1 /*
2 * Copyright 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "jni.h"
18
19 #include "gc/heap.h"
20 #include "gc/space/image_space.h"
21 #include "gc/space/space-inl.h"
22 #include "gc/space/region_space.h"
23 #include "image.h"
24 #include "mirror/class.h"
25 #include "runtime.h"
26 #include "scoped_thread_state_change-inl.h"
27
28 namespace art {
29
30 namespace {
31
Java_Main_getRegionSize(JNIEnv *,jclass)32 extern "C" JNIEXPORT jint JNICALL Java_Main_getRegionSize(JNIEnv*, jclass) {
33 return gc::space::RegionSpace::kRegionSize;
34 }
35
Java_Main_checkAppImageSectionSize(JNIEnv *,jclass,jclass c)36 extern "C" JNIEXPORT jint JNICALL Java_Main_checkAppImageSectionSize(JNIEnv*, jclass, jclass c) {
37 ScopedObjectAccess soa(Thread::Current());
38 ObjPtr<mirror::Class> klass_ptr = soa.Decode<mirror::Class>(c);
39 for (auto* space : Runtime::Current()->GetHeap()->GetContinuousSpaces()) {
40 if (space->IsImageSpace()) {
41 auto* image_space = space->AsImageSpace();
42 const auto& image_header = image_space->GetImageHeader();
43 if (image_header.IsAppImage() && image_space->HasAddress(klass_ptr.Ptr())) {
44 return image_header.GetObjectsSection().Size();
45 }
46 }
47 }
48 return 0;
49 }
50
51 } // namespace
52
53 } // namespace art
54