libc: Sync namespace.h and un-namespace.h a bit more pedantically.

libc - Add mkdirat() to the namespace

* Add mkdirat() / _mkdirat() to the namespace (will be used by
gen/posixshm.c).

libpthread: Implement pthread_getname_np() and pthread_setname_np().

Varieties of pthread_get_name_np() and pthread_set_name_np() that return
an integer (0 or error number).

These are only used for

libpthread: Implement pthread_getname_np() and pthread_setname_np().

Varieties of pthread_get_name_np() and pthread_set_name_np() that return
an integer (0 or error number).

These are only used for debugging but it looks like some ports want them.

I took some of the documentation from FreeBSD.

Reported-by: zrj

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Implement clock_nanosleep(2) system call

* Extend the nanosleep1() function in kern_time.c to support the
clock_nanosleep(2) system call. Add {kern,sys}_clock_nanosleep()
functions and update k

Implement clock_nanosleep(2) system call

* Extend the nanosleep1() function in kern_time.c to support the
clock_nanosleep(2) system call. Add {kern,sys}_clock_nanosleep()
functions and update kern_nanosleep() accordingly.

* Add clock_nanosleep() syscall to syscalls.master and regenerate
syscall-related files.

* Update libc symbols with the new syscall.

* Add clock_nanosleep() warpper in libthread_xu.

* Update nanosleep.2 man page to describe clock_nanosleep().

* Update <time.h> and bump __DragonFly_version.

This work is loosely based on the FreeBSD implementation:
https://reviews.freebsd.org/rS315526

This clock_nanosleep(2) syscall passed all tests in the Open POSIX Test
Suite [0]:

conformance/interfaces/clock_nanosleep/1-1: execution: PASS
conformance/interfaces/clock_nanosleep/1-2: execution: PASS
conformance/interfaces/clock_nanosleep/1-3: execution: PASS
conformance/interfaces/clock_nanosleep/1-4: execution: PASS
conformance/interfaces/clock_nanosleep/1-5: execution: PASS
conformance/interfaces/clock_nanosleep/2-1: execution: PASS
conformance/interfaces/clock_nanosleep/2-2: execution: PASS
conformance/interfaces/clock_nanosleep/2-3: execution: PASS
conformance/interfaces/clock_nanosleep/3-1: execution: PASS
conformance/interfaces/clock_nanosleep/4-1: execution: PASS
conformance/interfaces/clock_nanosleep/5-1: execution: PASS
conformance/interfaces/clock_nanosleep/6-1: execution: PASS
conformance/interfaces/clock_nanosleep/9-1: execution: PASS
conformance/interfaces/clock_nanosleep/8-1: execution: PASS
conformance/interfaces/clock_nanosleep/10-1: execution: PASS
conformance/interfaces/clock_nanosleep/11-1: execution: PASS
conformance/interfaces/clock_nanosleep/13-1: execution: PASS
conformance/interfaces/clock_nanosleep/15-1: execution: PASS

[0] Open POSIX Test Suite: http://posixtest.sourceforge.net/

Reviewed-by: swildner, dillon, tuxillo, zach

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pthreads: Add pthread_yield_np().

Same as non standard pthread_yield() but with correct '_np' suffix.

pthreads: Add pthread_is_threaded_np() function.

pthreads: Add pthread_getattr_np().

Adapted-from: NetBSD

world - Add support for lwp_getname() and pthread_get_name_np()

* Add support for the new system call lwp_getname()

* Add support for pthread_get_name_np(), rounding out that function
set and imp

world - Add support for lwp_getname() and pthread_get_name_np()

* Add support for the new system call lwp_getname()

* Add support for pthread_get_name_np(), rounding out that function
set and improving ports compatibility.

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world - Makme shm_open() more compatible with expectations

* Create a tmpfs mount in /var/run/shm and also create /var/run/shm/tmp
under it, both modes 1777, to support shm_open(). No longer base

world - Makme shm_open() more compatible with expectations

* Create a tmpfs mount in /var/run/shm and also create /var/run/shm/tmp
under it, both modes 1777, to support shm_open(). No longer base
shm_open() at the root directory.

* shm_open() and shm_unlink() now access files relative to /var/run/shm.

This fixes numerous ports and removes the need for numerous
port patches.

* Rejigger libraries using namespace.h/un-namespace.h to add _unlink() and
_unlinkat() into the mix.

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system - Add wait6(), waitid(), and si_pid/si_uid siginfo support

* Add the wait6() system call (header definitions taken from FreeBSD).
This required rearranging kern_wait() a bit. In particular

system - Add wait6(), waitid(), and si_pid/si_uid siginfo support

* Add the wait6() system call (header definitions taken from FreeBSD).
This required rearranging kern_wait() a bit. In particular, we now
maintain a hold count of 1 on the process during processing instead
of releasing the hold count early.

* Add waitid() to libc (waitid.c taken from FreeBSD).

* Adjust manual pages (taken from FreeBSD).

* Add siginfo si_pid and si_uid support. This basically allows a process
taking a signal to determine where the signal came from. The fields
already existed in siginfo but were not implemented.

Implemented using a non-queued per-process array of signal numbers.
The last originator sending any given signal is recorded and passed
through to userland in the siginfo.

* Fixes the 'lightdm' X display manager. lightdm relies on si_pid
support. In addition, note that avoiding long lightdm related
latencies and timeouts require a softlink from libmozjs-52.so to
libmozjs-52.so.0 (must be addressed in dports, not addressed in this
commit).

Loosely-taken-from: FreeBSD (wait6, waitid support only)
Reviewed-by: swildner

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libc/libpthread: Add clock_getcpuclockid() and pthread_getcpuclockid().

* Adjust clock_gettime() and clock_getres() to accept values obtained
this way.

* Also set _POSIX_CPUTIME and _POSIX_THREAD

libc/libpthread: Add clock_getcpuclockid() and pthread_getcpuclockid().

* Adjust clock_gettime() and clock_getres() to accept values obtained
this way.

* Also set _POSIX_CPUTIME and _POSIX_THREAD_CPUTIME, although we should
really support values obtained by these functions in clock_settime()
too.

Based on and taken from FreeBSD's code.

Reviewed-by: sephe

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pthread: Add pthread_getthreadid_np() function, bump __DragonFly_version.

Using pthread_getthreadid_np() can directly use the thread-ID value that is
already cached in the pthread_t struct.

Partly

pthread: Add pthread_getthreadid_np() function, bump __DragonFly_version.

Using pthread_getthreadid_np() can directly use the thread-ID value that is
already cached in the pthread_t struct.

Partly Taken-From: FreeBSD

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pthread: Implement pthread_attr_{get,set}affinity_np

pthread: Implement pthread_{set,get}affinity_np

kernel - Implement ppoll system call with precise microseconds timeout.

* Implement a maximum timeout of 2000s, because systimer(9) just accepts an
int timeout in microseconds.

* Add kern.kv_slee

kernel - Implement ppoll system call with precise microseconds timeout.

* Implement a maximum timeout of 2000s, because systimer(9) just accepts an
int timeout in microseconds.

* Add kern.kv_sleep_threshold sysctl variable for tuning the threshold for
the ppoll sleep duration (in nanoseconds), below which we will
busy-loop with DELAY instead of using tsleep for waiting.

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Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

Add nsswitch support.

The nsswitch.conf(5) manual page has a description of nsswitch.
Curiously, we already had this manual page, even though we didn't
support it.

/etc/host.conf is removed from sr

Add nsswitch support.

The nsswitch.conf(5) manual page has a description of nsswitch.
Curiously, we already had this manual page, even though we didn't
support it.

/etc/host.conf is removed from src/, but if host.conf exists and
nsswitch.conf does not, nsswitch.conf will be created using its
contents.

Included in this commit is a framework for nsswitch caching, nscd(8),
but it relies on a few upcoming changes to our libc before it will work.
For now, it's turned off.

Also this commit includes hesiod support which is not compiled by
default. Add WANT_HESIOD=true to make.conf to get it working.

Obtained-from: FreeBSD

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Bring in a transport-independent RPC (TI-RPC).

-rpcbind replaces portmap which is more secure.
-Essentially this is the same thing FreeBSD did over 7 years ago (svn
revision #74462).
-This also upda

Bring in a transport-independent RPC (TI-RPC).

-rpcbind replaces portmap which is more secure.
-Essentially this is the same thing FreeBSD did over 7 years ago (svn
revision #74462).
-This also updates utilities and the kernel build associated with this
change.

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Add all pthread functions into libc namespace.

Remove _THREAD_SAFE depenendancies. Create weakly associated stubs for
posix threading calls used by libc and weak associations for procedures that
a threading library would otherwise have to overri

Remove _THREAD_SAFE depenendancies. Create weakly associated stubs for
posix threading calls used by libc and weak associations for procedures that
a threading library would otherwise have to override. This allows a program
to be linked with libc, or linked with libc + a threading library. libc_r
will be deprecated over time.

Traditionally libc_r had to be linked against a threading library rather then
libc. Linux, FreeBSD, and other UNIXes have moved either t oa thread-safe
libc or a thread-capable libc. The threading capability is accomplished by
making the appropriate thread locking calls and providing weakly referenced
dummy stub functions for the case where a threading library is not linked in.
Certain third party software, namely XFree/XOrg, also assume threading
stubs in libc.

This is precursor work to a port of David Xu's 1:1 threading library and is
also intended as a basis to allow DragonFly to support multiple threading
libraries.

Ported-by: David Rhodus <sdrhodus@gmail.com>
Primarily-ported-from: FreeBSD
Testing and bug fixes by David Xu and Matt Dillon

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libc: Fix warnings fallout from the change to CSTD=gnu99.

Sync libc's un-namespace.h with namespace.h.