How can I enable PIE/ASLR in my monotouch application?

There is an option in XCode Build Settings called "Don't Create Position Independent Executables". This is straight-forward to enable here.

However, I'm using MonoDevelop and MonoTouch to develop my application, and I cannot find the equivalent setting there. I've tried passing the -fpie flag to the compiler, but doesn't seem to work. When I examine the compiled binary using otool, it does not have the PIE flag set.

Please help.

Solution

MonoTouch doesn't currently support position independent code, when we AOT the managed code we generate position dependent code.

We may fix this in the future, but right now it's not a priority.

Update

Apple has just started warning about non-PIE enabled executables when publishing to the App Store. This will obviously shift our priorities.

Update 2

We have a potential fix which is going through testing / QA (but no firm release date yet).

Update 3 (2015/03/21)

This was fixed a long time ago.