Mercurial > hg > truffle
comparison src/share/vm/classfile/classFileParser.hpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
---|---|
date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | a45484ea312d |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:a61af66fc99e |
---|---|
1 /* | |
2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // Parser for for .class files | |
26 // | |
27 // The bytes describing the class file structure is read from a Stream object | |
28 | |
29 class ClassFileParser VALUE_OBJ_CLASS_SPEC { | |
30 private: | |
31 bool _need_verify; | |
32 bool _relax_verify; | |
33 u2 _major_version; | |
34 u2 _minor_version; | |
35 symbolHandle _class_name; | |
36 | |
37 bool _has_finalizer; | |
38 bool _has_empty_finalizer; | |
39 bool _has_vanilla_constructor; | |
40 | |
41 enum { fixed_buffer_size = 128 }; | |
42 u_char linenumbertable_buffer[fixed_buffer_size]; | |
43 | |
44 ClassFileStream* _stream; // Actual input stream | |
45 | |
46 enum { LegalClass, LegalField, LegalMethod }; // used to verify unqualified names | |
47 | |
48 // Accessors | |
49 ClassFileStream* stream() { return _stream; } | |
50 void set_stream(ClassFileStream* st) { _stream = st; } | |
51 | |
52 // Constant pool parsing | |
53 void parse_constant_pool_entries(constantPoolHandle cp, int length, TRAPS); | |
54 | |
55 constantPoolHandle parse_constant_pool(TRAPS); | |
56 | |
57 // Interface parsing | |
58 objArrayHandle parse_interfaces(constantPoolHandle cp, | |
59 int length, | |
60 Handle class_loader, | |
61 Handle protection_domain, | |
62 PerfTraceTime* vmtimer, | |
63 symbolHandle class_name, | |
64 TRAPS); | |
65 | |
66 // Field parsing | |
67 void parse_field_attributes(constantPoolHandle cp, u2 attributes_count, | |
68 bool is_static, u2 signature_index, | |
69 u2* constantvalue_index_addr, | |
70 bool* is_synthetic_addr, | |
71 u2* generic_signature_index_addr, | |
72 typeArrayHandle* field_annotations, TRAPS); | |
73 typeArrayHandle parse_fields(constantPoolHandle cp, bool is_interface, | |
74 struct FieldAllocationCount *fac, | |
75 objArrayHandle* fields_annotations, TRAPS); | |
76 | |
77 // Method parsing | |
78 methodHandle parse_method(constantPoolHandle cp, bool is_interface, | |
79 AccessFlags* promoted_flags, | |
80 typeArrayHandle* method_annotations, | |
81 typeArrayHandle* method_parameter_annotations, | |
82 typeArrayHandle* method_default_annotations, | |
83 TRAPS); | |
84 objArrayHandle parse_methods (constantPoolHandle cp, bool is_interface, | |
85 AccessFlags* promoted_flags, | |
86 bool* has_final_method, | |
87 objArrayOop* methods_annotations_oop, | |
88 objArrayOop* methods_parameter_annotations_oop, | |
89 objArrayOop* methods_default_annotations_oop, | |
90 TRAPS); | |
91 typeArrayHandle sort_methods (objArrayHandle methods, | |
92 objArrayHandle methods_annotations, | |
93 objArrayHandle methods_parameter_annotations, | |
94 objArrayHandle methods_default_annotations, | |
95 TRAPS); | |
96 typeArrayHandle parse_exception_table(u4 code_length, u4 exception_table_length, | |
97 constantPoolHandle cp, TRAPS); | |
98 void parse_linenumber_table( | |
99 u4 code_attribute_length, u4 code_length, | |
100 CompressedLineNumberWriteStream** write_stream, TRAPS); | |
101 u2* parse_localvariable_table(u4 code_length, u2 max_locals, u4 code_attribute_length, | |
102 constantPoolHandle cp, u2* localvariable_table_length, | |
103 bool isLVTT, TRAPS); | |
104 u2* parse_checked_exceptions(u2* checked_exceptions_length, u4 method_attribute_length, | |
105 constantPoolHandle cp, TRAPS); | |
106 void parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, | |
107 u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS); | |
108 typeArrayOop parse_stackmap_table(u4 code_attribute_length, TRAPS); | |
109 | |
110 // Classfile attribute parsing | |
111 void parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
112 void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, | |
113 instanceKlassHandle k, int length, TRAPS); | |
114 u2 parse_classfile_inner_classes_attribute(constantPoolHandle cp, | |
115 instanceKlassHandle k, TRAPS); | |
116 void parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
117 void parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
118 void parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
119 | |
120 // Annotations handling | |
121 typeArrayHandle assemble_annotations(u1* runtime_visible_annotations, | |
122 int runtime_visible_annotations_length, | |
123 u1* runtime_invisible_annotations, | |
124 int runtime_invisible_annotations_length, TRAPS); | |
125 | |
126 // Final setup | |
127 int compute_oop_map_size(instanceKlassHandle super, int nonstatic_oop_count, | |
128 int first_nonstatic_oop_offset); | |
129 void fill_oop_maps(instanceKlassHandle k, int nonstatic_oop_map_count, | |
130 u2* nonstatic_oop_offsets, u2* nonstatic_oop_length); | |
131 void set_precomputed_flags(instanceKlassHandle k); | |
132 objArrayHandle compute_transitive_interfaces(instanceKlassHandle super, | |
133 objArrayHandle local_ifs, TRAPS); | |
134 | |
135 // Special handling for certain classes. | |
136 // Add the "discovered" field to java.lang.ref.Reference if | |
137 // it does not exist. | |
138 void java_lang_ref_Reference_fix_pre(typeArrayHandle* fields_ptr, | |
139 constantPoolHandle cp, FieldAllocationCount *fac_ptr, TRAPS); | |
140 // Adjust the field allocation counts for java.lang.Class to add | |
141 // fake fields. | |
142 void java_lang_Class_fix_pre(objArrayHandle* methods_ptr, | |
143 FieldAllocationCount *fac_ptr, TRAPS); | |
144 // Adjust the next_nonstatic_oop_offset to place the fake fields | |
145 // before any Java fields. | |
146 void java_lang_Class_fix_post(int* next_nonstatic_oop_offset); | |
147 | |
148 // Format checker methods | |
149 void classfile_parse_error(const char* msg, TRAPS); | |
150 void classfile_parse_error(const char* msg, int index, TRAPS); | |
151 void classfile_parse_error(const char* msg, const char *name, TRAPS); | |
152 void classfile_parse_error(const char* msg, int index, const char *name, TRAPS); | |
153 inline void guarantee_property(bool b, const char* msg, TRAPS) { | |
154 if (!b) { classfile_parse_error(msg, CHECK); } | |
155 } | |
156 | |
157 inline void assert_property(bool b, const char* msg, TRAPS) { | |
158 #ifdef ASSERT | |
159 if (!b) { fatal(msg); } | |
160 #endif | |
161 } | |
162 | |
163 inline void check_property(bool property, const char* msg, int index, TRAPS) { | |
164 if (_need_verify) { | |
165 guarantee_property(property, msg, index, CHECK); | |
166 } else { | |
167 assert_property(property, msg, CHECK); | |
168 } | |
169 } | |
170 | |
171 inline void check_property(bool property, const char* msg, TRAPS) { | |
172 if (_need_verify) { | |
173 guarantee_property(property, msg, CHECK); | |
174 } else { | |
175 assert_property(property, msg, CHECK); | |
176 } | |
177 } | |
178 | |
179 inline void guarantee_property(bool b, const char* msg, int index, TRAPS) { | |
180 if (!b) { classfile_parse_error(msg, index, CHECK); } | |
181 } | |
182 inline void guarantee_property(bool b, const char* msg, const char *name, TRAPS) { | |
183 if (!b) { classfile_parse_error(msg, name, CHECK); } | |
184 } | |
185 inline void guarantee_property(bool b, const char* msg, int index, const char *name, TRAPS) { | |
186 if (!b) { classfile_parse_error(msg, index, name, CHECK); } | |
187 } | |
188 | |
189 bool is_supported_version(u2 major, u2 minor); | |
190 bool has_illegal_visibility(jint flags); | |
191 | |
192 void verify_constantvalue(int constantvalue_index, int signature_index, constantPoolHandle cp, TRAPS); | |
193 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS); | |
194 void verify_legal_class_name(symbolHandle name, TRAPS); | |
195 void verify_legal_field_name(symbolHandle name, TRAPS); | |
196 void verify_legal_method_name(symbolHandle name, TRAPS); | |
197 void verify_legal_field_signature(symbolHandle fieldname, symbolHandle signature, TRAPS); | |
198 int verify_legal_method_signature(symbolHandle methodname, symbolHandle signature, TRAPS); | |
199 void verify_legal_class_modifiers(jint flags, TRAPS); | |
200 void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS); | |
201 void verify_legal_method_modifiers(jint flags, bool is_interface, symbolHandle name, TRAPS); | |
202 bool verify_unqualified_name(char* name, unsigned int length, int type); | |
203 char* skip_over_field_name(char* name, bool slash_ok, unsigned int length); | |
204 char* skip_over_field_signature(char* signature, bool void_ok, unsigned int length, TRAPS); | |
205 | |
206 public: | |
207 // Constructor | |
208 ClassFileParser(ClassFileStream* st) { set_stream(st); } | |
209 | |
210 // Parse .class file and return new klassOop. The klassOop is not hooked up | |
211 // to the system dictionary or any other structures, so a .class file can | |
212 // be loaded several times if desired. | |
213 // The system dictionary hookup is done by the caller. | |
214 // | |
215 // "parsed_name" is updated by this method, and is the name found | |
216 // while parsing the stream. | |
217 instanceKlassHandle parseClassFile(symbolHandle name, | |
218 Handle class_loader, | |
219 Handle protection_domain, | |
220 symbolHandle& parsed_name, | |
221 TRAPS); | |
222 | |
223 // Verifier checks | |
224 static void check_super_class_access(instanceKlassHandle this_klass, TRAPS); | |
225 static void check_super_interface_access(instanceKlassHandle this_klass, TRAPS); | |
226 static void check_final_method_override(instanceKlassHandle this_klass, TRAPS); | |
227 static void check_illegal_static_method(instanceKlassHandle this_klass, TRAPS); | |
228 }; |