diff --git a/linker/arch/arm/begin.S b/linker/arch/arm/begin.S
index 480047a..80d9fe1 100644
--- a/linker/arch/arm/begin.S
+++ b/linker/arch/arm/begin.S
@@ -29,6 +29,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(_start)
+  // Force unwinds to end in this function.
+  .cfi_undefined r14
+
   mov r0, sp
   bl __linker_init