Add kbind, a syscall for ld.so to use to securely and efficiently update
memory for lazy binding

ok deraadt@

claim posix 2008 compat. apparently people look at this and get scared
when it's really old. but no actual ports fallout in espie's build.
ok deraadt

The last user of the old __tfork() was updated to the current one,
so COMPAT_O51 can go. The complete ABI role means COMPAT_O53 can
be removed as well.

ok jsing@ tedu@

Add support for _PC_TIMESTAMP_RESOLUTION for ffs/mfs, cd9600, ext2,
msdos, NFS, fifos and devices, plus support for querying it in
getconf(2) and the requisite pathconf(2) manpage blurb

ok tedu@

Handle the pathconf _PC_PATH_MAX, _PC_PIPE_BUF, _PC_ASYNC_IO,
_PC_PRIO_IO, and _PC_SYNC_IO names in VOP_PATHCONF(), as they're
fs-independent for us. Since we don't support latter three on any
fs, we can also define the related _POSIX_{ASYNC,PRIO,SYNC}_IO
symbols in <unistd.h> (via sys/unistd.h) with value -1.

Also, zap pointless tty-only values from procfs(!).

ok beck@, deraadt@

the 5.1 era tfork syscall claws its way out of the grave. we failed to
fully deprecate it (notably the go port was still using it as of 5.3)
so to give users a little more time to update, __tfork51 lives again.
okish deraadt guenther

No longer need the 5.1 version of the __tfork syscall

ok deraadt@

__tfork() needs to set the stack address of the new thread in the kernel,
so that it can't get a signal while still running on the parent thread's
stack. Also, pass in sizeof(struct __tfork) to provide forward compat
when more members are added. This is an ABI change, so switch syscall
numbers and bump lib majors this time.

ok deraadt@ matthew@

Add more pathconf(2) variables from POSIX.

From FreeBSD via Brad; ok millert

Move the _SC_* and _CS_* configurable system variables and strings
from sys/unistd.h to unistd.h.

From Brad; ok millert and me

More sysconf(3)-y and pathconf(3)-y goodness from Brad.
ok guenther, millert (and me); bulk build test by naddy

Add the _POSIX_MONOTONIC_CLOCK symbol and the sysconf(3)
_SC_MONOTONIC_CLOCK variable.
from Brad

No libc minor crank needed, as no API has been changed, per se (deraadt).

ports bulk testing by landry@
small man rewording from thib@
ok millert@ otto@ deraadt@

"TLS-lite": add kernel support for a per-thread userspace pointer,
for pointing to the thread-control-block. Support for mapping this
to the correct hardware register can be added as it's finished;
start with support for amd64, sparc, and sparc64. Includes syscalls
for getting and setting it (for a portable __errno implementation) as
well as creating a new thread with an initial value for it.

discussed with miod@, kettenis@, deraadt@; committing to get the syscalls
in with the impending libc bump and do further refinements in tree

support _SC_HOST_NAME_MAX; from brad
a libc crank is happening in < 24 hours

Add support to sysconf(3) for the variables _SC_NPROCESSORS_CONF and
_SC_NPROCESSORS_ONLN, implemented by AIX/Tru64/Solaris/Linux/SCO/FreeBSD/NetBSD.
Bump libc minor.

From Brad, ok deraadt@ guenther@

(File missing from previous commit, pointed out by johan@ - thanks!)

set _POSIX_JOB_CONTROL and _POSIX_SAVED_IDS to the correct values; ok millert

Implement _SC_GETGR_R_SIZE_MAX, _SC_GETPW_R_SIZE_MAX, _SC_LOGIN_NAME_MAX,
and _SC_THREAD_SAFE_FUNCTIONS for sysconf(3). OK deraadt@

Add the semi-standard _SC_PHYS_PAGES and _SC_AVPHYS_PAGES, sysconf(3) variable.

ok espie@

First step in include files overhaul. Use __FOO_VISIBLE (as defined
in sys/cdefs.h) instead of _FOO_SOURCE. Also fix several namespace
pollution issues, including the byte order defines. OK deraadt@

Implement _SC_SEM_NSEMS_MAX and _SC_SEM_VALUE_MAX.
Based on a diff from Jean-G�rard Pailloncy.

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

spelling; from Brian Poole <raj@cerias.purdue.edu>

branches: 1.9.4;
comment out some unimplemented placeholders; millert@ agrees

branches: 1.8.6;
Add thread-safety to libc, so that libc_r will build (on i386 at least).
All POSIX libc api now there (to P1003.1c/D10)
(more md stuff is needed for other libc/arch/*)
(setlogin is no longer a special syscall)
Add -pthread option to gcc (that makes it use -lc_r and -D_POSIX_THREADS).
Doc some re-entrant routines
Add libc_r to intro(3)
dig() uses some libc srcs and an extra -I was needed there.
Add more md stuff to libc_r.
Update includes for the pthreads api
Update libc_r TODO

clarify a comment

add sysctl and sysconf support for sysvsem, sysvshm, sysvmsg, and fsync; mostly from kleink

Define _POSIX_VDISABLE as (0377), not '\377'

Don't use a cast for _POSIX_VDISABLE
Update _POSIX_VERSION to 199009

Implemented _POSIX_SAVED_IDS behaviour according to 1003.1-1990, with
allowed extension from Appendix B, section 4.2.2.

From NetBSD: 960217 merge

branches: 1.1.1;
Initial revision