Mercurial > hg > truffle
annotate src/share/vm/classfile/classFileParser.hpp @ 5983:749b1464aa81
Merge
| author | acorn |
|---|---|
| date | Sun, 01 Apr 2012 17:04:26 -0400 |
| parents | f7c4174b33ba fc9d8850ab8b |
| children | 8150fa46d2ed 6d8f36bcef55 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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 | |
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71 void parse_constant_pool_entries(Handle class_loader, |
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72 constantPoolHandle cp, int length, TRAPS); |
| 0 | 73 |
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74 constantPoolHandle parse_constant_pool(Handle class_loader, TRAPS); |
| 0 | 75 |
| 76 // Interface parsing | |
| 77 objArrayHandle parse_interfaces(constantPoolHandle cp, | |
| 78 int length, | |
| 79 Handle class_loader, | |
| 80 Handle protection_domain, | |
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81 Symbol* class_name, |
| 0 | 82 TRAPS); |
| 83 | |
| 84 // Field parsing | |
| 85 void parse_field_attributes(constantPoolHandle cp, u2 attributes_count, | |
| 86 bool is_static, u2 signature_index, | |
| 87 u2* constantvalue_index_addr, | |
| 88 bool* is_synthetic_addr, | |
| 89 u2* generic_signature_index_addr, | |
| 90 typeArrayHandle* field_annotations, TRAPS); | |
| 3938 | 91 typeArrayHandle parse_fields(Symbol* class_name, |
| 92 constantPoolHandle cp, bool is_interface, | |
| 93 FieldAllocationCount *fac, | |
| 94 objArrayHandle* fields_annotations, | |
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95 u2* java_fields_count_ptr, TRAPS); |
| 0 | 96 |
| 97 // Method parsing | |
| 98 methodHandle parse_method(constantPoolHandle cp, bool is_interface, | |
| 99 AccessFlags* promoted_flags, | |
| 100 typeArrayHandle* method_annotations, | |
| 101 typeArrayHandle* method_parameter_annotations, | |
| 102 typeArrayHandle* method_default_annotations, | |
| 103 TRAPS); | |
| 104 objArrayHandle parse_methods (constantPoolHandle cp, bool is_interface, | |
| 105 AccessFlags* promoted_flags, | |
| 106 bool* has_final_method, | |
| 107 objArrayOop* methods_annotations_oop, | |
| 108 objArrayOop* methods_parameter_annotations_oop, | |
| 109 objArrayOop* methods_default_annotations_oop, | |
| 110 TRAPS); | |
| 111 typeArrayHandle sort_methods (objArrayHandle methods, | |
| 112 objArrayHandle methods_annotations, | |
| 113 objArrayHandle methods_parameter_annotations, | |
| 114 objArrayHandle methods_default_annotations, | |
| 115 TRAPS); | |
| 116 typeArrayHandle parse_exception_table(u4 code_length, u4 exception_table_length, | |
| 117 constantPoolHandle cp, TRAPS); | |
| 118 void parse_linenumber_table( | |
| 119 u4 code_attribute_length, u4 code_length, | |
| 120 CompressedLineNumberWriteStream** write_stream, TRAPS); | |
| 121 u2* parse_localvariable_table(u4 code_length, u2 max_locals, u4 code_attribute_length, | |
| 122 constantPoolHandle cp, u2* localvariable_table_length, | |
| 123 bool isLVTT, TRAPS); | |
| 124 u2* parse_checked_exceptions(u2* checked_exceptions_length, u4 method_attribute_length, | |
| 125 constantPoolHandle cp, TRAPS); | |
| 126 void parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, | |
| 127 u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS); | |
| 128 typeArrayOop parse_stackmap_table(u4 code_attribute_length, TRAPS); | |
| 129 | |
| 130 // Classfile attribute parsing | |
| 131 void parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
| 132 void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, | |
| 133 instanceKlassHandle k, int length, TRAPS); | |
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134 u2 parse_classfile_inner_classes_attribute(u1* inner_classes_attribute_start, |
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135 bool parsed_enclosingmethod_attribute, |
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136 u2 enclosing_method_class_index, |
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137 u2 enclosing_method_method_index, |
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138 constantPoolHandle cp, |
| 0 | 139 instanceKlassHandle k, TRAPS); |
| 140 void parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
| 141 void parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
| 142 void parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); | |
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143 void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k, u4 attribute_length, TRAPS); |
| 0 | 144 |
| 145 // Annotations handling | |
| 146 typeArrayHandle assemble_annotations(u1* runtime_visible_annotations, | |
| 147 int runtime_visible_annotations_length, | |
| 148 u1* runtime_invisible_annotations, | |
| 149 int runtime_invisible_annotations_length, TRAPS); | |
| 150 | |
| 151 // Final setup | |
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152 unsigned int compute_oop_map_count(instanceKlassHandle super, |
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153 unsigned int nonstatic_oop_count, |
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154 int first_nonstatic_oop_offset); |
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155 void fill_oop_maps(instanceKlassHandle k, |
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156 unsigned int nonstatic_oop_map_count, |
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157 int* nonstatic_oop_offsets, |
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158 unsigned int* nonstatic_oop_counts); |
| 0 | 159 void set_precomputed_flags(instanceKlassHandle k); |
| 160 objArrayHandle compute_transitive_interfaces(instanceKlassHandle super, | |
| 161 objArrayHandle local_ifs, TRAPS); | |
| 162 | |
| 163 // Format checker methods | |
| 164 void classfile_parse_error(const char* msg, TRAPS); | |
| 165 void classfile_parse_error(const char* msg, int index, TRAPS); | |
| 166 void classfile_parse_error(const char* msg, const char *name, TRAPS); | |
| 167 void classfile_parse_error(const char* msg, int index, const char *name, TRAPS); | |
| 168 inline void guarantee_property(bool b, const char* msg, TRAPS) { | |
| 169 if (!b) { classfile_parse_error(msg, CHECK); } | |
| 170 } | |
| 171 | |
| 172 inline void assert_property(bool b, const char* msg, TRAPS) { | |
| 173 #ifdef ASSERT | |
| 174 if (!b) { fatal(msg); } | |
| 175 #endif | |
| 176 } | |
| 177 | |
| 178 inline void check_property(bool property, const char* msg, int index, TRAPS) { | |
| 179 if (_need_verify) { | |
| 180 guarantee_property(property, msg, index, CHECK); | |
| 181 } else { | |
| 182 assert_property(property, msg, CHECK); | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 inline void check_property(bool property, const char* msg, TRAPS) { | |
| 187 if (_need_verify) { | |
| 188 guarantee_property(property, msg, CHECK); | |
| 189 } else { | |
| 190 assert_property(property, msg, CHECK); | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 inline void guarantee_property(bool b, const char* msg, int index, TRAPS) { | |
| 195 if (!b) { classfile_parse_error(msg, index, CHECK); } | |
| 196 } | |
| 197 inline void guarantee_property(bool b, const char* msg, const char *name, TRAPS) { | |
| 198 if (!b) { classfile_parse_error(msg, name, CHECK); } | |
| 199 } | |
| 200 inline void guarantee_property(bool b, const char* msg, int index, const char *name, TRAPS) { | |
| 201 if (!b) { classfile_parse_error(msg, index, name, CHECK); } | |
| 202 } | |
| 203 | |
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204 void throwIllegalSignature( |
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205 const char* type, Symbol* name, Symbol* sig, TRAPS); |
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206 |
| 0 | 207 bool is_supported_version(u2 major, u2 minor); |
| 208 bool has_illegal_visibility(jint flags); | |
| 209 | |
| 210 void verify_constantvalue(int constantvalue_index, int signature_index, constantPoolHandle cp, TRAPS); | |
| 211 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS); | |
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212 void verify_legal_class_name(Symbol* name, TRAPS); |
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213 void verify_legal_field_name(Symbol* name, TRAPS); |
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214 void verify_legal_method_name(Symbol* name, TRAPS); |
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215 void verify_legal_field_signature(Symbol* fieldname, Symbol* signature, TRAPS); |
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216 int verify_legal_method_signature(Symbol* methodname, Symbol* signature, TRAPS); |
| 0 | 217 void verify_legal_class_modifiers(jint flags, TRAPS); |
| 218 void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS); | |
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219 void verify_legal_method_modifiers(jint flags, bool is_interface, Symbol* name, TRAPS); |
| 0 | 220 bool verify_unqualified_name(char* name, unsigned int length, int type); |
| 221 char* skip_over_field_name(char* name, bool slash_ok, unsigned int length); | |
| 222 char* skip_over_field_signature(char* signature, bool void_ok, unsigned int length, TRAPS); | |
| 223 | |
| 710 | 224 bool is_anonymous() { |
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225 assert(EnableInvokeDynamic || _host_klass.is_null(), ""); |
| 710 | 226 return _host_klass.not_null(); |
| 227 } | |
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228 bool has_cp_patch_at(int index) { |
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229 assert(EnableInvokeDynamic, ""); |
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230 assert(index >= 0, "oob"); |
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231 return (_cp_patches != NULL |
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232 && index < _cp_patches->length() |
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233 && _cp_patches->adr_at(index)->not_null()); |
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234 } |
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235 Handle cp_patch_at(int index) { |
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236 assert(has_cp_patch_at(index), "oob"); |
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237 return _cp_patches->at(index); |
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238 } |
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239 Handle clear_cp_patch_at(int index) { |
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240 Handle patch = cp_patch_at(index); |
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241 _cp_patches->at_put(index, Handle()); |
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242 assert(!has_cp_patch_at(index), ""); |
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243 return patch; |
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244 } |
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245 void patch_constant_pool(constantPoolHandle cp, int index, Handle patch, TRAPS); |
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246 |
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247 // Wrapper for constantTag.is_klass_[or_]reference. |
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248 // In older versions of the VM, klassOops cannot sneak into early phases of |
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249 // constant pool construction, but in later versions they can. |
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250 // %%% Let's phase out the old is_klass_reference. |
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251 bool is_klass_reference(constantPoolHandle cp, int index) { |
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252 return ((LinkWellKnownClasses || EnableInvokeDynamic) |
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253 ? cp->tag_at(index).is_klass_or_reference() |
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254 : cp->tag_at(index).is_klass_reference()); |
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255 } |
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256 |
| 0 | 257 public: |
| 258 // Constructor | |
| 259 ClassFileParser(ClassFileStream* st) { set_stream(st); } | |
| 260 | |
| 261 // Parse .class file and return new klassOop. The klassOop is not hooked up | |
| 262 // to the system dictionary or any other structures, so a .class file can | |
| 263 // be loaded several times if desired. | |
| 264 // The system dictionary hookup is done by the caller. | |
| 265 // | |
| 266 // "parsed_name" is updated by this method, and is the name found | |
| 267 // while parsing the stream. | |
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268 instanceKlassHandle parseClassFile(Symbol* name, |
| 0 | 269 Handle class_loader, |
| 270 Handle protection_domain, | |
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271 TempNewSymbol& parsed_name, |
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272 bool verify, |
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273 TRAPS) { |
| 710 | 274 KlassHandle no_host_klass; |
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275 return parseClassFile(name, class_loader, protection_domain, no_host_klass, NULL, parsed_name, verify, THREAD); |
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276 } |
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277 instanceKlassHandle parseClassFile(Symbol* name, |
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278 Handle class_loader, |
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279 Handle protection_domain, |
| 710 | 280 KlassHandle host_klass, |
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281 GrowableArray<Handle>* cp_patches, |
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282 TempNewSymbol& parsed_name, |
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283 bool verify, |
| 0 | 284 TRAPS); |
| 285 | |
| 286 // Verifier checks | |
| 287 static void check_super_class_access(instanceKlassHandle this_klass, TRAPS); | |
| 288 static void check_super_interface_access(instanceKlassHandle this_klass, TRAPS); | |
| 289 static void check_final_method_override(instanceKlassHandle this_klass, TRAPS); | |
| 290 static void check_illegal_static_method(instanceKlassHandle this_klass, TRAPS); | |
| 291 }; | |
| 1972 | 292 |
| 293 #endif // SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP |