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86 lines
3.0 KiB
86 lines
3.0 KiB
4 months ago
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/*
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* Copyright (C) 2020 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <android/dlext.h>
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#include <dlfcn.h>
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#include <stdlib.h>
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#include <string>
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#include "../core_shared_libs.h"
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#include "../dlext_private.h"
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extern "C" void global_function();
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extern "C" void internal_function();
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int main(int argc, char* argv[]) {
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if (argc != 2) {
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fprintf(stderr, "usage: %s NS_PATH\n", argv[0]);
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fprintf(stderr, "NS_PATH path to the ns_hidden_child_app directory\n");
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exit(1);
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}
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// Ensure that -Wl,--needed doesn't break the test by removing DT_NEEDED entries.
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global_function();
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internal_function();
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const char* app_lib_dir = argv[1];
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android_namespace_t* app_ns =
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android_create_namespace("app", nullptr, app_lib_dir, ANDROID_NAMESPACE_TYPE_ISOLATED,
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nullptr, nullptr);
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if (app_ns == nullptr) {
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fprintf(stderr, "android_create_namespace failed: %s\n", dlerror());
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exit(1);
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}
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std::string public_libs = std::string(kCoreSharedLibs) + ":libns_hidden_child_public.so";
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if (!android_link_namespaces(app_ns, nullptr, public_libs.c_str())) {
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fprintf(stderr, "android_link_namespaces failed: %s\n", dlerror());
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exit(1);
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}
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android_dlextinfo ext = {
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.flags = ANDROID_DLEXT_USE_NAMESPACE,
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.library_namespace = app_ns,
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};
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void* app_lib = android_dlopen_ext("libns_hidden_child_app.so", RTLD_NOW | RTLD_LOCAL, &ext);
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if (app_lib == nullptr) {
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fprintf(stderr, "android_dlopen_ext failed: %s\n", dlerror());
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exit(1);
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}
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auto app_function = reinterpret_cast<void(*)()>(dlsym(app_lib, "app_function"));
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if (app_function == nullptr) {
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fprintf(stderr, "dlsym failed to find app_function: %s\n", dlerror());
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exit(1);
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}
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app_function();
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return 0;
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}
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