src/include, branch upstream/11.2.0

MFC r315733, r315737, r315740, r330054:

2018-05-18T14:57:58Z

r315733 (imp): Impelemnt ttys onifexists in init. Implement a new init(8) option in /etc/ttys. If this option is present on the entry in /etc/ttys, the entry will be active if and only if it exists. If the name starts with a '/', it will be considered an absolute path. If not, it will be a path relative to /dev. This allows one to turn off video console getty that aren't present (while running a getty on them even when they aren't the system console). Likewise with serial ports. It differs from onifconsole in only requiring the device exist rather than it be listed as one of the system consoles. r315737 (ngie): Unbreak world by adding sys/stat.h for stat(2) r315740 (imp): Simplify the code a little. r330054 (trasz): Improve missing tty handling in init(8). This removes a check that did nothing - it was checking for ENXIO, which, with devfs, is no longer returned - and was badly placed anyway, and replaces it with similar one that works, and is done just before starting getty, instead of being done when rereading ttys(5). From the practical point of view, this makes init(8) handle disappearing terminals (eg /dev/ttyU*) gracefully, without unneccessary getty restarts and resulting error messages. Reported by: Bart Ender, Andre Albsmeier PR: 228315 Blocks: 11.2-BETA2 Approved by: re (marius) Sponsored by: The FreeBSD Foundation

MFC r331936, r331942, r331943, r331945, r331947, r331948

2018-04-18T19:18:14Z

Add new gets_s(3) stdio function. This implements the gets_s(3) function as documented at http://en.cppreference.com/w/c/io/gets. It facilitates the optional removal of gets(3). Reviewed by: ed Relnotes: yes Differential Revision: https://reviews.freebsd.org/D12785

MFC r331969, r332035:

2018-04-08T21:56:35Z

pthread.h: drop nullability attributes. These have been found to be practically useless. We were actually following the Android bionic library and had some interest in replicating the same warnings and behaviour but Android has since removed them. We are still keeping some uses of nullability attributes in other headers, somewhat in line with Apple's libc. Hinted by: bionic (git 3f66e74b903905e763e104396aff52a81718cfde)

MFC r329859,r329860: Float protection in stand

2018-04-06T19:17:59Z

r329859: Do not include float interfaces when using libsa. We don't support float in the boot loaders, so don't include interfaces for float or double in systems headers. In addition, take the unusual step of spiking double and float to prevent any more accidental seepage. r329860: Floaty McFloatface is funnier...

Revert r330897:

2018-03-29T02:50:57Z

This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re)

Fix buildworld after r331586 by adapting the installation of

2018-03-26T23:23:11Z

dev/mlx5/mlx5io.h to the build system in FreeBSD 11-stable. This is a direct commit. Found by: jhb@ Pointy hat: hselasky@ Sponsored by: Mellanox Technologies

MFC r330653:

2018-03-26T20:59:26Z

Add kernel and userspace code to dump the firmware state of supported ConnectX-4/5 devices in mlx5core. The dump is obtained by reading a predefined register map from the non-destructive crspace, accessible by the vendor-specific PCIe capability (VSC). The dump is stored in preallocated kernel memory and managed by the mlx5tool(8), which communicates with the driver using a character device node. The utility allows to store the dump in format

into a file, to reset the dump content, and to manually initiate the dump. A call to mlx5_fwdump() should be added at the places where a dump must be fetched automatically. The most likely place is right before a firmware reset request. Submitted by: kib@ Sponsored by: Mellanox Technologies

MFC r313818:

2018-03-19T07:00:15Z

Small inclusion guard comment fix.

Partial merge of the SPDX changes

2018-03-14T03:19:51Z

These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg

MFC r326283:

2018-03-08T06:51:17Z

netconfig.h: sync with upstream. Bring some comments and the license. Add SPDX License ID tag while here.