From owner-svn-src-all@FreeBSD.ORG  Thu Mar 22 17:36:53 2012
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id DC0C210656ED;
	Thu, 22 Mar 2012 17:36:53 +0000 (UTC)
	(envelope-from gonzo@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id C73CF8FC1A;
	Thu, 22 Mar 2012 17:36:53 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q2MHarRe034365;
	Thu, 22 Mar 2012 17:36:53 GMT (envelope-from gonzo@svn.freebsd.org)
Received: (from gonzo@localhost)
	by svn.freebsd.org (8.14.4/8.14.4/Submit) id q2MHart2034363;
	Thu, 22 Mar 2012 17:36:53 GMT (envelope-from gonzo@svn.freebsd.org)
Message-Id: <201203221736.q2MHart2034363@svn.freebsd.org>
From: Oleksandr Tymoshenko <gonzo@FreeBSD.org>
Date: Thu, 22 Mar 2012 17:36:53 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r233316 - head/sys/sys
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
	user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 22 Mar 2012 17:36:54 -0000

Author: gonzo
Date: Thu Mar 22 17:36:53 2012
New Revision: 233316
URL: http://svn.freebsd.org/changeset/base/233316

Log:
  Fix PMC syscall on 64-bit big endian systems.
  
  Sycall argument is pointer to array of register_t values. Casting it to
  pointer to structure with fields of size smaller then register_t we rely
  on compiler-dependent memory layout of structure.
  
  Tested on: mips64 and amd64 systems

Modified:
  head/sys/sys/pmc.h

Modified: head/sys/sys/pmc.h
==============================================================================
--- head/sys/sys/pmc.h	Thu Mar 22 17:04:49 2012	(r233315)
+++ head/sys/sys/pmc.h	Thu Mar 22 17:36:53 2012	(r233316)
@@ -589,7 +589,7 @@ struct pmc_op_getmsr {
  */
 
 struct pmc_syscall_args {
-	uint32_t	pmop_code;	/* one of PMC_OP_* */
+	register_t	pmop_code;	/* one of PMC_OP_* */
 	void		*pmop_data;	/* syscall parameter */
 };