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patches/gcc/4.3.2/130-cross-compile.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
parent 747 d3e603e7c17c
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/08_all_gcc-4.1-cross-compile.patch

     2 Some notes on the 'bootstrap with or without libc headers' debate:

     3 http://linuxfromscratch.org/pipermail/lfs-dev/2005-July/052409.html

     4 http://gcc.gnu.org/ml/gcc/2005-07/msg01195.html

     5 

     6 diff -durN gcc-4.3.2.orig/gcc/configure gcc-4.3.2/gcc/configure

     7 --- gcc-4.3.2.orig/gcc/configure	2008-08-01 11:51:03.000000000 +0200

     8 +++ gcc-4.3.2/gcc/configure	2008-09-23 19:39:43.000000000 +0200

     9 @@ -13442,7 +13442,7 @@

    10  	    | powerpc*-*-*,powerpc64*-*-*)

    11  		CROSS="$CROSS -DNATIVE_CROSS" ;;

    12  	esac

    13 -elif test "x$TARGET_SYSTEM_ROOT" != x; then

    14 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then

    15          SYSTEM_HEADER_DIR=$build_system_header_dir

    16  fi

    17  

    18 diff -durN gcc-4.3.2.orig/gcc/configure.ac gcc-4.3.2/gcc/configure.ac

    19 --- gcc-4.3.2.orig/gcc/configure.ac	2008-08-01 11:51:03.000000000 +0200

    20 +++ gcc-4.3.2/gcc/configure.ac	2008-09-23 19:39:43.000000000 +0200

    21 @@ -1749,7 +1749,7 @@

    22  	    | powerpc*-*-*,powerpc64*-*-*)

    23  		CROSS="$CROSS -DNATIVE_CROSS" ;;

    24  	esac

    25 -elif test "x$TARGET_SYSTEM_ROOT" != x; then

    26 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then

    27          SYSTEM_HEADER_DIR=$build_system_header_dir 

    28  fi

    29  

    30 diff -durN gcc-4.3.2.orig/gcc/unwind-dw2.c gcc-4.3.2/gcc/unwind-dw2.c

    31 --- gcc-4.3.2.orig/gcc/unwind-dw2.c	2007-07-25 20:14:57.000000000 +0200

    32 +++ gcc-4.3.2/gcc/unwind-dw2.c	2008-09-23 19:39:43.000000000 +0200

    33 @@ -334,9 +334,11 @@

    34  }

    35  #endif

    36  

    37 +#ifndef inhibit_libc

    38  #ifdef MD_UNWIND_SUPPORT

    39  #include MD_UNWIND_SUPPORT

    40  #endif

    41 +#endif

    42  

    43  /* Extract any interesting information from the CIE for the translation

    44     unit F belongs to.  Return a pointer to the byte after the augmentation,
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