crosstool-ng: patches/gcc/4.2.0/270-soft-float.patch@fdaa6c7f6dea

cc/gcc: add option to compile against static libstdc++, for gcc-4.4 and newer

Idea and know-how taken from CodeSourcery build script.

Normal build:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb77f3000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb76e8000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb75a1000)
libm.so.6 => /lib/i686/cmov/libm.so.6 (0xb757a000)
/lib/ld-linux.so.2 (0xb77f4000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb755c000)

CC_STATIC_LIBSTDCXX=y:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb7843000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb76e6000)
/lib/ld-linux.so.2 (0xb7844000)

I made CC_STATIC_LIBSTDCXX default=y since I think
it is always desirable.

Signed-off-by: Johannes Stezenbach <js@sig21.net>

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

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

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

     4 @@ -70,6 +70,8 @@ Software Foundation, 51 Franklin Street,

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

     6     a long double into a pair of doubles.  */

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

9 +

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

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

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

    13 @@ -219,8 +221,6 @@ __gcc_qdiv (double a, double b, double c

    14    return z.ldval;

    15  }

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

    18 -

    19  long double __gcc_qneg (double, double);

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

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

author	Johannes Stezenbach <js@sig21.net>
	Thu Jul 29 19:47:16 2010 +0200 (2010-07-29)
changeset 2045	fdaa6c7f6dea
parent 616	6e78f7085707
permissions	-rw-r--r--