Hello world, ;-)
when stepping through my own software, which is using floating point variables,
gdb showed weird results (mostly NAN´s) for these variables. Running the
software without gdb did not show any problems. The software is compiled with
floating point instructions and the results (without gdb) are OK.
My setup:
MPC8349 target, "home grown", much like the MPC8349EMDS, running 2.6.16 (ppc)
GDB, gdbserver 6.3 connected via ethernet with my Linux Host.
What I did to get rid of the described problem:
In module: arch/powerpc/kernel/process.c
In function: void flush_fp_to_thread(struct tast_struct *tsk)
I changed the line: giveup_fpu(current);
to: giveup_fpu(tsk);
Now my questions: Has anybody else had such problems?
Have I found a bug, or will I encounter any yet unknown
problems in the near future?
I would appreciate any comment on my changes, especially from the maintainers.
Thank you very much
Udo Visser
Heidelberger Druckmaschinen AG
RD IMAGING SYSTEMS RD-IS-E23
Confidentiality note:
The information in this email and any attachment may contain confidential and
proprietary information of Heidelberger Druckmaschinen AG and/or its affiliates
and may be privileged or otherwise protected from disclosure. If you are not
the intended recipient, you are hereby notified that any review, reliance or
distribution by others or forwarding without express permission is strictly
prohibited and may cause liability. In case you have received this message due
to an error in transmission, we kindly ask you to notify the sender immediately
and to delete this email and any attachment from your system.
_______________________________________________
Linuxppc-embedded mailing list
[email protected]
https://ozlabs.org/mailman/listinfo/linuxppc-embedded
