Date: Wed, 8 May 1996 15:19:57 -0600 From: Nate Williams <nate@sri.MT.net> To: "Jesus A. Mora Marin" <amora@obelix.cica.es> Cc: terry@lambert.org (Terry Lambert), freebsd-questions@freebsd.org Subject: Re: troubles with IBCS emulation Message-ID: <199605082119.PAA25506@rocky.sri.MT.net> In-Reply-To: <199605081300.PAA04660@obelix.cica.es> References: <199605032222.PAA14979@phaeton.artisoft.com> <199605081300.PAA04660@obelix.cica.es>
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Let me jump in here, though I don't remember the original posting.
>
> Hmm... SCO is not smart enough to include `gdb'. It uses `adb' (an
> assembler-only debugger, for hard-cored hackers) and `sdb' (a symbolic debugger
> lightyears behind gdb). Well I can get both of them, but how should you trace
> the sqlexec process? If you run it standalone it simply exits.
Compile a custom kernel with 'options KTRACE', and use it to see what's
happening. I'll bet it's looking for SCO shlibs, and it's dying because
it can't find them.
I currently have FreeBSD running a whole bunch of legacy SCO
applications which use Informix, but in order to avoid the necessity for
SCO shlibs (which kind of defeats the purpose of using FreeBSD) I had to
get a special release from Informix which was compiled statically. I'm
using Informix 5.07.UC1 w/out any problems with -current.
TCP/IP stuff doesn't work very well under -stable.
> `sbd' can do that. I should better read the sdb manpage. By the way: can gdb be
> recompiled in order to understand COFF binaries under FreeBSD? Would it work
> at all?
'Probably', but we do all of our debugging under SCO, and then run the
final product under FreeBSD for cost and performance reasons.
> > This would require an SCO system to test; sorry, I don't have one.
>
> Nor I do, and no intention of installing forty diskettes. Also, I have browsed
> old docs and can now confirm you that SCO Unix -I'm always talking about SVR3
> versions- doesn't have a lstat(2) syscall: in fact, symbolic links were
> introduced in SVR4 -AT&T was never very innovative-.
Umm, the version of SCO I have contains symlinks, and also lstat.
lstat(NS) 6 January 1993
lstat(NS)
Name
lstat - get file status
Syntax
#include <sys/types.h>
#include <sys/stat.h>
...
2% uname -a
spd spd 3.2 2 i386
> >> IBCS2: 'sysi86' function 104(0x68) not implemented yet
> >> IBCS2: 'sysi86' function 100(0x64) not implemented yet
I get this all the time, and have determine that whatever it's trying to
do is un-necessary, so it's commented out of my kernel sources.:)
Nate
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