Add CcSysrootAliasRule

RELNOTES:none
PiperOrigin-RevId: 198364550

1 files changed, 36 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CcLibcTopAlias.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CcLibcTopAlias.java
new file mode 100644
index 0000000000..14b866b982
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CcLibcTopAlias.java
@@ -0,0 +1,36 @@
+// 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;
+
+import com.google.devtools.build.lib.packages.Attribute.LabelLateBoundDefault;
+import com.google.devtools.build.lib.rules.LateBoundAlias.CommonAliasRule;
+
+/** Implementation of the {@code cc_libc_top_alias} rule. */
+public class CcLibcTopAlias extends CommonAliasRule {
+
+  public CcLibcTopAlias() {
+    super(
+        "cc_libc_top_alias",
+        env -> CcLibcTopAlias.getSysrootAttribute(),
+        CppConfiguration.class);
+  }
+
+  private static LabelLateBoundDefault<CppConfiguration> getSysrootAttribute() {
+    return LabelLateBoundDefault.fromTargetConfiguration(
+        CppConfiguration.class,
+        null,
+        (rules, attributes, cppConfig) -> cppConfig.getSysrootLabel());
+  }
+}