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Re: [RFC: Patch, PR 60102] [4.9/4.10 Regression] powerpc fp-bit ices at dwf_regno
- From: "Ulrich Weigand" <uweigand at de dot ibm dot com>
- To: macro at codesourcery dot com (Maciej W. Rozycki)
- Cc: edmar at freescale dot com (Edmar), dje dot gcc at gmail dot com (David Edelsohn), rohitarulraj at freescale dot com (rohitarulraj at freescale dot com), gcc-patches at gcc dot gnu dot org (gcc-patches at gcc dot gnu dot org), amodra at gmail dot com (Alan Modra), jakub at redhat dot com (Jakub Jelinek)
- Date: Mon, 29 Sep 2014 11:43:58 +0200 (CEST)
- Subject: Re: [RFC: Patch, PR 60102] [4.9/4.10 Regression] powerpc fp-bit ices at dwf_regno
- Authentication-results: sourceware.org; auth=none
Maciej W. Rozycki wrote:
> On Mon, 4 Aug 2014, Edmar wrote:
>
> > Committed on trunk, revision 213596
> > Committed on 4.9 branch, revision 213597
>
> This change regressed GDB for e500v2 multilibs, presumably because it
> does not understand the new DWARF register numbers and does not know how
> to map them to hardware registers.
As I understand it, the change was supposed to only affect GCC internals,
all externally generated debug info was supposed to remain unchanged.
If there are changes in debug info, something must have gone wrong.
Bye,
Ulrich
--
Dr. Ulrich Weigand
GNU/Linux compilers and toolchain
Ulrich.Weigand@de.ibm.com