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Re: Anyone been able to build armeb-unknown-linux-uclibcgnueabi with GCC 4.4.x yet?


Hi Yann!

On 12/31/2009 04:55 PM, Yann E. MORIN wrote:
On Thursday 31 December 2009 16:33:36 Joachim Nilsson wrote:
If it is comment 24 for #16350,
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16350#c24 ...
Well, it's nearly new year's eve here in France, and I have stuff to
prepare for the celebrations. Will see that next year!

The referenced patch, with some slight modification, is actually useful for big-endian Arm -- even though it didn't turn out to be much help with this particular bug. See the attached revised patch by Lennert Buytenhek for details.


Also, while researching this bug I found several binutils 2.20 related patches in the OpenEmbedded camp which might be interesting to include in crosstool-NG.

Since I've gotten the big-endian Arm toolchain to build now on 32-bit (using --disable-shared) I will start testing the patched binutils in real-life. I'll get back to the list with further updates.

Regards
 /Joachim


Regards /Joachim

By Lennert Buytenhek <buytenh@wantstofly.org>
Adds support for arm*b-linux* big-endian ARM targets

See http://gcc.gnu.org/PR16350

--- gcc-4.4.2.orig/gcc/config/arm/linux-elf.h	2009-02-20 16:20:38.000000000 +0100
+++ gcc-4.4.2/gcc/config/arm/linux-elf.h	2009-12-31 14:19:20.000000000 +0100
@@ -51,7 +51,7 @@
 
 #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
diff -ru gcc-4.4.2.orig/gcc/config.gcc gcc-4.4.2/gcc/config.gcc
--- gcc-4.4.2.orig/gcc/config.gcc	2009-12-31 14:43:17.000000000 +0100
+++ gcc-4.4.2/gcc/config.gcc	2010-01-05 09:27:42.000000000 +0100
@@ -733,6 +733,11 @@
 	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/linux-gas.h arm/uclinux-elf.h"
 	tmake_file="arm/t-arm arm/t-arm-elf"
 	case ${target} in
+	arm*b-*)
+		tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
+		;;
+	esac
+	case ${target} in
 	arm*-*-uclinux*eabi)
 	    tm_file="$tm_file arm/bpabi.h arm/uclinux-eabi.h"
 	    tmake_file="$tmake_file arm/t-bpabi"

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