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Alex Lighta7e38d82017-01-19 14:57:28 -08001/* Copyright (C) 2016 The Android Open Source Project
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This file implements interfaces from the file jvmti.h. This implementation
5 * is licensed under the same terms as the file jvmti.h. The
6 * copyright and license information for the file jvmti.h follows.
7 *
8 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
10 *
11 * This code is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License version 2 only, as
13 * published by the Free Software Foundation. Oracle designates this
14 * particular file as subject to the "Classpath" exception as provided
15 * by Oracle in the LICENSE file that accompanied this code.
16 *
17 * This code is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * version 2 for more details (a copy is included in the LICENSE file that
21 * accompanied this code).
22 *
23 * You should have received a copy of the GNU General Public License version
24 * 2 along with this work; if not, write to the Free Software Foundation,
25 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
26 *
27 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
28 * or visit www.oracle.com if you need additional information or have any
29 * questions.
30 */
31
32#include "ti_class_definition.h"
33
34#include "dex_file.h"
35#include "handle_scope-inl.h"
36#include "handle.h"
37#include "mirror/class-inl.h"
38#include "mirror/object-inl.h"
39#include "thread.h"
40
41namespace openjdkjvmti {
42
43bool ArtClassDefinition::IsModified(art::Thread* self) const {
44 if (modified) {
45 return true;
46 }
47 // Check if the dex file we want to set is the same as the current one.
48 art::StackHandleScope<1> hs(self);
49 art::Handle<art::mirror::Class> h_klass(hs.NewHandle(self->DecodeJObject(klass)->AsClass()));
50 const art::DexFile& cur_dex_file = h_klass->GetDexFile();
51 return static_cast<jint>(cur_dex_file.Size()) != dex_len ||
52 memcmp(cur_dex_file.Begin(), dex_data.get(), dex_len) != 0;
53}
54
55} // namespace openjdkjvmti