1029 CHECK);
1030 }
1031 }
1032 }
1033
1034 class AnnotationCollector : public ResourceObj{
1035 public:
1036 enum Location { _in_field, _in_method, _in_class };
1037 enum ID {
1038 _unknown = 0,
1039 _method_CallerSensitive,
1040 _method_ForceInline,
1041 _method_DontInline,
1042 _method_InjectedProfile,
1043 _method_LambdaForm_Compiled,
1044 _method_LambdaForm_Hidden,
1045 _method_HotSpotIntrinsicCandidate,
1046 _jdk_internal_vm_annotation_Contended,
1047 _field_Stable,
1048 _jdk_internal_vm_annotation_ReservedStackAccess,
1049 _jvm_internal_value_ValueCapableClass,
1050 _annotation_LIMIT
1051 };
1052 const Location _location;
1053 int _annotations_present;
1054 u2 _contended_group;
1055
1056 AnnotationCollector(Location location)
1057 : _location(location), _annotations_present(0)
1058 {
1059 assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, "");
1060 }
1061 // If this annotation name has an ID, report it (or _none).
1062 ID annotation_index(const ClassLoaderData* loader_data, const Symbol* name);
1063 // Set the annotation name:
1064 void set_annotation(ID id) {
1065 assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
1066 _annotations_present |= nth_bit((int)id);
1067 }
1068
1069 void remove_annotation(ID id) {
1070 assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
1071 _annotations_present &= ~nth_bit((int)id);
1072 }
1073
1074 // Report if the annotation is present.
1075 bool has_any_annotations() const { return _annotations_present != 0; }
1076 bool has_annotation(ID id) const { return (nth_bit((int)id) & _annotations_present) != 0; }
1077
1078 void set_contended_group(u2 group) { _contended_group = group; }
1079 u2 contended_group() const { return _contended_group; }
1080
1081 bool is_contended() const { return has_annotation(_jdk_internal_vm_annotation_Contended); }
1082
1083 void set_stable(bool stable) { set_annotation(_field_Stable); }
1084 bool is_stable() const { return has_annotation(_field_Stable); }
1085
1086 bool is_value_capable_class() const { return has_annotation(_jvm_internal_value_ValueCapableClass); }
1087 };
1088
1089 // This class also doubles as a holder for metadata cleanup.
1090 class ClassFileParser::FieldAnnotationCollector : public AnnotationCollector {
1091 private:
1092 ClassLoaderData* _loader_data;
1093 AnnotationArray* _field_annotations;
1094 AnnotationArray* _field_type_annotations;
1095 public:
1096 FieldAnnotationCollector(ClassLoaderData* loader_data) :
1097 AnnotationCollector(_in_field),
1098 _loader_data(loader_data),
1099 _field_annotations(NULL),
1100 _field_type_annotations(NULL) {}
1101 ~FieldAnnotationCollector();
1102 void apply_to(FieldInfo* f);
1103 AnnotationArray* field_annotations() { return _field_annotations; }
1104 AnnotationArray* field_type_annotations() { return _field_type_annotations; }
1105
1106 void set_field_annotations(AnnotationArray* a) { _field_annotations = a; }
2117 }
2118 case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Stable_signature): {
2119 if (_location != _in_field) break; // only allow for fields
2120 if (!privileged) break; // only allow in privileged code
2121 return _field_Stable;
2122 }
2123 case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Contended_signature): {
2124 if (_location != _in_field && _location != _in_class) {
2125 break; // only allow for fields and classes
2126 }
2127 if (!EnableContended || (RestrictContended && !privileged)) {
2128 break; // honor privileges
2129 }
2130 return _jdk_internal_vm_annotation_Contended;
2131 }
2132 case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_ReservedStackAccess_signature): {
2133 if (_location != _in_method) break; // only allow for methods
2134 if (RestrictReservedStack && !privileged) break; // honor privileges
2135 return _jdk_internal_vm_annotation_ReservedStackAccess;
2136 }
2137 case vmSymbols::VM_SYMBOL_ENUM_NAME(jvm_internal_value_ValueCapableClass_signature) : {
2138 if (_location != _in_class) {
2139 break;
2140 }
2141 return _jvm_internal_value_ValueCapableClass;
2142 }
2143 default: {
2144 break;
2145 }
2146 }
2147 return AnnotationCollector::_unknown;
2148 }
2149
2150 void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) {
2151 if (is_contended())
2152 f->set_contended_group(contended_group());
2153 if (is_stable())
2154 f->set_stable(true);
2155 }
2156
2157 ClassFileParser::FieldAnnotationCollector::~FieldAnnotationCollector() {
2158 // If there's an error deallocate metadata for field annotations
2159 MetadataFactory::free_array<u1>(_loader_data, _field_annotations);
2160 MetadataFactory::free_array<u1>(_loader_data, _field_type_annotations);
2161 }
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1029 CHECK);
1030 }
1031 }
1032 }
1033
1034 class AnnotationCollector : public ResourceObj{
1035 public:
1036 enum Location { _in_field, _in_method, _in_class };
1037 enum ID {
1038 _unknown = 0,
1039 _method_CallerSensitive,
1040 _method_ForceInline,
1041 _method_DontInline,
1042 _method_InjectedProfile,
1043 _method_LambdaForm_Compiled,
1044 _method_LambdaForm_Hidden,
1045 _method_HotSpotIntrinsicCandidate,
1046 _jdk_internal_vm_annotation_Contended,
1047 _field_Stable,
1048 _jdk_internal_vm_annotation_ReservedStackAccess,
1049 _jdk_incubator_mvt_ValueCapableClass,
1050 _annotation_LIMIT
1051 };
1052 const Location _location;
1053 int _annotations_present;
1054 u2 _contended_group;
1055
1056 AnnotationCollector(Location location)
1057 : _location(location), _annotations_present(0)
1058 {
1059 assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, "");
1060 }
1061 // If this annotation name has an ID, report it (or _none).
1062 ID annotation_index(const ClassLoaderData* loader_data, const Symbol* name);
1063 // Set the annotation name:
1064 void set_annotation(ID id) {
1065 assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
1066 _annotations_present |= nth_bit((int)id);
1067 }
1068
1069 void remove_annotation(ID id) {
1070 assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
1071 _annotations_present &= ~nth_bit((int)id);
1072 }
1073
1074 // Report if the annotation is present.
1075 bool has_any_annotations() const { return _annotations_present != 0; }
1076 bool has_annotation(ID id) const { return (nth_bit((int)id) & _annotations_present) != 0; }
1077
1078 void set_contended_group(u2 group) { _contended_group = group; }
1079 u2 contended_group() const { return _contended_group; }
1080
1081 bool is_contended() const { return has_annotation(_jdk_internal_vm_annotation_Contended); }
1082
1083 void set_stable(bool stable) { set_annotation(_field_Stable); }
1084 bool is_stable() const { return has_annotation(_field_Stable); }
1085
1086 bool is_value_capable_class() const { return has_annotation(_jdk_incubator_mvt_ValueCapableClass); }
1087 };
1088
1089 // This class also doubles as a holder for metadata cleanup.
1090 class ClassFileParser::FieldAnnotationCollector : public AnnotationCollector {
1091 private:
1092 ClassLoaderData* _loader_data;
1093 AnnotationArray* _field_annotations;
1094 AnnotationArray* _field_type_annotations;
1095 public:
1096 FieldAnnotationCollector(ClassLoaderData* loader_data) :
1097 AnnotationCollector(_in_field),
1098 _loader_data(loader_data),
1099 _field_annotations(NULL),
1100 _field_type_annotations(NULL) {}
1101 ~FieldAnnotationCollector();
1102 void apply_to(FieldInfo* f);
1103 AnnotationArray* field_annotations() { return _field_annotations; }
1104 AnnotationArray* field_type_annotations() { return _field_type_annotations; }
1105
1106 void set_field_annotations(AnnotationArray* a) { _field_annotations = a; }
2117 }
2118 case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Stable_signature): {
2119 if (_location != _in_field) break; // only allow for fields
2120 if (!privileged) break; // only allow in privileged code
2121 return _field_Stable;
2122 }
2123 case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Contended_signature): {
2124 if (_location != _in_field && _location != _in_class) {
2125 break; // only allow for fields and classes
2126 }
2127 if (!EnableContended || (RestrictContended && !privileged)) {
2128 break; // honor privileges
2129 }
2130 return _jdk_internal_vm_annotation_Contended;
2131 }
2132 case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_ReservedStackAccess_signature): {
2133 if (_location != _in_method) break; // only allow for methods
2134 if (RestrictReservedStack && !privileged) break; // honor privileges
2135 return _jdk_internal_vm_annotation_ReservedStackAccess;
2136 }
2137 case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_incubator_mvt_ValueCapableClass_signature) : {
2138 if (_location != _in_class) {
2139 break;
2140 }
2141 return _jdk_incubator_mvt_ValueCapableClass;
2142 }
2143 default: {
2144 break;
2145 }
2146 }
2147 return AnnotationCollector::_unknown;
2148 }
2149
2150 void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) {
2151 if (is_contended())
2152 f->set_contended_group(contended_group());
2153 if (is_stable())
2154 f->set_stable(true);
2155 }
2156
2157 ClassFileParser::FieldAnnotationCollector::~FieldAnnotationCollector() {
2158 // If there's an error deallocate metadata for field annotations
2159 MetadataFactory::free_array<u1>(_loader_data, _field_annotations);
2160 MetadataFactory::free_array<u1>(_loader_data, _field_type_annotations);
2161 }
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