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patches/gcc/4.2.0/240-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jan 22 23:20:18 2011 +0100 (2011-01-22)
changeset 2305 2ed26c646568
parent 111 2e16b9fc302d
permissions -rw-r--r--
scripts: create the makeinfo wrapper before we set PATH

If we set PATH to the tools wrappers before we create the
makeinfo wrapper, then we may well wrap an existing wrapper
from a previous run.

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-4.2.0/gcc/config/arm/linux-elf.h

     7 +++ gcc-4.2.0/gcc/config/arm/linux-elf.h

     8 @@ -28,19 +28,33 @@

     9  #undef  TARGET_VERSION

    10  #define TARGET_VERSION  fputs (" (ARM GNU/Linux with ELF)", stderr);

    11  

    12 +/*

    13 + * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-*

    14 + * (big endian) configurations.

    15 + */

    16 +#if TARGET_BIG_ENDIAN_DEFAULT

    17 +#define TARGET_ENDIAN_DEFAULT MASK_BIG_END

    18 +#define TARGET_ENDIAN_OPTION "mbig-endian"

    19 +#define TARGET_LINKER_EMULATION "armelfb_linux"

    20 +#else

    21 +#define TARGET_ENDIAN_DEFAULT 0

    22 +#define TARGET_ENDIAN_OPTION "mlittle-endian"

    23 +#define TARGET_LINKER_EMULATION "armelf_linux"

    24 +#endif

    25 +

    26  #undef  TARGET_DEFAULT_FLOAT_ABI

    27  #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD

    28  

    29  #undef  TARGET_DEFAULT

    30 -#define TARGET_DEFAULT (0)

    31 +#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)

    32  

    33  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6

    34  

    35 -#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"

    36 +#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"

    37  

    38  #undef  MULTILIB_DEFAULTS

    39  #define MULTILIB_DEFAULTS \

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

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

    42  

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

    44  #undef  LIB_SPEC

    45 @@ -61,7 +75,7 @@

    46     %{rdynamic:-export-dynamic} \

    47     %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \

    48     -X \

    49 -   %{mbig-endian:-EB}" \

    50 +   %{mbig-endian:-EB} %{mlittle-endian:-EL}" \

    51     SUBTARGET_EXTRA_LINK_SPEC

    52  

    53  #undef  LINK_SPEC

    54 --- gcc-4.2.0/gcc/config.gcc.orig	2006-09-22 14:53:41.000000000 +0200

    55 +++ gcc-4.2.0/gcc/config.gcc	2006-09-25 10:45:21.000000000 +0200

    56 @@ -696,6 +696,11 @@

    57  	tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h"

    58  	tmake_file="${tmake_file} t-linux arm/t-arm"

    59  	case ${target} in

    60 +	arm*b-*)

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

    62 +		;;

    63 +	esac

    64 +	case ${target} in

    65  	arm*-*-linux-*eabi)

    66  	    tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h"

    67  	    tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi"
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