1 /*
2 * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
58 unsigned int _max_nonstatic_oop_maps;
59
60 OopMapBlocksBuilder(unsigned int max_blocks);
61 OopMapBlock* last_oop_map() const;
62 void initialize_inherited_blocks(OopMapBlock* blocks, unsigned int nof_blocks);
63 void add(int offset, int count);
64 void copy(OopMapBlock* dst);
65 void compact();
66 void print_on(outputStream* st) const;
67 void print_value_on(outputStream* st) const;
68 };
69
70 // Values needed for oopmap and InstanceKlass creation
71 class FieldLayoutInfo : public ResourceObj {
72 public:
73 OopMapBlocksBuilder* oop_map_blocks;
74 int _instance_size;
75 int _nonstatic_field_size;
76 int _static_field_size;
77 bool _has_nonstatic_fields;
78 };
79
80 // Parser for for .class files
81 //
82 // The bytes describing the class file structure is read from a Stream object
83
84 class ClassFileParser {
85 friend class FieldLayoutBuilder;
86 friend class FieldLayout;
87
88 class ClassAnnotationCollector;
89 class FieldAllocationCount;
90 class FieldAnnotationCollector;
91
92 public:
93 // The ClassFileParser has an associated "publicity" level
94 // It is used to control which subsystems (if any)
95 // will observe the parsing (logging, events, tracing).
96 // Default level is "BROADCAST", which is equivalent to
97 // a "public" parsing attempt.
111 typedef void unsafe_u2;
112
113 const ClassFileStream* _stream; // Actual input stream
114 Symbol* _class_name;
115 mutable ClassLoaderData* _loader_data;
116 const bool _is_hidden;
117 const bool _can_access_vm_annotations;
118 int _orig_cp_size;
119
120 // Metadata created before the instance klass is created. Must be deallocated
121 // if not transferred to the InstanceKlass upon successful class loading
122 // in which case these pointers have been set to NULL.
123 const InstanceKlass* _super_klass;
124 ConstantPool* _cp;
125 Array<u2>* _fields;
126 Array<Method*>* _methods;
127 Array<u2>* _inner_classes;
128 Array<u2>* _nest_members;
129 u2 _nest_host;
130 Array<u2>* _permitted_subclasses;
131 Array<RecordComponent*>* _record_components;
132 Array<InstanceKlass*>* _local_interfaces;
133 Array<InstanceKlass*>* _transitive_interfaces;
134 Annotations* _combined_annotations;
135 AnnotationArray* _class_annotations;
136 AnnotationArray* _class_type_annotations;
137 Array<AnnotationArray*>* _fields_annotations;
138 Array<AnnotationArray*>* _fields_type_annotations;
139 InstanceKlass* _klass; // InstanceKlass* once created.
140 InstanceKlass* _klass_to_deallocate; // an InstanceKlass* to be destroyed
141
142 ClassAnnotationCollector* _parsed_annotations;
143 FieldAllocationCount* _fac;
144 FieldLayoutInfo* _field_info;
145 const intArray* _method_ordering;
146 GrowableArray<Method*>* _all_mirandas;
147
148 enum { fixed_buffer_size = 128 };
149 u_char _linenumbertable_buffer[fixed_buffer_size];
150
151 // Size of Java vtable (in words)
152 int _vtable_size;
153 int _itable_size;
154
155 int _num_miranda_methods;
156
157 ReferenceType _rt;
158 Handle _protection_domain;
159 AccessFlags _access_flags;
160
161 // for tracing and notifications
162 Publicity _pub_level;
163
164 // Used to keep track of whether a constant pool item 19 or 20 is found. These
165 // correspond to CONSTANT_Module and CONSTANT_Package tags and are not allowed
166 // in regular class files. For class file version >= 53, a CFE cannot be thrown
167 // immediately when these are seen because a NCDFE must be thrown if the class's
168 // access_flags have ACC_MODULE set. But, the access_flags haven't been looked
169 // at yet. So, the bad constant pool item is cached here. A value of zero
170 // means that no constant pool item 19 or 20 was found.
171 short _bad_constant_seen;
172
173 // class attributes parsed before the instance klass is created:
174 bool _synthetic_flag;
175 int _sde_length;
176 const char* _sde_buffer;
177 u2 _sourcefile_index;
178 u2 _generic_signature_index;
179
180 u2 _major_version;
181 u2 _minor_version;
182 u2 _this_class_index;
183 u2 _super_class_index;
184 u2 _itfs_len;
185 u2 _java_fields_count;
186
187 bool _need_verify;
188 bool _relax_verify;
189
190 bool _has_nonstatic_concrete_methods;
191 bool _declares_nonstatic_concrete_methods;
192 bool _has_final_method;
193 bool _has_contended_fields;
194
195 // precomputed flags
196 bool _has_finalizer;
197 bool _has_empty_finalizer;
198 bool _has_vanilla_constructor;
199 int _max_bootstrap_specifier_index; // detects BSS values
200
201 void parse_stream(const ClassFileStream* const stream, TRAPS);
202
203 void mangle_hidden_class_name(InstanceKlass* const ik);
204
205 void post_process_parsed_stream(const ClassFileStream* const stream,
206 ConstantPool* cp,
207 TRAPS);
208
209 void fill_instance_klass(InstanceKlass* ik, bool cf_changed_in_CFLH,
210 const ClassInstanceInfo& cl_inst_info, TRAPS);
211
212 void set_klass(InstanceKlass* instance);
213
214 void set_class_bad_constant_seen(short bad_constant);
222 void apply_parsed_class_attributes(InstanceKlass* k); // update k
223 void apply_parsed_class_metadata(InstanceKlass* k, int fields_count);
224 void clear_class_metadata();
225
226 // Constant pool parsing
227 void parse_constant_pool_entries(const ClassFileStream* const stream,
228 ConstantPool* cp,
229 const int length,
230 TRAPS);
231
232 void parse_constant_pool(const ClassFileStream* const cfs,
233 ConstantPool* const cp,
234 const int length,
235 TRAPS);
236
237 // Interface parsing
238 void parse_interfaces(const ClassFileStream* const stream,
239 const int itfs_len,
240 ConstantPool* const cp,
241 bool* has_nonstatic_concrete_methods,
242 TRAPS);
243
244 const InstanceKlass* parse_super_class(ConstantPool* const cp,
245 const int super_class_index,
246 const bool need_verify,
247 TRAPS);
248
249 // Field parsing
250 void parse_field_attributes(const ClassFileStream* const cfs,
251 u2 attributes_count,
252 bool is_static,
253 u2 signature_index,
254 u2* const constantvalue_index_addr,
255 bool* const is_synthetic_addr,
256 u2* const generic_signature_index_addr,
257 FieldAnnotationCollector* parsed_annotations,
258 TRAPS);
259
260 void parse_fields(const ClassFileStream* const cfs,
261 bool is_interface,
262 FieldAllocationCount* const fac,
263 ConstantPool* cp,
264 const int cp_size,
265 u2* const java_fields_count_ptr,
266 TRAPS);
267
268 // Method parsing
269 Method* parse_method(const ClassFileStream* const cfs,
270 bool is_interface,
271 const ConstantPool* cp,
272 AccessFlags* const promoted_flags,
273 TRAPS);
274
275 void parse_methods(const ClassFileStream* const cfs,
276 bool is_interface,
277 AccessFlags* const promoted_flags,
278 bool* const has_final_method,
279 bool* const declares_nonstatic_concrete_methods,
280 TRAPS);
281
282 const unsafe_u2* parse_exception_table(const ClassFileStream* const stream,
283 u4 code_length,
284 u4 exception_table_length,
285 TRAPS);
286
287 void parse_linenumber_table(u4 code_attribute_length,
288 u4 code_length,
289 CompressedLineNumberWriteStream**const write_stream,
290 TRAPS);
291
292 const unsafe_u2* parse_localvariable_table(const ClassFileStream* const cfs,
293 u4 code_length,
294 u2 max_locals,
295 u4 code_attribute_length,
296 u2* const localvariable_table_length,
311
312 // Check for circularity in InnerClasses attribute.
313 bool check_inner_classes_circularity(const ConstantPool* cp, int length, TRAPS);
314
315 u2 parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,
316 const ConstantPool* cp,
317 const u1* const inner_classes_attribute_start,
318 bool parsed_enclosingmethod_attribute,
319 u2 enclosing_method_class_index,
320 u2 enclosing_method_method_index,
321 TRAPS);
322
323 u2 parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,
324 const u1* const nest_members_attribute_start,
325 TRAPS);
326
327 u2 parse_classfile_permitted_subclasses_attribute(const ClassFileStream* const cfs,
328 const u1* const permitted_subclasses_attribute_start,
329 TRAPS);
330
331 u2 parse_classfile_record_attribute(const ClassFileStream* const cfs,
332 const ConstantPool* cp,
333 const u1* const record_attribute_start,
334 TRAPS);
335
336 void parse_classfile_attributes(const ClassFileStream* const cfs,
337 ConstantPool* cp,
338 ClassAnnotationCollector* parsed_annotations,
339 TRAPS);
340
341 void parse_classfile_synthetic_attribute();
342 void parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS);
343 void parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,
344 ConstantPool* cp,
345 u4 attribute_length,
346 TRAPS);
347
348 // Annotations handling
349 AnnotationArray* assemble_annotations(const u1* const runtime_visible_annotations,
350 int runtime_visible_annotations_length,
429 inline void guarantee_property(bool b,
430 const char* msg,
431 const char *name,
432 TRAPS) const {
433 if (!b) { classfile_parse_error(msg, name, THREAD); return; }
434 }
435
436 inline void guarantee_property(bool b,
437 const char* msg,
438 int index,
439 const char *name,
440 TRAPS) const {
441 if (!b) { classfile_parse_error(msg, index, name, THREAD); return; }
442 }
443
444 void throwIllegalSignature(const char* type,
445 const Symbol* name,
446 const Symbol* sig,
447 TRAPS) const;
448
449 void verify_constantvalue(const ConstantPool* const cp,
450 int constantvalue_index,
451 int signature_index,
452 TRAPS) const;
453
454 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) const;
455 void verify_legal_class_name(const Symbol* name, TRAPS) const;
456 void verify_legal_field_name(const Symbol* name, TRAPS) const;
457 void verify_legal_method_name(const Symbol* name, TRAPS) const;
458
459 void verify_legal_field_signature(const Symbol* fieldname,
460 const Symbol* signature,
461 TRAPS) const;
462 int verify_legal_method_signature(const Symbol* methodname,
463 const Symbol* signature,
464 TRAPS) const;
465 void verify_legal_name_with_signature(const Symbol* name,
466 const Symbol* signature,
467 TRAPS) const;
468
469 void verify_class_version(u2 major, u2 minor, Symbol* class_name, TRAPS);
470
471 void verify_legal_class_modifiers(jint flags, TRAPS) const;
472 void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS) const;
473 void verify_legal_method_modifiers(jint flags,
474 bool is_interface,
475 const Symbol* name,
476 TRAPS) const;
477
478 void check_super_class_access(const InstanceKlass* this_klass,
479 TRAPS);
480
481 void check_super_interface_access(const InstanceKlass* this_klass,
482 TRAPS);
483
484 const char* skip_over_field_signature(const char* signature,
485 bool void_ok,
486 unsigned int length,
487 TRAPS) const;
488
489 // Wrapper for constantTag.is_klass_[or_]reference.
490 // In older versions of the VM, Klass*s cannot sneak into early phases of
491 // constant pool construction, but in later versions they can.
492 // %%% Let's phase out the old is_klass_reference.
493 bool valid_klass_reference_at(int index) const {
494 return _cp->is_within_bounds(index) &&
512
513 void copy_method_annotations(ConstMethod* cm,
514 const u1* runtime_visible_annotations,
515 int runtime_visible_annotations_length,
516 const u1* runtime_invisible_annotations,
517 int runtime_invisible_annotations_length,
518 const u1* runtime_visible_parameter_annotations,
519 int runtime_visible_parameter_annotations_length,
520 const u1* runtime_invisible_parameter_annotations,
521 int runtime_invisible_parameter_annotations_length,
522 const u1* runtime_visible_type_annotations,
523 int runtime_visible_type_annotations_length,
524 const u1* runtime_invisible_type_annotations,
525 int runtime_invisible_type_annotations_length,
526 const u1* annotation_default,
527 int annotation_default_length,
528 TRAPS);
529
530 void update_class_name(Symbol* new_name);
531
532 public:
533 ClassFileParser(ClassFileStream* stream,
534 Symbol* name,
535 ClassLoaderData* loader_data,
536 const ClassLoadInfo* cl_info,
537 Publicity pub_level,
538 TRAPS);
539
540 ~ClassFileParser();
541
542 InstanceKlass* create_instance_klass(bool cf_changed_in_CFLH, const ClassInstanceInfo& cl_inst_info, TRAPS);
543
544 const ClassFileStream* clone_stream() const;
545
546 void set_klass_to_deallocate(InstanceKlass* klass);
547
548 int static_field_size() const;
549 int total_oop_map_count() const;
550 jint layout_size() const;
551
552 int vtable_size() const { return _vtable_size; }
553 int itable_size() const { return _itable_size; }
554
555 u2 this_class_index() const { return _this_class_index; }
556
557 bool is_hidden() const { return _is_hidden; }
558 bool is_interface() const { return _access_flags.is_interface(); }
559
560 ClassLoaderData* loader_data() const { return _loader_data; }
561 const Symbol* class_name() const { return _class_name; }
562 const InstanceKlass* super_klass() const { return _super_klass; }
563
564 ReferenceType reference_type() const { return _rt; }
565 AccessFlags access_flags() const { return _access_flags; }
566
567 bool is_internal() const { return INTERNAL == _pub_level; }
568
569 static bool verify_unqualified_name(const char* name, unsigned int length, int type);
570
571 #ifdef ASSERT
572 static bool is_internal_format(Symbol* class_name);
573 #endif
574
575 };
576
577 #endif // SHARE_CLASSFILE_CLASSFILEPARSER_HPP
|
1 /*
2 * Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
58 unsigned int _max_nonstatic_oop_maps;
59
60 OopMapBlocksBuilder(unsigned int max_blocks);
61 OopMapBlock* last_oop_map() const;
62 void initialize_inherited_blocks(OopMapBlock* blocks, unsigned int nof_blocks);
63 void add(int offset, int count);
64 void copy(OopMapBlock* dst);
65 void compact();
66 void print_on(outputStream* st) const;
67 void print_value_on(outputStream* st) const;
68 };
69
70 // Values needed for oopmap and InstanceKlass creation
71 class FieldLayoutInfo : public ResourceObj {
72 public:
73 OopMapBlocksBuilder* oop_map_blocks;
74 int _instance_size;
75 int _nonstatic_field_size;
76 int _static_field_size;
77 bool _has_nonstatic_fields;
78 bool _is_naturally_atomic;
79 bool _has_inline_fields;
80 };
81
82 // Parser for for .class files
83 //
84 // The bytes describing the class file structure is read from a Stream object
85
86 class ClassFileParser {
87 friend class FieldLayoutBuilder;
88 friend class FieldLayout;
89
90 class ClassAnnotationCollector;
91 class FieldAllocationCount;
92 class FieldAnnotationCollector;
93
94 public:
95 // The ClassFileParser has an associated "publicity" level
96 // It is used to control which subsystems (if any)
97 // will observe the parsing (logging, events, tracing).
98 // Default level is "BROADCAST", which is equivalent to
99 // a "public" parsing attempt.
113 typedef void unsafe_u2;
114
115 const ClassFileStream* _stream; // Actual input stream
116 Symbol* _class_name;
117 mutable ClassLoaderData* _loader_data;
118 const bool _is_hidden;
119 const bool _can_access_vm_annotations;
120 int _orig_cp_size;
121
122 // Metadata created before the instance klass is created. Must be deallocated
123 // if not transferred to the InstanceKlass upon successful class loading
124 // in which case these pointers have been set to NULL.
125 const InstanceKlass* _super_klass;
126 ConstantPool* _cp;
127 Array<u2>* _fields;
128 Array<Method*>* _methods;
129 Array<u2>* _inner_classes;
130 Array<u2>* _nest_members;
131 u2 _nest_host;
132 Array<u2>* _permitted_subclasses;
133 Array<u2>* _preload_classes;
134 Array<RecordComponent*>* _record_components;
135 GrowableArray<InstanceKlass*>* _temp_local_interfaces;
136 Array<InstanceKlass*>* _local_interfaces;
137 Array<InstanceKlass*>* _transitive_interfaces;
138 Annotations* _combined_annotations;
139 AnnotationArray* _class_annotations;
140 AnnotationArray* _class_type_annotations;
141 Array<AnnotationArray*>* _fields_annotations;
142 Array<AnnotationArray*>* _fields_type_annotations;
143 InstanceKlass* _klass; // InstanceKlass* once created.
144 InstanceKlass* _klass_to_deallocate; // an InstanceKlass* to be destroyed
145
146 ClassAnnotationCollector* _parsed_annotations;
147 FieldAllocationCount* _fac;
148 FieldLayoutInfo* _field_info;
149 Array<InlineKlass*>* _inline_type_field_klasses;
150 const intArray* _method_ordering;
151 GrowableArray<Method*>* _all_mirandas;
152
153 enum { fixed_buffer_size = 128 };
154 u_char _linenumbertable_buffer[fixed_buffer_size];
155
156 // Size of Java vtable (in words)
157 int _vtable_size;
158 int _itable_size;
159
160 int _num_miranda_methods;
161
162 int _alignment;
163 int _first_field_offset;
164 int _exact_size_in_bytes;
165
166 ReferenceType _rt;
167 Handle _protection_domain;
168 AccessFlags _access_flags;
169
170 // for tracing and notifications
171 Publicity _pub_level;
172
173 // Used to keep track of whether a constant pool item 19 or 20 is found. These
174 // correspond to CONSTANT_Module and CONSTANT_Package tags and are not allowed
175 // in regular class files. For class file version >= 53, a CFE cannot be thrown
176 // immediately when these are seen because a NCDFE must be thrown if the class's
177 // access_flags have ACC_MODULE set. But, the access_flags haven't been looked
178 // at yet. So, the bad constant pool item is cached here. A value of zero
179 // means that no constant pool item 19 or 20 was found.
180 short _bad_constant_seen;
181
182 // class attributes parsed before the instance klass is created:
183 bool _synthetic_flag;
184 int _sde_length;
185 const char* _sde_buffer;
186 u2 _sourcefile_index;
187 u2 _generic_signature_index;
188
189 u2 _major_version;
190 u2 _minor_version;
191 u2 _this_class_index;
192 u2 _super_class_index;
193 u2 _itfs_len;
194 u2 _java_fields_count;
195
196 bool _need_verify;
197 bool _relax_verify;
198
199 bool _has_nonstatic_concrete_methods;
200 bool _declares_nonstatic_concrete_methods;
201 bool _has_final_method;
202 bool _has_contended_fields;
203
204 bool _has_inline_type_fields;
205 bool _has_nonstatic_fields;
206 bool _is_empty_inline_type;
207 bool _is_naturally_atomic;
208 bool _is_declared_atomic;
209 bool _invalid_inline_super; // if true, invalid super type for an inline type.
210 bool _invalid_identity_super; // if true, invalid super type for an identity type.
211
212 // precomputed flags
213 bool _has_finalizer;
214 bool _has_empty_finalizer;
215 bool _has_vanilla_constructor;
216 int _max_bootstrap_specifier_index; // detects BSS values
217
218 void parse_stream(const ClassFileStream* const stream, TRAPS);
219
220 void mangle_hidden_class_name(InstanceKlass* const ik);
221
222 void post_process_parsed_stream(const ClassFileStream* const stream,
223 ConstantPool* cp,
224 TRAPS);
225
226 void fill_instance_klass(InstanceKlass* ik, bool cf_changed_in_CFLH,
227 const ClassInstanceInfo& cl_inst_info, TRAPS);
228
229 void set_klass(InstanceKlass* instance);
230
231 void set_class_bad_constant_seen(short bad_constant);
239 void apply_parsed_class_attributes(InstanceKlass* k); // update k
240 void apply_parsed_class_metadata(InstanceKlass* k, int fields_count);
241 void clear_class_metadata();
242
243 // Constant pool parsing
244 void parse_constant_pool_entries(const ClassFileStream* const stream,
245 ConstantPool* cp,
246 const int length,
247 TRAPS);
248
249 void parse_constant_pool(const ClassFileStream* const cfs,
250 ConstantPool* const cp,
251 const int length,
252 TRAPS);
253
254 // Interface parsing
255 void parse_interfaces(const ClassFileStream* const stream,
256 const int itfs_len,
257 ConstantPool* const cp,
258 bool* has_nonstatic_concrete_methods,
259 bool* is_declared_atomic,
260 TRAPS);
261
262 const InstanceKlass* parse_super_class(ConstantPool* const cp,
263 const int super_class_index,
264 const bool need_verify,
265 TRAPS);
266
267 // Field parsing
268 void parse_field_attributes(const ClassFileStream* const cfs,
269 u2 attributes_count,
270 bool is_static,
271 u2 signature_index,
272 u2* const constantvalue_index_addr,
273 bool* const is_synthetic_addr,
274 u2* const generic_signature_index_addr,
275 FieldAnnotationCollector* parsed_annotations,
276 TRAPS);
277
278 void parse_fields(const ClassFileStream* const cfs,
279 bool is_interface,
280 bool is_inline_type,
281 bool is_permits_value_class,
282 FieldAllocationCount* const fac,
283 ConstantPool* cp,
284 const int cp_size,
285 u2* const java_fields_count_ptr,
286 TRAPS);
287
288 // Method parsing
289 Method* parse_method(const ClassFileStream* const cfs,
290 bool is_interface,
291 bool is_inline_type,
292 bool is_permits_value_class,
293 const ConstantPool* cp,
294 AccessFlags* const promoted_flags,
295 TRAPS);
296
297 void parse_methods(const ClassFileStream* const cfs,
298 bool is_interface,
299 bool is_inline_type,
300 bool is_permits_value_class,
301 AccessFlags* const promoted_flags,
302 bool* const has_final_method,
303 bool* const declares_nonstatic_concrete_methods,
304 TRAPS);
305
306 const unsafe_u2* parse_exception_table(const ClassFileStream* const stream,
307 u4 code_length,
308 u4 exception_table_length,
309 TRAPS);
310
311 void parse_linenumber_table(u4 code_attribute_length,
312 u4 code_length,
313 CompressedLineNumberWriteStream**const write_stream,
314 TRAPS);
315
316 const unsafe_u2* parse_localvariable_table(const ClassFileStream* const cfs,
317 u4 code_length,
318 u2 max_locals,
319 u4 code_attribute_length,
320 u2* const localvariable_table_length,
335
336 // Check for circularity in InnerClasses attribute.
337 bool check_inner_classes_circularity(const ConstantPool* cp, int length, TRAPS);
338
339 u2 parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,
340 const ConstantPool* cp,
341 const u1* const inner_classes_attribute_start,
342 bool parsed_enclosingmethod_attribute,
343 u2 enclosing_method_class_index,
344 u2 enclosing_method_method_index,
345 TRAPS);
346
347 u2 parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,
348 const u1* const nest_members_attribute_start,
349 TRAPS);
350
351 u2 parse_classfile_permitted_subclasses_attribute(const ClassFileStream* const cfs,
352 const u1* const permitted_subclasses_attribute_start,
353 TRAPS);
354
355 u2 parse_classfile_preload_attribute(const ClassFileStream* const cfs,
356 const u1* const preload_attribute_start,
357 TRAPS);
358
359 u2 parse_classfile_record_attribute(const ClassFileStream* const cfs,
360 const ConstantPool* cp,
361 const u1* const record_attribute_start,
362 TRAPS);
363
364 void parse_classfile_attributes(const ClassFileStream* const cfs,
365 ConstantPool* cp,
366 ClassAnnotationCollector* parsed_annotations,
367 TRAPS);
368
369 void parse_classfile_synthetic_attribute();
370 void parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS);
371 void parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,
372 ConstantPool* cp,
373 u4 attribute_length,
374 TRAPS);
375
376 // Annotations handling
377 AnnotationArray* assemble_annotations(const u1* const runtime_visible_annotations,
378 int runtime_visible_annotations_length,
457 inline void guarantee_property(bool b,
458 const char* msg,
459 const char *name,
460 TRAPS) const {
461 if (!b) { classfile_parse_error(msg, name, THREAD); return; }
462 }
463
464 inline void guarantee_property(bool b,
465 const char* msg,
466 int index,
467 const char *name,
468 TRAPS) const {
469 if (!b) { classfile_parse_error(msg, index, name, THREAD); return; }
470 }
471
472 void throwIllegalSignature(const char* type,
473 const Symbol* name,
474 const Symbol* sig,
475 TRAPS) const;
476
477 void throwInlineTypeLimitation(THREAD_AND_LOCATION_DECL,
478 const char* msg,
479 const Symbol* name = NULL,
480 const Symbol* sig = NULL) const;
481
482 void verify_constantvalue(const ConstantPool* const cp,
483 int constantvalue_index,
484 int signature_index,
485 TRAPS) const;
486
487 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) const;
488 void verify_legal_class_name(const Symbol* name, TRAPS) const;
489 void verify_legal_field_name(const Symbol* name, TRAPS) const;
490 void verify_legal_method_name(const Symbol* name, TRAPS) const;
491
492 void verify_legal_field_signature(const Symbol* fieldname,
493 const Symbol* signature,
494 TRAPS) const;
495 int verify_legal_method_signature(const Symbol* methodname,
496 const Symbol* signature,
497 TRAPS) const;
498 void verify_legal_name_with_signature(const Symbol* name,
499 const Symbol* signature,
500 TRAPS) const;
501
502 void verify_class_version(u2 major, u2 minor, Symbol* class_name, TRAPS);
503
504 void verify_legal_class_modifiers(jint flags, TRAPS) const;
505 void verify_legal_field_modifiers(jint flags,
506 bool is_interface,
507 bool is_inline_type,
508 bool is_permits_value_class,
509 TRAPS) const;
510 void verify_legal_method_modifiers(jint flags,
511 bool is_interface,
512 bool is_inline_type,
513 bool is_permits_value_class,
514 const Symbol* name,
515 TRAPS) const;
516
517 void check_super_class_access(const InstanceKlass* this_klass,
518 TRAPS);
519
520 void check_super_interface_access(const InstanceKlass* this_klass,
521 TRAPS);
522
523 const char* skip_over_field_signature(const char* signature,
524 bool void_ok,
525 unsigned int length,
526 TRAPS) const;
527
528 // Wrapper for constantTag.is_klass_[or_]reference.
529 // In older versions of the VM, Klass*s cannot sneak into early phases of
530 // constant pool construction, but in later versions they can.
531 // %%% Let's phase out the old is_klass_reference.
532 bool valid_klass_reference_at(int index) const {
533 return _cp->is_within_bounds(index) &&
551
552 void copy_method_annotations(ConstMethod* cm,
553 const u1* runtime_visible_annotations,
554 int runtime_visible_annotations_length,
555 const u1* runtime_invisible_annotations,
556 int runtime_invisible_annotations_length,
557 const u1* runtime_visible_parameter_annotations,
558 int runtime_visible_parameter_annotations_length,
559 const u1* runtime_invisible_parameter_annotations,
560 int runtime_invisible_parameter_annotations_length,
561 const u1* runtime_visible_type_annotations,
562 int runtime_visible_type_annotations_length,
563 const u1* runtime_invisible_type_annotations,
564 int runtime_invisible_type_annotations_length,
565 const u1* annotation_default,
566 int annotation_default_length,
567 TRAPS);
568
569 void update_class_name(Symbol* new_name);
570
571 // Check if the class file supports inline types
572 bool supports_inline_types() const;
573
574 public:
575 ClassFileParser(ClassFileStream* stream,
576 Symbol* name,
577 ClassLoaderData* loader_data,
578 const ClassLoadInfo* cl_info,
579 Publicity pub_level,
580 TRAPS);
581
582 ~ClassFileParser();
583
584 InstanceKlass* create_instance_klass(bool cf_changed_in_CFLH, const ClassInstanceInfo& cl_inst_info, TRAPS);
585
586 const ClassFileStream* clone_stream() const;
587
588 void set_klass_to_deallocate(InstanceKlass* klass);
589
590 int static_field_size() const;
591 int total_oop_map_count() const;
592 jint layout_size() const;
593
594 int vtable_size() const { return _vtable_size; }
595 int itable_size() const { return _itable_size; }
596
597 u2 this_class_index() const { return _this_class_index; }
598
599 bool is_hidden() const { return _is_hidden; }
600 bool is_interface() const { return _access_flags.is_interface(); }
601 bool is_inline_type() const { return _access_flags.is_value_class(); }
602 bool is_permits_value_class() const { return _access_flags.is_permits_value_class(); }
603 bool is_identity_class() const { return _access_flags.is_identity_class(); }
604 bool is_value_capable_class() const;
605 bool has_inline_fields() const { return _has_inline_type_fields; }
606 bool invalid_inline_super() const { return _invalid_inline_super; }
607 void set_invalid_inline_super() { _invalid_inline_super = true; }
608 bool invalid_identity_super() const { return _invalid_identity_super; }
609 void set_invalid_identity_super() { _invalid_identity_super = true; }
610 bool is_invalid_super_for_inline_type();
611
612 u2 java_fields_count() const { return _java_fields_count; }
613
614 ClassLoaderData* loader_data() const { return _loader_data; }
615 const Symbol* class_name() const { return _class_name; }
616 const InstanceKlass* super_klass() const { return _super_klass; }
617
618 ReferenceType reference_type() const { return _rt; }
619 AccessFlags access_flags() const { return _access_flags; }
620
621 bool is_internal() const { return INTERNAL == _pub_level; }
622
623 static bool verify_unqualified_name(const char* name, unsigned int length, int type);
624
625 #ifdef ASSERT
626 static bool is_internal_format(Symbol* class_name);
627 #endif
628
629 };
630
631 #endif // SHARE_CLASSFILE_CLASSFILEPARSER_HPP
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