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=-10.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 C292AC433E0 for ; Mon, 13 Jul 2020 10:06:27 +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 97B4D20758 for ; Mon, 13 Jul 2020 10:06:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 97B4D20758 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53172 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1juvLu-0003Rh-TZ for qemu-devel@archiver.kernel.org; Mon, 13 Jul 2020 06:06:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43852) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1juvL5-0002Ze-HG for qemu-devel@nongnu.org; Mon, 13 Jul 2020 06:05:35 -0400 Received: from mx2.suse.de ([195.135.220.15]:52748) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1juvL3-00048C-Te for qemu-devel@nongnu.org; Mon, 13 Jul 2020 06:05:35 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id A1A3DB0B6; Mon, 13 Jul 2020 10:05:34 +0000 (UTC) From: Andreas Schwab To: Laurent Vivier Subject: [PATCH] linux-user: implement the semtimedop syscall X-Yow: .. the MYSTERIANS are in here with my CORDUROY SOAP DISH!! Date: Mon, 13 Jul 2020 12:05:32 +0200 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=195.135.220.15; envelope-from=schwab@suse.de; helo=mx2.suse.de X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/13 00:02:19 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x (no timestamps) [generic] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, 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: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Andreas Schwab --- linux-user/syscall.c | 32 +++++++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 9ec03a889d..7c0f5b83ff 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -3877,23 +3877,37 @@ static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf, return 0; } -static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops) +static inline abi_long do_semtimedop(int semid, abi_long ptr, unsigned nsops, + abi_long timeout) { struct sembuf sops[nsops]; + struct timespec ts, *pts; abi_long ret; if (target_to_host_sembuf(sops, ptr, nsops)) return -TARGET_EFAULT; + if (timeout) { + pts = &ts; + if (target_to_host_timespec(pts, timeout)) { + return -TARGET_EFAULT; + } + } else { + pts = NULL; + } + ret = -TARGET_ENOSYS; #ifdef __NR_semtimedop - ret = get_errno(safe_semtimedop(semid, sops, nsops, NULL)); + ret = get_errno(safe_semtimedop(semid, sops, nsops, pts)); #endif #ifdef __NR_ipc if (ret == -TARGET_ENOSYS) { - ret = get_errno(safe_ipc(IPCOP_semtimedop, semid, nsops, 0, sops, 0)); + ret = get_errno(safe_ipc(IPCOP_semtimedop, semid, nsops, 0, sops, pts)); } #endif + if (!is_error(ret) && timeout) { + ret = host_to_target_timespec(timeout, pts); + } return ret; } @@ -4371,7 +4385,11 @@ static abi_long do_ipc(CPUArchState *cpu_env, switch (call) { case IPCOP_semop: - ret = do_semop(first, ptr, second); + ret = do_semtimedop(first, ptr, second, 0); + break; + + case IPCOP_semtimedop: + ret = do_semtimedop(first, ptr, second, third); break; case IPCOP_semget: @@ -9683,7 +9701,11 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, #endif #ifdef TARGET_NR_semop case TARGET_NR_semop: - return do_semop(arg1, arg2, arg3); + return do_semtimedop(arg1, arg2, arg3, 0); +#endif +#ifdef TARGET_NR_semtimedop + case TARGET_NR_semtimedop: + return do_semtimedop(arg1, arg2, arg3, arg4); #endif #ifdef TARGET_NR_semctl case TARGET_NR_semctl: -- 2.26.2 -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."