src/usr.bin/top, branch releng/10.4

MFC r266773,r280680,r311710:

2017-01-13T08:24:41+00:00

r266773 (by jhb):

Fix a couple of size_t != int warnings.

r280680 (by kevlo):

Print size_t's with %zu rather than "%zd.

r311710:

Style fixes

- Delete trailing whitespace
- Use nitems(mib) instead of hardcoding the mib length

MFC r309676

2016-12-15T16:52:17+00:00

Export the whole thread name in kinfo_proc

kinfo_proc::ki_tdname is three characters shorter than
thread::td_name.  Add a ki_moretdname field for these three
extra characters.  Add the new field to kinfo_proc32, as well.
Update all in-tree consumers to read the new field and assemble
the full name, except for lldb's HostThreadFreeBSD.cpp, which
I will handle separately.  Bump __FreeBSD_version.

Sponsored by:	Dell EMC

MFC 284165:

2015-06-17T02:30:12+00:00

Move contrib/top/top.X to contrib/top/top.xs and move
contrib/top/top.local.H to contrib/top/top.local.hs.
Change the makefile accordingly.

MFC r265267:

2014-05-17T02:45:59+00:00

  Fix width/alignment of JID column. Make it support up to the maximum 7-wide
  JIDs. On a system using jails for common tasks the JID can quickly increase.

MFC r265249,r265250,r265251:

2014-05-17T02:39:20+00:00

    - Add -J command/flag to filter by jail name/jid. This will automatically
      display the JID as well (the -j command/flag).
    - Add a hint for 'u' and 'J' command that '+' displays all.
    - Add J command to help.

Bump the CPU/WCPU column width by one so that it fits values from 100% up

2013-06-11T19:05:29+00:00

to 999.99% CPU.  It still won't be aligned if you have a multithreaded
process using more than 1000% CPU (e.g. idle process on an idle 12-way
system), but 100% is a common case.

Submitted by:	Jeremy Chadwick (partial)
MFC after:	1 week

Fix the 'C' field for a running thread to match the behavior described

2013-03-11T16:33:05+00:00

in the manpage by having it display the current CPU (ki_oncpu) rather
than the previously used CPU (ki_lastcpu).  ki_lastcpu is still used for
all other thread states.

Reported by:	Chris Ross 
MFC after:	1 week

Use the correct size when allocating the cmdbuf string.

2012-11-19T08:03:40+00:00

cmdlengthdelta is the size of the header and we were using it to
allocate a buffer to store the command line. This would mean that
the cmdbuf could be too short. In practice this was never noticed unless
you usually run top -a. On a stock FreeBSD system you can see the
problem by running sendmail and then running top -a on a big terminal
window. In practice this doubles to size available to cmdbuf since the
header is around 65-68 bytes.

Reviewed by:	adrian

Add the PID column to the list of sort keys.

2012-11-11T08:16:33+00:00

Correct the order of the MFU and MRU labels. I had reversed them.

2012-10-19T12:28:26+00:00

Submitted by:	Nikolay Denev  ndenev gmail
Pointy hat to:	jhb
MFC after:	3 days