Re: gcc-2.95.2-51 is buggy

["Linux Kernel Developer" <linux_developer@hotmail.com>]

> > Reading specs from /usr/lib/gcc-lib/i486-suse-linux/2.95.2/specs
> > gcc version 2.95.2 19991024 (release)
> > % /usr/bin/gcc -Wall -O2 -o bug bug.c; ./bug
> > 0x84800000
> > % /usr/gcc/aeb/bin/gcc -v
> > Reading specs from
/usr/gcc/aeb/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/specs
> > gcc version 2.95.2 19991024 (release)
> > % /usr/gcc/aeb/bin/gcc -Wall -O2 -o nobug bug.c; ./nobug
> > 0x0
> >
> > So, not all versions of gcc 2.95.2 are equal.
>
> Interesting. Plain vanilla 2.95.2 from ftp.gnu.org exhibits the same
> bug on an BSDI2.1 i386 system.
>
> defiant ~/tmp$ gcc -v
> Reading specs from /usr/local/gnu/lib/gcc-lib/i386-pc-bsdi2.1/2.95.2/specs
> gcc version 2.95.2 19991024 (release)
> defiant ~/tmp$ gcc -O2 -o bug bug.c; ./bug
> 0x4800000
>
> Ion
>

    Don't know if anyone else has noticed this but from what I've seen
posted it appears, unless I missed something, the gcc 2.95.2s that have
exibited the bug were compiled for a 386 or a 486 while the one on which it
worked was a 686.  Perhaps the bug only appears on certain gcc
configurations.  Either the build configuration or the default optimization
method(s), if I remember correctly gcc optimizes for the platform (i.e.
i386, i486, i586, etc) it was configured for by default.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/