diff --git a/linker/arch/x86_64/begin.S b/linker/arch/x86_64/begin.S
index 7945a31..4722301 100644
--- a/linker/arch/x86_64/begin.S
+++ b/linker/arch/x86_64/begin.S
@@ -29,6 +29,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(_start)
+  // Force unwinds to end in this function.
+  .cfi_undefined %rip
+
   mov %rsp, %rdi
   call __linker_init