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82 lines
3.1 KiB
82 lines
3.1 KiB
/*
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* Copyright (C) 2019 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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// SP-HAL(Sameprocess-HAL)s are the only vendor libraries that are allowed to be
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// loaded inside system processes. libEGL_<chipset>.so, libGLESv2_<chipset>.so,
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// android.hardware.graphics.mapper@2.0-impl.so, etc are SP-HALs.
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//
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// This namespace is exclusivly for SP-HALs. When the framework tries to
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// dynamically load SP-HALs, android_dlopen_ext() is used to explicitly specify
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// that they should be searched and loaded from this namespace.
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//
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// Note that there is no link from the default namespace to this namespace.
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#include "linkerconfig/namespacebuilder.h"
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using android::linkerconfig::modules::Namespace;
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namespace android {
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namespace linkerconfig {
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namespace contents {
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Namespace BuildSphalNamespace([[maybe_unused]] const Context& ctx) {
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// Visible to allow use with android_dlopen_ext, and with
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// android_link_namespaces in libnativeloader.
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Namespace ns("sphal",
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/*is_isolated=*/!ctx.IsUnrestrictedSection(),
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/*is_visible=*/true);
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ns.AddSearchPath("/odm/${LIB}");
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ns.AddSearchPath("/vendor/${LIB}");
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ns.AddSearchPath("/vendor/${LIB}/egl");
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ns.AddSearchPath("/vendor/${LIB}/hw");
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ns.AddPermittedPath("/odm/${LIB}");
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ns.AddPermittedPath("/vendor/${LIB}");
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ns.AddPermittedPath("/system/vendor/${LIB}");
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if (ctx.IsApexBinaryConfig() && !ctx.IsVndkAvailable()) {
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// If device is legacy, let Sphal libraries access to system lib path for
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// VNDK-SP libraries
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ns.AddSearchPath("/system/${LIB}");
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ns.AddPermittedPath("/system/${LIB}");
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}
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if (ctx.IsApexBinaryConfig()) {
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if (ctx.IsVndkAvailable()) {
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ns.AddRequires(std::vector{":vndksp"});
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ns.GetLink(ctx.GetSystemNamespaceName())
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.AddSharedLib(Var("LLNDK_LIBRARIES_VENDOR", ""));
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}
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} else {
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// Once in this namespace, access to libraries in /system/lib is restricted.
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// Only libs listed here can be used. Order is important here as the
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// namespaces are tried in this order. rs should be before vndk because both
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// are capable of loading libRS_internal.so
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if (ctx.IsSystemSection() || ctx.IsUnrestrictedSection()) {
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ns.GetLink("rs").AddSharedLib("libRS_internal.so");
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}
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ns.GetLink(ctx.GetSystemNamespaceName())
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.AddSharedLib(Var("LLNDK_LIBRARIES_VENDOR", ""));
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ns.GetLink("vndk").AddSharedLib(
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Var("VNDK_SAMEPROCESS_LIBRARIES_VENDOR", ""));
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ns.AddRequires(std::vector{"libneuralnetworks.so"});
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}
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return ns;
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}
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} // namespace contents
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} // namespace linkerconfig
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} // namespace android
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