73 lines
2.7 KiB
C++
73 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2019 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.
|
|
*/
|
|
#pragma once
|
|
#if defined(__ANDROID__)
|
|
|
|
#include <string>
|
|
#include <variant>
|
|
#include <vector>
|
|
|
|
#include <android-base/logging.h>
|
|
#include <android/dlext.h>
|
|
#include <log/log.h>
|
|
#include <nativebridge/native_bridge.h>
|
|
|
|
namespace android {
|
|
|
|
// NativeLoaderNamespace abstracts a linker namespace for the native
|
|
// architecture (ex: arm on arm) or the translated architecture (ex: arm on
|
|
// x86). Instances of this class are managed by LibraryNamespaces object.
|
|
struct NativeLoaderNamespace {
|
|
public:
|
|
// TODO(return with errors)
|
|
static NativeLoaderNamespace Create(const std::string& name, const std::string& search_paths,
|
|
const std::string& permitted_paths,
|
|
const NativeLoaderNamespace* parent, bool is_shared,
|
|
bool is_greylist_enabled);
|
|
|
|
NativeLoaderNamespace(NativeLoaderNamespace&&) = default;
|
|
NativeLoaderNamespace(const NativeLoaderNamespace&) = default;
|
|
NativeLoaderNamespace& operator=(const NativeLoaderNamespace&) = default;
|
|
|
|
android_namespace_t* ToRawAndroidNamespace() const { return std::get<0>(raw_); }
|
|
native_bridge_namespace_t* ToRawNativeBridgeNamespace() const { return std::get<1>(raw_); }
|
|
|
|
std::string name() const { return name_; }
|
|
bool IsBridged() const { return raw_.index() == 1; }
|
|
bool IsNil() const {
|
|
return IsBridged() ? std::get<1>(raw_) == nullptr : std::get<0>(raw_) == nullptr;
|
|
}
|
|
|
|
bool Link(const NativeLoaderNamespace& target, const std::string& shared_libs) const;
|
|
void* Load(const char* lib_name) const;
|
|
char* GetError() const;
|
|
|
|
static NativeLoaderNamespace GetExportedNamespace(const std::string& name, bool is_bridged);
|
|
static NativeLoaderNamespace GetPlatformNamespace(bool is_bridged);
|
|
|
|
private:
|
|
explicit NativeLoaderNamespace(const std::string& name, android_namespace_t* ns)
|
|
: name_(name), raw_(ns) {}
|
|
explicit NativeLoaderNamespace(const std::string& name, native_bridge_namespace_t* ns)
|
|
: name_(name), raw_(ns) {}
|
|
|
|
std::string name_;
|
|
std::variant<android_namespace_t*, native_bridge_namespace_t*> raw_;
|
|
};
|
|
|
|
} // namespace android
|
|
#endif // #if defined(__ANDROID__)
|