Split tls-macros.h into sysdeps directories

[Ryan S. Arnold]

On Tue, Jul 10, 2012 at 6:51 PM, Joseph S. Myers
<joseph@codesourcery.com> wrote:
> This patch splits the architecture-specific content of
> elf/tls-macros.h into separate files for each architecture in
> appropriate sysdeps directories, in line with the goal of reducing the
> number of architecture conditionals in common code and making libc
> targets more like ports targets in terms of having everything
> architecture-specific cleanly contained in sysdeps directories.
>
> Tested x86_64 and x86.  Could architecture maintainers test / review
> for the other architectures?  Given the presence of a common macro
> used for both powerpc32 and powerpc64, I put both powerpc32 and
> powerpc64 versions in a single file in sysdeps, but powerpc
> maintainers may wish to split things up further.

I tested this on PowerPC32 and PowerPC64 as checked in with
Adhemerval's patch on top and it doesn't cause any new regressions.

Ryan S. Arnold