John Baldwin 8d8a74e69e Mark procfs-based process debugging as deprecated for FreeBSD 13.
Attempting to use ioctls on /proc/<pid>/mem to control a process will
trigger warnings on the console.  The <sys/pioctl.h> include file will
also now emit a compile-time warning when used from userland.

Reviewed by:	emaste
MFC after:	1 week
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D23822
2020-03-17 18:44:03 +00:00
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