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patches/gcc/4.4.6/130-cross-compile.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed Jun 08 15:47:43 2011 +0200 (2011-06-08)
changeset 2508 9e2761e59a75
parent 2149 98b7806295cc
permissions -rw-r--r--
debug/cross-gdb: check host dependencies

Cross-gdb depends on expat and python. If either is missing, cross-gdb will
build successfully, but lacking some features.

Especially, if expat is missing, cross-gdb will be unable to parse the target
description, which may lead to runtime malfunctions and the following GDB
warning:
"Can not parse XML target description; XML support was disabled at compile time"

Hence, expat should be considered mandatory.

On the other hand, the features missing without python are not critical, so
python should not be considered mandatory.

This patch does the following:
- At configure time, warn the user if either expat or python is missing.
- In menuconfig, disable the static build options regarding cross-gdb if no
static version of expat is available, and disable cross-gdb if expat is
missing.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
[yann.morin.1998@anciens.enib.fr: add comment for impossible static cross-gdb]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 diff -durN gcc-4.4.5.orig/gcc/configure gcc-4.4.5/gcc/configure

     2 --- gcc-4.4.5.orig/gcc/configure	2010-06-20 17:43:53.000000000 +0200

     3 +++ gcc-4.4.5/gcc/configure	2010-10-09 22:58:36.000000000 +0200

     4 @@ -13997,7 +13997,7 @@

     5  	    | powerpc*-*-*,powerpc64*-*-*)

     6  		CROSS="$CROSS -DNATIVE_CROSS" ;;

     7  	esac

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

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

    10          SYSTEM_HEADER_DIR=$build_system_header_dir

    11  fi

    12  

    13 diff -durN gcc-4.4.5.orig/gcc/configure.ac gcc-4.4.5/gcc/configure.ac

    14 --- gcc-4.4.5.orig/gcc/configure.ac	2010-06-20 17:43:53.000000000 +0200

    15 +++ gcc-4.4.5/gcc/configure.ac	2010-10-09 22:58:36.000000000 +0200

    16 @@ -1720,7 +1720,7 @@

    17  	    | powerpc*-*-*,powerpc64*-*-*)

    18  		CROSS="$CROSS -DNATIVE_CROSS" ;;

    19  	esac

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

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

    22          SYSTEM_HEADER_DIR=$build_system_header_dir 

    23  fi

    24  

    25 diff -durN gcc-4.4.5.orig/gcc/unwind-dw2.c gcc-4.4.5/gcc/unwind-dw2.c

    26 --- gcc-4.4.5.orig/gcc/unwind-dw2.c	2010-01-20 09:39:18.000000000 +0100

    27 +++ gcc-4.4.5/gcc/unwind-dw2.c	2010-10-09 22:58:36.000000000 +0200

    28 @@ -329,9 +329,11 @@

    29  }

    30  #endif

    31  

    32 +#ifndef inhibit_libc

    33  #ifdef MD_UNWIND_SUPPORT

    34  #include MD_UNWIND_SUPPORT

    35  #endif

    36 +#endif

    37  

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

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