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comparison src/share/vm/oops/method.cpp @ 8866:16885e702c88

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7198429: need checked categorization of caller-sensitive methods in the JDK Reviewed-by: kvn, jrose
author twisti
date Mon, 25 Mar 2013 17:13:26 -0700
parents 1fc4d4768b90
children 0ca3dd0ffaba
comparison
equal deleted inserted replaced
8865:818a1ac7da7a 8866:16885e702c88
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
1176 vmSymbols::SID Method::klass_id_for_intrinsics(Klass* holder) { 1202 vmSymbols::SID Method::klass_id_for_intrinsics(Klass* holder) {
1177 // if loader is not the default loader (i.e., != NULL), we can't know the intrinsics 1203 // if loader is not the default loader (i.e., != NULL), we can't know the intrinsics
1178 // because we are not loading from core libraries 1204 // because we are not loading from core libraries
1179 // exception: the AES intrinsics come from lib/ext/sunjce_provider.jar 1205 // exception: the AES intrinsics come from lib/ext/sunjce_provider.jar
1180 // which does not use the class default class loader so we check for its loader here 1206 // which does not use the class default class loader so we check for its loader here
1181 if ((InstanceKlass::cast(holder)->class_loader() != NULL) && 1207 InstanceKlass* ik = InstanceKlass::cast(holder);
1182 InstanceKlass::cast(holder)->class_loader()->klass()->name() != vmSymbols::sun_misc_Launcher_ExtClassLoader()) { 1208 if ((ik->class_loader() != NULL) && !SystemDictionary::is_ext_class_loader(ik->class_loader())) {
1183 return vmSymbols::NO_SID; // regardless of name, no intrinsics here 1209 return vmSymbols::NO_SID; // regardless of name, no intrinsics here
1184 } 1210 }
1185 1211
1186 // see if the klass name is well-known: 1212 // see if the klass name is well-known:
1187 Symbol* klass_name = InstanceKlass::cast(holder)->name(); 1213 Symbol* klass_name = ik->name();
1188 return vmSymbols::find_sid(klass_name); 1214 return vmSymbols::find_sid(klass_name);
1189 } 1215 }
1190 1216
1191 void Method::init_intrinsic_id() { 1217 void Method::init_intrinsic_id() {
1192 assert(_intrinsic_id == vmIntrinsics::_none, "do this just once"); 1218 assert(_intrinsic_id == vmIntrinsics::_none, "do this just once");