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