new RTEMS user

Joel Sherrill joel.sherrill at
Fri Jul 25 16:39:34 UTC 2003

Ed Sutter wrote:
> Hi,
> I'm brand new to RTEMS.  I'd like to try it out on a PPC405
> board I have.  I just downloaded rtems-4.6.0pre4 and ran
> configure with the following options...
>    --target=powerpc-rtems --disable-itron --program-prefix=ppc-elf-

ppc-elf != ppc-rtems.  You should not attempt to use a plain ppc-elf
toolset to build RTEMS.  There are some subtle differences between 
ppc-elf and ppc-rtems including specification of start and end files, 
symbols predefined.

> I'm hoping to be able to build RTEMS using the CYGWIN X-TOOLS package
> from MicroCross, that's why I add the --program-prefix=ppc-elf-.
> Anyway, the "configure" ran through successfully, but when I ran
> make RTEMS_BSP="gen405" it very quickly told me it could not find
> "powerpc-rtems-gcc".  I thought that the "--program-prefix=ppc-elf-"
> would deal with this.  Any idea what I may be doing wrong?

Well for one, --program-prefix is a broken option in the configure
But the build wouldn't have been right anyway.

Why don't you down the Cygwin RTEMS tools at

> Thanks
> Ed Sutter

Joel Sherrill, Ph.D.             Director of Research & Development
joel at                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
Support Available                (256) 722-9985

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