations(), "should only be called if method annotations are present"); 342227569Sphilip return (AnnotationArray**)constMethod_end() - 1; 343284555Sarybchik} 344284555Sarybchik 345227569SphilipAnnotationArray** ConstMethod::parameter_annotations_addr() const { 346227569Sphilip assert(has_parameter_annotations(), "should only be called if method parameter annotations are present"); 347227569Sphilip int offset = 1; 348284555Sarybchik if (has_method_annotations()) offset++; 349284555Sarybchik return (AnnotationArray**)constMethod_end() - offset; 350227569Sphilip} 351227569Sphilip 352227569SphilipAnnotationArray** ConstMethod::type_annotations_addr() const { 353284555Sarybchik assert(has_type_annotations(), "should only be called if method type annotations are present"); 354284555Sarybchik int offset = 1; 355227569Sphilip if (has_method_annotations()) offset++; 356227569Sphilip if (has_parameter_annotations()) offset++; 357227569Sphilip return (AnnotationArray**)constMethod_end() - offset; 358227569Sphilip} 359227569Sphilip 360227569SphilipAnnotationArray** ConstMethod::default_annotations_addr() const { 361227569Sphilip assert(has_default_annotations(), "should only be called if method default annotations are present"); 362284555Sarybchik int offset = 1; 363284555Sarybchik if (has_method_annotations()) offset++; 364284555Sarybchik if (has_parameter_annotations()) offset++; 365284555Sarybchik if (has_type_annotations()) offset++; 366227569Sphilip return (AnnotationArray**)constMethod_end() - offset; 367227569Sphilip} 368227569Sphilip 369284555Sarybchik// copy annotations from 'cm' to 'this' 370227569Sphilipvoid ConstMethod::copy_annotations_from(ConstMethod* cm) { 371227569Sphilip if (cm->has_method_annotations()) { 372227569Sphilip assert(has_method_annotations(), "should be allocated already"); 373284555Sarybchik set_method_annotations(cm->method_annotations()); 374227569Sphilip } 375227569Sphilip if (cm->has_parameter_annotations()) { 376227569Sphilip assert(has_parameter_annotations(), "should be allocated already"); 377227569Sphilip set_parameter_annotations(cm->parameter_annotations()); 378227569Sphilip } 379227569Sphilip if (cm->has_type_annotations()) { 380227569Sphilip assert(has_type_annotations(), "should be allocated already"); 381227569Sphilip set_type_annotations(cm->type_annotations()); 382227569Sphilip } 383227569Sphilip if (cm->has_default_annotations()) { 384227569Sphilip assert(has_default_annotations(), "should be allocated already"); 385227569Sphilip set_default_annotations(cm->default_annotations()); 386227569Sphilip } 387227569Sphilip} 388227569Sphilip 389227569Sphilip// Printing 390227569Sphilip 391227569Sphilipvoid ConstMethod::print_on(outputStream* st) const { 392293927Sarybchik ResourceMark rm; 393227569Sphilip assert(is_constMethod(), "must be constMethod"); 394227569Sphilip st->print_cr("%s", internal_name()); 395227569Sphilip st->print(" - method: " INTPTR_FORMAT " ", p2i((address)method())); 396227569Sphilip method()->print_value_on(st); st->cr(); 397293927Sarybchik if (has_stackmap_table()) { 398227569Sphilip st->print(" - stackmap data: "); 399227569Sphilip stackmap_data()->print_value_on(st); 400227569Sphilip st->cr(); 401227569Sphilip } 402293927Sarybchik} 403227569Sphilip 404227569Sphilip// Short version of printing ConstMethod* - just print the name of the 405227569Sphilip// method it belongs to. 406227569Sphilipvoid ConstMethod::print_value_on(outputStream* st) const { 407284555Sarybchik assert(is_constMethod(), "must be constMethod"); 408227569Sphilip st->print(" const part of method " ); 409284555Sarybchik method()->print_value_on(st); 410227569Sphilip} 411227569Sphilip 412284555Sarybchik#if INCLUDE_SERVICES 413284555Sarybchik// Size Statistics 414284555Sarybchikvoid ConstMethod::collect_statistics(KlassSizeStats *sz) const { 415284555Sarybchik int n1, n2, n3; 416284555Sarybchik sz->_const_method_bytes += (n1 = sz->count(this)); 417284555Sarybchik sz->_bytecode_bytes += (n2 = code_size()); 418284555Sarybchik sz->_stackmap_bytes += (n3 = sz->count_array(stackmap_data())); 419227569Sphilip 420227569Sphilip // Count method annotations 421227569Sphilip int a1 = 0, a2 = 0, a3 = 0, a4 = 0; 422227569Sphilip if (has_method_annotations()) { 423227569Sphilip sz->_methods_annotations_bytes += (a1 = sz->count_array(method_annotations())); 424227569Sphilip } 425227569Sphilip if (has_parameter_annotations()) { 426227569Sphilip sz->_methods_parameter_annotations_bytes += (a2 = sz->count_array(parameter_annotations())); 427227569Sphilip } 428227569Sphilip if (has_type_annotations()) { 429227569Sphilip sz->_methods_type_annotations_bytes += (a3 = sz->count_array(type_annotations())); 430227569Sphilip } 431227569Sphilip if (has_default_annotations()) { 432227569Sphilip sz->_methods_default_annotations_bytes += (a4 = sz->count_array(default_annotations())); 433227569Sphilip } 434227569Sphilip 435227569Sphilip int size_annotations = a1 + a2 + a3 + a4; 436227569Sphilip 437227569Sphilip sz->_method_all_bytes += n1 + n3 + size_annotations; // note: n2 is part of n3 438293927Sarybchik sz->_ro_bytes += n1 + n3 + size_annotations; 439227569Sphilip} 440227569Sphilip#endif // INCLUDE_SERVICES 441227569Sphilip 442227569Sphilip// Verification 443227569Sphilip 444227569Sphilipvoid ConstMethod::verify_on(outputStream* st) { 445227569Sphilip guarantee(is_constMethod(), "object must be constMethod"); 446227569Sphilip 447227569Sphilip // Verification can occur during oop construction before the method or 448227569Sphilip // other fields have been initialized. 449227569Sphilip guarantee(method()->is_method(), "should be method"); 450227569Sphilip 451227569Sphilip address m_end = (address)((intptr_t) this + size()); 452227569Sphilip address compressed_table_start = code_end(); 453227569Sphilip guarantee(compressed_table_start <= m_end, "invalid method layout"); 454227569Sphilip address compressed_table_end = compressed_table_start; 455227569Sphilip // Verify line number table 456227569Sphilip if (has_linenumber_table()) { 457227569Sphilip CompressedLineNumberReadStream stream(compressed_linenumber_table()); 458227569Sphilip while (stream.read_pair()) { 459227569Sphilip guarantee(stream.bci() >= 0 && stream.bci() <= code_size(), "invalid bci in line number table"); 460227569Sphilip } 461227569Sphilip compressed_table_end += stream.position(); 462227569Sphilip } 463227569Sphilip guarantee(compressed_table_end <= m_end, "invalid method layout"); 464227569Sphilip // Verify checked exceptions, exception table and local variable tables 465227569Sphilip if (has_method_parameters()) { 466227569Sphilip u2* addr = method_parameters_length_addr(); 467227569Sphilip guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); 468227569Sphilip } 469227569Sphilip if (has_checked_exceptions()) { 470227569Sphilip u2* addr = checked_exceptions_length_addr(); 471227569Sphilip guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); 472227569Sphilip } 473293927Sarybchik if (has_exception_handler()) { 474227569Sphilip u2* addr = exception_table_length_addr(); 475227569Sphilip guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); 476227569Sphilip } 477293927Sarybchik if (has_localvariable_table()) { 478227569Sphilip u2* addr = localvariable_table_length_addr(); 479227569Sphilip guarantee(*addr > 0 && (address) addr >= compressed_table_end && (address) addr < m_end, "invalid method layout"); 480227569Sphilip } 481284555Sarybchik // Check compressed_table_end relative to uncompressed_table_start 482284555Sarybchik u2* uncompressed_table_start; 483227569Sphilip if (has_localvariable_table()) { 484227569Sphilip uncompressed_table_start = (u2*) localvariable_table_start(); 485227569Sphilip } else if (has_exception_handler()) { 486227569Sphilip uncompressed_table_start = (u2*) exception_table_start(); 487227569Sphilip } else if (has_checked_exceptions()) { 488227569Sphilip uncompressed_table_start = (u2*) checked_exceptions_start(); 489227569Sphilip } else if (has_method_parameters()) { 490227569Sphilip uncompressed_table_start = (u2*) method_parameters_start(); 491227569Sphilip } else { 492227569Sphilip uncompressed_table_start = (u2*) m_end; 493227569Sphilip } 494227569Sphilip int gap = (intptr_t) uncompressed_table_start - (intptr_t) compressed_table_end; 495227569Sphilip int max_gap = align_object_size(1)*BytesPerWord; 496227569Sphilip guarantee(gap >= 0 && gap < max_gap, "invalid method layout"); 497293954Sarybchik} 498293954Sarybchik