parisc/unwind: fix unwinder when CONFIG_64BIT is enabled

Browse source

With 64 bit kernels unwind_special() is not working because
it compares the pc to the address of the function descriptor.
Add a helper function that compares pc with the dereferenced
address. This fixes all of the backtraces on my c8000. Without
this changes, a lot of backtraces are missing in kdb or the
show-all-tasks command from /proc/sysrq-trigger.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>

...

This commit is contained in:

Sven Schnelle 2021-10-09 23:15:17 +02:00 • committed by Helge Deller

parent 8779e05ba8

commit 8e0ba125c2

1 changed files with 14 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

arch/parisc/kernel/unwind.c

View file