Date: Sun, 13 Feb 2005 22:46:29 -0500 From: Stephan Uphoff <ups@tree.com> To: Gerald Heinig <gheinig@syskonnect.de> Cc: hackers@freebsd.org Subject: Re: Firewire blues Message-ID: <1108352789.6309.9948.camel@palm.tree.com> In-Reply-To: <420B938D.2040708@syskonnect.de> References: <420731DD.3050206@syskonnect.de> <42088232.1030001@syskonnect.de> <1107888844.6309.221.camel@palm.tree.com> <1107964038.6309.1137.camel@palm.tree.com> <420B938D.2040708@syskonnect.de>
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On Thu, 2005-02-10 at 12:02, Gerald Heinig wrote: > Stephan Uphoff wrote: > > Once I linked in dcons, dcons_crom and firewire into the kernel > > everything worked. (I think only dcons is really needed - maybe a link > > set issue?) > > I only used the gdb stub method. > > > > Can you send me your dmesg? (After you linked the dcons stuff into the > > kernel) > > Another thing: what system are you on? -current? > I'm using 5.3-RELEASE and I've noticed that a lot of the commands and > responses in the HowTo are different to my system. > Could that be the problem? > > Cheers, > Gerald OK - I finally managed to try this on a newly installed 5.3-RELEASE. I copied the GENERIC config file (to GENERIC.debug) and added a few lines diff -u GENERIC GENERIC.debug --- GENERIC Sun Oct 24 14:02:52 2004 +++ GENERIC.debug Mon Feb 14 03:15:21 2005 @@ -24,6 +24,14 @@ cpu I686_CPU ident GENERIC +makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols +options KDB # Enable kernel debugger support. +options DDB # Support DDB. +options GDB # Support remote GDB. +options ALT_BREAK_TO_DEBUGGER +device dcons +device dcons_crom + # To statically compile in device wiring instead of /boot/device.hints #hints "GENERIC.hints" # Default places to look for devices. Then configured/compiled/installed the GENERIC.debug kernel. Copied the kernel.debug file in the GENERIC.debug compile directory to the debug station and rebooted the target machine. After reboot I set the default debugger to gdb target# sysctl -w debug.kdb.current=gdb and entered the debugger target# sysctl -w debug.kdb.enter=1 On the debugging station I entered debug 1# dconschat -br -G 5555 -t <firewire address of target> and then in another window debug 2# kgdb -r :5555 kernel.debug And it just worked for me. I have to admit that my debugging machine is not 5.3 .. but I believe I used the same setup with pre 5.3 userland before. Let me know if you can repeat my steps. If not then I can set up a 5.3 debugging station in the next days. Stephan
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