Introduce linkmap support for --experimental_objc_crosstool=all

PiperOrigin-RevId: 153161442

1 files changed, 13 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/CrosstoolCompilationSupport.java b/src/main/java/com/google/devtools/build/lib/rules/objc/CrosstoolCompilationSupport.java
index e1181495c8..773fb33c46 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/objc/CrosstoolCompilationSupport.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/objc/CrosstoolCompilationSupport.java
@@ -100,6 +100,8 @@ public class CrosstoolCompilationSupport extends CompilationSupport {
    */
   private static final String NO_GENERATE_DEBUG_SYMBOLS_FEATURE_NAME = "no_generate_debug_symbols";
 
+  private static final String GENERATE_LINKMAP_FEATURE_NAME = "generate_linkmap";
+
   private static final ImmutableList<String> ACTIVATED_ACTIONS =
       ImmutableList.of(
           "objc-compile",
@@ -306,6 +308,14 @@ public class CrosstoolCompilationSupport extends CompilationSupport {
       executableLinkAction.addActionOutput(dsymBundleZip);
     }
 
+    if (objcConfiguration.generateLinkmap()) {
+      Artifact linkmap = intermediateArtifacts.linkmap();
+      extensionBuilder
+          .setLinkmap(linkmap)
+          .addVariableCategory(VariableCategory.LINKMAP_VARIABLES);
+      executableLinkAction.addActionOutput(linkmap);
+    }
+
     executableLinkAction.addVariablesExtension(extensionBuilder.build());
     ruleContext.registerAction(executableLinkAction.build());
 
@@ -447,6 +457,9 @@ public class CrosstoolCompilationSupport extends CompilationSupport {
     } else {
       activatedCrosstoolSelectables.add(NO_GENERATE_DEBUG_SYMBOLS_FEATURE_NAME);
     }
+    if (configuration.getFragment(ObjcConfiguration.class).generateLinkmap()) {
+      activatedCrosstoolSelectables.add(GENERATE_LINKMAP_FEATURE_NAME);
+    }
 
     activatedCrosstoolSelectables.addAll(ruleContext.getFeatures());
     return configuration