Hi, here is a second version. I've tried to address all comments
(for which I'm really grateful). I believe the main question which
remains opened is exe-fd setup. Hopefully the current limitation
(root only) would be enough.
Also, Julien, there is no additional need for ordering test of
@start_stack member since we use find_vma helper.
Please take a look, once you have a spare minutes, thanks!
Cyrill