| // Copyright 2014 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; |
| |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.actions.MutableActionGraph.ActionConflictException; |
| import com.google.devtools.build.lib.analysis.ConfiguredTarget; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetFactory; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.Runfiles; |
| import com.google.devtools.build.lib.analysis.RunfilesProvider; |
| import com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget.Mode; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| |
| /** Implementation for the {@code fdo_profile} rule. */ |
| @Immutable |
| public final class FdoProfile implements RuleConfiguredTargetFactory { |
| @Override |
| public ConfiguredTarget create(RuleContext ruleContext) |
| throws RuleErrorException, ActionConflictException { |
| |
| FdoProfileProvider provider; |
| |
| boolean isLabel = ruleContext.attributes().isAttributeValueExplicitlySpecified("profile"); |
| boolean isAbsolutePath = |
| ruleContext.attributes().isAttributeValueExplicitlySpecified("absolute_path_profile"); |
| |
| if (isLabel == isAbsolutePath) { |
| ruleContext.ruleError("exactly one of profile and absolute_path_profile should be specified"); |
| return null; |
| } |
| |
| if (isLabel) { |
| Artifact artifact = ruleContext.getPrerequisiteArtifact("profile", Mode.TARGET); |
| if (!artifact.isSourceArtifact()) { |
| ruleContext.attributeError("profile", " the target is not an input file"); |
| } |
| provider = FdoProfileProvider.fromArtifact(artifact); |
| } else { |
| if (!ruleContext.getFragment(CppConfiguration.class).isFdoAbsolutePathEnabled()) { |
| ruleContext.attributeError( |
| "absolute_path_profile", |
| "this attribute cannot be used when --enable_fdo_profile_absolute_path is false"); |
| return null; |
| } |
| String path = ruleContext.getExpander().expand("absolute_path_profile"); |
| PathFragment fdoPath = PathFragment.create(path); |
| if (!fdoPath.isAbsolute()) { |
| ruleContext.attributeError( |
| "absolute_path_profile", |
| String.format("%s is not an absolute path", fdoPath.getPathString())); |
| } |
| provider = FdoProfileProvider.fromAbsolutePath(fdoPath); |
| } |
| |
| return new RuleConfiguredTargetBuilder(ruleContext) |
| .addNativeDeclaredProvider(provider) |
| .addProvider(RunfilesProvider.simple(Runfiles.EMPTY)) |
| .build(); |
| } |
| } |