CVS commit: src/sys

["Andrew Doran" <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Thu Jan 23 10:21:14 UTC 2020

Modified Files:
        src/sys/kern: kern_pax.c kern_sig.c vfs_vnode.c
        src/sys/sys: pax.h vnode.h

Log Message:
PAX_SEGVGUARD doesn't seem to work properly in testing for me, but at least
make it not cause problems:

- Cover it with exec_lock so the updates are not racy.
- Using fileassoc is silly.  Just hang a pointer off the vnode.


To generate a diff of this commit:
cvs rdiff -u -r1.60 -r1.61 src/sys/kern/kern_pax.c
cvs rdiff -u -r1.381 -r1.382 src/sys/kern/kern_sig.c
cvs rdiff -u -r1.107 -r1.108 src/sys/kern/vfs_vnode.c
cvs rdiff -u -r1.26 -r1.27 src/sys/sys/pax.h
cvs rdiff -u -r1.286 -r1.287 src/sys/sys/vnode.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.