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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lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line nroff pattern

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

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Use NULL instead of 0 for pointer in example.

MFC after: 3 days

sigaltstack(2): document some modernizations:
* un-document 'struct sigaltstack' tag for stack_t as this is BSD-specific;
this doesn't seem useful enough to document as such
* alternate stacks are

sigaltstack(2): document some modernizations:
* un-document 'struct sigaltstack' tag for stack_t as this is BSD-specific;
this doesn't seem useful enough to document as such
* alternate stacks are per thread, not per process
* update error codes to what the kernel does and POSIX requires

MFC after: 1 week

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

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

mdoc(7) police: Tidy up the syscall language.

Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTOR

mdoc(7) police: Tidy up the syscall language.

Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTORY section, call syscall a function,
to be safe.

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Add the 'restrict' type qualifier to the prototypes of `sigaction',
`sigprocmask', `sigaltstack', and `sigwait' as well as to the
prototypes of the apparantly unimplemented functions `sigtimedwait'
a

Add the 'restrict' type qualifier to the prototypes of `sigaction',
`sigprocmask', `sigaltstack', and `sigwait' as well as to the
prototypes of the apparantly unimplemented functions `sigtimedwait'
and `sigwaitinfo'. This complies with IEEE Std 1003.1-2001.

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Adjust to reflect reality, which is that sigaltstack() takes stack_t *'s.

MFC after: 3 days

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

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

Reviewed by: ru

Remove whitespace at EOL.

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

mdoc(7) police: Er macro usage cleanup.

Use `Er' variable to define first column width in ERRORS section. It was
initially suggested by mdoc(7) style, but was broken over the years

Introduce ".Lb" macro to libc manpages.

More libraries manpages updates following.

$Id$ -> $FreeBSD$

Typo.

PR: docs/11832
Submitted by: Ralf S. Engelschall <rse@engelschall.com>

Updated type of ss_size in struct sigaltstack.

Removed bogus prerequisite <sys/types.h>.

Make this man page really match the current <sys/signal.h> again and
the 2.x <sys/signal.h> for the first time :-). The type of ss_sp
was lexically different.

Make this man page match the current <sys/signal.h> again :-).

Bruce says that since NetBSD, OpenBSD and Linux currently
use ss_sp, we won't be changing it to the lite2 ss_base.
The type may change

Make this man page match the current <sys/signal.h> again :-).

Bruce says that since NetBSD, OpenBSD and Linux currently
use ss_sp, we won't be changing it to the lite2 ss_base.
The type may change at some later date.

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Update the structure to match how things are going to appear after
bde commits some changes later tonight.

Cleanup some of the Lite2 merge. Most of it is mdoc cleanup,
but in one case the Lite2 changes were flat out wrong and
caused the man page to disagree with a header file.

There are still some *roff

Cleanup some of the Lite2 merge. Most of it is mdoc cleanup,
but in one case the Lite2 changes were flat out wrong and
caused the man page to disagree with a header file.

There are still some *roff macro calls that were added that
I have yet to figure out what to do with in some of the man pages.

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Merge from Lite2 onto mainline -
- add undelete() and undelete.2 (requires libc minor bump some time)
- man page updates