Provide a SHA-256 assembly implementation for amd64 using SHA-NI.

This provides a SHA-256 assembly implementation for amd64, which uses
the Intel SHA Extensions (aka SHA New Instructions or SHA-NI). This
provides a 3-5x performance gain on some Intel CPUs and many AMD CPUs.

ok tb@

1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/libcrypto/arch/amd64/Makefile.inc b/src/lib/libcrypto/arch/amd64/Makefile.inc
index 9ba5634f87..fe22385633 100644
--- a/src/lib/libcrypto/arch/amd64/Makefile.inc
+++ b/src/lib/libcrypto/arch/amd64/Makefile.inc
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile.inc,v 1.32 2024/11/16 14:56:39 jsing Exp $
+# $OpenBSD: Makefile.inc,v 1.33 2024/11/16 15:31:36 jsing Exp $
 
 # amd64-specific libcrypto build rules
 
@@ -53,6 +53,7 @@ SSLASM+= sha sha1-x86_64
 CFLAGS+= -DSHA256_ASM
 SRCS+= sha256_amd64.c
 SRCS+= sha256_amd64_generic.S
+SRCS+= sha256_amd64_shani.S
 CFLAGS+= -DSHA512_ASM
 SRCS+= sha512_amd64.c
 SRCS+= sha512_amd64_generic.S