[U-Boot] which toolchain version for Microblaze

[Michal Simek]

Hi Stephan,

2012/10/12 Stephan Linz <linz at li-pro.net>:
> Hi Michal,
> Hi David
>
> which version of binutils and gcc you are currently using for embedded
> Linux development? Just now I've played a little bit with the new one
> I've found in the Xilinx git repository on:
>
> git://git.xilinx.com/microblaze-gnu.git
>
> Unfortunately both the binaries and the sources seems to be buggy. When
> I try to compile U-Boot with it the final linker stage runs into a
> SIGSEGV -- here is the (reduced) output:
>
>
> UNDEF_SYM=`microblaze-unknown-linux-gnu-objdump -x
> board/xilinx/microblaze-generic/libmicroblaze-generic.o api/libapi.o
> arch/microblaze/cpu/libmicroblaze.o arch/microblaze/lib/libmicroblaze.o
> **/*.o | sed  -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;
> cd /store/devel/MICROBLAZE/u-boot-mbref &&
> microblaze-unknown-linux-gnu-ld.bfd  -T u-boot.lds -Bstatic -Ttext
> 0x29000000 $UNDEF_SYM arch/microblaze/cpu/start.o --start-group
> api/libapi.o arch/microblaze/cpu/libmicroblaze.o
> arch/microblaze/lib/libmicroblaze.o **/*.o
> board/xilinx/microblaze-generic/libmicroblaze-generic.o --end-group
> -L /opt/tools-4.6.2-mb-xilinx-v3.0/microblaze-unknown-linux-gnu/bin/../lib/gcc/microblaze-unknown-linux-gnu/4.6.2 -lgcc -Map u-boot.map -o u-boot
>
> /opt/tools-4.6.2-mb-xilinx-v3.0/microblaze-unknown-linux-gnu/bin/../lib/gcc/microblaze-unknown-linux-gnu/4.6.2/libgcc.a(_muldi3.o): In function `__muldi3':
> /home/buildbot/plgx_bld/xils005/2012_06_30/toolchains/lin32-microblaze-xilinx-linux-gnu/crosstool-ng/targets/src/gcc-4.6.2/libgcc/../gcc/libgcc2.c:549: undefined reference to `_GLOBAL_OFFSET_TABLE_'
> /bin/sh: line 1: 17792 Segmentation fault
>

This is bug in the toolchain if you hw has this setup BS=1, MUL=0,
DIV=0 and maybe others combination with MUL=0 setup.

We are working on fixing it.

Thanks,
Michal


-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian