From: guenther <guenther@openbsd.org>
Date: Mon, 22 May 2023 00:37:19 +0000 (+0000)
Subject: NENTRY() doesn't provide an endbr64, so give memmove one in
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=bf39093a75df8b229ee5666cd0683c2926b41012;p=openbsd

NENTRY() doesn't provide an endbr64, so give memmove one in
case it ever gets called through a function pointer (with retpoline
disabled)

ok deraadt@
---

diff --git a/sys/lib/libkern/arch/amd64/memmove.S b/sys/lib/libkern/arch/amd64/memmove.S
index e10113a3745..6c49b21dd79 100644
--- a/sys/lib/libkern/arch/amd64/memmove.S
+++ b/sys/lib/libkern/arch/amd64/memmove.S
@@ -45,6 +45,7 @@ ENTRY(bcopy)
 	/* fall into memmove */
 
 NENTRY(memmove)
+	endbr64
 	RETGUARD_SETUP(memmove, r10)
 	movq	%rdi,%r11	/* save dest */
 	movq	%rdx,%rcx