Re: big endian conflicts thumb in arm-elf config

[yuwen <yuwen at micetek dot com dot cn>]

Richard Earnshaw wrote:

> > Hi, Deal all
> >
> > After I enabled both big endian and thumb in gcc/config/t-arm-elf   like 
> > this:
> >
> > MULTILIB_OPTIONS     = marm/mthumb
> > MULTILIB_DIRNAMES    = arm thumb
> > MULTILIB_EXCEPTIONS  =
> >   
> > MULTILIB_OPTIONS     = mlittle-endian/mbig-endian
> > MULTILIB_DIRNAMES    = le be
> > MULTILIB_EXCEPTIONS  =
> > MULTILIB_MATCHES     = mbig-endian=mbe mlittle-endian=mle
> >
> > then I compiled gcc with newlib, I found  thumb support was missing:
> >
> >    
>
> You've dropped the "append-to-variable" from the extra options.  Use:
>
> MULTILIB_OPTIONS     = marm/mthumb
> MULTILIB_DIRNAMES    = arm thumb
> MULTILIB_EXCEPTIONS  =
>   
> MULTILIB_OPTIONS     += mlittle-endian/mbig-endian
> MULTILIB_DIRNAMES    += le be
> MULTILIB_EXCEPTIONS  +=
> MULTILIB_MATCHES     += mbig-endian=mbe mlittle-endian=mle
>
>
> R.
>
>
>
>
>  
Oh, yes.  I forgot this file would be included in Makefile so these 
variables are all Makefile variables.  Thank you very much.

Best regards,
Dai yuwen



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