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patches/gcc/4.4.0/360-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

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

     3 

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

     5 

     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 @@

     9  

    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" }

    14  

    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"

    32
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