Add a guarded .note.GNU-stack section to crypto assembly files.

Add a .note.GNU-stack section to avoid ending up with an executable stack
on toolchains that believe we should have an executable stack by default.

Reported by ruuda on Github.

Discussed with tb@

1 files changed, 5 insertions, 1 deletions

diff --git a/src/lib/libcrypto/md5/md5_amd64_generic.S b/src/lib/libcrypto/md5/md5_amd64_generic.S
index 35e6fcdada..02f6ebdbcc 100644
--- a/src/lib/libcrypto/md5/md5_amd64_generic.S
+++ b/src/lib/libcrypto/md5/md5_amd64_generic.S
@@ -1,4 +1,4 @@
-/*      $OpenBSD: md5_amd64_generic.S,v 1.2 2026/03/28 13:11:28 jsing Exp $ */
+/*      $OpenBSD: md5_amd64_generic.S,v 1.3 2026/05/12 15:07:30 jsing Exp $ */
 /*
  * Copyright (c) 2025 Joel Sing <jsing@openbsd.org>
  *
@@ -231,3 +231,7 @@ md5_block_data_order:
         popq    %rbx
 
         ret
+
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif