author | jrose |
Fri, 20 Mar 2009 23:19:36 -0700 | |
changeset 2332 | 5c7b6f4ce0a1 |
parent 2105 | 347008ce7984 |
child 2534 | 08dac9ce0cd7 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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* |
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*/ |
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// Interface for manipulating the basic Java classes. |
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// |
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// All dependencies on layout of actual Java classes should be kept here. |
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// If the layout of any of the classes above changes the offsets must be adjusted. |
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// |
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// For most classes we hardwire the offsets for performance reasons. In certain |
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// cases (e.g. java.security.AccessControlContext) we compute the offsets at |
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// startup since the layout here differs between JDK1.2 and JDK1.3. |
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// |
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// Note that fields (static and non-static) are arranged with oops before non-oops |
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// on a per class basis. The offsets below have to reflect this ordering. |
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// |
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// When editing the layouts please update the check_offset verification code |
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// correspondingly. The names in the enums must be identical to the actual field |
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// names in order for the verification code to work. |
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// Interface to java.lang.String objects |
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class java_lang_String : AllStatic { |
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private: |
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enum { |
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hc_value_offset = 0, |
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hc_offset_offset = 1 |
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//hc_count_offset = 2 -- not a word-scaled offset |
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//hc_hash_offset = 3 -- not a word-scaled offset |
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}; |
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static int value_offset; |
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static int offset_offset; |
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static int count_offset; |
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static int hash_offset; |
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static Handle basic_create(int length, bool tenured, TRAPS); |
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static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS); |
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static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset, (oop)buffer); } |
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static void set_offset(oop string, int offset) { string->int_field_put(offset_offset, offset); } |
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static void set_count( oop string, int count) { string->int_field_put(count_offset, count); } |
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public: |
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// Instance creation |
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static Handle create_from_unicode(jchar* unicode, int len, TRAPS); |
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static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS); |
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static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); |
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static Handle create_from_str(const char* utf8_str, TRAPS); |
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static oop create_oop_from_str(const char* utf8_str, TRAPS); |
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static Handle create_from_symbol(symbolHandle symbol, TRAPS); |
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static Handle create_from_platform_dependent_str(const char* str, TRAPS); |
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static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); |
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static int value_offset_in_bytes() { return value_offset; } |
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static int count_offset_in_bytes() { return count_offset; } |
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static int offset_offset_in_bytes() { return offset_offset; } |
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static int hash_offset_in_bytes() { return hash_offset; } |
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// Accessors |
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static typeArrayOop value(oop java_string) { |
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assert(is_instance(java_string), "must be java_string"); |
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return (typeArrayOop) java_string->obj_field(value_offset); |
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} |
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static int offset(oop java_string) { |
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assert(is_instance(java_string), "must be java_string"); |
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return java_string->int_field(offset_offset); |
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} |
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static int length(oop java_string) { |
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assert(is_instance(java_string), "must be java_string"); |
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return java_string->int_field(count_offset); |
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} |
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static int utf8_length(oop java_string); |
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// String converters |
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static char* as_utf8_string(oop java_string); |
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static char* as_utf8_string(oop java_string, int start, int len); |
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static char* as_platform_dependent_str(Handle java_string, TRAPS); |
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static jchar* as_unicode_string(oop java_string, int& length); |
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static bool equals(oop java_string, jchar* chars, int len); |
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// Conversion between '.' and '/' formats |
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static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } |
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static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } |
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// Conversion |
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static symbolHandle as_symbol(Handle java_string, TRAPS); |
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static symbolOop as_symbol_or_null(oop java_string); |
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// Testers |
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static bool is_instance(oop obj) { |
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return obj != NULL && obj->klass() == SystemDictionary::string_klass(); |
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} |
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// Debugging |
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static void print(Handle java_string, outputStream* st); |
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friend class JavaClasses; |
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}; |
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// Interface to java.lang.Class objects |
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class java_lang_Class : AllStatic { |
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friend class VMStructs; |
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private: |
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// The fake offsets are added by the class loader when java.lang.Class is loaded |
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enum { |
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hc_klass_offset = 0, |
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hc_array_klass_offset = 1, |
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hc_resolved_constructor_offset = 2, |
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hc_number_of_fake_oop_fields = 3 |
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}; |
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static int klass_offset; |
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static int resolved_constructor_offset; |
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static int array_klass_offset; |
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static int number_of_fake_oop_fields; |
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static void compute_offsets(); |
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static bool offsets_computed; |
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static int classRedefinedCount_offset; |
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static int parallelCapable_offset; |
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public: |
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// Instance creation |
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static oop create_mirror(KlassHandle k, TRAPS); |
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static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
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// Conversion |
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static klassOop as_klassOop(oop java_class); |
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static BasicType as_BasicType(oop java_class, klassOop* reference_klass = NULL); |
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static symbolOop as_signature(oop java_class, bool intern_if_not_found, TRAPS); |
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static void print_signature(oop java_class, outputStream *st); |
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// Testing |
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static bool is_instance(oop obj) { |
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return obj != NULL && obj->klass() == SystemDictionary::class_klass(); |
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} |
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static bool is_primitive(oop java_class); |
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static BasicType primitive_type(oop java_class); |
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static oop primitive_mirror(BasicType t); |
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// JVM_NewInstance support |
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static methodOop resolved_constructor(oop java_class); |
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static void set_resolved_constructor(oop java_class, methodOop constructor); |
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// JVM_NewArray support |
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static klassOop array_klass(oop java_class); |
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static void set_array_klass(oop java_class, klassOop klass); |
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// compiler support for class operations |
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static int klass_offset_in_bytes() { return klass_offset; } |
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static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; } |
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static int array_klass_offset_in_bytes() { return array_klass_offset; } |
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// Support for classRedefinedCount field |
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static int classRedefinedCount(oop the_class_mirror); |
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static void set_classRedefinedCount(oop the_class_mirror, int value); |
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// Support for parallelCapable field |
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static bool parallelCapable(oop the_class_mirror); |
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// Debugging |
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friend class JavaClasses; |
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friend class instanceKlass; // verification code accesses offsets |
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friend class ClassFileParser; // access to number_of_fake_fields |
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}; |
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// Interface to java.lang.Thread objects |
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class java_lang_Thread : AllStatic { |
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private: |
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// Note that for this class the layout changed between JDK1.2 and JDK1.3, |
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// so we compute the offsets at startup rather than hard-wiring them. |
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static int _name_offset; |
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static int _group_offset; |
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static int _contextClassLoader_offset; |
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static int _inheritedAccessControlContext_offset; |
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static int _priority_offset; |
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static int _eetop_offset; |
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static int _daemon_offset; |
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static int _stillborn_offset; |
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static int _stackSize_offset; |
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static int _tid_offset; |
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static int _thread_status_offset; |
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static int _park_blocker_offset; |
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static int _park_event_offset ; |
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static void compute_offsets(); |
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public: |
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// Instance creation |
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static oop create(); |
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// Returns the JavaThread associated with the thread obj |
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static JavaThread* thread(oop java_thread); |
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// Set JavaThread for instance |
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static void set_thread(oop java_thread, JavaThread* thread); |
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// Name |
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static typeArrayOop name(oop java_thread); |
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static void set_name(oop java_thread, typeArrayOop name); |
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// Priority |
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static ThreadPriority priority(oop java_thread); |
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static void set_priority(oop java_thread, ThreadPriority priority); |
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// Thread group |
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static oop threadGroup(oop java_thread); |
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// Stillborn |
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static bool is_stillborn(oop java_thread); |
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static void set_stillborn(oop java_thread); |
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// Alive (NOTE: this is not really a field, but provides the correct |
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// definition without doing a Java call) |
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static bool is_alive(oop java_thread); |
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// Daemon |
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static bool is_daemon(oop java_thread); |
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static void set_daemon(oop java_thread); |
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// Context ClassLoader |
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static oop context_class_loader(oop java_thread); |
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// Control context |
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static oop inherited_access_control_context(oop java_thread); |
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// Stack size hint |
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static jlong stackSize(oop java_thread); |
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// Thread ID |
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static jlong thread_id(oop java_thread); |
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// Blocker object responsible for thread parking |
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static oop park_blocker(oop java_thread); |
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// Pointer to type-stable park handler, encoded as jlong. |
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// Should be set when apparently null |
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// For details, see unsafe.cpp Unsafe_Unpark |
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static jlong park_event(oop java_thread); |
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static bool set_park_event(oop java_thread, jlong ptr); |
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// Java Thread Status for JVMTI and M&M use. |
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// This thread status info is saved in threadStatus field of |
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// java.lang.Thread java class. |
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enum ThreadStatus { |
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NEW = 0, |
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RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running |
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JVMTI_THREAD_STATE_RUNNABLE, |
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SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() |
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JVMTI_THREAD_STATE_WAITING + |
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JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + |
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JVMTI_THREAD_STATE_SLEEPING, |
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IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() |
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JVMTI_THREAD_STATE_WAITING + |
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JVMTI_THREAD_STATE_WAITING_INDEFINITELY + |
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JVMTI_THREAD_STATE_IN_OBJECT_WAIT, |
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IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) |
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JVMTI_THREAD_STATE_WAITING + |
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JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + |
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JVMTI_THREAD_STATE_IN_OBJECT_WAIT, |
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PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() |
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JVMTI_THREAD_STATE_WAITING + |
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JVMTI_THREAD_STATE_WAITING_INDEFINITELY + |
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JVMTI_THREAD_STATE_PARKED, |
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PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) |
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JVMTI_THREAD_STATE_WAITING + |
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JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + |
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JVMTI_THREAD_STATE_PARKED, |
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BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block |
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JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, |
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TERMINATED = JVMTI_THREAD_STATE_TERMINATED |
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}; |
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// Write thread status info to threadStatus field of java.lang.Thread. |
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static void set_thread_status(oop java_thread_oop, ThreadStatus status); |
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// Read thread status info from threadStatus field of java.lang.Thread. |
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static ThreadStatus get_thread_status(oop java_thread_oop); |
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284 |
static const char* thread_status_name(oop java_thread_oop); |
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285 |
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// Debugging |
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friend class JavaClasses; |
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}; |
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289 |
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290 |
// Interface to java.lang.ThreadGroup objects |
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291 |
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292 |
class java_lang_ThreadGroup : AllStatic { |
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private: |
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static int _parent_offset; |
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static int _name_offset; |
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296 |
static int _threads_offset; |
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297 |
static int _groups_offset; |
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static int _maxPriority_offset; |
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299 |
static int _destroyed_offset; |
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300 |
static int _daemon_offset; |
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static int _vmAllowSuspension_offset; |
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static int _nthreads_offset; |
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static int _ngroups_offset; |
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304 |
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305 |
static void compute_offsets(); |
|
306 |
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public: |
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// parent ThreadGroup |
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static oop parent(oop java_thread_group); |
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// name |
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static typeArrayOop name(oop java_thread_group); |
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// ("name as oop" accessor is not necessary) |
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// Number of threads in group |
|
314 |
static int nthreads(oop java_thread_group); |
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// threads |
|
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static objArrayOop threads(oop java_thread_group); |
|
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// Number of threads in group |
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318 |
static int ngroups(oop java_thread_group); |
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// groups |
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static objArrayOop groups(oop java_thread_group); |
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// maxPriority in group |
|
322 |
static ThreadPriority maxPriority(oop java_thread_group); |
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// Destroyed |
|
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static bool is_destroyed(oop java_thread_group); |
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325 |
// Daemon |
|
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static bool is_daemon(oop java_thread_group); |
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// vmAllowSuspension |
|
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static bool is_vmAllowSuspension(oop java_thread_group); |
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329 |
// Debugging |
|
330 |
friend class JavaClasses; |
|
331 |
}; |
|
332 |
||
333 |
||
334 |
||
335 |
// Interface to java.lang.Throwable objects |
|
336 |
||
337 |
class java_lang_Throwable: AllStatic { |
|
338 |
friend class BacktraceBuilder; |
|
339 |
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340 |
private: |
|
341 |
// Offsets |
|
342 |
enum { |
|
343 |
hc_backtrace_offset = 0, |
|
344 |
hc_detailMessage_offset = 1, |
|
345 |
hc_cause_offset = 2, // New since 1.4 |
|
346 |
hc_stackTrace_offset = 3 // New since 1.4 |
|
347 |
}; |
|
348 |
// Trace constants |
|
349 |
enum { |
|
350 |
trace_methods_offset = 0, |
|
351 |
trace_bcis_offset = 1, |
|
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trace_next_offset = 2, |
|
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trace_size = 3, |
|
354 |
trace_chunk_size = 32 |
|
355 |
}; |
|
356 |
||
357 |
static int backtrace_offset; |
|
358 |
static int detailMessage_offset; |
|
359 |
static int cause_offset; |
|
360 |
static int stackTrace_offset; |
|
361 |
||
362 |
// Printing |
|
363 |
static char* print_stack_element_to_buffer(methodOop method, int bci); |
|
364 |
static void print_to_stream(Handle stream, const char* str); |
|
365 |
// StackTrace (programmatic access, new since 1.4) |
|
366 |
static void clear_stacktrace(oop throwable); |
|
367 |
// No stack trace available |
|
368 |
static const char* no_stack_trace_message(); |
|
369 |
||
370 |
public: |
|
371 |
// Backtrace |
|
372 |
static oop backtrace(oop throwable); |
|
373 |
static void set_backtrace(oop throwable, oop value); |
|
374 |
// Needed by JVMTI to filter out this internal field. |
|
375 |
static int get_backtrace_offset() { return backtrace_offset;} |
|
376 |
static int get_detailMessage_offset() { return detailMessage_offset;} |
|
377 |
// Message |
|
378 |
static oop message(oop throwable); |
|
379 |
static oop message(Handle throwable); |
|
380 |
static void set_message(oop throwable, oop value); |
|
381 |
// Print stack trace stored in exception by call-back to Java |
|
382 |
// Note: this is no longer used in Merlin, but we still suppport |
|
383 |
// it for compatibility. |
|
384 |
static void print_stack_trace(oop throwable, oop print_stream); |
|
385 |
static void print_stack_element(Handle stream, methodOop method, int bci); |
|
386 |
static void print_stack_element(outputStream *st, methodOop method, int bci); |
|
387 |
static void print_stack_usage(Handle stream); |
|
388 |
||
389 |
// Allocate space for backtrace (created but stack trace not filled in) |
|
390 |
static void allocate_backtrace(Handle throwable, TRAPS); |
|
391 |
// Fill in current stack trace for throwable with preallocated backtrace (no GC) |
|
392 |
static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); |
|
393 |
||
394 |
// Fill in current stack trace, can cause GC |
|
395 |
static void fill_in_stack_trace(Handle throwable, TRAPS); |
|
396 |
static void fill_in_stack_trace(Handle throwable); |
|
397 |
// Programmatic access to stack trace |
|
398 |
static oop get_stack_trace_element(oop throwable, int index, TRAPS); |
|
399 |
static int get_stack_trace_depth(oop throwable, TRAPS); |
|
400 |
// Printing |
|
401 |
static void print(oop throwable, outputStream* st); |
|
402 |
static void print(Handle throwable, outputStream* st); |
|
403 |
static void print_stack_trace(oop throwable, outputStream* st); |
|
404 |
// Debugging |
|
405 |
friend class JavaClasses; |
|
406 |
}; |
|
407 |
||
408 |
||
409 |
// Interface to java.lang.reflect.AccessibleObject objects |
|
410 |
||
411 |
class java_lang_reflect_AccessibleObject: AllStatic { |
|
412 |
private: |
|
413 |
// Note that to reduce dependencies on the JDK we compute these |
|
414 |
// offsets at run-time. |
|
415 |
static int override_offset; |
|
416 |
||
417 |
static void compute_offsets(); |
|
418 |
||
419 |
public: |
|
420 |
// Accessors |
|
421 |
static jboolean override(oop reflect); |
|
422 |
static void set_override(oop reflect, jboolean value); |
|
423 |
||
424 |
// Debugging |
|
425 |
friend class JavaClasses; |
|
426 |
}; |
|
427 |
||
428 |
||
429 |
// Interface to java.lang.reflect.Method objects |
|
430 |
||
431 |
class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { |
|
432 |
private: |
|
433 |
// Note that to reduce dependencies on the JDK we compute these |
|
434 |
// offsets at run-time. |
|
435 |
static int clazz_offset; |
|
436 |
static int name_offset; |
|
437 |
static int returnType_offset; |
|
438 |
static int parameterTypes_offset; |
|
439 |
static int exceptionTypes_offset; |
|
440 |
static int slot_offset; |
|
441 |
static int modifiers_offset; |
|
442 |
static int signature_offset; |
|
443 |
static int annotations_offset; |
|
444 |
static int parameter_annotations_offset; |
|
445 |
static int annotation_default_offset; |
|
446 |
||
447 |
static void compute_offsets(); |
|
448 |
||
449 |
public: |
|
450 |
// Allocation |
|
451 |
static Handle create(TRAPS); |
|
452 |
||
453 |
// Accessors |
|
454 |
static oop clazz(oop reflect); |
|
455 |
static void set_clazz(oop reflect, oop value); |
|
456 |
||
457 |
static oop name(oop method); |
|
458 |
static void set_name(oop method, oop value); |
|
459 |
||
460 |
static oop return_type(oop method); |
|
461 |
static void set_return_type(oop method, oop value); |
|
462 |
||
463 |
static oop parameter_types(oop method); |
|
464 |
static void set_parameter_types(oop method, oop value); |
|
465 |
||
466 |
static oop exception_types(oop method); |
|
467 |
static void set_exception_types(oop method, oop value); |
|
468 |
||
469 |
static int slot(oop reflect); |
|
470 |
static void set_slot(oop reflect, int value); |
|
471 |
||
472 |
static int modifiers(oop method); |
|
473 |
static void set_modifiers(oop method, int value); |
|
474 |
||
475 |
static bool has_signature_field(); |
|
476 |
static oop signature(oop method); |
|
477 |
static void set_signature(oop method, oop value); |
|
478 |
||
479 |
static bool has_annotations_field(); |
|
480 |
static oop annotations(oop method); |
|
481 |
static void set_annotations(oop method, oop value); |
|
482 |
||
483 |
static bool has_parameter_annotations_field(); |
|
484 |
static oop parameter_annotations(oop method); |
|
485 |
static void set_parameter_annotations(oop method, oop value); |
|
486 |
||
487 |
static bool has_annotation_default_field(); |
|
488 |
static oop annotation_default(oop method); |
|
489 |
static void set_annotation_default(oop method, oop value); |
|
490 |
||
491 |
// Debugging |
|
492 |
friend class JavaClasses; |
|
493 |
}; |
|
494 |
||
495 |
||
496 |
// Interface to java.lang.reflect.Constructor objects |
|
497 |
||
498 |
class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { |
|
499 |
private: |
|
500 |
// Note that to reduce dependencies on the JDK we compute these |
|
501 |
// offsets at run-time. |
|
502 |
static int clazz_offset; |
|
503 |
static int parameterTypes_offset; |
|
504 |
static int exceptionTypes_offset; |
|
505 |
static int slot_offset; |
|
506 |
static int modifiers_offset; |
|
507 |
static int signature_offset; |
|
508 |
static int annotations_offset; |
|
509 |
static int parameter_annotations_offset; |
|
510 |
||
511 |
static void compute_offsets(); |
|
512 |
||
513 |
public: |
|
514 |
// Allocation |
|
515 |
static Handle create(TRAPS); |
|
516 |
||
517 |
// Accessors |
|
518 |
static oop clazz(oop reflect); |
|
519 |
static void set_clazz(oop reflect, oop value); |
|
520 |
||
521 |
static oop parameter_types(oop constructor); |
|
522 |
static void set_parameter_types(oop constructor, oop value); |
|
523 |
||
524 |
static oop exception_types(oop constructor); |
|
525 |
static void set_exception_types(oop constructor, oop value); |
|
526 |
||
527 |
static int slot(oop reflect); |
|
528 |
static void set_slot(oop reflect, int value); |
|
529 |
||
530 |
static int modifiers(oop constructor); |
|
531 |
static void set_modifiers(oop constructor, int value); |
|
532 |
||
533 |
static bool has_signature_field(); |
|
534 |
static oop signature(oop constructor); |
|
535 |
static void set_signature(oop constructor, oop value); |
|
536 |
||
537 |
static bool has_annotations_field(); |
|
538 |
static oop annotations(oop constructor); |
|
539 |
static void set_annotations(oop constructor, oop value); |
|
540 |
||
541 |
static bool has_parameter_annotations_field(); |
|
542 |
static oop parameter_annotations(oop method); |
|
543 |
static void set_parameter_annotations(oop method, oop value); |
|
544 |
||
545 |
// Debugging |
|
546 |
friend class JavaClasses; |
|
547 |
}; |
|
548 |
||
549 |
||
550 |
// Interface to java.lang.reflect.Field objects |
|
551 |
||
552 |
class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { |
|
553 |
private: |
|
554 |
// Note that to reduce dependencies on the JDK we compute these |
|
555 |
// offsets at run-time. |
|
556 |
static int clazz_offset; |
|
557 |
static int name_offset; |
|
558 |
static int type_offset; |
|
559 |
static int slot_offset; |
|
560 |
static int modifiers_offset; |
|
561 |
static int signature_offset; |
|
562 |
static int annotations_offset; |
|
563 |
||
564 |
static void compute_offsets(); |
|
565 |
||
566 |
public: |
|
567 |
// Allocation |
|
568 |
static Handle create(TRAPS); |
|
569 |
||
570 |
// Accessors |
|
571 |
static oop clazz(oop reflect); |
|
572 |
static void set_clazz(oop reflect, oop value); |
|
573 |
||
574 |
static oop name(oop field); |
|
575 |
static void set_name(oop field, oop value); |
|
576 |
||
577 |
static oop type(oop field); |
|
578 |
static void set_type(oop field, oop value); |
|
579 |
||
580 |
static int slot(oop reflect); |
|
581 |
static void set_slot(oop reflect, int value); |
|
582 |
||
583 |
static int modifiers(oop field); |
|
584 |
static void set_modifiers(oop field, int value); |
|
585 |
||
586 |
static bool has_signature_field(); |
|
587 |
static oop signature(oop constructor); |
|
588 |
static void set_signature(oop constructor, oop value); |
|
589 |
||
590 |
static bool has_annotations_field(); |
|
591 |
static oop annotations(oop constructor); |
|
592 |
static void set_annotations(oop constructor, oop value); |
|
593 |
||
594 |
static bool has_parameter_annotations_field(); |
|
595 |
static oop parameter_annotations(oop method); |
|
596 |
static void set_parameter_annotations(oop method, oop value); |
|
597 |
||
598 |
static bool has_annotation_default_field(); |
|
599 |
static oop annotation_default(oop method); |
|
600 |
static void set_annotation_default(oop method, oop value); |
|
601 |
||
602 |
// Debugging |
|
603 |
friend class JavaClasses; |
|
604 |
}; |
|
605 |
||
606 |
// Interface to sun.reflect.ConstantPool objects |
|
607 |
class sun_reflect_ConstantPool { |
|
608 |
private: |
|
609 |
// Note that to reduce dependencies on the JDK we compute these |
|
610 |
// offsets at run-time. |
|
611 |
static int _cp_oop_offset; |
|
612 |
||
613 |
static void compute_offsets(); |
|
614 |
||
615 |
public: |
|
616 |
// Allocation |
|
617 |
static Handle create(TRAPS); |
|
618 |
||
619 |
// Accessors |
|
620 |
static oop cp_oop(oop reflect); |
|
621 |
static void set_cp_oop(oop reflect, oop value); |
|
622 |
static int cp_oop_offset() { |
|
623 |
return _cp_oop_offset; |
|
624 |
} |
|
625 |
||
626 |
// Debugging |
|
627 |
friend class JavaClasses; |
|
628 |
}; |
|
629 |
||
630 |
// Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects |
|
631 |
class sun_reflect_UnsafeStaticFieldAccessorImpl { |
|
632 |
private: |
|
633 |
static int _base_offset; |
|
634 |
static void compute_offsets(); |
|
635 |
||
636 |
public: |
|
637 |
static int base_offset() { |
|
638 |
return _base_offset; |
|
639 |
} |
|
640 |
||
641 |
// Debugging |
|
642 |
friend class JavaClasses; |
|
643 |
}; |
|
644 |
||
645 |
// Interface to java.lang primitive type boxing objects: |
|
646 |
// - java.lang.Boolean |
|
647 |
// - java.lang.Character |
|
648 |
// - java.lang.Float |
|
649 |
// - java.lang.Double |
|
650 |
// - java.lang.Byte |
|
651 |
// - java.lang.Short |
|
652 |
// - java.lang.Integer |
|
653 |
// - java.lang.Long |
|
654 |
||
655 |
// This could be separated out into 8 individual classes. |
|
656 |
||
657 |
class java_lang_boxing_object: AllStatic { |
|
658 |
private: |
|
659 |
enum { |
|
660 |
hc_value_offset = 0 |
|
661 |
}; |
|
662 |
static int value_offset; |
|
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
379
diff
changeset
|
663 |
static int long_value_offset; |
1 | 664 |
|
379
10767ca40189
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
360
diff
changeset
|
665 |
static oop initialize_and_allocate(BasicType type, TRAPS); |
1 | 666 |
public: |
667 |
// Allocation. Returns a boxed value, or NULL for invalid type. |
|
668 |
static oop create(BasicType type, jvalue* value, TRAPS); |
|
669 |
// Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. |
|
670 |
static BasicType get_value(oop box, jvalue* value); |
|
671 |
static BasicType set_value(oop box, jvalue* value); |
|
379
10767ca40189
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
360
diff
changeset
|
672 |
static BasicType basic_type(oop box); |
10767ca40189
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
360
diff
changeset
|
673 |
static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } |
10767ca40189
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
360
diff
changeset
|
674 |
static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } |
2332
5c7b6f4ce0a1
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
2105
diff
changeset
|
675 |
static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } |
5c7b6f4ce0a1
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
2105
diff
changeset
|
676 |
static void print(BasicType type, jvalue* value, outputStream* st); |
1 | 677 |
|
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
379
diff
changeset
|
678 |
static int value_offset_in_bytes(BasicType type) { |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
379
diff
changeset
|
679 |
return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
379
diff
changeset
|
680 |
value_offset; |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
379
diff
changeset
|
681 |
} |
1 | 682 |
|
683 |
// Debugging |
|
684 |
friend class JavaClasses; |
|
685 |
}; |
|
686 |
||
687 |
||
688 |
||
689 |
// Interface to java.lang.ref.Reference objects |
|
690 |
||
691 |
class java_lang_ref_Reference: AllStatic { |
|
692 |
public: |
|
693 |
enum { |
|
694 |
hc_referent_offset = 0, |
|
695 |
hc_queue_offset = 1, |
|
696 |
hc_next_offset = 2, |
|
697 |
hc_discovered_offset = 3 // Is not last, see SoftRefs. |
|
698 |
}; |
|
699 |
enum { |
|
700 |
hc_static_lock_offset = 0, |
|
701 |
hc_static_pending_offset = 1 |
|
702 |
}; |
|
703 |
||
704 |
static int referent_offset; |
|
705 |
static int queue_offset; |
|
706 |
static int next_offset; |
|
707 |
static int discovered_offset; |
|
708 |
static int static_lock_offset; |
|
709 |
static int static_pending_offset; |
|
710 |
static int number_of_fake_oop_fields; |
|
711 |
||
712 |
// Accessors |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
713 |
static oop referent(oop ref) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
714 |
return ref->obj_field(referent_offset); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
715 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
716 |
static void set_referent(oop ref, oop value) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
717 |
ref->obj_field_put(referent_offset, value); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
718 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
719 |
static void set_referent_raw(oop ref, oop value) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
720 |
ref->obj_field_raw_put(referent_offset, value); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
721 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
722 |
static HeapWord* referent_addr(oop ref) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
723 |
return ref->obj_field_addr<HeapWord>(referent_offset); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
724 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
725 |
static oop next(oop ref) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
726 |
return ref->obj_field(next_offset); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
727 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
728 |
static void set_next(oop ref, oop value) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
729 |
ref->obj_field_put(next_offset, value); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
730 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
731 |
static void set_next_raw(oop ref, oop value) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
732 |
ref->obj_field_raw_put(next_offset, value); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
733 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
734 |
static HeapWord* next_addr(oop ref) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
735 |
return ref->obj_field_addr<HeapWord>(next_offset); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
736 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
737 |
static oop discovered(oop ref) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
738 |
return ref->obj_field(discovered_offset); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
739 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
740 |
static void set_discovered(oop ref, oop value) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
741 |
ref->obj_field_put(discovered_offset, value); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
742 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
743 |
static void set_discovered_raw(oop ref, oop value) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
744 |
ref->obj_field_raw_put(discovered_offset, value); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
745 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
195
diff
changeset
|
746 |
static HeapWord* discovered_addr(oop ref) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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|
747 |
return ref->obj_field_addr<HeapWord>(discovered_offset); |
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|
748 |
} |
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|
749 |
// Accessors for statics |
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|
750 |
static oop pending_list_lock(); |
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|
751 |
static oop pending_list(); |
1 | 752 |
|
360
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|
753 |
static HeapWord* pending_list_addr(); |
1 | 754 |
}; |
755 |
||
756 |
||
757 |
// Interface to java.lang.ref.SoftReference objects |
|
758 |
||
759 |
class java_lang_ref_SoftReference: public java_lang_ref_Reference { |
|
760 |
public: |
|
761 |
enum { |
|
762 |
// The timestamp is a long field and may need to be adjusted for alignment. |
|
591
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|
763 |
hc_timestamp_offset = hc_discovered_offset + 1 |
1 | 764 |
}; |
765 |
enum { |
|
766 |
hc_static_clock_offset = 0 |
|
767 |
}; |
|
768 |
||
769 |
static int timestamp_offset; |
|
770 |
static int static_clock_offset; |
|
771 |
||
772 |
// Accessors |
|
773 |
static jlong timestamp(oop ref); |
|
774 |
||
775 |
// Accessors for statics |
|
776 |
static jlong clock(); |
|
777 |
static void set_clock(jlong value); |
|
778 |
}; |
|
779 |
||
780 |
||
781 |
// Interface to java.security.AccessControlContext objects |
|
782 |
||
783 |
class java_security_AccessControlContext: AllStatic { |
|
784 |
private: |
|
785 |
// Note that for this class the layout changed between JDK1.2 and JDK1.3, |
|
786 |
// so we compute the offsets at startup rather than hard-wiring them. |
|
787 |
static int _context_offset; |
|
788 |
static int _privilegedContext_offset; |
|
789 |
static int _isPrivileged_offset; |
|
790 |
||
791 |
static void compute_offsets(); |
|
792 |
public: |
|
793 |
static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); |
|
794 |
||
795 |
// Debugging/initialization |
|
796 |
friend class JavaClasses; |
|
797 |
}; |
|
798 |
||
799 |
||
800 |
// Interface to java.lang.ClassLoader objects |
|
801 |
||
802 |
class java_lang_ClassLoader : AllStatic { |
|
803 |
private: |
|
804 |
enum { |
|
805 |
hc_parent_offset = 0 |
|
806 |
}; |
|
807 |
||
808 |
static int parent_offset; |
|
809 |
||
810 |
public: |
|
811 |
static oop parent(oop loader); |
|
812 |
||
813 |
static bool is_trusted_loader(oop loader); |
|
814 |
||
815 |
// Fix for 4474172 |
|
816 |
static oop non_reflection_class_loader(oop loader); |
|
817 |
||
818 |
// Debugging |
|
819 |
friend class JavaClasses; |
|
820 |
}; |
|
821 |
||
822 |
||
823 |
// Interface to java.lang.System objects |
|
824 |
||
825 |
class java_lang_System : AllStatic { |
|
826 |
private: |
|
827 |
enum { |
|
828 |
hc_static_in_offset = 0, |
|
829 |
hc_static_out_offset = 1, |
|
830 |
hc_static_err_offset = 2 |
|
831 |
}; |
|
832 |
||
833 |
static int offset_of_static_fields; |
|
834 |
static int static_in_offset; |
|
835 |
static int static_out_offset; |
|
836 |
static int static_err_offset; |
|
837 |
||
838 |
static void compute_offsets(); |
|
839 |
||
840 |
public: |
|
841 |
static int in_offset_in_bytes(); |
|
842 |
static int out_offset_in_bytes(); |
|
843 |
static int err_offset_in_bytes(); |
|
844 |
||
845 |
// Debugging |
|
846 |
friend class JavaClasses; |
|
847 |
}; |
|
848 |
||
849 |
||
850 |
// Interface to java.lang.StackTraceElement objects |
|
851 |
||
852 |
class java_lang_StackTraceElement: AllStatic { |
|
853 |
private: |
|
854 |
enum { |
|
855 |
hc_declaringClass_offset = 0, |
|
856 |
hc_methodName_offset = 1, |
|
857 |
hc_fileName_offset = 2, |
|
858 |
hc_lineNumber_offset = 3 |
|
859 |
}; |
|
860 |
||
861 |
static int declaringClass_offset; |
|
862 |
static int methodName_offset; |
|
863 |
static int fileName_offset; |
|
864 |
static int lineNumber_offset; |
|
865 |
||
866 |
public: |
|
867 |
// Setters |
|
868 |
static void set_declaringClass(oop element, oop value); |
|
869 |
static void set_methodName(oop element, oop value); |
|
870 |
static void set_fileName(oop element, oop value); |
|
871 |
static void set_lineNumber(oop element, int value); |
|
872 |
||
873 |
// Create an instance of StackTraceElement |
|
874 |
static oop create(methodHandle m, int bci, TRAPS); |
|
875 |
||
876 |
// Debugging |
|
877 |
friend class JavaClasses; |
|
878 |
}; |
|
879 |
||
880 |
||
881 |
// Interface to java.lang.AssertionStatusDirectives objects |
|
882 |
||
883 |
class java_lang_AssertionStatusDirectives: AllStatic { |
|
884 |
private: |
|
885 |
enum { |
|
886 |
hc_classes_offset, |
|
887 |
hc_classEnabled_offset, |
|
888 |
hc_packages_offset, |
|
889 |
hc_packageEnabled_offset, |
|
890 |
hc_deflt_offset |
|
891 |
}; |
|
892 |
||
893 |
static int classes_offset; |
|
894 |
static int classEnabled_offset; |
|
895 |
static int packages_offset; |
|
896 |
static int packageEnabled_offset; |
|
897 |
static int deflt_offset; |
|
898 |
||
899 |
public: |
|
900 |
// Setters |
|
901 |
static void set_classes(oop obj, oop val); |
|
902 |
static void set_classEnabled(oop obj, oop val); |
|
903 |
static void set_packages(oop obj, oop val); |
|
904 |
static void set_packageEnabled(oop obj, oop val); |
|
905 |
static void set_deflt(oop obj, bool val); |
|
906 |
// Debugging |
|
907 |
friend class JavaClasses; |
|
908 |
}; |
|
909 |
||
910 |
||
911 |
class java_nio_Buffer: AllStatic { |
|
912 |
private: |
|
913 |
static int _limit_offset; |
|
914 |
||
915 |
public: |
|
916 |
static int limit_offset(); |
|
917 |
static void compute_offsets(); |
|
918 |
}; |
|
919 |
||
920 |
class sun_misc_AtomicLongCSImpl: AllStatic { |
|
921 |
private: |
|
922 |
static int _value_offset; |
|
923 |
||
924 |
public: |
|
925 |
static int value_offset(); |
|
926 |
static void compute_offsets(); |
|
927 |
}; |
|
928 |
||
929 |
class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { |
|
930 |
private: |
|
931 |
static int _owner_offset; |
|
932 |
public: |
|
933 |
static void initialize(TRAPS); |
|
934 |
static oop get_owner_threadObj(oop obj); |
|
935 |
}; |
|
936 |
||
937 |
// Interface to hard-coded offset checking |
|
938 |
||
939 |
class JavaClasses : AllStatic { |
|
940 |
private: |
|
941 |
static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
|
942 |
static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
|
379
10767ca40189
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
360
diff
changeset
|
943 |
static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
1 | 944 |
public: |
945 |
static void compute_hard_coded_offsets(); |
|
946 |
static void compute_offsets(); |
|
947 |
static void check_offsets() PRODUCT_RETURN; |
|
948 |
}; |