FoxPro on FreeBSD

[Kevin Day]

I did some debugging, and watched how the process was getting launched, and I've managed to get it to load!

The problem was that COFF files expect to be mapped into memory at address 0, something that processes are no longer allowed to do.

Run "sysctl security.bsd.map_at_zero=1”  or add “security.bsd.map_at_zero=1“ to /etc/sysctl.conf and you should have it working. We probably should either make an exception for COFF files to bypass this the sysctl restriction, or at least print a more helpful error than just letting the process segfault because it didn’t get mapped where it was supposed to go.

— Kevin


On Oct 23, 2013, at 8:58 PM, Puppet Master <pmaster at mindslayer.net> wrote:

> Hello,
> 
> A couple of years ago I posted a message on the forums, regarding getting FoxPro (for SCO Unix) working on FreeBSD. The direct link to the forum is here:
> http://forums.freebsd.org/showthread.php?t=19764
> 
> From version 2.2.8 to 7.4 of FreeBSD this has worked flawlessly, but ceased to run with version 8.1.
> 
> I would really love for this to continue working with future versions but have not found anyone that can help. A few days ago I received a private message on the forum requesting that I please post to hackers@ to see if anyone could help. The idea being that "Its unlikely the SCO binaries get tested very regularly."
> 
> So here I am.  In case anyone wants to test the FoxPro for FreeBSD, you can download my Perl script that installs it from here: http://www.at-vantage.com/foxfiles/foxp_install.txt
> 
> (rename the foxp_install.txt to foxp_install.pl).
> This checks for i386, FreeBSD version before installing so if you plan on testing it on 8.1 or above, you may need to modify the script and comment out the sections that check for that.
> 
> I do hope that someone can help, it would be great if the SCO binary for FoxPro would function again.
> 
> Thanks.
> 
> 
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