From nobody Mon Feb 9 06:49:19 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1554712998691580.9700876784352; Mon, 8 Apr 2019 01:43:18 -0700 (PDT) Received: from localhost ([127.0.0.1]:49428 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hDPs3-00052D-I7 for importer@patchew.org; Mon, 08 Apr 2019 04:43:15 -0400 Received: from eggs.gnu.org ([209.51.188.92]:48951) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hDPlb-00089a-1Q for qemu-devel@nongnu.org; Mon, 08 Apr 2019 04:36:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hDPlZ-0003eY-La for qemu-devel@nongnu.org; Mon, 08 Apr 2019 04:36:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48970) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hDPlZ-0003dO-8O for qemu-devel@nongnu.org; Mon, 08 Apr 2019 04:36:33 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 90FD63086215 for ; Mon, 8 Apr 2019 08:36:32 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-116.ams2.redhat.com [10.36.116.116]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 36B5760471; Mon, 8 Apr 2019 08:36:32 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 0E80C113298A; Mon, 8 Apr 2019 10:36:28 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Date: Mon, 8 Apr 2019 10:36:24 +0200 Message-Id: <20190408083627.7479-13-armbru@redhat.com> In-Reply-To: <20190408083627.7479-1-armbru@redhat.com> References: <20190408083627.7479-1-armbru@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Mon, 08 Apr 2019 08:36:32 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 12/15] qemu-print: New qemu_printf(), qemu_vprintf() etc. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Dr . David Alan Gilbert" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" We commonly want to print to the current monitor if we have one, else to stdout/stderr. For stderr, have error_printf(). For stdout, all we have is monitor_vfprintf(), which is rather unwieldy. We often print to stderr just because error_printf() is easier. New qemu_printf() and qemu_vprintf() do exactly what's needed. The next commits will put them to use. Cc: Dr. David Alan Gilbert Signed-off-by: Markus Armbruster Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Philippe Mathieu-Daud=C3=A9 --- MAINTAINERS | 2 ++ include/qemu/qemu-print.h | 19 ++++++++++++++++++ stubs/monitor.c | 5 +++++ util/Makefile.objs | 1 + util/qemu-print.c | 42 +++++++++++++++++++++++++++++++++++++++ 5 files changed, 69 insertions(+) create mode 100644 include/qemu/qemu-print.h create mode 100644 util/qemu-print.c diff --git a/MAINTAINERS b/MAINTAINERS index 56139ac8ab..1aa19dc4ef 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1895,6 +1895,8 @@ F: hmp.[ch] F: hmp-commands*.hx F: include/monitor/hmp-target.h F: tests/test-hmp.c +F: include/qemu/qemu-print.h +F: util/qemu-print.c =20 Network device backends M: Jason Wang diff --git a/include/qemu/qemu-print.h b/include/qemu/qemu-print.h new file mode 100644 index 0000000000..8fed32bf42 --- /dev/null +++ b/include/qemu/qemu-print.h @@ -0,0 +1,19 @@ +/* + * Print to stream or current monitor + * + * Copyright (C) 2019 Red Hat Inc. + * + * Authors: + * Markus Armbruster , + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#ifndef QEMU_PRINT_H +#define QEMU_PRINT_H + +int qemu_vprintf(const char *fmt, va_list ap) GCC_FMT_ATTR(1, 0); +int qemu_printf(const char *fmt, ...) GCC_FMT_ATTR(1, 2); + +#endif diff --git a/stubs/monitor.c b/stubs/monitor.c index b57fe6c32f..b2ea975e40 100644 --- a/stubs/monitor.c +++ b/stubs/monitor.c @@ -6,6 +6,11 @@ =20 __thread Monitor *cur_mon; =20 +int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap) +{ + abort(); +} + int monitor_get_fd(Monitor *mon, const char *name, Error **errp) { error_setg(errp, "only QEMU supports file descriptor passing"); diff --git a/util/Makefile.objs b/util/Makefile.objs index 835fcd69e2..9206878dec 100644 --- a/util/Makefile.objs +++ b/util/Makefile.objs @@ -23,6 +23,7 @@ util-obj-y +=3D bitmap.o bitops.o hbitmap.o util-obj-y +=3D fifo8.o util-obj-y +=3D cacheinfo.o util-obj-y +=3D error.o qemu-error.o +util-obj-y +=3D qemu-print.o util-obj-y +=3D id.o util-obj-y +=3D iov.o qemu-config.o qemu-sockets.o uri.o notify.o util-obj-y +=3D qemu-option.o qemu-progress.o diff --git a/util/qemu-print.c b/util/qemu-print.c new file mode 100644 index 0000000000..86f9417af8 --- /dev/null +++ b/util/qemu-print.c @@ -0,0 +1,42 @@ +/* + * Print to stream or current monitor + * + * Copyright (C) 2019 Red Hat Inc. + * + * Authors: + * Markus Armbruster , + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "monitor/monitor.h" +#include "qemu/qemu-print.h" + +/* + * Print like vprintf(). + * Print to current monitor if we have one, else to stdout. + */ +int qemu_vprintf(const char *fmt, va_list ap) +{ + if (cur_mon) { + return monitor_vprintf(cur_mon, fmt, ap); + } + return vprintf(fmt, ap); +} + +/* + * Print like printf(). + * Print to current monitor if we have one, else to stdout. + */ +int qemu_printf(const char *fmt, ...) +{ + va_list ap; + int ret; + + va_start(ap, fmt); + ret =3D qemu_vprintf(fmt, ap); + va_end(ap); + return ret; +} --=20 2.17.2