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patches/gcc/4.3.0/130-cross-compile.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Oct 14 17:42:10 2008 +0000 (2008-10-14)
changeset 929 7c958fb04f28
parent 746 b150d6f590fc
permissions -rw-r--r--
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 gentoo: gentoo/src/patchsets/gcc/4.3.0/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-4.3.0.orig/gcc/configure gcc-4.3.0/gcc/configure

     7 --- gcc-4.3.0.orig/gcc/configure	2008-03-05 00:39:11.000000000 +0100

     8 +++ gcc-4.3.0/gcc/configure	2008-06-10 14:44:17.000000000 +0200

     9 @@ -13274,7 +13274,7 @@

    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-4.3.0.orig/gcc/configure.ac gcc-4.3.0/gcc/configure.ac

    19 --- gcc-4.3.0.orig/gcc/configure.ac	2008-03-05 00:39:11.000000000 +0100

    20 +++ gcc-4.3.0/gcc/configure.ac	2008-06-10 14:44:17.000000000 +0200

    21 @@ -1745,7 +1745,7 @@

    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-4.3.0.orig/gcc/unwind-dw2.c gcc-4.3.0/gcc/unwind-dw2.c

    31 --- gcc-4.3.0.orig/gcc/unwind-dw2.c	2007-07-25 20:14:57.000000000 +0200

    32 +++ gcc-4.3.0/gcc/unwind-dw2.c	2008-06-10 14:44:17.000000000 +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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