From nobody Thu Nov 6 08:19:38 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; 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 208.118.235.17 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 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1539771999235197.2160658061548; Wed, 17 Oct 2018 03:26:39 -0700 (PDT) Received: from localhost ([::1]:35211 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCj29-0005BP-QV for importer@patchew.org; Wed, 17 Oct 2018 06:26:33 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53458) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCiiA-0005yR-Ds for qemu-devel@nongnu.org; Wed, 17 Oct 2018 06:05:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gCii7-0002H3-JV for qemu-devel@nongnu.org; Wed, 17 Oct 2018 06:05:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59978) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gCii7-0001FN-9J for qemu-devel@nongnu.org; Wed, 17 Oct 2018 06:05:51 -0400 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 9249C3084044; Wed, 17 Oct 2018 10:05:25 +0000 (UTC) Received: from thuth.com (ovpn-116-148.ams2.redhat.com [10.36.116.148]) by smtp.corp.redhat.com (Postfix) with ESMTP id DB9782C7A6; Wed, 17 Oct 2018 10:05:24 +0000 (UTC) From: Thomas Huth To: Peter Maydell Date: Wed, 17 Oct 2018 12:05:05 +0200 Message-Id: <1539770707-7289-14-git-send-email-thuth@redhat.com> In-Reply-To: <1539770707-7289-1-git-send-email-thuth@redhat.com> References: <1539770707-7289-1-git-send-email-thuth@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 [10.5.110.40]); Wed, 17 Oct 2018 10:05:25 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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] [PULL 13/15] cpu: Provide a proper prototype for target_words_bigendian() in a header 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: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" We've got three places already that provide a prototype for this function in a .c file - that's ugly. Let's provide a proper prototype in a header instead, with a proper description why this function should not be used in most cases. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Laszlo Ersek Signed-off-by: Thomas Huth --- exec.c | 5 ----- hw/virtio/virtio.c | 1 - include/qom/cpu.h | 11 +++++++++++ qom/cpu.c | 1 - 4 files changed, 11 insertions(+), 7 deletions(-) diff --git a/exec.c b/exec.c index d0821e6..5d99ef5 100644 --- a/exec.c +++ b/exec.c @@ -3906,11 +3906,6 @@ int qemu_target_page_bits_min(void) } #endif =20 -/* - * A helper function for the _utterly broken_ virtio device model to find = out if - * it's running on a big endian machine. Don't do this at home kids! - */ -bool target_words_bigendian(void); bool target_words_bigendian(void) { #if defined(TARGET_WORDS_BIGENDIAN) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 94f5c8e..4e61944 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -1169,7 +1169,6 @@ int virtio_set_status(VirtIODevice *vdev, uint8_t val) return 0; } =20 -bool target_words_bigendian(void); static enum virtio_device_endian virtio_default_endian(void) { if (target_words_bigendian()) { diff --git a/include/qom/cpu.h b/include/qom/cpu.h index dc130cd..4e238b0 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -1085,6 +1085,17 @@ void cpu_exec_initfn(CPUState *cpu); void cpu_exec_realizefn(CPUState *cpu, Error **errp); void cpu_exec_unrealizefn(CPUState *cpu); =20 +/** + * target_words_bigendian: + * Returns true if the (default) endianness of the target is big endian, + * false otherwise. Note that in target-specific code, you can use + * TARGET_WORDS_BIGENDIAN directly instead. On the other hand, common + * code should normally never need to know about the endianness of the + * target, so please do *not* use this function unless you know very well + * what you are doing! + */ +bool target_words_bigendian(void); + #ifdef NEED_CPU_H =20 #ifdef CONFIG_SOFTMMU diff --git a/qom/cpu.c b/qom/cpu.c index 92599f3..f774654 100644 --- a/qom/cpu.c +++ b/qom/cpu.c @@ -194,7 +194,6 @@ static bool cpu_common_debug_check_watchpoint(CPUState = *cpu, CPUWatchpoint *wp) return true; } =20 -bool target_words_bigendian(void); static bool cpu_common_virtio_is_big_endian(CPUState *cpu) { return target_words_bigendian(); --=20 1.8.3.1