97 lines
3.7 KiB
C++
97 lines
3.7 KiB
C++
/*
|
|
* 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.h"
|
|
#include "base/enums.h"
|
|
#include "jni.h"
|
|
#include "mirror/array-inl.h"
|
|
#include "mirror/class-inl.h"
|
|
#include "mirror/dex_cache-inl.h"
|
|
#include "scoped_thread_state_change-inl.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());
|
|
ObjPtr<mirror::DexCache> dex_cache = soa.Decode<mirror::Class>(cls)->GetDexCache();
|
|
size_t num_methods = dex_cache->NumResolvedMethods();
|
|
mirror::MethodDexCacheType* 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(2u * num_methods);
|
|
} else {
|
|
array = env->NewLongArray(2u * num_methods);
|
|
}
|
|
CHECK(array != nullptr);
|
|
ObjPtr<mirror::Array> decoded_array = soa.Decode<mirror::Array>(array);
|
|
for (size_t i = 0; i != num_methods; ++i) {
|
|
auto pair = mirror::DexCache::GetNativePair(methods, i);
|
|
uint32_t index = pair.index;
|
|
ArtMethod* method = pair.object;
|
|
if (sizeof(void*) == 4) {
|
|
ObjPtr<mirror::IntArray> int_array = ObjPtr<mirror::IntArray>::DownCast(decoded_array);
|
|
int_array->Set(2u * i, index);
|
|
int_array->Set(2u * i + 1u, reinterpret_cast32<jint>(method));
|
|
} else {
|
|
ObjPtr<mirror::LongArray> long_array = ObjPtr<mirror::LongArray>::DownCast(decoded_array);
|
|
long_array->Set(2u * i, index);
|
|
long_array->Set(2u * i + 1u, reinterpret_cast64<jlong>(method));
|
|
}
|
|
}
|
|
return array;
|
|
}
|
|
|
|
extern "C" JNIEXPORT void JNICALL Java_Main_restoreResolvedMethods(
|
|
JNIEnv*, jclass, jclass cls, jobject old_cache) {
|
|
ScopedObjectAccess soa(Thread::Current());
|
|
ObjPtr<mirror::DexCache> dex_cache = soa.Decode<mirror::Class>(cls)->GetDexCache();
|
|
size_t num_methods = dex_cache->NumResolvedMethods();
|
|
mirror::MethodDexCacheType* methods = dex_cache->GetResolvedMethods();
|
|
CHECK_EQ(num_methods != 0u, methods != nullptr);
|
|
ObjPtr<mirror::Array> old = soa.Decode<mirror::Array>(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) {
|
|
uint32_t index;
|
|
ArtMethod* method;
|
|
if (sizeof(void*) == 4) {
|
|
ObjPtr<mirror::IntArray> int_array = ObjPtr<mirror::IntArray>::DownCast(old);
|
|
index = static_cast<uint32_t>(int_array->Get(2u * i));
|
|
method = reinterpret_cast32<ArtMethod*>(int_array->Get(2u * i + 1u));
|
|
} else {
|
|
ObjPtr<mirror::LongArray> long_array = ObjPtr<mirror::LongArray>::DownCast(old);
|
|
index = dchecked_integral_cast<uint32_t>(long_array->Get(2u * i));
|
|
method = reinterpret_cast64<ArtMethod*>(long_array->Get(2u * i + 1u));
|
|
}
|
|
mirror::MethodDexCachePair pair(method, index);
|
|
mirror::DexCache::SetNativePair(methods, i, pair);
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
} // namespace art
|