From patchwork Tue May 12 16:36:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Martin X-Patchwork-Id: 11543513 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7AE69139A for ; Tue, 12 May 2020 16:38:24 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 38C3E20714 for ; Tue, 12 May 2020 16:38:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="NUJ2/wI7" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 38C3E20714 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=ZSZNhybnsb4SsG2IcNKXttY5fRQ4xEO/4C+wfxBb16c=; b=NUJ2/wI7n+g5onuEomsgMIc5sb gj3nAsmYSv8TP27LKCa0kplUXAYoO+aNYj8ATCyKCV+GqNz6vX4RMKwVMRV/+DHq5v62Lm5Pug00v AwxGSXmAG3atSV2eqPC2UNiJ6SyGAC10GcJkI6GSkDWiibmrFPOZPkfP2SgfpYVZaq+UOrSNbm3u3 q/mnp3UD9gy7d715W2ILggX/YktfoJQuGNWmveRMNMll/rUnJwMyG2Ehp8qBhfCr+Zm1mvm3YBKGg nyl2ZbtYsQZzS+afMgsdF0QpYVaDLZP5F4LgN9zSlkrCm0izr1wz1sW3m6Neafdohg1Zux7IfyX0A a3MYpZQA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYXv9-0008Og-7n; Tue, 12 May 2020 16:38:19 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYXuf-0007qu-4i for linux-arm-kernel@lists.infradead.org; Tue, 12 May 2020 16:37:50 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 60BA511B3; Tue, 12 May 2020 09:37:48 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B0B593F305; Tue, 12 May 2020 09:37:47 -0700 (PDT) From: Dave Martin To: mtk.manpages@gmail.com Subject: [PATCH 03/14] prctl.2: tfix mis-description of thread ID values in procfs Date: Tue, 12 May 2020 17:36:48 +0100 Message-Id: <1589301419-24459-4-git-send-email-Dave.Martin@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1589301419-24459-1-git-send-email-Dave.Martin@arm.com> References: <1589301419-24459-1-git-send-email-Dave.Martin@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200512_093749_252841_7FE11132 X-CRM114-Status: UNSURE ( 9.16 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linux-man@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Under PR_SET_NAME, the [tid] value seen in procfs as /proc/self/task/[tid] is mistakenly described as the name of the thread, whereas really the name is on /proc/self/task/[tid]/comm. Fix it. Signed-off-by: Dave Martin --- man2/prctl.2 | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/man2/prctl.2 b/man2/prctl.2 index a35b748..9736434 100644 --- a/man2/prctl.2 +++ b/man2/prctl.2 @@ -808,8 +808,10 @@ and retrieved using The attribute is likewise accessible via .IR /proc/self/task/[tid]/comm , where -.I tid -is the name of the calling thread. +.I [tid] +is the the thread ID of the calling thread, as returned by +.BR gettid (2). +.\" prctl PR_GET_NAME .TP .BR PR_GET_NAME " (since Linux 2.6.11)" Return the name of the calling thread,