truffle: src/share/vm/prims/jni.cpp comparison

comparison src/share/vm/prims/jni.cpp @ 6725:da91efe96a93

6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>

author	coleenp
date	Sat, 01 Sep 2012 13:25:18 -0400
parents	d2a62e0f25eb
children	d8ce2825b193 fb19af007ffc

comparison

equal deleted inserted replaced

-:36d1d483d5d6
+:da91efe96a93
 #include "memory/oopFactory.hpp"
 #include "memory/universe.inline.hpp"
 #include "oops/instanceKlass.hpp"
 #include "oops/instanceOop.hpp"
 #include "oops/markOop.hpp"
-#include "oops/methodOop.hpp"
+#include "oops/method.hpp"
 #include "oops/objArrayKlass.hpp"
 #include "oops/objArrayOop.hpp"
 #include "oops/oop.inline.hpp"
 #include "oops/symbol.hpp"
 #include "oops/typeArrayKlass.hpp"
 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) )
 // out-of-line helpers for class jfieldIDWorkaround:
-bool jfieldIDWorkaround::is_valid_jfieldID(klassOop k, jfieldID id) {
+bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) {
 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) {
 uintptr_t as_uint = (uintptr_t) id;
 intptr_t offset = raw_instance_offset(id);
 if (is_checked_jfieldID(id)) {
 if (!klass_hash_ok(k, id)) {
 return false;
 }
 }
-return instanceKlass::cast(k)->contains_field_offset(offset);
+return InstanceKlass::cast(k)->contains_field_offset(offset);
 } else {
 JNIid* result = (JNIid*) id;
 #ifdef ASSERT
 return result != NULL && result->is_static_field_id();
 #else
 #endif
 }
 }
-intptr_t jfieldIDWorkaround::encode_klass_hash(klassOop k, intptr_t offset) {
+intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) {
 if (offset <= small_offset_mask) {
-klassOop field_klass = k;
+Klass* field_klass = k;
-klassOop super_klass = Klass::cast(field_klass)->super();
+Klass* super_klass = Klass::cast(field_klass)->super();
 // With compressed oops the most super class with nonstatic fields would
 // be the owner of fields embedded in the header.
-while (instanceKlass::cast(super_klass)->has_nonstatic_fields() &&
+while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() &&
-instanceKlass::cast(super_klass)->contains_field_offset(offset)) {
+InstanceKlass::cast(super_klass)->contains_field_offset(offset)) {
 field_klass = super_klass;   // super contains the field also
 super_klass = Klass::cast(field_klass)->super();
 }
 debug_only(No_Safepoint_Verifier nosafepoint;)
 uintptr_t klass_hash = field_klass->identity_hash();
 #endif
 return 0;
 }
 }
-bool jfieldIDWorkaround::klass_hash_ok(klassOop k, jfieldID id) {
+bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) {
 uintptr_t as_uint = (uintptr_t) id;
 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask;
 do {
 debug_only(No_Safepoint_Verifier nosafepoint;)
 // Could use a non-blocking query for identity_hash here...
 k = Klass::cast(k)->super();
 } while (k != NULL);
 return false;
 }
-void jfieldIDWorkaround::verify_instance_jfieldID(klassOop k, jfieldID id) {
+void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) {
 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" );
 uintptr_t as_uint = (uintptr_t) id;
 intptr_t offset = raw_instance_offset(id);
 if (VerifyJNIFields) {
 if (is_checked_jfieldID(id)) {
 }
 #endif
 #endif
 }
 }
-guarantee(instanceKlass::cast(k)->contains_field_offset(offset),
+guarantee(InstanceKlass::cast(k)->contains_field_offset(offset),
 "Bug in native code: jfieldID offset must address interior of object");
 }
 // Pick a reasonable higher bound for local capacity requested
 // for EnsureLocalCapacity and PushLocalFrame.  We don't want it too
 query_lock_ownership((JavaThread*)THREAD, class_loader) !=
 ObjectSynchronizer::owner_self) {
 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc();
 }
 }
-klassOop k = SystemDictionary::resolve_from_stream(class_name, class_loader,
+Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader,
 Handle(), &st, true,
 CHECK_NULL);
 if (TraceClassResolution && k != NULL) {
 trace_class_resolution(k);
 CLEAR_PENDING_EXCEPTION;
 THROW_HANDLE_0(ex);
 }
 oop mirror = (oop) result.get_jobject();
 loader = Handle(THREAD,
-instanceKlass::cast(java_lang_Class::as_klassOop(mirror))->class_loader());
+InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader());
 protection_domain = Handle(THREAD,
-instanceKlass::cast(java_lang_Class::as_klassOop(mirror))->protection_domain());
+InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain());
 }
 } else {
 // We call ClassLoader.getSystemClassLoader to obtain the system class loader.
 loader = Handle(THREAD, SystemDictionary::java_system_loader());
 }
 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
 result = find_class_from_class_loader(env, sym, true, loader,
 protection_domain, true, thread);
 if (TraceClassResolution && result != NULL) {
-trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
 }
 // If we were the first invocation of jni_FindClass, we enable compilation again
 // rather than just allowing invocation counter to overflow and decay.
 // Controlled by flag DelayCompilationDuringStartup.
 } else {
 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
 mirror = java_lang_reflect_Method::clazz(reflected);
 slot   = java_lang_reflect_Method::slot(reflected);
 }
-klassOop k     = java_lang_Class::as_klassOop(mirror);
+Klass* k     = java_lang_Class::as_Klass(mirror);
 KlassHandle k1(THREAD, k);
 // Make sure class is initialized before handing id's out to methods
 Klass::cast(k1())->initialize(CHECK_NULL);
-methodOop m = instanceKlass::cast(k1())->method_with_idnum(slot);
+Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot);
 ret = m==NULL? NULL : m->jmethod_id();  // return NULL if reflected method deleted
 return ret;
 JNI_END
 #ifndef USDT2
 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret);
 // field is a handle to a java.lang.reflect.Field object
 oop reflected   = JNIHandles::resolve_non_null(field);
 oop mirror      = java_lang_reflect_Field::clazz(reflected);
-klassOop k      = java_lang_Class::as_klassOop(mirror);
+Klass* k      = java_lang_Class::as_Klass(mirror);
 int slot        = java_lang_reflect_Field::slot(reflected);
 int modifiers   = java_lang_reflect_Field::modifiers(reflected);
 KlassHandle k1(THREAD, k);
 // Make sure class is initialized before handing id's out to fields
 Klass::cast(k1())->initialize(CHECK_NULL);
 // First check if this is a static field
 if (modifiers & JVM_ACC_STATIC) {
-intptr_t offset = instanceKlass::cast(k1())->field_offset( slot );
+intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
-JNIid* id = instanceKlass::cast(k1())->jni_id_for(offset);
+JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset);
 assert(id != NULL, "corrupt Field object");
 debug_only(id->set_is_static_field_id();)
-// A jfieldID for a static field is a JNIid specifying the field holder and the offset within the klassOop
+// A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
 ret = jfieldIDWorkaround::to_static_jfieldID(id);
 return ret;
 }
 // The slot is the index of the field description in the field-array
 // The jfieldID is the offset of the field within the object
 // It may also have hash bits for k, if VerifyJNIFields is turned on.
-intptr_t offset = instanceKlass::cast(k1())->field_offset( slot );
+intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
-assert(instanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");
+assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");
 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset);
 return ret;
 JNI_END
 #ifndef USDT2
 env, cls, (uintptr_t) method_id, isStatic);
 #endif /* USDT2 */
 jobject ret = NULL;
 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret);
-methodHandle m (THREAD, JNIHandles::resolve_jmethod_id(method_id));
+methodHandle m (THREAD, Method::resolve_jmethod_id(method_id));
 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match");
 oop reflection_method;
 if (m->is_initializer()) {
 reflection_method = Reflection::new_constructor(m, CHECK_NULL);
 } else {
 // Rules of Class.getSuperClass as implemented by KLass::java_super:
 // arrays return Object
 // interfaces return NULL
 // proper classes return Klass::super()
-klassOop k = java_lang_Class::as_klassOop(mirror);
+Klass* k = java_lang_Class::as_Klass(mirror);
 if (Klass::cast(k)->is_interface()) return NULL;
 // return mirror for superclass
-klassOop super = Klass::cast(k)->java_super();
+Klass* super = Klass::cast(k)->java_super();
 // super2 is the value computed by the compiler's getSuperClass intrinsic:
-debug_only(klassOop super2 = ( Klass::cast(k)->oop_is_javaArray()
+debug_only(Klass* super2 = ( Klass::cast(k)->oop_is_array()
 ? SystemDictionary::Object_klass()
 : Klass::cast(k)->super() ) );
 assert(super == super2,
 "java_super computation depends on interface, array, other super");
 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(Klass::cast(super)->java_mirror());
 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
 ret);
 #endif /* USDT2 */
 return ret;
 }
-klassOop sub_klass   = java_lang_Class::as_klassOop(sub_mirror);
+Klass* sub_klass   = java_lang_Class::as_Klass(sub_mirror);
-klassOop super_klass = java_lang_Class::as_klassOop(super_mirror);
+Klass* super_klass = java_lang_Class::as_Klass(super_mirror);
 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom");
 jboolean ret = Klass::cast(sub_klass)->is_subtype_of(super_klass) ?
 JNI_TRUE : JNI_FALSE;
 #ifndef USDT2
 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
 env, clazz, (char *) message);
 #endif /* USDT2 */
 jint ret = JNI_OK;
 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret);
-instanceKlass* k = instanceKlass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));
+InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
 Symbol*  name = k->name();
 Handle class_loader (THREAD,  k->class_loader());
 Handle protection_domain (THREAD, k->protection_domain());
 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);
 ShouldNotReachHere();
 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)
 : JNI_ArgumentPusher(signature) {
 set_ap(rap);
 }
 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)
-: JNI_ArgumentPusher(JNIHandles::resolve_jmethod_id(method_id)->signature()) {
+: JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
 set_ap(rap);
 }
 // Optimized path if we have the bitvector form of signature
 void iterate( uint64_t fingerprint ) {
 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)
 : JNI_ArgumentPusher(signature) {
 set_ap(rap);
 }
 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)
-: JNI_ArgumentPusher(JNIHandles::resolve_jmethod_id(method_id)->signature()) {
+: JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
 set_ap(rap);
 }
 // Optimized path if we have the bitvector form of signature
 void iterate( uint64_t fingerprint ) {
 }
 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
-methodHandle method(THREAD, JNIHandles::resolve_jmethod_id(method_id));
+methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));
 // Create object to hold arguments for the JavaCall, and associate it with
 // the jni parser
 ResourceMark rm(THREAD);
 int number_of_parameters = method->size_of_parameters();
 THROW(vmSymbols::java_lang_NullPointerException());
 }
 Handle h_recv(THREAD, recv);
 int number_of_parameters;
-methodOop selected_method;
+Method* selected_method;
 {
-methodOop m = JNIHandles::resolve_jmethod_id(method_id);
+Method* m = Method::resolve_jmethod_id(method_id);
 number_of_parameters = m->size_of_parameters();
-klassOop holder = m->method_holder();
+Klass* holder = m->method_holder();
 if (!(Klass::cast(holder))->is_interface()) {
 // non-interface call -- for that little speed boost, don't handlize
 debug_only(No_Safepoint_Verifier nosafepoint;)
 if (call_type == JNI_VIRTUAL) {
 // jni_GetMethodID makes sure class is linked and initialized
 // so m should have a valid vtable index.
 int vtbl_index = m->vtable_index();
-if (vtbl_index != methodOopDesc::nonvirtual_vtable_index) {
+if (vtbl_index != Method::nonvirtual_vtable_index) {
-klassOop k = h_recv->klass();
+Klass* k = h_recv->klass();
 // k might be an arrayKlassOop but all vtables start at
 // the same place. The cast is to avoid virtual call and assertion.
-instanceKlass *ik = (instanceKlass*)k->klass_part();
+InstanceKlass *ik = (InstanceKlass*)k;
 selected_method = ik->method_at_vtable(vtbl_index);
 } else {
 // final method
 selected_method = m;
 }
 if (itbl_index == -1) {
 itbl_index = klassItable::compute_itable_index(m);
 m->set_cached_itable_index(itbl_index);
 // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again
 }
-klassOop k = h_recv->klass();
+Klass* k = h_recv->klass();
-selected_method = instanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);
+selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);
 }
 }
 methodHandle method(THREAD, selected_method);
 }
 }
 static instanceOop alloc_object(jclass clazz, TRAPS) {
-KlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));
+KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
 Klass::cast(k())->check_valid_for_instantiation(false, CHECK_NULL);
-instanceKlass::cast(k())->initialize(CHECK_NULL);
+InstanceKlass::cast(k())->initialize(CHECK_NULL);
-instanceOop ih = instanceKlass::cast(k())->allocate_instance(THREAD);
+instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);
 return ih;
 }
 #ifndef USDT2
 DT_RETURN_MARK_DECL(AllocObject, jobject);
 DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);
 #else /* USDT2 */
 HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(
 env, obj);
 #endif /* USDT2 */
-klassOop k = JNIHandles::resolve_non_null(obj)->klass();
+Klass* k = JNIHandles::resolve_non_null(obj)->klass();
 jclass ret =
 (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());
 #ifndef USDT2
 DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);
 #else /* USDT2 */
 env, obj, clazz);
 #endif /* USDT2 */
 jboolean ret = JNI_TRUE;
 if (obj != NULL) {
 ret = JNI_FALSE;
-klassOop k = java_lang_Class::as_klassOop(
+Klass* k = java_lang_Class::as_Klass(
 JNIHandles::resolve_non_null(clazz));
 if (k != NULL) {
 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;
 }
 }
 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {
 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
 }
 KlassHandle klass(THREAD,
-java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));
+java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
 // Make sure class is linked and initialized before handing id's out to
-// methodOops.
+// Method*s.
 Klass::cast(klass())->initialize(CHECK_NULL);
-methodOop m;
+Method* m;
 if (name == vmSymbols::object_initializer_name() ||
 name == vmSymbols::class_initializer_name()) {
 // Never search superclasses for constructors
 if (klass->oop_is_instance()) {
-m = instanceKlass::cast(klass())->find_method(name, signature);
+m = InstanceKlass::cast(klass())->find_method(name, signature);
 } else {
 m = NULL;
 }
 } else {
 m = klass->lookup_method(name, signature);
 // Look up interfaces
 if (m == NULL && klass->oop_is_instance()) {
-m = instanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,
+m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,
 signature);
 }
 }
 if (m == NULL || (m->is_static() != is_static)) {
 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
 (const ResultType&)ret);\
 \
 JavaValue jvalue(Tag); \
 JNI_ArgumentPusherVaArg ap(methodID, args); \
 /* Make sure class is initialized before trying to invoke its method */ \
-KlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls))); \
+KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \
 Klass::cast(k())->initialize(CHECK_0); \
 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
 va_end(args); \
 ret = jvalue.get_##ResultType(); \
 return ret;\
 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
 if (fieldname == NULL || signame == NULL) {
 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
 }
 KlassHandle k(THREAD,
-java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));
+java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
 // Make sure class is initialized before handing id's out to fields
 Klass::cast(k())->initialize(CHECK_NULL);
 fieldDescriptor fd;
 if (!Klass::cast(k())->oop_is_instance() ||
-!instanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {
+!InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {
 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
 }
 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop
 // It may also have hash bits for k, if VerifyJNIFields is turned on.
 #else /* USDT2 */
 HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(
 env, obj, (uintptr_t) fieldID);
 #endif /* USDT2 */
 oop o = JNIHandles::resolve_non_null(obj);
-klassOop k = o->klass();
+Klass* k = o->klass();
 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
 // Keep JVMTI addition small and only check enabled flag here.
 // jni_GetField_probe() assumes that is okay to create handles.
 if (JvmtiExport::should_post_field_access()) {
 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);
 if (UseG1GC) {
 bool needs_barrier = false;
 if (ret != NULL &&
 offset == java_lang_ref_Reference::referent_offset &&
-instanceKlass::cast(k)->reference_type() != REF_NONE) {
+InstanceKlass::cast(k)->reference_type() != REF_NONE) {
-assert(instanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");
+assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");
 needs_barrier = true;
 }
 if (needs_barrier) {
 oop referent = JNIHandles::resolve(ret);
 DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\
 Return ret = 0;\
 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
 \
 oop o = JNIHandles::resolve_non_null(obj); \
-klassOop k = o->klass(); \
+Klass* k = o->klass(); \
 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
 /* Keep JVMTI addition small and only check enabled flag here.       */ \
 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
 /* and creates a ResetNoHandleMark.                                   */ \
 if (JvmtiExport::should_post_field_access()) { \
 EntryProbe; \
 Return ret = 0;\
 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
 \
 oop o = JNIHandles::resolve_non_null(obj); \
-klassOop k = o->klass(); \
+Klass* k = o->klass(); \
 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
 /* Keep JVMTI addition small and only check enabled flag here.       */ \
 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
 /* and creates a ResetNoHandleMark.                                   */ \
 if (JvmtiExport::should_post_field_access()) { \
 #else /* USDT2 */
 HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(
 env, obj, (uintptr_t) fieldID, value);
 #endif /* USDT2 */
 oop o = JNIHandles::resolve_non_null(obj);
-klassOop k = o->klass();
+Klass* k = o->klass();
 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
 // Keep JVMTI addition small and only check enabled flag here.
 // jni_SetField_probe_nh() assumes that is not okay to create handles
 // and creates a ResetNoHandleMark.
 if (JvmtiExport::should_post_field_modification()) {
 ( JNIEnv*, jobject, jfieldID FP_SELECT_##Result(COMMA Argument,/*empty*/) ) ); \
 HS_DTRACE_PROBE_N(hotspot_jni, Set##Result##Field__entry, \
 ( env, obj, fieldID FP_SELECT_##Result(COMMA value,/*empty*/) ) ); \
 \
 oop o = JNIHandles::resolve_non_null(obj); \
-klassOop k = o->klass(); \
+Klass* k = o->klass(); \
 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
 /* Keep JVMTI addition small and only check enabled flag here.       */ \
 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
 /* and creates a ResetNoHandleMark.                                   */ \
 if (JvmtiExport::should_post_field_modification()) { \
 JNIWrapper("Set" XSTR(Result) "Field"); \
 \
 EntryProbe; \
 \
 oop o = JNIHandles::resolve_non_null(obj); \
-klassOop k = o->klass(); \
+Klass* k = o->klass(); \
 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
 /* Keep JVMTI addition small and only check enabled flag here.       */ \
 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
 /* and creates a ResetNoHandleMark.                                   */ \
 if (JvmtiExport::should_post_field_modification()) { \
 jobject ret = NULL;
 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);
 fieldDescriptor fd;
 bool found = false;
-klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));
 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");
 if (isStatic) {
-// Static field. The fieldID a JNIid specifying the field holder and the offset within the klassOop.
+// Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.
 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
 assert(id->is_static_field_id(), "invalid static field id");
 found = id->find_local_field(&fd);
 } else {
 // Non-static field. The fieldID is really the offset of the field within the instanceOop.
 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
-found = instanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);
+found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);
 }
 assert(found, "bad fieldID passed into jni_ToReflectedField");
 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
 ret = JNIHandles::make_local(env, reflected);
 return ret;
 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
 if (fieldname == NULL || signame == NULL) {
 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
 }
 KlassHandle k(THREAD,
-java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));
+java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
 // Make sure class is initialized before handing id's out to static fields
 Klass::cast(k())->initialize(CHECK_NULL);
 fieldDescriptor fd;
 if (!Klass::cast(k())->oop_is_instance() ||
-!instanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {
+!InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {
 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
 }
-// A jfieldID for a static field is a JNIid specifying the field holder and the offset within the klassOop
+// A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
-JNIid* id = instanceKlass::cast(fd.field_holder())->jni_id_for(fd.offset());
+JNIid* id = InstanceKlass::cast(fd.field_holder())->jni_id_for(fd.offset());
 debug_only(id->set_is_static_field_id();)
 debug_only(id->verify(fd.field_holder()));
 ret = jfieldIDWorkaround::to_static_jfieldID(id);
 #else /* USDT2 */
 HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(
 env, clazz, (uintptr_t) fieldID);
 #endif /* USDT2 */
 #ifndef JNICHECK_KERNEL
-DEBUG_ONLY(klassOop param_k = jniCheck::validate_class(thread, clazz);)
+DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)
 #endif // JNICHECK_KERNEL
 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
 assert(id->is_static_field_id(), "invalid static field id");
 // Keep JVMTI addition small and only check enabled flag here.
 // jni_GetField_probe() assumes that is okay to create handles.
 HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(
 env, length, elementClass, initialElement);
 #endif /* USDT2 */
 jobjectArray ret = NULL;
 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);
-KlassHandle ek(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(elementClass)));
+KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));
-klassOop ako = Klass::cast(ek())->array_klass(CHECK_NULL);
+Klass* ako = Klass::cast(ek())->array_klass(CHECK_NULL);
 KlassHandle ak = KlassHandle(THREAD, ako);
 objArrayKlass::cast(ak())->initialize(CHECK_NULL);
 objArrayOop result = objArrayKlass::cast(ak())->allocate(length, CHECK_NULL);
 oop initial_value = JNIHandles::resolve(initialElement);
 if (initial_value != NULL) {  // array already initialized with NULL
 // The RegisterNatives call being attempted tried to register with a method that
 // is not native.  Ask JVM TI what prefixes have been specified.  Then check
 // to see if the native method is now wrapped with the prefixes.  See the
 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.
-static methodOop find_prefixed_native(KlassHandle k,
+static Method* find_prefixed_native(KlassHandle k,
 Symbol* name, Symbol* signature, TRAPS) {
 ResourceMark rm(THREAD);
-methodOop method;
+Method* method;
 int name_len = name->utf8_length();
 char* name_str = name->as_utf8();
 int prefix_count;
 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);
 for (int i = 0; i < prefix_count; i++) {
 }
 return NULL; // not found
 }
 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {
-methodOop method = Klass::cast(k())->lookup_method(name, signature);
+Method* method = Klass::cast(k())->lookup_method(name, signature);
 if (method == NULL) {
 ResourceMark rm;
 stringStream st;
 st.print("Method %s name or signature does not match",
-methodOopDesc::name_and_sig_as_C_string(Klass::cast(k()), name, signature));
+Method::name_and_sig_as_C_string(Klass::cast(k()), name, signature));
 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
 }
 if (!method->is_native()) {
 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)
 method = find_prefixed_native(k, name, signature, THREAD);
 if (method == NULL) {
 ResourceMark rm;
 stringStream st;
 st.print("Method %s is not declared as native",
-methodOopDesc::name_and_sig_as_C_string(Klass::cast(k()), name, signature));
+Method::name_and_sig_as_C_string(Klass::cast(k()), name, signature));
 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
 }
 }
 if (entry != NULL) {
 method->set_native_function(entry,
-methodOopDesc::native_bind_event_is_interesting);
+Method::native_bind_event_is_interesting);
 } else {
 method->clear_native_function();
 }
 if (PrintJNIResolving) {
 ResourceMark rm(THREAD);
 env, clazz, (void *) methods, nMethods);
 #endif /* USDT2 */
 jint ret = 0;
 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);
-KlassHandle h_k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));
+KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
 for (int index = 0; index < nMethods; index++) {
 const char* meth_name = methods[index].name;
 const char* meth_sig = methods[index].signature;
 int meth_name_len = (int)strlen(meth_name);
 DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);
 #else /* USDT2 */
 HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(
 env, clazz);
 #endif /* USDT2 */
-klassOop k   = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz));
+Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));
 //%note jni_2
 if (Klass::cast(k)->oop_is_instance()) {
-for (int index = 0; index < instanceKlass::cast(k)->methods()->length(); index++) {
+for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {
-methodOop m = methodOop(instanceKlass::cast(k)->methods()->obj_at(index));
+Method* m = InstanceKlass::cast(k)->methods()->at(index);
 if (m->is_native()) {
 m->clear_native_function();
 m->set_signature_handler(NULL);
 }
 }
 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
 jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
 if (TraceClassResolution && result != NULL) {
-trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
 }
 return result;
 }
 // These lookups are done with the NULL (bootstrap) ClassLoader to

Mercurial > hg > truffle

comparison src/share/vm/prims/jni.cpp @ 6725:da91efe96a93