[OpenBIOS] starting

[Blue Swirl]

On Sun, Oct 3, 2010 at 10:19 AM, Andreas Färber <andreas.faerber at web.de> wrote:
> Am 22.08.2009 um 14:16 schrieb Blue Swirl:
>
>> Configuring for *-elf is easier than *-linux, because then the include
>> files, libgcc, crt0.o etc. will not be needed. These can be difficult
>> to compile sometimes. The drawback is that you can't use the compiler
>> for normal Unix programs, only for OpenBIOS and maybe Linux kernel.
>>
>> BTW, there is a bug in one of the tools (binutils, gcc, gdb, can't
>> remember which): if you want the tool for powerpc64, the only
>> supported target is powerpc64-linux, powerpc64-elf won't work.
>
> [snip]
>
> It's GCC that doesn't know powerpc64-elf or powerpc64-eabi.
>
> Does anyone have any pointers how to set up $PREFIX/powerpc-linux/include
> etc. without access to a working ppc Linux system? GCC 4.4.5
> --target=powerpc64-linux build is failing during libdecnumber compilation
> for lack of string.h and stdio.h.

Perhaps you can extract the headers from a RPM with cpio or from a DEB with ar.

In theory, adding powerpc64-elf support to GCC should be a matter of
adding a target Makefile fragment (t-elf64) to gcc/config/rs6000,
maybe some other small changes.