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patches/gcc/4.0.3/180-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Jul 28 21:32:33 2008 +0000 (2008-07-28)
changeset 747 d3e603e7c17c
parent 1 patches/gcc/4.0.3/800-arm-bigendian.patch@eeea35fbf182
permissions -rw-r--r--
Fourth step at renaming patches: renumber all patches with a 10-step. 
     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-4.0.3/gcc/config/arm/linux-elf.h

     7 +++ gcc-4.0.3/gcc/config/arm/linux-elf.h

     8 @@ -31,19 +31,33 @@

     9  /* Do not assume anything about header files.  */

    10  #define NO_IMPLICIT_EXTERN_C

    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 ARM_FLAG_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  /* The GNU C++ standard library requires that these macros be defined.  */

    44  #undef CPLUSPLUS_CPP_SPEC

    45 @@ -90,7 +104,7 @@

    46     %{rdynamic:-export-dynamic} \

    47     %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \

    48     -X \

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

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

    51     SUBTARGET_EXTRA_LINK_SPEC

    52  

    53  #define TARGET_OS_CPP_BUILTINS()		\

    54 --- gcc-4.0.3/gcc/config.gcc

    55 +++ gcc-4.0.3/gcc/config.gcc

    56 @@ -672,6 +672,11 @@

    57  	;;

    58  arm*-*-linux*)			# ARM GNU/Linux with ELF

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

    60 +	case $target in

    61 +	arm*b-*)

    62 +		tm_defines="TARGET_BIG_ENDIAN_DEFAULT=1 $tm_defines"

    63 +		;;

    64 +	esac

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

    66  	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"

    67  	gnu_ld=yes
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