From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 680B5C433E0 for ; Mon, 18 Jan 2021 16:51:41 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 02000222BB for ; Mon, 18 Jan 2021 16:51:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 02000222BB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42802 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l1Xkh-0001Yl-Or for qemu-devel@archiver.kernel.org; Mon, 18 Jan 2021 11:51:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:35072) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l1XRT-0002R3-Gb for qemu-devel@nongnu.org; Mon, 18 Jan 2021 11:31:47 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:40850) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l1XRI-0001VD-Te for qemu-devel@nongnu.org; Mon, 18 Jan 2021 11:31:47 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1610987495; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lW0TiJdadx8IwKGZP+oSId/5ie9shy1Wn9Gkycwb1GA=; b=UFsvmOhtuUioy2Gv6bzex+zwErLQaate9LI/alOz8Sad6Y7knw9gAFmj7OBj/QvInnQbFK SyaQSz81tuMwTLcmyebH548qAchg3P00PiBEnxMlrvmfu27p9IvpuGCjmD5K0iz8LbUwSj hV0J/YWVSdhMywg0K6G6Zd2qs3OTpFE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-258-vWNQ1-RhO06WUs7rKrUzhw-1; Mon, 18 Jan 2021 11:31:33 -0500 X-MC-Unique: vWNQ1-RhO06WUs7rKrUzhw-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 91116190B2A0 for ; Mon, 18 Jan 2021 16:31:32 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1A8C110013C0; Mon, 18 Jan 2021 16:31:32 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH 12/25] qemu-config: add error propagation to qemu_config_parse Date: Mon, 18 Jan 2021 11:31:00 -0500 Message-Id: <20210118163113.780171-13-pbonzini@redhat.com> In-Reply-To: <20210118163113.780171-1-pbonzini@redhat.com> References: <20210118163113.780171-1-pbonzini@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=63.128.21.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.175, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, imammedo@redhat.com, armbru@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This enables some simplification of vl.c via error_fatal. Signed-off-by: Paolo Bonzini --- block/blkdebug.c | 3 +-- include/qemu/config-file.h | 4 ++-- softmmu/vl.c | 30 ++++++++++++------------------ util/qemu-config.c | 20 ++++++++++---------- 4 files changed, 25 insertions(+), 32 deletions(-) diff --git a/block/blkdebug.c b/block/blkdebug.c index 5fe6172da9..7eaa8a28bf 100644 --- a/block/blkdebug.c +++ b/block/blkdebug.c @@ -279,9 +279,8 @@ static int read_config(BDRVBlkdebugState *s, const char *filename, return -errno; } - ret = qemu_config_parse(f, config_groups, filename); + ret = qemu_config_parse(f, config_groups, filename, errp); if (ret < 0) { - error_setg(errp, "Could not parse blkdebug config file"); goto fail; } } diff --git a/include/qemu/config-file.h b/include/qemu/config-file.h index 7d26fe3816..da6f4690b7 100644 --- a/include/qemu/config-file.h +++ b/include/qemu/config-file.h @@ -10,9 +10,9 @@ void qemu_add_opts(QemuOptsList *list); void qemu_add_drive_opts(QemuOptsList *list); int qemu_global_option(const char *str); -int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname); +int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname, Error **errp); -int qemu_read_config_file(const char *filename); +int qemu_read_config_file(const char *filename, Error **errp); /* Parse QDict options as a replacement for a config file (allowing multiple enumerated (0..(n-1)) configuration "sections") */ diff --git a/softmmu/vl.c b/softmmu/vl.c index d34307bf11..d991919155 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -2056,17 +2056,20 @@ static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) return 0; } -static int qemu_read_default_config_file(void) +static void qemu_read_default_config_file(Error **errp) { int ret; + Error *local_err = NULL; g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); - ret = qemu_read_config_file(file); - if (ret < 0 && ret != -ENOENT) { - return ret; + ret = qemu_read_config_file(file, &local_err); + if (ret < 0) { + if (ret == -ENOENT) { + error_free(local_err); + } else { + error_propagate(errp, local_err); + } } - - return 0; } static int qemu_set_option(const char *str) @@ -2622,9 +2625,7 @@ void qemu_init(int argc, char **argv, char **envp) } if (userconfig) { - if (qemu_read_default_config_file() < 0) { - exit(1); - } + qemu_read_default_config_file(&error_fatal); } /* second pass of option parsing */ @@ -3312,15 +3313,8 @@ void qemu_init(int argc, char **argv, char **envp) qemu_plugin_opt_parse(optarg, &plugin_list); break; case QEMU_OPTION_readconfig: - { - int ret = qemu_read_config_file(optarg); - if (ret < 0) { - error_report("read config %s: %s", optarg, - strerror(-ret)); - exit(1); - } - break; - } + qemu_read_config_file(optarg, &error_fatal); + break; case QEMU_OPTION_spice: olist = qemu_find_opts_err("spice", NULL); if (!olist) { diff --git a/util/qemu-config.c b/util/qemu-config.c index a4a1324c68..d0629f4960 100644 --- a/util/qemu-config.c +++ b/util/qemu-config.c @@ -308,7 +308,7 @@ void qemu_add_opts(QemuOptsList *list) } /* Returns number of config groups on success, -errno on error */ -int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) +int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname, Error **errp) { char line[1024], group[64], id[64], arg[64], value[1024]; Location loc; @@ -333,7 +333,7 @@ int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) /* group with id */ list = find_list(lists, group, &local_err); if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); goto out; } opts = qemu_opts_create(list, id, 1, NULL); @@ -344,7 +344,7 @@ int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) /* group without id */ list = find_list(lists, group, &local_err); if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); goto out; } opts = qemu_opts_create(list, NULL, 0, &error_abort); @@ -356,20 +356,19 @@ int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) sscanf(line, " %63s = \"\"", arg) == 1) { /* arg = value */ if (opts == NULL) { - error_report("no group defined"); + error_setg(errp, "no group defined"); goto out; } - if (!qemu_opt_set(opts, arg, value, &local_err)) { - error_report_err(local_err); + if (!qemu_opt_set(opts, arg, value, errp)) { goto out; } continue; } - error_report("parse error"); + error_setg(errp, "parse error"); goto out; } if (ferror(fp)) { - error_report("error reading file"); + error_setg(errp, "error reading file"); goto out; } res = count; @@ -378,16 +377,17 @@ out: return res; } -int qemu_read_config_file(const char *filename) +int qemu_read_config_file(const char *filename, Error **errp) { FILE *f = fopen(filename, "r"); int ret; if (f == NULL) { + error_setg_errno(errp, errno, "Cannot read config file %s", filename); return -errno; } - ret = qemu_config_parse(f, vm_config_groups, filename); + ret = qemu_config_parse(f, vm_config_groups, filename, errp); fclose(f); return ret; } -- 2.26.2