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patches/gcc/4.3.3/130-cross-compile.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 12 23:38:18 2010 +0200 (2010-09-12)
changeset 2120 48de021b3a9e
permissions -rw-r--r--
arch/mips: add experimental mips64 samples

Both toolchains were tested to successfully:
- _build_ busybox, giving respectively an n32 and an n64 binary
although it has not been run-tested.
- build linux-2.6.36-rc3 for Loongson, giving an n64 vmlinux
(which is expected, due to the way the kernel is built),
and the kernel properly boots!

Credits are due to Julien MOUTHINO (julm on freenode#uClibc) for
testing that the kernel boots on his hardware! Cheers! ;-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Original patch from: ../4.3.2/130-cross-compile.patch

     2 

     3 -= BEGIN original header =-

     4 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/08_all_gcc-4.1-cross-compile.patch

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

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

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

     8 

     9 -= END original header =-

    10 

    11 diff -durN gcc-4.3.3.orig/gcc/configure gcc-4.3.3/gcc/configure

    12 --- gcc-4.3.3.orig/gcc/configure	2008-08-01 11:51:03.000000000 +0200

    13 +++ gcc-4.3.3/gcc/configure	2009-01-27 22:19:16.000000000 +0100

    14 @@ -13442,7 +13442,7 @@

    15  	    | powerpc*-*-*,powerpc64*-*-*)

    16  		CROSS="$CROSS -DNATIVE_CROSS" ;;

    17  	esac

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

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

    20          SYSTEM_HEADER_DIR=$build_system_header_dir

    21  fi

    22  

    23 diff -durN gcc-4.3.3.orig/gcc/configure.ac gcc-4.3.3/gcc/configure.ac

    24 --- gcc-4.3.3.orig/gcc/configure.ac	2008-08-01 11:51:03.000000000 +0200

    25 +++ gcc-4.3.3/gcc/configure.ac	2009-01-27 22:19:16.000000000 +0100

    26 @@ -1749,7 +1749,7 @@

    27  	    | powerpc*-*-*,powerpc64*-*-*)

    28  		CROSS="$CROSS -DNATIVE_CROSS" ;;

    29  	esac

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

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

    32          SYSTEM_HEADER_DIR=$build_system_header_dir 

    33  fi

    34  

    35 diff -durN gcc-4.3.3.orig/gcc/unwind-dw2.c gcc-4.3.3/gcc/unwind-dw2.c

    36 --- gcc-4.3.3.orig/gcc/unwind-dw2.c	2008-09-25 00:44:28.000000000 +0200

    37 +++ gcc-4.3.3/gcc/unwind-dw2.c	2009-01-27 22:19:16.000000000 +0100

    38 @@ -334,9 +334,11 @@

    39  }

    40  #endif

    41  

    42 +#ifndef inhibit_libc

    43  #ifdef MD_UNWIND_SUPPORT

    44  #include MD_UNWIND_SUPPORT

    45  #endif

    46 +#endif

    47  

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

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