[rock-devel] bc built with gcc4 dumps core

[Stefan Fiedler]

Am Freitag 18 November 2005 17:57 schrieb Benjamin Schieder:
> Clifford Wolf wrote:
> > As a matter of a fact we will never be able to even find a small portion
> > of what is going wrong when using a broken compiler optimization. So the
> > packages we do mark with such NOOPT flags would always be just the tip of
> > the iceberg and in the end we ship distributions full of broken bytecode.
> >
> > Instead we should start creating a detailed documentation of broken
> > compiler optimizations and create testcases from what we find and
> > confront the GCC team with our results.
>
> Shouldn't be much of a problem:
> Exhibit a)
> Build the LVP target for Pentium 4 and wait for groff to segfault on xorg.
> Exhibit b)
> Build Mozilla for Pentium 4 and watch it break during build.
> Exhibit c)
> Build gtk+ or whatever provides scrollbar functionality to gqview and gimp
> for Pentium M and try to scroll and watch the program segfault.
>
> Where should I send these and which output do those guys want?
>
> Greetings,
> 	Benjamin

I've written a ROCK Doc wiki page that answers your questions and which can be 
used to collect information on this issue. The link is 
http://doc.rocklinux.org/wiki/BrokenCompilerOptimizations. 

Hope that helps,
	Stefan