Journeyman configure/build options for gcc & glibc?
Joe Green
jgreen at mvista.com
Thu Aug 17 04:44:29 EST 2000
On Tue, 15 Aug 2000, Graham Stoney wrote:
> I thought I had the whole soft-float thing on 8xx worked out long ago, until I
> upgraded our root filesystem to the one from MontaVista's Journeyman kit, and
> found that my glibc-2.1.3.so (which my binaries work when linked against)
> doesn't work in place of the Journeyman glibc-2.1.2.so. It's the usual
> symptom: A simple floating-point printf gives the wrong answer.
>
> So, my question: what configure options were used to build the gcc-2.95.2 &
> glibc-2.1.2 in Journeyman? In particular:
>
> - Did the gcc configure include "-with-cpu=860" (or one of the other cpus's
> to make -msoft-float the default).
>
> - Has the gcc specs file been hacked to pass -D_SOFT_FLOAT in the absence of
> -mhard-float (note that -mcpu=860 won't do this by default in gcc-2.95.2)
>
> - Was CFLAGS set to include -msoft-float before building glibc?
I believe the compiler has been modified to default to both
-msoft-float and -D_SOFT_FLOAT for ppc_8xx.
> - Any other suggestions :-(
I recall the printf problem as something we specifically fixed. I
asked the engineer who worked on it, and he said it was a varargs
problem, so the fix is in the the gcc package.
--
Joe Green <jgreen at mvista.com>
MontaVista Software, Inc.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
More information about the Linuxppc-embedded
mailing list