Sample config for e500v2 toolchain

On Tuesday 14 October 2008 17:05:31 Nate Case wrote:
> This is a sample config file for Freescale e500v2 processors (e.g.,
> MPC8548, MPC8572). It uses eglibc (for e500/SPE patches) and a recent
> gcc (4.3.1, for e500v2 DPFP support) and will generate appropriate
> dual-precision floating point instructions by default.
>
> Note: If building a Linux kernel with this toolchain, you will want to
> make sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE
> ABI/instructions from getting into the kernel (which is currently
> unsupported). At this time, the kernel build system only passes
> -mno-spe by default (this should be fixed soon hopefully).
>
> A binutils snapshot is used to fix a bug present in 2.18 preventing
> U-Boot from being compiled (CodeSourcery issue #2297: internal.h
> (ELF_IS_SECTION_IN_SEGMENT): Adjust to cope with segments at the end of
> memory).

Obsoletes the powerpc-unknown-linux-gnuspe sample, so remove it.

/trunk/samples/powerpc-e500v2-linux-gnuspe/crosstool.config | 307 307 0 0 +++++++++++++++++++
1 file changed, 307 insertions(+)

 diff -uNpr gcc-4.2.1_orig/gcc/config/rs6000/darwin-ldouble.c gcc-4.2.1/gcc/config/rs6000/darwin-ldouble.c

 --- gcc-4.2.1_orig/gcc/config/rs6000/darwin-ldouble.c	2007-03-05 11:54:00.000000000 -0500

 +++ gcc-4.2.1/gcc/config/rs6000/darwin-ldouble.c	2008-01-31 17:51:24.000000000 -0500

 @@ -70,6 +70,8 @@ Software Foundation, 51 Franklin Street,

     but GCC currently generates poor code when a union is used to turn

     a long double into a pair of doubles.  */

 +#if defined (_SOFT_FLOAT) && defined (__LONG_DOUBLE_128__)

 +

  long double __gcc_qadd (double, double, double, double);

  long double __gcc_qsub (double, double, double, double);

  long double __gcc_qmul (double, double, double, double);

 @@ -219,8 +221,6 @@ __gcc_qdiv (double a, double b, double c

    return z.ldval;

  }

 -#if defined (_SOFT_FLOAT) && defined (__LONG_DOUBLE_128__)

 -

  long double __gcc_qneg (double, double);

  int __gcc_qeq (double, double, double, double);

  int __gcc_qne (double, double, double, double);