From owner-freebsd-alpha Thu Apr 8 14:29: 7 1999 Delivered-To: freebsd-alpha@freebsd.org Received: from octopus.originative (originat.demon.co.uk [158.152.220.9]) by hub.freebsd.org (Postfix) with ESMTP id 5063715515 for ; Thu, 8 Apr 1999 14:28:55 -0700 (PDT) (envelope-from paul@originative.co.uk) Received: by octopus with Internet Mail Service (5.5.2232.9) id <2RSVN3LD>; Thu, 8 Apr 1999 22:24:58 +0100 Message-ID: From: paul@originative.co.uk To: gallatin@cs.duke.edu, simokawa@sat.t.u-tokyo.ac.jp Cc: dfr@nlsystems.com, freebsd-alpha@FreeBSD.ORG Subject: RE: _start or __start? Date: Thu, 8 Apr 1999 22:24:57 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2232.9) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > -----Original Message----- > From: Andrew Gallatin [mailto:gallatin@cs.duke.edu] > Sent: 08 April 1999 15:25 > To: Hidetoshi Shimokawa > Cc: dfr@nlsystems.com; freebsd-alpha@FreeBSD.ORG > Subject: Re: _start or __start? > > > > Hidetoshi Shimokawa writes: > > I recompiled gdb and it starts to work again. > > But it cannot load core file. Is this the problem of gdb or > > of cpu_coredump() in /sys/alpha/alpha/vm_machdep.c? > > NetBSD seems to have more complex cpu_coredump(). > > Darn! I'd forgotten about this.. My gdb only works interactively for > user programs. > > As to where the problem is, I have no clue. That's why I never fixed > it. Ahh, that explains why I couldn't use it to do postmortem analysis then! I couldn't use it to do interactive debugging either since I couldn't get the FreeBSD hacks to use the serial port for remote gdb and the console to work. My alpha work is temporarily sidelined since I'm a bit busy and the Multia is proving a challenge to do development work on. 1) NFS crashes when you load it as a KLD, consistently reproducible. NFS is essential since there's too little disk on the Multia to do any development work. 2) No TGA support so you have to use the serial console which precludes using remote GDB. 3) No GDB support for core dumps, so effectively there's no GDB support at all for me. 4) Although I've put a Matrox millenium PCI card in, syscons doesn't see it. vga0 detects it but syscons doesn't. Hopefully in another week I'll have more time to look into some of these problems again. Paul. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message