On Sat, Feb 10, 2018 at 09:26:47AM -0700, Jeff Law wrote:
> > I think it makes sense to disable them by default if gas doesn't support
> > them with that ability to override the auto detection by a configure
> > switch (get the GCC generated ones). The patch looks too heavy for this
> > stage and as you say we lack support on the consumer side anyways. We
> > can revisit this patch for GCC 9 or simply document the recommendation
> > of using gas 2.30 or newer.
> Seems reasonable to me as well.
We should have a switch to force gcc generated .debug_line in any case,
similarly how we have -fno-dwarf2-cfi-asm.
E.g. only the gcc generated .debug_line can do DWARF5 .debug_line right now,
gas generated one can't.
Jakub
