| // Copyright 2017 The Bazel Authors. All rights reserved. |
| // |
| // 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. |
| |
| package com.google.devtools.build.lib.rules.cpp.transitions; |
| |
| import com.google.devtools.build.lib.analysis.config.BuildOptions; |
| import com.google.devtools.build.lib.analysis.config.transitions.PatchTransition; |
| import com.google.devtools.build.lib.rules.cpp.CppOptions; |
| import com.google.devtools.build.lib.rules.cpp.FdoSupport; |
| |
| /** |
| * Configuration transition that enters "LIPO context collector" mode on a |
| * "LIPO optimization"-enabled input configuration. |
| * |
| * <p>See {@link FdoSupport} for details. |
| */ |
| public class LipoContextCollectorTransition implements PatchTransition { |
| public static final LipoContextCollectorTransition INSTANCE = |
| new LipoContextCollectorTransition(); |
| |
| private LipoContextCollectorTransition() {} |
| |
| @Override |
| public BuildOptions apply(BuildOptions options) { |
| // If this target and its transitive closure don't have C++ options, there's no |
| // LIPO context to change. |
| if (!options.contains(CppOptions.class)) { |
| return options; |
| } |
| CppOptions cppOptions = options.get(CppOptions.class); |
| if (!cppOptions.isLipoOptimization()) { |
| return options; |
| } |
| BuildOptions collectorOptions = options.clone(); |
| collectorOptions.get(CppOptions.class).lipoConfigurationState = |
| CppOptions.LipoConfigurationState.LIPO_CONTEXT_COLLECTOR; |
| return collectorOptions; |
| } |
| } |