From: Niels Möller <nisse@lysator.liu.se>
Date: Tue, 2 Feb 2021 17:05:23 +0000 (+0100)
Subject: aarch64: Use .arch armv8-a+crypto directive.
X-Git-Tag: nettle_3.8_release_20220602~141^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0489825ec047835a2ad1e2d3c9ba3570783f5739;p=thirdparty%2Fnettle.git

aarch64: Use .arch armv8-a+crypto directive.
---

diff --git a/ChangeLog b/ChangeLog
index 0f695415..fba49192 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2021-02-02  Niels Möller  <nisse@lysator.liu.se>
+
+	* arm64/v8/gcm-hash.asm: Add ".arch armv8-a+crypto" directive.
+	Supported by both GNU as and clang (the latter at least from
+	version 3.9.1).
+	* configure.ac: Don't add -march=armv8-a+crypto to CFLAGS.
+
 2021-01-31  Niels Möller  <nisse@lysator.liu.se>
 
 	* arm64/v8/gcm-hash.asm: New file, contributed by Maamoun TK and
diff --git a/arm64/v8/gcm-hash.asm b/arm64/v8/gcm-hash.asm
index d43c3c50..b77b08d6 100644
--- a/arm64/v8/gcm-hash.asm
+++ b/arm64/v8/gcm-hash.asm
@@ -31,6 +31,7 @@ ifelse(`
 ')
 
 .file "gcm-hash.asm"
+.arch armv8-a+crypto
 
 .text
 
diff --git a/configure.ac b/configure.ac
index 06505728..33ece246 100644
--- a/configure.ac
+++ b/configure.ac
@@ -478,7 +478,6 @@ if test "x$enable_assembler" = xyes ; then
       if test "$ABI" = 64 ; then
 	asm_path=arm64
 	if test "$enable_armv8_a_crypto" = yes ; then
-          CFLAGS="$CFLAGS -march=armv8-a+crypto"
           asm_path="arm64/v8 $asm_path"
         fi
       else