From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Defending GCC considered futile Date: Tue, 10 Feb 2015 21:27:55 +0200 Message-ID: <83r3tx7eis.fsf@gnu.org> References: <20150207202952.1042BC00A6@snark.thyrsus.com> <87wq3rocqb.fsf@uwakimon.sk.tsukuba.ac.jp> <20150209172445.290dc20e@jabberwock.cb.piermont.com> <83mw4m8mi8.fsf@gnu.org> <54D9C18B.7060302@dancol.org> <8361b992tc.fsf@gnu.org> <54DA4BCE.8030804@dancol.org> <87r3txr4mg.fsf@fencepost.gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE X-Trace: ger.gmane.org 1423596511 29728 80.91.229.3 (10 Feb 2015 19:28:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 10 Feb 2015 19:28:31 +0000 (UTC) Cc: esr@snark.thyrsus.com, rms@gnu.org, perry@piermont.com, emacs-devel@gnu.org, stephen@xemacs.org, dancol@dancol.org To: David Kastrup Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Feb 10 20:28:22 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YLGTt-0002Nc-E2 for ged-emacs-devel@m.gmane.org; Tue, 10 Feb 2015 20:28:21 +0100 Original-Received: from localhost ([::1]:41507 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YLGTs-0002G3-JL for ged-emacs-devel@m.gmane.org; Tue, 10 Feb 2015 14:28:20 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:50004) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YLGTm-0002FC-21 for emacs-devel@gnu.org; Tue, 10 Feb 2015 14:28:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YLGTl-0007b2-45 for emacs-devel@gnu.org; Tue, 10 Feb 2015 14:28:13 -0500 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:56917) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YLGTe-0007Yu-PD; Tue, 10 Feb 2015 14:28:06 -0500 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0NJK00500LTWWU00@a-mtaout22.012.net.il>; Tue, 10 Feb 2015 21:28:05 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NJK005DXM2SSB90@a-mtaout22.012.net.il>; Tue, 10 Feb 2015 21:28:05 +0200 (IST) In-reply-to: <87r3txr4mg.fsf@fencepost.gnu.org> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 X-Received-From: 80.179.55.172 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:182835 Archived-At: > From: David Kastrup > Cc: Eli Zaretskii , esr@snark.thyrsus.com, stephen@= xemacs.org, perry@piermont.com, rms@gnu.org, emacs-devel@gnu.org > Date: Tue, 10 Feb 2015 19:41:27 +0100 >=20 > Most STL structures are also sort of a nuisance to examine in gdb. Use Python or Guile for that. Python scripts to do that float around= , AFAIR. > I=A0don't actually have any point of comparison, but I would imagin= e that > closer ties to a compiler could help here. Red herring: GDB is as closely tied with GCC as possible in this respect. All the problems with etc. are GCC bugs/misfeatures or insufficient expressive power of DWARF debug info= , which simply cannot describe accurately enough where a variable is held at some values of PC.