Re: [Qemu-devel] [PATCH 3/7] configure: add CET support

[Paolo Bonzini]

On 14/03/19 16:23, Richard Henderson wrote:
> On 3/14/19 3:46 AM, Paolo Bonzini wrote:
>> On 14/03/19 01:56, Richard Henderson wrote:
>>> Hmm.  The gcc for aarch64 names the similar feature -mbranch-protection.  
>>> I'm
>>> rather annoyed that the i386 gcc folk appropriated a generic -f name without
>>> actually making the feature generic at the same time.
>>
>> Wouldn't -fcf-protection=branch also apply to ARM BTI?
> 
> It should, but doesn't.  Which was sort of my point re non-coordination of
> development.

I agree.  We should open a GCC bug about it, to make sure that in the
long run -fcf-protection does suffice on all architectures.

Paolo