RE: [microblaze-uclinux] ld segfault

["Rod Green" <rgreen@xxxxxxxxxxxxxxxx>]

John,

Thanks so much for the input.  I finally tracked down the culprit using
the verbose output from mb-strip.  3 of the object files going into the
library were x86 objects due to a problem with one of the Makefiles.
Now that that is fixed, everything looks great.


Rod

> -----Original Message-----
> From: owner-microblaze-uclinux@xxxxxxxxxxxxxx 
> [mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of 
> John Williams
> Sent: Sunday, August 19, 2007 5:13 PM
> To: microblaze-uclinux@xxxxxxxxxxxxxx
> Subject: Re: [microblaze-uclinux] ld segfault
> 
> Hi Rod,
> 
> Rod Green wrote:
> > All,
> > 
> > I am getting a segfault when I try to link an application.  
> 
> That's odd - someone else reported one of those recently as well.
> 
> Does anyone
> > have any pointers on how to pursue this?  I'm pretty much 
> out of ideas.
> > The program is c++ that was developed under Linux and Win32, and it
> > links against a few other libraries that were developed 
> similarly.  I
> > can link other code against those libs without any trouble, 
> but so far I
> > haven't been able to come up with a minimal test case that 
> triggers the
> > segfault.  Below is the specific error I'm getting:
> 
> Are all of the libs and object code you are linking, compiled on the 
> same (Linux) host platform?
> 
> > 
> /home/rgreen/petalinux-v0.20-rc3/tools/linux-i386/microblaze-u
> clinux-too
> > 
> ls/bin/../lib/gcc/microblaze-uclinux/3.4.1/../../../../microbl
> aze-uclinu
> > x/bin/ld.real: bfd assertion fail
> 
> This BDF message is curious - I've never seen it before.
> 
> 
> > 
> /home/jwilliams/PetaLogix/petalinux-test/toolchains/microblaze
> -uclinux/s
> > rcs/binutils/bfd/elflink.h:5205
> > 
> /home/rgreen/petalinux-v0.20-rc3/tools/linux-i386/microblaze-u
> clinux-too
> > 
> ls/bin/../lib/gcc/microblaze-uclinux/3.4.1/../../../../microbl
> aze-uclinu
> > x/bin/ld: line 168: 27073 Segmentation fault      $LINKER 
> $EMUL -r -d -o
> > "$OFILE.elf2flt" $ARG1
> > collect2: ld returned 139 exit statusthe -f parameter to 
> follow forks
> > 
> > I am using the tools from petalinux-v0.20-rc3.tar.gz.  Any 
> help would be
> > appreciated.
> 
> Can you cut and paste the complete command line that causes the 
> segfault?  If so, enter it on the commandline, make sure it 
> triggers the 
> error, then maybe try running strace on it:
> 
>   $ strace commandline
> 
> you might need the -f parameter to straec, to follow forked children.
> 
> Of course a test case would be helpful but I understand this might be 
> hard with proprietary code.  Even the process of trying to strip down 
> the offending app / library can be informative - if the error 
> suddenly 
> goes away, what changed?
> 
> Regards,
> 
> John
> ___________________________
> microblaze-uclinux mailing list
> microblaze-uclinux@xxxxxxxxxxxxxx
> Project Home Page : 
> http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
> Mailing List Archive : 
> http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
> 

___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/