From owner-freebsd-current@FreeBSD.ORG  Mon Sep 19 15:24:46 2011
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 39D03106564A
	for <freebsd-current@freebsd.org>; Mon, 19 Sep 2011 15:24:46 +0000 (UTC)
	(envelope-from freebsd-current@m.gmane.org)
Received: from lo.gmane.org (lo.gmane.org [80.91.229.12])
	by mx1.freebsd.org (Postfix) with ESMTP id ECBED8FC0C
	for <freebsd-current@freebsd.org>; Mon, 19 Sep 2011 15:24:45 +0000 (UTC)
Received: from list by lo.gmane.org with local (Exim 4.69)
	(envelope-from <freebsd-current@m.gmane.org>) id 1R5fi8-000323-Q2
	for freebsd-current@freebsd.org; Mon, 19 Sep 2011 17:24:44 +0200
Received: from 178.214.36.169 ([178.214.36.169])
	by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <freebsd-current@freebsd.org>; Mon, 19 Sep 2011 17:24:44 +0200
Received: from citrin by 178.214.36.169 with local (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <freebsd-current@freebsd.org>; Mon, 19 Sep 2011 17:24:44 +0200
X-Injected-Via-Gmane: http://gmane.org/
To: freebsd-current@freebsd.org
From: Anton Yuzhaninov <citrin@citrin.ru>
Date: Mon, 19 Sep 2011 15:24:32 +0000 (UTC)
Organization: Vega
Lines: 21
Sender: Anton Yuzhaninov <citrin@citrin.office.vega.ru>
Message-ID: <j57mrg$nfn$1@dough.gmane.org>
X-Complaints-To: usenet@dough.gmane.org
X-Gmane-NNTP-Posting-Host: 178.214.36.169
User-Agent: tin/1.8.3-20070201 ("Scotasay") (UNIX) (FreeBSD/9.0-BETA2 (i386))
Subject: Dtrace: type mismatch in sys/kern/kern_sig.c
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 19 Sep 2011 15:24:46 -0000

In the file sys/kern/kern_sig.c defined DTrace probe proc:::signal-discard

SDT_PROBE_DEFINE(proc, kernel, , signal_discard, signal-discard);
SDT_PROBE_ARGTYPE(proc, kernel, , signal_discard, 0, "struct thread *");
SDT_PROBE_ARGTYPE(proc, kernel, , signal_discard, 1, "struct proc *");
SDT_PROBE_ARGTYPE(proc, kernel, , signal_discard, 2, "int");

Then latter this proble called as:

SDT_PROBE(proc, kernel, , signal_discard, ps, td, sig, 0, 0 );

type for var ps is struct sigacts* =! struct thread * (bug?)
type for var td is struct thread * =! struct proc * (bug?)
type for var sig is int == int (ok)

To match solaris DTrace probe shuild called as:

SDT_PROBE(proc, kernel, , signal_discard, td, p, sig, 0, 0 );

-- 
 Anton Yuzhaninov