diff --git a/src/main/java/com/google/devtools/build/lib/analysis/test/CoverageCommon.java b/src/main/java/com/google/devtools/build/lib/analysis/test/CoverageCommon.java
index 503cc825913a5f..73260031d8a9a6 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/test/CoverageCommon.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/test/CoverageCommon.java
@@ -54,6 +54,7 @@ public InstrumentedFilesInfoApi instrumentedFilesInfo(
       Object supportFiles, // Depset or Sequence of <Artifact>
       Dict<?, ?> environment, // <String, String>
       Object extensions,
+      Sequence<?> metadataFiles, // Sequence<Artifact>
       StarlarkThread thread)
       throws EvalException, TypeException {
     List<String> extensionsList =
@@ -81,7 +82,8 @@ public InstrumentedFilesInfoApi instrumentedFilesInfo(
         Sequence.cast(dependencyAttributes, String.class, "dependency_attributes"),
         supportFilesBuilder.build(),
         NestedSetBuilder.wrap(Order.COMPILE_ORDER, environmentPairs),
-        extensionsList);
+        extensionsList,
+        Sequence.cast(metadataFiles, Artifact.class, "metadata_files"));
   }
 
   /**
@@ -109,7 +111,8 @@ public static InstrumentedFilesInfo createInstrumentedFilesInfo(
         dependencyAttributes,
         NestedSetBuilder.emptySet(Order.STABLE_ORDER),
         NestedSetBuilder.emptySet(Order.STABLE_ORDER),
-        extensions);
+        extensions,
+        null);
   }
 
   private static InstrumentedFilesInfo createInstrumentedFilesInfo(
@@ -118,7 +121,8 @@ private static InstrumentedFilesInfo createInstrumentedFilesInfo(
       List<String> dependencyAttributes,
       NestedSet<Artifact> supportFiles,
       NestedSet<Pair<String, String>> environment,
-      @Nullable List<String> extensions) {
+      @Nullable List<String> extensions,
+      @Nullable List<Artifact> metadataFiles) {
     FileTypeSet fileTypeSet = FileTypeSet.ANY_FILE;
     if (extensions != null) {
       if (extensions.isEmpty()) {
@@ -137,11 +141,12 @@ private static InstrumentedFilesInfo createInstrumentedFilesInfo(
         ruleContext,
         instrumentationSpec,
         InstrumentedFilesCollector.NO_METADATA_COLLECTOR,
-        /* rootFiles = */ ImmutableList.of(),
-        /* coverageSupportFiles = */ supportFiles,
-        /* coverageEnvironment = */ environment,
-        /* withBaselineCoverage = */ !TargetUtils.isTestRule(ruleContext.getTarget()),
-        /* reportedToActualSources= */ NestedSetBuilder.create(Order.STABLE_ORDER));
+        /* rootFiles= */ ImmutableList.of(),
+        /* coverageSupportFiles= */ supportFiles,
+        /* coverageEnvironment= */ environment,
+        /* withBaselineCoverage= */ !TargetUtils.isTestRule(ruleContext.getTarget()),
+        /* reportedToActualSources= */ NestedSetBuilder.create(Order.STABLE_ORDER),
+        /* additionalMetadata= */ metadataFiles);
   }
 
   @Override
diff --git a/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/test/CoverageCommonApi.java b/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/test/CoverageCommonApi.java
index a129285d3778b9..b66d3527d25130 100644
--- a/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/test/CoverageCommonApi.java
+++ b/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/test/CoverageCommonApi.java
@@ -93,6 +93,17 @@ public interface CoverageCommonApi<
             positional = false,
             named = true,
             defaultValue = "None"),
+        @Param(
+            name = "metadata_files",
+            doc =
+                "Additional files required to generate coverage LCOV files after code execution."
+                    + " e.g. .gcno files for C++.",
+            named = true,
+            positional = false,
+            defaultValue = "[]",
+            allowedTypes = {
+              @ParamType(type = Sequence.class, generic1 = FileApi.class),
+            })
       },
       useStarlarkThread = true)
   InstrumentedFilesInfoApi instrumentedFilesInfo(
@@ -102,6 +113,7 @@ InstrumentedFilesInfoApi instrumentedFilesInfo(
       Object supportFiles, // Sequence or Depset of <FileApi> expected
       Dict<?, ?> environment, // <String, String>
       Object extensions,
+      Sequence<?> metadataFiles,
       StarlarkThread thread)
       throws EvalException, TypeException;
 }
diff --git a/src/test/java/com/google/devtools/build/lib/starlark/StarlarkIntegrationTest.java b/src/test/java/com/google/devtools/build/lib/starlark/StarlarkIntegrationTest.java
index 49eef9661a1cad..3c3c8493863db6 100644
--- a/src/test/java/com/google/devtools/build/lib/starlark/StarlarkIntegrationTest.java
+++ b/src/test/java/com/google/devtools/build/lib/starlark/StarlarkIntegrationTest.java
@@ -947,6 +947,8 @@ public void testInstrumentedFilesInfo_coverageEnabled() throws Exception {
         "load('//myinfo:myinfo.bzl', 'MyInfo')",
         "",
         "def custom_rule_impl(ctx):",
+        "    metadata = ctx.actions.declare_file(ctx.label.name + '.metadata')",
+        "    ctx.actions.write(metadata, '')",
         "    return [",
         "        coverage_common.instrumented_files_info(",
         "            ctx,",
@@ -966,6 +968,7 @@ public void testInstrumentedFilesInfo_coverageEnabled() throws Exception {
         // Missing attrs are ignored
         "                'missing_dep_attr',",
         "            ],",
+        "            metadata_files = [metadata],",
         "        ),",
         "    ]",
         "",
@@ -1032,7 +1035,7 @@ public void testInstrumentedFilesInfo_coverageEnabled() throws Exception {
     assertThat(
             ActionsTestUtil.baseArtifactNames(
                 ((Depset) myInfo.getValue("metadata_files")).getSet(Artifact.class)))
-        .containsExactly("label_dep.gcno", "label_list_dep.gcno", "dict_dep.gcno");
+        .containsExactly("label_dep.gcno", "label_list_dep.gcno", "dict_dep.gcno", "cr.metadata");
     ConfiguredTarget customRule = getConfiguredTarget("//test/starlark:cr");
     assertThat(
             ActionsTestUtil.baseArtifactNames(