Re: Emdebian Crush on Sparc32

[Dimitris Lampridis <dlampridis@gmail.com>]

On Tue, 10 Feb 2009 13:50:30 +0100
Hector Oron <hector.oron@gmail.com> wrote:

> Hello Dimitris,
> 
>  As a quick reply I abandon cross compiler building for other arches
> but arm | armel, because we had no users and it is a bit time
> consuming. It is known that many of the mutilib'd toolchains with
> different ABIs fail to build (on gcc-4.3, but does fine for 4.2 and
> 4.1), that could just be avoided disabling multiarch on debian/
> scripts.
> 
>  If you like we can try to build and fix gcc-4.3. In other cases,
> give me some time to try to build 4.2 and 4.1 for sparc. (i'll do it
> for unstable if you agree)
> 
> Regards
> 

Hi Hector,

I just tried building the sparc toolchain with gcc-4.3 on a clean debian
unstable installation. It failed while building gcc-4.3 with the
following errors:

/usr/sparc-linux-gnu/bin/ld: skipping
incompatible /usr/sparc-linux-gnu/lib/libc.so when searching for
-lc 
/usr/sparc-linux-gnu/bin/ld: skipping
incompatible /usr/sparc-linux-gnu/lib/libc.a when searching for
-lc 
/usr/sparc-linux-gnu/bin/ld: skipping
incompatible /usr/lib64/libc.so when searching for
-lc 
/usr/sparc-linux-gnu/bin/ld: skipping
incompatible /usr/lib64/libc.a when searching for
-lc 
/usr/sparc-linux-gnu/bin/ld: skipping
incompatible /usr/sparc-linux-gnu/bin/../../lib/libc.so when searching
for -lc 
/usr/sparc-linux-gnu/bin/ld: skipping
incompatible /usr/sparc-linux-gnu/bin/../../lib/libc.a when searching
for -lc 
/usr/sparc-linux-gnu/bin/ld: sparc:v8plus architecture of input
file `/usr/sparc-linux-gnu/lib/crti.o' is incompatible with sparc:v9
output 
/usr/sparc-linux-gnu/bin/ld: sparc:v8plus architecture of input
file `/usr/sparc-linux-gnu/lib/crtn.o' is incompatible with sparc:v9
output 
collect2: ld returned 1 exit status 
make[6]: *** [libgcc_s.so]
Error 1

I found that you had similar problems in the past:
http://sourceware.org/ml/crossgcc/2008-06/msg00003.html

Have you managed to solve this in architectures other than sparc?

One more thing that is bothering me is the "sparc:v8plus" input and
sparc:v9 output. V9 is 64-bit and V8plus is a way of running 32bit
applications on V9 hardware.

What I would like to have is a V8 ABI for the LEON3 processor. I think
(not sure) that V8plus will not do. So, how do I get a V8 libc6, and
how do we set the output to V8 as well? I do recall Neil saying
something about a mechanism for machine-specific tweaks in emdebian at
FOSDEM, but I don't recall the details.

Best regards,
Dimitris