From: David Engraf <david.engraf@sysgo.com>
Date: Wed, 23 Mar 2011 11:35:42 +0000 (+0000)
Subject: sh: Fix ptrace hw_breakpoint handling
X-Git-Tag: v2.6.37.6~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0030f64fbb5c6a6eb943a2ec1fdc43e17b0b124c;p=pandora-kernel.git

sh: Fix ptrace hw_breakpoint handling

commit fb7f045ace0624f1e59a7db8497e460bd54b1cbc upstream.

Since commit 34d0b5af50a063cded842716633501b38ff815fb it is no longer
possible to debug an application using singlestep. The old commit
converted singlestep handling via ptrace to hw_breakpoints. The
hw_breakpoint is disabled when an event is triggered and not re-enabled
again. This patch re-enables the existing hw_breakpoint before the
existing breakpoint is reused.

Signed-off-by: David Engraf <david.engraf@sysgo.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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