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Date: Wed, 17 Aug 2011 10:26:32 -0700
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] Compilation error of coroutine-win32.c with gcc
 version 3.4.5 (mingw-vista special r3)
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To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Blue Swirl <blauwirbel@gmail.com>, qemu-devel <qemu-devel@nongnu.org>, Roy Tam <roytam@gmail.com>

On 08/17/2011 10:23 AM, Stefan Hajnoczi wrote:
>> >  I don't know about Win32 TLS support, but at least OpenBSD/sparc64
>> >  gcc/ld/ld.so/libc do not support __thread. According to manual, TLS is
>> >  not available everywhere:
>> >  http://gcc.gnu.org/onlinedocs/gcc-4.6.1/gcc/Thread_002dLocal.html#Thread_002dLocal
> Yeah, for OpenBSD we have the portable but slow GThread coroutine
> implementation.

I think (but I'm not sure) that a newer GCC on OpenBSD is able to 
convert __thread to pthread_key_setspecific.

I'm trying to see if we can do something like Windows TLS at the 
qemu-thread level.

Paolo