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patches/gcc/3.4.6/220-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Dec 30 15:36:22 2009 +0100 (2009-12-30)
changeset 1669 61edd9d19e3c
parent 339 bd5e0a849352
permissions -rw-r--r--
scripts/functions: add aria2, a powerfull downloader

aria2 is a powerfull downloader that is capable of chunking and
parallel retrieval.

Due to li;itations in crosstool-NG retrieval facilities, it's not possible
to take fully advantage of aria2. It might happen that, in the future,
those limitations get lifted away, so we can take use features such as
parallel downloading from more than one server at the same time. For now,
it should still speed up downloads thanks to parallel downloading of chunks. 
     1 diff -durN gcc-3.4.6.orig/gcc/config/arm/linux-elf.h gcc-3.4.6/gcc/config/arm/linux-elf.h

     2 --- gcc-3.4.6.orig/gcc/config/arm/linux-elf.h	2007-08-15 22:51:01.000000000 +0200

     3 +++ gcc-3.4.6/gcc/config/arm/linux-elf.h	2007-08-15 23:05:42.000000000 +0200

     4 @@ -30,17 +30,34 @@

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

     6  #define NO_IMPLICIT_EXTERN_C

     7  

     8 +/*

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

    10 + * (big endian) configurations.

    11 + */

    12 +#if TARGET_BIG_ENDIAN_DEFAULT

    13 +#define TARGET_ENDIAN_DEFAULT ARM_FLAG_BIG_END

    14 +#define TARGET_ENDIAN_OPTION "mbig-endian"

    15 +#define TARGET_LINKER_EMULATION "armelfb_linux"

    16 +#else

    17 +#define TARGET_ENDIAN_DEFAULT 0

    18 +#define TARGET_ENDIAN_OPTION "mlittle-endian"

    19 +#define TARGET_LINKER_EMULATION "armelf_linux"

    20 +#endif

    21 +

    22  /* Default is to use APCS-32 mode.  */

    23  #undef  TARGET_DEFAULT

    24 -#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS)

    25 +#define TARGET_DEFAULT \

    26 +		( ARM_FLAG_APCS_32 | \

    27 +		  ARM_FLAG_MMU_TRAPS | \

    28 +		  TARGET_ENDIAN_DEFAULT )

    29  

    30  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6

    31  

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

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

    34  

    35  #undef  MULTILIB_DEFAULTS

    36  #define MULTILIB_DEFAULTS \

    37 -	{ "marm", "mlittle-endian", "mhard-float", "mapcs-32", "mno-thumb-interwork" }

    38 +	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mapcs-32", "mno-thumb-interwork" }

    39  

    40  #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"

    41  

    42 @@ -94,7 +111,7 @@

    43     %{rdynamic:-export-dynamic} \

    44     %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "} \

    45     -X \

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

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

    48     SUBTARGET_EXTRA_LINK_SPEC

    49  

    50  #define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()

    51 diff -durN gcc-3.4.6.orig/gcc/config.gcc gcc-3.4.6/gcc/config.gcc

    52 --- gcc-3.4.6.orig/gcc/config.gcc	2007-08-15 22:51:01.000000000 +0200

    53 +++ gcc-3.4.6/gcc/config.gcc	2007-08-15 23:05:42.000000000 +0200

    54 @@ -678,6 +678,11 @@

    55  	;;

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

    57  	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"

    58 +	case $target in

    59 +	arm*b-*)

    60 +		tm_defines="TARGET_BIG_ENDIAN_DEFAULT=1 $tm_defines"

    61 +		;;

    62 +	esac

    63  	tmake_file="t-slibgcc-elf-ver t-linux arm/t-linux"

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

    65  	gnu_ld=yes
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