From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike Frysinger <vapier@gentoo.org>
Subject: Re: [PATCH] parisc: fix tracing of signals
Date: Fri, 12 Feb 2010 18:58:54 -0500
Message-ID: <201002121859.00083.vapier@gentoo.org>
References: <20100212155306.GI24051@bombadil.infradead.org> <alpine.LFD.2.00.1002120816100.7792@localhost.localdomain>
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Cc: Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org,
	roland@redhat.com, "David S. Miller" <davem@davemloft.net>,
	Paul Mundt <lethal@linux-sh.org>, linux-arch@vger.kernel.org
To: Linus Torvalds <torvalds@linux-foundation.org>
Return-path: <linux-arch-owner@vger.kernel.org>
In-Reply-To: <alpine.LFD.2.00.1002120816100.7792@localhost.localdomain>
List-ID: <linux-arch.vger.kernel.org>
List-Id: linux-parisc.vger.kernel.org

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On Friday 12 February 2010 11:21:33 Linus Torvalds wrote:
> On Fri, 12 Feb 2010, Kyle McMartin wrote:
> > Mike Frysinger pointed out that calling tracehook_signal_handler with
> > stepping=3D0 missed testing the thread flags, resulting in not calling
> > ptrace_notify. Fix this by testing if we're single stepping or branch
> > stepping and setting the flag accordingly.
> >
> > Tested, seems to work.
>=20
> Hmm. All other architectures either pass in zero, or test TIF_SINGLESTEP.
>=20
> I guess TIF_BLOCKSTEP is a parisc addition, so now parisc matches x86 and
> power etc, but it still makes me wonder about all those other
> architectures that pass in zero.
>=20
> For the curious, that seems to be at least sparc and 64-bit (but not
> 32-bit) sh.
>=20
> David? Paul?

David said that the sparc code is currently correct as hardware single=20
stepping is not supported:
http://lkml.org/lkml/2010/2/11/385
=2Dmike

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