svn commit: r334947 - head/sys/modules

Conrad Meyer cem at freebsd.org
Sat Jun 16 19:21:48 UTC 2018


r255185 added _mm_aesenc(), etc, but not _mm_sha*().  That's probably
where the report comes from.

(If you feel it is worth your while adding sha intrinsics to a
decade-old GCC, go ahead, but I think gcc 4.2 on x86 is pretty dead.)

Best,
Conrad

On Sat, Jun 16, 2018 at 7:57 AM, Kurt Lidl <lidl at pix.net> wrote:
> 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 at 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
>


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