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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "art_method-inl.h"
#include "jni.h"
#include "scoped_thread_state_change.h"
#include "stack.h"
#include "thread.h"
namespace art {
namespace {
extern "C" JNIEXPORT jobject JNICALL Java_Main_cloneResolvedMethods(JNIEnv* env,
jclass,
jclass cls) {
ScopedObjectAccess soa(Thread::Current());
mirror::DexCache* dex_cache = soa.Decode<mirror::Class*>(cls)->GetDexCache();
size_t num_methods = dex_cache->NumResolvedMethods();
ArtMethod** methods = dex_cache->GetResolvedMethods();
CHECK_EQ(num_methods != 0u, methods != nullptr);
if (num_methods == 0u) {
return nullptr;
}
jarray array;
if (sizeof(void*) == 4) {
array = env->NewIntArray(num_methods);
} else {
array = env->NewLongArray(num_methods);
}
CHECK(array != nullptr);
mirror::PointerArray* pointer_array = soa.Decode<mirror::PointerArray*>(array);
for (size_t i = 0; i != num_methods; ++i) {
ArtMethod* method = mirror::DexCache::GetElementPtrSize(methods, i, sizeof(void*));
pointer_array->SetElementPtrSize(i, method, sizeof(void*));
}
return array;
}
extern "C" JNIEXPORT void JNICALL Java_Main_restoreResolvedMethods(
JNIEnv*, jclass, jclass cls, jobject old_cache) {
ScopedObjectAccess soa(Thread::Current());
mirror::DexCache* dex_cache = soa.Decode<mirror::Class*>(cls)->GetDexCache();
size_t num_methods = dex_cache->NumResolvedMethods();
ArtMethod** methods = soa.Decode<mirror::Class*>(cls)->GetDexCache()->GetResolvedMethods();
CHECK_EQ(num_methods != 0u, methods != nullptr);
mirror::PointerArray* old = soa.Decode<mirror::PointerArray*>(old_cache);
CHECK_EQ(methods != nullptr, old != nullptr);
CHECK_EQ(num_methods, static_cast<size_t>(old->GetLength()));
for (size_t i = 0; i != num_methods; ++i) {
ArtMethod* method = old->GetElementPtrSize<ArtMethod*>(i, sizeof(void*));
mirror::DexCache::SetElementPtrSize(methods, i, method, sizeof(void*));
}
}
} // namespace
} // namespace art
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