By Lennert Buytenhek Adds support for arm*b-linux* big-endian ARM targets See http://gcc.gnu.org/PR16350 Index: gcc-4.2.3/gcc/config/arm/linux-elf.h =================================================================== --- gcc-4.2.3.orig/gcc/config/arm/linux-elf.h 2007-09-01 17:28:30.000000000 +0200 +++ gcc-4.2.3/gcc/config/arm/linux-elf.h 2008-05-21 13:45:53.349289241 +0200 @@ -27,19 +27,33 @@ #undef TARGET_VERSION #define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr); +/* + * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-* + * (big endian) configurations. + */ +#if TARGET_BIG_ENDIAN_DEFAULT +#define TARGET_ENDIAN_DEFAULT MASK_BIG_END +#define TARGET_ENDIAN_OPTION "mbig-endian" +#define TARGET_LINKER_EMULATION "armelfb_linux" +#else +#define TARGET_ENDIAN_DEFAULT 0 +#define TARGET_ENDIAN_OPTION "mlittle-endian" +#define TARGET_LINKER_EMULATION "armelf_linux" +#endif + #undef TARGET_DEFAULT_FLOAT_ABI #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD #undef TARGET_DEFAULT -#define TARGET_DEFAULT (0) +#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT) #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6 -#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p" +#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p" #undef MULTILIB_DEFAULTS #define MULTILIB_DEFAULTS \ - { "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" } + { "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" } /* Now we define the strings used to build the spec file. */ #undef LIB_SPEC @@ -60,7 +74,7 @@ %{rdynamic:-export-dynamic} \ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \ -X \ - %{mbig-endian:-EB}" \ + %{mbig-endian:-EB} %{mlittle-endian:-EL}" \ SUBTARGET_EXTRA_LINK_SPEC #undef LINK_SPEC Index: gcc-4.2.3/gcc/config.gcc =================================================================== --- gcc-4.2.3.orig/gcc/config.gcc 2008-05-21 13:45:43.333288320 +0200 +++ gcc-4.2.3/gcc/config.gcc 2008-05-21 13:45:53.353287795 +0200 @@ -708,6 +708,11 @@ tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h" tmake_file="${tmake_file} t-linux arm/t-arm" case ${target} in + arm*b-*) + tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1" + ;; + esac + case ${target} in arm*-*-linux-*eabi) tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h" tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi"