Mercurial > hg > truffle
comparison src/share/vm/oops/method.cpp @ 8880:0ca3dd0ffaba
Merge
author | bharadwaj |
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date | Thu, 04 Apr 2013 17:01:34 -0700 |
parents | 0c3ee6f1fa23 16885e702c88 |
children | b9a918201d47 aeaca88565e6 |
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8859:0c039865ef2b | 8880:0ca3dd0ffaba |
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965 | 965 |
966 // caching this method should be just fine | 966 // caching this method should be just fine |
967 return false; | 967 return false; |
968 } | 968 } |
969 | 969 |
970 | |
971 /** | |
972 * Returns true if this is one of the specially treated methods for | |
973 * security related stack walks (like Reflection.getCallerClass). | |
974 */ | |
975 bool Method::is_ignored_by_security_stack_walk() const { | |
976 const bool use_new_reflection = JDK_Version::is_gte_jdk14x_version() && UseNewReflection; | |
977 | |
978 assert(intrinsic_id() != vmIntrinsics::_invoke || Universe::reflect_invoke_cache()->is_same_method((Method*)this), "sanity"); | |
979 if (intrinsic_id() == vmIntrinsics::_invoke) { | |
980 // This is Method.invoke() -- ignore it | |
981 return true; | |
982 } | |
983 if (use_new_reflection && | |
984 method_holder()->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass())) { | |
985 // This is an auxilary frame -- ignore it | |
986 return true; | |
987 } | |
988 if (is_method_handle_intrinsic() || is_compiled_lambda_form()) { | |
989 // This is an internal adapter frame for method handles -- ignore it | |
990 return true; | |
991 } | |
992 return false; | |
993 } | |
994 | |
995 | |
970 // Constant pool structure for invoke methods: | 996 // Constant pool structure for invoke methods: |
971 enum { | 997 enum { |
972 _imcp_invoke_name = 1, // utf8: 'invokeExact', etc. | 998 _imcp_invoke_name = 1, // utf8: 'invokeExact', etc. |
973 _imcp_invoke_signature, // utf8: (variable Symbol*) | 999 _imcp_invoke_signature, // utf8: (variable Symbol*) |
974 _imcp_limit | 1000 _imcp_limit |
1178 vmSymbols::SID Method::klass_id_for_intrinsics(Klass* holder) { | 1204 vmSymbols::SID Method::klass_id_for_intrinsics(Klass* holder) { |
1179 // if loader is not the default loader (i.e., != NULL), we can't know the intrinsics | 1205 // if loader is not the default loader (i.e., != NULL), we can't know the intrinsics |
1180 // because we are not loading from core libraries | 1206 // because we are not loading from core libraries |
1181 // exception: the AES intrinsics come from lib/ext/sunjce_provider.jar | 1207 // exception: the AES intrinsics come from lib/ext/sunjce_provider.jar |
1182 // which does not use the class default class loader so we check for its loader here | 1208 // which does not use the class default class loader so we check for its loader here |
1183 if ((InstanceKlass::cast(holder)->class_loader() != NULL) && | 1209 InstanceKlass* ik = InstanceKlass::cast(holder); |
1184 InstanceKlass::cast(holder)->class_loader()->klass()->name() != vmSymbols::sun_misc_Launcher_ExtClassLoader()) { | 1210 if ((ik->class_loader() != NULL) && !SystemDictionary::is_ext_class_loader(ik->class_loader())) { |
1185 return vmSymbols::NO_SID; // regardless of name, no intrinsics here | 1211 return vmSymbols::NO_SID; // regardless of name, no intrinsics here |
1186 } | 1212 } |
1187 | 1213 |
1188 // see if the klass name is well-known: | 1214 // see if the klass name is well-known: |
1189 Symbol* klass_name = InstanceKlass::cast(holder)->name(); | 1215 Symbol* klass_name = ik->name(); |
1190 return vmSymbols::find_sid(klass_name); | 1216 return vmSymbols::find_sid(klass_name); |
1191 } | 1217 } |
1192 | 1218 |
1193 void Method::init_intrinsic_id() { | 1219 void Method::init_intrinsic_id() { |
1194 assert(_intrinsic_id == vmIntrinsics::_none, "do this just once"); | 1220 assert(_intrinsic_id == vmIntrinsics::_none, "do this just once"); |