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 3DBB9C7EE23 for ; Fri, 24 Feb 2023 23:31:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229452AbjBXXbx (ORCPT ); Fri, 24 Feb 2023 18:31:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229454AbjBXXbw (ORCPT ); Fri, 24 Feb 2023 18:31:52 -0500 Received: from vmicros1.altlinux.org (vmicros1.altlinux.org [194.107.17.57]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 12A056F43A for ; Fri, 24 Feb 2023 15:31:50 -0800 (PST) Received: from mua.local.altlinux.org (mua.local.altlinux.org [192.168.1.14]) by vmicros1.altlinux.org (Postfix) with ESMTP id 472E372C90B; Sat, 25 Feb 2023 02:31:49 +0300 (MSK) Received: by mua.local.altlinux.org (Postfix, from userid 508) id 26C107CFDF4; Sat, 25 Feb 2023 02:31:49 +0300 (MSK) Date: Sat, 25 Feb 2023 02:31:49 +0300 From: "Dmitry V. Levin" To: =?utf-8?B?zqbPjs+EzrfPgiDOks6xzrvOsc+DzrnOrM60zrfPgg==?= Cc: linux-man@vger.kernel.org, alx.manpages@gmail.com, mtk.manpages@gmail.com, Nate Eldredge , Elvira Khabirova Subject: Re: [PATCH] ptrace.2: Add details about usage of PTRACE_GET_SYSCALL_INFO Message-ID: <20230224233148.GB9955@altlinux.org> References: <20230224163142.29934-1-fvalasiad@gmail.com> <20230224185347.GB7758@altlinux.org> <2d242bd0-becc-71d3-3666-43c9271d143b@gmail.com> <20230224220502.GA9955@altlinux.org> <23a102ec-e146-0e82-c5d2-434e9ae56b28@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <23a102ec-e146-0e82-c5d2-434e9ae56b28@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org On Sat, Feb 25, 2023 at 01:05:24AM +0200, Φώτης Βαλασιάδης wrote: > So, what about this? > > diff --git a/man2/ptrace.2 b/man2/ptrace.2 > index 55d9fd36d..e5f49c289 100644 > --- a/man2/ptrace.2 > +++ b/man2/ptrace.2 > @@ -1111,6 +1111,16 @@ stop. >  .B PTRACE_SYSCALL_INFO_NONE >  No component of the union contains relevant information. >  .RE > +.IP > +Note that in case of > +.B PTRACE_SYSCALL > +syscall entry or exit stops, the data returned by I'm not sure about mentioning PTRACE_SYSCALL in this context as it's not the only way to have the tracee stopped at a syscall stop. > +.B PTRACE_GET_SYSCALL_INFO > +is limited to type > +.B PTRACE_SYSCALL_INFO_NONE > +unless > +.B PTRACE_O_TRACESYSGOOD > +option is set before the corresponding ptrace stop has occurred. >  .\" >  .SS Death under ptrace >  When a (possibly multithreaded) process receives a killing signal -- ldv