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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4DA8C7EE2F for ; Mon, 12 Jun 2023 20:47:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237682AbjFLUrr (ORCPT ); Mon, 12 Jun 2023 16:47:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236764AbjFLUqz (ORCPT ); Mon, 12 Jun 2023 16:46:55 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4BA202127 for ; Mon, 12 Jun 2023 13:46:27 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D954B62B2F for ; Mon, 12 Jun 2023 20:45:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43409C433A0; Mon, 12 Jun 2023 20:45:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686602716; bh=thHRx3gNkEts77+ULbTuRFI/XccuwcFtR++swDbxeA8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IIyRNxNo1pgSe1Dn8b4snZ4lkloc99dpMH5LjxJD09XIZhMLinvsM6aCNqRkPudK9 iDAHvmG/6AKVDvCEEaoOihPjy7/15YbJKo4UJZPLk7qLz+EiR8cQPCqWNhs9VJNq+M DyC7HuB7mg4tENGb/XCHuiAB+yKXtEqsEZQWHFlX5zivcdMriGnVO38bKHjKAsLIx+ e79wp1RiRUOc06c36NOCJQ2nwemqKeTseG/dIYgsTkeYKnFuEGNW2iSm/HGVqP5Jbi a0JhheIZMYY77d+ZPR6ysl8Z43aBXyTMPusrR4QclpuA9gvqlDq7ydPOiWtvdQmID4 wFvHN6MFlWm0g== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id B4267CE3A22; Mon, 12 Jun 2023 13:45:15 -0700 (PDT) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: gwml@vger.gnuweeb.org, kernel-team@meta.com, w@lwt.eu, =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , Willy Tarreau , "Paul E . McKenney" Subject: [PATCH v2 nolibc 05/53] tools/nolibc: add wrapper for memfd_create Date: Mon, 12 Jun 2023 13:44:26 -0700 Message-Id: <20230612204514.292087-5-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <8b757cc0-3719-4e63-a755-9710384137bc@paulmck-laptop> References: <8b757cc0-3719-4e63-a755-9710384137bc@paulmck-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Thomas Weißschuh This is useful for users and will also be used by a future testcase. Signed-off-by: Thomas Weißschuh Signed-off-by: Willy Tarreau Signed-off-by: Paul E. McKenney --- tools/include/nolibc/sys.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h index 5d624dc63a42..bea9760dbd16 100644 --- a/tools/include/nolibc/sys.h +++ b/tools/include/nolibc/sys.h @@ -1365,6 +1365,29 @@ ssize_t write(int fd, const void *buf, size_t count) return ret; } + +/* + * int memfd_create(const char *name, unsigned int flags); + */ + +static __attribute__((unused)) +int sys_memfd_create(const char *name, unsigned int flags) +{ + return my_syscall2(__NR_memfd_create, name, flags); +} + +static __attribute__((unused)) +int memfd_create(const char *name, unsigned int flags) +{ + ssize_t ret = sys_memfd_create(name, flags); + + if (ret < 0) { + SET_ERRNO(-ret); + ret = -1; + } + return ret; +} + /* make sure to include all global symbols */ #include "nolibc.h" -- 2.40.1