Re: [Qemu-devel] [RFC v4 5/9] configure: Enable/disable new qemu_{ld, st} excl insns

[Alex Bennée]

Aurelien Jarno <address@hidden> writes:

> On 2015-08-07 19:03, Alvise Rigo wrote:
>> Introduce the new --enable-tcg-ldst-excl configure option to enable the
>> LL/SC operations only for those backends that support them.
>> 
>> Suggested-by: Jani Kokkonen <address@hidden>
>> Suggested-by: Claudio Fontana <address@hidden>
>> Signed-off-by: Alvise Rigo <address@hidden>
>> ---
>>  configure | 21 +++++++++++++++++++++
>>  1 file changed, 21 insertions(+)
>
> We have seen that for this kind of patch, it's better to add support in
> all backends, otherwise it takes ages to get all the backends converted.
> I think you should involve the backend maintainers. I can try to provide
> the corresponding patches for mips and ia64.

We discussed this on the last MTTCG call and agree. However we will need
help from the other TCG maintainers for the backends. The changes should
be fairly mechanical though.

However in the spirit of keeping trees building in the meantime should
we change this from a configure option to just a static option for each
given backend as it is converted?

-- 
Alex Bennée