src/lib/libc/sys, branch release/11.1.0

MFC r320801 MFS r320887:

2017-07-11T05:49:42+00:00

Simplify language.

Approved by:	re (delphij)

Add MAP_GUARD and use it for stack grow area protection.

2017-07-07T06:29:18+00:00

Bump __FreeBSD_version.  This is an MFS of stable/11 r320666.

MFC r320317:
Implement address space guards.

MFC r320338:
Remove stale part of the comment.

MFC r320339:
Correctly handle small MAP_STACK requests.

MFC r320344:
For now, allow mprotect(2) over the guards to succeed regardless of
the requested protection.

MFC r320430:
Treat the addr argument for mmap(2) request without MAP_FIXED flag as
a hint.

MFC r320560 (by alc):
Modify vm_map_growstack() to protect itself from the possibility of the
gap entry in the vm map being smaller than the sysctl-derived stack guard
size.

Approved by:	re (delphij)

MFC r320314:

2017-06-27T10:09:00+00:00

Remove the description of MAP_HASSEMAPHORE.

Approved by:	re (marius)

MFC r320313:

2017-06-27T09:42:56+00:00

Fix typo.

Approved by:	re (marius)

MFC 319490: Remove stale cap_rights_get(2) manpage.

2017-06-20T15:55:15+00:00

The documentation moved to section 3 several years ago, but
'man cap_rights_get' pulls up cap_rights_limit(2) (which is
MLINKed to cap_rights_get.2) instead of cap_rights_get(3).

Approved by:	re (gjb)

MFC r320035:

2017-06-19T07:15:47+00:00

Move the description of kern.kq_calloutmax sysctl into a new paragraph
for better presentation.

Approved by:	re (delphij)

MFC r320034:

2017-06-19T06:48:21+00:00

Start a new sentence on the new line.

Approved by:	re (delphij)

MFC r318765:

2017-06-11T02:04:39+00:00

	Allow cpuset_{get,set}affinity in capabilities mode

Approved by:	re (marius)

MFC r318816:

2017-06-06T09:23:12+00:00

Don't end up manpage titles with a full stop.

Approved by:	re (marius)

MFC r319086:

2017-05-31T09:23:21+00:00

Mention that the basep argument to getdirentries(2) can be NULL.