Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r241855:
Update the kill(2) and killpg(2) man pages to the modern permission
checks. Also indicate killpg(2) is POSIX compliant.

Approved by: cperciva (implicit)

MFC r235140:

General mdoc(7) and typo fixes.

PR: 167713

MFC r233002, r233003 and r233012:

Remove impossible error condition from the man page.

On FreeBSD, all processes have a process group, so it is impossible for
kill(2) to fail this way. POSIX also doesn't mention this error
condition.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Powerpc is special here. powerpc and powerpc64 use different ABIs, so
their implementations aren't in the same files. Introduce LIBC_ARCH
and use that in preference to MACHINE_CPUARCH. Tested by amd64 and
powerpc64 builds (thanks nathanw@)

MFtbemd:

Prefer MACHNE_CPUARCH to MACHINE_ARCH in most contexts where you want
to test of all the CPUs of a given family conform.

Verify return value of the sigset manipulation functions
to catch invalid signal numbers [1]. Use consistent style of
not assigning the return value to a local variable.

Reported by: Garrett Cooper <yanegomi gmail com> [1]
MFC after: 1 week

For xsi_sigpause(3), remove the supplied signal from the process mask
during sigpause(2) call. It was backward.
Check that the signal number is valid.

Reported by: Garrett Cooper <yanegomi gmail com>
MFC after: 1 week

These features will first appear in 8.1, soon to be released

MFC after: 3 days

Fix several typos in macros or macro misusage.

Found by: make manlint
Reviewed by: ru
Approved by: philip (mentor)

Implement sighold, sigignore, sigpause, sigrelse, sigset functions
from SUSv4 XSI. Note that the functions are obsoleted, and only
provided to ease porting from System V-like systems. Since sigpause
already exists in compat with different interface, XSI sigpause is
named xsi_sigpause.

Reviewed by: davidxu
MFC after: 3 weeks

Use C comments since we now preprocess these files with CPP.

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

o From kern_prot.c::p_cansignal():

UNIX signalling semantics require that processes in the same
session always be able to deliver SIGCONT to one another,
overriding the remaining protections.

Fix SIGCONT special case description similar to rev. 1.22 kill.2.

PR: docs/58710
Submitted by: Ryan Younce
MFC after: 2 weeks

Add each directory's symbol map file to SYM_MAPS.

Add symbol maps and initial symbol version definitions to libc.

Reviewed by: davidxu

Include a couple of headers to ensure consistency between the prototype and
the function definition.

The header and the man page say that sethostid() returns void, so make the
definition match. Include <unistd.h>.

Revert accidiental removal of string.h inclusion.

Replace usage of strerror()/strcpy() with strerror_r() here, reducing
number of required operations to get error message and avoiding of strerror's
buffer clobbering.

Also ANSI'fy prototypes while I'm here

Sort sections.

Mechanically kill hard sentence breaks.

mdoc(7): Use the new feature of the .In macro.

Explain the relationship to POSIX.

The .Fn function

mdoc(7) police: "The .Fa argument.".

mdoc(7) police: "The .Fn function".

libc_r wasn't so tied to libc for 22 months.

Assume __STDC__, remove non-__STDC__ code.

Submitted by: keramida

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

mdoc(7) police: Use the new .In macro for #include statements.

Use ``.Rv -std'' wherever possible.

Submitted by: yar

Removed duplicate VCS ID tags, as per style(9).

Use the ``.Rv -std'' mdoc(7) macro in appropriate cases.

Reviewed by: ru

mdoc(7) police: expand plain text xrefs.

Remove whitespace at EOL.

mdoc(7) police: removed HISTORY info from the .Os call.

MAN[1-9] -> MAN.

Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions. If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
__sys_foo - actual system call
_foo - weak definition to __sys_foo
foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo. In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde). All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes. <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE. We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by: -arch

Merge the documentation for sigsetmask() and sigblock() into a
single manual page, appropriately linked, since this removes the
decision of which page the (previously non-existent) sigmask.2
MLINK should point at.

Submitted by: will

Prepare for mdoc(7)NG.

mdoc(7) police: Er macro usage cleanup.

mdoc(7) police: use certified section headers wherever possible.

Remove fullstops from the end of .Xr lines in SEE ALSO section.

Use `Er' variable to define first column width in ERRORS section.

Introduce ".Lb" macro to libc manpages.

More libraries manpages updates following.

Take care to avoid having "strong" and "weak" symbols of the same name in
libc_r.

Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),
just use _foo() <-- foo(). In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate. In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().

Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().

Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().

Make thread cancellation fully POSIX-compliant.

Suggested by: deischen

Add three-tier symbol naming in support of POSIX thread cancellation
points. For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep(). The arrows represent weak aliases. For
system calls, the pattern is _read() <-- _libc_read() <-- read().

Typo cops.

Fix sigvec(). When the sigset_t changes came in, it was altered
to call osigaction(). But that's wrong because it causes the
handler to receive a struct osigcontext instead of the expected
struct sigcontext. Use sigaction() instead, copying the compatible
portion of the signal mask.

Reviewed by: marcel

o Add $FreeBSD$ as a rcsid instead of in a comment.
o Fix formatting
o Return the error if sigprocmask fails instead of undefined data.

Submitted by: bde

sigset_t change (part 5 of 5)
-----------------------------

Most of the userland changes are in libc. For both the alpha
and the i386 setjmp has been changed to accomodate for the
new sigset_t. Internally, libc is mostly rewritten to use the
new syscalls. The exception is in compat-43/sigcompat.c

The POSIX thread library has also been rewritten to use the
new sigset_t. Except, that it currently only handles NSIG
signals instead of the maximum _SIG_MAXSIG. This should not
be a problem because current applications don't use any
signals higher than NSIG.

There are version bumps for the following libraries:
libdialog
libreadline
libc
libc_r
libedit
libftpio
libss

These libraries either a) have one of the modified structures
visible in the interface, or b) use sigset_t internally and
may cause breakage if new binaries are used against libraries
that don't have the sigset_t change. This not an immediate
issue, but will be as soon as applications start using the
new range to its fullest.

NOTE: libncurses already had an version bump and has not been
given one now.

NOTE: doscmd is a real casualty and has been disconnected for
the moment. Reconnection will eventually happen after
doscmd has been fixed. I'm aware that being the last one
to touch it, I'm automaticly promoted to being maintainer.
According to good taste this means that I will receive a
badge which either will be glued or mechanically stapled,
drilled or otherwise violently forced onto me :-)

NOTE: pcvt/vttest cannot be compiled with -traditional. The
change cause sys/types to be included along the way which
contains the const and volatile modifiers. I don't consider
this a solution, but more a workaround.

$Id$ -> $FreeBSD$

Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

.\" $Id$
.\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by: bde

Add missing period. We don't allow maternity leaves.

Don't imply sigset_t == int.

MACHINE -> MACHINE_ARCH

Sorted lists.

Removed the subdirectory paths from the definitions of MAN[1-9]. They
were a workaround for limitations in bsd.man.mk that were fixed about
2 years ago.

kill the undead

This commit was generated by cvs2svn to compensate for changes in r27180,
which included commits to RCS files with non-trunk default branches.

Changed all paths to be relative to src/lib instead of src/lib/libc
so that all these makefiles can be used to build libc_r too.

Added .if ${LIB} == "c" tests to restrict man page builds to libc
to avoid needlessly building them with libc_r too.

Split libc Makefile into Makefile and Makefile.inc to allow the
libc_r Makefile to include Makefile.inc too.

Fixed wrong/incomplete #includes in synopsis.

Fixed wrong function return type in synopsis.

Fixed missing header in synopsis.

Fixed synopsis (prototype was missing a const).

Fixed missing function types in synopsis.

Sort cross references.

fix .Xr macro

Correctly use .Fn instead of .Nm to reference function names
in a bunch of man pages.

Use the correct .Bx (BSD UNIX) or .At (AT&T UNIX) macros
instead of explicitly specifying the version in the text
in a bunch of man pages.

Update a bunch of man pages to use .Fn instead
of .Nm when referencing funciton names.

General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>

Added missing section numbers to a bunch of .Xr macros, or
converted them into .Fn macros where appropriate. Also fixed
up some minor formatting problems.

Fixed a bunch of man page cross references that were
in the main text of various man pages.

Thanks to Warner Losh for adding an option to manck to allow
it to scan the entire man page looking for bogus xrefs, instead
of just checking the SEE ALSO section.

Correct a bunch of man page cross references and generally
try and silence "manck".

ncurses, rpc, and some of the gnu stuff are still a big mess, however.

Changed the description of SIGSYS to better reflect what
it means when that signal is received. Closes PR# 686.

This commit was generated by cvs2svn to compensate for changes in r13122,
which included commits to RCS files with non-trunk default branches.

Remove setre*id*.

gethostid.2 is now gethostid.3. Instal the correct one.

First crack at making libc work with the new make macros. It compiles on
my machine, and a simple static (genassym) and shared (sysctl) executable
both work. Still to be done: RPCand YP merge.

This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.