From patchwork Tue Jul 21 14:02:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 11675727 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CA18F138C for ; Tue, 21 Jul 2020 14:04:48 +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 A26FA2064B for ; Tue, 21 Jul 2020 14:04:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="h1WJ9MKu" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A26FA2064B 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:52994 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jxssx-0004q1-TR for patchwork-qemu-devel@patchwork.kernel.org; Tue, 21 Jul 2020 10:04:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58570) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jxsrF-0001xo-Vl for qemu-devel@nongnu.org; Tue, 21 Jul 2020 10:03:02 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:46195 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jxsr7-0008Ry-H1 for qemu-devel@nongnu.org; Tue, 21 Jul 2020 10:03:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595340172; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=dptqPmov5HgQE54qsZ8h1j2fyNagrwA/gqq92TDkDyY=; b=h1WJ9MKuVeHxTuXzg2z0krMooKCKf3awBS095RRXXXdZl1MIK6eeER0ePIlaNbhf65gsbz BV9Ab1ew6n4u0SAsCaes+FDLdyzwb0+WhnP8ghqbWSzkmaOs00QnkKyaCohJVPts6f9S7W 2qnUF0cySaO/0kY7iDk5L/NqahOl2LI= 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-231-0hjrS8bVMsyCNZzogDPGcw-1; Tue, 21 Jul 2020 10:02:50 -0400 X-MC-Unique: 0hjrS8bVMsyCNZzogDPGcw-1 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 mimecast-mx01.redhat.com (Postfix) with ESMTPS id CB305100CCC8 for ; Tue, 21 Jul 2020 14:02:49 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-115-89.ams2.redhat.com [10.36.115.89]) by smtp.corp.redhat.com (Postfix) with ESMTP id BE8ED7268E; Tue, 21 Jul 2020 14:02:46 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id EF45F9D57; Tue, 21 Jul 2020 16:02:45 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 2/3] qxl: fix modular builds with dtrace Date: Tue, 21 Jul 2020 16:02:44 +0200 Message-Id: <20200721140245.14634-3-kraxel@redhat.com> In-Reply-To: <20200721140245.14634-1-kraxel@redhat.com> References: <20200721140245.14634-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.81; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/21 03:39:19 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: Gerd Hoffmann Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Checking the enable/disable state of tracepoints via trace_event_get_state_backends() does not work for modules. qxl checks the state for a small optimization (avoid g_strndup call in case log_buf will not be used anyway), so we can just drop that check for modular builds. Signed-off-by: Gerd Hoffmann Message-Id: <20200720100352.2477-2-kraxel@redhat.com> --- hw/display/qxl.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/hw/display/qxl.c b/hw/display/qxl.c index d5627119ec62..11871340e75d 100644 --- a/hw/display/qxl.c +++ b/hw/display/qxl.c @@ -1762,7 +1762,16 @@ async_common: qxl_set_mode(d, val, 0); break; case QXL_IO_LOG: +#ifdef CONFIG_MODULES + /* + * FIXME + * trace_event_get_state_backends() does not work for modules, + * it leads to "undefined symbol: qemu_qxl_io_log_semaphore" + */ + if (true) { +#else if (trace_event_get_state_backends(TRACE_QXL_IO_LOG) || d->guestdebug) { +#endif /* We cannot trust the guest to NUL terminate d->ram->log_buf */ char *log_buf = g_strndup((const char *)d->ram->log_buf, sizeof(d->ram->log_buf));