duke@435: /* pliden@6413: * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. duke@435: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@435: * duke@435: * This code is free software; you can redistribute it and/or modify it duke@435: * under the terms of the GNU General Public License version 2 only, as duke@435: * published by the Free Software Foundation. duke@435: * duke@435: * This code is distributed in the hope that it will be useful, but WITHOUT duke@435: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@435: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@435: * version 2 for more details (a copy is included in the LICENSE file that duke@435: * accompanied this code). duke@435: * duke@435: * You should have received a copy of the GNU General Public License version duke@435: * 2 along with this work; if not, write to the Free Software Foundation, duke@435: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@435: * trims@1907: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA trims@1907: * or visit www.oracle.com if you need additional information or have any trims@1907: * questions. duke@435: * duke@435: */ duke@435: stefank@2314: #ifndef SHARE_VM_CLASSFILE_JAVACLASSES_HPP stefank@2314: #define SHARE_VM_CLASSFILE_JAVACLASSES_HPP stefank@2314: stefank@2314: #include "classfile/systemDictionary.hpp" stefank@2314: #include "jvmtifiles/jvmti.h" stefank@2314: #include "oops/oop.hpp" stefank@2314: #include "runtime/os.hpp" stefank@2314: #include "utilities/utf8.hpp" stefank@2314: duke@435: // Interface for manipulating the basic Java classes. duke@435: // duke@435: // All dependencies on layout of actual Java classes should be kept here. duke@435: // If the layout of any of the classes above changes the offsets must be adjusted. duke@435: // duke@435: // For most classes we hardwire the offsets for performance reasons. In certain duke@435: // cases (e.g. java.security.AccessControlContext) we compute the offsets at duke@435: // startup since the layout here differs between JDK1.2 and JDK1.3. duke@435: // duke@435: // Note that fields (static and non-static) are arranged with oops before non-oops duke@435: // on a per class basis. The offsets below have to reflect this ordering. duke@435: // duke@435: // When editing the layouts please update the check_offset verification code duke@435: // correspondingly. The names in the enums must be identical to the actual field duke@435: // names in order for the verification code to work. duke@435: duke@435: duke@435: // Interface to java.lang.String objects duke@435: duke@435: class java_lang_String : AllStatic { duke@435: private: duke@435: static int value_offset; duke@435: static int offset_offset; duke@435: static int count_offset; duke@435: static int hash_offset; duke@435: kvn@3760: static bool initialized; kvn@3760: coleenp@4037: static Handle basic_create(int length, TRAPS); duke@435: kvn@3760: static void set_offset(oop string, int offset) { kvn@3760: assert(initialized, "Must be initialized"); kvn@3760: if (offset_offset > 0) { kvn@3760: string->int_field_put(offset_offset, offset); kvn@3760: } kvn@3760: } kvn@3760: static void set_count( oop string, int count) { kvn@3760: assert(initialized, "Must be initialized"); kvn@3760: if (count_offset > 0) { kvn@3760: string->int_field_put(count_offset, count); kvn@3760: } kvn@3760: } duke@435: duke@435: public: kvn@3760: static void compute_offsets(); kvn@3760: duke@435: // Instance creation duke@435: static Handle create_from_unicode(jchar* unicode, int len, TRAPS); duke@435: static oop create_oop_from_unicode(jchar* unicode, int len, TRAPS); duke@435: static Handle create_from_str(const char* utf8_str, TRAPS); duke@435: static oop create_oop_from_str(const char* utf8_str, TRAPS); coleenp@2497: static Handle create_from_symbol(Symbol* symbol, TRAPS); duke@435: static Handle create_from_platform_dependent_str(const char* str, TRAPS); duke@435: static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); duke@435: kvn@3760: static bool has_offset_field() { kvn@3760: assert(initialized, "Must be initialized"); kvn@3760: return (offset_offset > 0); kvn@3760: } kvn@3760: kvn@3760: static bool has_count_field() { kvn@3760: assert(initialized, "Must be initialized"); kvn@3760: return (count_offset > 0); kvn@3760: } kvn@3760: kvn@3760: static bool has_hash_field() { kvn@3760: assert(initialized, "Must be initialized"); kvn@3760: return (hash_offset > 0); kvn@3760: } kvn@3760: kvn@3760: static int value_offset_in_bytes() { kvn@3760: assert(initialized && (value_offset > 0), "Must be initialized"); kvn@3760: return value_offset; kvn@3760: } kvn@3760: static int count_offset_in_bytes() { kvn@3760: assert(initialized && (count_offset > 0), "Must be initialized"); kvn@3760: return count_offset; kvn@3760: } kvn@3760: static int offset_offset_in_bytes() { kvn@3760: assert(initialized && (offset_offset > 0), "Must be initialized"); kvn@3760: return offset_offset; kvn@3760: } kvn@3760: static int hash_offset_in_bytes() { kvn@3760: assert(initialized && (hash_offset > 0), "Must be initialized"); kvn@3760: return hash_offset; kvn@3760: } duke@435: pliden@6413: static void set_value(oop string, typeArrayOop buffer) { pliden@6413: assert(initialized && (value_offset > 0), "Must be initialized"); pliden@6413: string->obj_field_put(value_offset, (oop)buffer); pliden@6413: } pliden@6413: static void set_hash(oop string, unsigned int hash) { pliden@6413: assert(initialized && (hash_offset > 0), "Must be initialized"); pliden@6413: string->int_field_put(hash_offset, hash); pliden@6413: } pliden@6413: duke@435: // Accessors duke@435: static typeArrayOop value(oop java_string) { kvn@3760: assert(initialized && (value_offset > 0), "Must be initialized"); duke@435: assert(is_instance(java_string), "must be java_string"); duke@435: return (typeArrayOop) java_string->obj_field(value_offset); duke@435: } pliden@6413: static unsigned int hash(oop java_string) { pliden@6413: assert(initialized && (hash_offset > 0), "Must be initialized"); pliden@6413: assert(is_instance(java_string), "must be java_string"); pliden@6413: return java_string->int_field(hash_offset); pliden@6413: } duke@435: static int offset(oop java_string) { kvn@3760: assert(initialized, "Must be initialized"); duke@435: assert(is_instance(java_string), "must be java_string"); kvn@3760: if (offset_offset > 0) { kvn@3760: return java_string->int_field(offset_offset); kvn@3760: } else { kvn@3760: return 0; kvn@3760: } duke@435: } duke@435: static int length(oop java_string) { kvn@3760: assert(initialized, "Must be initialized"); duke@435: assert(is_instance(java_string), "must be java_string"); kvn@3760: if (count_offset > 0) { kvn@3760: return java_string->int_field(count_offset); kvn@3760: } else { kvn@3760: return ((typeArrayOop)java_string->obj_field(value_offset))->length(); kvn@3760: } duke@435: } duke@435: static int utf8_length(oop java_string); duke@435: duke@435: // String converters duke@435: static char* as_utf8_string(oop java_string); sla@2331: static char* as_utf8_string(oop java_string, char* buf, int buflen); duke@435: static char* as_utf8_string(oop java_string, int start, int len); coleenp@457: static char* as_platform_dependent_str(Handle java_string, TRAPS); hseigel@4987: static jchar* as_unicode_string(oop java_string, int& length, TRAPS); minqi@4267: // produce an ascii string with all other values quoted using \u#### minqi@4267: static char* as_quoted_ascii(oop java_string); duke@435: never@2700: // Compute the hash value for a java.lang.String object which would coleenp@3865: // contain the characters passed in. never@2700: // coleenp@3865: // As the hash value used by the String object itself, in coleenp@3865: // String.hashCode(). This value is normally calculated in Java code coleenp@3865: // in the String.hashCode method(), but is precomputed for String coleenp@3865: // objects in the shared archive file. coleenp@3865: // hash P(31) from Kernighan & Ritchie never@2700: // brutisso@4335: // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). brutisso@4335: template static unsigned int hash_code(T* s, int len) { never@2700: unsigned int h = 0; never@2700: while (len-- > 0) { never@2700: h = 31*h + (unsigned int) *s; never@2700: s++; never@2700: } never@2700: return h; never@2700: } brutisso@4335: static unsigned int hash_code(oop java_string); coleenp@3865: coleenp@3865: // This is the string hash code used by the StringTable, which may be brutisso@4335: // the same as String.hashCode or an alternate hash code. never@2700: static unsigned int hash_string(oop java_string); never@2700: duke@435: static bool equals(oop java_string, jchar* chars, int len); dcubed@5743: static bool equals(oop str1, oop str2); duke@435: duke@435: // Conversion between '.' and '/' formats duke@435: static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } duke@435: static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } duke@435: duke@435: // Conversion coleenp@2497: static Symbol* as_symbol(Handle java_string, TRAPS); coleenp@2497: static Symbol* as_symbol_or_null(oop java_string); duke@435: duke@435: // Testers duke@435: static bool is_instance(oop obj) { never@1577: return obj != NULL && obj->klass() == SystemDictionary::String_klass(); duke@435: } duke@435: duke@435: // Debugging stefank@6975: static void print(oop java_string, outputStream* st); duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.Class objects duke@435: never@3137: #define CLASS_INJECTED_FIELDS(macro) \ coleenp@4037: macro(java_lang_Class, klass, intptr_signature, false) \ coleenp@4037: macro(java_lang_Class, array_klass, intptr_signature, false) \ never@3137: macro(java_lang_Class, oop_size, int_signature, false) \ coleenp@5176: macro(java_lang_Class, static_oop_field_count, int_signature, false) \ coleenp@5176: macro(java_lang_Class, protection_domain, object_signature, false) \ coleenp@5176: macro(java_lang_Class, init_lock, object_signature, false) \ coleenp@5176: macro(java_lang_Class, signers, object_signature, false) never@3137: duke@435: class java_lang_Class : AllStatic { never@3137: friend class VMStructs; never@3137: duke@435: private: duke@435: // The fake offsets are added by the class loader when java.lang.Class is loaded duke@435: never@3137: static int _klass_offset; never@3137: static int _array_klass_offset; duke@435: never@3137: static int _oop_size_offset; never@3137: static int _static_oop_field_count_offset; duke@435: coleenp@5176: static int _protection_domain_offset; coleenp@5176: static int _init_lock_offset; coleenp@5176: static int _signers_offset; coleenp@5176: duke@435: static bool offsets_computed; duke@435: static int classRedefinedCount_offset; coleenp@4037: static GrowableArray* _fixup_mirror_list; duke@435: coleenp@5176: static void set_init_lock(oop java_class, oop init_lock); hseigel@5372: static void set_protection_domain(oop java_class, oop protection_domain); coleenp@6626: static void initialize_mirror_fields(KlassHandle k, Handle mirror, Handle protection_domain, TRAPS); duke@435: public: never@3137: static void compute_offsets(); never@3137: duke@435: // Instance creation coleenp@6626: static void create_mirror(KlassHandle k, Handle protection_domain, TRAPS); never@2658: static void fixup_mirror(KlassHandle k, TRAPS); duke@435: static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); duke@435: // Conversion coleenp@4037: static Klass* as_Klass(oop java_class); coleenp@4037: static void set_klass(oop java_class, Klass* klass); coleenp@4037: static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL); jrose@1145: static BasicType as_BasicType(oop java_class, KlassHandle* reference_klass) { coleenp@4037: Klass* refk_oop = NULL; jrose@1145: BasicType result = as_BasicType(java_class, &refk_oop); jrose@1145: (*reference_klass) = KlassHandle(refk_oop); jrose@1145: return result; jrose@1145: } coleenp@2497: static Symbol* as_signature(oop java_class, bool intern_if_not_found, TRAPS); jrose@1100: static void print_signature(oop java_class, outputStream *st); duke@435: // Testing jrose@567: static bool is_instance(oop obj) { never@1577: return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); jrose@567: } duke@435: static bool is_primitive(oop java_class); duke@435: static BasicType primitive_type(oop java_class); duke@435: static oop primitive_mirror(BasicType t); duke@435: // JVM_NewArray support coleenp@4037: static Klass* array_klass(oop java_class); coleenp@4037: static void set_array_klass(oop java_class, Klass* klass); duke@435: // compiler support for class operations never@3137: static int klass_offset_in_bytes() { return _klass_offset; } never@3137: static int array_klass_offset_in_bytes() { return _array_klass_offset; } duke@435: // Support for classRedefinedCount field duke@435: static int classRedefinedCount(oop the_class_mirror); duke@435: static void set_classRedefinedCount(oop the_class_mirror, int value); never@2658: coleenp@5176: // Support for embedded per-class oops coleenp@5176: static oop protection_domain(oop java_class); coleenp@5176: static oop init_lock(oop java_class); coleenp@5176: static objArrayOop signers(oop java_class); coleenp@5176: static void set_signers(oop java_class, objArrayOop signers); coleenp@5176: never@2658: static int oop_size(oop java_class); never@2658: static void set_oop_size(oop java_class, int size); never@2658: static int static_oop_field_count(oop java_class); never@2658: static void set_static_oop_field_count(oop java_class, int size); never@2658: coleenp@4037: static GrowableArray* fixup_mirror_list() { coleenp@4037: return _fixup_mirror_list; coleenp@4037: } coleenp@4037: static void set_fixup_mirror_list(GrowableArray* v) { coleenp@4037: _fixup_mirror_list = v; coleenp@4037: } duke@435: // Debugging duke@435: friend class JavaClasses; coleenp@4037: friend class InstanceKlass; // verification code accesses offsets duke@435: friend class ClassFileParser; // access to number_of_fake_fields duke@435: }; duke@435: duke@435: // Interface to java.lang.Thread objects duke@435: duke@435: class java_lang_Thread : AllStatic { duke@435: private: duke@435: // Note that for this class the layout changed between JDK1.2 and JDK1.3, duke@435: // so we compute the offsets at startup rather than hard-wiring them. duke@435: static int _name_offset; duke@435: static int _group_offset; duke@435: static int _contextClassLoader_offset; duke@435: static int _inheritedAccessControlContext_offset; duke@435: static int _priority_offset; duke@435: static int _eetop_offset; duke@435: static int _daemon_offset; duke@435: static int _stillborn_offset; duke@435: static int _stackSize_offset; duke@435: static int _tid_offset; duke@435: static int _thread_status_offset; duke@435: static int _park_blocker_offset; duke@435: static int _park_event_offset ; duke@435: duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: // Instance creation duke@435: static oop create(); duke@435: // Returns the JavaThread associated with the thread obj duke@435: static JavaThread* thread(oop java_thread); duke@435: // Set JavaThread for instance duke@435: static void set_thread(oop java_thread, JavaThread* thread); duke@435: // Name duke@435: static typeArrayOop name(oop java_thread); duke@435: static void set_name(oop java_thread, typeArrayOop name); duke@435: // Priority duke@435: static ThreadPriority priority(oop java_thread); duke@435: static void set_priority(oop java_thread, ThreadPriority priority); duke@435: // Thread group duke@435: static oop threadGroup(oop java_thread); duke@435: // Stillborn duke@435: static bool is_stillborn(oop java_thread); duke@435: static void set_stillborn(oop java_thread); duke@435: // Alive (NOTE: this is not really a field, but provides the correct duke@435: // definition without doing a Java call) duke@435: static bool is_alive(oop java_thread); duke@435: // Daemon duke@435: static bool is_daemon(oop java_thread); duke@435: static void set_daemon(oop java_thread); duke@435: // Context ClassLoader duke@435: static oop context_class_loader(oop java_thread); duke@435: // Control context duke@435: static oop inherited_access_control_context(oop java_thread); duke@435: // Stack size hint duke@435: static jlong stackSize(oop java_thread); duke@435: // Thread ID duke@435: static jlong thread_id(oop java_thread); duke@435: duke@435: // Blocker object responsible for thread parking duke@435: static oop park_blocker(oop java_thread); duke@435: duke@435: // Pointer to type-stable park handler, encoded as jlong. duke@435: // Should be set when apparently null duke@435: // For details, see unsafe.cpp Unsafe_Unpark duke@435: static jlong park_event(oop java_thread); duke@435: static bool set_park_event(oop java_thread, jlong ptr); duke@435: duke@435: // Java Thread Status for JVMTI and M&M use. duke@435: // This thread status info is saved in threadStatus field of duke@435: // java.lang.Thread java class. duke@435: enum ThreadStatus { duke@435: NEW = 0, duke@435: RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running duke@435: JVMTI_THREAD_STATE_RUNNABLE, duke@435: SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() duke@435: JVMTI_THREAD_STATE_WAITING + duke@435: JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + duke@435: JVMTI_THREAD_STATE_SLEEPING, duke@435: IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() duke@435: JVMTI_THREAD_STATE_WAITING + duke@435: JVMTI_THREAD_STATE_WAITING_INDEFINITELY + duke@435: JVMTI_THREAD_STATE_IN_OBJECT_WAIT, duke@435: IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) duke@435: JVMTI_THREAD_STATE_WAITING + duke@435: JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + duke@435: JVMTI_THREAD_STATE_IN_OBJECT_WAIT, duke@435: PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() duke@435: JVMTI_THREAD_STATE_WAITING + duke@435: JVMTI_THREAD_STATE_WAITING_INDEFINITELY + duke@435: JVMTI_THREAD_STATE_PARKED, duke@435: PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) duke@435: JVMTI_THREAD_STATE_WAITING + duke@435: JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + duke@435: JVMTI_THREAD_STATE_PARKED, duke@435: BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block duke@435: JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, duke@435: TERMINATED = JVMTI_THREAD_STATE_TERMINATED duke@435: }; duke@435: // Write thread status info to threadStatus field of java.lang.Thread. duke@435: static void set_thread_status(oop java_thread_oop, ThreadStatus status); duke@435: // Read thread status info from threadStatus field of java.lang.Thread. duke@435: static ThreadStatus get_thread_status(oop java_thread_oop); duke@435: duke@435: static const char* thread_status_name(oop java_thread_oop); duke@435: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: // Interface to java.lang.ThreadGroup objects duke@435: duke@435: class java_lang_ThreadGroup : AllStatic { duke@435: private: duke@435: static int _parent_offset; duke@435: static int _name_offset; duke@435: static int _threads_offset; duke@435: static int _groups_offset; duke@435: static int _maxPriority_offset; duke@435: static int _destroyed_offset; duke@435: static int _daemon_offset; duke@435: static int _vmAllowSuspension_offset; duke@435: static int _nthreads_offset; duke@435: static int _ngroups_offset; duke@435: duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: // parent ThreadGroup duke@435: static oop parent(oop java_thread_group); duke@435: // name duke@435: static typeArrayOop name(oop java_thread_group); duke@435: // ("name as oop" accessor is not necessary) duke@435: // Number of threads in group duke@435: static int nthreads(oop java_thread_group); duke@435: // threads duke@435: static objArrayOop threads(oop java_thread_group); duke@435: // Number of threads in group duke@435: static int ngroups(oop java_thread_group); duke@435: // groups duke@435: static objArrayOop groups(oop java_thread_group); duke@435: // maxPriority in group duke@435: static ThreadPriority maxPriority(oop java_thread_group); duke@435: // Destroyed duke@435: static bool is_destroyed(oop java_thread_group); duke@435: // Daemon duke@435: static bool is_daemon(oop java_thread_group); duke@435: // vmAllowSuspension duke@435: static bool is_vmAllowSuspension(oop java_thread_group); duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: duke@435: // Interface to java.lang.Throwable objects duke@435: duke@435: class java_lang_Throwable: AllStatic { duke@435: friend class BacktraceBuilder; duke@435: duke@435: private: duke@435: // Offsets duke@435: enum { duke@435: hc_backtrace_offset = 0, duke@435: hc_detailMessage_offset = 1, duke@435: hc_cause_offset = 2, // New since 1.4 duke@435: hc_stackTrace_offset = 3 // New since 1.4 duke@435: }; dholmes@3018: enum { dholmes@3018: hc_static_unassigned_stacktrace_offset = 0 // New since 1.7 dholmes@3018: }; duke@435: // Trace constants duke@435: enum { duke@435: trace_methods_offset = 0, duke@435: trace_bcis_offset = 1, coleenp@4037: trace_mirrors_offset = 2, coleenp@4037: trace_next_offset = 3, coleenp@4037: trace_size = 4, duke@435: trace_chunk_size = 32 duke@435: }; duke@435: duke@435: static int backtrace_offset; duke@435: static int detailMessage_offset; duke@435: static int cause_offset; duke@435: static int stackTrace_offset; dholmes@3018: static int static_unassigned_stacktrace_offset; duke@435: duke@435: // Printing coleenp@4466: static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci); duke@435: // StackTrace (programmatic access, new since 1.4) duke@435: static void clear_stacktrace(oop throwable); duke@435: // No stack trace available duke@435: static const char* no_stack_trace_message(); dholmes@3018: // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) dholmes@3018: static void set_stacktrace(oop throwable, oop st_element_array); dholmes@3018: static oop unassigned_stacktrace(); duke@435: duke@435: public: duke@435: // Backtrace duke@435: static oop backtrace(oop throwable); duke@435: static void set_backtrace(oop throwable, oop value); duke@435: // Needed by JVMTI to filter out this internal field. duke@435: static int get_backtrace_offset() { return backtrace_offset;} duke@435: static int get_detailMessage_offset() { return detailMessage_offset;} duke@435: // Message duke@435: static oop message(oop throwable); duke@435: static oop message(Handle throwable); duke@435: static void set_message(oop throwable, oop value); coleenp@4466: static void print_stack_element(outputStream *st, Handle mirror, int method, coleenp@4466: int version, int bci); coleenp@4466: static void print_stack_element(outputStream *st, methodHandle method, int bci); duke@435: static void print_stack_usage(Handle stream); duke@435: duke@435: // Allocate space for backtrace (created but stack trace not filled in) duke@435: static void allocate_backtrace(Handle throwable, TRAPS); duke@435: // Fill in current stack trace for throwable with preallocated backtrace (no GC) duke@435: static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); duke@435: // Fill in current stack trace, can cause GC coleenp@2804: static void fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS); coleenp@2804: static void fill_in_stack_trace(Handle throwable, methodHandle method = methodHandle()); duke@435: // Programmatic access to stack trace duke@435: static oop get_stack_trace_element(oop throwable, int index, TRAPS); duke@435: static int get_stack_trace_depth(oop throwable, TRAPS); duke@435: // Printing duke@435: static void print(oop throwable, outputStream* st); duke@435: static void print(Handle throwable, outputStream* st); duke@435: static void print_stack_trace(oop throwable, outputStream* st); duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.reflect.AccessibleObject objects duke@435: duke@435: class java_lang_reflect_AccessibleObject: AllStatic { duke@435: private: duke@435: // Note that to reduce dependencies on the JDK we compute these duke@435: // offsets at run-time. duke@435: static int override_offset; duke@435: duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: // Accessors duke@435: static jboolean override(oop reflect); duke@435: static void set_override(oop reflect, jboolean value); duke@435: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.reflect.Method objects duke@435: duke@435: class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { duke@435: private: duke@435: // Note that to reduce dependencies on the JDK we compute these duke@435: // offsets at run-time. duke@435: static int clazz_offset; duke@435: static int name_offset; duke@435: static int returnType_offset; duke@435: static int parameterTypes_offset; duke@435: static int exceptionTypes_offset; duke@435: static int slot_offset; duke@435: static int modifiers_offset; duke@435: static int signature_offset; duke@435: static int annotations_offset; duke@435: static int parameter_annotations_offset; duke@435: static int annotation_default_offset; stefank@4393: static int type_annotations_offset; duke@435: duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: // Allocation duke@435: static Handle create(TRAPS); duke@435: duke@435: // Accessors duke@435: static oop clazz(oop reflect); duke@435: static void set_clazz(oop reflect, oop value); duke@435: duke@435: static oop name(oop method); duke@435: static void set_name(oop method, oop value); duke@435: duke@435: static oop return_type(oop method); duke@435: static void set_return_type(oop method, oop value); duke@435: duke@435: static oop parameter_types(oop method); duke@435: static void set_parameter_types(oop method, oop value); duke@435: duke@435: static oop exception_types(oop method); duke@435: static void set_exception_types(oop method, oop value); duke@435: duke@435: static int slot(oop reflect); duke@435: static void set_slot(oop reflect, int value); duke@435: duke@435: static int modifiers(oop method); duke@435: static void set_modifiers(oop method, int value); duke@435: duke@435: static bool has_signature_field(); duke@435: static oop signature(oop method); duke@435: static void set_signature(oop method, oop value); duke@435: duke@435: static bool has_annotations_field(); duke@435: static oop annotations(oop method); duke@435: static void set_annotations(oop method, oop value); duke@435: duke@435: static bool has_parameter_annotations_field(); duke@435: static oop parameter_annotations(oop method); duke@435: static void set_parameter_annotations(oop method, oop value); duke@435: duke@435: static bool has_annotation_default_field(); duke@435: static oop annotation_default(oop method); duke@435: static void set_annotation_default(oop method, oop value); duke@435: stefank@4393: static bool has_type_annotations_field(); stefank@4393: static oop type_annotations(oop method); stefank@4393: static void set_type_annotations(oop method, oop value); stefank@4393: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.reflect.Constructor objects duke@435: duke@435: class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { duke@435: private: duke@435: // Note that to reduce dependencies on the JDK we compute these duke@435: // offsets at run-time. duke@435: static int clazz_offset; duke@435: static int parameterTypes_offset; duke@435: static int exceptionTypes_offset; duke@435: static int slot_offset; duke@435: static int modifiers_offset; duke@435: static int signature_offset; duke@435: static int annotations_offset; duke@435: static int parameter_annotations_offset; stefank@4393: static int type_annotations_offset; duke@435: duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: // Allocation duke@435: static Handle create(TRAPS); duke@435: duke@435: // Accessors duke@435: static oop clazz(oop reflect); duke@435: static void set_clazz(oop reflect, oop value); duke@435: duke@435: static oop parameter_types(oop constructor); duke@435: static void set_parameter_types(oop constructor, oop value); duke@435: duke@435: static oop exception_types(oop constructor); duke@435: static void set_exception_types(oop constructor, oop value); duke@435: duke@435: static int slot(oop reflect); duke@435: static void set_slot(oop reflect, int value); duke@435: duke@435: static int modifiers(oop constructor); duke@435: static void set_modifiers(oop constructor, int value); duke@435: duke@435: static bool has_signature_field(); duke@435: static oop signature(oop constructor); duke@435: static void set_signature(oop constructor, oop value); duke@435: duke@435: static bool has_annotations_field(); duke@435: static oop annotations(oop constructor); duke@435: static void set_annotations(oop constructor, oop value); duke@435: duke@435: static bool has_parameter_annotations_field(); duke@435: static oop parameter_annotations(oop method); duke@435: static void set_parameter_annotations(oop method, oop value); duke@435: stefank@4393: static bool has_type_annotations_field(); stefank@4393: static oop type_annotations(oop constructor); stefank@4393: static void set_type_annotations(oop constructor, oop value); stefank@4393: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.reflect.Field objects duke@435: duke@435: class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { duke@435: private: duke@435: // Note that to reduce dependencies on the JDK we compute these duke@435: // offsets at run-time. duke@435: static int clazz_offset; duke@435: static int name_offset; duke@435: static int type_offset; duke@435: static int slot_offset; duke@435: static int modifiers_offset; duke@435: static int signature_offset; duke@435: static int annotations_offset; stefank@4393: static int type_annotations_offset; duke@435: duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: // Allocation duke@435: static Handle create(TRAPS); duke@435: duke@435: // Accessors duke@435: static oop clazz(oop reflect); duke@435: static void set_clazz(oop reflect, oop value); duke@435: duke@435: static oop name(oop field); duke@435: static void set_name(oop field, oop value); duke@435: duke@435: static oop type(oop field); duke@435: static void set_type(oop field, oop value); duke@435: duke@435: static int slot(oop reflect); duke@435: static void set_slot(oop reflect, int value); duke@435: duke@435: static int modifiers(oop field); duke@435: static void set_modifiers(oop field, int value); duke@435: duke@435: static bool has_signature_field(); duke@435: static oop signature(oop constructor); duke@435: static void set_signature(oop constructor, oop value); duke@435: duke@435: static bool has_annotations_field(); duke@435: static oop annotations(oop constructor); duke@435: static void set_annotations(oop constructor, oop value); duke@435: duke@435: static bool has_parameter_annotations_field(); duke@435: static oop parameter_annotations(oop method); duke@435: static void set_parameter_annotations(oop method, oop value); duke@435: duke@435: static bool has_annotation_default_field(); duke@435: static oop annotation_default(oop method); duke@435: static void set_annotation_default(oop method, oop value); duke@435: stefank@4393: static bool has_type_annotations_field(); stefank@4393: static oop type_annotations(oop field); stefank@4393: static void set_type_annotations(oop field, oop value); stefank@4393: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: coleenp@4398: class java_lang_reflect_Parameter { coleenp@4398: private: coleenp@4398: // Note that to reduce dependencies on the JDK we compute these coleenp@4398: // offsets at run-time. coleenp@4398: static int name_offset; coleenp@4398: static int modifiers_offset; coleenp@4398: static int index_offset; coleenp@4398: static int executable_offset; coleenp@4398: coleenp@4398: static void compute_offsets(); coleenp@4398: coleenp@4398: public: coleenp@4398: // Allocation coleenp@4398: static Handle create(TRAPS); coleenp@4398: coleenp@4398: // Accessors coleenp@4398: static oop name(oop field); coleenp@4398: static void set_name(oop field, oop value); coleenp@4398: coleenp@4398: static int index(oop reflect); coleenp@4398: static void set_index(oop reflect, int value); coleenp@4398: coleenp@4398: static int modifiers(oop reflect); coleenp@4398: static void set_modifiers(oop reflect, int value); coleenp@4398: coleenp@4398: static oop executable(oop constructor); coleenp@4398: static void set_executable(oop constructor, oop value); coleenp@4398: coleenp@4398: friend class JavaClasses; coleenp@4398: }; coleenp@4398: duke@435: // Interface to sun.reflect.ConstantPool objects duke@435: class sun_reflect_ConstantPool { duke@435: private: duke@435: // Note that to reduce dependencies on the JDK we compute these duke@435: // offsets at run-time. coleenp@4037: static int _oop_offset; duke@435: duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: // Allocation duke@435: static Handle create(TRAPS); duke@435: duke@435: // Accessors coleenp@4037: static void set_cp(oop reflect, ConstantPool* value); coleenp@4037: static int oop_offset() { coleenp@4037: return _oop_offset; duke@435: } duke@435: coleenp@4037: static ConstantPool* get_cp(oop reflect); coleenp@4037: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects duke@435: class sun_reflect_UnsafeStaticFieldAccessorImpl { duke@435: private: duke@435: static int _base_offset; duke@435: static void compute_offsets(); duke@435: duke@435: public: duke@435: static int base_offset() { duke@435: return _base_offset; duke@435: } duke@435: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: // Interface to java.lang primitive type boxing objects: duke@435: // - java.lang.Boolean duke@435: // - java.lang.Character duke@435: // - java.lang.Float duke@435: // - java.lang.Double duke@435: // - java.lang.Byte duke@435: // - java.lang.Short duke@435: // - java.lang.Integer duke@435: // - java.lang.Long duke@435: duke@435: // This could be separated out into 8 individual classes. duke@435: duke@435: class java_lang_boxing_object: AllStatic { duke@435: private: duke@435: enum { duke@435: hc_value_offset = 0 duke@435: }; duke@435: static int value_offset; kvn@600: static int long_value_offset; duke@435: jrose@567: static oop initialize_and_allocate(BasicType type, TRAPS); duke@435: public: duke@435: // Allocation. Returns a boxed value, or NULL for invalid type. duke@435: static oop create(BasicType type, jvalue* value, TRAPS); duke@435: // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. duke@435: static BasicType get_value(oop box, jvalue* value); duke@435: static BasicType set_value(oop box, jvalue* value); jrose@567: static BasicType basic_type(oop box); jrose@567: static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } jrose@567: static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } jrose@1100: static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } jrose@1100: static void print(BasicType type, jvalue* value, outputStream* st); duke@435: kvn@600: static int value_offset_in_bytes(BasicType type) { kvn@600: return ( type == T_LONG || type == T_DOUBLE ) ? long_value_offset : kvn@600: value_offset; kvn@600: } duke@435: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: duke@435: // Interface to java.lang.ref.Reference objects duke@435: duke@435: class java_lang_ref_Reference: AllStatic { duke@435: public: duke@435: enum { duke@435: hc_referent_offset = 0, duke@435: hc_queue_offset = 1, duke@435: hc_next_offset = 2, duke@435: hc_discovered_offset = 3 // Is not last, see SoftRefs. duke@435: }; duke@435: enum { duke@435: hc_static_lock_offset = 0, duke@435: hc_static_pending_offset = 1 duke@435: }; duke@435: duke@435: static int referent_offset; duke@435: static int queue_offset; duke@435: static int next_offset; duke@435: static int discovered_offset; duke@435: static int static_lock_offset; duke@435: static int static_pending_offset; duke@435: static int number_of_fake_oop_fields; duke@435: duke@435: // Accessors coleenp@548: static oop referent(oop ref) { coleenp@548: return ref->obj_field(referent_offset); coleenp@548: } coleenp@548: static void set_referent(oop ref, oop value) { coleenp@548: ref->obj_field_put(referent_offset, value); coleenp@548: } coleenp@548: static void set_referent_raw(oop ref, oop value) { twisti@3131: ref->obj_field_put_raw(referent_offset, value); coleenp@548: } coleenp@548: static HeapWord* referent_addr(oop ref) { coleenp@548: return ref->obj_field_addr(referent_offset); coleenp@548: } coleenp@548: static oop next(oop ref) { coleenp@548: return ref->obj_field(next_offset); coleenp@548: } coleenp@548: static void set_next(oop ref, oop value) { coleenp@548: ref->obj_field_put(next_offset, value); coleenp@548: } coleenp@548: static void set_next_raw(oop ref, oop value) { twisti@3131: ref->obj_field_put_raw(next_offset, value); coleenp@548: } coleenp@548: static HeapWord* next_addr(oop ref) { coleenp@548: return ref->obj_field_addr(next_offset); coleenp@548: } coleenp@548: static oop discovered(oop ref) { coleenp@548: return ref->obj_field(discovered_offset); coleenp@548: } coleenp@548: static void set_discovered(oop ref, oop value) { coleenp@548: ref->obj_field_put(discovered_offset, value); coleenp@548: } coleenp@548: static void set_discovered_raw(oop ref, oop value) { twisti@3131: ref->obj_field_put_raw(discovered_offset, value); coleenp@548: } coleenp@548: static HeapWord* discovered_addr(oop ref) { coleenp@548: return ref->obj_field_addr(discovered_offset); coleenp@548: } coleenp@548: // Accessors for statics coleenp@548: static oop pending_list_lock(); coleenp@548: static oop pending_list(); duke@435: coleenp@4037: static HeapWord* pending_list_lock_addr(); coleenp@548: static HeapWord* pending_list_addr(); duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.ref.SoftReference objects duke@435: duke@435: class java_lang_ref_SoftReference: public java_lang_ref_Reference { duke@435: public: duke@435: enum { duke@435: // The timestamp is a long field and may need to be adjusted for alignment. kvn@600: hc_timestamp_offset = hc_discovered_offset + 1 duke@435: }; duke@435: enum { duke@435: hc_static_clock_offset = 0 duke@435: }; duke@435: duke@435: static int timestamp_offset; duke@435: static int static_clock_offset; duke@435: duke@435: // Accessors duke@435: static jlong timestamp(oop ref); duke@435: duke@435: // Accessors for statics duke@435: static jlong clock(); duke@435: static void set_clock(jlong value); duke@435: }; duke@435: duke@435: jrose@2639: // Interface to java.lang.invoke.MethodHandle objects jrose@1145: jrose@1145: class MethodHandleEntry; jrose@1145: jrose@2639: class java_lang_invoke_MethodHandle: AllStatic { jrose@1145: friend class JavaClasses; jrose@1145: jrose@1145: private: twisti@3969: static int _type_offset; // the MethodType of this MH twisti@3969: static int _form_offset; // the LambdaForm of this MH jrose@1145: jrose@1145: static void compute_offsets(); jrose@1145: jrose@1145: public: jrose@1145: // Accessors jrose@1145: static oop type(oop mh); jrose@1145: static void set_type(oop mh, oop mtype); jrose@1145: twisti@3969: static oop form(oop mh); twisti@3969: static void set_form(oop mh, oop lform); jrose@1145: jrose@1145: // Testers coleenp@4037: static bool is_subclass(Klass* klass) { hseigel@4278: return klass->is_subclass_of(SystemDictionary::MethodHandle_klass()); jrose@1145: } jrose@1145: static bool is_instance(oop obj) { jrose@1145: return obj != NULL && is_subclass(obj->klass()); jrose@1145: } jrose@1145: jrose@1145: // Accessors for code generation: jrose@1145: static int type_offset_in_bytes() { return _type_offset; } twisti@3969: static int form_offset_in_bytes() { return _form_offset; } jrose@1145: }; jrose@1145: sspitsyn@5496: // Interface to java.lang.invoke.DirectMethodHandle objects sspitsyn@5496: sspitsyn@5496: class java_lang_invoke_DirectMethodHandle: AllStatic { sspitsyn@5496: friend class JavaClasses; sspitsyn@5496: sspitsyn@5496: private: sspitsyn@5496: static int _member_offset; // the MemberName of this DMH sspitsyn@5496: sspitsyn@5496: static void compute_offsets(); sspitsyn@5496: sspitsyn@5496: public: sspitsyn@5496: // Accessors sspitsyn@5496: static oop member(oop mh); sspitsyn@5496: sspitsyn@5496: // Testers sspitsyn@5496: static bool is_subclass(Klass* klass) { sspitsyn@5496: return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_klass()); sspitsyn@5496: } sspitsyn@5496: static bool is_instance(oop obj) { sspitsyn@5496: return obj != NULL && is_subclass(obj->klass()); sspitsyn@5496: } sspitsyn@5496: sspitsyn@5496: // Accessors for code generation: sspitsyn@5496: static int member_offset_in_bytes() { return _member_offset; } sspitsyn@5496: }; sspitsyn@5496: twisti@3969: // Interface to java.lang.invoke.LambdaForm objects twisti@3969: // (These are a private interface for managing adapter code generation.) never@3137: twisti@3969: class java_lang_invoke_LambdaForm: AllStatic { jrose@1145: friend class JavaClasses; jrose@1145: jrose@1145: private: twisti@3969: static int _vmentry_offset; // type is MemberName twisti@3969: jrose@1145: static void compute_offsets(); jrose@1145: jrose@1145: public: jrose@1145: // Accessors twisti@3969: static oop vmentry(oop lform); twisti@3969: static void set_vmentry(oop lform, oop invoker); jrose@1145: jrose@1145: // Testers coleenp@4037: static bool is_subclass(Klass* klass) { twisti@3969: return SystemDictionary::LambdaForm_klass() != NULL && hseigel@4278: klass->is_subclass_of(SystemDictionary::LambdaForm_klass()); jrose@1145: } jrose@1145: static bool is_instance(oop obj) { jrose@1145: return obj != NULL && is_subclass(obj->klass()); jrose@1145: } jrose@1145: jrose@1145: // Accessors for code generation: twisti@3969: static int vmentry_offset_in_bytes() { return _vmentry_offset; } jrose@1145: }; jrose@1145: never@3105: jrose@2639: // Interface to java.lang.invoke.MemberName objects jrose@1145: // (These are a private interface for Java code to query the class hierarchy.) jrose@1145: twisti@3969: #define MEMBERNAME_INJECTED_FIELDS(macro) \ coleenp@4037: macro(java_lang_invoke_MemberName, vmloader, object_signature, false) \ twisti@3969: macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) \ coleenp@4037: macro(java_lang_invoke_MemberName, vmtarget, intptr_signature, false) never@3137: jrose@2639: class java_lang_invoke_MemberName: AllStatic { jrose@1145: friend class JavaClasses; jrose@1145: jrose@1145: private: jrose@2639: // From java.lang.invoke.MemberName: jrose@1145: // private Class clazz; // class in which the method is defined jrose@1145: // private String name; // may be null if not yet materialized jrose@1145: // private Object type; // may be null if not yet materialized jrose@1145: // private int flags; // modifier bits; see reflect.Modifier coleenp@4037: // private intptr vmtarget; // VM-specific target value twisti@3969: // private intptr_t vmindex; // member index within class or interface jrose@1145: static int _clazz_offset; jrose@1145: static int _name_offset; jrose@1145: static int _type_offset; jrose@1145: static int _flags_offset; jrose@1145: static int _vmtarget_offset; coleenp@4037: static int _vmloader_offset; jrose@1145: static int _vmindex_offset; jrose@1145: jrose@1145: static void compute_offsets(); jrose@1145: jrose@1145: public: jrose@1145: // Accessors jrose@1145: static oop clazz(oop mname); jrose@1145: static void set_clazz(oop mname, oop clazz); jrose@1145: jrose@1145: static oop type(oop mname); jrose@1145: static void set_type(oop mname, oop type); jrose@1145: jrose@1145: static oop name(oop mname); jrose@1145: static void set_name(oop mname, oop name); jrose@1145: jrose@1145: static int flags(oop mname); jrose@1145: static void set_flags(oop mname, int flags); jrose@1145: coleenp@4037: static Metadata* vmtarget(oop mname); coleenp@4037: static void set_vmtarget(oop mname, Metadata* target); sspitsyn@4965: #if INCLUDE_JVMTI sspitsyn@4965: static void adjust_vmtarget(oop mname, Metadata* target); sspitsyn@4965: #endif // INCLUDE_JVMTI jrose@1145: twisti@3969: static intptr_t vmindex(oop mname); twisti@3969: static void set_vmindex(oop mname, intptr_t index); jrose@1145: jrose@1145: // Testers coleenp@4037: static bool is_subclass(Klass* klass) { hseigel@4278: return klass->is_subclass_of(SystemDictionary::MemberName_klass()); jrose@1145: } jrose@1145: static bool is_instance(oop obj) { jrose@1145: return obj != NULL && is_subclass(obj->klass()); jrose@1145: } jrose@1145: jrose@1145: // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): jrose@1145: enum { twisti@4866: MN_IS_METHOD = 0x00010000, // method (not constructor) twisti@4866: MN_IS_CONSTRUCTOR = 0x00020000, // constructor twisti@4866: MN_IS_FIELD = 0x00040000, // field twisti@4866: MN_IS_TYPE = 0x00080000, // nested type twisti@4866: MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected twisti@3969: MN_REFERENCE_KIND_SHIFT = 24, // refKind twisti@4866: MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, twisti@3969: // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: twisti@4866: MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes twisti@4866: MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces jrose@1145: }; jrose@1145: jrose@1145: // Accessors for code generation: jrose@1145: static int clazz_offset_in_bytes() { return _clazz_offset; } jrose@1145: static int type_offset_in_bytes() { return _type_offset; } jrose@1145: static int name_offset_in_bytes() { return _name_offset; } jrose@1145: static int flags_offset_in_bytes() { return _flags_offset; } jrose@1145: static int vmtarget_offset_in_bytes() { return _vmtarget_offset; } jrose@1145: static int vmindex_offset_in_bytes() { return _vmindex_offset; } jrose@1145: }; jrose@1145: jrose@1145: jrose@2639: // Interface to java.lang.invoke.MethodType objects jrose@1145: jrose@2639: class java_lang_invoke_MethodType: AllStatic { jrose@1145: friend class JavaClasses; jrose@1145: jrose@1145: private: jrose@1145: static int _rtype_offset; jrose@1145: static int _ptypes_offset; jrose@1145: jrose@1145: static void compute_offsets(); jrose@1145: jrose@1145: public: jrose@1145: // Accessors jrose@1145: static oop rtype(oop mt); jrose@1145: static objArrayOop ptypes(oop mt); jrose@1145: jrose@1145: static oop ptype(oop mt, int index); twisti@1568: static int ptype_count(oop mt); jrose@1145: twisti@3969: static int ptype_slot_count(oop mt); // extra counts for long/double twisti@3969: static int rtype_slot_count(oop mt); // extra counts for long/double twisti@3969: coleenp@2497: static Symbol* as_signature(oop mt, bool intern_if_not_found, TRAPS); jrose@1145: static void print_signature(oop mt, outputStream* st); jrose@1145: jrose@1145: static bool is_instance(oop obj) { jrose@1145: return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); jrose@1145: } jrose@1145: jrose@2982: static bool equals(oop mt1, oop mt2); jrose@2982: jrose@1145: // Accessors for code generation: jrose@1145: static int rtype_offset_in_bytes() { return _rtype_offset; } jrose@1145: static int ptypes_offset_in_bytes() { return _ptypes_offset; } jrose@1145: }; jrose@1145: jrose@1145: jrose@2639: // Interface to java.lang.invoke.CallSite objects jrose@1161: jrose@2639: class java_lang_invoke_CallSite: AllStatic { jrose@1161: friend class JavaClasses; jrose@1161: jrose@1161: private: jrose@1161: static int _target_offset; jrose@1161: jrose@1161: static void compute_offsets(); jrose@1161: jrose@1161: public: jrose@1161: // Accessors twisti@3131: static oop target( oop site) { return site->obj_field( _target_offset); } twisti@3131: static void set_target( oop site, oop target) { site->obj_field_put( _target_offset, target); } jrose@1161: twisti@3131: static volatile oop target_volatile(oop site) { return site->obj_field_volatile( _target_offset); } twisti@3131: static void set_target_volatile(oop site, oop target) { site->obj_field_put_volatile(_target_offset, target); } jrose@1862: twisti@1570: // Testers coleenp@4037: static bool is_subclass(Klass* klass) { hseigel@4278: return klass->is_subclass_of(SystemDictionary::CallSite_klass()); twisti@1570: } twisti@1570: static bool is_instance(oop obj) { twisti@1570: return obj != NULL && is_subclass(obj->klass()); twisti@1570: } twisti@1570: jrose@1161: // Accessors for code generation: jrose@1161: static int target_offset_in_bytes() { return _target_offset; } jrose@1161: }; jrose@1145: jrose@1145: duke@435: // Interface to java.security.AccessControlContext objects duke@435: duke@435: class java_security_AccessControlContext: AllStatic { duke@435: private: duke@435: // Note that for this class the layout changed between JDK1.2 and JDK1.3, duke@435: // so we compute the offsets at startup rather than hard-wiring them. duke@435: static int _context_offset; duke@435: static int _privilegedContext_offset; duke@435: static int _isPrivileged_offset; mullan@5242: static int _isAuthorized_offset; duke@435: duke@435: static void compute_offsets(); duke@435: public: duke@435: static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); duke@435: mullan@5242: static bool is_authorized(Handle context); mullan@5242: duke@435: // Debugging/initialization duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.ClassLoader objects duke@435: coleenp@4037: #define CLASSLOADER_INJECTED_FIELDS(macro) \ coleenp@4304: macro(java_lang_ClassLoader, loader_data, intptr_signature, false) coleenp@4037: duke@435: class java_lang_ClassLoader : AllStatic { duke@435: private: coleenp@4037: // The fake offsets are added by the class loader when java.lang.Class is loaded duke@435: enum { duke@435: hc_parent_offset = 0 duke@435: }; coleenp@4037: static int _loader_data_offset; never@3137: static bool offsets_computed; duke@435: static int parent_offset; never@3137: static int parallelCapable_offset; never@3137: coleenp@4037: public: never@3137: static void compute_offsets(); duke@435: coleenp@4037: static ClassLoaderData** loader_data_addr(oop loader); coleenp@4037: static ClassLoaderData* loader_data(oop loader); coleenp@4037: duke@435: static oop parent(oop loader); twisti@3969: static bool isAncestor(oop loader, oop cl); duke@435: never@3137: // Support for parallelCapable field never@3137: static bool parallelCapable(oop the_class_mirror); never@3137: duke@435: static bool is_trusted_loader(oop loader); duke@435: duke@435: // Fix for 4474172 duke@435: static oop non_reflection_class_loader(oop loader); duke@435: twisti@3969: // Testers coleenp@4037: static bool is_subclass(Klass* klass) { hseigel@4278: return klass->is_subclass_of(SystemDictionary::ClassLoader_klass()); twisti@3969: } twisti@3969: static bool is_instance(oop obj) { twisti@3969: return obj != NULL && is_subclass(obj->klass()); twisti@3969: } twisti@3969: duke@435: // Debugging duke@435: friend class JavaClasses; coleenp@4037: friend class ClassFileParser; // access to number_of_fake_fields duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.System objects duke@435: duke@435: class java_lang_System : AllStatic { duke@435: private: duke@435: enum { duke@435: hc_static_in_offset = 0, duke@435: hc_static_out_offset = 1, mullan@5242: hc_static_err_offset = 2, mullan@5242: hc_static_security_offset = 3 duke@435: }; duke@435: duke@435: static int static_in_offset; duke@435: static int static_out_offset; duke@435: static int static_err_offset; mullan@5242: static int static_security_offset; duke@435: duke@435: public: duke@435: static int in_offset_in_bytes(); duke@435: static int out_offset_in_bytes(); duke@435: static int err_offset_in_bytes(); duke@435: mullan@5242: static bool has_security_manager(); mullan@5242: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.StackTraceElement objects duke@435: duke@435: class java_lang_StackTraceElement: AllStatic { duke@435: private: duke@435: enum { duke@435: hc_declaringClass_offset = 0, duke@435: hc_methodName_offset = 1, duke@435: hc_fileName_offset = 2, duke@435: hc_lineNumber_offset = 3 duke@435: }; duke@435: duke@435: static int declaringClass_offset; duke@435: static int methodName_offset; duke@435: static int fileName_offset; duke@435: static int lineNumber_offset; duke@435: duke@435: public: duke@435: // Setters duke@435: static void set_declaringClass(oop element, oop value); duke@435: static void set_methodName(oop element, oop value); duke@435: static void set_fileName(oop element, oop value); duke@435: static void set_lineNumber(oop element, int value); duke@435: duke@435: // Create an instance of StackTraceElement coleenp@4466: static oop create(Handle mirror, int method, int version, int bci, TRAPS); coleenp@4466: static oop create(methodHandle method, int bci, TRAPS); duke@435: duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: // Interface to java.lang.AssertionStatusDirectives objects duke@435: duke@435: class java_lang_AssertionStatusDirectives: AllStatic { duke@435: private: duke@435: enum { duke@435: hc_classes_offset, duke@435: hc_classEnabled_offset, duke@435: hc_packages_offset, duke@435: hc_packageEnabled_offset, duke@435: hc_deflt_offset duke@435: }; duke@435: duke@435: static int classes_offset; duke@435: static int classEnabled_offset; duke@435: static int packages_offset; duke@435: static int packageEnabled_offset; duke@435: static int deflt_offset; duke@435: duke@435: public: duke@435: // Setters duke@435: static void set_classes(oop obj, oop val); duke@435: static void set_classEnabled(oop obj, oop val); duke@435: static void set_packages(oop obj, oop val); duke@435: static void set_packageEnabled(oop obj, oop val); duke@435: static void set_deflt(oop obj, bool val); duke@435: // Debugging duke@435: friend class JavaClasses; duke@435: }; duke@435: duke@435: duke@435: class java_nio_Buffer: AllStatic { duke@435: private: duke@435: static int _limit_offset; duke@435: duke@435: public: duke@435: static int limit_offset(); duke@435: static void compute_offsets(); duke@435: }; duke@435: duke@435: class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { duke@435: private: duke@435: static int _owner_offset; duke@435: public: duke@435: static void initialize(TRAPS); duke@435: static oop get_owner_threadObj(oop obj); duke@435: }; duke@435: never@3137: // Use to declare fields that need to be injected into Java classes never@3137: // for the JVM to use. The name_index and signature_index are never@3137: // declared in vmSymbols. The may_be_java flag is used to declare never@3137: // fields that might already exist in Java but should be injected if never@3137: // they don't. Otherwise the field is unconditionally injected and never@3137: // the JVM uses the injected one. This is to ensure that name never@3137: // collisions don't occur. In general may_be_java should be false never@3137: // unless there's a good reason. never@3137: never@3137: class InjectedField { never@3137: public: never@3137: const SystemDictionary::WKID klass_id; never@3137: const vmSymbols::SID name_index; never@3137: const vmSymbols::SID signature_index; never@3137: const bool may_be_java; never@3137: never@3137: coleenp@4037: Klass* klass() const { return SystemDictionary::well_known_klass(klass_id); } never@3137: Symbol* name() const { return lookup_symbol(name_index); } never@3137: Symbol* signature() const { return lookup_symbol(signature_index); } never@3137: never@3137: int compute_offset(); never@3137: never@3137: // Find the Symbol for this index never@3137: static Symbol* lookup_symbol(int symbol_index) { never@3137: return vmSymbols::symbol_at((vmSymbols::SID)symbol_index); never@3137: } never@3137: }; never@3137: never@3137: #define DECLARE_INJECTED_FIELD_ENUM(klass, name, signature, may_be_java) \ never@3137: klass##_##name##_enum, never@3137: never@3137: #define ALL_INJECTED_FIELDS(macro) \ never@3137: CLASS_INJECTED_FIELDS(macro) \ coleenp@4037: CLASSLOADER_INJECTED_FIELDS(macro) \ twisti@3969: MEMBERNAME_INJECTED_FIELDS(macro) never@3137: duke@435: // Interface to hard-coded offset checking duke@435: duke@435: class JavaClasses : AllStatic { duke@435: private: never@3137: never@3137: static InjectedField _injected_fields[]; never@3137: duke@435: static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; duke@435: static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; jrose@567: static bool check_constant(const char *klass_name, int constant, const char *field_name, const char* field_sig) PRODUCT_RETURN0; never@3137: duke@435: public: never@3137: enum InjectedFieldID { never@3137: ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD_ENUM) never@3137: MAX_enum never@3137: }; never@3137: never@3137: static int compute_injected_offset(InjectedFieldID id); never@3137: duke@435: static void compute_hard_coded_offsets(); duke@435: static void compute_offsets(); duke@435: static void check_offsets() PRODUCT_RETURN; never@3137: never@3137: static InjectedField* get_injected(Symbol* class_name, int* field_count); duke@435: }; stefank@2314: never@3137: #undef DECLARE_INJECTED_FIELD_ENUM never@3137: stefank@2314: #endif // SHARE_VM_CLASSFILE_JAVACLASSES_HPP