Re: [PATCH]: Remove CONFIG_BUILD_ELF64 entirely

[Thiemo Seufer <ths@networkno.de>]

Franck Bui-Huu wrote:
> On 3/25/07, Ralf Baechle <ralf@linux-mips.org> wrote:
> >Note IP27 works fine either way and the code size difference is 
> >considerable:
> >Here are numbers for ip27_defconfig with gcc 4.1.2 and binutils 2.17:
> >
> >   text    data     bss     dec     hex filename
> >3397944  415768  256816 4070528  3e1c80 vmlinux BUILD_ELF64=n
> >3774968  415768  248624 4439360  43bd40 vmlinux BUILD_ELF64=y
> >
> 
> Impressive figures !
> 
> However I can't understand why there's a such difference, I'm surely
> missing something. AFAIK, we're not doing so many symbol loads in the
> kernel ?

Yes we do, for many local symbols. It's the reason why the toolchain
has a -msym32 switch now.


Thiemo