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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 B4B2DC433ED for ; Mon, 10 May 2021 17:57:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 987D061481 for ; Mon, 10 May 2021 17:57:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233004AbhEJR6H (ORCPT ); Mon, 10 May 2021 13:58:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54522 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232710AbhEJR6G (ORCPT ); Mon, 10 May 2021 13:58:06 -0400 Received: from mail-wr1-x433.google.com (mail-wr1-x433.google.com [IPv6:2a00:1450:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A16F5C061574 for ; Mon, 10 May 2021 10:57:01 -0700 (PDT) Received: by mail-wr1-x433.google.com with SMTP id h4so17510846wrt.12 for ; Mon, 10 May 2021 10:57:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=xjxtXDywb0s139fONhfnTw35XQrmKhcgjPyWrpJqsa0=; b=bpkl3W8NLiBCjdmDwNEli5+utacZZnAe4SQWL6BbL1pYUxU+lfFyzjOOmvO8oP1icN mZkYsOsSxLhhMu+S/TkNlnxFEKI4tEc7QSNjO7W79L1kOOYc5ymDs/tUD833R8aZNt2I KR5dvlhXPdsOTniAEOjo0gICVGvME0cNGOB5CN1+GU+GPUOwXlktLvtWq5hfnffpfC6J CuKGrzAkj0Z7fzdGqqEg28+w8vUPDbyHSZn2xFLneVOuYzpjC4QvRpjGWlR5JNwdBuTg FVFiX/JQsqL7JaTf/ptSY6QY4+XGloGOhdLzOYf+U4tJy7oLgQkF6aFhNJyW3r/KJgVA T4WA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xjxtXDywb0s139fONhfnTw35XQrmKhcgjPyWrpJqsa0=; b=Jy5vVb2n0x72SXNQ4U/FWBXIfLbsgOopcZkgHgTVQ0XgX/lzT4qN7bICm8jB6RkFSy ro99rqBKki7hPfR/xmaV98apyVH/6/5w2zRQaWe0AF41f/ZEubozE56fPEYXdjfKkSui FHaNxytkNH2Qo8/dY3QyArwPPU3ENFW/iumCLorix8ozjTOKXBwjL2ofW/qh5RncZrNC paTF+YmLx8Ka52Y810lqFMxEYqDJ9Hh5S6EBxsPAHzNJqZx7DDz9wBwiSPkpN9g43i8x HM0SYWAQ01rw1D/bGw41lDB6sxnJPfT/S5ZlScLxojMhdoEkCWI3nZVsY+oDctiDTtc5 rsvA== X-Gm-Message-State: AOAM532/cVVeTc5ZM8JAPFjsfdyeQi+u7Iwm5GCq9XCz1rauJgVe9SAP t7LWHLRuWO3Ku2QyQR6ISvk= X-Google-Smtp-Source: ABdhPJwT0SfNY/VAmKey/5nRXYDl01hC5QVlGcYQPJMoCqVwReVp23aQK6lER6R9HFhchBvpNtnX8A== X-Received: by 2002:adf:d1c4:: with SMTP id b4mr32651069wrd.301.1620669420410; Mon, 10 May 2021 10:57:00 -0700 (PDT) Received: from sqli.sqli.com ([195.53.121.100]) by smtp.googlemail.com with ESMTPSA id m13sm24318830wrw.86.2021.05.10.10.56.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 May 2021 10:57:00 -0700 (PDT) From: Alejandro Colomar To: mtk.manpages@gmail.com Cc: Florian Weimer , Jakub Wilk , Alejandro Colomar , linux-man@vger.kernel.org, libc-alpha@sourceware.org Subject: [PATCH 30/39] pidfd_open.2: Use syscall(SYS_...); for system calls without a wrapper Date: Mon, 10 May 2021 19:55:39 +0200 Message-Id: <20210510175546.28445-31-alx.manpages@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210510175546.28445-1-alx.manpages@gmail.com> References: <20210510175546.28445-1-alx.manpages@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org Signed-off-by: Alejandro Colomar --- man2/pidfd_open.2 | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/man2/pidfd_open.2 b/man2/pidfd_open.2 index d0bb1769b..cb91ce71f 100644 --- a/man2/pidfd_open.2 +++ b/man2/pidfd_open.2 @@ -27,11 +27,17 @@ pidfd_open \- obtain a file descriptor that refers to a process .SH SYNOPSIS .nf -.BI "int pidfd_open(pid_t " pid ", unsigned int " flags ); +.BR "#include " " /* Definition of " SYS_* " constants */" +.B #include +.PP +.BI "int syscall(SYS_pidfd_open, pid_t " pid ", unsigned int " flags ); .fi .PP .IR Note : -There is no glibc wrapper for this system call; see NOTES. +glibc provides no wrapper for +.BR pidfd_open (), +necessitating the use of +.BR syscall (2). .SH DESCRIPTION The .BR pidfd_open () @@ -89,9 +95,6 @@ first appeared in Linux 5.3. .BR pidfd_open () is Linux specific. .SH NOTES -Glibc does not provide a wrapper for this system call; call it using -.BR syscall (2). -.PP The following code sequence can be used to obtain a file descriptor for the child of .BR fork (2): -- 2.31.1