From patchwork Tue Nov 18 15:04:15 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 412062 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 98ED7140187 for ; Wed, 19 Nov 2014 02:05:12 +1100 (AEDT) Received: from localhost ([::1]:53692 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XqkL8-0002kd-NE for incoming@patchwork.ozlabs.org; Tue, 18 Nov 2014 10:05:10 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49000) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XqkKW-0001g8-JD for qemu-devel@nongnu.org; Tue, 18 Nov 2014 10:04:38 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XqkKQ-00050v-G1 for qemu-devel@nongnu.org; Tue, 18 Nov 2014 10:04:32 -0500 Received: from mx1.redhat.com ([209.132.183.28]:58170) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XqkKQ-00050i-8W for qemu-devel@nongnu.org; Tue, 18 Nov 2014 10:04:26 -0500 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id sAIF4Ojn015506 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 18 Nov 2014 10:04:24 -0500 Received: from localhost (ovpn-112-58.ams2.redhat.com [10.36.112.58]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id sAIF4Mth011139; Tue, 18 Nov 2014 10:04:23 -0500 From: Stefan Hajnoczi To: Date: Tue, 18 Nov 2014 15:04:15 +0000 Message-Id: <1416323056-18861-2-git-send-email-stefanha@redhat.com> In-Reply-To: <1416323056-18861-1-git-send-email-stefanha@redhat.com> References: <1416323056-18861-1-git-send-email-stefanha@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: Peter Maydell , "Dr. David Alan Gilbert" , Stefan Hajnoczi Subject: [Qemu-devel] [PULL 1/2] Tracing docs fix configure option and description X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: "Dr. David Alan Gilbert" Fix the example trace configure option. Update the text to say that multiple backends are allowed and what happens when multiple backends are enabled. Signed-off-by: Dr. David Alan Gilbert Message-id: 1412691161-31785-1-git-send-email-dgilbert@redhat.com Signed-off-by: Stefan Hajnoczi --- docs/tracing.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/tracing.txt b/docs/tracing.txt index 7d38926..7117c5e 100644 --- a/docs/tracing.txt +++ b/docs/tracing.txt @@ -139,12 +139,12 @@ events are not tightly coupled to a specific trace backend, such as LTTng or SystemTap. Support for trace backends can be added by extending the "tracetool" script. -The trace backend is chosen at configure time and only one trace backend can -be built into the binary: +The trace backends are chosen at configure time: - ./configure --trace-backends=simple + ./configure --enable-trace-backends=simple For a list of supported trace backends, try ./configure --help or see below. +If multiple backends are enabled, the trace is sent to them all. The following subsections describe the supported trace backends.