cross compile?

[Matt Sealey]

Okay, FreeBSD 5.1 compiles for PPC using a cross-compiler, I
practically expected that.

But how do we ./configure the recommended GCC for FreeBSD PPC?
What's the "official" target name?

-- 
Matt Sealey <matt at kittycat.co.uk> 


> -----Original Message-----
> From: Peter Grehan [mailto:grehan at freebsd.org]
> Sent: 03 December 2003 01:13
> To: matt at niblet.co.uk
> Cc: David Leimbach; freebsd-ppc at freebsd.org
> Subject: Re: cross compile?
> 
> 
> > I have a FreeBSD 5.1 machine here anyway. Knocking up a PPC version
> > on it for my Pegasos would be a sweet deal.
> 
>   You're all set - FreeBSD already cross-compiles:
> 
> cd /usr/src
> make -DNO_WERROR TARGET_ARCH=powerpc buildworld
> make -DNO_WERROR TARGET_ARCH=powerpc buildkernel
> 
>   I've made two changes that might be required:
> 
> RCS file: /usr/home/ncvs/src/lib/libc/powerpc/_fpmath.h,v
> diff -u -r1.2 _fpmath.h
> --- _fpmath.h   5 Apr 2003 22:10:13 -0000       1.2
> +++ _fpmath.h   18 Nov 2003 02:41:36 -0000
> @@ -29,14 +29,13 @@
>   union IEEEl2bits {
>          long double     e;
>          struct {
> -               unsigned int    sign    :1;
> -               unsigned int    exp     :15;
> -               unsigned long   manh    :48;
> -               unsigned long   manl    :64;
> +               unsigned int            sign    :1;
> +               unsigned int            exp     :15;
> +               unsigned long long      manh    :48;
> +               unsigned long long      manl    :64;
>          } bits;
>   };
> 
> -/* XXX does powerpc have a normalization bit? */
>   #define        mask_nbit_l(u)  ((void)0)
>   #define        LDBL_IMPLICIT_NBIT
> 
> RCS file: /usr/home/ncvs/src/sys/conf/kern.mk,v
> retrieving revision 1.37
> diff -u -r1.37 kern.mk
> --- kern.mk     4 Nov 2003 23:29:17 -0000       1.37
> +++ kern.mk     18 Nov 2003 03:42:58 -0000
> @@ -68,6 +68,14 @@
>   .endif
> 
>   #
> +# For powerpc disable kernel floating point
> +#
> +.if ${MACHINE_ARCH} == "powerpc"
> +CFLAGS+=       -msoft-float
> +INLINE_LIMIT?= 15000
> +.endif
> +
> +#
>   # GCC 3.0 and above like to do certain optimizations based on the
>   # assumption that the program is linked against libc.  Stop this.
>   #
> 
>