Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:

 I tried to use crosstool-ng to generate a toolchain for Linux on big

 endian arm with recent versions of gcc, glibc, etc... but had a few

 problems.

 It appears that the gcc patch (for gcc 4.2.x)

 for big-endian arm (240-arm-bigendian.patch) lacks the change attached

 to this mail as 240-arm-bigendian2.patch.

 --- gcc-4.2.4/gcc/config/arm/bpabi.h~	2007-09-01 17:28:30.000000000 +0200

 +++ gcc-4.2.4/gcc/config/arm/bpabi.h	2009-01-05 19:19:10.000000000 +0100

 @@ -32,9 +32,19 @@

  #undef FPUTYPE_DEFAULT

  #define FPUTYPE_DEFAULT FPUTYPE_VFP

 +/*

 + * '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

 +#else

 +#define TARGET_ENDIAN_DEFAULT 0

 +#endif

 +

  /* EABI targets should enable interworking by default.  */

  #undef TARGET_DEFAULT

 -#define TARGET_DEFAULT MASK_INTERWORK

 +#define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT)

  /* The ARM BPABI functions return a boolean; they use no special

     calling convention.  */