1 files changed, 24 insertions, 0 deletions
diff --git a/ext/-test-/asan/asan.c b/ext/-test-/asan/asan.c
new file mode 100644
index 0000000000..45b6253fda
--- /dev/null
+++ b/ext/-test-/asan/asan.c
@@ -0,0 +1,24 @@
+#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);
+}
+