1/* Copyright (C) 2017 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.
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30 */
31
32#ifndef ART_RUNTIME_OPENJDKJVMTI_TI_CLASS_LOADER_H_
33#define ART_RUNTIME_OPENJDKJVMTI_TI_CLASS_LOADER_H_
34
35#include <string>
36
37#include <jni.h>
38
39#include "art_jvmti.h"
40#include "art_method.h"
41#include "base/array_slice.h"
42#include "class_linker.h"
43#include "dex_file.h"
44#include "gc_root-inl.h"
45#include "globals.h"
46#include "jni_env_ext-inl.h"
47#include "jvmti.h"
48#include "linear_alloc.h"
49#include "mem_map.h"
50#include "mirror/array-inl.h"
51#include "mirror/array.h"
52#include "mirror/class-inl.h"
53#include "mirror/class.h"
54#include "mirror/class_loader-inl.h"
55#include "mirror/string-inl.h"
56#include "oat_file.h"
57#include "obj_ptr.h"
58#include "scoped_thread_state_change-inl.h"
59#include "stack.h"
60#include "ti_class_definition.h"
61#include "thread_list.h"
62#include "transform.h"
63#include "utf.h"
64#include "utils/dex_cache_arrays_layout-inl.h"
65
66namespace openjdkjvmti {
67
68// Class that can redefine a single class's methods.
69// TODO We should really make this be driven by an outside class so we can do multiple classes at
70// the same time and have less required cleanup.
71class ClassLoaderHelper {
72 public:
73  static bool AddToClassLoader(art::Thread* self,
74                               art::Handle<art::mirror::ClassLoader> loader,
75                               const art::DexFile* dex_file)
76      REQUIRES_SHARED(art::Locks::mutator_lock_);
77
78  // Finds a java.lang.DexFile object that is associated with the given ClassLoader. Each of these
79  // j.l.DexFile objects holds several art::DexFile*s in it.
80  // TODO This should return the actual source java.lang.DexFile object for the klass being loaded.
81  static art::ObjPtr<art::mirror::Object> FindSourceDexFileObject(
82      art::Thread* self, art::Handle<art::mirror::ClassLoader> loader)
83      REQUIRES_SHARED(art::Locks::mutator_lock_);
84
85  static art::ObjPtr<art::mirror::LongArray> GetDexFileCookie(
86      art::Handle<art::mirror::Object> java_dex_file) REQUIRES_SHARED(art::Locks::mutator_lock_);
87
88  static art::ObjPtr<art::mirror::LongArray> AllocateNewDexFileCookie(
89      art::Thread* self,
90      art::Handle<art::mirror::LongArray> old_dex_file_cookie,
91      const art::DexFile* new_dex_file) REQUIRES_SHARED(art::Locks::mutator_lock_);
92
93  static void UpdateJavaDexFile(art::ObjPtr<art::mirror::Object> java_dex_file,
94                                art::ObjPtr<art::mirror::LongArray> new_cookie)
95      REQUIRES(art::Roles::uninterruptible_) REQUIRES_SHARED(art::Locks::mutator_lock_);
96};
97
98}  // namespace openjdkjvmti
99#endif  // ART_RUNTIME_OPENJDKJVMTI_TI_CLASS_LOADER_H_
100