On Mon, 13 Sep 2021, Jeff Law wrote: > > > On 9/13/2021 1:31 AM, Richard Biener wrote: > > This makes defaults.h choose DWARF2_DEBUG if PREFERRED_DEBUGGING_TYPE > > is not specified by the target and NO_DEBUG if DWARF is not supported. > > > > It also makes us warn when STABS is enabled and removes the corresponding > > diagnostic from the Ada frontend. The warnings are pruned from the > > testsuite output via prune_gcc_output. > > > > This leaves the following targets without debug support: > > > > pdp11-*-* pdp11 is a.out, dwarf support is difficult > > m68k*-*-openbsd* it looks like this is a.out as well, at least it does > > not pretend to support DWARF > > hppa[12]*-*-hpux10* does seem to not support DWARF > I would probably argue that hpux10 should just be removed, along with hpux 7-9 > if they haven't been already. It's the epitome of a dead platform.
It is in fact also hpux11*, thus all 32bit pa configs that do not support DWARF (for whatever reasons). Richard. > > > vax-*-openbsd* seems to be a.out as well, does not support DWARF > > > > behavior will be like > > > >> ./cc1 -quiet t.c -g > > cc1: warning: target system does not support debug output > >> ./cc1 -quiet t.c -gstabs > > t.c: warning: STABS debugging information is obsolete and not supported > > anymore > > > > that is, -g is unsupported but -gstabs will generate STABS (the above > > is for pdp11). It would be nice if maintainers could confirm the above > > listed configurations do not support DWARF and weight in whether to > > (apart from pdp11) the specific configurations can be obsoleted or > > adjusted. It looks like we do not have any openbsd maintainer. > > I've discussed the situation for pdp11 with Paul already at some point > > but we didn't reach any conclusion besides that it would be nice to > > move pdp11 to ELF. > > > > > > 2021-09-10 Richard Biener <rguent...@suse.de> > > > > gcc/ > > * defaults.h (PREFERRED_DEBUGGING_TYPE): Choose DWARF2_DEBUG > > or NO_DEBUG. > > * toplev.c (process_options): Warn when STABS debugging is > > enabled. > > > > gcc/ada/ > > * gcc-interface/misc.c (gnat_post_options): Do not warn > > about DBX_DEBUG use here. > > > > gcc/testsuite/ > > * lib/prune.exp: Prune STABS obsoletion message. > OK > jeff > > > -- Richard Biener <rguent...@suse.de> SUSE Software Solutions Germany GmbH, Maxfeldstrasse 5, 90409 Nuernberg, Germany; GF: Felix Imendörffer; HRB 36809 (AG Nuernberg)
