Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

libkvm code janitoring

- make WARNS=6 clean for archs w/o strict alignment requirments
- add const, ANSIfy, remove unused vars, cast types for comparison
- thanks to differing definitions of VM_MIN_ADDRESS across our archs, we
need to trick the compiler to not complain about signedness. We could
either fix VM_MIN_ADDRESS to always be a simple integer or make the
check conditional on $ARCH.

Closes PRs: kern/42386, kern/83364
Reviewed by: bde

Fix missing includes of <string.h>, to silence some compiler warnings.

Submitted by: Pawel Worach

Use _WANT_FILE to make struct file visible from userland. This is
similar to _WANT_UCRED and _WANT_PRISON and seems to be much nicer than
defining _KERNEL.
It is also needed for my sys/refcount.h change going in soon.

- Update kvm_deadfiles to be compatible with the new system which has no
global list of all files.
- Mark kvm_getfiles() as broken since the live version exports struct xfile
with no filelist at the head and does so incorrectly and the deadfiles
version exports struct file with a filelist at the head. It is not known
if either version works or complies to the manpage.

Remove the advertising clause. UCB did this some time ago, but these
files were never updated to reflect that.

MFC After: 2 days

Remove unnecssary <vm/swap_pager.h> includes.

These were probably not cleaned up back in whatever murky past these
files were split into separate files.

Remove 'register' keyword.

Compensate for "Compensate for header dethreading" by backing it out.

Implement __FBSDID()

Compensate for header dethreading.

Use macro API to <sys/queue.h>

Correct an error message presumably as a result of cut/paste.
kvm_getfiles() referred to itself as kvm_getprocs().

Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.

Use kldsym(2) to lookup symbol values. This avoids the kvm_mkdb juggling
and is module aware. Yes, this means that kvm_nlist(3) will find symbols
in loaded modules. The emulation of the nlist struct is pretty crude but
seems to work well enough for all the users in the tree that I found.

The length argument to sysctl is now size_t.

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

From Lite2: proc and file LIST changes

Removed unnecessary include of <sys/tty.h>. tty.h apparently once had
some user interfaces in it. It no longer does.

Remove trailing whitespace.

Remove some unused variables and fix two blatant core dump triggers.

Don't include sys/exec.h.

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

BSD 4.4 Lite Lib Sources