From owner-svn-src-head@FreeBSD.ORG  Mon Apr 14 00:23:18 2014
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id CF9BE532;
 Mon, 14 Apr 2014 00:23:18 +0000 (UTC)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id BB8FC176F;
 Mon, 14 Apr 2014 00:23:18 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.8/8.14.8) with ESMTP id s3E0NIWZ024047;
 Mon, 14 Apr 2014 00:23:18 GMT (envelope-from markj@svn.freebsd.org)
Received: (from markj@localhost)
 by svn.freebsd.org (8.14.8/8.14.8/Submit) id s3E0NIG6024045;
 Mon, 14 Apr 2014 00:23:18 GMT (envelope-from markj@svn.freebsd.org)
Message-Id: <201404140023.s3E0NIG6024045@svn.freebsd.org>
From: Mark Johnston <markj@FreeBSD.org>
Date: Mon, 14 Apr 2014 00:23:18 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r264435 - head/sys/cddl/dev/systrace
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 14 Apr 2014 00:23:18 -0000

Author: markj
Date: Mon Apr 14 00:23:18 2014
New Revision: 264435
URL: http://svnweb.freebsd.org/changeset/base/264435

Log:
  Ensure that all eight syscall arguments are available to dtrace_probe(),
  rather than just the first five. This is done by calling dtrace_probe()
  through a function pointer, as in illumos.
  
  MFC after:	3 weeks

Modified:
  head/sys/cddl/dev/systrace/systrace.c

Modified: head/sys/cddl/dev/systrace/systrace.c
==============================================================================
--- head/sys/cddl/dev/systrace/systrace.c	Mon Apr 14 00:22:42 2014	(r264434)
+++ head/sys/cddl/dev/systrace/systrace.c	Mon Apr 14 00:23:18 2014	(r264435)
@@ -168,6 +168,9 @@ static dtrace_pops_t systrace_pops = {
 static struct cdev		*systrace_cdev;
 static dtrace_provider_id_t	systrace_id;
 
+typedef void (*systrace_dtrace_probe_t)(dtrace_id_t, uintptr_t, uintptr_t,
+    uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t);
+
 #if !defined(LINUX_SYSTRACE)
 /*
  * Probe callback function.
@@ -180,6 +183,7 @@ static void
 systrace_probe(u_int32_t id, int sysnum, struct sysent *sysent, void *params,
     int ret)
 {
+	systrace_dtrace_probe_t probe;
 	int		n_args	= 0;
 	u_int64_t	uargs[8];
 
@@ -211,7 +215,9 @@ systrace_probe(u_int32_t id, int sysnum,
 	}
 
 	/* Process the probe using the converted argments. */
-	dtrace_probe(id, uargs[0], uargs[1], uargs[2], uargs[3], uargs[4]);
+	probe = (systrace_dtrace_probe_t)dtrace_probe;
+	probe(id, uargs[0], uargs[1], uargs[2], uargs[3], uargs[4], uargs[5],
+	    uargs[6], uargs[7]);
 }
 
 #endif