tree 5e1313a104ae877a174a88a2c93eb010f1bd5861
parent 7118e7e648e0a902bf4f38c55a25fcff730f33d7
author Ananth N Mavinakayanahalli <ananth@in.ibm.com> 1345757229 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1346822376 +1000

powerpc: Add trap_nr to thread_struct

Add thread_struct.trap_nr and use it to store the last exception
the thread experienced. In this patch, we populate the field at
various places where we force_sig_info() to the process.

This is also used in uprobes to determine if the probed instruction
caused an exception.

Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>