From patchwork Wed Sep 14 20:19:58 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandar Markovic X-Patchwork-Id: 9332457 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A75066077F for ; Wed, 14 Sep 2016 20:25:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9684A29FF1 for ; Wed, 14 Sep 2016 20:25:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 86B0229FF6; Wed, 14 Sep 2016 20:25:58 +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=-6.9 required=2.0 tests=BAYES_00,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 708D129FF1 for ; Wed, 14 Sep 2016 20:25:55 +0000 (UTC) Received: from localhost ([::1]:58586 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkGkl-0000iq-4C for patchwork-qemu-devel@patchwork.kernel.org; Wed, 14 Sep 2016 16:25:55 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38074) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkGgw-0006Ez-0a for qemu-devel@nongnu.org; Wed, 14 Sep 2016 16:21:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bkGgt-00013O-ST for qemu-devel@nongnu.org; Wed, 14 Sep 2016 16:21:56 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:44568 helo=mail.rt-rk.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkGgt-000137-LS for qemu-devel@nongnu.org; Wed, 14 Sep 2016 16:21:55 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id D7F271A45E4; Wed, 14 Sep 2016 22:21:54 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com Received: from mcs19.domain.local (mcs19.domain.local [10.10.13.51]) by mail.rt-rk.com (Postfix) with ESMTPSA id BE1C41A211A; Wed, 14 Sep 2016 22:21:54 +0200 (CEST) From: Aleksandar Markovic To: qemu-devel@nongnu.org, riku.voipio@iki.fi, peter.maydell@linaro.org, petar.jovanovic@imgtec.com, miodrag.dinic@imgtec.com, aleksandar.rikalo@imgtec.com, aleksandar.markovic@imgtec.com Date: Wed, 14 Sep 2016 22:19:58 +0200 Message-Id: <20160914202008.14119-6-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160914202008.14119-1-aleksandar.markovic@rt-rk.com> References: <20160914202008.14119-1-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PATCH v5 5/8] linux-user: Fix msgrcv() and msgsnd() syscalls support 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 From: Aleksandar Markovic If syscalls msgrcv() and msgsnd() fail, they return E2BIG, EACCES, EAGAIN, EFAULT, EIDRM, EINTR, EINVAL, ENOMEM, or ENOMSG. By examining negative scenarios of these syscalls for Mips, it was established that ENOMSG does not have the same value accross all platforms, but it is nevertheless not included for conversion in the correspondant conversion table defined in linux-user/syscall.c. This is certainly a bug, since it leads to the incorrect emulation of msgrcv() and msgsnd() for scenarios involving ENOMSG. This patch fixes this by extending the conversion table to include ENOMSG. Also, LTP test msgrcv04 will be fixed for some platforms. Signed-off-by: Aleksandar Markovic Reviewed-by: Laurent Vivier --- linux-user/syscall.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 7f8ae41..bdc12ae 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -750,6 +750,9 @@ static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { #ifdef ENOTRECOVERABLE [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, #endif +#ifdef ENOMSG + [ENOMSG] = TARGET_ENOMSG, +#endif }; static inline int host_to_target_errno(int err)