82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
/*
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* Copyright (C) 2020 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 "dalvik_system_DexFile.h"
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#include <memory>
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#include "class_loader_context.h"
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#include "class_root-inl.h"
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#include "mirror/object_array-alloc-inl.h"
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#include "native_util.h"
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#include "nativehelper/jni_macros.h"
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#include "thread-inl.h"
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namespace art {
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static bool append_string(Thread* self,
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Handle<mirror::ObjectArray<mirror::String>> array,
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uint32_t& i,
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const std::string& string) REQUIRES_SHARED(Locks::mutator_lock_) {
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ObjPtr<mirror::String> ostring = mirror::String::AllocFromModifiedUtf8(self, string.c_str());
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if (ostring == nullptr) {
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DCHECK(self->IsExceptionPending());
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return false;
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}
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// We're initializing a newly allocated array object, so we do not need to record that under
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// a transaction. If the transaction is aborted, the whole object shall be unreachable.
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array->SetWithoutChecks</*kTransactionActive=*/ false, /*kCheckTransaction=*/ false>(i, ostring);
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++i;
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return true;
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}
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static jobjectArray BaseDexClassLoader_computeClassLoaderContextsNative(JNIEnv* env,
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jobject class_loader) {
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CHECK(class_loader != nullptr);
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std::map<std::string, std::string> context_map =
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ClassLoaderContext::EncodeClassPathContextsForClassLoader(class_loader);
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Thread* self = Thread::ForEnv(env);
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ScopedObjectAccess soa(self);
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StackHandleScope<1u> hs(self);
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Handle<mirror::ObjectArray<mirror::String>> array = hs.NewHandle(
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mirror::ObjectArray<mirror::String>::Alloc(
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self, GetClassRoot<mirror::ObjectArray<mirror::String>>(), 2 * context_map.size()));
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if (array == nullptr) {
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DCHECK(self->IsExceptionPending());
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return nullptr;
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}
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uint32_t i = 0;
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for (const auto& classpath_to_context : context_map) {
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const std::string& classpath = classpath_to_context.first;
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const std::string& context = classpath_to_context.second;
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if (!append_string(self, array, i, classpath) || !append_string(self, array, i, context)) {
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return nullptr;
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}
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}
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return soa.AddLocalReference<jobjectArray>(array.Get());
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}
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static JNINativeMethod gMethods[] = {
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NATIVE_METHOD(BaseDexClassLoader, computeClassLoaderContextsNative,
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"()[Ljava/lang/String;"),
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};
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void register_dalvik_system_BaseDexClassLoader(JNIEnv* env) {
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REGISTER_NATIVE_METHODS("dalvik/system/BaseDexClassLoader");
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}
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} // namespace art
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