Re: [PATCH 1/4] x86: replace __ASM_{CL,ST}AC

[Jan Beulich <jbeulich@xxxxxxxx>]

On 28.07.2020 15:55, Andrew Cooper wrote:
> On 15/07/2020 11:48, Jan Beulich wrote:
>> --- a/xen/arch/x86/arch.mk
>> +++ b/xen/arch/x86/arch.mk
>> @@ -20,6 +20,7 @@ $(call as-option-add,CFLAGS,CC,"rdrand %
>>  $(call as-option-add,CFLAGS,CC,"rdfsbase %rax",-DHAVE_AS_FSGSBASE)
>>  $(call as-option-add,CFLAGS,CC,"xsaveopt (%rax)",-DHAVE_AS_XSAVEOPT)
>>  $(call as-option-add,CFLAGS,CC,"rdseed %eax",-DHAVE_AS_RDSEED)
>> +$(call as-option-add,CFLAGS,CC,"clac",-DHAVE_AS_CLAC_STAC)
> 
> Kconfig please, rather than extending this legacy section.
> 
> That said, surely stac/clac support is old enough for us to start using
> unconditionally?

It's available in binutils 2.24 and newer.

Jan