Article View: gnu.gdb.bug
Article #2801Re: gdb 5.1 dumped core on me [was: Emacs abort under gdb]
From: Andrew Cagney
Date: Thu, 24 Jan 2002 07:52
Date: Thu, 24 Jan 2002 07:52
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> From: Francesco Potorti` <pot@gnu.org> >> Date: Tue, 22 Jan 2002 12:27:11 +0100 >> >> (gdb) p/x current_buffer->auto_save_file_name >> $59 = 0x1827b31c >> (gdb) xstring >> $60 = (struct Lisp_String *) 0x827b31c >> Segmentation fault (core dumped) > > > Does GDB's core file say something interesting about where did GDB > crash? Especially a backtrace. The other useful thing would be a confirmation that the Debian GDB 5.1 really is a stock GDB 5.1 and doesn't have patches applied. Is there anything unusual in the startup message for instance? > Anyway, since no one responded, let me rephrase the (implicit) > question in Francesco's report: Is GDB supposed to handle invalid > memory accesses gracefully? That is, if the user asks GDB to access > the inferior's memory via an invalid pointer, does GDB protect itself > against SIGSEGV and other related calamities? GDB should never dump core. Which means it does need to try to protect its self from such calamities. Andrew
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f5053,410b098bbbab7603 X-Google-Attributes: gidf5053,public X-Google-ArrivalTime: 2002-01-23 23:52:14 PST x-uunet-gateway: mr1.ash.ops.us.uu.net from bug-gdb to gnu.gdb.bug; Thu, 24 Jan 2002 07:52:13 GMT Message-ID: <3C4FBD28.7080506@cygnus.com> Date: Thu, 24 Jan 2002 02:52:08 -0500 From: ac131313@cygnus.com (Andrew Cagney) User-Agent: Mozilla/5.0 (X11; U; NetBSD macppc; en-US; rv:0.9.7) Gecko/20020103 X-Accept-Language: en-us MIME-Version: 1.0 Subject: Re: gdb 5.1 dumped core on me [was: Emacs abort under gdb] References: <E16LkEc-0007YI-00@pot.cnuce.cnr.it> <200201030031.g030V6n03535@aztec.santafe.edu> <E16NaIT-0005W4-00@pot.cnuce.cnr.it> <200201080630.g086Upf05212@aztec.santafe.edu> <E16SeTn-0003nm-00@pot.cnuce.cnr.it> <200201220539.g0M5dC814870@aztec.santafe.edu> <E16Sz55-0003jb-00@pot.cnuce.cnr.it> <200201240740.JAA16532@is.elta.co.il> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Approved: bug-gdb-request@mail.gnu.org Newsgroups: gnu.gdb.bug Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!cyclone.bc.net!newsfeed.direct.ca!look.ca!newsfeed.icl.net!dispose.news.demon.net!demon!colt.net!newspeer.clara.net!news.clara.net!news2.euro.net!uunet!ash.uu.net!spool0901.news.uu.net!wendy-fate.uu.net!bug-gdb Sender: bug-gdb-request@mail.gnu.org Lines: 37