| author | "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
| Sun Sep 12 23:51:25 2010 +0200 (2010-09-12) | |
| changeset 2123 | ff2181adbd28 |
| permissions | -rw-r--r-- |
| yann@1128 | 1 |
Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote: |
| yann@1128 | 2 |
|
| yann@1128 | 3 |
I tried to use crosstool-ng to generate a toolchain for Linux on big |
| yann@1128 | 4 |
endian arm with recent versions of gcc, glibc, etc... but had a few |
| yann@1128 | 5 |
problems. |
| yann@1128 | 6 |
|
| yann@1128 | 7 |
It appears that the gcc patch (for gcc 4.2.x) |
| yann@1128 | 8 |
for big-endian arm (240-arm-bigendian.patch) lacks the change attached |
| yann@1128 | 9 |
to this mail as 240-arm-bigendian2.patch. |
| yann@1128 | 10 |
|
| yann@1128 | 11 |
--- gcc-4.2.4/gcc/config/arm/bpabi.h~ 2007-09-01 17:28:30.000000000 +0200 |
| yann@1128 | 12 |
+++ gcc-4.2.4/gcc/config/arm/bpabi.h 2009-01-05 19:19:10.000000000 +0100 |
| yann@1128 | 13 |
@@ -32,9 +32,19 @@ |
| yann@1128 | 14 |
#undef FPUTYPE_DEFAULT |
| yann@1128 | 15 |
#define FPUTYPE_DEFAULT FPUTYPE_VFP |
| yann@1128 | 16 |
|
| yann@1128 | 17 |
+/* |
| yann@1128 | 18 |
+ * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-* |
| yann@1128 | 19 |
+ * (big endian) configurations. |
| yann@1128 | 20 |
+ */ |
| yann@1128 | 21 |
+#if TARGET_BIG_ENDIAN_DEFAULT |
| yann@1128 | 22 |
+#define TARGET_ENDIAN_DEFAULT MASK_BIG_END |
| yann@1128 | 23 |
+#else |
| yann@1128 | 24 |
+#define TARGET_ENDIAN_DEFAULT 0 |
| yann@1128 | 25 |
+#endif |
| yann@1128 | 26 |
+ |
| yann@1128 | 27 |
/* EABI targets should enable interworking by default. */ |
| yann@1128 | 28 |
#undef TARGET_DEFAULT |
| yann@1128 | 29 |
-#define TARGET_DEFAULT MASK_INTERWORK |
| yann@1128 | 30 |
+#define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT) |
| yann@1128 | 31 |
|
| yann@1128 | 32 |
/* The ARM BPABI functions return a boolean; they use no special |
| yann@1128 | 33 |
calling convention. */ |