On Tue, Apr 6, 2021 at 6:34 AM Richard Biener via Gcc <gcc@gcc.gnu.org> wrote: > > On Mon, Apr 5, 2021 at 10:56 PM Simon Marchi via Gcc <gcc@gcc.gnu.org> wrote: > > > > On 2021-04-05 3:36 p.m., Jim Wilson wrote:> On Sat, Apr 3, 2021 at 6:24 PM > > Simon Marchi via Gcc <gcc@gcc.gnu.org <mailto:gcc@gcc.gnu.org>> wrote: > > > > > > The default debug format (when using only -g) for the AVR target is > > > stabs. Is there a reason for it not being DWARF, and would it be > > > possible to maybe consider possibly thinking about making it default > > > to > > > DWARF? I am asking because the support for stabs in GDB is pretty > > > much > > > untested and bit-rotting, so I think it would be more useful for > > > everyone to use DWARF. > > > > > > > > > I tried to deprecate the stabs support a little over 4 years ago. > > > https://gcc.gnu.org/pipermail/gcc-patches/2017-December/489296.html > > > <https://gcc.gnu.org/pipermail/gcc-patches/2017-December/489296.html> > > > There was a suggestion to change the error to a warning, but my startup > > > company job kept me so busy I never had a chance to follow up on this. > > > > > > I would like to see the stabs support deprecated and the later removed > > > from gcc. No new features have been added in a long time, and it is only > > > being maintained in the sense that when it fails it is fixed to ignore > > > source code constructs that it doesn't support. The longer it survives > > > in this state, the less useful it becomes. > > > > > > Jim > > > > You have 100% my suppose on this. The longer stabs survives (especially > > as the default for an arch), the longer some people who don't know the > > intricacies of debug formats could use it without knowing, and that > > does them a disservice. > > Patches to kill STABS (and related/derived formats) are pre-approved for > stage1.
AIX continues to use and support STABS, although it is transitioning to DWARF. If this is intended as a general statement about removal of STABS support in GCC, it is premature. Thanks, David
