From patchwork Sun Apr 4 11:58:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alejandro Colomar X-Patchwork-Id: 42904 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 26068386100B; Sun, 4 Apr 2021 11:59:55 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 26068386100B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1617537595; bh=pcPv5Fuq5z0fIsLcPIO2L+6g4NPWa5MD8jyc9rRrveQ=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=kKJ4gn/j+CpObdZWVH6dnv3qtViUCKAgCuJJ4Hsjce4ZLESb5twbbLTJgiSPxcQ99 jrhqxmgAfICaTGQJtbwCUf8kGlCtQ7uNyjOEYK1eUhdMcZKfYhdtnx6oAewkMY3C1l wy3dQMUDlu34QGBkod9uS3Alim/r/m9W3t+ZuEp0= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) by sourceware.org (Postfix) with ESMTPS id 2D86C3850407 for ; Sun, 4 Apr 2021 11:59:51 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 2D86C3850407 Received: by mail-wr1-x42e.google.com with SMTP id j18so8598180wra.2 for ; Sun, 04 Apr 2021 04:59:51 -0700 (PDT) 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=pcPv5Fuq5z0fIsLcPIO2L+6g4NPWa5MD8jyc9rRrveQ=; b=AYHMYIpRAc0ZchENobi3SkxhVEAnapK0gxmXNr+xkyd3mR3+hrwyp7Cq6w9vUyXOwe GKfMCs+94aXNC4nyUmUuLxR/zl8FnyCHZUZ0B9P1iFD+m+bEynNqwEf3JlsRuu81Dd3+ H/wGB9r6SdKPpAdTCI3DAsU2oJnPVM1AoqJECu5GEs0dUu4Fb/2fQz97QLrvQG94eh9B 9tSCZggo5ub/nKkIVRQQN5gUA7KvOISUiyxclq6SPslNVl+JozXI8qqZ81OHLRGRlqxW /kuXDb8WI72MRBJ1ieORdENSBnybkX9Q2JH4r0yOghwivcZMMHlpaoPVKeXhfTQZWyn4 4KjQ== X-Gm-Message-State: AOAM531SP4zX1T8JrsMd0nb3F6unJsF/Dmo0EuFumSvSXBSsYNgJxKag F9fiMknoXmpTkDtrF9rNb/fkKFuWi60= X-Google-Smtp-Source: ABdhPJxWM1i6U8beK8Co/cYI7nm/TskUUs9NACQmBOgnjlQ6b6umcmeFvI95MFFmylfVBEXlL0D8vw== X-Received: by 2002:adf:a1d8:: with SMTP id v24mr23814265wrv.378.1617537590374; Sun, 04 Apr 2021 04:59:50 -0700 (PDT) Received: from localhost.localdomain ([170.253.36.171]) by smtp.googlemail.com with ESMTPSA id u2sm23786967wrp.12.2021.04.04.04.59.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Apr 2021 04:59:50 -0700 (PDT) To: mtk.manpages@gmail.com Subject: [PATCH v5 25/35] get_robust_list.2: Use syscall(SYS_...); for system calls without a wrapper Date: Sun, 4 Apr 2021 13:58:38 +0200 Message-Id: <20210404115847.78166-26-alx.manpages@gmail.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210403194026.102818-1-alx.manpages@gmail.com> References: <20210403194026.102818-1-alx.manpages@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-12.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Alejandro Colomar via Libc-alpha From: Alejandro Colomar Reply-To: Alejandro Colomar Cc: Alejandro Colomar , linux-man@vger.kernel.org, libc-alpha@sourceware.org Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Signed-off-by: Alejandro Colomar --- man2/get_robust_list.2 | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/man2/get_robust_list.2 b/man2/get_robust_list.2 index dd43cded2..b1368ddd3 100644 --- a/man2/get_robust_list.2 +++ b/man2/get_robust_list.2 @@ -32,16 +32,16 @@ get_robust_list, set_robust_list \- get/set list of robust futexes .SH SYNOPSIS .nf -.B #include -.B #include +.BR "#include " \ +" /* Definition of " "struct robust_list_head" " */" +.BR "#include " " /* Definition of " SYS_* " constants */" +.B #include .PP -.BI "long get_robust_list(int " pid ", struct robust_list_head **" head_ptr , -.BI " size_t *" len_ptr ); -.BI "long set_robust_list(struct robust_list_head *" head ", size_t " len ); +.BI "long syscall(SYS_get_robust_list, int " pid , +.BI " struct robust_list_head **" head_ptr ", size_t *" len_ptr ); +.BI "long syscall(SYS_set_robust_list," +.BI " struct robust_list_head *" head ", size_t " len ); .fi -.PP -.IR Note : -There are no glibc wrappers for these system calls; see NOTES. .SH DESCRIPTION These system calls deal with per-thread robust futex lists. These lists are managed in user space: @@ -138,9 +138,6 @@ could be found. These system calls were added in Linux 2.6.17. .SH NOTES These system calls are not needed by normal applications. -No support for them is provided in glibc. -In the unlikely event that you want to call them directly, use -.BR syscall (2). .PP A thread can have only one robust futex list; therefore applications that wish