From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 105322 invoked by alias); 13 Jul 2018 13:54:20 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 105223 invoked by uid 89); 13 Jul 2018 13:54:19 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-15.9 required=5.0 tests=AWL,BAYES_00,GIT_PATCH_1,GIT_PATCH_2,GIT_PATCH_3,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: eggs.gnu.org Received: from eggs.gnu.org (HELO eggs.gnu.org) (208.118.235.92) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 13 Jul 2018 13:54:17 +0000 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fdyWR-0006dX-CC for gdb-patches@sourceware.org; Fri, 13 Jul 2018 09:54:16 -0400 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:46826) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fdyWR-0006dF-7g; Fri, 13 Jul 2018 09:54:11 -0400 Received: from [176.228.60.248] (port=2234 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1fdyWP-0003wo-8g; Fri, 13 Jul 2018 09:54:10 -0400 Date: Fri, 13 Jul 2018 13:54:00 -0000 Message-Id: <83muuvckcd.fsf@gnu.org> From: Eli Zaretskii To: Andrew Burgess CC: gdb-patches@sourceware.org In-reply-to: <20180713134629.27011-1-andrew.burgess@embecosm.com> (message from Andrew Burgess on Fri, 13 Jul 2018 14:46:29 +0100) Subject: Re: [PATCH] gdb: Add switch to disable DWARF stack unwinders References: <20180713134629.27011-1-andrew.burgess@embecosm.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-IsSubscribed: yes X-SW-Source: 2018-07/txt/msg00400.txt.bz2 > From: Andrew Burgess > Cc: Andrew Burgess > Date: Fri, 13 Jul 2018 14:46:29 +0100 > > Add a maintenance command to disable the DWARF stack unwinders. > Normal users would not need this feature, but it is useful to allow > extended testing of fallback stack unwinding strategies, for example, > prologue scanners. Thanks. > --- a/gdb/NEWS > +++ b/gdb/NEWS > @@ -7,6 +7,12 @@ > can be passed using the '[ADDRESS]:PORT' notation, or the regular > 'ADDRESS:PORT' method. > > +* New commands > + > +maint set dwarf unwinders (on|off) > +maint show dwarf unwinders > + Control whether DWARF unwinders can be used. > + > *** Changes in GDB 8.2 OK for this part. > +@cindex DWARF frame unwinders > +Many targets that support DWARF debugging use @value{GDBN}'s DWARF > +frame unwinders to build the backtrace. Many of these targets will > +also have a second mechanism for building the backtrace for use in > +cases where DWARF information is not available, this second mechanism > +is often an analysis of a functions prologue. ^^^^^^^^^^^^^^^^^^ I think you meant "function's prologue" there. The documentation parts are OK with the above nit fixed.