yann@111: By Lennert Buytenhek <buytenh@wantstofly.org>
yann@111: Adds support for arm*b-linux* big-endian ARM targets
yann@111: 
yann@111: See http://gcc.gnu.org/PR16350
yann@111: 
yann@111: --- gcc-4.2.0/gcc/config/arm/linux-elf.h
yann@111: +++ gcc-4.2.0/gcc/config/arm/linux-elf.h
yann@111: @@ -28,19 +28,33 @@
yann@111:  #undef  TARGET_VERSION
yann@111:  #define TARGET_VERSION  fputs (" (ARM GNU/Linux with ELF)", stderr);
yann@111:  
yann@111: +/*
yann@111: + * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-*
yann@111: + * (big endian) configurations.
yann@111: + */
yann@111: +#if TARGET_BIG_ENDIAN_DEFAULT
yann@111: +#define TARGET_ENDIAN_DEFAULT MASK_BIG_END
yann@111: +#define TARGET_ENDIAN_OPTION "mbig-endian"
yann@111: +#define TARGET_LINKER_EMULATION "armelfb_linux"
yann@111: +#else
yann@111: +#define TARGET_ENDIAN_DEFAULT 0
yann@111: +#define TARGET_ENDIAN_OPTION "mlittle-endian"
yann@111: +#define TARGET_LINKER_EMULATION "armelf_linux"
yann@111: +#endif
yann@111: +
yann@111:  #undef  TARGET_DEFAULT_FLOAT_ABI
yann@111:  #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
yann@111:  
yann@111:  #undef  TARGET_DEFAULT
yann@111: -#define TARGET_DEFAULT (0)
yann@111: +#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
yann@111:  
yann@111:  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
yann@111:  
yann@111: -#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
yann@111: +#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
yann@111:  
yann@111:  #undef  MULTILIB_DEFAULTS
yann@111:  #define MULTILIB_DEFAULTS \
yann@111: -	{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
yann@111: +	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }
yann@111:  
yann@111:  /* Now we define the strings used to build the spec file.  */
yann@111:  #undef  LIB_SPEC
yann@111: @@ -61,7 +75,7 @@
yann@111:     %{rdynamic:-export-dynamic} \
yann@111:     %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
yann@111:     -X \
yann@111: -   %{mbig-endian:-EB}" \
yann@111: +   %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
yann@111:     SUBTARGET_EXTRA_LINK_SPEC
yann@111:  
yann@111:  #undef  LINK_SPEC
yann@111: --- gcc-4.2.0/gcc/config.gcc.orig	2006-09-22 14:53:41.000000000 +0200
yann@111: +++ gcc-4.2.0/gcc/config.gcc	2006-09-25 10:45:21.000000000 +0200
yann@111: @@ -696,6 +696,11 @@
yann@111:  	tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h"
yann@111:  	tmake_file="${tmake_file} t-linux arm/t-arm"
yann@111:  	case ${target} in
yann@111: +	arm*b-*)
yann@111: +		tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
yann@111: +		;;
yann@111: +	esac
yann@111: +	case ${target} in
yann@111:  	arm*-*-linux-*eabi)
yann@111:  	    tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h"
yann@111:  	    tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi"