Re: _gp_disp

[Pete Popov <ppopov@pacbell.net>]

Jun Sun wrote:
> Pete Popov wrote:
>
> > Sun, Lei wrote:
> >
> > > Hi:
> > >  I was trying to port a wireless lan driver to MIPS based platform (IDT
> > > 79S334), the compilation seems fine, But when I try to load the created
> > > module, it tells me "unresoved symbol _gp_disp".( I cross-compiled it by
> > > mipsel-gcc compiler).
> > >  By doing a quick grep in the driver source, I didn't find the gp_disp
> > > symbol. My question is where did the _gp_disp come from and how I should
> > > solve this problem?
> > >
> > > Appreciate your help!
> > You did not use the correct gcc options. Add these to your gcc flags and it
> > should work (replace -mcpu=<cpu> if you need to):
> >
> > -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -G 0
> > -mno-abicalls -fno-pic -mcpu=r4600 -mips2 -Wa,--trap -pipe -DMODULE -mlong-calls
> >   -DEXPORT_SYMTAB
>
> I think some of the options might not be necessary, but you definitely need
> "-DKERNEL"

Probably not all the options are necessary, but this is safe. These are the same 
options the Makefiles in the kernel use.

Pete