On Sun, Dec 28, 2003 at 08:54:34PM +0100, Guido Guenther wrote:
> could anybody explain to me how one builds 2.6 (current CVS) 64bit
> kernel resulting in a 32bit ELF executable with a current (gcc >= 3.3,
> bintuils >= 126.96.36.199.5) toolchain.
> Major showstopper is that -Wa,-mabi=o64 doesn't work anymore, but
> -Wa,-mabi=32 -Wa,-mgp64 doesn't either since the assembler doesn't
> accept it.
> Thanks for any help,
I have found that the best way is to build a 64-bit ELF executable.
mips64_fp_le-objcopy -O elf32-ntradlittlemips vmlinux vmlinux.32bit
or the equivalent command.
You lose some space (lots) on wasted addressing calculations; no one
has found a good solution AFAIK.
MontaVista Software Debian GNU/Linux Developer