Add pathconfat(2): pathconf(2) but with at-fd and flags arguments,
the latter supporting the ability to get timestamp resolution of
symlinks.

ok deraadt@ millert@

Add scandirat(3); from freebsd

To be used in httpd(8) shortly to prevent toctu issues.

This makes __fdopendir internally accessible to avoid unnecessary
syscalls in scandirat(3). Suggested & diff b

Add scandirat(3); from freebsd

To be used in httpd(8) shortly to prevent toctu issues.

This makes __fdopendir internally accessible to avoid unnecessary
syscalls in scandirat(3). Suggested & diff by guenther

suggested by & OK millert
tweak & OK guenther
OK tb, jca

This rides the libc crank.

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Add mkdtemps(3), like mkdtemp(3) but with a suffix.
OK deraadt@ tb@

remove support for syscall(2) -- the "indirection system call" because
it is a dangerous alternative entry point for all system calls, and thus
incompatible with the precision system call entry point

remove support for syscall(2) -- the "indirection system call" because
it is a dangerous alternative entry point for all system calls, and thus
incompatible with the precision system call entry point scheme we are
heading towards. This has been a 3-year mission:
First perl needed a code-generated wrapper to fake syscall(2) as a giant
switch table, then all the ports were cleaned with relatively minor fixes,
except for "go". "go" required two fixes -- 1) a framework issue with
old library versions, and 2) like perl, a fake syscall(2) wrapper to
handle ioctl(2) and sysctl(2) because "syscall(SYS_ioctl" occurs all over
the place in the "go" ecosystem because the "go developers" are plan9-loving
unix-hating folk who tried to build an ecosystem without allowing "ioctl".
ok kettenis, jsing, afresh1, sthen

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Add syscall stub for kqueue1(2)

This rides previous libc minor bump.

Feedback and OK guenther@

Provide C11 <uchar.h>.
OK millert@.
Tested by naddy@ in a bulk and by matthieu@ in the new foot(1) port.
I originally wrote the code in 2022 at the prodding of espie@.
Using one improvement to a manu

Provide C11 <uchar.h>.
OK millert@.
Tested by naddy@ in a bulk and by matthieu@ in the new foot(1) port.
I originally wrote the code in 2022 at the prodding of espie@.
Using one improvement to a manual page from jmc@.

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__syscall() is no longer neccessary since the system calls which needed
it are now unpadded
ok kettenis guenther

Add {get,set}thrname(2) for putting thread names in the kernel and
exposed in a new field returned by sysctl(KERN_PROC). Update
pthread_{get,set}_name_np(3) to use the syscalls. Show them, when
set

Add {get,set}thrname(2) for putting thread names in the kernel and
exposed in a new field returned by sysctl(KERN_PROC). Update
pthread_{get,set}_name_np(3) to use the syscalls. Show them, when
set, in ps -H and top -H output.

libc and libpthread minor bumps

ok mpi@, mvs@, deraadt@

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spelling fixes; from paul tagliamonte
any changes not taken noted on tech, but chiefly here i did not take the
cancelation - cancellation changes;

Add waitid(2) syscall stub.

Minor bump to both libc and libpthread: make sure you install a new kernel!

ok millert@, deraadt@

Add mimmutable(2) libc stub, add & adjust manual pages, and crank the minor.
ok kettenis

Add libc wrappers for the new sendmmsg and recvmmsg system calls.
Feedback tb@, miod@, jca@
OK jca@

delete incorrect comment: yp_unbind is not called by passwd

secure_path(3) hasn't been called since we recognized the TOCTOU issues a few
years back, so we can remove it. Since nothing in the ecosystem calls it, I
am not cranking the libc major as required,

secure_path(3) hasn't been called since we recognized the TOCTOU issues a few
years back, so we can remove it. Since nothing in the ecosystem calls it, I
am not cranking the libc major as required, surely another crank will come
along soon.
noticed by Dante Catalfamo
ok millert

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Allow the caller of asr functions to create and use a specific context.
Diff from eric@ and florian@, commiting on their behalf since they are absent
and we want to ride the minor shlib bump.

_thread_sys___realpath must be exported like _thread_sys___getcwd obviously.
None will all it, but this is the mechanism by which ramdisk build
determines which .o files to build for it's libraries.

Inroduce malloc_conceal() and calloc_conceal(). Similar to their
counterparts but return memory in pages marked MAP_CONCEAL and on
free() freezero() is actually called.

Move sigwait(3) from libpthread to libc

POSIX wants it in libc, that's where the function can be found on other
systems. Reported by naddy@, input from naddy@ and guenther@.
"looks ok" guenther@, o

Move sigwait(3) from libpthread to libc

POSIX wants it in libc, that's where the function can be found on other
systems. Reported by naddy@, input from naddy@ and guenther@.
"looks ok" guenther@, ok deraadt@

Note: riding the libc/libpthread major cranks earlier today.

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mincore() is a relic from the past, exposing physical machine information
about shared resources which no program should see. only a few pieces of
software use it, generally poorly thought out. the

mincore() is a relic from the past, exposing physical machine information
about shared resources which no program should see. only a few pieces of
software use it, generally poorly thought out. they are being fixed, so
mincore() can be deleted.
ok guenther tedu jca sthen, others

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Introducing malloc_usable_size() was a mistake. While some other
libs have it, it is a function that is considered harmful, so:

Delete malloc_usable_size(). It is a function that blurs the line
betw

Introducing malloc_usable_size() was a mistake. While some other
libs have it, it is a function that is considered harmful, so:

Delete malloc_usable_size(). It is a function that blurs the line
between malloc managed memory and application managed memory and
exposes some of the internal workings of malloc. If an application
relies on that, it is likely to break using another implementation
of malloc. If you want usable size x, just allocate x bytes. ok
deraadt@ and other devs

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Implement malloc_usable_size(); ok millert@ deraadt@ and jmc@ for the man page

Implement C11's aligned_alloc(3). ok guenther@

Add C11's timespec_get(3); minor bump for libc.

Tweaked diff from brad@
manpage tweaks florian@ and jmc@
ok deraadt@ millert@

Add uid_from_user() and gid_from_group(), derived from pax's cache.c.
It replaces the existing pwcache.c functions user_from_uid(3) and
group_from_gid(3) with the pax equivalents. Adapted from NetBS

Add uid_from_user() and gid_from_group(), derived from pax's cache.c.
It replaces the existing pwcache.c functions user_from_uid(3) and
group_from_gid(3) with the pax equivalents. Adapted from NetBSD
(mycroft) changes from our own pax's cache.c. OK guenther@

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Unveiling unveil(2).
This brings unveil into the tree, disabled by default - Currently
this will return EPERM on all attempts to use it until we are
fully certain it is ready for people to start usin

Unveiling unveil(2).
This brings unveil into the tree, disabled by default - Currently
this will return EPERM on all attempts to use it until we are
fully certain it is ready for people to start using, but this
now allows for others to do more tweaking and experimentation.

Still needs to send the unveil's across forks and execs before
fully enabling.

Many thanks to robert@ and deraadt@ for extensive testing.
ok deraadt@

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