Re: [Qemu-devel] [PATCH 2/2] qemu-thread: add TLS wrappers

[Paolo Bonzini]

Il 01/07/2013 22:30, Richard Henderson ha scritto:
> On 07/01/2013 12:25 PM, Peter Maydell wrote:
>> Does any OS have a __thread which compiles but is broken, or can
>> we just have a configure test for this? That would let MacOSX+clang
>> use __thread.
> 
> I suspect that this will work.  Some targets may succeed in using gcc's
> "emutls" path, which while slower than TLS is pretty much exactly the pthread
> get/setcontext fallback that's been proposed elsewhere on this list.

We do not want to hit emutls on Windows, but that can be done simply by
reordering the three implementation.

Paolo