Commit Graph

2393 Commits

Author SHA1 Message Date
Jim Warner
2ca99a2ee4 top: adapt former PRETEND8CPUS #define as PRETEND48CPU
This patch simply allows for better testing of our two
new toggles: '4' (2 abreast) plus '!' (combined cpus).

It had previously been dropped under the newlib branch
since top no longer managed cpus. However, now that we
have those new toggles, it seemed worth the efforts to
once again re-imagine then implement such a provision.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-05-28 19:49:40 +10:00
Jim Warner
c2d10e7f07 top: add '!' toggle for combined cpus display, man doc
Reference(s):
https://gitlab.com/procps-ng/procps/-/issues/172

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-05-28 19:49:40 +10:00
Jim Warner
94d6db6b40 top: add '!' toggle for combined cpus display, program
When implementing that earlier '4' toggle, in response
to the issue referenced below, I got to thinking about
those environments with massively parallel processors.

Such environments may not benefit from the '4' toggle.

So, I decided to implement a feature that could enable
use of those '1' and/or '4' toggles no matter how many
active processors top may have ultimately encountered.

With the new '!' toggle, adjacent cpus can be combined
to any degree, represented as a single cpu group/line.

Reference(s):
https://gitlab.com/procps-ng/procps/-/issues/172

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-05-28 19:49:40 +10:00
Jim Warner
6e5f2c8de6 top: add '4' toggle for 2 abreast cpu display, man doc
Reference(s):
https://gitlab.com/procps-ng/procps/-/issues/172

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-05-28 19:49:40 +10:00
Jim Warner
59f5a37a24 top: add '4' toggle for 2 abreast cpu display, program
In the back of my mind, I've always wanted to enable a
two abreast cpu display. Folks with massively parallel
machines must surely have been frustrated with the '1'
toggle when Off (individual cpus in the Summary Area).

So, I'll use that recently raised issue shown below as
a justification for finally implementing this feature.

Reference(s):
https://gitlab.com/procps-ng/procps/-/issues/172

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-05-28 19:49:40 +10:00
Jim Warner
4c336ae9e6 top: eliminate a long standing extraneous comment line
Wow, hard to believe the extraneous comment line dates
all way back to an introduction of NLS support (2011).

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-05-28 19:49:40 +10:00
Jim Warner
46f7949845 library: misc accumulated cosmetic header file changes
Well gosh, I only accumulated 1 minor cosmetic change.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-05-28 19:49:40 +10:00
Craig Small
fc69028d37 doc: First cut at new combined API doc
Instead of repeating the same thing for each info type, use one
huge man page. Needs more work but lets see how it looks for now.
2020-05-19 22:43:21 +10:00
Craig Small
0aa0f92727 docs: Add namespace man pages 2020-05-18 21:42:49 +10:00
Craig Small
2b6ad61f3c docs: Update the uptime man pages
Three functions in the same manpage but use the so commands
to refer to the main man page.
2020-05-18 21:10:03 +10:00
Craig Small
9f751a7538 pgrep: Allow older than selection
Re-work merge request !79 of @edneville to permit older than
selection using the new library API.

References:
 procps-ng/procps!79
2020-05-17 23:00:27 +10:00
Craig Small
eeb8cf00a4 watch: add additional notes about environment
References:
 procps-ng/procps!62
 commit d3e0ff5a0a
2020-05-12 19:30:28 +10:00
Harry Wagstaff
09b62573b1 Add information on WATCH_INTERVAL env var to watch documentation 2020-05-12 19:25:38 +10:00
Harry Wagstaff
f0a3cd4b1f Add ability to specify watch interval using environment variable WATCH_INTERVAL 2020-05-12 19:25:26 +10:00
Craig Small
48a201c46f vmstat: Add NEWS and revert comment from prev
Reverted the translation hint as the fields are used for both
normal and wide modes, so need to fit the smaller of the two.

Added NEWS item

References:
 commit 01c1b2345e
2020-05-12 19:06:34 +10:00
Ivan Skytte Jørgensen
236b956c69 Use wide columns for r/b too in wide mode
2 digits are not enough for number of runnable/blocked processes on modern
systems. Changed to 4 digits with given the -w option.

References:
 procps-ng/procps!48
2020-05-12 19:03:34 +10:00
Dylan Swiggett
59e378642e Fixes small bug in struct proc_t documentation.
From http://man7.org/linux/man-pages/man5/proc.5.html:

(22) starttime  %llu
                        The time the process started after system boot.  In
                        kernels before Linux 2.6, this value was expressed
                        in jiffies.  Since Linux 2.6, the value is expressed
                        in clock ticks (divide by sysconf(_SC_CLK_TCK)).
2020-05-11 17:44:48 +10:00
Arun Chandrasekaran
cd7ea2abf3 kill: use sigqueue to pass value with the signal.
New -q/--queue option for kill so it will send an integer to the
signalled process. See sigqueue(3) for details.

References:
 https://pubs.opengroup.org/onlinepubs/009695399/functions/sigqueue.html
 procps-ng/procps!32

Signed-off-by: Craig Small <csmall@dropbear.xyz>
2020-05-11 17:36:12 +10:00
Craig Small
557fda8f98 build-sys: Enable testing of sigqueue
The referenced commits enavled both pkill and kill to send an integer to
the killed or signalled process. The test_process now will report on the
integer if sent and the testsuite changes take advantage of this
new feature.

Another process make/destroy set had to be made as using spawn
instead of exec changes both the SID and TTY for the underlying
process, making other tests fail.

References:
 commit 7d55409b82
 commit 2b804a532a
2020-05-11 16:59:18 +10:00
Arun Chandrasekaran
89392e67a9 pgrep: use sigqueue to pass value with the signal.
Based on the command line option, use 'sigqueue'
instead of 'kill' to pass the integer value with
the signal.

References:
 procps-ng/procps!32

Signed-off-by: Craig Small <csmall@dropbear.xyz>
2020-05-11 16:59:14 +10:00
Craig Small
7f44382938 kill: Adjust documentation for sigqueue
Added NEWS item
Changed the section for sigqueue as its 3 for me.
2020-05-11 16:51:28 +10:00
Wieland Hoffmann
4649c52249 INSTALL.md: Replace blockquotes with code blocks
The previous syntax (`> `) is for blockquotes, which don't keep newlines when
rendered. Codeblocks (` ` at the beginning of the line) do.
2020-04-24 18:56:16 +10:00
Craig Small
fb0915c3ca free: Adjust space to really use 9 chars
@steffhip found that while the translation hint said use 9 characters in
the free headers, it really was only 7.

Currently each line is constructed with the following (in non wide format):
Header + 6 Columns.  The header takes 7 characters and each column is 11
characters wide and prefixed with one space. Thus we have
7 + (1 + 11) * 6 = 79 characters for each line

By dropping the leading space for the first column after the header -the
header is already terminated by a colon- one could indeed provide the needed
9 letters for the header and thus have 9 + 11 * 1 + (1 + 11) * 5 = 80 Chars
per line which would fit into one line.
2020-04-24 17:49:12 +10:00
Todd Lewis
3c079c821a Fix user and group name to number conversion for uid/gid above 2^31. 2020-04-24 17:36:27 +10:00
Jim Warner
992217d1c0 top: updated man page and copyright dates to year 2020
Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-04-20 22:07:43 +10:00
Jim Warner
5cb46d3533 library: adapted to the latest lxc conventions (again)
Well, shit! With release 4.0 on March 25th the lxc/lxd
folks have stuck it to us once again. They changed the
cgroup lxc prefix used to identify the container name.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-04-20 22:07:43 +10:00
Craig Small
ebaa5f2823 NEWS: Add item for previous entry
Added NEWS item for pidof show worker threads patch

References:
 commit 9c3296bae9
2020-04-10 15:00:31 +10:00
Jan Rybar
6f9565b3c7 pidof: show worker threads
Reimplementation of pidof for procps toolset contains sort of deactivated code and does not return results for processes without task.cmdline entry (usually kernel worker threads). Old pidof and pgrep do that in comparison. Despite all perks provided by using pgrep instead, pidof should show those workers again.
2020-04-10 14:58:15 +10:00
Jim Warner
f5a6f4af6d NEWS: fix top alpha order, add 'e' command line switch
Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-04-10 14:37:15 +10:00
Jim Warner
3a3c1604ff top: for symmetry with 'E' add 'e' command line switch
Several years after the 'e' & 'E' interactive commands
were introduce to affect memory scaling, an 'E' switch
was added. This was after discovering a dropped Redhat
patch which provided a unique 'M' command line switch.

If only for symmetry it makes sense to offer a similar
command switch ('e') for the Task Area memory scaling.

As was true with 'E', top's help text will show 'e' as
if it were a switch without arguments in order to keep
help text displayed without wrap in an 80x24 terminal.
The man page, however, will show all of the arguments.

Reference(s):
https://gitlab.com/procps-ng/procps/-/issues/165
. 03/2017, added 'E' command line switch
commit b2bd65407a
. 12/2012, added 'e' interactive command
commit 21e550bc08
. 12/2012, added 'E' interactive command
commit bc46f67f9a

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-04-10 14:37:15 +10:00
Jim Warner
b8f757080a ps: eliminated inadvertent trailing double semi-colons
Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-04-10 14:37:15 +10:00
Jim Warner
11af3b2020 top: eliminate inadvertent trailing double semi-colons
Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-04-10 14:37:15 +10:00
Craig Small
7f83a8faab NEWS: synchronise the entries 2020-04-07 19:40:35 +10:00
Craig Small
b3f7bfede6 docs: Mention stime in ps.1
References:
 procps-ng/procps#164
2020-04-07 19:38:17 +10:00
Craig Small
5da3024e4e sysctl: config directory order
Matches the systemd directory order (/run is after /etc) and
document what directories are used better.
2020-02-27 21:56:13 +11:00
Jim Warner
d28f3f28aa top: restore configuration file backward compatibility
The Debian bug referenced below has nothing to do with
locales. In fact, top was made locale independent back
in release 3.3.13 (April, 2018). However, that bug did
reveal some misplaced logic which this patch corrects.

Prompted by the Qualys audit, all rcfile field strings
were checked for potential duplicates which could only
have resulted from some user's manual/malicious edits.

Unfortunately, that code was executed before top had a
chance to enforce the proper/maximum string length (in
the event an extremely old rcfile had just been read).
This created some potential string overrun references.

In top's original 3.3.15 implementation, the potential
overrun extended for 15 characters. That is the number
of field characters added with 3.3.9 (December, 2013).
But, since strchr() was used, no error exit was taken.

In the revised 3.3.16 implementation, the strchr() was
replaced with '&w->rc.fieldscur[n]'. This held overrun
to a single position while producing an error message.

So, this commit just moves that logic to a point where
fieldscur is guaranteed to be longer than EU_MAXPFLGS.

Reference(s):
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=951335
. revised 3.3.16 validation logic
commit 775223a817
. original 3.3.15 validation logic
commit 085351a0ee

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-02-18 11:36:04 +11:00
Jim Warner
be31d2470b top: restore one line of code to sig_endpgm() function
When that potential abend at program end was addressed
in the patch shown below, one line of code was removed
in error. That line served to suppress some end-of-job
reports should ATEOJ_RPTSTD or ATEOJ_RPTHSH be active.

So, this patch restores that previously deleted logic.

Reference(s):
. potential SEGV fix, newlib branch
commit 90c22e64ff

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-02-18 11:36:04 +11:00
Jim Warner
1f01bd9a9f ps: for abnormal end allow core dumps (fix qualys bug)
A Qualys audit patch, represented in the commit below,
added the _exit() call to our abnormal signal handler.
Unfortunately, that disabled the associated core dump.

This patch restores expected behavior of those signals
whose default produces a core dump file + termination.

Reference(s):
commit 7bd4f0b6d7

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-01-06 09:11:20 +11:00
Jim Warner
1d73eb567c top: at abnormal end allow core dumps (fix qualys bug)
A Qualys audit patch, represented in the commit below,
added the _exit() call to our abnormal signal handler.
Unfortunately, that disabled the associated core dump.

This patch restores expected behavior of those signals
whose default produces a core dump file + termination.

Reference(s):
commit e1f419737f

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-01-06 09:11:20 +11:00
Jim Warner
12b6452135 library: allow negative system DELTA stats, <STAT> api
All TIC delta fields are checked for possible negative
results and set to zero when found. This is done so as
to protect against potential anomalies which depend on
kernel version and/or toggling cpus offline or online.

[ it's probably unnecessary with the latest kernels, ]
[ except for iowait. documentation suggests it might ]
[ decrease which would then create a negative delta. ]

The same approach is employed for most of the 'system'
deltas (ctxt, intr & procs_created). However, with two
of the fields (procs_blocked & procs_running) negative
results were allowed. But it now seems such a division
is unwise so this patch will allow all to go negative.

[ rather than force any 'system' delta value to show ]
[ what's logical, we'll now let all reflect reality. ]

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-01-06 09:11:20 +11:00
Jim Warner
5c37e2d42d library: strictly cosmetic change involving whitespace
This patch just standardizes/normalizes the whitespace
employed within a couple of nearly identical #defines.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-01-06 09:11:20 +11:00
Jim Warner
a331659015 top: reposition some data due to a translation comment
In a translator hint, under a caution, a reference was
made to the "next three items". Unfortunately however,
there was one intervening 'item' to which that caution
did not apply. This commit just relocates that 'item'.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-01-06 09:11:20 +11:00
Craig Small
416b91836a pgrep: check sanity of SC_ARG_MAX
A kernel change means we cannot trust what sysconf(SC_ARG_MAX)
returns. We clamp it so its more than 4096 and less than 128*1024
which is what findutils does.

References:
 procps-ng/procps#152
 https://git.savannah.gnu.org/cgit/findutils.git/tree/lib/buildcmd.c#n535
 https://lwn.net/Articles/727862/
 commit bb96fc4295
2020-01-05 15:19:41 +11:00
Jim Warner
7ef9289ae9 top: update copyright notations & fix a man page error
Beyond the copyrights, the single oops in the man page
was introduced in the commit which is referenced below
dealing with some cleanup following that Qualys audit.

Reference(s):
. man page error introduced
commit 4550e60144

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-10-27 22:27:49 +11:00
Jim Warner
8174a5c8b7 top: whack insidious bug surrounding auto-sized fields
This patch will eliminate a bug which is unique to our
newlib branch. It's extremely rare and only happens if
a search ('L'/'&') is initiated during the period when
fields are currently being auto-sized (AUTOX_MODE on).

This bug surfaces as either all zero results for tasks
displayed or a segmentation fault, depending upon what
fields were activated. It is caused by the timing of a
call to the <pids> 'reset' function. When called after
a task refresh, but before do_key(), this bug appears.

So this patch just ensures that 'reset' will be called
after do_key() & before the tasks have been refreshed.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-10-27 22:27:49 +11:00
Jim Warner
11cf6cc005 library: removed that 'calloc/free' cruft where doable
Under newlib, the only caller of the readproc routines
is that pids module. And in every case, the address of
some static proc_t structure has always been provided.

As a result, there is no need for the logic supporting
calloc() for a possible NULL pointer which was present
in both of those readproc() and readeither() routines.

Additionally, that pids module takes ownership of most
dynamically acquired 'str' plus 'strv' memory whenever
assigning to a results structure. So, henceforth under
the free_acquired() guy we will only free those string
fields which might exist when not explicitly selected.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-10-27 22:27:49 +11:00
Jim Warner
281c37d1cd library: removed that 'simple_readtask' unused pointer
This patch just eliminates a parameter present for the
simple_readtask() function which is not needed nor has
it ever actually been used. It will make calls to that
function (via taskreader ptr) slightly more efficient.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-10-27 22:27:49 +11:00
Jim Warner
b5587b7b94 library: removed that 'did_fake' flag from the PROCTAB
When some cleanup was performed on the readproc module
in the commit shown below, some residual code involved
with the 'did_fake' flag remained. Since such logic no
longer served any real need, this patch will whack it.

Reference(s):
. cleanup of readproc functions
commit 887bb51016

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-10-27 22:27:49 +11:00
Jim Warner
97f7c7a549 library: removed that 'SIGNAL_STRING' conditional code
No libprocps user expects signal values to be returned
as 'long long' quantities. More importantly the <PIDS>
api only returns a 'str' result for signal categories.

So this patch eliminates all the conditional code that
depends on the absence of the #define 'SIGNAL_STRING'.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-10-27 22:27:49 +11:00
Jim Warner
11df806a7c library: correct one reference typo in that <PIDS> api
This patch will just correct an oops introduced in the
commit shown below. Thank goodness both 'str' & 'strv'
occupy the same storage location in that result union.

Reference(s):
. standardize 'errno' management
commit 06be33b43e

Signed-off-by: Jim Warner <james.warner@comcast.net>
2019-10-27 22:27:49 +11:00