8006fe8f75
Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
1129 lines
53 KiB
C++
1129 lines
53 KiB
C++
/*
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* Copyright (c) 1997, 2010, 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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#include "precompiled.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "compiler/compileBroker.hpp"
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#include "gc_interface/collectedHeap.inline.hpp"
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#include "interpreter/bytecode.hpp"
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#include "interpreter/interpreterRuntime.hpp"
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#include "interpreter/linkResolver.hpp"
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#include "memory/resourceArea.hpp"
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#include "memory/universe.inline.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/objArrayOop.hpp"
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#include "prims/methodHandles.hpp"
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#include "prims/nativeLookup.hpp"
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#include "runtime/compilationPolicy.hpp"
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#include "runtime/fieldDescriptor.hpp"
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#include "runtime/frame.inline.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/reflection.hpp"
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#include "runtime/signature.hpp"
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#include "runtime/vmThread.hpp"
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#ifdef TARGET_OS_FAMILY_linux
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# include "thread_linux.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_solaris
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# include "thread_solaris.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_windows
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# include "thread_windows.inline.hpp"
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#endif
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//------------------------------------------------------------------------------------------------------------------------
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// Implementation of FieldAccessInfo
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void FieldAccessInfo::set(KlassHandle klass, symbolHandle name, int field_index, int field_offset,
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BasicType field_type, AccessFlags access_flags) {
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_klass = klass;
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_name = name;
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_field_index = field_index;
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_field_offset = field_offset;
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_field_type = field_type;
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_access_flags = access_flags;
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}
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//------------------------------------------------------------------------------------------------------------------------
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// Implementation of CallInfo
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void CallInfo::set_static(KlassHandle resolved_klass, methodHandle resolved_method, TRAPS) {
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int vtable_index = methodOopDesc::nonvirtual_vtable_index;
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set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, vtable_index, CHECK);
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}
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void CallInfo::set_interface(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, TRAPS) {
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// This is only called for interface methods. If the resolved_method
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// comes from java/lang/Object, it can be the subject of a virtual call, so
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// we should pick the vtable index from the resolved method.
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// Other than that case, there is no valid vtable index to specify.
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int vtable_index = methodOopDesc::invalid_vtable_index;
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if (resolved_method->method_holder() == SystemDictionary::Object_klass()) {
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assert(resolved_method->vtable_index() == selected_method->vtable_index(), "sanity check");
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vtable_index = resolved_method->vtable_index();
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}
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set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK);
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}
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void CallInfo::set_virtual(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) {
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assert(vtable_index >= 0 || vtable_index == methodOopDesc::nonvirtual_vtable_index, "valid index");
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set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK);
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}
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void CallInfo::set_dynamic(methodHandle resolved_method, TRAPS) {
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assert(resolved_method->is_method_handle_invoke(), "");
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KlassHandle resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
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assert(resolved_klass == resolved_method->method_holder(), "");
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int vtable_index = methodOopDesc::nonvirtual_vtable_index;
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assert(resolved_method->vtable_index() == vtable_index, "");
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set_common(resolved_klass, KlassHandle(), resolved_method, resolved_method, vtable_index, CHECK);
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}
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void CallInfo::set_common(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) {
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assert(resolved_method->signature() == selected_method->signature(), "signatures must correspond");
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_resolved_klass = resolved_klass;
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_selected_klass = selected_klass;
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_resolved_method = resolved_method;
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_selected_method = selected_method;
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_vtable_index = vtable_index;
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if (CompilationPolicy::must_be_compiled(selected_method)) {
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// This path is unusual, mostly used by the '-Xcomp' stress test mode.
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// Note: with several active threads, the must_be_compiled may be true
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// while can_be_compiled is false; remove assert
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// assert(CompilationPolicy::can_be_compiled(selected_method), "cannot compile");
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if (THREAD->is_Compiler_thread()) {
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// don't force compilation, resolve was on behalf of compiler
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return;
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}
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if (instanceKlass::cast(selected_method->method_holder())->is_not_initialized()) {
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// 'is_not_initialized' means not only '!is_initialized', but also that
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// initialization has not been started yet ('!being_initialized')
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// Do not force compilation of methods in uninitialized classes.
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// Note that doing this would throw an assert later,
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// in CompileBroker::compile_method.
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// We sometimes use the link resolver to do reflective lookups
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// even before classes are initialized.
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return;
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}
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CompileBroker::compile_method(selected_method, InvocationEntryBci,
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CompLevel_initial_compile,
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methodHandle(), 0, "must_be_compiled", CHECK);
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}
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}
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//------------------------------------------------------------------------------------------------------------------------
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// Klass resolution
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void LinkResolver::check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS) {
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if (!Reflection::verify_class_access(ref_klass->as_klassOop(),
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sel_klass->as_klassOop(),
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true)) {
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ResourceMark rm(THREAD);
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Exceptions::fthrow(
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THREAD_AND_LOCATION,
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vmSymbolHandles::java_lang_IllegalAccessError(),
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"tried to access class %s from class %s",
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sel_klass->external_name(),
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ref_klass->external_name()
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);
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return;
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}
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}
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void LinkResolver::resolve_klass(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) {
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klassOop result_oop = pool->klass_ref_at(index, CHECK);
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result = KlassHandle(THREAD, result_oop);
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}
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void LinkResolver::resolve_klass_no_update(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) {
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klassOop result_oop =
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constantPoolOopDesc::klass_ref_at_if_loaded_check(pool, index, CHECK);
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result = KlassHandle(THREAD, result_oop);
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}
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//------------------------------------------------------------------------------------------------------------------------
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// Method resolution
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//
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// According to JVM spec. $5.4.3c & $5.4.3d
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void LinkResolver::lookup_method_in_klasses(methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
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methodOop result_oop = klass->uncached_lookup_method(name(), signature());
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if (EnableMethodHandles && result_oop != NULL) {
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switch (result_oop->intrinsic_id()) {
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case vmIntrinsics::_invokeExact:
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case vmIntrinsics::_invokeGeneric:
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case vmIntrinsics::_invokeDynamic:
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// Do not link directly to these. The VM must produce a synthetic one using lookup_implicit_method.
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return;
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}
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}
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result = methodHandle(THREAD, result_oop);
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}
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// returns first instance method
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void LinkResolver::lookup_instance_method_in_klasses(methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
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methodOop result_oop = klass->uncached_lookup_method(name(), signature());
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result = methodHandle(THREAD, result_oop);
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while (!result.is_null() && result->is_static()) {
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klass = KlassHandle(THREAD, Klass::cast(result->method_holder())->super());
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result = methodHandle(THREAD, klass->uncached_lookup_method(name(), signature()));
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}
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}
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int LinkResolver::vtable_index_of_miranda_method(KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
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ResourceMark rm(THREAD);
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klassVtable *vt = instanceKlass::cast(klass())->vtable();
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return vt->index_of_miranda(name(), signature());
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}
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void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
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instanceKlass *ik = instanceKlass::cast(klass());
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result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name(), signature()));
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}
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void LinkResolver::lookup_implicit_method(methodHandle& result,
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KlassHandle klass, symbolHandle name, symbolHandle signature,
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KlassHandle current_klass,
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TRAPS) {
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if (EnableMethodHandles &&
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klass() == SystemDictionary::MethodHandle_klass() &&
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methodOopDesc::is_method_handle_invoke_name(name())) {
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if (!MethodHandles::enabled()) {
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// Make sure the Java part of the runtime has been booted up.
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klassOop natives = SystemDictionary::MethodHandleNatives_klass();
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if (natives == NULL || instanceKlass::cast(natives)->is_not_initialized()) {
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SystemDictionary::resolve_or_fail(vmSymbolHandles::sun_dyn_MethodHandleNatives(),
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Handle(),
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Handle(),
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true,
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CHECK);
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}
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}
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methodOop result_oop = SystemDictionary::find_method_handle_invoke(name,
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signature,
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current_klass,
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CHECK);
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if (result_oop != NULL) {
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assert(result_oop->is_method_handle_invoke() && result_oop->signature() == signature(), "consistent");
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result = methodHandle(THREAD, result_oop);
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}
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}
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}
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void LinkResolver::check_method_accessability(KlassHandle ref_klass,
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KlassHandle resolved_klass,
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KlassHandle sel_klass,
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methodHandle sel_method,
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TRAPS) {
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AccessFlags flags = sel_method->access_flags();
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// Special case: arrays always override "clone". JVMS 2.15.
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// If the resolved klass is an array class, and the declaring class
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// is java.lang.Object and the method is "clone", set the flags
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// to public.
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//
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// We'll check for the method name first, as that's most likely
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// to be false (so we'll short-circuit out of these tests).
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if (sel_method->name() == vmSymbols::clone_name() &&
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sel_klass() == SystemDictionary::Object_klass() &&
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resolved_klass->oop_is_array()) {
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// We need to change "protected" to "public".
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assert(flags.is_protected(), "clone not protected?");
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jint new_flags = flags.as_int();
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new_flags = new_flags & (~JVM_ACC_PROTECTED);
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new_flags = new_flags | JVM_ACC_PUBLIC;
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flags.set_flags(new_flags);
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}
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if (!Reflection::verify_field_access(ref_klass->as_klassOop(),
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resolved_klass->as_klassOop(),
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sel_klass->as_klassOop(),
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flags,
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true)) {
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ResourceMark rm(THREAD);
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Exceptions::fthrow(
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THREAD_AND_LOCATION,
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vmSymbolHandles::java_lang_IllegalAccessError(),
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"tried to access method %s.%s%s from class %s",
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sel_klass->external_name(),
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sel_method->name()->as_C_string(),
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sel_method->signature()->as_C_string(),
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ref_klass->external_name()
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);
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return;
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}
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}
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void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle& resolved_klass,
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constantPoolHandle pool, int index, TRAPS) {
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// resolve klass
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resolve_klass(resolved_klass, pool, index, CHECK);
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symbolHandle method_name (THREAD, pool->name_ref_at(index));
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symbolHandle method_signature (THREAD, pool->signature_ref_at(index));
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KlassHandle current_klass(THREAD, pool->pool_holder());
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resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
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}
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void LinkResolver::resolve_dynamic_method(methodHandle& resolved_method, KlassHandle& resolved_klass, constantPoolHandle pool, int index, TRAPS) {
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// The class is java.dyn.MethodHandle
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resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
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symbolHandle method_name = vmSymbolHandles::invokeExact_name();
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symbolHandle method_signature(THREAD, pool->signature_ref_at(index));
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KlassHandle current_klass (THREAD, pool->pool_holder());
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resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
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}
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void LinkResolver::resolve_interface_method(methodHandle& resolved_method, KlassHandle& resolved_klass, constantPoolHandle pool, int index, TRAPS) {
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// resolve klass
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resolve_klass(resolved_klass, pool, index, CHECK);
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symbolHandle method_name (THREAD, pool->name_ref_at(index));
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symbolHandle method_signature (THREAD, pool->signature_ref_at(index));
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KlassHandle current_klass(THREAD, pool->pool_holder());
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resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
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}
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void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle resolved_klass,
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symbolHandle method_name, symbolHandle method_signature,
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KlassHandle current_klass, bool check_access, TRAPS) {
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// 1. check if klass is not interface
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if (resolved_klass->is_interface()) {
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char buf[200];
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jio_snprintf(buf, sizeof(buf), "Found interface %s, but class was expected", Klass::cast(resolved_klass())->external_name());
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THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
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}
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// 2. lookup method in resolved klass and its super klasses
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lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK);
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if (resolved_method.is_null()) { // not found in the class hierarchy
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// 3. lookup method in all the interfaces implemented by the resolved klass
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lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK);
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if (resolved_method.is_null()) {
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// JSR 292: see if this is an implicitly generated method MethodHandle.invoke(*...)
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lookup_implicit_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, CHECK);
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}
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if (resolved_method.is_null()) {
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// 4. method lookup failed
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ResourceMark rm(THREAD);
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THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(),
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methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
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method_name(),
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method_signature()));
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}
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}
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// 5. check if method is concrete
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if (resolved_method->is_abstract() && !resolved_klass->is_abstract()) {
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ResourceMark rm(THREAD);
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THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
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methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
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method_name(),
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method_signature()));
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}
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// 6. access checks, access checking may be turned off when calling from within the VM.
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if (check_access) {
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assert(current_klass.not_null() , "current_klass should not be null");
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// check if method can be accessed by the referring class
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check_method_accessability(current_klass,
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resolved_klass,
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KlassHandle(THREAD, resolved_method->method_holder()),
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resolved_method,
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CHECK);
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// check loader constraints
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Handle loader (THREAD, instanceKlass::cast(current_klass())->class_loader());
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Handle class_loader (THREAD, instanceKlass::cast(resolved_method->method_holder())->class_loader());
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{
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ResourceMark rm(THREAD);
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char* failed_type_name =
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SystemDictionary::check_signature_loaders(method_signature, loader,
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class_loader, true, CHECK);
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if (failed_type_name != NULL) {
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const char* msg = "loader constraint violation: when resolving method"
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" \"%s\" the class loader (instance of %s) of the current class, %s,"
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" and the class loader (instance of %s) for resolved class, %s, have"
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" different Class objects for the type %s used in the signature";
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char* sig = methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),method_name(),method_signature());
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const char* loader1 = SystemDictionary::loader_name(loader());
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char* current = instanceKlass::cast(current_klass())->name()->as_C_string();
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const char* loader2 = SystemDictionary::loader_name(class_loader());
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char* resolved = instanceKlass::cast(resolved_klass())->name()->as_C_string();
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size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) +
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strlen(current) + strlen(loader2) + strlen(resolved) +
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strlen(failed_type_name);
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char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
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jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2,
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resolved, failed_type_name);
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THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
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}
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}
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}
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}
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void LinkResolver::resolve_interface_method(methodHandle& resolved_method,
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KlassHandle resolved_klass,
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symbolHandle method_name,
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symbolHandle method_signature,
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KlassHandle current_klass,
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bool check_access, TRAPS) {
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// check if klass is interface
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if (!resolved_klass->is_interface()) {
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char buf[200];
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jio_snprintf(buf, sizeof(buf), "Found class %s, but interface was expected", Klass::cast(resolved_klass())->external_name());
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THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
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}
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// lookup method in this interface or its super, java.lang.Object
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lookup_instance_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK);
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if (resolved_method.is_null()) {
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// lookup method in all the super-interfaces
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lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK);
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if (resolved_method.is_null()) {
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// no method found
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ResourceMark rm(THREAD);
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THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(),
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methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
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method_name(),
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method_signature()));
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}
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}
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if (check_access) {
|
|
HandleMark hm(THREAD);
|
|
Handle loader (THREAD, instanceKlass::cast(current_klass())->class_loader());
|
|
Handle class_loader (THREAD, instanceKlass::cast(resolved_method->method_holder())->class_loader());
|
|
{
|
|
ResourceMark rm(THREAD);
|
|
char* failed_type_name =
|
|
SystemDictionary::check_signature_loaders(method_signature, loader,
|
|
class_loader, true, CHECK);
|
|
if (failed_type_name != NULL) {
|
|
const char* msg = "loader constraint violation: when resolving "
|
|
"interface method \"%s\" the class loader (instance of %s) of the "
|
|
"current class, %s, and the class loader (instance of %s) for "
|
|
"resolved class, %s, have different Class objects for the type %s "
|
|
"used in the signature";
|
|
char* sig = methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),method_name(),method_signature());
|
|
const char* loader1 = SystemDictionary::loader_name(loader());
|
|
char* current = instanceKlass::cast(current_klass())->name()->as_C_string();
|
|
const char* loader2 = SystemDictionary::loader_name(class_loader());
|
|
char* resolved = instanceKlass::cast(resolved_klass())->name()->as_C_string();
|
|
size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) +
|
|
strlen(current) + strlen(loader2) + strlen(resolved) +
|
|
strlen(failed_type_name);
|
|
char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
|
|
jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2,
|
|
resolved, failed_type_name);
|
|
THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------------------------------
|
|
// Field resolution
|
|
|
|
void LinkResolver::check_field_accessability(KlassHandle ref_klass,
|
|
KlassHandle resolved_klass,
|
|
KlassHandle sel_klass,
|
|
fieldDescriptor& fd,
|
|
TRAPS) {
|
|
if (!Reflection::verify_field_access(ref_klass->as_klassOop(),
|
|
resolved_klass->as_klassOop(),
|
|
sel_klass->as_klassOop(),
|
|
fd.access_flags(),
|
|
true)) {
|
|
ResourceMark rm(THREAD);
|
|
Exceptions::fthrow(
|
|
THREAD_AND_LOCATION,
|
|
vmSymbolHandles::java_lang_IllegalAccessError(),
|
|
"tried to access field %s.%s from class %s",
|
|
sel_klass->external_name(),
|
|
fd.name()->as_C_string(),
|
|
ref_klass->external_name()
|
|
);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, TRAPS) {
|
|
resolve_field(result, pool, index, byte, check_only, true, CHECK);
|
|
}
|
|
|
|
void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, bool update_pool, TRAPS) {
|
|
assert(byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic ||
|
|
byte == Bytecodes::_getfield || byte == Bytecodes::_putfield, "bad bytecode");
|
|
|
|
bool is_static = (byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic);
|
|
bool is_put = (byte == Bytecodes::_putfield || byte == Bytecodes::_putstatic);
|
|
|
|
// resolve specified klass
|
|
KlassHandle resolved_klass;
|
|
if (update_pool) {
|
|
resolve_klass(resolved_klass, pool, index, CHECK);
|
|
} else {
|
|
resolve_klass_no_update(resolved_klass, pool, index, CHECK);
|
|
}
|
|
// Load these early in case the resolve of the containing klass fails
|
|
symbolOop field = pool->name_ref_at(index);
|
|
symbolHandle field_h (THREAD, field); // preserve in case we need the name
|
|
symbolOop sig = pool->signature_ref_at(index);
|
|
// Check if there's a resolved klass containing the field
|
|
if( resolved_klass.is_null() ) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string());
|
|
}
|
|
|
|
// Resolve instance field
|
|
fieldDescriptor fd; // find_field initializes fd if found
|
|
KlassHandle sel_klass(THREAD, instanceKlass::cast(resolved_klass())->find_field(field, sig, &fd));
|
|
// check if field exists; i.e., if a klass containing the field def has been selected
|
|
if (sel_klass.is_null()){
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string());
|
|
}
|
|
|
|
// check access
|
|
KlassHandle ref_klass(THREAD, pool->pool_holder());
|
|
check_field_accessability(ref_klass, resolved_klass, sel_klass, fd, CHECK);
|
|
|
|
// check for errors
|
|
if (is_static != fd.is_static()) {
|
|
char msg[200];
|
|
jio_snprintf(msg, sizeof(msg), "Expected %s field %s.%s", is_static ? "static" : "non-static", Klass::cast(resolved_klass())->external_name(), fd.name()->as_C_string());
|
|
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), msg);
|
|
}
|
|
|
|
// Final fields can only be accessed from its own class.
|
|
if (is_put && fd.access_flags().is_final() && sel_klass() != pool->pool_holder()) {
|
|
THROW(vmSymbols::java_lang_IllegalAccessError());
|
|
}
|
|
|
|
// initialize resolved_klass if necessary
|
|
// note 1: the klass which declared the field must be initialized (i.e, sel_klass)
|
|
// according to the newest JVM spec (5.5, p.170) - was bug (gri 7/28/99)
|
|
//
|
|
// note 2: we don't want to force initialization if we are just checking
|
|
// if the field access is legal; e.g., during compilation
|
|
if (is_static && !check_only) {
|
|
sel_klass->initialize(CHECK);
|
|
}
|
|
|
|
{
|
|
HandleMark hm(THREAD);
|
|
Handle ref_loader (THREAD, instanceKlass::cast(ref_klass())->class_loader());
|
|
Handle sel_loader (THREAD, instanceKlass::cast(sel_klass())->class_loader());
|
|
symbolHandle signature_ref (THREAD, pool->signature_ref_at(index));
|
|
{
|
|
ResourceMark rm(THREAD);
|
|
char* failed_type_name =
|
|
SystemDictionary::check_signature_loaders(signature_ref,
|
|
ref_loader, sel_loader,
|
|
false,
|
|
CHECK);
|
|
if (failed_type_name != NULL) {
|
|
const char* msg = "loader constraint violation: when resolving field"
|
|
" \"%s\" the class loader (instance of %s) of the referring class, "
|
|
"%s, and the class loader (instance of %s) for the field's resolved "
|
|
"type, %s, have different Class objects for that type";
|
|
char* field_name = field_h()->as_C_string();
|
|
const char* loader1 = SystemDictionary::loader_name(ref_loader());
|
|
char* sel = instanceKlass::cast(sel_klass())->name()->as_C_string();
|
|
const char* loader2 = SystemDictionary::loader_name(sel_loader());
|
|
size_t buflen = strlen(msg) + strlen(field_name) + strlen(loader1) +
|
|
strlen(sel) + strlen(loader2) + strlen(failed_type_name);
|
|
char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
|
|
jio_snprintf(buf, buflen, msg, field_name, loader1, sel, loader2,
|
|
failed_type_name);
|
|
THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
|
|
}
|
|
}
|
|
}
|
|
|
|
// return information. note that the klass is set to the actual klass containing the
|
|
// field, otherwise access of static fields in superclasses will not work.
|
|
KlassHandle holder (THREAD, fd.field_holder());
|
|
symbolHandle name (THREAD, fd.name());
|
|
result.set(holder, name, fd.index(), fd.offset(), fd.field_type(), fd.access_flags());
|
|
}
|
|
|
|
|
|
//------------------------------------------------------------------------------------------------------------------------
|
|
// Invoke resolution
|
|
//
|
|
// Naming conventions:
|
|
//
|
|
// resolved_method the specified method (i.e., static receiver specified via constant pool index)
|
|
// sel_method the selected method (selected via run-time lookup; e.g., based on dynamic receiver class)
|
|
// resolved_klass the specified klass (i.e., specified via constant pool index)
|
|
// recv_klass the receiver klass
|
|
|
|
|
|
void LinkResolver::resolve_static_call(CallInfo& result, KlassHandle& resolved_klass, symbolHandle method_name,
|
|
symbolHandle method_signature, KlassHandle current_klass,
|
|
bool check_access, bool initialize_class, TRAPS) {
|
|
methodHandle resolved_method;
|
|
linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
resolved_klass = KlassHandle(THREAD, Klass::cast(resolved_method->method_holder()));
|
|
|
|
// Initialize klass (this should only happen if everything is ok)
|
|
if (initialize_class && resolved_klass->should_be_initialized()) {
|
|
resolved_klass->initialize(CHECK);
|
|
linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
}
|
|
|
|
// setup result
|
|
result.set_static(resolved_klass, resolved_method, CHECK);
|
|
}
|
|
|
|
// throws linktime exceptions
|
|
void LinkResolver::linktime_resolve_static_method(methodHandle& resolved_method, KlassHandle resolved_klass,
|
|
symbolHandle method_name, symbolHandle method_signature,
|
|
KlassHandle current_klass, bool check_access, TRAPS) {
|
|
|
|
resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
assert(resolved_method->name() != vmSymbols::class_initializer_name(), "should have been checked in verifier");
|
|
|
|
// check if static
|
|
if (!resolved_method->is_static()) {
|
|
char buf[200];
|
|
jio_snprintf(buf, sizeof(buf), "Expected static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
resolved_method->name(),
|
|
resolved_method->signature()));
|
|
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
|
|
}
|
|
}
|
|
|
|
|
|
void LinkResolver::resolve_special_call(CallInfo& result, KlassHandle resolved_klass, symbolHandle method_name,
|
|
symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS) {
|
|
methodHandle resolved_method;
|
|
linktime_resolve_special_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
runtime_resolve_special_method(result, resolved_method, resolved_klass, current_klass, check_access, CHECK);
|
|
}
|
|
|
|
// throws linktime exceptions
|
|
void LinkResolver::linktime_resolve_special_method(methodHandle& resolved_method, KlassHandle resolved_klass,
|
|
symbolHandle method_name, symbolHandle method_signature,
|
|
KlassHandle current_klass, bool check_access, TRAPS) {
|
|
|
|
resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
|
|
// check if method name is <init>, that it is found in same klass as static type
|
|
if (resolved_method->name() == vmSymbols::object_initializer_name() &&
|
|
resolved_method->method_holder() != resolved_klass()) {
|
|
ResourceMark rm(THREAD);
|
|
Exceptions::fthrow(
|
|
THREAD_AND_LOCATION,
|
|
vmSymbolHandles::java_lang_NoSuchMethodError(),
|
|
"%s: method %s%s not found",
|
|
resolved_klass->external_name(),
|
|
resolved_method->name()->as_C_string(),
|
|
resolved_method->signature()->as_C_string()
|
|
);
|
|
return;
|
|
}
|
|
|
|
// check if not static
|
|
if (resolved_method->is_static()) {
|
|
char buf[200];
|
|
jio_snprintf(buf, sizeof(buf),
|
|
"Expecting non-static method %s",
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
resolved_method->name(),
|
|
resolved_method->signature()));
|
|
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
|
|
}
|
|
}
|
|
|
|
// throws runtime exceptions
|
|
void LinkResolver::runtime_resolve_special_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass,
|
|
KlassHandle current_klass, bool check_access, TRAPS) {
|
|
|
|
// resolved method is selected method unless we have an old-style lookup
|
|
methodHandle sel_method(THREAD, resolved_method());
|
|
|
|
// check if this is an old-style super call and do a new lookup if so
|
|
{ KlassHandle method_klass = KlassHandle(THREAD,
|
|
resolved_method->method_holder());
|
|
|
|
if (check_access &&
|
|
// a) check if ACC_SUPER flag is set for the current class
|
|
current_klass->is_super() &&
|
|
// b) check if the method class is a superclass of the current class (superclass relation is not reflexive!)
|
|
current_klass->is_subtype_of(method_klass()) && current_klass() != method_klass() &&
|
|
// c) check if the method is not <init>
|
|
resolved_method->name() != vmSymbols::object_initializer_name()) {
|
|
// Lookup super method
|
|
KlassHandle super_klass(THREAD, current_klass->super());
|
|
lookup_instance_method_in_klasses(sel_method, super_klass,
|
|
symbolHandle(THREAD, resolved_method->name()),
|
|
symbolHandle(THREAD, resolved_method->signature()), CHECK);
|
|
// check if found
|
|
if (sel_method.is_null()) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
resolved_method->name(),
|
|
resolved_method->signature()));
|
|
}
|
|
}
|
|
}
|
|
|
|
// check if not static
|
|
if (sel_method->is_static()) {
|
|
char buf[200];
|
|
jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
resolved_method->name(),
|
|
resolved_method->signature()));
|
|
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
|
|
}
|
|
|
|
// check if abstract
|
|
if (sel_method->is_abstract()) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
sel_method->name(),
|
|
sel_method->signature()));
|
|
}
|
|
|
|
// setup result
|
|
result.set_static(resolved_klass, sel_method, CHECK);
|
|
}
|
|
|
|
void LinkResolver::resolve_virtual_call(CallInfo& result, Handle recv, KlassHandle receiver_klass, KlassHandle resolved_klass,
|
|
symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass,
|
|
bool check_access, bool check_null_and_abstract, TRAPS) {
|
|
methodHandle resolved_method;
|
|
linktime_resolve_virtual_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
runtime_resolve_virtual_method(result, resolved_method, resolved_klass, recv, receiver_klass, check_null_and_abstract, CHECK);
|
|
}
|
|
|
|
// throws linktime exceptions
|
|
void LinkResolver::linktime_resolve_virtual_method(methodHandle &resolved_method, KlassHandle resolved_klass,
|
|
symbolHandle method_name, symbolHandle method_signature,
|
|
KlassHandle current_klass, bool check_access, TRAPS) {
|
|
// normal method resolution
|
|
resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
|
|
assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier");
|
|
assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier");
|
|
|
|
// check if not static
|
|
if (resolved_method->is_static()) {
|
|
char buf[200];
|
|
jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
resolved_method->name(),
|
|
resolved_method->signature()));
|
|
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
|
|
}
|
|
}
|
|
|
|
// throws runtime exceptions
|
|
void LinkResolver::runtime_resolve_virtual_method(CallInfo& result,
|
|
methodHandle resolved_method,
|
|
KlassHandle resolved_klass,
|
|
Handle recv,
|
|
KlassHandle recv_klass,
|
|
bool check_null_and_abstract,
|
|
TRAPS) {
|
|
|
|
// setup default return values
|
|
int vtable_index = methodOopDesc::invalid_vtable_index;
|
|
methodHandle selected_method;
|
|
|
|
assert(recv.is_null() || recv->is_oop(), "receiver is not an oop");
|
|
|
|
// runtime method resolution
|
|
if (check_null_and_abstract && recv.is_null()) { // check if receiver exists
|
|
THROW(vmSymbols::java_lang_NullPointerException());
|
|
}
|
|
|
|
// Virtual methods cannot be resolved before its klass has been linked, for otherwise the methodOop's
|
|
// has not been rewritten, and the vtable initialized.
|
|
assert(instanceKlass::cast(resolved_method->method_holder())->is_linked(), "must be linked");
|
|
|
|
// Virtual methods cannot be resolved before its klass has been linked, for otherwise the methodOop's
|
|
// has not been rewritten, and the vtable initialized. Make sure to do this after the nullcheck, since
|
|
// a missing receiver might result in a bogus lookup.
|
|
assert(instanceKlass::cast(resolved_method->method_holder())->is_linked(), "must be linked");
|
|
|
|
// do lookup based on receiver klass using the vtable index
|
|
if (resolved_method->method_holder()->klass_part()->is_interface()) { // miranda method
|
|
vtable_index = vtable_index_of_miranda_method(resolved_klass,
|
|
symbolHandle(THREAD, resolved_method->name()),
|
|
symbolHandle(THREAD, resolved_method->signature()), CHECK);
|
|
assert(vtable_index >= 0 , "we should have valid vtable index at this point");
|
|
|
|
instanceKlass* inst = instanceKlass::cast(recv_klass());
|
|
selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index));
|
|
} else {
|
|
// at this point we are sure that resolved_method is virtual and not
|
|
// a miranda method; therefore, it must have a valid vtable index.
|
|
vtable_index = resolved_method->vtable_index();
|
|
// We could get a negative vtable_index for final methods,
|
|
// because as an optimization they are they are never put in the vtable,
|
|
// unless they override an existing method.
|
|
// If we do get a negative, it means the resolved method is the the selected
|
|
// method, and it can never be changed by an override.
|
|
if (vtable_index == methodOopDesc::nonvirtual_vtable_index) {
|
|
assert(resolved_method->can_be_statically_bound(), "cannot override this method");
|
|
selected_method = resolved_method;
|
|
} else {
|
|
// recv_klass might be an arrayKlassOop but all vtables start at
|
|
// the same place. The cast is to avoid virtual call and assertion.
|
|
instanceKlass* inst = (instanceKlass*)recv_klass()->klass_part();
|
|
selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index));
|
|
}
|
|
}
|
|
|
|
// check if method exists
|
|
if (selected_method.is_null()) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
resolved_method->name(),
|
|
resolved_method->signature()));
|
|
}
|
|
|
|
// check if abstract
|
|
if (check_null_and_abstract && selected_method->is_abstract()) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
|
|
selected_method->name(),
|
|
selected_method->signature()));
|
|
}
|
|
|
|
// setup result
|
|
result.set_virtual(resolved_klass, recv_klass, resolved_method, selected_method, vtable_index, CHECK);
|
|
}
|
|
|
|
void LinkResolver::resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass,
|
|
symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass,
|
|
bool check_access, bool check_null_and_abstract, TRAPS) {
|
|
methodHandle resolved_method;
|
|
linktime_resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
runtime_resolve_interface_method(result, resolved_method, resolved_klass, recv, recv_klass, check_null_and_abstract, CHECK);
|
|
}
|
|
|
|
// throws linktime exceptions
|
|
void LinkResolver::linktime_resolve_interface_method(methodHandle& resolved_method, KlassHandle resolved_klass, symbolHandle method_name,
|
|
symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS) {
|
|
// normal interface method resolution
|
|
resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
|
|
|
|
assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier");
|
|
assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier");
|
|
}
|
|
|
|
// throws runtime exceptions
|
|
void LinkResolver::runtime_resolve_interface_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass,
|
|
Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS) {
|
|
// check if receiver exists
|
|
if (check_null_and_abstract && recv.is_null()) {
|
|
THROW(vmSymbols::java_lang_NullPointerException());
|
|
}
|
|
|
|
// check if receiver klass implements the resolved interface
|
|
if (!recv_klass->is_subtype_of(resolved_klass())) {
|
|
char buf[200];
|
|
jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s",
|
|
(Klass::cast(recv_klass()))->external_name(),
|
|
(Klass::cast(resolved_klass()))->external_name());
|
|
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
|
|
}
|
|
// do lookup based on receiver klass
|
|
methodHandle sel_method;
|
|
lookup_instance_method_in_klasses(sel_method, recv_klass,
|
|
symbolHandle(THREAD, resolved_method->name()),
|
|
symbolHandle(THREAD, resolved_method->signature()), CHECK);
|
|
// check if method exists
|
|
if (sel_method.is_null()) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
|
|
resolved_method->name(),
|
|
resolved_method->signature()));
|
|
}
|
|
// check if public
|
|
if (!sel_method->is_public()) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_IllegalAccessError(),
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
|
|
sel_method->name(),
|
|
sel_method->signature()));
|
|
}
|
|
// check if abstract
|
|
if (check_null_and_abstract && sel_method->is_abstract()) {
|
|
ResourceMark rm(THREAD);
|
|
THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
|
|
methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
|
|
sel_method->name(),
|
|
sel_method->signature()));
|
|
}
|
|
// setup result
|
|
result.set_interface(resolved_klass, recv_klass, resolved_method, sel_method, CHECK);
|
|
}
|
|
|
|
|
|
methodHandle LinkResolver::linktime_resolve_interface_method_or_null(
|
|
KlassHandle resolved_klass,
|
|
symbolHandle method_name,
|
|
symbolHandle method_signature,
|
|
KlassHandle current_klass,
|
|
bool check_access) {
|
|
EXCEPTION_MARK;
|
|
methodHandle method_result;
|
|
linktime_resolve_interface_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
return methodHandle();
|
|
} else {
|
|
return method_result;
|
|
}
|
|
}
|
|
|
|
methodHandle LinkResolver::linktime_resolve_virtual_method_or_null(
|
|
KlassHandle resolved_klass,
|
|
symbolHandle method_name,
|
|
symbolHandle method_signature,
|
|
KlassHandle current_klass,
|
|
bool check_access) {
|
|
EXCEPTION_MARK;
|
|
methodHandle method_result;
|
|
linktime_resolve_virtual_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
return methodHandle();
|
|
} else {
|
|
return method_result;
|
|
}
|
|
}
|
|
|
|
methodHandle LinkResolver::resolve_virtual_call_or_null(
|
|
KlassHandle receiver_klass,
|
|
KlassHandle resolved_klass,
|
|
symbolHandle name,
|
|
symbolHandle signature,
|
|
KlassHandle current_klass) {
|
|
EXCEPTION_MARK;
|
|
CallInfo info;
|
|
resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
return methodHandle();
|
|
}
|
|
return info.selected_method();
|
|
}
|
|
|
|
methodHandle LinkResolver::resolve_interface_call_or_null(
|
|
KlassHandle receiver_klass,
|
|
KlassHandle resolved_klass,
|
|
symbolHandle name,
|
|
symbolHandle signature,
|
|
KlassHandle current_klass) {
|
|
EXCEPTION_MARK;
|
|
CallInfo info;
|
|
resolve_interface_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
return methodHandle();
|
|
}
|
|
return info.selected_method();
|
|
}
|
|
|
|
int LinkResolver::resolve_virtual_vtable_index(
|
|
KlassHandle receiver_klass,
|
|
KlassHandle resolved_klass,
|
|
symbolHandle name,
|
|
symbolHandle signature,
|
|
KlassHandle current_klass) {
|
|
EXCEPTION_MARK;
|
|
CallInfo info;
|
|
resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
return methodOopDesc::invalid_vtable_index;
|
|
}
|
|
return info.vtable_index();
|
|
}
|
|
|
|
methodHandle LinkResolver::resolve_static_call_or_null(
|
|
KlassHandle resolved_klass,
|
|
symbolHandle name,
|
|
symbolHandle signature,
|
|
KlassHandle current_klass) {
|
|
EXCEPTION_MARK;
|
|
CallInfo info;
|
|
resolve_static_call(info, resolved_klass, name, signature, current_klass, true, false, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
return methodHandle();
|
|
}
|
|
return info.selected_method();
|
|
}
|
|
|
|
methodHandle LinkResolver::resolve_special_call_or_null(KlassHandle resolved_klass, symbolHandle name, symbolHandle signature,
|
|
KlassHandle current_klass) {
|
|
EXCEPTION_MARK;
|
|
CallInfo info;
|
|
resolve_special_call(info, resolved_klass, name, signature, current_klass, true, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
return methodHandle();
|
|
}
|
|
return info.selected_method();
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------------------------------------------------------
|
|
// ConstantPool entries
|
|
|
|
void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) {
|
|
switch (byte) {
|
|
case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break;
|
|
case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break;
|
|
case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break;
|
|
case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break;
|
|
case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
void LinkResolver::resolve_pool(KlassHandle& resolved_klass, symbolHandle& method_name, symbolHandle& method_signature,
|
|
KlassHandle& current_klass, constantPoolHandle pool, int index, TRAPS) {
|
|
// resolve klass
|
|
resolve_klass(resolved_klass, pool, index, CHECK);
|
|
|
|
// Get name, signature, and static klass
|
|
method_name = symbolHandle(THREAD, pool->name_ref_at(index));
|
|
method_signature = symbolHandle(THREAD, pool->signature_ref_at(index));
|
|
current_klass = KlassHandle(THREAD, pool->pool_holder());
|
|
}
|
|
|
|
|
|
void LinkResolver::resolve_invokestatic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) {
|
|
KlassHandle resolved_klass;
|
|
symbolHandle method_name;
|
|
symbolHandle method_signature;
|
|
KlassHandle current_klass;
|
|
resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
|
|
resolve_static_call(result, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
|
|
}
|
|
|
|
|
|
void LinkResolver::resolve_invokespecial(CallInfo& result, constantPoolHandle pool, int index, TRAPS) {
|
|
KlassHandle resolved_klass;
|
|
symbolHandle method_name;
|
|
symbolHandle method_signature;
|
|
KlassHandle current_klass;
|
|
resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
|
|
resolve_special_call(result, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
|
|
}
|
|
|
|
|
|
void LinkResolver::resolve_invokevirtual(CallInfo& result, Handle recv,
|
|
constantPoolHandle pool, int index,
|
|
TRAPS) {
|
|
|
|
KlassHandle resolved_klass;
|
|
symbolHandle method_name;
|
|
symbolHandle method_signature;
|
|
KlassHandle current_klass;
|
|
resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
|
|
KlassHandle recvrKlass (THREAD, recv.is_null() ? (klassOop)NULL : recv->klass());
|
|
resolve_virtual_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
|
|
}
|
|
|
|
|
|
void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS) {
|
|
KlassHandle resolved_klass;
|
|
symbolHandle method_name;
|
|
symbolHandle method_signature;
|
|
KlassHandle current_klass;
|
|
resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
|
|
KlassHandle recvrKlass (THREAD, recv.is_null() ? (klassOop)NULL : recv->klass());
|
|
resolve_interface_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
|
|
}
|
|
|
|
|
|
void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int raw_index, TRAPS) {
|
|
assert(EnableInvokeDynamic, "");
|
|
|
|
// This guy is reached from InterpreterRuntime::resolve_invokedynamic.
|
|
|
|
// At this point, we only need the signature, and can ignore the name.
|
|
symbolHandle method_signature(THREAD, pool->signature_ref_at(raw_index)); // raw_index works directly
|
|
symbolHandle method_name = vmSymbolHandles::invokeExact_name();
|
|
KlassHandle resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
|
|
|
|
// JSR 292: this must be an implicitly generated method MethodHandle.invokeExact(*...)
|
|
// The extra MH receiver will be inserted into the stack on every call.
|
|
methodHandle resolved_method;
|
|
KlassHandle current_klass(THREAD, pool->pool_holder());
|
|
lookup_implicit_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, CHECK);
|
|
if (resolved_method.is_null()) {
|
|
THROW(vmSymbols::java_lang_InternalError());
|
|
}
|
|
result.set_dynamic(resolved_method, CHECK);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------------------------------
|
|
#ifndef PRODUCT
|
|
|
|
void FieldAccessInfo::print() {
|
|
ResourceMark rm;
|
|
tty->print_cr("Field %s@%d", name()->as_C_string(), field_offset());
|
|
}
|
|
|
|
#endif
|