66 JVM_ACC_IS_CLONEABLE_FAST = (int)0x80000000,// True if klass implements the Cloneable interface and can be optimized in generated code
67 JVM_ACC_HAS_FINAL_METHOD = 0x01000000, // True if klass has final method
68 JVM_ACC_IS_SHARED_CLASS = 0x02000000, // True if klass is shared
69
70 // Klass* and Method* flags
71 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00200000,
72
73 JVM_ACC_PROMOTED_FLAGS = 0x00200000, // flags promoted from methods to the holding klass
74
75 // field flags
76 // Note: these flags must be defined in the low order 16 bits because
77 // InstanceKlass only stores a ushort worth of information from the
78 // AccessFlags value.
79 // These bits must not conflict with any other field-related access flags
80 // (e.g., ACC_ENUM).
81 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags.
82 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI
83 JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000, // field modification is watched by JVMTI
84 JVM_ACC_FIELD_INTERNAL = 0x00000400, // internal field, same as JVM_ACC_ABSTRACT
85 JVM_ACC_FIELD_STABLE = 0x00000020, // @Stable field, same as JVM_ACC_SYNCHRONIZED and JVM_ACC_SUPER
86 JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE = 0x00000100, // (static) final field updated outside (class) initializer, same as JVM_ACC_NATIVE
87 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
88
89 JVM_ACC_FIELD_INTERNAL_FLAGS = JVM_ACC_FIELD_ACCESS_WATCHED |
90 JVM_ACC_FIELD_MODIFICATION_WATCHED |
91 JVM_ACC_FIELD_INTERNAL |
92 JVM_ACC_FIELD_STABLE |
93 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE,
94
95 // flags accepted by set_field_flags()
96 JVM_ACC_FIELD_FLAGS = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
97
98 };
99
100
101 class AccessFlags {
102 friend class VMStructs;
103 private:
104 jint _flags;
105
106 public:
107 AccessFlags() : _flags(0) {}
108 explicit AccessFlags(jint flags) : _flags(flags) {}
109
110 // Java access flags
111 bool is_public () const { return (_flags & JVM_ACC_PUBLIC ) != 0; }
112 bool is_private () const { return (_flags & JVM_ACC_PRIVATE ) != 0; }
113 bool is_protected () const { return (_flags & JVM_ACC_PROTECTED ) != 0; }
114 bool is_static () const { return (_flags & JVM_ACC_STATIC ) != 0; }
115 bool is_final () const { return (_flags & JVM_ACC_FINAL ) != 0; }
116 bool is_synchronized() const { return (_flags & JVM_ACC_SYNCHRONIZED) != 0; }
117 bool is_super () const { return (_flags & JVM_ACC_SUPER ) != 0; }
118 bool is_volatile () const { return (_flags & JVM_ACC_VOLATILE ) != 0; }
119 bool is_transient () const { return (_flags & JVM_ACC_TRANSIENT ) != 0; }
120 bool is_native () const { return (_flags & JVM_ACC_NATIVE ) != 0; }
121 bool is_interface () const { return (_flags & JVM_ACC_INTERFACE ) != 0; }
122 bool is_abstract () const { return (_flags & JVM_ACC_ABSTRACT ) != 0; }
123 bool is_strict () const { return (_flags & JVM_ACC_STRICT ) != 0; }
124
125 // Attribute flags
126 bool is_synthetic () const { return (_flags & JVM_ACC_SYNTHETIC ) != 0; }
127
128 // Method* flags
129 bool is_monitor_matching () const { return (_flags & JVM_ACC_MONITOR_MATCH ) != 0; }
130 bool has_monitor_bytecodes () const { return (_flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; }
131 bool has_loops () const { return (_flags & JVM_ACC_HAS_LOOPS ) != 0; }
132 bool loops_flag_init () const { return (_flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; }
133 bool queued_for_compilation () const { return (_flags & JVM_ACC_QUEUED ) != 0; }
134 bool is_not_c1_compilable () const { return (_flags & JVM_ACC_NOT_C1_COMPILABLE ) != 0; }
135 bool is_not_c2_compilable () const { return (_flags & JVM_ACC_NOT_C2_COMPILABLE ) != 0; }
136 bool is_not_c2_osr_compilable() const { return (_flags & JVM_ACC_NOT_C2_OSR_COMPILABLE ) != 0; }
137 bool has_linenumber_table () const { return (_flags & JVM_ACC_HAS_LINE_NUMBER_TABLE ) != 0; }
138 bool has_checked_exceptions () const { return (_flags & JVM_ACC_HAS_CHECKED_EXCEPTIONS ) != 0; }
139 bool has_jsrs () const { return (_flags & JVM_ACC_HAS_JSRS ) != 0; }
140 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; }
141 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; }
142 bool is_deleted () const { return (_flags & JVM_ACC_IS_DELETED ) != 0; }
143 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; }
193 // otherwise they are just changing a copy of the flags
194
195 // attribute flags
196 void set_is_synthetic() { atomic_set_bits(JVM_ACC_SYNTHETIC); }
197
198 // Method* flags
199 void set_monitor_matching() { atomic_set_bits(JVM_ACC_MONITOR_MATCH); }
200 void set_has_monitor_bytecodes() { atomic_set_bits(JVM_ACC_HAS_MONITOR_BYTECODES); }
201 void set_has_loops() { atomic_set_bits(JVM_ACC_HAS_LOOPS); }
202 void set_loops_flag_init() { atomic_set_bits(JVM_ACC_LOOPS_FLAG_INIT); }
203 void set_not_c1_compilable() { atomic_set_bits(JVM_ACC_NOT_C1_COMPILABLE); }
204 void set_not_c2_compilable() { atomic_set_bits(JVM_ACC_NOT_C2_COMPILABLE); }
205 void set_not_c2_osr_compilable() { atomic_set_bits(JVM_ACC_NOT_C2_OSR_COMPILABLE); }
206 void set_has_linenumber_table() { atomic_set_bits(JVM_ACC_HAS_LINE_NUMBER_TABLE); }
207 void set_has_checked_exceptions() { atomic_set_bits(JVM_ACC_HAS_CHECKED_EXCEPTIONS); }
208 void set_has_jsrs() { atomic_set_bits(JVM_ACC_HAS_JSRS); }
209 void set_is_old() { atomic_set_bits(JVM_ACC_IS_OLD); }
210 void set_is_obsolete() { atomic_set_bits(JVM_ACC_IS_OBSOLETE); }
211 void set_is_deleted() { atomic_set_bits(JVM_ACC_IS_DELETED); }
212 void set_is_prefixed_native() { atomic_set_bits(JVM_ACC_IS_PREFIXED_NATIVE); }
213
214 void clear_not_c1_compilable() { atomic_clear_bits(JVM_ACC_NOT_C1_COMPILABLE); }
215 void clear_not_c2_compilable() { atomic_clear_bits(JVM_ACC_NOT_C2_COMPILABLE); }
216 void clear_not_c2_osr_compilable() { atomic_clear_bits(JVM_ACC_NOT_C2_OSR_COMPILABLE); }
217 // Klass* flags
218 void set_has_vanilla_constructor() { atomic_set_bits(JVM_ACC_HAS_VANILLA_CONSTRUCTOR); }
219 void set_has_finalizer() { atomic_set_bits(JVM_ACC_HAS_FINALIZER); }
220 void set_has_final_method() { atomic_set_bits(JVM_ACC_HAS_FINAL_METHOD); }
221 void set_is_cloneable_fast() { atomic_set_bits(JVM_ACC_IS_CLONEABLE_FAST); }
222 void set_has_miranda_methods() { atomic_set_bits(JVM_ACC_HAS_MIRANDA_METHODS); }
223 void set_is_shared_class() { atomic_set_bits(JVM_ACC_IS_SHARED_CLASS); }
224
225 public:
226 // field flags
227 void set_is_field_access_watched(const bool value)
228 {
229 if (value) {
230 atomic_set_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
231 } else {
232 atomic_clear_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
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66 JVM_ACC_IS_CLONEABLE_FAST = (int)0x80000000,// True if klass implements the Cloneable interface and can be optimized in generated code
67 JVM_ACC_HAS_FINAL_METHOD = 0x01000000, // True if klass has final method
68 JVM_ACC_IS_SHARED_CLASS = 0x02000000, // True if klass is shared
69
70 // Klass* and Method* flags
71 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00200000,
72
73 JVM_ACC_PROMOTED_FLAGS = 0x00200000, // flags promoted from methods to the holding klass
74
75 // field flags
76 // Note: these flags must be defined in the low order 16 bits because
77 // InstanceKlass only stores a ushort worth of information from the
78 // AccessFlags value.
79 // These bits must not conflict with any other field-related access flags
80 // (e.g., ACC_ENUM).
81 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags.
82 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI
83 JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000, // field modification is watched by JVMTI
84 JVM_ACC_FIELD_INTERNAL = 0x00000400, // internal field, same as JVM_ACC_ABSTRACT
85 JVM_ACC_FIELD_STABLE = 0x00000020, // @Stable field, same as JVM_ACC_SYNCHRONIZED and JVM_ACC_SUPER
86 JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE = 0x00000200, // (static) final field updated outside (class) initializer, same as JVM_ACC_NATIVE
87 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
88 /* JVM_ACC_FLATTENABLE = 0x00000100, */ // To be enabled when ACC_FLATTENABLE is removed from java.base
89 JVM_ACC_FIELD_FLATTENED = 0x00008000, // flattened value field
90
91 JVM_ACC_FIELD_INTERNAL_FLAGS = JVM_ACC_FIELD_ACCESS_WATCHED |
92 JVM_ACC_FIELD_MODIFICATION_WATCHED |
93 JVM_ACC_FIELD_INTERNAL |
94 JVM_ACC_FIELD_STABLE |
95 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE |
96 JVM_ACC_FLATTENABLE |
97 JVM_ACC_FIELD_FLATTENED,
98
99 // flags accepted by set_field_flags()
100 JVM_ACC_FIELD_FLAGS = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
101
102 };
103
104
105 class AccessFlags {
106 friend class VMStructs;
107 private:
108 jint _flags;
109
110 public:
111 AccessFlags() : _flags(0) {}
112 explicit AccessFlags(jint flags) : _flags(flags) {}
113
114 // Java access flags
115 bool is_public () const { return (_flags & JVM_ACC_PUBLIC ) != 0; }
116 bool is_private () const { return (_flags & JVM_ACC_PRIVATE ) != 0; }
117 bool is_protected () const { return (_flags & JVM_ACC_PROTECTED ) != 0; }
118 bool is_static () const { return (_flags & JVM_ACC_STATIC ) != 0; }
119 bool is_final () const { return (_flags & JVM_ACC_FINAL ) != 0; }
120 bool is_synchronized() const { return (_flags & JVM_ACC_SYNCHRONIZED) != 0; }
121 bool is_super () const { return (_flags & JVM_ACC_SUPER ) != 0; }
122 bool is_volatile () const { return (_flags & JVM_ACC_VOLATILE ) != 0; }
123 bool is_transient () const { return (_flags & JVM_ACC_TRANSIENT ) != 0; }
124 bool is_native () const { return (_flags & JVM_ACC_NATIVE ) != 0; }
125 bool is_interface () const { return (_flags & JVM_ACC_INTERFACE ) != 0; }
126 bool is_abstract () const { return (_flags & JVM_ACC_ABSTRACT ) != 0; }
127 bool is_strict () const { return (_flags & JVM_ACC_STRICT ) != 0; }
128 bool is_value_type () const { return (_flags & JVM_ACC_VALUE ) != 0; }
129 bool is_flattenable () const { return (_flags & JVM_ACC_FLATTENABLE ) != 0; }
130
131 // Attribute flags
132 bool is_synthetic () const { return (_flags & JVM_ACC_SYNTHETIC ) != 0; }
133
134 // Method* flags
135 bool is_monitor_matching () const { return (_flags & JVM_ACC_MONITOR_MATCH ) != 0; }
136 bool has_monitor_bytecodes () const { return (_flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; }
137 bool has_loops () const { return (_flags & JVM_ACC_HAS_LOOPS ) != 0; }
138 bool loops_flag_init () const { return (_flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; }
139 bool queued_for_compilation () const { return (_flags & JVM_ACC_QUEUED ) != 0; }
140 bool is_not_c1_compilable () const { return (_flags & JVM_ACC_NOT_C1_COMPILABLE ) != 0; }
141 bool is_not_c2_compilable () const { return (_flags & JVM_ACC_NOT_C2_COMPILABLE ) != 0; }
142 bool is_not_c2_osr_compilable() const { return (_flags & JVM_ACC_NOT_C2_OSR_COMPILABLE ) != 0; }
143 bool has_linenumber_table () const { return (_flags & JVM_ACC_HAS_LINE_NUMBER_TABLE ) != 0; }
144 bool has_checked_exceptions () const { return (_flags & JVM_ACC_HAS_CHECKED_EXCEPTIONS ) != 0; }
145 bool has_jsrs () const { return (_flags & JVM_ACC_HAS_JSRS ) != 0; }
146 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; }
147 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; }
148 bool is_deleted () const { return (_flags & JVM_ACC_IS_DELETED ) != 0; }
149 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; }
199 // otherwise they are just changing a copy of the flags
200
201 // attribute flags
202 void set_is_synthetic() { atomic_set_bits(JVM_ACC_SYNTHETIC); }
203
204 // Method* flags
205 void set_monitor_matching() { atomic_set_bits(JVM_ACC_MONITOR_MATCH); }
206 void set_has_monitor_bytecodes() { atomic_set_bits(JVM_ACC_HAS_MONITOR_BYTECODES); }
207 void set_has_loops() { atomic_set_bits(JVM_ACC_HAS_LOOPS); }
208 void set_loops_flag_init() { atomic_set_bits(JVM_ACC_LOOPS_FLAG_INIT); }
209 void set_not_c1_compilable() { atomic_set_bits(JVM_ACC_NOT_C1_COMPILABLE); }
210 void set_not_c2_compilable() { atomic_set_bits(JVM_ACC_NOT_C2_COMPILABLE); }
211 void set_not_c2_osr_compilable() { atomic_set_bits(JVM_ACC_NOT_C2_OSR_COMPILABLE); }
212 void set_has_linenumber_table() { atomic_set_bits(JVM_ACC_HAS_LINE_NUMBER_TABLE); }
213 void set_has_checked_exceptions() { atomic_set_bits(JVM_ACC_HAS_CHECKED_EXCEPTIONS); }
214 void set_has_jsrs() { atomic_set_bits(JVM_ACC_HAS_JSRS); }
215 void set_is_old() { atomic_set_bits(JVM_ACC_IS_OLD); }
216 void set_is_obsolete() { atomic_set_bits(JVM_ACC_IS_OBSOLETE); }
217 void set_is_deleted() { atomic_set_bits(JVM_ACC_IS_DELETED); }
218 void set_is_prefixed_native() { atomic_set_bits(JVM_ACC_IS_PREFIXED_NATIVE); }
219 void set_is_flattenable() { atomic_set_bits(JVM_ACC_FLATTENABLE); }
220
221 void clear_not_c1_compilable() { atomic_clear_bits(JVM_ACC_NOT_C1_COMPILABLE); }
222 void clear_not_c2_compilable() { atomic_clear_bits(JVM_ACC_NOT_C2_COMPILABLE); }
223 void clear_not_c2_osr_compilable() { atomic_clear_bits(JVM_ACC_NOT_C2_OSR_COMPILABLE); }
224 // Klass* flags
225 void set_has_vanilla_constructor() { atomic_set_bits(JVM_ACC_HAS_VANILLA_CONSTRUCTOR); }
226 void set_has_finalizer() { atomic_set_bits(JVM_ACC_HAS_FINALIZER); }
227 void set_has_final_method() { atomic_set_bits(JVM_ACC_HAS_FINAL_METHOD); }
228 void set_is_cloneable_fast() { atomic_set_bits(JVM_ACC_IS_CLONEABLE_FAST); }
229 void set_has_miranda_methods() { atomic_set_bits(JVM_ACC_HAS_MIRANDA_METHODS); }
230 void set_is_shared_class() { atomic_set_bits(JVM_ACC_IS_SHARED_CLASS); }
231
232 public:
233 // field flags
234 void set_is_field_access_watched(const bool value)
235 {
236 if (value) {
237 atomic_set_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
238 } else {
239 atomic_clear_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
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