crosstool-ng: patches/gmp/4.2.2/100-mpf_set

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(+)

     1 Original patch from http://gmplib.org/patches/mpf_set_str.c.diff

     2 Re-diffed to match crosstool-NG conventions.

     4 diff -dur gmp-4.2.2.orig/mpf/set_str.c gmp-4.2.2/mpf/set_str.c

     5 --- gmp-4.2.2.orig/mpf/set_str.c	2007-08-30 20:31:40.000000000 +0200

     6 +++ gmp-4.2.2/mpf/set_str.c	2008-01-28 23:05:29.000000000 +0100

     7 @@ -271,8 +271,29 @@

     8        }

    10      if (expptr != 0)

    11 -      /* FIXME: Should do some error checking here.  */

    12 -      exp_in_base = strtol (expptr, (char **) 0, exp_base);

    13 +      {

    14 +	/* Scan and convert the exponent, in base exp_base.  */

    15 +	long dig, neg = -(long) ('-' == expptr[0]);

    16 +	expptr -= neg;			/* conditional increment */

    17 +	c = (unsigned char) *expptr++;

    18 +	dig = digit_value[c];

    19 +	if (dig >= exp_base)

    20 +	  {

    21 +	    TMP_FREE;

    22 +	    return -1;

    23 +	  }

    24 +	exp_in_base = dig;

    25 +	c = (unsigned char) *expptr++;

    26 +	dig = digit_value[c];

    27 +	while (dig < exp_base)

    28 +	  {

    29 +	    exp_in_base = exp_in_base * exp_base;

    30 +	    exp_in_base += dig;

    31 +	    c = (unsigned char) *expptr++;

    32 +	    dig = digit_value[c];

    33 +	  }

    34 +	exp_in_base = (exp_in_base ^ neg) - neg; /* conditional negation */

    35 +      }

    36      else

    37        exp_in_base = 0;

    38      if (dotpos != 0)

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Tue Oct 14 17:42:10 2008 +0000 (2008-10-14)
changeset 929	7c958fb04f28
permissions	-rw-r--r--