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.  */