From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15662 invoked by alias); 22 Nov 2004 22:24:03 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 15587 invoked from network); 22 Nov 2004 22:23:58 -0000 Received: from unknown (HELO walton.sibelius.xs4all.nl) (82.92.89.47) by sourceware.org with SMTP; 22 Nov 2004 22:23:58 -0000 Received: from elgar.sibelius.xs4all.nl (elgar.sibelius.xs4all.nl [192.168.0.2]) by walton.sibelius.xs4all.nl (8.13.0/8.13.0) with ESMTP id iAMMNs4a016600; Mon, 22 Nov 2004 23:23:54 +0100 (CET) Received: from elgar.sibelius.xs4all.nl (localhost [127.0.0.1]) by elgar.sibelius.xs4all.nl (8.12.6p3/8.12.6) with ESMTP id iAMMNss0011797; Mon, 22 Nov 2004 23:23:54 +0100 (CET) (envelope-from kettenis@elgar.sibelius.xs4all.nl) Received: (from kettenis@localhost) by elgar.sibelius.xs4all.nl (8.12.6p3/8.12.6/Submit) id iAMMNsTb011794; Mon, 22 Nov 2004 23:23:54 +0100 (CET) Date: Tue, 23 Nov 2004 11:46:00 -0000 Message-Id: <200411222223.iAMMNsTb011794@elgar.sibelius.xs4all.nl> From: Mark Kettenis To: ac131313@redhat.com CC: gdb@sources.redhat.com In-reply-to: <41A25D23.9080802@redhat.com> (message from Andrew Cagney on Mon, 22 Nov 2004 16:41:55 -0500) Subject: Re: new option --readnever & script gstack? References: <41A24D4E.6090301@redhat.com> <200411222052.iAMKqQ2X011447@elgar.sibelius.xs4all.nl> <41A25D23.9080802@redhat.com> X-SW-Source: 2004-11/txt/msg00220.txt.bz2 Date: Mon, 22 Nov 2004 16:41:55 -0500 From: Andrew Cagney Mark Kettenis wrote: > It's not really clear what it'd actually do. If it really won't read > in any symbolic debug info, it'll probably be pretty useless. > Remember we're relying more and more on DWARF CFI to unwind the stack. Symbolic debug information, for dwarf2 is stuff found in .debug_info. CFI and eh-frame are lower level than that. Well, CFI is normally found in .dwarf_frame, which is at the same level at .debug_info. There is also CFI in .eh_frame, but in general only for C++ code (or code compiled with -fexceptions). Only on amd64 CFI in .eh_frame is generated by default. Mark