196 lines
8.6 KiB
C++
196 lines
8.6 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_MIRROR_CLASS_EXT_H_
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#define ART_RUNTIME_MIRROR_CLASS_EXT_H_
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#include "array.h"
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#include "class.h"
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#include "dex_cache.h"
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#include "object.h"
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#include "object_array.h"
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#include "string.h"
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namespace art {
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struct ClassExtOffsets;
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namespace mirror {
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// C++ mirror of dalvik.system.ClassExt
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class MANAGED ClassExt : public Object {
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public:
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MIRROR_CLASS("Ldalvik/system/ClassExt;");
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static uint32_t ClassSize(PointerSize pointer_size);
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// Size of an instance of dalvik.system.ClassExt.
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static constexpr uint32_t InstanceSize() {
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return sizeof(ClassExt);
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}
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void SetErroneousStateError(ObjPtr<Throwable> obj) REQUIRES_SHARED(Locks::mutator_lock_);
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ObjPtr<Throwable> GetErroneousStateError() REQUIRES_SHARED(Locks::mutator_lock_);
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ObjPtr<ObjectArray<DexCache>> GetObsoleteDexCaches() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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bool EnsureInstanceJFieldIDsArrayPresent(size_t count)
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REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<PointerArray> GetInstanceJFieldIDsPointerArray() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<Object> GetInstanceJFieldIDs() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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bool HasInstanceFieldPointerIdMarker() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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bool EnsureStaticJFieldIDsArrayPresent(size_t count)
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REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<PointerArray> GetStaticJFieldIDsPointerArray() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<Object> GetStaticJFieldIDs() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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bool HasStaticFieldPointerIdMarker() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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bool EnsureJMethodIDsArrayPresent(size_t count)
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REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<Object> GetJMethodIDs() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<PointerArray> GetJMethodIDsPointerArray() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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bool HasMethodPointerIdMarker() REQUIRES_SHARED(Locks::mutator_lock_);
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<PointerArray> GetObsoleteMethods() REQUIRES_SHARED(Locks::mutator_lock_);
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ObjPtr<Object> GetOriginalDexFile() REQUIRES_SHARED(Locks::mutator_lock_);
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// Used to manually initialize the ext-ids arrays for the ClassExt associated
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// with the Class<ClassExt>. This simplifies the id allocation path.
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void SetIdsArraysForClassExtExtData(ObjPtr<Object> marker) REQUIRES_SHARED(Locks::mutator_lock_);
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void SetOriginalDexFile(ObjPtr<Object> bytes) REQUIRES_SHARED(Locks::mutator_lock_);
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uint16_t GetPreRedefineClassDefIndex() REQUIRES_SHARED(Locks::mutator_lock_) {
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return static_cast<uint16_t>(
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GetField32(OFFSET_OF_OBJECT_MEMBER(ClassExt, pre_redefine_class_def_index_)));
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}
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void SetPreRedefineClassDefIndex(uint16_t index) REQUIRES_SHARED(Locks::mutator_lock_);
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const DexFile* GetPreRedefineDexFile() REQUIRES_SHARED(Locks::mutator_lock_) {
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return reinterpret_cast<const DexFile*>(static_cast<uintptr_t>(
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GetField64(OFFSET_OF_OBJECT_MEMBER(ClassExt, pre_redefine_dex_file_ptr_))));
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}
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void SetPreRedefineDexFile(const DexFile* dex_file) REQUIRES_SHARED(Locks::mutator_lock_);
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void SetObsoleteArrays(ObjPtr<PointerArray> methods, ObjPtr<ObjectArray<DexCache>> dex_caches)
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REQUIRES_SHARED(Locks::mutator_lock_);
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// Extend the obsolete arrays by the given amount.
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static bool ExtendObsoleteArrays(Handle<ClassExt> h_this, Thread* self, uint32_t increase)
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REQUIRES_SHARED(Locks::mutator_lock_);
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template<ReadBarrierOption kReadBarrierOption = kWithReadBarrier, class Visitor>
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inline void VisitNativeRoots(Visitor& visitor, PointerSize pointer_size)
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REQUIRES_SHARED(Locks::mutator_lock_);
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template<ReadBarrierOption kReadBarrierOption = kWithReadBarrier, class Visitor>
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inline void VisitMethods(Visitor visitor, PointerSize pointer_size)
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REQUIRES_SHARED(Locks::mutator_lock_);
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static ObjPtr<ClassExt> Alloc(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_);
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// TODO Save the obsolete class, if we have one.
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// TODO We need this so jit-cleanup can work. the obsolete class might get cleaned up early
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// otherwise. We should remove the need for this.
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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ObjPtr<Class> GetObsoleteClass() REQUIRES_SHARED(Locks::mutator_lock_);
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void SetObsoleteClass(ObjPtr<Class> classes) REQUIRES_SHARED(Locks::mutator_lock_);
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template<ReadBarrierOption kReadBarrierOption = kWithReadBarrier, typename Visitor>
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inline void VisitJFieldIDs(Visitor v) REQUIRES_SHARED(Locks::mutator_lock_);
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template<ReadBarrierOption kReadBarrierOption = kWithReadBarrier, typename Visitor>
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inline void VisitJMethodIDs(Visitor v) REQUIRES_SHARED(Locks::mutator_lock_);
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private:
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template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
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ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
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bool EnsureJniIdsArrayPresent(MemberOffset off, size_t count)
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REQUIRES_SHARED(Locks::mutator_lock_);
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// The saved error for this class being erroneous.
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HeapReference<Throwable> erroneous_state_error_;
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// Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses".
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// An array containing the jfieldIDs assigned to each field in the corresponding position in the
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// classes ifields_ array or '0' if no id has been assigned to that field yet.
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HeapReference<PointerArray> instance_jfield_ids_;
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// An array containing the jmethodIDs assigned to each method in the corresponding position in
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// the classes methods_ array or '0' if no id has been assigned to that method yet.
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HeapReference<PointerArray> jmethod_ids_;
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// If set this is the Class object that was being used before a structural redefinition occurred.
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HeapReference<Class> obsolete_class_;
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HeapReference<ObjectArray<DexCache>> obsolete_dex_caches_;
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HeapReference<PointerArray> obsolete_methods_;
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HeapReference<Object> original_dex_file_;
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// An array containing the jfieldIDs assigned to each field in the corresponding position in the
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// classes sfields_ array or '0' if no id has been assigned to that field yet.
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HeapReference<PointerArray> static_jfield_ids_;
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// Native pointer to DexFile and ClassDef index of this class before it was JVMTI-redefined.
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int64_t pre_redefine_dex_file_ptr_;
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int32_t pre_redefine_class_def_index_;
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friend struct art::ClassExtOffsets; // for verifying offset information
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DISALLOW_IMPLICIT_CONSTRUCTORS(ClassExt);
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};
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} // namespace mirror
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} // namespace art
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#endif // ART_RUNTIME_MIRROR_CLASS_EXT_H_
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