1 /* |
1 /* |
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
37 // HotSpot-specific access flags |
37 // HotSpot-specific access flags |
38 |
38 |
39 // flags actually put in .class file |
39 // flags actually put in .class file |
40 JVM_ACC_WRITTEN_FLAGS = 0x00007FFF, |
40 JVM_ACC_WRITTEN_FLAGS = 0x00007FFF, |
41 |
41 |
42 // methodOop flags |
42 // Method* flags |
43 JVM_ACC_MONITOR_MATCH = 0x10000000, // True if we know that monitorenter/monitorexit bytecodes match |
43 JVM_ACC_MONITOR_MATCH = 0x10000000, // True if we know that monitorenter/monitorexit bytecodes match |
44 JVM_ACC_HAS_MONITOR_BYTECODES = 0x20000000, // Method contains monitorenter/monitorexit bytecodes |
44 JVM_ACC_HAS_MONITOR_BYTECODES = 0x20000000, // Method contains monitorenter/monitorexit bytecodes |
45 JVM_ACC_HAS_LOOPS = 0x40000000, // Method has loops |
45 JVM_ACC_HAS_LOOPS = 0x40000000, // Method has loops |
46 JVM_ACC_LOOPS_FLAG_INIT = (int)0x80000000,// The loop flag has been initialized |
46 JVM_ACC_LOOPS_FLAG_INIT = (int)0x80000000,// The loop flag has been initialized |
47 JVM_ACC_QUEUED = 0x01000000, // Queued for compilation |
47 JVM_ACC_QUEUED = 0x01000000, // Queued for compilation |
52 JVM_ACC_HAS_CHECKED_EXCEPTIONS = 0x00400000, |
52 JVM_ACC_HAS_CHECKED_EXCEPTIONS = 0x00400000, |
53 JVM_ACC_HAS_JSRS = 0x00800000, |
53 JVM_ACC_HAS_JSRS = 0x00800000, |
54 JVM_ACC_IS_OLD = 0x00010000, // RedefineClasses() has replaced this method |
54 JVM_ACC_IS_OLD = 0x00010000, // RedefineClasses() has replaced this method |
55 JVM_ACC_IS_OBSOLETE = 0x00020000, // RedefineClasses() has made method obsolete |
55 JVM_ACC_IS_OBSOLETE = 0x00020000, // RedefineClasses() has made method obsolete |
56 JVM_ACC_IS_PREFIXED_NATIVE = 0x00040000, // JVMTI has prefixed this native method |
56 JVM_ACC_IS_PREFIXED_NATIVE = 0x00040000, // JVMTI has prefixed this native method |
57 |
57 JVM_ACC_ON_STACK = 0x00080000, // RedefinedClasses() is used on the stack |
58 // klassOop flags |
58 |
|
59 // Klass* flags |
59 JVM_ACC_HAS_MIRANDA_METHODS = 0x10000000, // True if this class has miranda methods in it's vtable |
60 JVM_ACC_HAS_MIRANDA_METHODS = 0x10000000, // True if this class has miranda methods in it's vtable |
60 JVM_ACC_HAS_VANILLA_CONSTRUCTOR = 0x20000000, // True if klass has a vanilla default constructor |
61 JVM_ACC_HAS_VANILLA_CONSTRUCTOR = 0x20000000, // True if klass has a vanilla default constructor |
61 JVM_ACC_HAS_FINALIZER = 0x40000000, // True if klass has a non-empty finalize() method |
62 JVM_ACC_HAS_FINALIZER = 0x40000000, // True if klass has a non-empty finalize() method |
62 JVM_ACC_IS_CLONEABLE = (int)0x80000000,// True if klass supports the Clonable interface |
63 JVM_ACC_IS_CLONEABLE = (int)0x80000000,// True if klass supports the Clonable interface |
63 JVM_ACC_HAS_FINAL_METHOD = 0x01000000, // True if klass has final method |
64 JVM_ACC_HAS_FINAL_METHOD = 0x01000000, // True if klass has final method |
64 |
65 |
65 // klassOop and methodOop flags |
66 // Klass* and Method* flags |
66 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00200000, |
67 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00200000, |
67 |
68 |
68 JVM_ACC_PROMOTED_FLAGS = 0x00200000, // flags promoted from methods to the holding klass |
69 JVM_ACC_PROMOTED_FLAGS = 0x00200000, // flags promoted from methods to the holding klass |
69 |
70 |
70 // field flags |
71 // field flags |
71 // Note: these flags must be defined in the low order 16 bits because |
72 // Note: these flags must be defined in the low order 16 bits because |
72 // instanceKlass only stores a ushort worth of information from the |
73 // InstanceKlass only stores a ushort worth of information from the |
73 // AccessFlags value. |
74 // AccessFlags value. |
74 // These bits must not conflict with any other field-related access flags |
75 // These bits must not conflict with any other field-related access flags |
75 // (e.g., ACC_ENUM). |
76 // (e.g., ACC_ENUM). |
76 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags. |
77 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags. |
77 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI |
78 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI |
112 bool is_strict () const { return (_flags & JVM_ACC_STRICT ) != 0; } |
113 bool is_strict () const { return (_flags & JVM_ACC_STRICT ) != 0; } |
113 |
114 |
114 // Attribute flags |
115 // Attribute flags |
115 bool is_synthetic () const { return (_flags & JVM_ACC_SYNTHETIC ) != 0; } |
116 bool is_synthetic () const { return (_flags & JVM_ACC_SYNTHETIC ) != 0; } |
116 |
117 |
117 // methodOop flags |
118 // Method* flags |
118 bool is_monitor_matching () const { return (_flags & JVM_ACC_MONITOR_MATCH ) != 0; } |
119 bool is_monitor_matching () const { return (_flags & JVM_ACC_MONITOR_MATCH ) != 0; } |
119 bool has_monitor_bytecodes () const { return (_flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; } |
120 bool has_monitor_bytecodes () const { return (_flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; } |
120 bool has_loops () const { return (_flags & JVM_ACC_HAS_LOOPS ) != 0; } |
121 bool has_loops () const { return (_flags & JVM_ACC_HAS_LOOPS ) != 0; } |
121 bool loops_flag_init () const { return (_flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; } |
122 bool loops_flag_init () const { return (_flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; } |
122 bool queued_for_compilation () const { return (_flags & JVM_ACC_QUEUED ) != 0; } |
123 bool queued_for_compilation () const { return (_flags & JVM_ACC_QUEUED ) != 0; } |
128 bool has_jsrs () const { return (_flags & JVM_ACC_HAS_JSRS ) != 0; } |
129 bool has_jsrs () const { return (_flags & JVM_ACC_HAS_JSRS ) != 0; } |
129 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; } |
130 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; } |
130 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; } |
131 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; } |
131 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; } |
132 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; } |
132 |
133 |
133 // klassOop flags |
134 // Klass* flags |
134 bool has_miranda_methods () const { return (_flags & JVM_ACC_HAS_MIRANDA_METHODS ) != 0; } |
135 bool has_miranda_methods () const { return (_flags & JVM_ACC_HAS_MIRANDA_METHODS ) != 0; } |
135 bool has_vanilla_constructor () const { return (_flags & JVM_ACC_HAS_VANILLA_CONSTRUCTOR) != 0; } |
136 bool has_vanilla_constructor () const { return (_flags & JVM_ACC_HAS_VANILLA_CONSTRUCTOR) != 0; } |
136 bool has_finalizer () const { return (_flags & JVM_ACC_HAS_FINALIZER ) != 0; } |
137 bool has_finalizer () const { return (_flags & JVM_ACC_HAS_FINALIZER ) != 0; } |
137 bool has_final_method () const { return (_flags & JVM_ACC_HAS_FINAL_METHOD ) != 0; } |
138 bool has_final_method () const { return (_flags & JVM_ACC_HAS_FINAL_METHOD ) != 0; } |
138 bool is_cloneable () const { return (_flags & JVM_ACC_IS_CLONEABLE ) != 0; } |
139 bool is_cloneable () const { return (_flags & JVM_ACC_IS_CLONEABLE ) != 0; } |
139 // klassOop and methodOop flags |
140 // Klass* and Method* flags |
140 bool has_localvariable_table () const { return (_flags & JVM_ACC_HAS_LOCAL_VARIABLE_TABLE) != 0; } |
141 bool has_localvariable_table () const { return (_flags & JVM_ACC_HAS_LOCAL_VARIABLE_TABLE) != 0; } |
141 void set_has_localvariable_table() { atomic_set_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); } |
142 void set_has_localvariable_table() { atomic_set_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); } |
142 void clear_has_localvariable_table() { atomic_clear_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); } |
143 void clear_has_localvariable_table() { atomic_clear_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); } |
143 |
144 |
144 // field flags |
145 // field flags |
145 bool is_field_access_watched() const { return (_flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; } |
146 bool is_field_access_watched() const { return (_flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; } |
146 bool is_field_modification_watched() const |
147 bool is_field_modification_watched() const |
147 { return (_flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; } |
148 { return (_flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; } |
|
149 bool on_stack() const { return (_flags & JVM_ACC_ON_STACK) != 0; } |
148 bool is_internal() const { return (_flags & JVM_ACC_FIELD_INTERNAL) != 0; } |
150 bool is_internal() const { return (_flags & JVM_ACC_FIELD_INTERNAL) != 0; } |
149 bool field_has_generic_signature() const |
151 bool field_has_generic_signature() const |
150 { return (_flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE) != 0; } |
152 { return (_flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE) != 0; } |
151 |
153 |
152 // get .class file flags |
154 // get .class file flags |
166 // Atomic update of flags |
168 // Atomic update of flags |
167 void atomic_set_bits(jint bits); |
169 void atomic_set_bits(jint bits); |
168 void atomic_clear_bits(jint bits); |
170 void atomic_clear_bits(jint bits); |
169 |
171 |
170 private: |
172 private: |
171 friend class methodOopDesc; |
173 friend class Method; |
172 friend class Klass; |
174 friend class Klass; |
173 friend class ClassFileParser; |
175 friend class ClassFileParser; |
174 // the functions below should only be called on the _access_flags inst var directly, |
176 // the functions below should only be called on the _access_flags inst var directly, |
175 // otherwise they are just changing a copy of the flags |
177 // otherwise they are just changing a copy of the flags |
176 |
178 |
177 // attribute flags |
179 // attribute flags |
178 void set_is_synthetic() { atomic_set_bits(JVM_ACC_SYNTHETIC); } |
180 void set_is_synthetic() { atomic_set_bits(JVM_ACC_SYNTHETIC); } |
179 |
181 |
180 // methodOop flags |
182 // Method* flags |
181 void set_monitor_matching() { atomic_set_bits(JVM_ACC_MONITOR_MATCH); } |
183 void set_monitor_matching() { atomic_set_bits(JVM_ACC_MONITOR_MATCH); } |
182 void set_has_monitor_bytecodes() { atomic_set_bits(JVM_ACC_HAS_MONITOR_BYTECODES); } |
184 void set_has_monitor_bytecodes() { atomic_set_bits(JVM_ACC_HAS_MONITOR_BYTECODES); } |
183 void set_has_loops() { atomic_set_bits(JVM_ACC_HAS_LOOPS); } |
185 void set_has_loops() { atomic_set_bits(JVM_ACC_HAS_LOOPS); } |
184 void set_loops_flag_init() { atomic_set_bits(JVM_ACC_LOOPS_FLAG_INIT); } |
186 void set_loops_flag_init() { atomic_set_bits(JVM_ACC_LOOPS_FLAG_INIT); } |
185 void set_not_c1_compilable() { atomic_set_bits(JVM_ACC_NOT_C1_COMPILABLE); } |
187 void set_not_c1_compilable() { atomic_set_bits(JVM_ACC_NOT_C1_COMPILABLE); } |
190 void set_has_jsrs() { atomic_set_bits(JVM_ACC_HAS_JSRS); } |
192 void set_has_jsrs() { atomic_set_bits(JVM_ACC_HAS_JSRS); } |
191 void set_is_old() { atomic_set_bits(JVM_ACC_IS_OLD); } |
193 void set_is_old() { atomic_set_bits(JVM_ACC_IS_OLD); } |
192 void set_is_obsolete() { atomic_set_bits(JVM_ACC_IS_OBSOLETE); } |
194 void set_is_obsolete() { atomic_set_bits(JVM_ACC_IS_OBSOLETE); } |
193 void set_is_prefixed_native() { atomic_set_bits(JVM_ACC_IS_PREFIXED_NATIVE); } |
195 void set_is_prefixed_native() { atomic_set_bits(JVM_ACC_IS_PREFIXED_NATIVE); } |
194 |
196 |
195 // klassOop flags |
197 // Klass* flags |
196 void set_has_vanilla_constructor() { atomic_set_bits(JVM_ACC_HAS_VANILLA_CONSTRUCTOR); } |
198 void set_has_vanilla_constructor() { atomic_set_bits(JVM_ACC_HAS_VANILLA_CONSTRUCTOR); } |
197 void set_has_finalizer() { atomic_set_bits(JVM_ACC_HAS_FINALIZER); } |
199 void set_has_finalizer() { atomic_set_bits(JVM_ACC_HAS_FINALIZER); } |
198 void set_has_final_method() { atomic_set_bits(JVM_ACC_HAS_FINAL_METHOD); } |
200 void set_has_final_method() { atomic_set_bits(JVM_ACC_HAS_FINAL_METHOD); } |
199 void set_is_cloneable() { atomic_set_bits(JVM_ACC_IS_CLONEABLE); } |
201 void set_is_cloneable() { atomic_set_bits(JVM_ACC_IS_CLONEABLE); } |
200 void set_has_miranda_methods() { atomic_set_bits(JVM_ACC_HAS_MIRANDA_METHODS); } |
202 void set_has_miranda_methods() { atomic_set_bits(JVM_ACC_HAS_MIRANDA_METHODS); } |
220 void set_field_has_generic_signature() |
222 void set_field_has_generic_signature() |
221 { |
223 { |
222 atomic_set_bits(JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE); |
224 atomic_set_bits(JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE); |
223 } |
225 } |
224 |
226 |
|
227 void set_on_stack(const bool value) |
|
228 { |
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229 if (value) { |
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230 atomic_set_bits(JVM_ACC_ON_STACK); |
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231 } else { |
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232 atomic_clear_bits(JVM_ACC_ON_STACK); |
|
233 } |
|
234 } |
225 // Conversion |
235 // Conversion |
226 jshort as_short() const { return (jshort)_flags; } |
236 jshort as_short() const { return (jshort)_flags; } |
227 jint as_int() const { return _flags; } |
237 jint as_int() const { return _flags; } |
228 |
238 |
229 inline friend AccessFlags accessFlags_from(jint flags); |
239 inline friend AccessFlags accessFlags_from(jint flags); |