From owner-svn-src-stable@FreeBSD.ORG  Mon Dec 30 00:43:24 2013
Return-Path: <owner-svn-src-stable@FreeBSD.ORG>
Delivered-To: svn-src-stable@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 C33779CB;
 Mon, 30 Dec 2013 00:43:24 +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))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id AE03D15E5;
 Mon, 30 Dec 2013 00:43:24 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id rBU0hOpT050006;
 Mon, 30 Dec 2013 00:43:24 GMT (envelope-from marius@svn.freebsd.org)
Received: (from marius@localhost)
 by svn.freebsd.org (8.14.7/8.14.7/Submit) id rBU0hOr4050005;
 Mon, 30 Dec 2013 00:43:24 GMT (envelope-from marius@svn.freebsd.org)
Message-Id: <201312300043.rBU0hOr4050005@svn.freebsd.org>
From: Marius Strobl <marius@FreeBSD.org>
Date: Mon, 30 Dec 2013 00:43:24 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org
Subject: svn commit: r260065 - stable/9/sys/sparc64/include
X-SVN-Group: stable-9
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-stable@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: SVN commit messages for all the -stable branches of the src tree
 <svn-src-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-stable>,
 <mailto:svn-src-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable/>
List-Post: <mailto:svn-src-stable@freebsd.org>
List-Help: <mailto:svn-src-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>,
 <mailto:svn-src-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 30 Dec 2013 00:43:24 -0000

Author: marius
Date: Mon Dec 30 00:43:24 2013
New Revision: 260065
URL: http://svnweb.freebsd.org/changeset/base/260065

Log:
  MFC: r255937
  
  Implement GET_STACK_USAGE.
  Discussed with:	mav

Modified:
  stable/9/sys/sparc64/include/proc.h
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/sparc64/include/proc.h
==============================================================================
--- stable/9/sys/sparc64/include/proc.h	Sun Dec 29 23:46:59 2013	(r260064)
+++ stable/9/sys/sparc64/include/proc.h	Mon Dec 30 00:43:24 2013	(r260065)
@@ -55,6 +55,17 @@ struct mdproc {
 
 #ifdef _KERNEL
 
+#include <machine/pcb.h>
+
+/* Get the current kernel thread stack usage. */
+#define	GET_STACK_USAGE(total, used) do {				\
+	struct thread *td = curthread;					\
+	(total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb);	\
+	(used) = (char *)td->td_kstack +				\
+	    td->td_kstack_pages * PAGE_SIZE -				\
+	    (char *)&td;						\
+} while (0)
+
 struct syscall_args {
 	u_int code;
 	struct sysent *callp;