Re: PATCH: Check TLS for libgcc

["H. J. Lu" <hjl at lucon dot org>]

On Wed, Jun 20, 2007 at 08:57:11AM +0200, Paolo Bonzini wrote:
> 
> >Luckily, we can use GCC_CHECK_TLS for the native compiler of the
> >native target.  Even if the build compiler doesn't support TLS, it
> >won't be a problem.  The stage 2 and stage 3 libgcc will have proper
> >TLS support if the stage 2 and stage 3 compilers do supprot TLS at
> >run-time. During stage 3, the compiler checked by GCC_CHECK_TLS in
> >gcc in this case is the stage 2 compiler, which should have the
> >identical features as the stage 3 compiler, which will be used to
> >compile stage 3 libgcc. So libgcc can use auto-host.h in gcc to check
> >if TLS can be used for the native compiler of the native target.
> 
> Actually, neither your patch nor my alternative proposal will work if 
> --disable-bootstrap is used.  The test would then be done on the build 
> compiler ("stage0").

They can use --enable-tls or something like that.


H.J.