Implement the fully link action in the OSX crosstool.

--
MOS_MIGRATED_REVID=130547971

1 files changed, 155 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcVariablesExtension.java b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcVariablesExtension.java
new file mode 100644
index 0000000000..70fc868af9
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcVariablesExtension.java
@@ -0,0 +1,155 @@
+// Copyright 2016 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.objc;
+
+import static com.google.devtools.build.lib.rules.objc.ObjcProvider.IMPORTED_LIBRARY;
+
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.build.lib.actions.Artifact;
+import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode;
+import com.google.devtools.build.lib.analysis.RuleContext;
+import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
+import com.google.devtools.build.lib.rules.apple.AppleConfiguration;
+import com.google.devtools.build.lib.rules.apple.Platform;
+import com.google.devtools.build.lib.rules.cpp.CcToolchainFeatures;
+import com.google.devtools.build.lib.rules.cpp.CcToolchainFeatures.Variables.ValueSequence;
+import com.google.devtools.build.lib.rules.cpp.CcToolchainFeatures.Variables.VariablesExtension;
+
+/** Build variable extensions for templating a toolchain for objc builds. */
+class ObjcVariablesExtension implements VariablesExtension {
+
+  static final String PCH_FILE_VARIABLE_NAME = "pch_file";
+  static final String FRAMEWORKS_VARIABLE_NAME = "framework_paths";
+  static final String VERSION_MIN_VARIABLE_NAME = "version_min";
+  static final String MODULES_MAPS_DIR_NAME = "module_maps_dir";
+  static final String OBJC_MODULE_CACHE_DIR_NAME = "_objc_module_cache";
+  static final String OBJC_MODULE_CACHE_KEY = "modules_cache_path";
+  static final String OBJ_LIST_PATH_VARIABLE_NAME = "obj_list_path";
+  static final String ARCHIVE_PATH_VARIABLE_NAME = "archive_path";
+  static final String FULLY_LINKED_ARCHIVE_PATH_VARIABLE_NAME = "fully_linked_archive_path";
+  static final String OBJC_LIBRARY_EXEC_PATHS_VARIABLE_NAME = "objc_library_exec_paths";
+  static final String CC_LIBRARY_EXEC_PATHS_VARIABLE_NAME = "cc_library_exec_paths";
+  static final String IMPORTED_LIBRARY_EXEC_PATHS_VARIABLE_NAME = "imported_library_exec_paths";
+
+  private final RuleContext ruleContext;
+  private final ObjcProvider objcProvider;
+  private final CompilationArtifacts compilationArtifacts;
+  private final Artifact fullyLinkArchive;
+  private final IntermediateArtifacts intermediateArtifacts;
+
+  private final BuildConfiguration buildConfiguration;
+  private final AppleConfiguration appleConfiguration;
+  private final ObjcConfiguration objcConfiguration;
+
+  public ObjcVariablesExtension(
+      RuleContext ruleContext,
+      ObjcProvider objcProvider,
+      CompilationArtifacts compilationArtifacts,
+      Artifact fullyLinkArchive,
+      IntermediateArtifacts intermediateArtifacts,
+      BuildConfiguration buildConfiguration) {
+    this.ruleContext = ruleContext;
+    this.objcProvider = objcProvider;
+    this.compilationArtifacts = compilationArtifacts;
+    this.fullyLinkArchive = fullyLinkArchive;
+    this.intermediateArtifacts = intermediateArtifacts;
+    this.buildConfiguration = buildConfiguration;
+    this.objcConfiguration = buildConfiguration.getFragment(ObjcConfiguration.class);
+    this.appleConfiguration = buildConfiguration.getFragment(AppleConfiguration.class);
+  }
+
+  @Override
+  public void addVariables(CcToolchainFeatures.Variables.Builder builder) {
+    addPchVariables(builder);
+    addFrameworkVariables(builder);
+    addArchVariables(builder);
+    if (ObjcCommon.shouldUseObjcModules(ruleContext)) {
+      addModuleMapVariables(builder);
+    }
+    if (compilationArtifacts.getArchive().isPresent()) {
+      addArchiveVariables(builder);
+    }
+    addFullyLinkArchiveVariables(builder);
+  }
+
+  private void addPchVariables(CcToolchainFeatures.Variables.Builder builder) {
+    if (ruleContext.getPrerequisiteArtifact("pch", Mode.TARGET) != null) {
+      builder.addVariable(
+          PCH_FILE_VARIABLE_NAME,
+          ruleContext.getPrerequisiteArtifact("pch", Mode.TARGET).getExecPathString());
+    }
+  }
+
+  private void addFrameworkVariables(CcToolchainFeatures.Variables.Builder builder) {
+    ValueSequence.Builder frameworkSequence = new ValueSequence.Builder();
+    for (String framework :
+        CompilationSupport.commonFrameworkNames(objcProvider, appleConfiguration)) {
+      frameworkSequence.addValue(framework);
+    }
+    builder.addSequence(FRAMEWORKS_VARIABLE_NAME, frameworkSequence.build());
+  }
+
+  private void addModuleMapVariables(CcToolchainFeatures.Variables.Builder builder) {
+    builder.addVariable(
+        MODULES_MAPS_DIR_NAME,
+        intermediateArtifacts
+            .moduleMap()
+            .getArtifact()
+            .getExecPath()
+            .getParentDirectory()
+            .toString());
+    builder.addVariable(
+        OBJC_MODULE_CACHE_KEY,
+        buildConfiguration.getGenfilesFragment() + "/" + OBJC_MODULE_CACHE_DIR_NAME);
+  }
+
+  private void addArchVariables(CcToolchainFeatures.Variables.Builder builder) {
+    Platform platform = appleConfiguration.getSingleArchPlatform();
+    switch (platform.getType()) {
+      case IOS:
+        builder.addVariable(VERSION_MIN_VARIABLE_NAME, objcConfiguration.getMinimumOs().toString());
+        break;
+      case WATCHOS:
+        builder.addVariable(
+            VERSION_MIN_VARIABLE_NAME,
+            appleConfiguration.getSdkVersionForPlatform(platform).toString());
+        break;
+      default:
+        throw new IllegalArgumentException("Unhandled platform: " + platform);
+    }
+  }
+
+  private void addArchiveVariables(CcToolchainFeatures.Variables.Builder builder) {
+    builder.addVariable(
+        OBJ_LIST_PATH_VARIABLE_NAME,
+        ObjcRuleClasses.intermediateArtifacts(ruleContext).archiveObjList().getExecPathString());
+    builder.addVariable(
+        ARCHIVE_PATH_VARIABLE_NAME, compilationArtifacts.getArchive().get().getExecPathString());
+  }
+
+  private void addFullyLinkArchiveVariables(CcToolchainFeatures.Variables.Builder builder) {
+    builder.addVariable(
+        FULLY_LINKED_ARCHIVE_PATH_VARIABLE_NAME, fullyLinkArchive.getExecPathString());
+    builder.addSequenceVariable(
+        OBJC_LIBRARY_EXEC_PATHS_VARIABLE_NAME,
+        ImmutableList.copyOf(Artifact.toExecPaths(objcProvider.getObjcLibraries())));
+    builder.addSequenceVariable(
+        CC_LIBRARY_EXEC_PATHS_VARIABLE_NAME,
+        ImmutableList.copyOf(Artifact.toExecPaths(objcProvider.getCcLibraries())));
+    builder.addSequenceVariable(
+        IMPORTED_LIBRARY_EXEC_PATHS_VARIABLE_NAME,
+        ImmutableList.copyOf(Artifact.toExecPaths(objcProvider.get(IMPORTED_LIBRARY))));
+  }
+}