paxctl(1) on Linux
The text d31d52332bdf, as Debian 4.0 (Etch) shipped it.
user-space utility to control PaX flags
Flags it lists
-
-E -
-M -
-P -
-Q -
-R -
-S -
-X -
-c -
-e -
-m -
-p -
-q -
-r -
-s -
-v -
-x -
-z