Re: GCC 3.5 and debug info generation

[Devang Patel <dpatel at apple dot com>]

On Aug 25, 2004, at 5:34 PM, Daniel Jacobowitz wrote:

> On Wed, Aug 25, 2004 at 02:18:06PM -0700, Devang Patel wrote:
> > This is just heads up.
> >
> > In last six month or so, quality of debugging info. generated by GCC
> > 3.5 has regressed significantly (as per GDB test suite results).
> >
> > According to Michael Chastain's test results
> > http://gcc.gnu.org/ml/gcc-testresults/2004-08/msg00833.html
> > http://www.shout.net/~mec/sunday/current/Non-PASS-gdb-6.2-suite-
> > HEAD.html
> >
> > Use of GCC-3.5 results in 925 and 905 failures for STABS and DWARFS
> > format respectively. For the same version of GDB, however use of
> > GCC-3_4-branch results in 33 and 55 failures.
> >
> > Above numbers are for i686-pc-linux-gnu. We are seeing similar (not
> > identical) numbers for powerpc-darwin-apple using different GDB
> > version. Right now we are seeing 859 failures for STABS, where as we
> > saw only 239 failures in mid March.
>
> Have you characterized the failures?

No. I just found some time, in-between bootstraps, to run tests. Andrew 
P. pointed that Michael is also getting similar results. I sent this 
email to get people's attention and know if they are aware of any major 
issues and its status.

>  Michael has been fixing them;
> most of them were caused by the 'implicit definition of built-in
> function abort' warning.  He's been filing GCC bugs as he notices
> problems, and last I checked most of them were fixed.

Thanks,
-
Devang