Mercurial > hg > truffle
annotate src/share/vm/classfile/classFileParser.hpp @ 4530:6c6cb7be1324
bugfix
author | Christian Haeubl <christian.haeubl@oracle.com> |
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date | Wed, 08 Feb 2012 21:13:35 -0800 |
parents | e6b1331a51d2 |
children | cd5d8cafcc84 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP |
26 #define SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP | |
27 | |
28 #include "classfile/classFileStream.hpp" | |
29 #include "memory/resourceArea.hpp" | |
30 #include "oops/oop.inline.hpp" | |
31 #include "oops/typeArrayOop.hpp" | |
32 #include "runtime/handles.inline.hpp" | |
33 #include "utilities/accessFlags.hpp" | |
34 | |
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35 class TempNewSymbol; |
3938 | 36 class FieldAllocationCount; |
37 | |
38 | |
0 | 39 // Parser for for .class files |
40 // | |
41 // The bytes describing the class file structure is read from a Stream object | |
42 | |
43 class ClassFileParser VALUE_OBJ_CLASS_SPEC { | |
44 private: | |
45 bool _need_verify; | |
46 bool _relax_verify; | |
47 u2 _major_version; | |
48 u2 _minor_version; | |
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49 Symbol* _class_name; |
710 | 50 KlassHandle _host_klass; |
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51 GrowableArray<Handle>* _cp_patches; // overrides for CP entries |
0 | 52 |
53 bool _has_finalizer; | |
54 bool _has_empty_finalizer; | |
55 bool _has_vanilla_constructor; | |
56 | |
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57 int _max_bootstrap_specifier_index; |
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58 |
0 | 59 enum { fixed_buffer_size = 128 }; |
60 u_char linenumbertable_buffer[fixed_buffer_size]; | |
61 | |
62 ClassFileStream* _stream; // Actual input stream | |
63 | |
64 enum { LegalClass, LegalField, LegalMethod }; // used to verify unqualified names | |
65 | |
66 // Accessors | |
67 ClassFileStream* stream() { return _stream; } | |
68 void set_stream(ClassFileStream* st) { _stream = st; } | |
69 | |
70 // Constant pool parsing | |
71 void parse_constant_pool_entries(constantPoolHandle cp, int length, TRAPS); | |
72 | |
73 constantPoolHandle parse_constant_pool(TRAPS); | |
74 | |
75 // Interface parsing | |
76 objArrayHandle parse_interfaces(constantPoolHandle cp, | |
77 int length, | |
78 Handle class_loader, | |
79 Handle protection_domain, | |
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80 Symbol* class_name, |
0 | 81 TRAPS); |
82 | |
83 // Field parsing | |
84 void parse_field_attributes(constantPoolHandle cp, u2 attributes_count, | |
85 bool is_static, u2 signature_index, | |
86 u2* constantvalue_index_addr, | |
87 bool* is_synthetic_addr, | |
88 u2* generic_signature_index_addr, | |
89 typeArrayHandle* field_annotations, TRAPS); | |
3938 | 90 typeArrayHandle parse_fields(Symbol* class_name, |
91 constantPoolHandle cp, bool is_interface, | |
92 FieldAllocationCount *fac, | |
93 objArrayHandle* fields_annotations, | |
94 int* java_fields_count_ptr, TRAPS); | |
0 | 95 |
96 // Method parsing | |
97 methodHandle parse_method(constantPoolHandle cp, bool is_interface, | |
98 AccessFlags* promoted_flags, | |
99 typeArrayHandle* method_annotations, | |
100 typeArrayHandle* method_parameter_annotations, | |
101 typeArrayHandle* method_default_annotations, | |
102 TRAPS); | |
103 objArrayHandle parse_methods (constantPoolHandle cp, bool is_interface, | |
104 AccessFlags* promoted_flags, | |
105 bool* has_final_method, | |
106 objArrayOop* methods_annotations_oop, | |
107 objArrayOop* methods_parameter_annotations_oop, | |
108 objArrayOop* methods_default_annotations_oop, | |
109 TRAPS); | |
110 typeArrayHandle sort_methods (objArrayHandle methods, | |
111 objArrayHandle methods_annotations, | |
112 objArrayHandle methods_parameter_annotations, | |
113 objArrayHandle methods_default_annotations, | |
114 TRAPS); | |
115 typeArrayHandle parse_exception_table(u4 code_length, u4 exception_table_length, | |
116 constantPoolHandle cp, TRAPS); | |
117 void parse_linenumber_table( | |
118 u4 code_attribute_length, u4 code_length, | |
119 CompressedLineNumberWriteStream** write_stream, TRAPS); | |
120 u2* parse_localvariable_table(u4 code_length, u2 max_locals, u4 code_attribute_length, | |
121 constantPoolHandle cp, u2* localvariable_table_length, | |
122 bool isLVTT, TRAPS); | |
123 u2* parse_checked_exceptions(u2* checked_exceptions_length, u4 method_attribute_length, | |
124 constantPoolHandle cp, TRAPS); | |
125 void parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, | |
126 u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS); | |
127 typeArrayOop parse_stackmap_table(u4 code_attribute_length, TRAPS); | |
128 | |
129 // Classfile attribute parsing | |
130 void parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
131 void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, | |
132 instanceKlassHandle k, int length, TRAPS); | |
133 u2 parse_classfile_inner_classes_attribute(constantPoolHandle cp, | |
134 instanceKlassHandle k, TRAPS); | |
135 void parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
136 void parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
137 void parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
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138 void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k, u4 attribute_length, TRAPS); |
0 | 139 |
140 // Annotations handling | |
141 typeArrayHandle assemble_annotations(u1* runtime_visible_annotations, | |
142 int runtime_visible_annotations_length, | |
143 u1* runtime_invisible_annotations, | |
144 int runtime_invisible_annotations_length, TRAPS); | |
145 | |
146 // Final setup | |
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147 unsigned int compute_oop_map_count(instanceKlassHandle super, |
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148 unsigned int nonstatic_oop_count, |
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149 int first_nonstatic_oop_offset); |
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150 void fill_oop_maps(instanceKlassHandle k, |
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151 unsigned int nonstatic_oop_map_count, |
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152 int* nonstatic_oop_offsets, |
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153 unsigned int* nonstatic_oop_counts); |
0 | 154 void set_precomputed_flags(instanceKlassHandle k); |
155 objArrayHandle compute_transitive_interfaces(instanceKlassHandle super, | |
156 objArrayHandle local_ifs, TRAPS); | |
157 | |
158 // Format checker methods | |
159 void classfile_parse_error(const char* msg, TRAPS); | |
160 void classfile_parse_error(const char* msg, int index, TRAPS); | |
161 void classfile_parse_error(const char* msg, const char *name, TRAPS); | |
162 void classfile_parse_error(const char* msg, int index, const char *name, TRAPS); | |
163 inline void guarantee_property(bool b, const char* msg, TRAPS) { | |
164 if (!b) { classfile_parse_error(msg, CHECK); } | |
165 } | |
166 | |
167 inline void assert_property(bool b, const char* msg, TRAPS) { | |
168 #ifdef ASSERT | |
169 if (!b) { fatal(msg); } | |
170 #endif | |
171 } | |
172 | |
173 inline void check_property(bool property, const char* msg, int index, TRAPS) { | |
174 if (_need_verify) { | |
175 guarantee_property(property, msg, index, CHECK); | |
176 } else { | |
177 assert_property(property, msg, CHECK); | |
178 } | |
179 } | |
180 | |
181 inline void check_property(bool property, const char* msg, TRAPS) { | |
182 if (_need_verify) { | |
183 guarantee_property(property, msg, CHECK); | |
184 } else { | |
185 assert_property(property, msg, CHECK); | |
186 } | |
187 } | |
188 | |
189 inline void guarantee_property(bool b, const char* msg, int index, TRAPS) { | |
190 if (!b) { classfile_parse_error(msg, index, CHECK); } | |
191 } | |
192 inline void guarantee_property(bool b, const char* msg, const char *name, TRAPS) { | |
193 if (!b) { classfile_parse_error(msg, name, CHECK); } | |
194 } | |
195 inline void guarantee_property(bool b, const char* msg, int index, const char *name, TRAPS) { | |
196 if (!b) { classfile_parse_error(msg, index, name, CHECK); } | |
197 } | |
198 | |
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199 void throwIllegalSignature( |
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200 const char* type, Symbol* name, Symbol* sig, TRAPS); |
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201 |
0 | 202 bool is_supported_version(u2 major, u2 minor); |
203 bool has_illegal_visibility(jint flags); | |
204 | |
205 void verify_constantvalue(int constantvalue_index, int signature_index, constantPoolHandle cp, TRAPS); | |
206 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS); | |
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207 void verify_legal_class_name(Symbol* name, TRAPS); |
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208 void verify_legal_field_name(Symbol* name, TRAPS); |
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209 void verify_legal_method_name(Symbol* name, TRAPS); |
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210 void verify_legal_field_signature(Symbol* fieldname, Symbol* signature, TRAPS); |
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211 int verify_legal_method_signature(Symbol* methodname, Symbol* signature, TRAPS); |
0 | 212 void verify_legal_class_modifiers(jint flags, TRAPS); |
213 void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS); | |
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214 void verify_legal_method_modifiers(jint flags, bool is_interface, Symbol* name, TRAPS); |
0 | 215 bool verify_unqualified_name(char* name, unsigned int length, int type); |
216 char* skip_over_field_name(char* name, bool slash_ok, unsigned int length); | |
217 char* skip_over_field_signature(char* signature, bool void_ok, unsigned int length, TRAPS); | |
218 | |
710 | 219 bool is_anonymous() { |
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220 assert(EnableInvokeDynamic || _host_klass.is_null(), ""); |
710 | 221 return _host_klass.not_null(); |
222 } | |
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223 bool has_cp_patch_at(int index) { |
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224 assert(EnableInvokeDynamic, ""); |
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225 assert(index >= 0, "oob"); |
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226 return (_cp_patches != NULL |
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227 && index < _cp_patches->length() |
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228 && _cp_patches->adr_at(index)->not_null()); |
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229 } |
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230 Handle cp_patch_at(int index) { |
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231 assert(has_cp_patch_at(index), "oob"); |
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232 return _cp_patches->at(index); |
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233 } |
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234 Handle clear_cp_patch_at(int index) { |
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235 Handle patch = cp_patch_at(index); |
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236 _cp_patches->at_put(index, Handle()); |
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237 assert(!has_cp_patch_at(index), ""); |
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238 return patch; |
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239 } |
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240 void patch_constant_pool(constantPoolHandle cp, int index, Handle patch, TRAPS); |
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241 |
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242 // Wrapper for constantTag.is_klass_[or_]reference. |
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243 // In older versions of the VM, klassOops cannot sneak into early phases of |
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244 // constant pool construction, but in later versions they can. |
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245 // %%% Let's phase out the old is_klass_reference. |
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246 bool is_klass_reference(constantPoolHandle cp, int index) { |
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247 return ((LinkWellKnownClasses || EnableInvokeDynamic) |
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248 ? cp->tag_at(index).is_klass_or_reference() |
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249 : cp->tag_at(index).is_klass_reference()); |
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250 } |
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251 |
0 | 252 public: |
253 // Constructor | |
254 ClassFileParser(ClassFileStream* st) { set_stream(st); } | |
255 | |
256 // Parse .class file and return new klassOop. The klassOop is not hooked up | |
257 // to the system dictionary or any other structures, so a .class file can | |
258 // be loaded several times if desired. | |
259 // The system dictionary hookup is done by the caller. | |
260 // | |
261 // "parsed_name" is updated by this method, and is the name found | |
262 // while parsing the stream. | |
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263 instanceKlassHandle parseClassFile(Symbol* name, |
0 | 264 Handle class_loader, |
265 Handle protection_domain, | |
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266 TempNewSymbol& parsed_name, |
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267 bool verify, |
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268 TRAPS) { |
710 | 269 KlassHandle no_host_klass; |
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270 return parseClassFile(name, class_loader, protection_domain, no_host_klass, NULL, parsed_name, verify, THREAD); |
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271 } |
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272 instanceKlassHandle parseClassFile(Symbol* name, |
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273 Handle class_loader, |
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274 Handle protection_domain, |
710 | 275 KlassHandle host_klass, |
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276 GrowableArray<Handle>* cp_patches, |
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277 TempNewSymbol& parsed_name, |
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278 bool verify, |
0 | 279 TRAPS); |
280 | |
281 // Verifier checks | |
282 static void check_super_class_access(instanceKlassHandle this_klass, TRAPS); | |
283 static void check_super_interface_access(instanceKlassHandle this_klass, TRAPS); | |
284 static void check_final_method_override(instanceKlassHandle this_klass, TRAPS); | |
285 static void check_illegal_static_method(instanceKlassHandle this_klass, TRAPS); | |
286 }; | |
1972 | 287 |
288 #endif // SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP |