author | dnsimon |
Fri, 05 Oct 2018 20:03:14 +0200 | |
changeset 52033 | d6aa9ea2405d |
parent 52014 | 1aa9beac610e |
child 52062 | 8dbf1a13af49 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2018, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "classfile/classLoaderData.inline.hpp" |
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#include "classfile/classLoaderDataGraph.inline.hpp" |
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#include "classfile/dictionary.hpp" |
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#include "classfile/javaClasses.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/vmSymbols.hpp" |
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#include "gc/shared/collectedHeap.inline.hpp" |
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#include "logging/log.hpp" |
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#include "memory/heapInspection.hpp" |
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#include "memory/metadataFactory.hpp" |
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#include "memory/metaspaceClosure.hpp" |
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#include "memory/metaspaceShared.hpp" |
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#include "memory/oopFactory.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "oops/compressedOops.inline.hpp" |
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#include "oops/instanceKlass.hpp" |
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#include "oops/klass.inline.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "oops/oopHandle.inline.hpp" |
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#include "runtime/atomic.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/orderAccess.hpp" |
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#include "utilities/macros.hpp" |
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#include "utilities/stack.inline.hpp" |
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void Klass::set_java_mirror(Handle m) { |
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assert(!m.is_null(), "New mirror should never be null."); |
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assert(_java_mirror.resolve() == NULL, "should only be used to initialize mirror"); |
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_java_mirror = class_loader_data()->add_handle(m); |
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} |
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oop Klass::java_mirror() const { |
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return _java_mirror.resolve(); |
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} |
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bool Klass::is_cloneable() const { |
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return _access_flags.is_cloneable_fast() || |
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is_subtype_of(SystemDictionary::Cloneable_klass()); |
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} |
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void Klass::set_is_cloneable() { |
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if (name() == vmSymbols::java_lang_invoke_MemberName()) { |
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assert(is_final(), "no subclasses allowed"); |
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// MemberName cloning should not be intrinsified and always happen in JVM_Clone. |
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} else if (is_instance_klass() && InstanceKlass::cast(this)->reference_type() != REF_NONE) { |
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// Reference cloning should not be intrinsified and always happen in JVM_Clone. |
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} else { |
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_access_flags.set_is_cloneable_fast(); |
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} |
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} |
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void Klass::set_name(Symbol* n) { |
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_name = n; |
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if (_name != NULL) _name->increment_refcount(); |
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} |
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bool Klass::is_subclass_of(const Klass* k) const { |
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// Run up the super chain and check |
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if (this == k) return true; |
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Klass* t = const_cast<Klass*>(this)->super(); |
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while (t != NULL) { |
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if (t == k) return true; |
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t = t->super(); |
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} |
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return false; |
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} |
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||
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bool Klass::search_secondary_supers(Klass* k) const { |
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// Put some extra logic here out-of-line, before the search proper. |
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// This cuts down the size of the inline method. |
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// This is necessary, since I am never in my own secondary_super list. |
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if (this == k) |
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return true; |
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// Scan the array-of-objects for a match |
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int cnt = secondary_supers()->length(); |
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for (int i = 0; i < cnt; i++) { |
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if (secondary_supers()->at(i) == k) { |
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((Klass*)this)->set_secondary_super_cache(k); |
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return true; |
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} |
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} |
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return false; |
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} |
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// Return self, except for abstract classes with exactly 1 |
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// implementor. Then return the 1 concrete implementation. |
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Klass *Klass::up_cast_abstract() { |
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Klass *r = this; |
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while( r->is_abstract() ) { // Receiver is abstract? |
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Klass *s = r->subklass(); // Check for exactly 1 subklass |
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if( !s || s->next_sibling() ) // Oops; wrong count; give up |
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return this; // Return 'this' as a no-progress flag |
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r = s; // Loop till find concrete class |
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} |
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return r; // Return the 1 concrete class |
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} |
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// Find LCA in class hierarchy |
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Klass *Klass::LCA( Klass *k2 ) { |
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Klass *k1 = this; |
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while( 1 ) { |
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if( k1->is_subtype_of(k2) ) return k2; |
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if( k2->is_subtype_of(k1) ) return k1; |
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k1 = k1->super(); |
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k2 = k2->super(); |
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} |
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} |
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void Klass::check_valid_for_instantiation(bool throwError, TRAPS) { |
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ResourceMark rm(THREAD); |
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THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError() |
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: vmSymbols::java_lang_InstantiationException(), external_name()); |
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} |
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void Klass::copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS) { |
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ResourceMark rm(THREAD); |
147 |
assert(s != NULL, "Throw NPE!"); |
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THROW_MSG(vmSymbols::java_lang_ArrayStoreException(), |
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err_msg("arraycopy: source type %s is not an array", s->klass()->external_name())); |
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} |
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void Klass::initialize(TRAPS) { |
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ShouldNotReachHere(); |
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} |
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bool Klass::compute_is_subtype_of(Klass* k) { |
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assert(k->is_klass(), "argument must be a class"); |
159 |
return is_subclass_of(k); |
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160 |
} |
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161 |
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Klass* Klass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const { |
163 |
#ifdef ASSERT |
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164 |
tty->print_cr("Error: find_field called on a klass oop." |
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165 |
" Likely error: reflection method does not correctly" |
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166 |
" wrap return value in a mirror object."); |
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167 |
#endif |
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168 |
ShouldNotReachHere(); |
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169 |
return NULL; |
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170 |
} |
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Method* Klass::uncached_lookup_method(const Symbol* name, const Symbol* signature, |
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OverpassLookupMode overpass_mode, |
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PrivateLookupMode private_mode) const { |
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#ifdef ASSERT |
176 |
tty->print_cr("Error: uncached_lookup_method called on a klass oop." |
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177 |
" Likely error: reflection method does not correctly" |
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178 |
" wrap return value in a mirror object."); |
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#endif |
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ShouldNotReachHere(); |
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181 |
return NULL; |
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} |
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||
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void* Klass::operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, TRAPS) throw() { |
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return Metaspace::allocate(loader_data, word_size, MetaspaceObj::ClassType, THREAD); |
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} |
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// "Normal" instantiation is preceeded by a MetaspaceObj allocation |
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// which zeros out memory - calloc equivalent. |
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// The constructor is also used from CppVtableCloner, |
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// which doesn't zero out the memory before calling the constructor. |
192 |
// Need to set the _java_mirror field explicitly to not hit an assert that the field |
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193 |
// should be NULL before setting it. |
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50752 | 194 |
Klass::Klass(KlassID id) : _id(id), |
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_java_mirror(NULL), |
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_prototype_header(markOopDesc::prototype()), |
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_shared_class_path_index(-1) { |
49329 | 198 |
CDS_ONLY(_shared_class_flags = 0;) |
199 |
CDS_JAVA_HEAP_ONLY(_archived_mirror = 0;) |
|
34666 | 200 |
_primary_supers[0] = this; |
201 |
set_super_check_offset(in_bytes(primary_supers_offset())); |
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1 | 202 |
} |
203 |
||
204 |
jint Klass::array_layout_helper(BasicType etype) { |
|
205 |
assert(etype >= T_BOOLEAN && etype <= T_OBJECT, "valid etype"); |
|
206 |
// Note that T_ARRAY is not allowed here. |
|
207 |
int hsize = arrayOopDesc::base_offset_in_bytes(etype); |
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int esize = type2aelembytes(etype); |
1 | 209 |
bool isobj = (etype == T_OBJECT); |
210 |
int tag = isobj ? _lh_array_tag_obj_value : _lh_array_tag_type_value; |
|
211 |
int lh = array_layout_helper(tag, hsize, etype, exact_log2(esize)); |
|
212 |
||
213 |
assert(lh < (int)_lh_neutral_value, "must look like an array layout"); |
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assert(layout_helper_is_array(lh), "correct kind"); |
1 | 215 |
assert(layout_helper_is_objArray(lh) == isobj, "correct kind"); |
216 |
assert(layout_helper_is_typeArray(lh) == !isobj, "correct kind"); |
|
217 |
assert(layout_helper_header_size(lh) == hsize, "correct decode"); |
|
218 |
assert(layout_helper_element_type(lh) == etype, "correct decode"); |
|
219 |
assert(1 << layout_helper_log2_element_size(lh) == esize, "correct decode"); |
|
220 |
||
221 |
return lh; |
|
222 |
} |
|
223 |
||
224 |
bool Klass::can_be_primary_super_slow() const { |
|
225 |
if (super() == NULL) |
|
226 |
return true; |
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else if (super()->super_depth() >= primary_super_limit()-1) |
1 | 228 |
return false; |
229 |
else |
|
230 |
return true; |
|
231 |
} |
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232 |
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void Klass::initialize_supers(Klass* k, Array<InstanceKlass*>* transitive_interfaces, TRAPS) { |
1 | 234 |
if (FastSuperclassLimit == 0) { |
235 |
// None of the other machinery matters. |
|
236 |
set_super(k); |
|
237 |
return; |
|
238 |
} |
|
239 |
if (k == NULL) { |
|
240 |
set_super(NULL); |
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_primary_supers[0] = this; |
1 | 242 |
assert(super_depth() == 0, "Object must already be initialized properly"); |
4571 | 243 |
} else if (k != super() || k == SystemDictionary::Object_klass()) { |
244 |
assert(super() == NULL || super() == SystemDictionary::Object_klass(), |
|
1 | 245 |
"initialize this only once to a non-trivial value"); |
246 |
set_super(k); |
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247 |
Klass* sup = k; |
1 | 248 |
int sup_depth = sup->super_depth(); |
249 |
juint my_depth = MIN2(sup_depth + 1, (int)primary_super_limit()); |
|
250 |
if (!can_be_primary_super_slow()) |
|
251 |
my_depth = primary_super_limit(); |
|
252 |
for (juint i = 0; i < my_depth; i++) { |
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_primary_supers[i] = sup->_primary_supers[i]; |
1 | 254 |
} |
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255 |
Klass* *super_check_cell; |
1 | 256 |
if (my_depth < primary_super_limit()) { |
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257 |
_primary_supers[my_depth] = this; |
1 | 258 |
super_check_cell = &_primary_supers[my_depth]; |
259 |
} else { |
|
260 |
// Overflow of the primary_supers array forces me to be secondary. |
|
261 |
super_check_cell = &_secondary_super_cache; |
|
262 |
} |
|
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263 |
set_super_check_offset((address)super_check_cell - (address) this); |
1 | 264 |
|
265 |
#ifdef ASSERT |
|
266 |
{ |
|
267 |
juint j = super_depth(); |
|
268 |
assert(j == my_depth, "computed accessor gets right answer"); |
|
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269 |
Klass* t = this; |
14488 | 270 |
while (!t->can_be_primary_super()) { |
271 |
t = t->super(); |
|
272 |
j = t->super_depth(); |
|
1 | 273 |
} |
274 |
for (juint j1 = j+1; j1 < primary_super_limit(); j1++) { |
|
275 |
assert(primary_super_of_depth(j1) == NULL, "super list padding"); |
|
276 |
} |
|
277 |
while (t != NULL) { |
|
278 |
assert(primary_super_of_depth(j) == t, "super list initialization"); |
|
14488 | 279 |
t = t->super(); |
1 | 280 |
--j; |
281 |
} |
|
282 |
assert(j == (juint)-1, "correct depth count"); |
|
283 |
} |
|
284 |
#endif |
|
285 |
} |
|
286 |
||
287 |
if (secondary_supers() == NULL) { |
|
288 |
||
289 |
// Now compute the list of secondary supertypes. |
|
290 |
// Secondaries can occasionally be on the super chain, |
|
291 |
// if the inline "_primary_supers" array overflows. |
|
292 |
int extras = 0; |
|
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|
293 |
Klass* p; |
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|
294 |
for (p = super(); !(p == NULL || p->can_be_primary_super()); p = p->super()) { |
1 | 295 |
++extras; |
296 |
} |
|
297 |
||
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|
298 |
ResourceMark rm(THREAD); // need to reclaim GrowableArrays allocated below |
1 | 299 |
|
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300 |
// Compute the "real" non-extra secondaries. |
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|
301 |
GrowableArray<Klass*>* secondaries = compute_secondary_supers(extras, transitive_interfaces); |
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|
302 |
if (secondaries == NULL) { |
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303 |
// secondary_supers set by compute_secondary_supers |
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304 |
return; |
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|
305 |
} |
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|
306 |
|
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|
307 |
GrowableArray<Klass*>* primaries = new GrowableArray<Klass*>(extras); |
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|
308 |
|
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|
309 |
for (p = super(); !(p == NULL || p->can_be_primary_super()); p = p->super()) { |
1 | 310 |
int i; // Scan for overflow primaries being duplicates of 2nd'arys |
311 |
||
312 |
// This happens frequently for very deeply nested arrays: the |
|
313 |
// primary superclass chain overflows into the secondary. The |
|
314 |
// secondary list contains the element_klass's secondaries with |
|
315 |
// an extra array dimension added. If the element_klass's |
|
316 |
// secondary list already contains some primary overflows, they |
|
317 |
// (with the extra level of array-ness) will collide with the |
|
318 |
// normal primary superclass overflows. |
|
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|
319 |
for( i = 0; i < secondaries->length(); i++ ) { |
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|
320 |
if( secondaries->at(i) == p ) |
1 | 321 |
break; |
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|
322 |
} |
1 | 323 |
if( i < secondaries->length() ) |
324 |
continue; // It's a dup, don't put it in |
|
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|
325 |
primaries->push(p); |
1 | 326 |
} |
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|
327 |
// Combine the two arrays into a metadata object to pack the array. |
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|
328 |
// The primaries are added in the reverse order, then the secondaries. |
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|
329 |
int new_length = primaries->length() + secondaries->length(); |
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|
330 |
Array<Klass*>* s2 = MetadataFactory::new_array<Klass*>( |
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|
331 |
class_loader_data(), new_length, CHECK); |
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|
332 |
int fill_p = primaries->length(); |
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|
333 |
for (int j = 0; j < fill_p; j++) { |
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|
334 |
s2->at_put(j, primaries->pop()); // add primaries in reverse order. |
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|
335 |
} |
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|
336 |
for( int j = 0; j < secondaries->length(); j++ ) { |
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|
337 |
s2->at_put(j+fill_p, secondaries->at(j)); // add secondaries on the end. |
1 | 338 |
} |
339 |
||
340 |
#ifdef ASSERT |
|
341 |
// We must not copy any NULL placeholders left over from bootstrap. |
|
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|
342 |
for (int j = 0; j < s2->length(); j++) { |
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|
343 |
assert(s2->at(j) != NULL, "correct bootstrapping order"); |
1 | 344 |
} |
345 |
#endif |
|
346 |
||
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|
347 |
set_secondary_supers(s2); |
1 | 348 |
} |
349 |
} |
|
350 |
||
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|
351 |
GrowableArray<Klass*>* Klass::compute_secondary_supers(int num_extra_slots, |
51329
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8208999: Some use of Klass* should be replaced by InstanceKlass*
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|
352 |
Array<InstanceKlass*>* transitive_interfaces) { |
1 | 353 |
assert(num_extra_slots == 0, "override for complex klasses"); |
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|
354 |
assert(transitive_interfaces == NULL, "sanity"); |
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|
355 |
set_secondary_supers(Universe::the_empty_klass_array()); |
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|
356 |
return NULL; |
1 | 357 |
} |
358 |
||
359 |
||
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|
360 |
InstanceKlass* Klass::superklass() const { |
33611
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|
361 |
assert(super() == NULL || super()->is_instance_klass(), "must be instance klass"); |
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|
362 |
return _super == NULL ? NULL : InstanceKlass::cast(_super); |
1 | 363 |
} |
364 |
||
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|
365 |
void Klass::set_subklass(Klass* s) { |
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|
366 |
assert(s != this, "sanity check"); |
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|
367 |
_subklass = s; |
1 | 368 |
} |
369 |
||
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|
370 |
void Klass::set_next_sibling(Klass* s) { |
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|
371 |
assert(s != this, "sanity check"); |
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|
372 |
_next_sibling = s; |
1 | 373 |
} |
374 |
||
375 |
void Klass::append_to_sibling_list() { |
|
14078 | 376 |
debug_only(verify();) |
1 | 377 |
// add ourselves to superklass' subklass list |
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|
378 |
InstanceKlass* super = superklass(); |
1 | 379 |
if (super == NULL) return; // special case: class Object |
14078 | 380 |
assert((!super->is_interface() // interfaces cannot be supers |
1 | 381 |
&& (super->superklass() == NULL || !is_interface())), |
382 |
"an interface can only be a subklass of Object"); |
|
23515
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changeset
|
383 |
Klass* prev_first_subklass = super->subklass(); |
1 | 384 |
if (prev_first_subklass != NULL) { |
385 |
// set our sibling to be the superklass' previous first subklass |
|
386 |
set_next_sibling(prev_first_subklass); |
|
387 |
} |
|
388 |
// make ourselves the superklass' first subklass |
|
13728
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|
389 |
super->set_subklass(this); |
14078 | 390 |
debug_only(verify();) |
1 | 391 |
} |
392 |
||
50746
85789fb05154
8198909: [Graal] compiler/codecache/stress/UnexpectedDeoptimizationTest.java crashed with SIGSEGV
never
parents:
50735
diff
changeset
|
393 |
oop Klass::holder_phantom() const { |
85789fb05154
8198909: [Graal] compiler/codecache/stress/UnexpectedDeoptimizationTest.java crashed with SIGSEGV
never
parents:
50735
diff
changeset
|
394 |
return class_loader_data()->holder_phantom(); |
85789fb05154
8198909: [Graal] compiler/codecache/stress/UnexpectedDeoptimizationTest.java crashed with SIGSEGV
never
parents:
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diff
changeset
|
395 |
} |
85789fb05154
8198909: [Graal] compiler/codecache/stress/UnexpectedDeoptimizationTest.java crashed with SIGSEGV
never
parents:
50735
diff
changeset
|
396 |
|
49969
8624981f1ffa
8202447: Fix unloading_occurred to mean unloading_occurred
coleenp
parents:
49948
diff
changeset
|
397 |
void Klass::clean_weak_klass_links(bool unloading_occurred, bool clean_alive_klasses) { |
8624981f1ffa
8202447: Fix unloading_occurred to mean unloading_occurred
coleenp
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diff
changeset
|
398 |
if (!ClassUnloading || !unloading_occurred) { |
13728
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|
399 |
return; |
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changeset
|
400 |
} |
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changeset
|
401 |
|
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|
402 |
Klass* root = SystemDictionary::Object_klass(); |
882756847a04
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|
403 |
Stack<Klass*, mtGC> stack; |
882756847a04
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changeset
|
404 |
|
882756847a04
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changeset
|
405 |
stack.push(root); |
882756847a04
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changeset
|
406 |
while (!stack.is_empty()) { |
882756847a04
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|
407 |
Klass* current = stack.pop(); |
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|
408 |
|
49821
02c08e20d66c
8201537: Remove is_alive closure from Klass::is_loader_alive()
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changeset
|
409 |
assert(current->is_loader_alive(), "just checking, this should be live"); |
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|
410 |
|
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|
411 |
// Find and set the first alive subklass |
23515
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changeset
|
412 |
Klass* sub = current->subklass(); |
49821
02c08e20d66c
8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
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49816
diff
changeset
|
413 |
while (sub != NULL && !sub->is_loader_alive()) { |
1 | 414 |
#ifndef PRODUCT |
38151
fffedc5e5cf8
8154110: Update class* and safepoint* logging subsystems
mockner
parents:
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diff
changeset
|
415 |
if (log_is_enabled(Trace, class, unload)) { |
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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diff
changeset
|
416 |
ResourceMark rm; |
38151
fffedc5e5cf8
8154110: Update class* and safepoint* logging subsystems
mockner
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diff
changeset
|
417 |
log_trace(class, unload)("unlinking class (subclass): %s", sub->external_name()); |
14588
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|
418 |
} |
1 | 419 |
#endif |
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|
420 |
sub = sub->next_sibling(); |
1 | 421 |
} |
13728
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|
422 |
current->set_subklass(sub); |
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|
423 |
if (sub != NULL) { |
882756847a04
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changeset
|
424 |
stack.push(sub); |
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changeset
|
425 |
} |
882756847a04
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changeset
|
426 |
|
882756847a04
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changeset
|
427 |
// Find and set the first alive sibling |
23515
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diff
changeset
|
428 |
Klass* sibling = current->next_sibling(); |
49821
02c08e20d66c
8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
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49816
diff
changeset
|
429 |
while (sibling != NULL && !sibling->is_loader_alive()) { |
38151
fffedc5e5cf8
8154110: Update class* and safepoint* logging subsystems
mockner
parents:
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diff
changeset
|
430 |
if (log_is_enabled(Trace, class, unload)) { |
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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diff
changeset
|
431 |
ResourceMark rm; |
38151
fffedc5e5cf8
8154110: Update class* and safepoint* logging subsystems
mockner
parents:
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diff
changeset
|
432 |
log_trace(class, unload)("[Unlinking class (sibling) %s]", sibling->external_name()); |
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
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diff
changeset
|
433 |
} |
23515
f4872ef5df09
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diff
changeset
|
434 |
sibling = sibling->next_sibling(); |
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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diff
changeset
|
435 |
} |
13728
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|
436 |
current->set_next_sibling(sibling); |
882756847a04
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changeset
|
437 |
if (sibling != NULL) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
438 |
stack.push(sibling); |
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
14488
diff
changeset
|
439 |
} |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
440 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
441 |
// Clean the implementors list and method data. |
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33602
diff
changeset
|
442 |
if (clean_alive_klasses && current->is_instance_klass()) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
443 |
InstanceKlass* ik = InstanceKlass::cast(current); |
49821
02c08e20d66c
8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents:
49816
diff
changeset
|
444 |
ik->clean_weak_instanceklass_links(); |
41060
c72f3248ea0c
8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
dlong
parents:
40655
diff
changeset
|
445 |
|
c72f3248ea0c
8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
dlong
parents:
40655
diff
changeset
|
446 |
// JVMTI RedefineClasses creates previous versions that are not in |
c72f3248ea0c
8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
dlong
parents:
40655
diff
changeset
|
447 |
// the class hierarchy, so process them here. |
c72f3248ea0c
8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
dlong
parents:
40655
diff
changeset
|
448 |
while ((ik = ik->previous_versions()) != NULL) { |
49821
02c08e20d66c
8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents:
49816
diff
changeset
|
449 |
ik->clean_weak_instanceklass_links(); |
41060
c72f3248ea0c
8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
dlong
parents:
40655
diff
changeset
|
450 |
} |
1 | 451 |
} |
452 |
} |
|
453 |
} |
|
454 |
||
46746
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
455 |
void Klass::metaspace_pointers_do(MetaspaceClosure* it) { |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
456 |
if (log_is_enabled(Trace, cds)) { |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
457 |
ResourceMark rm; |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
458 |
log_trace(cds)("Iter(Klass): %p (%s)", this, external_name()); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
459 |
} |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
460 |
|
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
461 |
it->push(&_name); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
462 |
it->push(&_secondary_super_cache); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
463 |
it->push(&_secondary_supers); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
464 |
for (int i = 0; i < _primary_super_limit; i++) { |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
465 |
it->push(&_primary_supers[i]); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
466 |
} |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
467 |
it->push(&_super); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
468 |
it->push(&_subklass); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
469 |
it->push(&_next_sibling); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
470 |
it->push(&_next_link); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
471 |
|
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
472 |
vtableEntry* vt = start_of_vtable(); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
473 |
for (int i=0; i<vtable_length(); i++) { |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
474 |
it->push(vt[i].method_addr()); |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
475 |
} |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
476 |
} |
ea379ebb9447
8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents:
46413
diff
changeset
|
477 |
|
1 | 478 |
void Klass::remove_unshareable_info() { |
23872
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
479 |
assert (DumpSharedSpaces, "only called for DumpSharedSpaces"); |
50113 | 480 |
JFR_ONLY(REMOVE_ID(this);) |
47103
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
481 |
if (log_is_enabled(Trace, cds, unshareable)) { |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
482 |
ResourceMark rm; |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
483 |
log_trace(cds, unshareable)("remove: %s", external_name()); |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
484 |
} |
23872
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
485 |
|
1 | 486 |
set_subklass(NULL); |
487 |
set_next_sibling(NULL); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
488 |
set_next_link(NULL); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
489 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
490 |
// Null out class_loader_data because we don't share that yet. |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
491 |
set_class_loader_data(NULL); |
46413 | 492 |
set_is_shared(); |
1 | 493 |
} |
494 |
||
47103
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
495 |
void Klass::remove_java_mirror() { |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
496 |
assert (DumpSharedSpaces, "only called for DumpSharedSpaces"); |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
497 |
if (log_is_enabled(Trace, cds, unshareable)) { |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
498 |
ResourceMark rm; |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
499 |
log_trace(cds, unshareable)("remove java_mirror: %s", external_name()); |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
500 |
} |
47580 | 501 |
// Just null out the mirror. The class_loader_data() no longer exists. |
502 |
_java_mirror = NULL; |
|
47103
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
503 |
} |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
504 |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25492
diff
changeset
|
505 |
void Klass::restore_unshareable_info(ClassLoaderData* loader_data, Handle protection_domain, TRAPS) { |
46324
8764956ec928
8005165: Remove CPU-dependent code in self-patching vtables
iklam
parents:
46271
diff
changeset
|
506 |
assert(is_klass(), "ensure C++ vtable is restored"); |
46413 | 507 |
assert(is_shared(), "must be set"); |
50113 | 508 |
JFR_ONLY(RESTORE_ID(this);) |
47103
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
509 |
if (log_is_enabled(Trace, cds, unshareable)) { |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
510 |
ResourceMark rm; |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
511 |
log_trace(cds, unshareable)("restore: %s", external_name()); |
a993ec29ec75
8186842: Use Java class loaders for creating the CDS archive
ccheung
parents:
46968
diff
changeset
|
512 |
} |
39400
daf3af35d6bf
8159666: Better CDS support for Event-based tracing
iklam
parents:
38151
diff
changeset
|
513 |
|
23872
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
514 |
// If an exception happened during CDS restore, some of these fields may already be |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
515 |
// set. We leave the class on the CLD list, even if incomplete so that we don't |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
516 |
// modify the CLD list outside a safepoint. |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
517 |
if (class_loader_data() == NULL) { |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
518 |
// Restore class_loader_data to the null class loader data |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
519 |
set_class_loader_data(loader_data); |
1 | 520 |
|
23872
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
521 |
// Add to null class loader list first before creating the mirror |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
522 |
// (same order as class file parsing) |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
523 |
loader_data->add_class(this); |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
524 |
} |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
525 |
|
49329 | 526 |
Handle loader(THREAD, loader_data->class_loader()); |
527 |
ModuleEntry* module_entry = NULL; |
|
528 |
Klass* k = this; |
|
529 |
if (k->is_objArray_klass()) { |
|
530 |
k = ObjArrayKlass::cast(k)->bottom_klass(); |
|
531 |
} |
|
532 |
// Obtain klass' module. |
|
533 |
if (k->is_instance_klass()) { |
|
534 |
InstanceKlass* ik = (InstanceKlass*) k; |
|
535 |
module_entry = ik->module(); |
|
536 |
} else { |
|
537 |
module_entry = ModuleEntryTable::javabase_moduleEntry(); |
|
538 |
} |
|
539 |
// Obtain java.lang.Module, if available |
|
540 |
Handle module_handle(THREAD, ((module_entry != NULL) ? module_entry->module() : (oop)NULL)); |
|
541 |
||
542 |
if (this->has_raw_archived_mirror()) { |
|
50532 | 543 |
ResourceMark rm; |
49329 | 544 |
log_debug(cds, mirror)("%s has raw archived mirror", external_name()); |
545 |
if (MetaspaceShared::open_archive_heap_region_mapped()) { |
|
50532 | 546 |
bool present = java_lang_Class::restore_archived_mirror(this, loader, module_handle, |
547 |
protection_domain, |
|
548 |
CHECK); |
|
549 |
if (present) { |
|
49329 | 550 |
return; |
551 |
} |
|
552 |
} |
|
553 |
||
554 |
// No archived mirror data |
|
50532 | 555 |
log_debug(cds, mirror)("No archived mirror data for %s", external_name()); |
49329 | 556 |
_java_mirror = NULL; |
557 |
this->clear_has_raw_archived_mirror(); |
|
558 |
} |
|
559 |
||
23872
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
560 |
// Only recreate it if not present. A previous attempt to restore may have |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
561 |
// gotten an OOM later but keep the mirror if it was created. |
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
562 |
if (java_mirror() == NULL) { |
49329 | 563 |
log_trace(cds, mirror)("Recreate mirror for %s", external_name()); |
36508 | 564 |
java_lang_Class::create_mirror(this, loader, module_handle, protection_domain, CHECK); |
23872
536c66fc43d3
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
23515
diff
changeset
|
565 |
} |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7397
diff
changeset
|
566 |
} |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7397
diff
changeset
|
567 |
|
49329 | 568 |
#if INCLUDE_CDS_JAVA_HEAP |
569 |
// Used at CDS dump time to access the archived mirror. No GC barrier. |
|
570 |
oop Klass::archived_java_mirror_raw() { |
|
571 |
assert(has_raw_archived_mirror(), "must have raw archived mirror"); |
|
49592
77fb0be7d19f
8199946: Move load/store and encode/decode out of oopDesc
stefank
parents:
49393
diff
changeset
|
572 |
return CompressedOops::decode(_archived_mirror); |
49329 | 573 |
} |
574 |
||
51491
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51444
diff
changeset
|
575 |
narrowOop Klass::archived_java_mirror_raw_narrow() { |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51444
diff
changeset
|
576 |
assert(has_raw_archived_mirror(), "must have raw archived mirror"); |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51444
diff
changeset
|
577 |
return _archived_mirror; |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51444
diff
changeset
|
578 |
} |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51444
diff
changeset
|
579 |
|
49329 | 580 |
// No GC barrier |
581 |
void Klass::set_archived_java_mirror_raw(oop m) { |
|
582 |
assert(DumpSharedSpaces, "called only during runtime"); |
|
49592
77fb0be7d19f
8199946: Move load/store and encode/decode out of oopDesc
stefank
parents:
49393
diff
changeset
|
583 |
_archived_mirror = CompressedOops::encode(m); |
49329 | 584 |
} |
585 |
#endif // INCLUDE_CDS_JAVA_HEAP |
|
586 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
587 |
Klass* Klass::array_klass_or_null(int rank) { |
1 | 588 |
EXCEPTION_MARK; |
589 |
// No exception can be thrown by array_klass_impl when called with or_null == true. |
|
590 |
// (In anycase, the execption mark will fail if it do so) |
|
591 |
return array_klass_impl(true, rank, THREAD); |
|
592 |
} |
|
593 |
||
594 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
595 |
Klass* Klass::array_klass_or_null() { |
1 | 596 |
EXCEPTION_MARK; |
597 |
// No exception can be thrown by array_klass_impl when called with or_null == true. |
|
598 |
// (In anycase, the execption mark will fail if it do so) |
|
599 |
return array_klass_impl(true, THREAD); |
|
600 |
} |
|
601 |
||
602 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
603 |
Klass* Klass::array_klass_impl(bool or_null, int rank, TRAPS) { |
13952
e3cf184080bc
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
13728
diff
changeset
|
604 |
fatal("array_klass should be dispatched to InstanceKlass, ObjArrayKlass or TypeArrayKlass"); |
1 | 605 |
return NULL; |
606 |
} |
|
607 |
||
608 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
609 |
Klass* Klass::array_klass_impl(bool or_null, TRAPS) { |
13952
e3cf184080bc
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
13728
diff
changeset
|
610 |
fatal("array_klass should be dispatched to InstanceKlass, ObjArrayKlass or TypeArrayKlass"); |
1 | 611 |
return NULL; |
612 |
} |
|
613 |
||
52033
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
614 |
void Klass::check_array_allocation_length(int length, int max_length, TRAPS) { |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
615 |
if (length > max_length) { |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
616 |
if (!THREAD->in_retryable_allocation()) { |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
617 |
report_java_out_of_memory("Requested array size exceeds VM limit"); |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
618 |
JvmtiExport::post_array_size_exhausted(); |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
619 |
THROW_OOP(Universe::out_of_memory_error_array_size()); |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
620 |
} else { |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
621 |
THROW_OOP(Universe::out_of_memory_error_retry()); |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
622 |
} |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
623 |
} else if (length < 0) { |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
624 |
THROW_MSG(vmSymbols::java_lang_NegativeArraySizeException(), err_msg("%d", length)); |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
625 |
} |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
626 |
} |
d6aa9ea2405d
8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents:
52014
diff
changeset
|
627 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
628 |
oop Klass::class_loader() const { return class_loader_data()->class_loader(); } |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
629 |
|
33602 | 630 |
// In product mode, this function doesn't have virtual function calls so |
631 |
// there might be some performance advantage to handling InstanceKlass here. |
|
1 | 632 |
const char* Klass::external_name() const { |
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33602
diff
changeset
|
633 |
if (is_instance_klass()) { |
33602 | 634 |
const InstanceKlass* ik = static_cast<const InstanceKlass*>(this); |
51444
3e5d28e6de32
8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents:
51334
diff
changeset
|
635 |
if (ik->is_unsafe_anonymous()) { |
49066
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
636 |
char addr_buf[20]; |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
637 |
jio_snprintf(addr_buf, 20, "/" INTPTR_FORMAT, p2i(ik)); |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
638 |
size_t addr_len = strlen(addr_buf); |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
639 |
size_t name_len = name()->utf8_length(); |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
640 |
char* result = NEW_RESOURCE_ARRAY(char, name_len + addr_len + 1); |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
641 |
name()->as_klass_external_name(result, (int) name_len + 1); |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
642 |
assert(strlen(result) == name_len, ""); |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
643 |
strcpy(result + name_len, addr_buf); |
4aa67aba6c85
8197901: Crash during GC when logging level is debug
lmesnik
parents:
49056
diff
changeset
|
644 |
assert(strlen(result) == name_len + addr_len, ""); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
645 |
return result; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
646 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
647 |
} |
4094
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
2131
diff
changeset
|
648 |
if (name() == NULL) return "<unknown>"; |
1 | 649 |
return name()->as_klass_external_name(); |
650 |
} |
|
651 |
||
4094
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
2131
diff
changeset
|
652 |
const char* Klass::signature_name() const { |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
2131
diff
changeset
|
653 |
if (name() == NULL) return "<unknown>"; |
1 | 654 |
return name()->as_C_string(); |
655 |
} |
|
656 |
||
49368
2ed1c37df3a5
8197405: Improve messages of AbstractMethodErrors and IncompatibleClassChangeErrors.
goetz
parents:
49329
diff
changeset
|
657 |
const char* Klass::external_kind() const { |
2ed1c37df3a5
8197405: Improve messages of AbstractMethodErrors and IncompatibleClassChangeErrors.
goetz
parents:
49329
diff
changeset
|
658 |
if (is_interface()) return "interface"; |
2ed1c37df3a5
8197405: Improve messages of AbstractMethodErrors and IncompatibleClassChangeErrors.
goetz
parents:
49329
diff
changeset
|
659 |
if (is_abstract()) return "abstract class"; |
2ed1c37df3a5
8197405: Improve messages of AbstractMethodErrors and IncompatibleClassChangeErrors.
goetz
parents:
49329
diff
changeset
|
660 |
return "class"; |
2ed1c37df3a5
8197405: Improve messages of AbstractMethodErrors and IncompatibleClassChangeErrors.
goetz
parents:
49329
diff
changeset
|
661 |
} |
2ed1c37df3a5
8197405: Improve messages of AbstractMethodErrors and IncompatibleClassChangeErrors.
goetz
parents:
49329
diff
changeset
|
662 |
|
1 | 663 |
// Unless overridden, modifier_flags is 0. |
664 |
jint Klass::compute_modifier_flags(TRAPS) const { |
|
665 |
return 0; |
|
666 |
} |
|
667 |
||
668 |
int Klass::atomic_incr_biased_lock_revocation_count() { |
|
669 |
return (int) Atomic::add(1, &_biased_lock_revocation_count); |
|
670 |
} |
|
671 |
||
672 |
// Unless overridden, jvmti_class_status has no flags set. |
|
673 |
jint Klass::jvmti_class_status() const { |
|
674 |
return 0; |
|
675 |
} |
|
676 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
677 |
|
1 | 678 |
// Printing |
679 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
680 |
void Klass::print_on(outputStream* st) const { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
681 |
ResourceMark rm; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
682 |
// print title |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
683 |
st->print("%s", internal_name()); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
684 |
print_address_on(st); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
685 |
st->cr(); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
686 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
687 |
|
1 | 688 |
void Klass::oop_print_on(oop obj, outputStream* st) { |
689 |
ResourceMark rm; |
|
690 |
// print title |
|
691 |
st->print_cr("%s ", internal_name()); |
|
692 |
obj->print_address_on(st); |
|
693 |
||
694 |
if (WizardMode) { |
|
695 |
// print header |
|
696 |
obj->mark()->print_on(st); |
|
697 |
} |
|
698 |
||
699 |
// print class |
|
700 |
st->print(" - klass: "); |
|
701 |
obj->klass()->print_value_on(st); |
|
702 |
st->cr(); |
|
703 |
} |
|
704 |
||
705 |
void Klass::oop_print_value_on(oop obj, outputStream* st) { |
|
706 |
// print title |
|
707 |
ResourceMark rm; // Cannot print in debug mode without this |
|
708 |
st->print("%s", internal_name()); |
|
709 |
obj->print_address_on(st); |
|
710 |
} |
|
711 |
||
15437 | 712 |
#if INCLUDE_SERVICES |
713 |
// Size Statistics |
|
714 |
void Klass::collect_statistics(KlassSizeStats *sz) const { |
|
715 |
sz->_klass_bytes = sz->count(this); |
|
716 |
sz->_mirror_bytes = sz->count(java_mirror()); |
|
717 |
sz->_secondary_supers_bytes = sz->count_array(secondary_supers()); |
|
718 |
||
719 |
sz->_ro_bytes += sz->_secondary_supers_bytes; |
|
720 |
sz->_rw_bytes += sz->_klass_bytes + sz->_mirror_bytes; |
|
721 |
} |
|
722 |
#endif // INCLUDE_SERVICES |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
723 |
|
1 | 724 |
// Verification |
725 |
||
22794
f1c014ad3754
8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents:
22201
diff
changeset
|
726 |
void Klass::verify_on(outputStream* st) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
727 |
|
18439 | 728 |
// This can be expensive, but it is worth checking that this klass is actually |
729 |
// in the CLD graph but not in production. |
|
24457
0e20b36df5c4
8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents:
24351
diff
changeset
|
730 |
assert(Metaspace::contains((address)this), "Should be"); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
731 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
732 |
guarantee(this->is_klass(),"should be klass"); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
733 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
734 |
if (super() != NULL) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
735 |
guarantee(super()->is_klass(), "should be klass"); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
736 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
737 |
if (secondary_super_cache() != NULL) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
738 |
Klass* ko = secondary_super_cache(); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
739 |
guarantee(ko->is_klass(), "should be klass"); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
740 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
741 |
for ( uint i = 0; i < primary_super_limit(); i++ ) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
742 |
Klass* ko = _primary_supers[i]; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
743 |
if (ko != NULL) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
744 |
guarantee(ko->is_klass(), "should be klass"); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
745 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
746 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
747 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
748 |
if (java_mirror() != NULL) { |
46968
9119841280f4
8160399: is_oop_or_null involves undefined behavior
coleenp
parents:
46773
diff
changeset
|
749 |
guarantee(oopDesc::is_oop(java_mirror()), "should be instance"); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
750 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
751 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12379
diff
changeset
|
752 |
|
1 | 753 |
void Klass::oop_verify_on(oop obj, outputStream* st) { |
46968
9119841280f4
8160399: is_oop_or_null involves undefined behavior
coleenp
parents:
46773
diff
changeset
|
754 |
guarantee(oopDesc::is_oop(obj), "should be oop"); |
1 | 755 |
guarantee(obj->klass()->is_klass(), "klass field is not a klass"); |
756 |
} |
|
757 |
||
52014
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
758 |
Klass* Klass::decode_klass_raw(narrowKlass narrow_klass) { |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
759 |
return (Klass*)(void*)( (uintptr_t)Universe::narrow_klass_base() + |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
760 |
((uintptr_t)narrow_klass << Universe::narrow_klass_shift())); |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
761 |
} |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
762 |
|
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
763 |
bool Klass::is_valid(Klass* k) { |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
764 |
if (!is_aligned(k, sizeof(MetaWord))) return false; |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
765 |
if ((size_t)k < os::min_page_size()) return false; |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
766 |
|
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
767 |
if (!os::is_readable_range(k, k + 1)) return false; |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
768 |
if (!MetaspaceUtils::is_range_in_committed(k, k + 1)) return false; |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
769 |
|
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
770 |
if (!Symbol::is_valid(k->name())) return false; |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
771 |
return ClassLoaderDataGraph::is_valid(k->class_loader_data()); |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
772 |
} |
1aa9beac610e
8210754: print_location is not reliable enough (printing register info)
mdoerr
parents:
51491
diff
changeset
|
773 |
|
46408
70aab0c2ea8b
8178350: klassVtable and klassItable should be ValueObj
iklam
parents:
46388
diff
changeset
|
774 |
klassVtable Klass::vtable() const { |
70aab0c2ea8b
8178350: klassVtable and klassItable should be ValueObj
iklam
parents:
46388
diff
changeset
|
775 |
return klassVtable(const_cast<Klass*>(this), start_of_vtable(), vtable_length() / vtableEntry::size()); |
35900 | 776 |
} |
777 |
||
778 |
vtableEntry* Klass::start_of_vtable() const { |
|
779 |
return (vtableEntry*) ((address)this + in_bytes(vtable_start_offset())); |
|
780 |
} |
|
781 |
||
782 |
Method* Klass::method_at_vtable(int index) { |
|
783 |
#ifndef PRODUCT |
|
784 |
assert(index >= 0, "valid vtable index"); |
|
785 |
if (DebugVtables) { |
|
786 |
verify_vtable_index(index); |
|
787 |
} |
|
788 |
#endif |
|
789 |
return start_of_vtable()[index].method(); |
|
790 |
} |
|
791 |
||
35899 | 792 |
ByteSize Klass::vtable_start_offset() { |
793 |
return in_ByteSize(InstanceKlass::header_size() * wordSize); |
|
794 |
} |
|
795 |
||
1 | 796 |
#ifndef PRODUCT |
797 |
||
20017
81eba62e9048
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
19696
diff
changeset
|
798 |
bool Klass::verify_vtable_index(int i) { |
33602 | 799 |
int limit = vtable_length()/vtableEntry::size(); |
800 |
assert(i >= 0 && i < limit, "index %d out of bounds %d", i, limit); |
|
20017
81eba62e9048
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
19696
diff
changeset
|
801 |
return true; |
81eba62e9048
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
19696
diff
changeset
|
802 |
} |
81eba62e9048
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
19696
diff
changeset
|
803 |
|
49056
91ada5977172
8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
coleenp
parents:
47580
diff
changeset
|
804 |
#endif // PRODUCT |
91ada5977172
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changeset
|
805 |
|
50761
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diff
changeset
|
806 |
// Caller needs ResourceMark |
cb07f4b539fc
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changeset
|
807 |
// joint_in_module_of_loader provides an optimization if 2 classes are in |
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|
808 |
// the same module to succinctly print out relevant information about their |
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diff
changeset
|
809 |
// module name and class loader's name_and_id for error messages. |
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changeset
|
810 |
// Format: |
cb07f4b539fc
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diff
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|
811 |
// <fully-qualified-external-class-name1> and <fully-qualified-external-class-name2> |
cb07f4b539fc
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diff
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|
812 |
// are in module <module-name>[@<version>] |
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changeset
|
813 |
// of loader <loader-name_and_id>[, parent loader <parent-loader-name_and_id>] |
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|
814 |
const char* Klass::joint_in_module_of_loader(const Klass* class2, bool include_parent_loader) const { |
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|
815 |
assert(module() == class2->module(), "classes do not have the same module"); |
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changeset
|
816 |
const char* class1_name = external_name(); |
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|
817 |
size_t len = strlen(class1_name) + 1; |
49056
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changeset
|
818 |
|
50761
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|
819 |
const char* class2_description = class2->class_in_module_of_loader(true, include_parent_loader); |
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changeset
|
820 |
len += strlen(class2_description); |
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parents:
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diff
changeset
|
821 |
|
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parents:
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diff
changeset
|
822 |
len += strlen(" and "); |
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parents:
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diff
changeset
|
823 |
|
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|
824 |
char* joint_description = NEW_RESOURCE_ARRAY_RETURN_NULL(char, len); |
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changeset
|
825 |
|
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diff
changeset
|
826 |
// Just return the FQN if error when allocating string |
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parents:
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diff
changeset
|
827 |
if (joint_description == NULL) { |
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diff
changeset
|
828 |
return class1_name; |
49056
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changeset
|
829 |
} |
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diff
changeset
|
830 |
|
50761
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diff
changeset
|
831 |
jio_snprintf(joint_description, len, "%s and %s", |
cb07f4b539fc
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parents:
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diff
changeset
|
832 |
class1_name, |
cb07f4b539fc
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parents:
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diff
changeset
|
833 |
class2_description); |
cb07f4b539fc
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parents:
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diff
changeset
|
834 |
|
cb07f4b539fc
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parents:
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diff
changeset
|
835 |
return joint_description; |
cb07f4b539fc
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parents:
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diff
changeset
|
836 |
} |
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parents:
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diff
changeset
|
837 |
|
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diff
changeset
|
838 |
// Caller needs ResourceMark |
cb07f4b539fc
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diff
changeset
|
839 |
// class_in_module_of_loader provides a standard way to include |
cb07f4b539fc
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parents:
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diff
changeset
|
840 |
// relevant information about a class, such as its module name as |
cb07f4b539fc
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diff
changeset
|
841 |
// well as its class loader's name_and_id, in error messages and logging. |
cb07f4b539fc
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parents:
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diff
changeset
|
842 |
// Format: |
cb07f4b539fc
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parents:
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diff
changeset
|
843 |
// <fully-qualified-external-class-name> is in module <module-name>[@<version>] |
cb07f4b539fc
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diff
changeset
|
844 |
// of loader <loader-name_and_id>[, parent loader <parent-loader-name_and_id>] |
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diff
changeset
|
845 |
const char* Klass::class_in_module_of_loader(bool use_are, bool include_parent_loader) const { |
cb07f4b539fc
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parents:
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diff
changeset
|
846 |
// 1. fully qualified external name of class |
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parents:
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diff
changeset
|
847 |
const char* klass_name = external_name(); |
cb07f4b539fc
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diff
changeset
|
848 |
size_t len = strlen(klass_name) + 1; |
cb07f4b539fc
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diff
changeset
|
849 |
|
cb07f4b539fc
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diff
changeset
|
850 |
// 2. module name + @version |
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diff
changeset
|
851 |
const char* module_name = ""; |
91ada5977172
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diff
changeset
|
852 |
const char* version = ""; |
50761
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diff
changeset
|
853 |
bool has_version = false; |
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parents:
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diff
changeset
|
854 |
bool module_is_named = false; |
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diff
changeset
|
855 |
const char* module_name_phrase = ""; |
49056
91ada5977172
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parents:
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changeset
|
856 |
const Klass* bottom_klass = is_objArray_klass() ? |
50761
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diff
changeset
|
857 |
ObjArrayKlass::cast(this)->bottom_klass() : this; |
49056
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coleenp
parents:
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diff
changeset
|
858 |
if (bottom_klass->is_instance_klass()) { |
91ada5977172
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diff
changeset
|
859 |
ModuleEntry* module = InstanceKlass::cast(bottom_klass)->module(); |
91ada5977172
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diff
changeset
|
860 |
if (module->is_named()) { |
50761
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parents:
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|
861 |
module_is_named = true; |
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changeset
|
862 |
module_name_phrase = "module "; |
49056
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changeset
|
863 |
module_name = module->name()->as_C_string(); |
50761
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diff
changeset
|
864 |
len += strlen(module_name); |
49056
91ada5977172
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parents:
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diff
changeset
|
865 |
// Use version if exists and is not a jdk module |
50569
60d66a249db6
8204620: ModuleEntry::is_non_jdk_module() determination for what is a jdk module is incorrect
hseigel
parents:
50532
diff
changeset
|
866 |
if (module->should_show_version()) { |
49056
91ada5977172
8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
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changeset
|
867 |
has_version = true; |
91ada5977172
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diff
changeset
|
868 |
version = module->version()->as_C_string(); |
50761
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diff
changeset
|
869 |
// Include stlen(version) + 1 for the "@" |
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parents:
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diff
changeset
|
870 |
len += strlen(version) + 1; |
49056
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diff
changeset
|
871 |
} |
50761
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parents:
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diff
changeset
|
872 |
} else { |
cb07f4b539fc
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parents:
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diff
changeset
|
873 |
module_name = UNNAMED_MODULE; |
cb07f4b539fc
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parents:
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diff
changeset
|
874 |
len += UNNAMED_MODULE_LEN; |
49056
91ada5977172
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parents:
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diff
changeset
|
875 |
} |
91ada5977172
8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
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parents:
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diff
changeset
|
876 |
} else { |
50761
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diff
changeset
|
877 |
// klass is an array of primitives, module is java.base |
cb07f4b539fc
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parents:
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diff
changeset
|
878 |
module_is_named = true; |
cb07f4b539fc
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parents:
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diff
changeset
|
879 |
module_name_phrase = "module "; |
49056
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parents:
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diff
changeset
|
880 |
module_name = JAVA_BASE_NAME; |
50761
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diff
changeset
|
881 |
len += JAVA_BASE_NAME_LEN; |
49056
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parents:
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diff
changeset
|
882 |
} |
91ada5977172
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coleenp
parents:
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diff
changeset
|
883 |
|
50761
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parents:
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diff
changeset
|
884 |
// 3. class loader's name_and_id |
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parents:
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diff
changeset
|
885 |
ClassLoaderData* cld = class_loader_data(); |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
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parents:
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diff
changeset
|
886 |
assert(cld != NULL, "class_loader_data should not be null"); |
cb07f4b539fc
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parents:
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diff
changeset
|
887 |
const char* loader_name_and_id = cld->loader_name_and_id(); |
cb07f4b539fc
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parents:
50752
diff
changeset
|
888 |
len += strlen(loader_name_and_id); |
49056
91ada5977172
8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
coleenp
parents:
47580
diff
changeset
|
889 |
|
50761
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parents:
50752
diff
changeset
|
890 |
// 4. include parent loader information |
cb07f4b539fc
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parents:
50752
diff
changeset
|
891 |
const char* parent_loader_phrase = ""; |
cb07f4b539fc
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parents:
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diff
changeset
|
892 |
const char* parent_loader_name_and_id = ""; |
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8169559: Add class loader names to relevant VM messages
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parents:
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diff
changeset
|
893 |
if (include_parent_loader && |
cb07f4b539fc
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parents:
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diff
changeset
|
894 |
!cld->is_builtin_class_loader_data()) { |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
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parents:
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diff
changeset
|
895 |
oop parent_loader = java_lang_ClassLoader::parent(class_loader()); |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
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diff
changeset
|
896 |
ClassLoaderData *parent_cld = ClassLoaderData::class_loader_data(parent_loader); |
cb07f4b539fc
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parents:
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diff
changeset
|
897 |
assert(parent_cld != NULL, "parent's class loader data should not be null"); |
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parents:
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diff
changeset
|
898 |
parent_loader_name_and_id = parent_cld->loader_name_and_id(); |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
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parents:
50752
diff
changeset
|
899 |
parent_loader_phrase = ", parent loader "; |
cb07f4b539fc
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parents:
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diff
changeset
|
900 |
len += strlen(parent_loader_phrase) + strlen(parent_loader_name_and_id); |
49056
91ada5977172
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coleenp
parents:
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diff
changeset
|
901 |
} |
91ada5977172
8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
coleenp
parents:
47580
diff
changeset
|
902 |
|
50761
cb07f4b539fc
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parents:
50752
diff
changeset
|
903 |
// Start to construct final full class description string |
cb07f4b539fc
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parents:
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diff
changeset
|
904 |
len += ((use_are) ? strlen(" are in ") : strlen(" is in ")); |
cb07f4b539fc
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parents:
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diff
changeset
|
905 |
len += strlen(module_name_phrase) + strlen(" of loader "); |
cb07f4b539fc
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lfoltan
parents:
50752
diff
changeset
|
906 |
|
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
lfoltan
parents:
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diff
changeset
|
907 |
char* class_description = NEW_RESOURCE_ARRAY_RETURN_NULL(char, len); |
cb07f4b539fc
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parents:
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diff
changeset
|
908 |
|
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
lfoltan
parents:
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diff
changeset
|
909 |
// Just return the FQN if error when allocating string |
cb07f4b539fc
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lfoltan
parents:
50752
diff
changeset
|
910 |
if (class_description == NULL) { |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
lfoltan
parents:
50752
diff
changeset
|
911 |
return klass_name; |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
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parents:
50752
diff
changeset
|
912 |
} |
cb07f4b539fc
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parents:
50752
diff
changeset
|
913 |
|
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
lfoltan
parents:
50752
diff
changeset
|
914 |
jio_snprintf(class_description, len, "%s %s in %s%s%s%s of loader %s%s%s", |
cb07f4b539fc
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lfoltan
parents:
50752
diff
changeset
|
915 |
klass_name, |
cb07f4b539fc
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parents:
50752
diff
changeset
|
916 |
(use_are) ? "are" : "is", |
cb07f4b539fc
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lfoltan
parents:
50752
diff
changeset
|
917 |
module_name_phrase, |
cb07f4b539fc
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parents:
50752
diff
changeset
|
918 |
module_name, |
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coleenp
parents:
47580
diff
changeset
|
919 |
(has_version) ? "@" : "", |
91ada5977172
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coleenp
parents:
47580
diff
changeset
|
920 |
(has_version) ? version : "", |
50761
cb07f4b539fc
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parents:
50752
diff
changeset
|
921 |
loader_name_and_id, |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
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parents:
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diff
changeset
|
922 |
parent_loader_phrase, |
cb07f4b539fc
8169559: Add class loader names to relevant VM messages
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parents:
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diff
changeset
|
923 |
parent_loader_name_and_id); |
cb07f4b539fc
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parents:
50752
diff
changeset
|
924 |
|
cb07f4b539fc
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diff
changeset
|
925 |
return class_description; |
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8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
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} |