Commit Graph

441 Commits

Author SHA1 Message Date
John Baldwin
2f5a9b7661 Add a "jail" keyword to list the name of a jail rather than its ID.
Inspired by:	mwlucas
Reviewed by:	jamie
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14683
2018-03-13 18:30:26 +00:00
Mike Karels
30417f2cd4 Change ps(1) output width to unlimited if not interactive
Apply patch submitted with PR 217159 to make ps use unlimited
width when not associated with a terminal (i.e., none of stdout, stdin,
or stderr is a tty). Update comments and man page correspondingly.
This change was requested to work around lack of -ww in scripts from
third-party packages, including Hadoop, and adds a small measure of
Linux compatibility. Hopefully few if any non-interactive scripts
depend on the old default of 79.

PR:		217159
Submitted by:	n.deepak at gmail.com
Reviewed by:	vangyzen jhb
Differential Revision:	https://reviews.freebsd.org/D14614
2018-03-10 00:10:47 +00:00
Mike Karels
b93bb974cc Revert r314685 in ps
Revert r314685, and add a comment describing the original
behavior and the intent.

Reviewed by:	dab@ vangyzen@ jhb@
Differential Revision:	https://reviews.freebsd.org/D14530
2018-02-28 00:17:08 +00:00
John Baldwin
faf5dd873e Remove some KSE references from ps(1).
- Simplify the description of -H to assume 1:1 threading.
- Drop 'process' from description of 'lwp' field and the corresponding
  XO field name.
- Do add an expansion of LWP in the description of 'lwp' and 'nlwps'.
- Add 'tid' as an alias for the 'lwp' field.

Reviewed by:	imp, kib (older version)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14021
2018-01-23 22:48:06 +00:00
Edward Tomasz Napierala
536062099a Add "vmaddr" ps(1) keyword.
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-12-01 11:32:05 +00:00
Pedro F. Giffuni
8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
Bryan Drewery
ea825d0274 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	Dell EMC Isilon
2017-10-31 00:07:04 +00:00
Edward Tomasz Napierala
4363782bc3 Undocument "tdnam" (leaving it as an alias), and rename the column
to TDNAME.

Suggested by:	bde
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-10-09 13:53:41 +00:00
Edward Tomasz Napierala
42ee5c3342 Fix long name (used by libxo) for the "tdnam" ps(1) keyword.
Reported by:	pluknet
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-10-09 13:48:10 +00:00
Edward Tomasz Napierala
a8373a7c1f Document "tdnam" keyword to ps(1), and add "tdname" alias.
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-10-09 10:24:06 +00:00
Edward Tomasz Napierala
d7026b9671 Fix kvm_getprocs(3) error reporting in ps(1).
Previously it just didn't work at all - kvm_getprocs(3) doesn't update
the &nentries when it returns NULL.  The end result was that ps(1) showed
garbage data instead of reporting kinfo_proc size mismatch.

Reviewed by:	cem
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D12414
2017-10-06 15:09:28 +00:00
Edward Tomasz Napierala
cde94a423f Hint that the "-o emul" option for ps(1) shows the ABI.
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-09-07 10:56:50 +00:00
Edward Tomasz Napierala
6f47d67bfe Make ps(1) flag processes in capsicum(4) capability mode with "C".
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-09-06 16:34:42 +00:00
Edward Tomasz Napierala
e4d52dfd1b Reflect realtime and idle priorities in ps(1) state flags, same like
we do for the usual nice values.  It could be argued that they should
use another set of indicators, since the underlying mechanism is
different, but they match the description in the manual page, and so
I think it's ok to not overcomplicate things.

PR:		81757
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-09-06 16:18:06 +00:00
Edward Tomasz Napierala
4162d13907 Use the "tree" word in ps(1) -d option description, to make it easier
to find.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-07-22 10:38:44 +00:00
Conrad Meyer
ef1d40da16 ps(1): Fix -w + UNLIMITED handling
A follow-up fix for r314685.

Because the -w flag is parsed after ps(1) infers termwidth from COLUMNS and
stdout, and UNLIMITED happens to be the zero value, the single -w flag in
combination with a non-terminal stdout or COLUMNS=0 could result in output
truncated at 131 characters.  (Despite the output being unlimited without
-w.)

Obviously, adding more -w shouldn't truncate output lines.

The committed patch is from bdrewery@, and I've reviewed and tested it.

Submitted by:	bdrewery@
Reported by:	bdrewery@
Sponsored by:	Dell EMC Isilon
2017-03-07 04:51:35 +00:00
Conrad Meyer
9c4241c3d7 ps(1): Only detect terminal width if stdout is a tty
If stdout isn't a tty, use unlimited width output rather than truncating to
79 characters.  This is helpful for shell scripts or e.g., 'ps | grep foo'.

This hardcoded width has some history: In The Beginning of History[0], the
width of ps was hardcoded as 80 bytes.  In 1985, Bloom@ added detection
using TIOCGWINSZ on stdin.[1]  In 1986, Kirk merged a change to check
stdout's window size instead.  In 1990, the fallback checks to stderr and
stdin's TIOCGWINSZ were added by Marc@, with the commit message "new
version."[2]

OS X Darwin has a very similar modification to ps(1), which simply sets
UNLIMITED for all non-tty outputs.[3]  I've chosen to respect COLUMNS
instead of behaving identically to Darwin here, but I don't feel strongly
about that.  We could match OS X for parity if that is desired.

[0]: https://svnweb.freebsd.org/csrg/bin/ps/ps.c?annotate=1065
[1]: https://svnweb.freebsd.org/csrg/bin/ps/ps.c?r1=18105&r2=18106
[2]:
https://svnweb.freebsd.org/csrg/bin/ps/ps.c?r1=40675&r2=40674&pathrev=40675
[3]:
https://opensource.apple.com/source/adv_cmds/adv_cmds-168/ps/ps.c.auto.html

PR:		217159
Reported by:	Deepak Nagaraj <n.deepak at gmail.com>
2017-03-04 22:38:10 +00:00
Warner Losh
fbbd9655e5 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
2017-02-28 23:42:47 +00:00
Eric van Gyzen
3d32d4a7c9 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.

Reviewed by:	kib
MFC after:	1 week
Relnotes:	yes
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D8722
2016-12-07 15:04:22 +00:00
John Baldwin
563e703714 Remove description of P_FOLLOWFORK as this flag was removed. 2016-08-12 16:13:50 +00:00
Warren Block
15919690b5 Correct the history of where ps first appeared.
PR:		211741
Submitted by:	Sevan Janiyan <venture37@geeklan.co.uk>
MFC after:	1 week
2016-08-12 14:10:11 +00:00
Konstantin Belousov
b7a25e63b6 When a debugger attaches to the process, SIGSTOP is sent to the
target.  Due to a way issignal() selects the next signal to deliver
and report, if the simultaneous or already pending another signal
exists, that signal might be reported by the next waitpid(2) call.
This causes minor annoyance for debuggers, which must be prepared to
take any signal as the first event, then filter SIGSTOP later.

More importantly, for tools like gcore(1), which attach and then
detach without processing events, SIGSTOP might leak to be delivered
after PT_DETACH.  This results in the process being unintentionally
stopped after detach, which is fatal for automatic tools.

The solution is to force SIGSTOP to be the first signal reported after
the attach.  Attach code is modified to set P2_PTRACE_FSTP to indicate
that the attaching ritual was not yet finished, and issignal() prefers
SIGSTOP in that condition.  Also, the thread which handles
P2_PTRACE_FSTP is made to guarantee to own p_xthread during the first
waitpid(2).  All that ensures that SIGSTOP is consumed first.

Additionally, if P2_PTRACE_FSTP is still set on detach, which means
that waitpid(2) was not called at all, SIGSTOP is removed from the
queue, ensuring that the process is resumed on detach.

In issignal(), when acting on STOPing signals, remove the signal from
queue before suspending.  Otherwise parallel attach could result in
ptracestop() acting on that STOP as if it was the STOP signal from the
attach.  Then SIGSTOP from attach leaks again.

As a minor refactoring, some bits of the common attach code is moved
to new helper proc_set_traced().

Reported by:	markj
Reviewed by:	jhb, markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D7256
2016-07-28 08:41:13 +00:00
Konstantin Belousov
81fc45fc23 Addm missed required call to xo_finish() when only header is printed.
Reported by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-07-23 06:30:00 +00:00
Conrad Meyer
45ed675344 ps(1): Expand variables to match expanded fields
ki_flag and ki_tdflag have been 'long', not 'int', since 2000 and 2005,
respectively.

Submitted by:	Shawn Wills <swills at isilon dot com>
Sponsored by:	EMC / Isilon Storage Division
2016-06-01 19:54:05 +00:00
Don Lewis
5912ca59b0 Fix CID 1011370 (Resource leak) in ps.
There is no need to to call strdup() on the value returned by fmt().
The latter calls fmt_argv() which always returns a dynamically
allocated string, and calling strdup() on that leaks the memory
allocated by fmt_argv().  Wave some const magic on ki_args and
ki_env to make the direct assignment happy.  This requires a tweak
to the asprintf() case to avoid a const vs. non-const mismatch.

Reported by:	Coverity
CID:		1011370
MFC after:	1 week
2016-05-25 05:12:56 +00:00
Marcelo Araujo
ec23a76360 Use NULL instead of 0 for pointers.
kvm_open(3) will return NULL when it cannot access kernel virtual memory.

MFC after:	2 weeks.
2016-04-19 00:40:43 +00:00
Glen Barber
30922917c8 MFH
Sponsored by:	The FreeBSD Foundation
2016-02-10 04:20:39 +00:00
Glen Barber
ac2875fa16 Explicitly add unmarked bin/ binaries to the runtime package.
Note: tcsh(1) has a MK_TCSH=no test, so this should be a separate
package, which requires pre-install/post-install scripts, to be
added later.

Sponsored by:	The FreeBSD Foundation
2016-02-09 16:58:50 +00:00
Konstantin Belousov
db57c70a5b Rename P_KTHREAD struct proc p_flag to P_KPROC.
I left as is an apparent bug in ntoskrnl_var.h:AT_PASSIVE_LEVEL()
definition.

Suggested by:	jhb
Sponsored by:	The FreeBSD Foundation
2016-02-09 16:30:16 +00:00
Craig Rodrigues
5ef011150c Fix spelling, as recommended by igor tool. 2015-12-01 19:20:38 +00:00
Craig Rodrigues
06691045ba Add more text to explain --libxo flag. 2015-12-01 19:18:53 +00:00
Bryan Drewery
cf990407e1 Update dependencies after r291406 added libelf to libkvm.
Unfortunately filemon/meta mode tracks all indirect dependencies here
since ld(1) is reading libelf when linking in libkvm.  Churn would be
reduced if this was able to be limited to direct dependencies.

Sponsored by:	EMC / Isilon Storage Division
2015-12-01 05:18:48 +00:00
Enji Cooper
550d2b80ec Make libxo depend on libutil because it uses humanize_number after r287111
Remove overlinking in lib/libxo/tests, sbin/savecore, and
usr.bin/{iscsictl,wc,xo}

PR: 203673
Sponsored by: EMC / Isilon Storage Division
2015-10-18 07:30:50 +00:00
Bryan Drewery
42c4cf86d4 Update META_MODE dependencies. 2015-09-17 05:06:34 +00:00
Marcel Moolenaar
d1a0d267b7 Upgrade libxo to 0.4.5.
Local changes incorporated by 0.4.5: r284340
Local changes retained: r276260, r282117

Obtained from:	https://github.com/Juniper/libxo
2015-08-24 16:26:20 +00:00
Joel Dahl
169a18552e mdoc: minor Xr fixes 2015-07-14 19:45:35 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Marcelo Araujo
16eb357647 Remove unused variable, this variable fmtstr was introduced at revision r225868
and it is not used anymore after the convertion to use libxo at revision r283304.

Differential Revision:	D2678
Reviewed by:		marcel
2015-06-01 06:00:04 +00:00
Sergey Kandaurov
e8d89b8442 Document recent p_flag2 additions. 2015-05-27 10:08:31 +00:00
Simon J. Gerraty
98e0ffaefb Merge sync of head 2015-05-27 01:19:58 +00:00
Marcel Moolenaar
8beb1a2fdc Convert to use libxo. Document use of libxo as well.
Obtained from:  Phil Shafer <phil@juniper.net>
Sponsored by:   Juniper Networks, Inc.
2015-05-22 23:07:55 +00:00
Mark Felder
c2290ff6b8 Use 24h timestamps in the ps(1) STARTED column
The previous 12h AM/PM format was perplexing as it didn't follow the
locale of the user and was a minor annoyance to FreeBSD users coming
from Linux. Additionally, the man page was incorrect about the strftime
format.

There are three time formats that may be displayed in the STARTED
column depending on the age of the process. Below is an example.

For a process started at 14:30 on Monday 16 March 2015, the following
formats may be used:

14:30 for process < 24h old (24h Timestamp)
Mon14 for process > 24h, < 1 week old (Weekday Hour)
16Mar15 for process > 1 week old (Day Month Year)

Differential Revision:	https://reviews.freebsd.org/D1620
Reviewed by:	brd
Approved by:	trasz
2015-03-17 12:40:33 +00:00
Pedro F. Giffuni
484f578134 Prevent access to an uninitialized variable
The "-h" option may access an uninitialized value. Prevent it
by properly initializing the value.

CID:	1006559
2015-01-31 15:41:01 +00:00
Konstantin Belousov
6ddcc23386 Add facility to stop all userspace processes. The supposed use of the
feature is to quisce the system before suspend.

Stop is implemented by reusing the thread_single(9) with the special
mode SINGLE_ALLPROC.  SINGLE_ALLPROC differs from the existing
single-threading modes by allowing (requiring) caller to operate on
other process.  Interruptible sleeps for !TDF_SBDRY threads are
suspended like SIGSTOP does it, instead of aborting the sleep, like
SINGLE_NO_EXIT, to avoid spurious EINTRs on resume.

Provide debugging sysctl debug.stop_all_proc, which causes total stop
and suspends syncer, while waiting for variable reset for resume.  It
is used for debugging; should be removed after the real use of the
interface is added.

In collaboration with:	pho
Discussed with:	avg
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-12-13 16:18:29 +00:00
Baptiste Daroussin
12cd1730ee Convert bin/ to LIBADD, reduce overlinking allow to build all components as
static
2014-11-25 11:15:40 +00:00
Simon J. Gerraty
9268022b74 Merge from head@274682 2014-11-19 01:07:58 +00:00
Mateusz Guzik
8b04bbef31 Return real parent pid in kinfo (used by e.g. ps)
Add a separate field which exports tracer pid and add a new keyword
("tracer") for ps to display it.

This is a follow up to r270444.

Reviewed by:	kib
MFC after:	1 week
Relnotes:	yes
2014-08-28 08:41:11 +00:00
Simon J. Gerraty
ee7b0571c2 Merge head from 7/28 2014-08-19 06:50:54 +00:00
Konstantin Belousov
d735998057 Correct the problems with the ptrace(2) making the debuggee an orphan.
One problem is inferior(9) looping due to the process tree becoming a
graph instead of tree if the parent is traced by child. Another issue
is due to the use of p_oppid to restore the original parent/child
relationship, because real parent could already exited and its pid
reused (noted by mjg).

Add the function proc_realparent(9), which calculates the parent for
given process. It uses the flag P_TREE_FIRST_ORPHAN to detect the head
element of the p_orphan list and than stepping back to its container
to find the parent process. If the parent has already exited, the
init(8) is returned.

Move the P_ORPHAN and the new helper flag from the p_flag* to new
p_treeflag field of struct proc, which is protected by proctree lock
instead of proc lock, since the orphans relationship is managed under
the proctree_lock already.

The remaining uses of p_oppid in ptrace(PT_DETACH) and process
reapping are replaced by proc_realparent(9).

Phabric:	D417
Reviewed by:	jhb
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-08-07 05:47:53 +00:00