Am Mittwoch 30 September 2009 09:57:10 schrieb Simon Kagstrom:
On Wed, 30 Sep 2009 09:40:07 +0200 Dieter Kiermaier dk-arm-linux@gmx.de wrote:
Sounds like you might have problems with USE_PRIVATE_LIBGCC. See this mail for how to test this:
http://lists.denx.de/pipermail/u-boot/2009-August/059313.html
export USE_PRIVATE_LIBGCC=yes seems to solve my problem - even if I don't exactly understand what I'm doing :(
You use a libgcc from uboot/lib_arm, built when you build uboot, instead of the one you built with gcc. Basically you will build this with the same ABI options as you build the rest of uboot, so it will avoid the linker errors you got before.
Ahh, ok. Thanks for pointing this out!
@Prafulla: Hi Prafulla, is there anywhere a document how to build open source u-boot for sheevaplug which explains all these details? (haven't found some documentation about this)
(Wearing my Prafulla hat): I guess this should be described on the plugwiki:
http://www.openplug.org/plugwiki/index.php/Das_U-boot_plug_support#Open_U-bo...
Yes - I know this page but there are no information regarding the latest u-boot changes (e.g. openrd support, movement from git.marvell.com to denx , the toolchain problems...) ;)
but we really just need to solve the EABI problem.
Wolfgang/Stefan/Tom/Prafulla: Would a patch like the one below be acceptable until we find out a proper fix? I realise that this also affects other arm926ejs-boards, but is there some way to isolate this to kirkwood?
// Simon
Again, many thanks for helping!
Dieter
From 29ff02ca77406e820203ad27369e0684aa1a098c Mon Sep 17 00:00:00 2001 From: Simon Kagstrom simon.kagstrom@netinsight.net Date: Fri, 4 Sep 2009 11:15:20 +0200 Subject: [PATCH] Make arm926ejs use -mabi=apcs-gnu and private libgcc
Using -mabi=apcs-gnu allows Marvell Kirkwood-based boards to boot with the EABI changes introduced in commit f772acf8a584067033eff1e231fcd1fb3a00d3d9. Since this changes the ABI, USE_PRIVATE_LIBGCC is also defined.
Signed-off-by: Simon Kagstrom simon.kagstrom@netinsight.net
cpu/arm926ejs/config.mk | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/cpu/arm926ejs/config.mk b/cpu/arm926ejs/config.mk index f8ef90f..1c9d547 100644 --- a/cpu/arm926ejs/config.mk +++ b/cpu/arm926ejs/config.mk @@ -20,10 +20,11 @@ # Foundation, Inc., 59 Temple Place, Suite 330, Boston, # MA 02111-1307 USA # +USE_PRIVATE_LIBGCC = yes
PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-PLATFORM_CPPFLAGS += -march=armv5te +PLATFORM_CPPFLAGS += -march=armv5te -mabi=apcs-gnu # ========================================================================= # # Supply options according to compiler version