From: Chris Metcalf <cmetcalf@tilera.com>
Date: Thu, 29 Mar 2012 20:11:09 +0000 (-0400)
Subject: arch/tile: fix single-stepping over swint1 instructions on tilegx
X-Git-Tag: v3.4-rc2~7^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2858f856021340f3730fa8639dd520a2e4331f7f;p=pandora-kernel.git

arch/tile: fix single-stepping over swint1 instructions on tilegx

If we are single-stepping and make a syscall, we call ptrace_notify()
explicitly on the return path back to user space, since we are returning
to a pc value set artificially to the next instruction, and otherwise
we won't register that we stepped over the syscall instruction (swint1).

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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