crosstool-ng: patches/gcc/4.0.0/110-arm-bigendian.patch@439a6b292917

     1 By Lennert Buytenhek <buytenh@wantstofly.org>

     2 Adds support for arm*b-linux* big-endian ARM targets

     4 Fixes following build error for big-endian ARM targets:

     6 armeb-unknown-linux-gnu/gcc-4.0.0-20050410-glibc-2.3.4/bin/../lib/gcc/armeb-unknown-linux-gnu/4.0.0/../../../../armeb-unknown-linux-gnu/bin/ld: unrecognised emulation mode: armelf_linux

     7 Supported emulations: armelfb_linux armelfb

     8 collect2: ld returned 1 exit status

     9 make[2]: *** [crosstool-0.32/build/armeb-unknown-linux-gnu/gcc-4.0.0-20050410-glibc-2.3.4/build-glibc/csu/crt1.o] Error 1

    10 make[2]: Leaving directory `crosstool-0.32/build/armeb-unknown-linux-gnu/gcc-4.0.0-20050410-glibc-2.3.4/glibc-2.3.4/csu'

    11 make[1]: *** [csu/subdir_lib] Error 2

    12 make[1]: Leaving directory `crosstool-0.32/build/armeb-unknown-linux-gnu/gcc-4.0.0-20050410-glibc-2.3.4/glibc-2.3.4'

    13 make: *** [lib] Error 2

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

    18 --- gcc-4.0-20050305/gcc/config/arm/linux-elf.h.orig	2005-03-23 18:44:54.822707377 +0100

    19 +++ gcc-4.0-20050305/gcc/config/arm/linux-elf.h	2005-03-23 18:46:18.228560206 +0100

    20 @@ -31,19 +31,33 @@

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

    22  #define NO_IMPLICIT_EXTERN_C

    24 +/*

    25 + * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for

    26 + * arm*b-*-linux* (big endian) configurations.

    27 + */

    28 +#if TARGET_BIG_ENDIAN_DEFAULT

    29 +#define TARGET_ENDIAN_DEFAULT ARM_FLAG_BIG_END

    30 +#define TARGET_ENDIAN_OPTION "mbig-endian"

    31 +#define TARGET_LINKER_EMULATION "armelfb_linux"

    32 +#else

    33 +#define TARGET_ENDIAN_DEFAULT 0

    34 +#define TARGET_ENDIAN_OPTION "mlittle-endian"

    35 +#define TARGET_LINKER_EMULATION "armelf_linux"

    36 +#endif

    37 +

    38  #undef  TARGET_DEFAULT_FLOAT_ABI

    39  #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD

    41  #undef  TARGET_DEFAULT

    42 -#define TARGET_DEFAULT (0)

    43 +#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)

    45  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6

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

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

    50  #undef  MULTILIB_DEFAULTS

    51  #define MULTILIB_DEFAULTS \

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

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

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

    56  #undef CPLUSPLUS_CPP_SPEC

    57 @@ -90,7 +104,7 @@

    58     %{rdynamic:-export-dynamic} \

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

    60     -X \

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

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

    63     SUBTARGET_EXTRA_LINK_SPEC

    65  #define TARGET_OS_CPP_BUILTINS()		\

    66 --- gcc-4.0-20050305/gcc/config.gcc.orig	2005-03-23 18:46:23.318105335 +0100

    67 +++ gcc-4.0-20050305/gcc/config.gcc	2005-03-23 18:47:41.592546386 +0100

    68 @@ -650,6 +650,11 @@

    69  	;;

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

    71  	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"

    72 +	case $target in

    73 +	arm*b-*-linux*)

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

    75 +		;;

    76 +	esac

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

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

    79  	gnu_ld=yes

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Fri Sep 04 17:27:16 2009 +0200 (2009-09-04)
changeset 1512	439a6b292917
parent 402	197e1b49586e
permissions	-rw-r--r--