From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10343 invoked by alias); 31 Jul 2003 12:57:02 -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 10328 invoked from network); 31 Jul 2003 12:57:00 -0000 Received: from unknown (HELO nevyn.them.org) (66.93.172.17) by sources.redhat.com with SMTP; 31 Jul 2003 12:57:00 -0000 Received: from drow by nevyn.them.org with local (Exim 4.20 #1 (Debian)) id 19iCzK-0001hl-FF; Thu, 31 Jul 2003 08:56:58 -0400 Date: Thu, 31 Jul 2003 12:57:00 -0000 From: Daniel Jacobowitz To: gdb@sources.redhat.com, gdb-patches@sources.redhat.com Subject: Re: gdbserver multithread ARM gdb-5.3/5.2 Message-ID: <20030731125658.GA6448@nevyn.them.org> Mail-Followup-To: gdb@sources.redhat.com, gdb-patches@sources.redhat.com References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.1i X-SW-Source: 2003-07/txt/msg00364.txt.bz2 On Thu, Jul 31, 2003 at 02:27:25PM +0530, Vijay Saha, Noida wrote: > Hi > > I am new to gdbserver debugging. So I have got many queries...some of them > may be trivial..so forgive me for that... > > I am trying to have a gdbserver for arm-linux target and x86/linux GDB host. > I have tried using the GDB-5.2.1 but that gdbserver doesn't seem to support > mutithreading. > > Then I had downloaded the released GDB-5.3 through FTP from > sources.redhat.com. > Even the gdbserver of GDB-5.3 doesn't seem to work correctly for > multithreaded applications. > (gdb) info threads > > It only showed me the main thread ID and no other threads even if the test > application had many threads. > It even didn't stop at any breakpoint set on threads.. > > I think the released GDB -5.3 gdbserver is supposed to support > multithreading debugging for ARM targets properly. > > Moreover, On the GDB-patches mailing list I could find some PATCH mail from > Danil Jacobowitz but it says something about "lin-thread.c"... but in > GDB-5.3 I couldn't find any such file. > Is it a totally new file or I have interpreted something incorrect..?? No, that file is obsolete. > Is there any patch of gdbserver of gdb-5.3 or gdb-5.2 ?? > > To debug multithreaded applications, do I need to have the target arm-linux > shared libraries of libthread_db.so.1 on GDB host as well..?? > If yes where to copy it..?? You don't need libthread_db.so.1. You do need pretty much all other libraries. Please look in the manual under solib-absolute-prefix - I'm not sure it's documented in older versions of the manual, but it's there now. > Has anyone supported GDB-5.2 gdbserver for thread debugging (remotely) ?? > > Can someone help me in making myself clear about the patches and GDB > versions for multithreaded debugging through gdbserver ?? > > Is it possible that I use the gdbserver of GDB-5.3 and the GDB host of > GDB-5.2 ?? > I know it won't be recommended but how much is this feasible?? I doubt it will work. -- Daniel Jacobowitz MontaVista Software Debian GNU/Linux Developer