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100 lines
4.2 KiB
100 lines
4.2 KiB
/* Copyright (C) 2017 The Android Open Source Project
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This file implements interfaces from the file jvmti.h. This implementation
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* is licensed under the same terms as the file jvmti.h. The
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* copyright and license information for the file jvmti.h follows.
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*
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* Copyright (c) 2003, 2011, 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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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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#ifndef ART_OPENJDKJVMTI_TI_CLASS_LOADER_H_
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#define ART_OPENJDKJVMTI_TI_CLASS_LOADER_H_
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#include <string>
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#include <jni.h>
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#include "base/globals.h"
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#include "base/mutex.h"
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#include "jvmti.h"
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#include "mirror/array.h"
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namespace art {
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class DexFile;
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template <class MirrorType> class Handle;
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template <class MirrorType> class ObjPtr;
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class Thread;
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} // namespace art
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namespace openjdkjvmti {
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// Class that can redefine a single class's methods.
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// TODO We should really make this be driven by an outside class so we can do multiple classes at
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// the same time and have less required cleanup.
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class ClassLoaderHelper {
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public:
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static bool AddToClassLoader(art::Thread* self,
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art::Handle<art::mirror::ClassLoader> loader,
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const art::DexFile* dex_file)
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REQUIRES_SHARED(art::Locks::mutator_lock_);
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// Finds a java.lang.DexFile object that is associated with the given ClassLoader. Each of these
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// j.l.DexFile objects holds several art::DexFile*s in it.
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// TODO This should return the actual source java.lang.DexFile object for the klass being loaded.
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static art::ObjPtr<art::mirror::Object> FindSourceDexFileObject(
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art::Thread* self, art::Handle<art::mirror::ClassLoader> loader)
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REQUIRES_SHARED(art::Locks::mutator_lock_);
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// Calls visitor on each java.lang.DexFile associated with the given loader. The visitor should
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// return true to continue on to the next DexFile or false to stop iterating.
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template<typename Visitor>
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static inline void VisitDexFileObjects(art::Thread* self,
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art::Handle<art::mirror::ClassLoader> loader,
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const Visitor& visitor)
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REQUIRES_SHARED(art::Locks::mutator_lock_);
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static art::ObjPtr<art::mirror::LongArray> GetDexFileCookie(
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art::Handle<art::mirror::Object> java_dex_file) REQUIRES_SHARED(art::Locks::mutator_lock_);
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static art::ObjPtr<art::mirror::LongArray> AllocateNewDexFileCookie(
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art::Thread* self,
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art::Handle<art::mirror::LongArray> old_dex_file_cookie,
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const art::DexFile* new_dex_file) REQUIRES_SHARED(art::Locks::mutator_lock_);
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static void UpdateJavaDexFile(art::ObjPtr<art::mirror::Object> java_dex_file,
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art::ObjPtr<art::mirror::LongArray> new_cookie)
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REQUIRES(art::Roles::uninterruptible_) REQUIRES_SHARED(art::Locks::mutator_lock_);
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private:
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static art::ObjPtr<art::mirror::ObjectArray<art::mirror::Object>> GetDexElementList(
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art::Thread* self, art::Handle<art::mirror::ClassLoader> loader)
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REQUIRES_SHARED(art::Locks::mutator_lock_);
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};
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} // namespace openjdkjvmti
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#endif // ART_OPENJDKJVMTI_TI_CLASS_LOADER_H_
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