Implement CLOCK_TAI

Provide a clock through clock_gettime() that returns the current TAI
time (UTC without leap seconds) as a complement to CLOCK_REALTIME. This
provides compatibility with Linux, wh

Implement CLOCK_TAI

Provide a clock through clock_gettime() that returns the current TAI
time (UTC without leap seconds) as a complement to CLOCK_REALTIME. This
provides compatibility with Linux, which also provides a CLOCK_TAI since
kernel 2.6.26, and this seems to be becoming the standard way to acquire
TAI time. Unlike Linux, this code will return EINVAL if the TAI offset
(set by ntpd, ptpd, etc.) is not known since it seems pathological for
CLOCK_TAI to silently give the wrong (UTC) time if the offset is not
known as it does on Linux.

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D46268

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Canonicalize the name of the FreeBSD Foundation

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation

libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths

libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths to allow libc to find them in their new home.

Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908

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_umtx_op.2: Fix a typo in the manual page

- s/interpeted/interpreted/

MFC after: 3 days

Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

umtx: allow to configure minimal timeout (in nanoseconds)

PR: 270785
Reviewed by: markj, mav
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org

umtx: allow to configure minimal timeout (in nanoseconds)

PR: 270785
Reviewed by: markj, mav
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D39584

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Remove "All Rights Reserved" from FreeBSD Foundation libc copyrights

As per the updated FreeBSD copyright template. These were unambiguous
cases where the Foundation was the only listed copyright h

Remove "All Rights Reserved" from FreeBSD Foundation libc copyrights

As per the updated FreeBSD copyright template. These were unambiguous
cases where the Foundation was the only listed copyright holder.

Sponsored by: The FreeBSD Foundation

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libc: Fix most issues reported by mandoc

- varios "new sentence, new line" warnings
- varios "sections out of conventional order" warnings
- varios "unusual Xr order" warnings
- varios "missing sect

libc: Fix most issues reported by mandoc

- varios "new sentence, new line" warnings
- varios "sections out of conventional order" warnings
- varios "unusual Xr order" warnings
- varios "missing section argument" warnings
- varios "no blank before trailing delimiter" warnings
- varios "normalizing date format" warnings

MFC after: 1 month

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_umtx_op(2): document recent addition of 32bit compat flags

This was part of D27325.

Reviewed by: kib

_umtx_op: document UMTX_OP_SEM2_WAIT copyout behavior

This clever technique to get a time remaining back was added to support sem_clockwait_np.

Reviewed by: kib, vangyzen
MFC after: 1 week
Differen

_umtx_op: document UMTX_OP_SEM2_WAIT copyout behavior

This clever technique to get a time remaining back was added to support sem_clockwait_np.

Reviewed by: kib, vangyzen
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27160

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umtx_op.2: correct typo

PR: 244611
Submitted by: John F. Carr <jfc@mit.edu>
MFC after: 3 days

Fix formatting of _umtx_op(2)

Do not use macros in the -width of a .Bl, since mandoc does not support them.

Fix issues reported by igor and mandoc -Tlint.

Use a .Bl for list of clock IDs instead o

Fix formatting of _umtx_op(2)

Do not use macros in the -width of a .Bl, since mandoc does not support them.

Fix issues reported by igor and mandoc -Tlint.

Use a .Bl for list of clock IDs instead of a comma list.

MFC after: 3 days
Sponsored by: Dell EMC

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_umtx_op(2): fix minor manlint issues

- Sort .Xr entries in SEE ALSO section.
- Sort SEE ALSO and STANDARDS sections properly, in terms of the
entire document.

Reported by: make manlint
MFC after

_umtx_op(2): fix minor manlint issues

- Sort .Xr entries in SEE ALSO section.
- Sort SEE ALSO and STANDARDS sections properly, in terms of the
entire document.

Reported by: make manlint
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon

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Fix markup.

Sponsored by: The FreeBSD Foundation

_umtx_op(2): Note deprecation of UMTX_OP_MUTEX_WAKE.

_umtx_op(2),thr_*(2): Various spelling, grammar and mdoc fixes.

Document _umtx_op(2) interface for the implementation of robust mutexes.
In libthr(3), list added knobs.

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential revision: https://revie

Document _umtx_op(2) interface for the implementation of robust mutexes.
In libthr(3), list added knobs.

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D6427

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Document the non-obsoleted kernel interfaces used by libthr.

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D6335