crosstool-ng: patches/gcc/4.4.0/360-arm-bigendian.patch@9e2761e59a75

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 By Lennert Buytenhek <buytenh@wantstofly.org>

     2 Adds support for arm*b-linux* big-endian ARM targets

     4 See http://gcc.gnu.org/PR16350

     6 --- gcc-4.4.2.orig/gcc/config/arm/linux-elf.h	2009-02-20 16:20:38.000000000 +0100

     7 +++ gcc-4.4.2/gcc/config/arm/linux-elf.h	2009-12-31 14:19:20.000000000 +0100

     8 @@ -51,7 +51,7 @@

    10  #undef  MULTILIB_DEFAULTS

    11  #define MULTILIB_DEFAULTS \

    12 -	{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }

    13 +	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }

    15  /* Now we define the strings used to build the spec file.  */

    16  #undef  LIB_SPEC

    17 diff -ru gcc-4.4.2.orig/gcc/config.gcc gcc-4.4.2/gcc/config.gcc

    18 --- gcc-4.4.2.orig/gcc/config.gcc	2009-12-31 14:43:17.000000000 +0100

    19 +++ gcc-4.4.2/gcc/config.gcc	2010-01-05 09:27:42.000000000 +0100

    20 @@ -733,6 +733,11 @@

    21  	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/linux-gas.h arm/uclinux-elf.h"

    22  	tmake_file="arm/t-arm arm/t-arm-elf"

    23  	case ${target} in

    24 +	arm*b-*)

    25 +		tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"

    26 +		;;

    27 +	esac

    28 +	case ${target} in

    29  	arm*-*-uclinux*eabi)

    30  	    tm_file="$tm_file arm/bpabi.h arm/uclinux-eabi.h"

    31  	    tmake_file="$tmake_file arm/t-bpabi"

author	"Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
	Wed Jun 08 15:47:43 2011 +0200 (2011-06-08)
changeset 2508	9e2761e59a75
permissions	-rw-r--r--