problem with bfin-linux-fdpic

[Waldemar Brodkorb]

Hi,

I have an Arcturus Blackfin board I am using for experimenting with
uClibc-ng. It is a bf548 CPU.
Binutils 2.26 with this patch¹ works fine.
Binutils 2.27 does not work anymore.

A simple hello world gives me an "Illegal Instruction".

I tried to git bisect the problem, but I only get some unrelated
gdb commit as the culprit of the problem.

You can find the working and broken binaries here:
https://debug.openadk.org/bfin-fdpic/

Does anybody remember any changes between 2.26 and 2.27 which could
be the reason for this problem. Or is it possible to see the problem
by analyzing the binaries I provided?

gcc 14.2.0 is used. The kernel is 2.6.28.10-ADI-2009R1-Arcturus.
I use NFSroot to bootup the userland.

I already tried binutils 2.44 without success.
The problem can be reproduced with gdb 16.2 bfin simulator.

Thanks in advance for any help.

best regards
 Waldemar

¹https://sourceware.org/bugzilla/show_bug.cgi?id=17334