diff --git a/vndk/tools/header-checker/Android.bp b/vndk/tools/header-checker/Android.bp
index aff2d0554..65e248497 100644
--- a/vndk/tools/header-checker/Android.bp
+++ b/vndk/tools/header-checker/Android.bp
@@ -165,6 +165,7 @@ cc_library_host_static {
         "src/repr/symbol/so_file_parser.cpp",
         "src/repr/symbol/version_script_parser.cpp",
         "src/utils/api_level.cpp",
+        "src/utils/command_line_utils.cpp",
         "src/utils/config_file.cpp",
         "src/utils/collect_exported_headers.cpp",
         "src/utils/string_utils.cpp",
diff --git a/vndk/tools/header-checker/src/dumper/header_checker.cpp b/vndk/tools/header-checker/src/dumper/header_checker.cpp
index 25d87fe8c..f856f2c2c 100644
--- a/vndk/tools/header-checker/src/dumper/header_checker.cpp
+++ b/vndk/tools/header-checker/src/dumper/header_checker.cpp
@@ -16,6 +16,7 @@
 
 #include "dumper/fixed_argv.h"
 #include "dumper/frontend_action_factory.h"
+#include "utils/command_line_utils.h"
 #include "utils/header_abi_util.h"
 
 #include <clang/Frontend/FrontendActions.h>
@@ -40,6 +41,7 @@ using header_checker::dumper::HeaderCheckerFrontendActionFactory;
 using header_checker::dumper::HeaderCheckerOptions;
 using header_checker::repr::TextFormatIR;
 using header_checker::utils::CollectAllExportedHeaders;
+using header_checker::utils::HideIrrelevantCommandLineOptions;
 using header_checker::utils::RealPath;
 
 
@@ -83,22 +85,8 @@ static llvm::cl::opt<TextFormatIR> output_format(
     llvm::cl::init(TextFormatIR::Json),
     llvm::cl::cat(header_checker_category));
 
-// Hide irrelevant command line options defined in LLVM libraries.
-static void HideIrrelevantCommandLineOptions() {
-  llvm::StringMap<llvm::cl::Option *> &map = llvm::cl::getRegisteredOptions();
-  for (llvm::StringMapEntry<llvm::cl::Option *> &p : map) {
-    if (p.second->Category == &header_checker_category) {
-      continue;
-    }
-    if (p.first().startswith("help")) {
-      continue;
-    }
-    p.second->setHiddenFlag(llvm::cl::Hidden);
-  }
-}
-
 int main(int argc, const char **argv) {
-  HideIrrelevantCommandLineOptions();
+  HideIrrelevantCommandLineOptions(header_checker_category);
 
   // Tweak argc and argv to workaround clang version mismatches.
   FixedArgv fixed_argv(argc, argv);
diff --git a/vndk/tools/header-checker/src/linker/header_abi_linker.cpp b/vndk/tools/header-checker/src/linker/header_abi_linker.cpp
index 49d9cd04e..618c2092b 100644
--- a/vndk/tools/header-checker/src/linker/header_abi_linker.cpp
+++ b/vndk/tools/header-checker/src/linker/header_abi_linker.cpp
@@ -17,6 +17,7 @@
 #include "repr/ir_reader.h"
 #include "repr/symbol/so_file_parser.h"
 #include "repr/symbol/version_script_parser.h"
+#include "utils/command_line_utils.h"
 #include "utils/header_abi_util.h"
 
 #include <llvm/Support/CommandLine.h>
@@ -37,6 +38,7 @@
 using namespace header_checker;
 using header_checker::repr::TextFormatIR;
 using header_checker::utils::CollectAllExportedHeaders;
+using header_checker::utils::HideIrrelevantCommandLineOptions;
 
 
 static constexpr std::size_t kSourcesPerBatchThread = 7;
@@ -446,22 +448,8 @@ bool HeaderAbiLinker::ReadExportedSymbolsFromSharedObjectFile() {
   return true;
 }
 
-// Hide irrelevant command line options defined in LLVM libraries.
-static void HideIrrelevantCommandLineOptions() {
-  llvm::StringMap<llvm::cl::Option *> &map = llvm::cl::getRegisteredOptions();
-  for (llvm::StringMapEntry<llvm::cl::Option *> &p : map) {
-    if (p.second->Category == &header_linker_category) {
-      continue;
-    }
-    if (p.first().startswith("help")) {
-      continue;
-    }
-    p.second->setHiddenFlag(llvm::cl::Hidden);
-  }
-}
-
 int main(int argc, const char **argv) {
-  HideIrrelevantCommandLineOptions();
+  HideIrrelevantCommandLineOptions(header_linker_category);
   llvm::cl::ParseCommandLineOptions(argc, argv, "header-linker");
 
   if (so_file.empty() && version_script.empty()) {
diff --git a/vndk/tools/header-checker/src/utils/command_line_utils.cpp b/vndk/tools/header-checker/src/utils/command_line_utils.cpp
new file mode 100644
index 000000000..be8cb5f73
--- /dev/null
+++ b/vndk/tools/header-checker/src/utils/command_line_utils.cpp
@@ -0,0 +1,52 @@
+// Copyright (C) 2019 The Android Open Source Project
+//
+// 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.
+
+#include "command_line_utils.h"
+
+#include <llvm/ADT/SmallVector.h>
+#include <llvm/ADT/StringMap.h>
+#include <llvm/Support/CommandLine.h>
+
+#include <algorithm>
+
+namespace header_checker {
+namespace utils {
+
+
+static bool IsOptionInCategory(const llvm::cl::Option &option,
+                               const llvm::cl::OptionCategory &category) {
+  const llvm::SmallVectorImpl<llvm::cl::OptionCategory *> &categories =
+      option.Categories;
+  auto iter = std::find(categories.begin(), categories.end(), &category);
+  return iter != categories.end();
+}
+
+
+void HideIrrelevantCommandLineOptions(
+    const llvm::cl::OptionCategory &category) {
+  llvm::StringMap<llvm::cl::Option *> &map = llvm::cl::getRegisteredOptions();
+  for (llvm::StringMapEntry<llvm::cl::Option *> &p : map) {
+    if (IsOptionInCategory(*p.second, category)) {
+      continue;
+    }
+    if (p.first().startswith("help")) {
+      continue;
+    }
+    p.second->setHiddenFlag(llvm::cl::Hidden);
+  }
+}
+
+
+}  // namespace utils
+}  // namespace header_checker
diff --git a/vndk/tools/header-checker/src/utils/command_line_utils.h b/vndk/tools/header-checker/src/utils/command_line_utils.h
new file mode 100644
index 000000000..d0bd48414
--- /dev/null
+++ b/vndk/tools/header-checker/src/utils/command_line_utils.h
@@ -0,0 +1,32 @@
+// Copyright (C) 2019 The Android Open Source Project
+//
+// 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.
+
+#ifndef COMMAND_LINE_UTILS_H_
+#define COMMAND_LINE_UTILS_H_
+
+#include <llvm/Support/CommandLine.h>
+
+
+namespace header_checker {
+namespace utils {
+
+
+// Hide irrelevant command line options defined in LLVM libraries.
+void HideIrrelevantCommandLineOptions(const llvm::cl::OptionCategory &category);
+
+
+}  // namespace utils
+}  // namespace header_checker
+
+#endif  // COMMAND_LINE_UTILS_H_