diff --git a/.github/workflows/zjit-ubuntu.yml b/.github/workflows/zjit-ubuntu.yml
index a30ff1df88fdd9..02afda470aec47 100644
--- a/.github/workflows/zjit-ubuntu.yml
+++ b/.github/workflows/zjit-ubuntu.yml
@@ -69,8 +69,9 @@ jobs:
 
           - test_task: 'zjit-bindgen'
             hint: 'To fix: use patch in logs'
-            configure: '--enable-zjit=dev --with-gcc=clang-14'
-            libclang_path: '/usr/lib/llvm-14/lib/libclang.so.1'
+            configure: '--enable-zjit=dev --with-gcc=clang-16'
+            clang_path: '/usr/bin/clang-16'
+            runs-on: 'ubuntu-24.04' # for clang-16
 
           - test_task: 'test-bundled-gems'
             configure: '--enable-zjit=dev'
@@ -87,7 +88,7 @@ jobs:
       RUST_BACKTRACE: 1
       ZJIT_RB_BUG: 1
 
-    runs-on: ubuntu-22.04
+    runs-on: ${{ matrix.runs-on || 'ubuntu-22.04' }}
 
     if: >-
       ${{!(false
@@ -175,7 +176,7 @@ jobs:
           PRECHECK_BUNDLED_GEMS: 'no'
           SYNTAX_SUGGEST_TIMEOUT: '5'
           ZJIT_BINDGEN_DIFF_OPTS: '--exit-code'
-          LIBCLANG_PATH: ${{ matrix.libclang_path }}
+          CLANG_PATH: ${{ matrix.clang_path }}
           TESTS: ${{ matrix.test_all_opts }}
         continue-on-error: ${{ matrix.continue-on-test_task || false }}
 
diff --git a/ext/-test-/asan/asan.c b/ext/-test-/asan/asan.c
deleted file mode 100644
index 45b6253fdac8c8..00000000000000
--- a/ext/-test-/asan/asan.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include "ruby/ruby.h"
-
-static VALUE
-asan_enabled_p(VALUE self)
-{
-#if defined(__has_feature)
-    /* clang uses __has_feature for determining asan */
-    return __has_feature(address_sanitizer) ? Qtrue : Qfalse;
-#elif defined(__SANITIZE_ADDRESS__)
-    /* GCC sets __SANITIZE_ADDRESS__ for determining asan */
-    return Qtrue;
-#else
-    return Qfalse;
-#endif
-}
-
-void
-Init_asan(void)
-{
-    VALUE m = rb_define_module("Test");
-    VALUE c = rb_define_class_under(m, "ASAN", rb_cObject);
-    rb_define_singleton_method(c, "enabled?", asan_enabled_p, 0);
-}
-
diff --git a/ext/-test-/asan/depend b/ext/-test-/asan/depend
deleted file mode 100644
index 93cdc739ec63b7..00000000000000
--- a/ext/-test-/asan/depend
+++ /dev/null
@@ -1,162 +0,0 @@
-# AUTOGENERATED DEPENDENCIES START
-asan.o: $(RUBY_EXTCONF_H)
-asan.o: $(arch_hdrdir)/ruby/config.h
-asan.o: $(hdrdir)/ruby/assert.h
-asan.o: $(hdrdir)/ruby/backward.h
-asan.o: $(hdrdir)/ruby/backward/2/assume.h
-asan.o: $(hdrdir)/ruby/backward/2/attributes.h
-asan.o: $(hdrdir)/ruby/backward/2/bool.h
-asan.o: $(hdrdir)/ruby/backward/2/inttypes.h
-asan.o: $(hdrdir)/ruby/backward/2/limits.h
-asan.o: $(hdrdir)/ruby/backward/2/long_long.h
-asan.o: $(hdrdir)/ruby/backward/2/stdalign.h
-asan.o: $(hdrdir)/ruby/backward/2/stdarg.h
-asan.o: $(hdrdir)/ruby/defines.h
-asan.o: $(hdrdir)/ruby/intern.h
-asan.o: $(hdrdir)/ruby/internal/abi.h
-asan.o: $(hdrdir)/ruby/internal/anyargs.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/char.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/double.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/fixnum.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/gid_t.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/int.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/intptr_t.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/long.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/long_long.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/mode_t.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/off_t.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/pid_t.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/short.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/size_t.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/st_data_t.h
-asan.o: $(hdrdir)/ruby/internal/arithmetic/uid_t.h
-asan.o: $(hdrdir)/ruby/internal/assume.h
-asan.o: $(hdrdir)/ruby/internal/attr/alloc_size.h
-asan.o: $(hdrdir)/ruby/internal/attr/artificial.h
-asan.o: $(hdrdir)/ruby/internal/attr/cold.h
-asan.o: $(hdrdir)/ruby/internal/attr/const.h
-asan.o: $(hdrdir)/ruby/internal/attr/constexpr.h
-asan.o: $(hdrdir)/ruby/internal/attr/deprecated.h
-asan.o: $(hdrdir)/ruby/internal/attr/diagnose_if.h
-asan.o: $(hdrdir)/ruby/internal/attr/enum_extensibility.h
-asan.o: $(hdrdir)/ruby/internal/attr/error.h
-asan.o: $(hdrdir)/ruby/internal/attr/flag_enum.h
-asan.o: $(hdrdir)/ruby/internal/attr/forceinline.h
-asan.o: $(hdrdir)/ruby/internal/attr/format.h
-asan.o: $(hdrdir)/ruby/internal/attr/maybe_unused.h
-asan.o: $(hdrdir)/ruby/internal/attr/noalias.h
-asan.o: $(hdrdir)/ruby/internal/attr/nodiscard.h
-asan.o: $(hdrdir)/ruby/internal/attr/noexcept.h
-asan.o: $(hdrdir)/ruby/internal/attr/noinline.h
-asan.o: $(hdrdir)/ruby/internal/attr/nonnull.h
-asan.o: $(hdrdir)/ruby/internal/attr/noreturn.h
-asan.o: $(hdrdir)/ruby/internal/attr/packed_struct.h
-asan.o: $(hdrdir)/ruby/internal/attr/pure.h
-asan.o: $(hdrdir)/ruby/internal/attr/restrict.h
-asan.o: $(hdrdir)/ruby/internal/attr/returns_nonnull.h
-asan.o: $(hdrdir)/ruby/internal/attr/warning.h
-asan.o: $(hdrdir)/ruby/internal/attr/weakref.h
-asan.o: $(hdrdir)/ruby/internal/cast.h
-asan.o: $(hdrdir)/ruby/internal/compiler_is.h
-asan.o: $(hdrdir)/ruby/internal/compiler_is/apple.h
-asan.o: $(hdrdir)/ruby/internal/compiler_is/clang.h
-asan.o: $(hdrdir)/ruby/internal/compiler_is/gcc.h
-asan.o: $(hdrdir)/ruby/internal/compiler_is/intel.h
-asan.o: $(hdrdir)/ruby/internal/compiler_is/msvc.h
-asan.o: $(hdrdir)/ruby/internal/compiler_is/sunpro.h
-asan.o: $(hdrdir)/ruby/internal/compiler_since.h
-asan.o: $(hdrdir)/ruby/internal/config.h
-asan.o: $(hdrdir)/ruby/internal/constant_p.h
-asan.o: $(hdrdir)/ruby/internal/core.h
-asan.o: $(hdrdir)/ruby/internal/core/rarray.h
-asan.o: $(hdrdir)/ruby/internal/core/rbasic.h
-asan.o: $(hdrdir)/ruby/internal/core/rbignum.h
-asan.o: $(hdrdir)/ruby/internal/core/rclass.h
-asan.o: $(hdrdir)/ruby/internal/core/rdata.h
-asan.o: $(hdrdir)/ruby/internal/core/rfile.h
-asan.o: $(hdrdir)/ruby/internal/core/rhash.h
-asan.o: $(hdrdir)/ruby/internal/core/robject.h
-asan.o: $(hdrdir)/ruby/internal/core/rregexp.h
-asan.o: $(hdrdir)/ruby/internal/core/rstring.h
-asan.o: $(hdrdir)/ruby/internal/core/rstruct.h
-asan.o: $(hdrdir)/ruby/internal/core/rtypeddata.h
-asan.o: $(hdrdir)/ruby/internal/ctype.h
-asan.o: $(hdrdir)/ruby/internal/dllexport.h
-asan.o: $(hdrdir)/ruby/internal/dosish.h
-asan.o: $(hdrdir)/ruby/internal/error.h
-asan.o: $(hdrdir)/ruby/internal/eval.h
-asan.o: $(hdrdir)/ruby/internal/event.h
-asan.o: $(hdrdir)/ruby/internal/fl_type.h
-asan.o: $(hdrdir)/ruby/internal/gc.h
-asan.o: $(hdrdir)/ruby/internal/glob.h
-asan.o: $(hdrdir)/ruby/internal/globals.h
-asan.o: $(hdrdir)/ruby/internal/has/attribute.h
-asan.o: $(hdrdir)/ruby/internal/has/builtin.h
-asan.o: $(hdrdir)/ruby/internal/has/c_attribute.h
-asan.o: $(hdrdir)/ruby/internal/has/cpp_attribute.h
-asan.o: $(hdrdir)/ruby/internal/has/declspec_attribute.h
-asan.o: $(hdrdir)/ruby/internal/has/extension.h
-asan.o: $(hdrdir)/ruby/internal/has/feature.h
-asan.o: $(hdrdir)/ruby/internal/has/warning.h
-asan.o: $(hdrdir)/ruby/internal/intern/array.h
-asan.o: $(hdrdir)/ruby/internal/intern/bignum.h
-asan.o: $(hdrdir)/ruby/internal/intern/class.h
-asan.o: $(hdrdir)/ruby/internal/intern/compar.h
-asan.o: $(hdrdir)/ruby/internal/intern/complex.h
-asan.o: $(hdrdir)/ruby/internal/intern/cont.h
-asan.o: $(hdrdir)/ruby/internal/intern/dir.h
-asan.o: $(hdrdir)/ruby/internal/intern/enum.h
-asan.o: $(hdrdir)/ruby/internal/intern/enumerator.h
-asan.o: $(hdrdir)/ruby/internal/intern/error.h
-asan.o: $(hdrdir)/ruby/internal/intern/eval.h
-asan.o: $(hdrdir)/ruby/internal/intern/file.h
-asan.o: $(hdrdir)/ruby/internal/intern/hash.h
-asan.o: $(hdrdir)/ruby/internal/intern/io.h
-asan.o: $(hdrdir)/ruby/internal/intern/load.h
-asan.o: $(hdrdir)/ruby/internal/intern/marshal.h
-asan.o: $(hdrdir)/ruby/internal/intern/numeric.h
-asan.o: $(hdrdir)/ruby/internal/intern/object.h
-asan.o: $(hdrdir)/ruby/internal/intern/parse.h
-asan.o: $(hdrdir)/ruby/internal/intern/proc.h
-asan.o: $(hdrdir)/ruby/internal/intern/process.h
-asan.o: $(hdrdir)/ruby/internal/intern/random.h
-asan.o: $(hdrdir)/ruby/internal/intern/range.h
-asan.o: $(hdrdir)/ruby/internal/intern/rational.h
-asan.o: $(hdrdir)/ruby/internal/intern/re.h
-asan.o: $(hdrdir)/ruby/internal/intern/ruby.h
-asan.o: $(hdrdir)/ruby/internal/intern/select.h
-asan.o: $(hdrdir)/ruby/internal/intern/select/largesize.h
-asan.o: $(hdrdir)/ruby/internal/intern/set.h
-asan.o: $(hdrdir)/ruby/internal/intern/signal.h
-asan.o: $(hdrdir)/ruby/internal/intern/sprintf.h
-asan.o: $(hdrdir)/ruby/internal/intern/string.h
-asan.o: $(hdrdir)/ruby/internal/intern/struct.h
-asan.o: $(hdrdir)/ruby/internal/intern/thread.h
-asan.o: $(hdrdir)/ruby/internal/intern/time.h
-asan.o: $(hdrdir)/ruby/internal/intern/variable.h
-asan.o: $(hdrdir)/ruby/internal/intern/vm.h
-asan.o: $(hdrdir)/ruby/internal/interpreter.h
-asan.o: $(hdrdir)/ruby/internal/iterator.h
-asan.o: $(hdrdir)/ruby/internal/memory.h
-asan.o: $(hdrdir)/ruby/internal/method.h
-asan.o: $(hdrdir)/ruby/internal/module.h
-asan.o: $(hdrdir)/ruby/internal/newobj.h
-asan.o: $(hdrdir)/ruby/internal/scan_args.h
-asan.o: $(hdrdir)/ruby/internal/special_consts.h
-asan.o: $(hdrdir)/ruby/internal/static_assert.h
-asan.o: $(hdrdir)/ruby/internal/stdalign.h
-asan.o: $(hdrdir)/ruby/internal/stdbool.h
-asan.o: $(hdrdir)/ruby/internal/stdckdint.h
-asan.o: $(hdrdir)/ruby/internal/symbol.h
-asan.o: $(hdrdir)/ruby/internal/value.h
-asan.o: $(hdrdir)/ruby/internal/value_type.h
-asan.o: $(hdrdir)/ruby/internal/variable.h
-asan.o: $(hdrdir)/ruby/internal/warning_push.h
-asan.o: $(hdrdir)/ruby/internal/xmalloc.h
-asan.o: $(hdrdir)/ruby/missing.h
-asan.o: $(hdrdir)/ruby/ruby.h
-asan.o: $(hdrdir)/ruby/st.h
-asan.o: $(hdrdir)/ruby/subst.h
-asan.o: asan.c
-# AUTOGENERATED DEPENDENCIES END
diff --git a/ext/-test-/asan/extconf.rb b/ext/-test-/asan/extconf.rb
deleted file mode 100644
index ec02742b8145e4..00000000000000
--- a/ext/-test-/asan/extconf.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-require 'mkmf'
-create_makefile('-test-/asan')
diff --git a/ext/-test-/sanitizers/depend b/ext/-test-/sanitizers/depend
new file mode 100644
index 00000000000000..0e6e632803307e
--- /dev/null
+++ b/ext/-test-/sanitizers/depend
@@ -0,0 +1,162 @@
+# AUTOGENERATED DEPENDENCIES START
+sanitizers.o: $(RUBY_EXTCONF_H)
+sanitizers.o: $(arch_hdrdir)/ruby/config.h
+sanitizers.o: $(hdrdir)/ruby/assert.h
+sanitizers.o: $(hdrdir)/ruby/backward.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/assume.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/attributes.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/bool.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/inttypes.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/limits.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/long_long.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/stdalign.h
+sanitizers.o: $(hdrdir)/ruby/backward/2/stdarg.h
+sanitizers.o: $(hdrdir)/ruby/defines.h
+sanitizers.o: $(hdrdir)/ruby/intern.h
+sanitizers.o: $(hdrdir)/ruby/internal/abi.h
+sanitizers.o: $(hdrdir)/ruby/internal/anyargs.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/char.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/double.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/fixnum.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/gid_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/int.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/intptr_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/long.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/long_long.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/mode_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/off_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/pid_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/short.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/size_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/st_data_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/arithmetic/uid_t.h
+sanitizers.o: $(hdrdir)/ruby/internal/assume.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/alloc_size.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/artificial.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/cold.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/const.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/constexpr.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/deprecated.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/diagnose_if.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/enum_extensibility.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/error.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/flag_enum.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/forceinline.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/format.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/maybe_unused.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/noalias.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/nodiscard.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/noexcept.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/noinline.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/nonnull.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/noreturn.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/packed_struct.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/pure.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/restrict.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/returns_nonnull.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/warning.h
+sanitizers.o: $(hdrdir)/ruby/internal/attr/weakref.h
+sanitizers.o: $(hdrdir)/ruby/internal/cast.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_is.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_is/apple.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_is/clang.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_is/gcc.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_is/intel.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_is/msvc.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_is/sunpro.h
+sanitizers.o: $(hdrdir)/ruby/internal/compiler_since.h
+sanitizers.o: $(hdrdir)/ruby/internal/config.h
+sanitizers.o: $(hdrdir)/ruby/internal/constant_p.h
+sanitizers.o: $(hdrdir)/ruby/internal/core.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rarray.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rbasic.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rbignum.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rclass.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rdata.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rfile.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rhash.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/robject.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rregexp.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rstring.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rstruct.h
+sanitizers.o: $(hdrdir)/ruby/internal/core/rtypeddata.h
+sanitizers.o: $(hdrdir)/ruby/internal/ctype.h
+sanitizers.o: $(hdrdir)/ruby/internal/dllexport.h
+sanitizers.o: $(hdrdir)/ruby/internal/dosish.h
+sanitizers.o: $(hdrdir)/ruby/internal/error.h
+sanitizers.o: $(hdrdir)/ruby/internal/eval.h
+sanitizers.o: $(hdrdir)/ruby/internal/event.h
+sanitizers.o: $(hdrdir)/ruby/internal/fl_type.h
+sanitizers.o: $(hdrdir)/ruby/internal/gc.h
+sanitizers.o: $(hdrdir)/ruby/internal/glob.h
+sanitizers.o: $(hdrdir)/ruby/internal/globals.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/attribute.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/builtin.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/c_attribute.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/cpp_attribute.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/declspec_attribute.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/extension.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/feature.h
+sanitizers.o: $(hdrdir)/ruby/internal/has/warning.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/array.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/bignum.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/class.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/compar.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/complex.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/cont.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/dir.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/enum.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/enumerator.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/error.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/eval.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/file.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/hash.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/io.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/load.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/marshal.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/numeric.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/object.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/parse.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/proc.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/process.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/random.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/range.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/rational.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/re.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/ruby.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/select.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/select/largesize.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/set.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/signal.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/sprintf.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/string.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/struct.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/thread.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/time.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/variable.h
+sanitizers.o: $(hdrdir)/ruby/internal/intern/vm.h
+sanitizers.o: $(hdrdir)/ruby/internal/interpreter.h
+sanitizers.o: $(hdrdir)/ruby/internal/iterator.h
+sanitizers.o: $(hdrdir)/ruby/internal/memory.h
+sanitizers.o: $(hdrdir)/ruby/internal/method.h
+sanitizers.o: $(hdrdir)/ruby/internal/module.h
+sanitizers.o: $(hdrdir)/ruby/internal/newobj.h
+sanitizers.o: $(hdrdir)/ruby/internal/scan_args.h
+sanitizers.o: $(hdrdir)/ruby/internal/special_consts.h
+sanitizers.o: $(hdrdir)/ruby/internal/static_assert.h
+sanitizers.o: $(hdrdir)/ruby/internal/stdalign.h
+sanitizers.o: $(hdrdir)/ruby/internal/stdbool.h
+sanitizers.o: $(hdrdir)/ruby/internal/stdckdint.h
+sanitizers.o: $(hdrdir)/ruby/internal/symbol.h
+sanitizers.o: $(hdrdir)/ruby/internal/value.h
+sanitizers.o: $(hdrdir)/ruby/internal/value_type.h
+sanitizers.o: $(hdrdir)/ruby/internal/variable.h
+sanitizers.o: $(hdrdir)/ruby/internal/warning_push.h
+sanitizers.o: $(hdrdir)/ruby/internal/xmalloc.h
+sanitizers.o: $(hdrdir)/ruby/missing.h
+sanitizers.o: $(hdrdir)/ruby/ruby.h
+sanitizers.o: $(hdrdir)/ruby/st.h
+sanitizers.o: $(hdrdir)/ruby/subst.h
+sanitizers.o: sanitizers.c
+# AUTOGENERATED DEPENDENCIES END
diff --git a/ext/-test-/sanitizers/extconf.rb b/ext/-test-/sanitizers/extconf.rb
new file mode 100644
index 00000000000000..c94a96de6c5218
--- /dev/null
+++ b/ext/-test-/sanitizers/extconf.rb
@@ -0,0 +1,2 @@
+require 'mkmf'
+create_makefile('-test-/sanitizers')
diff --git a/ext/-test-/sanitizers/sanitizers.c b/ext/-test-/sanitizers/sanitizers.c
new file mode 100644
index 00000000000000..97a85b26ef3f83
--- /dev/null
+++ b/ext/-test-/sanitizers/sanitizers.c
@@ -0,0 +1,36 @@
+#include "ruby/ruby.h"
+
+static VALUE
+asan_enabled_p(VALUE self)
+{
+#if defined(__has_feature)
+    /* clang uses __has_feature for determining asan */
+    return __has_feature(address_sanitizer) ? Qtrue : Qfalse;
+#elif defined(__SANITIZE_ADDRESS__)
+    /* GCC sets __SANITIZE_ADDRESS__ for determining asan */
+    return Qtrue;
+#else
+    return Qfalse;
+#endif
+}
+
+static VALUE
+lsan_enabled_p(VALUE self)
+{
+#if defined(__has_feature)
+    /* clang uses __has_feature for determining LSAN */
+    return __has_feature(leak_sanitizer) ? Qtrue : Qfalse;
+#else
+    return Qfalse;
+#endif
+}
+
+void
+Init_sanitizers(void)
+{
+    VALUE m = rb_define_module("Test");
+    VALUE c = rb_define_class_under(m, "Sanitizers", rb_cObject);
+    rb_define_singleton_method(c, "asan_enabled?", asan_enabled_p, 0);
+    rb_define_singleton_method(c, "lsan_enabled?", lsan_enabled_p, 0);
+}
+
diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index 7cea0b3a7027e7..3bbff73df8c070 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -58,6 +58,8 @@ def rlimit_exist?
 
   def test_rlimit_nofile
     return unless rlimit_exist?
+    omit "LSAN needs to open proc file" if Test::Sanitizers.lsan_enabled?
+
     with_tmpchdir {
       File.write 's', <<-"End"
         # Too small RLIMIT_NOFILE, such as zero, causes problems.
diff --git a/tool/lib/core_assertions.rb b/tool/lib/core_assertions.rb
index cc4eb327d41106..fc7b9402843303 100644
--- a/tool/lib/core_assertions.rb
+++ b/tool/lib/core_assertions.rb
@@ -74,7 +74,7 @@ def message msg = nil, ending = nil, &default
     module CoreAssertions
       require_relative 'envutil'
       require 'pp'
-      require '-test-/asan'
+      require '-test-/sanitizers'
 
       nil.pretty_inspect
 
@@ -159,7 +159,7 @@ def assert_no_memory_leak(args, prepare, code, message=nil, limit: 2.0, rss: fal
         pend 'assert_no_memory_leak may consider MJIT memory usage as leak' if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
         # ASAN has the same problem - its shadow memory greatly increases memory usage
         # (plus asan has better ways to detect memory leaks than this assertion)
-        pend 'assert_no_memory_leak may consider ASAN memory usage as leak' if Test::ASAN.enabled?
+        pend 'assert_no_memory_leak may consider ASAN memory usage as leak' if Test::Sanitizers.asan_enabled?
 
         require_relative 'memory_status'
         raise Test::Unit::PendedError, "unsupported platform" unless defined?(Memory::Status)
diff --git a/win32/configure.bat b/win32/configure.bat
index 79384a87590067..8f767ede73256a 100755
--- a/win32/configure.bat
+++ b/win32/configure.bat
@@ -1,5 +1,5 @@
 @echo off
-@setlocal disabledelayedexpansion
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
 set PROMPT=$E[94m+$E[m$S
 set witharg=
 
diff --git a/win32/ifchange.bat b/win32/ifchange.bat
index c7a57fad3583c4..f3fc9ea37c6203 100755
--- a/win32/ifchange.bat
+++ b/win32/ifchange.bat
@@ -1,6 +1,8 @@
 @echo off
 :: usage: ifchange target temporary
 
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
+
 :: @set PROMPT=$T:$S
 for %%I in (%0) do set progname=%%~nI
 set timestamp=
diff --git a/win32/install-buildtools.cmd b/win32/install-buildtools.cmd
index 6ec147528000db..fbbe051f717b3e 100755
--- a/win32/install-buildtools.cmd
+++ b/win32/install-buildtools.cmd
@@ -1,5 +1,5 @@
 @echo off
-setlocal
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
 
 set components=VC.Tools.x86.x64 VC.Redist.14.Latest CoreBuildTools
 set components=%components% Windows11SDK.26100
diff --git a/win32/lastrev.bat b/win32/lastrev.bat
index f1c799f8976f2c..c4ce61e34abe82 100755
--- a/win32/lastrev.bat
+++ b/win32/lastrev.bat
@@ -1,5 +1,6 @@
-@setlocal
 @echo off
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
+
 if "%1" == "" (set gitdir=.) else (set gitdir=%1)
 set TZ=UTC
 for /f "usebackq tokens=1-3" %%I in (
diff --git a/win32/makedirs.bat b/win32/makedirs.bat
index 13740d877809ed..8c06d94041c46b 100755
--- a/win32/makedirs.bat
+++ b/win32/makedirs.bat
@@ -1,3 +1,3 @@
 @echo off
-setlocal EnableExtensions
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
 for %%I in (%*) do if not exist "%%~I/." mkdir "%%~I"
diff --git a/win32/rm.bat b/win32/rm.bat
index fefc0305458e57..500a4abe2e5562 100755
--- a/win32/rm.bat
+++ b/win32/rm.bat
@@ -1,5 +1,5 @@
 @echo off
-setlocal
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
 set recursive=
 :optloop
 if "%1" == "-f" shift
diff --git a/win32/rmdirs.bat b/win32/rmdirs.bat
index 308b6483229353..c3d7b637b3ea2a 100755
--- a/win32/rmdirs.bat
+++ b/win32/rmdirs.bat
@@ -1,5 +1,5 @@
-::-*- batch -*-
 @echo off
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
 if "%1" == "-p" shift
 :begin
 if "%1" == "" goto :end
diff --git a/win32/rtname.cmd b/win32/rtname.cmd
index 775e81681a5c6c..1ac008ebf06d3c 100755
--- a/win32/rtname.cmd
+++ b/win32/rtname.cmd
@@ -1,4 +1,5 @@
 @echo off
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
 set rt=
 set rtver=
 set osver=
diff --git a/win32/vssetup.cmd b/win32/vssetup.cmd
index c67bb0ad7c07de..2bbfbf1384f27e 100755
--- a/win32/vssetup.cmd
+++ b/win32/vssetup.cmd
@@ -1,4 +1,4 @@
-@setlocal ENABLEEXTENSIONS
+@setlocal EnableExtensions DisableDelayedExpansion || exit /b -1
 ::- do not `echo off` that affects the called batch files
 
 ::- check for vswhere