Re: PATCH: libgcc: Enable TLS for Linux/x86

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

On Thu, Jul 05, 2007 at 11:32:08AM -0400, Daniel Jacobowitz wrote:
> On Thu, Jul 05, 2007 at 06:54:07AM -0700, H.J. Lu wrote:
> > On Thu, Jul 05, 2007 at 09:43:11AM -0400, Daniel Jacobowitz wrote:
> > > On Thu, Jul 05, 2007 at 06:29:06AM -0700, H.J. Lu wrote:
> > > > This patch enables TLS for Linux/x86 in libgcc. libbid needs it
> > > > for thread-safty. Tested on Linux/x86.
> > > 
> > > How can you get away without any configure check that __thread is
> > > present?
> > 
> > My original patch checks TLS support. The comments I got were to
> > enable TLS for Linux/x86 in config.host:
> > 
> > http://gcc.gnu.org/ml/gcc-patches/2007-06/msg01475.html
> 
> Paolo, what about old binutils?  I don't know what we require nowadays
> but I doubt it's sufficient for __thread.  I think we still need a
> link test, or at least an assembler test.
> 
> If I understand correctly, glibc support is not a major issue because
> this code will only be pulled in by programs which use DFP.

Yes, that is correct.


H.J.