Add a -d option to ps to display descendant info with the output.
This is similar to linux's -H (or -f) switch.

MFC after: 3 weeks

Update the projects tree to a newer FreeBSD current.

[1] When showing threads, the thread name just appears if the comm
label is choosen as last printout (ucomm suffers of this such bug
too). That bug is caused by the fact that the fixed size of
pr

[1] When showing threads, the thread name just appears if the comm
label is choosen as last printout (ucomm suffers of this such bug
too). That bug is caused by the fact that the fixed size of
printout doesn't leave enough space for them to be printed out.
Implement ucomm and comm commands with a dynamic size lenght for
buffers.

[2] On AMD64 architecture pointers don't have enough chars space to
be shown (8 chars while they need 16). Fix them by providing
a variadic space so that it fits well on both 64 and 32 bits
architectures.

[3] Check a return value of malloc() that wasn't checked before.

PR: bin/128841, bin/128842
Reviewed by: jhb, emaste
Sponsored by: Sandvine Incorporated

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integrate from head@185615

Fix whitespace.

Introduce a way to make pure kernal threads.
kthread_add() takes the same parameters as the old kthread_create()
plus a pointer to a process structure, and adds a kernel thread
to that process.

kpro

Introduce a way to make pure kernal threads.
kthread_add() takes the same parameters as the old kthread_create()
plus a pointer to a process structure, and adds a kernel thread
to that process.

kproc_kthread_add() takes the parameters for kthread_add,
plus a process name and a pointer to a pointer to a process instead of just
a pointer, and if the proc * is NULL, it creates the process to the
specifications required, before adding the thread to it.

All other old kthread_xxx() calls return, but act on (struct thread *)
instead of (struct proc *). One reason to change the name is so that
any old kernel modules that are lying around and expect kthread_create()
to make a process will not just accidentally link.

fix top to show kernel threads by their thread name in -SH mode
add a tdnam formatting option to ps to show thread names.

make all idle threads actual kthreads and put them into their own idled process.
make all interrupt threads kthreads and put them in an interd process
(mainly for aesthetic and accounting reasons)
rename proc 0 to be 'kernel' and it's swapper thread is now 'swapper'

man page fixes to follow.

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- Move all of the PS_ flags into either p_flag or td_flags.
- p_sflag was mostly protected by PROC_LOCK rather than the PROC_SLOCK or
previously the sched_lock. These bugs have existed for some

- Move all of the PS_ flags into either p_flag or td_flags.
- p_sflag was mostly protected by PROC_LOCK rather than the PROC_SLOCK or
previously the sched_lock. These bugs have existed for some time.
- Allow swapout to try each thread in a process individually and then
swapin the whole process if any of these fail. This allows us to move
most scheduler related swap flags into td_flags.
- Keep ki_sflag for backwards compat but change all in source tools to
use the new and more correct location of P_INMEM.

Reported by: pho
Reviewed by: attilio, kib
Approved by: re (kensmith)

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For pts, print the pts number, instead of the full name. As it was, we ended
up always printing "pts".

Submitted by: Michal Mertl <mime at traveller dot cz>

Use warn() instead of perror().

Change the "rtprio" format so it prints an informative string for
the PRI_ITHD case (instead of just printing the digit '1').

Submitted by: Cyrille Lefevre

Change "struct varent" to use the standard queue(8) macros, instead of
using it's own version of the same basic algorithm.

Submitted by: part by Cyrille Lefevre, part of it done by me

Avoid padding the value of "ucomm" when it is the last column in the line.

Submitted by: Cyrille Lefevre

Make sure the value of "upr" (scheduling priority on return from system call)
is scaled in the same way that "pri" (scheduling priority) is scaled.

Submitted by: Cyrille Lefevre

Have `ps' return the cputimes for zombies, with the assumption that
kvm_getprocs() will provide useful information if it can, or *it*
will provide a zero value if it can not find something appropriat

Have `ps' return the cputimes for zombies, with the assumption that
kvm_getprocs() will provide useful information if it can, or *it*
will provide a zero value if it can not find something appropriate.

Submitted by: bde

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Add the `-O emul' format option, which prints the name of the system-call
emulation environment the process is in. "emul" as a keyword is picked
up from OpenBSD.

PR: bin/65803
Submitted by: Cyrill

Add the `-O emul' format option, which prints the name of the system-call
emulation environment the process is in. "emul" as a keyword is picked
up from OpenBSD.

PR: bin/65803
Submitted by: Cyrille Lefevre

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From SUSv3:
Any [standard output] field need not be meaningful in all
implementations. In such a case a hyphen ('-') should be
output in place of the field value

So have the `-O label' o

From SUSv3:
Any [standard output] field need not be meaningful in all
implementations. In such a case a hyphen ('-') should be
output in place of the field value

So have the `-O label' option print out the string " -" if the
process has no label.

Approved by: Silence from rwatson and green (when asked in March...)

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Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

Fix `-o rtprio' so it prints the correct value.

PR: bin/59417
Submitted by: Jan Willem Knopper
This fix by: bde (in the audit-trail of the PR)

Implement the nwchan keyword that has been in the man page, but was
not implemented. This is just handy if you want to ddb the address
some process is waiting on.

Revert the zombie part of previous commit

Correct style bugs. Don't skip zombies in cputime(), according to Bruce,
zombie CPU times are valid. Adjust array size in strftime(3).

Submitted by: Bruce

Display residency and sleep times (re and sl fields) larger than 127 as 127.
This is what the manual page says ps should do, and what OpenBSD and NetBSD do.
Based on a patch from Ken Stailey.

PR: 2

Display residency and sleep times (re and sl fields) larger than 127 as 127.
This is what the manual page says ps should do, and what OpenBSD and NetBSD do.
Based on a patch from Ken Stailey.

PR: 27433, 46232

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Display elapsed time (-o etime) using [[dd-]hh:]mm:ss, which according to
Solaris man page is the POSIX way.

Reviewed by: jmallett

Per-variable\ entry headers, to allow the 'ps -otime -otime=FOO' or similar
case to do the right thing and affect exactly one column. This is consistent
with GNU ps(1) in BSD mode, and POLA.

Refer to the process label as proclabel, as there is a function called label,
and that's what these locals were called before.