Use the correct instruction to clear the frame pointer.

ok guenther@, deraadt@

diff --git a/lib/libc/arch/aarch64/sys/tfork_thread.S b/lib/libc/arch/aarch64/sys/tfork_thread.S
index a1b3179..834d39d 100644 (file)
--- a/lib/libc/arch/aarch64/sys/tfork_thread.S
+++ b/lib/libc/arch/aarch64/sys/tfork_thread.S
@@ -1,4 +1,4 @@
-/* $OpenBSD: tfork_thread.S,v 1.7 2022/05/24 22:36:58 guenther Exp $ */
+/* $OpenBSD: tfork_thread.S,v 1.8 2022/12/24 10:47:22 kettenis Exp $ */
 /*
  * Copyright (c) 2005 Dale Rahn <drahn@openbsd.org>
  *
@@ -38,7 +38,7 @@ ENTRY(__tfork_thread)
        .cfi_startproc
        .cfi_undefined  lr
        /* child */
-       ldr     fp, 0
+       mov     fp, #0
        mov     x0, x3
        blr     x2
        SYSTRAP(__threxit)