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Subject: Re: svn commit: r334947 - head/sys/modules
To: Dimitry Andric <dim@FreeBSD.org>, src-committers@freebsd.org,
 svn-src-all@freebsd.org, svn-src-head@freebsd.org
References: <201806110842.w5B8g4we013345@repo.freebsd.org>
From: Kurt Lidl <lidl@pix.net>
Message-ID: <b87a18ea-8580-7c46-ade0-9beee7528b55@pix.net>
Date: Sat, 16 Jun 2018 10:57:44 -0400
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On 6/11/18 4:42 AM, Dimitry Andric wrote:
> Author: dim
> Date: Mon Jun 11 08:42:03 2018
> New Revision: 334947
> URL: https://svnweb.freebsd.org/changeset/base/334947
> 
> Log:
>    Disable building aesni with base gcc
>    
>    Because base gcc does not support the required intrinsics, do not
>    attempt to compile the aesni module with it.
>    
>    Noticed by:	Dan Allen <danallen46@gmail.com>
>    MFC after:	3 days
> 
> Modified:
>    head/sys/modules/Makefile
> 
> Modified: head/sys/modules/Makefile
> ==============================================================================
> --- head/sys/modules/Makefile	Mon Jun 11 08:11:35 2018	(r334946)
> +++ head/sys/modules/Makefile	Mon Jun 11 08:42:03 2018	(r334947)
> @@ -627,7 +627,9 @@ _aac=		aac
>   _aacraid=	aacraid
>   _acpi=		acpi
>   .if ${MK_CRYPT} != "no" || defined(ALL_MODULES)
> +.if ${COMPILER_TYPE} != "gcc" || ${COMPILER_VERSION} > 40201
>   _aesni=		aesni
> +.endif
>   .endif
>   _amd_ecc_inject=amd_ecc_inject
>   _amdsbwd=	amdsbwd
> 

I thought that FreeBSD's base gcc (but not a stock 4.2.1 gcc) had 
support for this.  As documented in UPDATING:

20130903:
   AES-NI intrinsic support has been added to gcc.  The AES-NI module
   has been updated to use this support.  A new gcc is required to build
   the aesni module on both i386 and amd64.

-Kurt