On Sun, Dec 28, 2003 at 08:54:34PM +0100, Guido Guenther wrote: > Hi, > 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 >= 2.14.90.0.5) 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. Then, use: 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. -- Daniel Jacobowitz MontaVista Software Debian GNU/Linux Developer
