Bug#746426: gcc: Enable -fasynchronous-unwind-tables on more arches.

[Kurt Roeckx <kurt@roeckx.be>]

On Mon, May 19, 2014 at 08:03:25PM +0200, Kurt Roeckx wrote:
> On Mon, May 19, 2014 at 12:45:27AM +0200, Mark Wielaard wrote:
> > On Mon, 2014-05-19 at 00:03 +0200, Kurt Roeckx wrote:
> > > > Am 30.04.2014 00:04, schrieb Kurt Roeckx:
> > > > > So reading about this, this might break glibc when you enable it
> > > > > and they might need to build some files without it.
> > > > 
> > > > Is this enabled by any other distributions?
> > > 
> > > I assume this is enabled on redhat/fedora, but I have no idea.
> > 
> > It is enabled on all primary and secondary arches.
> > 
> > What is the glibc breakage you are seeing?
> 
> I can't remember, I just found some reference to something that
> was broken in libc when it was enabled.  I assume that since
> redhat / fedora does this on all primary and secondary arches
> that it has been fixed for all arches.

So looking at this again, it seems glibc needs to exclude the init
and fini files, and I can find various old patches to fix that.

Is there any reason why gcc doesn't make this the default?


Kurt