[Vm-dev] trouble with FFI primitives

[Bert Freudenberg]

On 23.10.2009, at 14:41, Michael Haupt wrote:

>
> Hi,
>
> we're experiencing something strange with Squeak and FFI on Linux.
> Could someone please give us some insight on the problem at hand, and
> how to solve it?
>
> /usr/lib/squeak/3.11.3-2135/so.SqueakFFIPrims: cannot enable
> executable stack as shared object requires: Permission denied

Try

echo 0 > /proc/sys/kernel/exec-shield

If it works then, you need to figure out which compiler flags to use  
to allow the stack to be executable. I'd expect compiling the VM (or  
just the FFI module) on the same system as your library would make it  
work. For enlightenment (or frustration, depending on your POV) read  
this:

http://people.redhat.com/drepper/nonselsec.pdf

- Bert -