From patchwork Fri Dec 14 10:56:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Christophe Fergeau X-Patchwork-Id: 10730859 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BF3B46C5 for ; Fri, 14 Dec 2018 10:57:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AB6EA2C0DE for ; Fri, 14 Dec 2018 10:57:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9F7D02D377; Fri, 14 Dec 2018 10:57:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 09CF32C0DE for ; Fri, 14 Dec 2018 10:57:53 +0000 (UTC) Received: from localhost ([::1]:60909 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gXlAG-0004lk-T8 for patchwork-qemu-devel@patchwork.kernel.org; Fri, 14 Dec 2018 05:57:52 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40236) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gXl9K-00045H-QA for qemu-devel@nongnu.org; Fri, 14 Dec 2018 05:56:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gXl9E-0006B8-EX for qemu-devel@nongnu.org; Fri, 14 Dec 2018 05:56:54 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59796) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gXl9E-0006A7-2x for qemu-devel@nongnu.org; Fri, 14 Dec 2018 05:56:48 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1B5EF2D7F2 for ; Fri, 14 Dec 2018 10:56:47 +0000 (UTC) Received: from natto.ory.fergeau.eu (unknown [10.48.0.207]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C462B5D6B3 for ; Fri, 14 Dec 2018 10:56:46 +0000 (UTC) Received: by natto.ory.fergeau.eu (Postfix, from userid 1000) id AB98D61F906; Fri, 14 Dec 2018 11:56:45 +0100 (CET) From: Christophe Fergeau To: qemu-devel@nongnu.org Date: Fri, 14 Dec 2018 11:56:42 +0100 Message-Id: <20181214105642.673-1-cfergeau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 14 Dec 2018 10:56:47 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4] log: Make glib logging go through QEMU 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: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This commit adds a qemu_init_logging() helper which calls g_log_set_default_handler() so that glib logs (g_log, g_warning, ...) are handled similarly to other QEMU logs. This means they will get a timestamp if timestamps are enabled, and they will go through the monitor if one is configured. This commit also adds a call to qemu_init_logging() to the binaries installed by QEMU. glib debug messages are enabled through G_MESSAGES_DEBUG similarly to glib default log handler. At the moment, this change will mostly impact SPICE logging if your spice version is >= 0.14.1. With older spice versions, this is not going to work as expected, but will not have any ill effect, so this call is not conditional on the SPICE version. Signed-off-by: Christophe Fergeau Reviewed-by: Daniel P. Berrangé Reviewed-by: Stefan Hajnoczi --- Changes since v3: - Fixed style issue: removed 2 extra spaces before parens (reported by checkpatch) bsd-user/main.c | 1 + include/qemu/error-report.h | 2 ++ linux-user/main.c | 1 + qemu-img.c | 1 + qemu-io.c | 1 + qemu-nbd.c | 1 + scsi/qemu-pr-helper.c | 1 + util/qemu-error.c | 47 +++++++++++++++++++++++++++++++++++++ vl.c | 1 + 9 files changed, 56 insertions(+) diff --git a/bsd-user/main.c b/bsd-user/main.c index 0d3156974c..96787b27ef 100644 --- a/bsd-user/main.c +++ b/bsd-user/main.c @@ -743,6 +743,7 @@ int main(int argc, char **argv) if (argc <= 1) usage(); + qemu_init_logging(); module_call_init(MODULE_INIT_TRACE); qemu_init_cpu_list(); module_call_init(MODULE_INIT_QOM); diff --git a/include/qemu/error-report.h b/include/qemu/error-report.h index 0a8d9cc9ea..2852e9df2a 100644 --- a/include/qemu/error-report.h +++ b/include/qemu/error-report.h @@ -49,6 +49,8 @@ bool error_report_once_cond(bool *printed, const char *fmt, ...) bool warn_report_once_cond(bool *printed, const char *fmt, ...) GCC_FMT_ATTR(2, 3); +void qemu_init_logging(void); + /* * Similar to error_report(), except it prints the message just once. * Return true when it prints, false otherwise. diff --git a/linux-user/main.c b/linux-user/main.c index 923cbb753a..de9ff462e9 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -600,6 +600,7 @@ int main(int argc, char **argv, char **envp) int ret; int execfd; + qemu_init_logging(); module_call_init(MODULE_INIT_TRACE); qemu_init_cpu_list(); module_call_init(MODULE_INIT_QOM); diff --git a/qemu-img.c b/qemu-img.c index ad04f59565..9214392565 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -4912,6 +4912,7 @@ int main(int argc, char **argv) signal(SIGPIPE, SIG_IGN); #endif + qemu_init_logging(); module_call_init(MODULE_INIT_TRACE); error_set_progname(argv[0]); qemu_init_exec_dir(argv[0]); diff --git a/qemu-io.c b/qemu-io.c index 6df7731af4..ad38d12e68 100644 --- a/qemu-io.c +++ b/qemu-io.c @@ -524,6 +524,7 @@ int main(int argc, char **argv) signal(SIGPIPE, SIG_IGN); #endif + qemu_init_logging(); module_call_init(MODULE_INIT_TRACE); progname = g_path_get_basename(argv[0]); qemu_init_exec_dir(argv[0]); diff --git a/qemu-nbd.c b/qemu-nbd.c index ca7109652e..2cac038230 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -570,6 +570,7 @@ int main(int argc, char **argv) signal(SIGPIPE, SIG_IGN); #endif + qemu_init_logging(); module_call_init(MODULE_INIT_TRACE); qcrypto_init(&error_fatal); diff --git a/scsi/qemu-pr-helper.c b/scsi/qemu-pr-helper.c index e7af637232..523f8b237c 100644 --- a/scsi/qemu-pr-helper.c +++ b/scsi/qemu-pr-helper.c @@ -895,6 +895,7 @@ int main(int argc, char **argv) signal(SIGPIPE, SIG_IGN); + qemu_init_logging(); module_call_init(MODULE_INIT_TRACE); module_call_init(MODULE_INIT_QOM); qemu_add_opts(&qemu_trace_opts); diff --git a/util/qemu-error.c b/util/qemu-error.c index fcbe8a1f74..1118ed4695 100644 --- a/util/qemu-error.c +++ b/util/qemu-error.c @@ -345,3 +345,50 @@ bool warn_report_once_cond(bool *printed, const char *fmt, ...) va_end(ap); return true; } + +static char *qemu_glog_domains; + +static void qemu_log_func(const gchar *log_domain, + GLogLevelFlags log_level, + const gchar *message, + gpointer user_data) +{ + switch (log_level & G_LOG_LEVEL_MASK) { + case G_LOG_LEVEL_DEBUG: + /* Use same G_MESSAGES_DEBUG logic as glib to enable/disable debug + * messages + */ + if (qemu_glog_domains == NULL) { + break; + } + if (strcmp(qemu_glog_domains, "all") != 0 && + (log_domain == NULL || !strstr(qemu_glog_domains, log_domain))) { + break; + } + /* Fall through */ + case G_LOG_LEVEL_INFO: + /* Fall through */ + case G_LOG_LEVEL_MESSAGE: + info_report("%s: %s", log_domain, message); + break; + case G_LOG_LEVEL_WARNING: + warn_report("%s: %s", log_domain, message); + break; + case G_LOG_LEVEL_CRITICAL: + /* Fall through */ + case G_LOG_LEVEL_ERROR: + error_report("%s: %s", log_domain, message); + break; + } +} + +/* + * Init QEMU logging subsystem. This sets up glib logging so libraries using it + * also print their logs through {info,warn,error}_report. + */ +void qemu_init_logging(void) +{ + g_log_set_default_handler(qemu_log_func, NULL); + g_warn_if_fail(qemu_glog_domains == NULL); + qemu_glog_domains = g_strdup(g_getenv("G_MESSAGES_DEBUG")); +} diff --git a/vl.c b/vl.c index a5ae5f23d2..d986fd93ab 100644 --- a/vl.c +++ b/vl.c @@ -3015,6 +3015,7 @@ int main(int argc, char **argv, char **envp) QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); + qemu_init_logging(); module_call_init(MODULE_INIT_TRACE); qemu_init_cpu_list();