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patches/gcc/4.4.3/360-arm-bigendian.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
parent 1693 5cf9544bcea1
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
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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