r363066 kevans July 10, 2020, 12:45 a.m.
memfd_create fds will no longer require an ftruncate(2) to set the size;
they'll grow (to the extent that it's possible) upon write(2)-like syscalls.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D25502
r363065 kevans July 10, 2020, 12:43 a.m.
Lack of SHM_GROW_ON_WRITE is actively breaking Python's memfd_create tests,
so go ahead and implement it. A future change will make memfd_create always
set SHM_GROW_ON_WRITE, to match Linux behavior and unbreak Python's tests

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D25502
r363064 eugen July 10, 2020, 12:24 a.m.
Currently, "install -s -S" behaviour is inefficient for upgrade.
First it finds that destination file already exists and copies
source file to temporary file. Then it calls strip(1)
with name of temporary file as single agrument and our strip(1) creates
another temporary file in the /tmp (or TMPDIR) making another copy
that is finally copied to DESTDIR third time.

Meantime, strip(1) has an option "-o dst" to specify destination
so install(1) is allowed to skip initial copying from obj to DESTDIR.
This change makes it do so.

Take a look at https://reviews.freebsd.org/D25551 for details
and efficiency numbers (in short: upto 32% gained for installword).

MFC after:		1 month
Differential Revision:	https://reviews.freebsd.org/D25551
r363063 imp July 10, 2020, 12:24 a.m.
Correct a small mistake in r363060's backaout of r362998 by reverse-applying
r362998 by hand to loader.conf.

Differential Revision: https://reviews.freebsd.org/D25606
r363062 kevans July 10, 2020, 12:03 a.m.
On 32-bit platforms, this expands the shm_size to a 64-bit quantity and
resolves a mismatch between the shmfd size and underlying vm_object size.
The implementation did not account for this kind of mismatch.

Reviewed by:	kib
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25602
r363061 cy July 9, 2020, 11:01 p.m.
hostapd and wpa_supplicant.

Submitted by:	bz
MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	Rubicon Communications, LLC (d/b/a "Netgate")
r363060 scottl July 9, 2020, 10:38 p.m.
r363057 jilles July 9, 2020, 8:53 p.m.
INTOFF postpones SIGINT processing and INTON enables it again. This is
important so an interactive shell can return to the top level prompt when
Ctrl+C is pressed.

Given that INTON is automatically done when a builtin completes, the part
where onsig() ignores suppressint when in_dotrap is true is both unnecessary
and unsafe. If the trap is for some other signal than SIGINT, arbitrary code
could have been interrupted.

Historically, INTOFF remained in effect for longer.

Reviewed by:	bdrewery
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D25270
r363055 markj July 9, 2020, 6:34 p.m.
Reported by:	Jeffball <jeffball@grimm-co.com>
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25600
r363052 markj July 9, 2020, 5:27 p.m.
PR:		243862
Submitted by:	ben@desync.com
Differential Revision:	https://reviews.freebsd.org/D25156
r363051 markj July 9, 2020, 5:26 p.m.
While this behaviour is harmless, it is really just an artifact of the
fact that the msgctl(2) implementation uses a user-visible structure as
part of the internal implementation, so it is not deliberate and these
pointers are not useful to userspace.  Thus, NULL them out before
copying out, and remove references to them from the manual page.

Reported by:	Jeffball <jeffball@grimm-co.com>
Reviewed by:	emaste, kib
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25600
r363047 andrew July 9, 2020, 4:28 p.m.
Communicating with the Raspberry Pi firmware is currently handled by each
driver calling into the mbox driver, however the device tree is structured
such that they should be calling into a firmware driver.

Add a driver for this node with an interface to communicate to the firmware
via the mbox interface.

There is a sysctl to get the firmware revision. This is a unix date so can
be parsed with:

root@generic:~ # date -j -f '%s' sysctl -n dev.bcm2835_firmware.0.revision
Tue Nov 19 16:40:28 UTC 2019

Reviewed by:	manu
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D25572
r363046 tuexen July 9, 2020, 4:18 p.m.
This addresses an issue found and reported for the userland stack in

MFC after:		1 week
r363042 tsoome July 9, 2020, 1:19 p.m.
Because we need to read asize from vdev_tree. We also need to consider
different vdev type difference.

Reviewed by:	allanjude
Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25586
r363036 delphij July 9, 2020, 8 a.m.

Reviewed by:	cem
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D25596