diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a4d5346..2df408e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,8 +19,9 @@ jobs:
       - run: echo "::add-matcher::.github/workflows/gcc_matcher.json"
       - uses: carlosperate/arm-none-eabi-gcc-action@v1
       - run: pip install elf-size-analyze
+      - run: sudo apt-get update && sudo apt-get install binutils-dev
       - if: matrix.compiler == 'clang'
-        run: sudo apt-get update && sudo apt-get install llvm
+        run: sudo apt-get install llvm
       - uses: actions/cache@v3
         with:
           path: target/_deps
diff --git a/tools/test_linker_plugin.cc b/tools/test_linker_plugin.cc
index 7c518f0..d7f9dee 100644
--- a/tools/test_linker_plugin.cc
+++ b/tools/test_linker_plugin.cc
@@ -15,47 +15,43 @@
 
 // TODO check status
 
-static const struct {
-  ld_plugin_tag num;
-  const char* name;
-} LD_PLUGIN_TAG_NAMES[] = {
-  { LDPT_NULL, "LDPT_NULL" },
-  { LDPT_NULL, "LDPT_NULL" },
-  { LDPT_API_VERSION, "LDPT_API_VERSION" },
-  { LDPT_GOLD_VERSION, "LDPT_GOLD_VERSION" },
-  { LDPT_LINKER_OUTPUT, "LDPT_LINKER_OUTPUT" },
-  { LDPT_OPTION, "LDPT_OPTION" },
-  { LDPT_REGISTER_CLAIM_FILE_HOOK, "LDPT_REGISTER_CLAIM_FILE_HOOK" },
-  { LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK, "LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK" },
-  { LDPT_REGISTER_CLEANUP_HOOK, "LDPT_REGISTER_CLEANUP_HOOK" },
-  { LDPT_ADD_SYMBOLS, "LDPT_ADD_SYMBOLS" },
-  { LDPT_GET_SYMBOLS, "LDPT_GET_SYMBOLS" },
-  { LDPT_ADD_INPUT_FILE, "LDPT_ADD_INPUT_FILE" },
-  { LDPT_MESSAGE, "LDPT_MESSAGE" },
-  { LDPT_GET_INPUT_FILE, "LDPT_GET_INPUT_FILE" },
-  { LDPT_RELEASE_INPUT_FILE, "LDPT_RELEASE_INPUT_FILE" },
-  { LDPT_ADD_INPUT_LIBRARY, "LDPT_ADD_INPUT_LIBRARY" },
-  { LDPT_OUTPUT_NAME, "LDPT_OUTPUT_NAME" },
-  { LDPT_SET_EXTRA_LIBRARY_PATH, "LDPT_SET_EXTRA_LIBRARY_PATH" },
-  { LDPT_GNU_LD_VERSION, "LDPT_GNU_LD_VERSION" },
-  { LDPT_GET_VIEW, "LDPT_GET_VIEW" },
-  { LDPT_GET_INPUT_SECTION_COUNT, "LDPT_GET_INPUT_SECTION_COUNT" },
-  { LDPT_GET_INPUT_SECTION_TYPE, "LDPT_GET_INPUT_SECTION_TYPE" },
-  { LDPT_GET_INPUT_SECTION_NAME, "LDPT_GET_INPUT_SECTION_NAME" },
-  { LDPT_GET_INPUT_SECTION_CONTENTS, "LDPT_GET_INPUT_SECTION_CONTENTS" },
-  { LDPT_UPDATE_SECTION_ORDER, "LDPT_UPDATE_SECTION_ORDER" },
-  { LDPT_ALLOW_SECTION_ORDERING, "LDPT_ALLOW_SECTION_ORDERING" },
-  { LDPT_GET_SYMBOLS_V2, "LDPT_GET_SYMBOLS_V2" },
-  { LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS, "LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS" },
-  { LDPT_UNIQUE_SEGMENT_FOR_SECTIONS, "LDPT_UNIQUE_SEGMENT_FOR_SECTIONS" },
-  { LDPT_GET_SYMBOLS_V3, "LDPT_GET_SYMBOLS_V3" },
-  { LDPT_GET_INPUT_SECTION_ALIGNMENT, "LDPT_GET_INPUT_SECTION_ALIGNMENT" },
-  { LDPT_GET_INPUT_SECTION_SIZE, "LDPT_GET_INPUT_SECTION_SIZE" },
-  { LDPT_REGISTER_NEW_INPUT_HOOK, "LDPT_REGISTER_NEW_INPUT_HOOK" },
-  { LDPT_GET_WRAP_SYMBOLS, "LDPT_GET_WRAP_SYMBOLS" },
-  { LDPT_ADD_SYMBOLS_V2, "LDPT_ADD_SYMBOLS_V2" },
-  { LDPT_GET_API_VERSION, "LDPT_GET_API_VERSION" },
-  { LDPT_REGISTER_CLAIM_FILE_HOOK_V2, "LDPT_REGISTER_CLAIM_FILE_HOOK_V2" },
+static const char* const LD_PLUGIN_TAG_NAMES[] = {
+  "LDPT_NULL",
+  "LDPT_API_VERSION",
+  "LDPT_GOLD_VERSION",
+  "LDPT_LINKER_OUTPUT",
+  "LDPT_OPTION",
+  "LDPT_REGISTER_CLAIM_FILE_HOOK",
+  "LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK",
+  "LDPT_REGISTER_CLEANUP_HOOK",
+  "LDPT_ADD_SYMBOLS",
+  "LDPT_GET_SYMBOLS",
+  "LDPT_ADD_INPUT_FILE",
+  "LDPT_MESSAGE",
+  "LDPT_GET_INPUT_FILE",
+  "LDPT_RELEASE_INPUT_FILE",
+  "LDPT_ADD_INPUT_LIBRARY",
+  "LDPT_OUTPUT_NAME",
+  "LDPT_SET_EXTRA_LIBRARY_PATH",
+  "LDPT_GNU_LD_VERSION",
+  "LDPT_GET_VIEW",
+  "LDPT_GET_INPUT_SECTION_COUNT",
+  "LDPT_GET_INPUT_SECTION_TYPE",
+  "LDPT_GET_INPUT_SECTION_NAME",
+  "LDPT_GET_INPUT_SECTION_CONTENTS",
+  "LDPT_UPDATE_SECTION_ORDER",
+  "LDPT_ALLOW_SECTION_ORDERING",
+  "LDPT_GET_SYMBOLS_V2",
+  "LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS",
+  "LDPT_UNIQUE_SEGMENT_FOR_SECTIONS",
+  "LDPT_GET_SYMBOLS_V3",
+  "LDPT_GET_INPUT_SECTION_ALIGNMENT",
+  "LDPT_GET_INPUT_SECTION_SIZE",
+  "LDPT_REGISTER_NEW_INPUT_HOOK",
+  "LDPT_GET_WRAP_SYMBOLS",
+  "LDPT_ADD_SYMBOLS_V2",
+  "LDPT_GET_API_VERSION",
+  "LDPT_REGISTER_CLAIM_FILE_HOOK_V2",
 };
 
 static struct {
@@ -107,19 +103,15 @@ ld_plugin_status onload(ld_plugin_tv* tv) {
   LOG("hi!");
 
   for (tv = first_tv; tv->tv_tag != 0; tv++) {
-    for (const auto& tag : LD_PLUGIN_TAG_NAMES) {
-      if (tag.num == tv->tv_tag) {
-        switch (tv->tv_tag) {
-          case LDPT_NULL:
-          case LDPT_API_VERSION:
-          case LDPT_GNU_LD_VERSION:
-          case LDPT_LINKER_OUTPUT: LOG("%s(%d)", tag.name, tv->tv_u.tv_val); break;
-          case LDPT_OPTION:
-          case LDPT_OUTPUT_NAME: LOG("%s(%s)", tag.name, tv->tv_u.tv_string); break;
-          default: LOG("%s(%p)", tag.name, (void*)tv->tv_u.tv_string); break;
-        }
-        break;
-      }
+    const char* name = LD_PLUGIN_TAG_NAMES[tv->tv_tag];
+    switch (tv->tv_tag) {
+      case LDPT_NULL:
+      case LDPT_API_VERSION:
+      case LDPT_GNU_LD_VERSION:
+      case LDPT_LINKER_OUTPUT: LOG("%s(%d)", name, tv->tv_u.tv_val); break;
+      case LDPT_OPTION:
+      case LDPT_OUTPUT_NAME: LOG("%s(%s)", name, tv->tv_u.tv_string); break;
+      default: LOG("%s(%p)", name, (void*)tv->tv_u.tv_string); break;
     }
   }