extension .so "not in executable format"

L. Duke · **Author**

I'm compiling my extension on Debian Lenny (with GCC 4.1.2) and it works fine.

When I try to use it on CentOS (with GCC 4.1.2), srcds crashes. GDB shows me this error:

Code:

Program exited with code 01.
(gdb) "/home/duke/tf/orangebox/tf/addons/sourcemod/extensions/dukehacks.ext.so": not in executable format: File format not recognized.

Any ideas? I thought maybe it was a problem transferring it, so I used tar to compress and uncompress it before and after transferring. I also made sure to use a binary ftp transfer.

bl4nk · 11-12-2008 , 17:25 Re: extension .so "not in executable format"

chmod +x dukehacks.ext.so?

L. Duke · 11-12-2008 , 17:47 Re: extension .so "not in executable format"

One of the first things I checked.

Permissions are u=rwx just like the rest of the extensions.

L. Duke · 11-12-2008 , 18:11 Re: extension .so "not in executable format"

I figured it out. It's SELinux. Disabling SELinux fixes the problems. I'm trying to figure out how to set the permissions so that isn't necessary now.

Lebson506th · 11-12-2008 , 18:12 Re: extension .so "not in executable format"

SELinux always gives me problems -.-

I just set it to "permissive" mode temporarily as a work around.

L. Duke · 11-12-2008 , 18:35 Re: extension .so "not in executable format"

Funny thing is, I had it in permissive. It still wouldn't load until I disabled it completely.

Lebson506th · 11-12-2008 , 18:38 Re: extension .so "not in executable format"

Wow.

Super strict, huh.

BAILOPAN · 11-21-2008 , 23:03 Re: extension .so "not in executable format"

SELinux is very strict. If you use pax or grsecurity you might have to paxctl (or chpax).