1 /*
2 * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
71 JVM_ACC_IS_VALUE_BASED_CLASS = 0x08000000, // True if klass is marked as a ValueBased class
72 JVM_ACC_IS_BEING_REDEFINED = 0x00100000, // True if the klass is being redefined.
73 JVM_ACC_HAS_RESOLVED_METHODS = 0x00200000, // True if the klass has resolved methods
74
75 // Klass* and Method* flags
76 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00400000,
77
78 JVM_ACC_PROMOTED_FLAGS = 0x00400000, // flags promoted from methods to the holding klass
79
80 // field flags
81 // Note: these flags must be defined in the low order 16 bits because
82 // InstanceKlass only stores a ushort worth of information from the
83 // AccessFlags value.
84 // These bits must not conflict with any other field-related access flags
85 // (e.g., ACC_ENUM).
86 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags.
87 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI
88 JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000, // field modification is watched by JVMTI
89 JVM_ACC_FIELD_INTERNAL = 0x00000400, // internal field, same as JVM_ACC_ABSTRACT
90 JVM_ACC_FIELD_STABLE = 0x00000020, // @Stable field, same as JVM_ACC_SYNCHRONIZED and JVM_ACC_SUPER
91 JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE = 0x00000100, // (static) final field updated outside (class) initializer, same as JVM_ACC_NATIVE
92 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
93
94 JVM_ACC_FIELD_INTERNAL_FLAGS = JVM_ACC_FIELD_ACCESS_WATCHED |
95 JVM_ACC_FIELD_MODIFICATION_WATCHED |
96 JVM_ACC_FIELD_INTERNAL |
97 JVM_ACC_FIELD_STABLE |
98 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE,
99
100 // flags accepted by set_field_flags()
101 JVM_ACC_FIELD_FLAGS = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
102
103 };
104
105
106 class AccessFlags {
107 friend class VMStructs;
108 private:
109 jint _flags;
110
111 public:
112 AccessFlags() : _flags(0) {}
113 explicit AccessFlags(jint flags) : _flags(flags) {}
114
115 // Java access flags
116 bool is_public () const { return (_flags & JVM_ACC_PUBLIC ) != 0; }
117 bool is_private () const { return (_flags & JVM_ACC_PRIVATE ) != 0; }
118 bool is_protected () const { return (_flags & JVM_ACC_PROTECTED ) != 0; }
119 bool is_static () const { return (_flags & JVM_ACC_STATIC ) != 0; }
120 bool is_final () const { return (_flags & JVM_ACC_FINAL ) != 0; }
121 bool is_synchronized() const { return (_flags & JVM_ACC_SYNCHRONIZED) != 0; }
122 bool is_super () const { return (_flags & JVM_ACC_SUPER ) != 0; }
123 bool is_volatile () const { return (_flags & JVM_ACC_VOLATILE ) != 0; }
124 bool is_transient () const { return (_flags & JVM_ACC_TRANSIENT ) != 0; }
125 bool is_native () const { return (_flags & JVM_ACC_NATIVE ) != 0; }
126 bool is_interface () const { return (_flags & JVM_ACC_INTERFACE ) != 0; }
127 bool is_abstract () const { return (_flags & JVM_ACC_ABSTRACT ) != 0; }
128
129 // Attribute flags
130 bool is_synthetic () const { return (_flags & JVM_ACC_SYNTHETIC ) != 0; }
131
132 // Method* flags
133 bool is_monitor_matching () const { return (_flags & JVM_ACC_MONITOR_MATCH ) != 0; }
134 bool has_monitor_bytecodes () const { return (_flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; }
135 bool has_loops () const { return (_flags & JVM_ACC_HAS_LOOPS ) != 0; }
136 bool loops_flag_init () const { return (_flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; }
137 bool queued_for_compilation () const { return (_flags & JVM_ACC_QUEUED ) != 0; }
138 bool is_not_c1_compilable () const { return (_flags & JVM_ACC_NOT_C1_COMPILABLE ) != 0; }
139 bool is_not_c2_compilable () const { return (_flags & JVM_ACC_NOT_C2_COMPILABLE ) != 0; }
140 bool is_not_c2_osr_compilable() const { return (_flags & JVM_ACC_NOT_C2_OSR_COMPILABLE ) != 0; }
141 bool has_linenumber_table () const { return (_flags & JVM_ACC_HAS_LINE_NUMBER_TABLE ) != 0; }
142 bool has_checked_exceptions () const { return (_flags & JVM_ACC_HAS_CHECKED_EXCEPTIONS ) != 0; }
143 bool has_jsrs () const { return (_flags & JVM_ACC_HAS_JSRS ) != 0; }
144 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; }
145 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; }
146 bool is_deleted () const { return (_flags & JVM_ACC_IS_DELETED ) != 0; }
147 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; }
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1 /*
2 * Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
71 JVM_ACC_IS_VALUE_BASED_CLASS = 0x08000000, // True if klass is marked as a ValueBased class
72 JVM_ACC_IS_BEING_REDEFINED = 0x00100000, // True if the klass is being redefined.
73 JVM_ACC_HAS_RESOLVED_METHODS = 0x00200000, // True if the klass has resolved methods
74
75 // Klass* and Method* flags
76 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00400000,
77
78 JVM_ACC_PROMOTED_FLAGS = 0x00400000, // flags promoted from methods to the holding klass
79
80 // field flags
81 // Note: these flags must be defined in the low order 16 bits because
82 // InstanceKlass only stores a ushort worth of information from the
83 // AccessFlags value.
84 // These bits must not conflict with any other field-related access flags
85 // (e.g., ACC_ENUM).
86 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags.
87 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI
88 JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000, // field modification is watched by JVMTI
89 JVM_ACC_FIELD_INTERNAL = 0x00000400, // internal field, same as JVM_ACC_ABSTRACT
90 JVM_ACC_FIELD_STABLE = 0x00000020, // @Stable field, same as JVM_ACC_SYNCHRONIZED and JVM_ACC_SUPER
91 JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE = 0x00000200, // (static) final field updated outside (class) initializer, same as JVM_ACC_NATIVE
92 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
93
94 JVM_ACC_FIELD_INTERNAL_FLAGS = JVM_ACC_FIELD_ACCESS_WATCHED |
95 JVM_ACC_FIELD_MODIFICATION_WATCHED |
96 JVM_ACC_FIELD_INTERNAL |
97 JVM_ACC_FIELD_STABLE |
98 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE,
99
100 // flags accepted by set_field_flags()
101 JVM_ACC_FIELD_FLAGS = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
102
103 };
104
105
106 class AccessFlags {
107 friend class VMStructs;
108 private:
109 jint _flags;
110
111 public:
112 AccessFlags() : _flags(0) {}
113 explicit AccessFlags(jint flags) : _flags(flags) {}
114
115 // Java access flags
116 bool is_public () const { return (_flags & JVM_ACC_PUBLIC ) != 0; }
117 bool is_private () const { return (_flags & JVM_ACC_PRIVATE ) != 0; }
118 bool is_protected () const { return (_flags & JVM_ACC_PROTECTED ) != 0; }
119 bool is_static () const { return (_flags & JVM_ACC_STATIC ) != 0; }
120 bool is_final () const { return (_flags & JVM_ACC_FINAL ) != 0; }
121 bool is_synchronized() const { return (_flags & JVM_ACC_SYNCHRONIZED) != 0; }
122 bool is_super () const { return (_flags & JVM_ACC_SUPER ) != 0; }
123 bool is_volatile () const { return (_flags & JVM_ACC_VOLATILE ) != 0; }
124 bool is_transient () const { return (_flags & JVM_ACC_TRANSIENT ) != 0; }
125 bool is_native () const { return (_flags & JVM_ACC_NATIVE ) != 0; }
126 bool is_interface () const { return (_flags & JVM_ACC_INTERFACE ) != 0; }
127 bool is_abstract () const { return (_flags & JVM_ACC_ABSTRACT ) != 0; }
128 bool is_value_class () const { return (_flags & JVM_ACC_VALUE ) != 0; }
129 bool is_primitive_class () const { return (_flags & JVM_ACC_PRIMITIVE ) != 0; }
130 bool is_identity_class () const { return (_flags & JVM_ACC_IDENTITY ) != 0; }
131 bool is_permits_value_class () const { return (_flags & JVM_ACC_PERMITS_VALUE ) != 0; }
132
133 // Attribute flags
134 bool is_synthetic () const { return (_flags & JVM_ACC_SYNTHETIC ) != 0; }
135
136 // Method* flags
137 bool is_monitor_matching () const { return (_flags & JVM_ACC_MONITOR_MATCH ) != 0; }
138 bool has_monitor_bytecodes () const { return (_flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; }
139 bool has_loops () const { return (_flags & JVM_ACC_HAS_LOOPS ) != 0; }
140 bool loops_flag_init () const { return (_flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; }
141 bool queued_for_compilation () const { return (_flags & JVM_ACC_QUEUED ) != 0; }
142 bool is_not_c1_compilable () const { return (_flags & JVM_ACC_NOT_C1_COMPILABLE ) != 0; }
143 bool is_not_c2_compilable () const { return (_flags & JVM_ACC_NOT_C2_COMPILABLE ) != 0; }
144 bool is_not_c2_osr_compilable() const { return (_flags & JVM_ACC_NOT_C2_OSR_COMPILABLE ) != 0; }
145 bool has_linenumber_table () const { return (_flags & JVM_ACC_HAS_LINE_NUMBER_TABLE ) != 0; }
146 bool has_checked_exceptions () const { return (_flags & JVM_ACC_HAS_CHECKED_EXCEPTIONS ) != 0; }
147 bool has_jsrs () const { return (_flags & JVM_ACC_HAS_JSRS ) != 0; }
148 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; }
149 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; }
150 bool is_deleted () const { return (_flags & JVM_ACC_IS_DELETED ) != 0; }
151 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; }
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