From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: Finding the dump Date: Sun, 27 Jan 2019 19:46:20 +0100 Message-ID: <87o982vszn.fsf@igel.home> References: <83munr8jb1.fsf@gnu.org> <838szb8ey9.fsf@gnu.org> <83d0oj62bc.fsf@gnu.org> <87ef8z4g1m.fsf@igel.home> <838sz75u7p.fsf@gnu.org> <877eer4e4x.fsf@igel.home> <835zub5p3i.fsf@gnu.org> <8736pf408v.fsf@igel.home> <83womq3z5c.fsf@gnu.org> <871s4yxfvb.fsf@igel.home> <83o9823xcq.fsf@gnu.org> <87womqvyy4.fsf@igel.home> <4f30b2b598e71d2c6ad766a3da8e4a33.squirrel@dancol.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="170400"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.91 (gnu/linux) Cc: Eli Zaretskii , rpluim@gmail.com, emacs-devel@gnu.org To: "Daniel Colascione" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jan 27 19:48:27 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gnpTn-000iCy-BU for ged-emacs-devel@m.gmane.org; Sun, 27 Jan 2019 19:48:27 +0100 Original-Received: from localhost ([127.0.0.1]:49164 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gnpTm-00081m-9e for ged-emacs-devel@m.gmane.org; Sun, 27 Jan 2019 13:48:26 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:34515) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gnpSA-0007nk-Og for emacs-devel@gnu.org; Sun, 27 Jan 2019 13:46:47 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gnpRp-0005pu-Kf for emacs-devel@gnu.org; Sun, 27 Jan 2019 13:46:26 -0500 Original-Received: from mail-out.m-online.net ([212.18.0.9]:43866) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gnpRo-0005ow-AV; Sun, 27 Jan 2019 13:46:24 -0500 Original-Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 43nhYV1YQ4z1qxkk; Sun, 27 Jan 2019 19:46:22 +0100 (CET) Original-Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 43nhYV18zYz1qqkr; Sun, 27 Jan 2019 19:46:22 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Original-Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id DjUbZ5dGuXW4; Sun, 27 Jan 2019 19:46:21 +0100 (CET) X-Auth-Info: cVQWOiuIK/T1IjalDOYETp28WxFnWpUfk9gGizHLaI2yKzFlrImLxBNQ/V5d5Uhl Original-Received: from igel.home (ppp-188-174-153-117.dynamic.mnet-online.de [188.174.153.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sun, 27 Jan 2019 19:46:21 +0100 (CET) Original-Received: by igel.home (Postfix, from userid 1000) id C7D742C24D9; Sun, 27 Jan 2019 19:46:20 +0100 (CET) X-Yow: Is this TERMINAL fun? In-Reply-To: <4f30b2b598e71d2c6ad766a3da8e4a33.squirrel@dancol.org> (Daniel Colascione's message of "Sun, 27 Jan 2019 10:26:47 -0800") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.18.0.9 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:232731 Archived-At: On Jan 27 2019, "Daniel Colascione" wrote: > There's some confusion on this thread. argv[0] *is* reliable Nope. The caller can set argv[0] to any string. It is in not required to be related to the name of the executable in any way. > every system I've seen. Here's the algorithm: look at argv[0]: if it's not > an absolute path, make it absolute by prepending the startup CWD. If the executable is found on $PATH then argv[0] is *not* relative to CWD. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."