Commit Graph

411 Commits

Author SHA1 Message Date
Jim Warner
6c148b4f8b docs: with systemd now in library, remember openproc.3
[ plus remove just a little darn trailing whitespace ]

Reference(s):
. systemd migrated to library
commit 9d8ad6419f
. added library documentation
commit a74fb8fade

Signed-off-by: Jim Warner <james.warner@comcast.net>
2014-07-18 20:49:57 +02:00
Jim Warner
1da2c98937 library: disable a potential 'ELF note' is missing msg
The stderr message regarding ELF notes appears on some
systems (openSUSE-13.1 for example) but I have not yet
isolated why. Since at startup we go on to determine a
Hertz value the old fashion way, this patch just turns
off the useless message until the cause is understood.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2014-07-17 13:31:06 +02:00
Jim Warner
9d8ad6419f library: generalize then add former 'ps' systemd logic
Signed-off-by: Jim Warner <james.warner@comcast.net>
2014-07-17 13:31:06 +02:00
Jaromir Capik
b779855cf1 library: fallback MemAvailable evaluation if missing
This commit adds support for fallback calculation
of the MemAvailable field if not exported by the
kernel. The MemAvailable field appeared in kernel
3.14, but it's possible to calculate it from other
fields since 2.6.27 (splitLRU changes).
2014-07-15 19:17:02 +02:00
Jaromir Capik
d75d8addc6 library: additional comments to the buffer size increase 2014-07-14 19:44:14 +02:00
Jaromir Capik
b2ad21990a library: fixing buffer sizes in sysinfo.c 2014-07-14 19:07:25 +02:00
Jaromir Capik
d4ddc96bc1 library: changing P_G_SZ from 20 to 33
Nowadays the usernames can be 32 characters long
(typically OpenShift usernames use the whole length)
and the old limit was preventing us from processing
them correctly.
The macro change affects the proc_t structure size.
2014-07-14 16:21:52 +02:00
Jaromir Capik
0393047a4f library: removing note about PROC_{PID,UID} being obsolete 2014-07-14 16:12:53 +02:00
Jaromir Capik
a74fb8fade docs: adding openproc(), readproc() and readproctab() man 2014-07-14 16:07:23 +02:00
Jaromir Capik
ba6396f886 free: support for MemAvailable
This commit adds a new switch -a/--available that
appends a new column called 'available' to the
output. The column displays an estimation
of how much memory is available for starting
new applications, without swapping. Unlike the data
provided by the 'cached' or 'free' fields, this
field takes into account page cache and also that
not all reclaimable memory slabs will be reclaimed
due to items being in use.
2014-07-11 22:34:06 +02:00
Jaromir Capik
2f96eef7f8 library: reverting tmpfs subtraction from cached (18-FEB-2014)
The subtraction was marked as reinforcing the misconception,
that memory in the page cache can be considered free.
The Cached value is not a sum of page cache and tmpfs,
as the tmpfs memory lives in the page cache and therefore
it's an inseparable part of it.
2014-04-30 13:59:34 +02:00
Jakob Unterwurzacher
3569c0351f library: properly handle memory used by tmpfs
tmpfs has become much more widely used since distributions use it for
/tmp (Fedora 18+). In /proc/meminfo, memory used by tmpfs is accounted
into "Cached" (aka "NR_FILE_PAGES",
 http://lxr.free-electrons.com/source/mm/shmem.c#L301 ).

The tools just pass it on, so what top, free and vmstat report as
"cached" is the sum of page cache and tmpfs.

free has the extremely useful "-/+ buffers/cache" output. However, now
that tmpfs is accounted into "cached", those numbers are way off once
you have big files in /tmp.

Fortunately, kernel 2.6.32 introduces "Shmem", which makes tmpfs memory
usage accessible from userspace (
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4b02108ac1b3354a22b0d83c684797692efdc395 ).

This patch substracts Shmem from Cached to get the actual page cache
memory. This makes both issues mentioned above disappear. For older
kernels, Shmem is not available (hence zero) and this patch is no-op.

Additionally:
* Update the man pages of free and vmstat to explain what is happening
* Finally drop "MemShared" from the /proc/meminfo parser, it has been
  dead for 10+ years and is only causing confusion ( removed in kernel
  2.5.54, see
  https://git.kernel.org/cgit/linux/kernel/git/tglx/history.git/commit/?id=fe04e9451e5a159247cf9f03c615a4273ac0c571 )
2014-02-27 14:07:10 +01:00
Craig Small
5a34ff0a99 Check for presence of disks in vmstat
vmstat -d or vmstat -p would crash mysteriously under different
circumstances. The problem was eventually tracked down to /sys not
being mounted which meant is_disk() always returned false.
The partition would then be attempted to be linked to a non-existent
disk causing a segfault.

vmstat will now not link to a disk if none exists.
The change in testing will skip those tests when /sys/block doesn't
exist.

Many thanks to Daniel Schepler for his analysis and suggestions.

Bug-Debian: http://bugs.debian.org/736628
2014-01-29 22:22:11 +11:00
Jaromir Capik
ae9676a337 library: skip replacement of trailing '\0' in read_unvectored()
Under some circumstances the ksh shell doesn't fork new processes
when executing scripts and the script is interpreted by the
parent process. That makes the execution faster, but it means
ksh needs to reuse the /proc/PID/cmdline for the new script name
and arguments while the file length needs to stay untouched.
The fork is skipped only when the new cmdline is shorter than
the parent's cmdline and the rest of the file is filled
with '\0'. This is perfectly ok until we try to read the cmdline
of such process. As the read_unvectored() function replaces
all zeros with chosen separator, these trailing zeros are replaced
with spaces in case of the ps tool. Consequently it appends
multiple spaces at the end of the arguments string even when these
zeros do not represent any separators and therefore shouldn't
be replaced.
With this commit the read_unvectored() function skips the
replacement of trailing zeros and separates valid content only.

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1057600
2014-01-24 18:32:20 +01:00
Jaromir Capik
38cbeedeb7 library: fixing uninitialized variable 'pos' in whattime.c 2014-01-02 18:21:31 +01:00
Craig Small
85fff468fa Update the library version to 3:0:0
We have had some API changes which means the library version needs to
be incremented.
2013-12-03 22:16:18 +11:00
Jim Warner
583cdaca1a library: normalize recently added namespaces interface
While 'invisible' thread subdirectories are accessible
under /proc/ with stat/opendir calls, they have always
been treated as non-existent, as is true with readdir.

This patch trades the /proc/#/ns access convention for
the more proper /proc/#/task/#/ns approach when thread
access is desired. In addition some namespace code has
been simplified and made slightly more efficient given
the calloc nature of proc_t acquisition and its reuse.

Reference(s):
commit a01ee3c0b3

Signed-off-by: Jim Warner <james.warner@comcast.net>
2013-11-25 20:57:32 +11:00
Craig Small
71305c095a Fix integer overflow in getstat()
Merge request 16
2013-09-11 21:57:10 +10:00
Craig Small
dd6f24dbed Merge commit 'refs/merge-requests/13' of git://gitorious.org/procps/procps into merge-requests/13
Conflicts:
	pgrep.c
	ps/output.c
	ps/ps.1
2013-09-11 21:34:05 +10:00
Craig Small
5e4d9d5a92 Merge commit 'refs/merge-requests/2' of git://gitorious.org/procps/procps into merge-requests/2
Conflicts:
	uptime.c
2013-09-11 20:50:48 +10:00
Adrian Brzezinski
13f20a4811 free: reusing 'shared' for Shmem
Previously the shared memory column was always zero
for 2.6 series kernels (and later) due to the fact,
that the value was taken from the MemShared entry
that disappeared with 2.6 series kernels.
Later a new Shmem entry appeared in the /proc/meminfo
file and the 'shared' column now displays either
the MemShared or the Shmem value (depending on their
presence - the presence is mutually exclusive).
If none of the two entries is exported by the kernel,
then the column is zero.
2013-09-09 16:54:00 +02:00
Jaromir Capik
827fc0302e free: clarification of credits for the Shmem support
An unpleasant thing happened when I comitted the shmem support
for the 'free' tool. We already had a merge request from
Adrian Brzezinski in the queue, doing exactly the same.
As Adrian deserves credits, I'm reverting the change
and re-applying with the next commit in order to make
him a part of the project history.
2013-09-09 16:54:00 +02:00
Jaromir Capik
9315d00f01 free: reusing 'shared' for Shmem
Previously the shared memory column was always zero
for 2.6 series kernels (and later) due to the fact,
that the value was taken from the MemShared entry
that disappeared with 2.6 series kernels.
Later a new Shmem entry appeared in the /proc/meminfo
file and the 'shared' column now displays either
the MemShared or the Shmem value (depending on their
presence - the presence is mutually exclusive).
If none of the two entries is exported by the kernel,
then the column is zero.
2013-08-07 18:21:43 +02:00
Vadim Ushakov
5c9c7c8b1f Fix overflow of "running" value in getstat()
It seems in some cases procs_running field of /proc/stat can contain 0 even if vmstat itself is running. At least this can be reproduced on Linux 3.9.3 compiled with BFS scheduler.

Since getstat() decrements value of procs_running by 1, we get overflow:

$ vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 0  0 667732 918996  57376 911260   21   30    36    40   98   45 14 82  4  1
 4294967295  0 667728 916716  57376 911264    8    0     8     0 1958 3733 28  7 65  1
 0  0 667700 915996  57376 911416   24    0   152     0 1735 3600 23  5 71  1
 4294967295  0 667700 915872  57376 911392    0    0     0     0 1528 3165 21  4 76  0
2013-06-11 12:09:05 +08:00
Craig Small
ce0539ecac 3.3.8 NEWS and API
NEWS mentions systemd unit support for ps

Library REVISION (internal change only) incremented

Signed-off-by: Craig Small <csmall@enc.com.au>
2013-05-26 08:03:01 +10:00
Markus Mayer
a6c7923106 Fix btime handling reading from /proc/stat
Function getbtime() currently makes the assumption that btime==0 equals
btime not being present in /proc/stat. This is not quite accurate, as
timestamp 0 is, in fact, also a valid time (Epoch), and /proc/stat may
report it as such.

We introduce a flag to indicate whether btime was found in /proc/stat.
In this way, btime==0 becomes a valid case, provided /proc/stat
actually reports this as the boot time.

procps can still detect the case of btime actually not being reported
by the kernel.

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
2013-05-12 07:17:07 +10:00
Jim Warner
95d0136281 library: dynamic buffer management even more efficient
One recent patch to dynamic buffer management involved
over-allocating the buffer increase to lessen calls to
xrealloc. That was successful, but the actual increase
amount did not attempt to optimize size or alignments.

With this commit, we'll copy an approach recently used
by the top program and round up buffer sizes to 1 KiB.
More importantly, while buffers are quickly reaching a
KiB optimum multiple, no memcpy will ever be employed!

To illustrate just how effective top's algorithm would
be, just change the initial and subsequent allocations
from the current 1024 bytes to just a single byte then
add an fprintf.  Those one byte reallocations while on
the way to optimum buffer size will be a one-time cost
and won't represent any recurring performance penalty.

( gosh, that top program *must be* one fart smeller, )
( or was that a smart feller, i can't remember which )

Reference)s):
commit 6d605f521c
commit a45dace4b8

Signed-off-by: Jim Warner <james.warner@comcast.net>
2013-04-24 08:29:22 +10:00
Aristeu Rozanski
a01ee3c0b3 procps: add support for linux namespaces
Each process in Linux has a /proc/<pid>/ns directory which contains
symbolic links to pipes that identify which namespaces that process
belongs to. This patch adds support for ps to display that information
optionally.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
2013-04-16 15:05:21 -04:00
Jim Warner
7888f6a679 miscellaneous: clean up trailing whitespace once again
An earlier commit attempted to cleanse our environment
of all useless trailing whitespace. But the effort did
not catch 'empty' lines with a single space before ^J.

This commit hopefully finishes off the earlier effort.
In the meantime, let's pray that contributors' editors
are configured so that such wasted crap is disallowed!

Reference(s):
commit fe75e26ab6

Signed-off-by: Jim Warner <james.warner@comcast.net>
2013-04-07 18:05:01 +10:00
Jim Warner
526bc5dfa9 library: avoid SEGV if file2str should read zero bytes
When utility buffers were introduced for file2str read
requests, a subtle change was inadvertently introduced
such that a read of zero no longer returns a -1 value.

This commit ensures that zero bytes read returns a -1.

And although the solution differs from a merge request
submitted by sergey.senozhatsky@gmail.com, a thank you
is offered for revealing this potential abend problem.

References(s):
commit a45dace4b8
http://gitorious.org/procps/procps/merge_requests/11

Signed-off-by: Jim Warner <james.warner@comcast.net>
Signed-off-by: Craig Small <csmall@enc.com.au>
2013-04-07 17:35:49 +10:00
Jim Warner
6d605f521c library: make dynamic buffer management more efficient
When dynamic buffers were recently introduced for read
of the status, stat and statm subdirectories one extra
call to read() was required for end-of-file detection.

This patch avoids most all such extra calls to read().

Additionally, the frequency of memory reallocations is
reduced by overallocating each increase more than 25%.

Reference)s):
commit a45dace4b8

Signed-off-by: Jim Warner <james.warner@comcast.net>
Signed-off-by: Craig Small <csmall@enc.com.au>
2013-04-07 17:35:49 +10:00
Craig Small
fc503b442d Update library version-info to 2.1.1
Internal changes to libproc means the revision number
is incremented. This does not mean an ABI or API change has
occured, we just do the stuff under the covers better or in this
case reduce the compile warnings mainly.

See Jim, I do read the commit messages :)
2013-03-26 21:41:55 +11:00
Gilles Espinasse
a75f698977 procps-ng : fix readproc gnu_scanf format warnings
readproc.c: In function 'stat2proc' :
readproc.c:516: warning: use of assignment suppression and length modifier together in gnu_scanf format
readproc.c:516: warning: use of assignment suppression and length modifier together in gnu_scanf format

Signed-off-by: Gilles Espinasse <g.esp@free.fr>
2013-03-26 20:53:35 +11:00
Gilles Espinasse
46e47a527f procps-ng : fix multi-line comment warnings
slab.c:110:1: warning: multi-line comment
slab.c:115:1: warning: multi-line comment
slab.c:122:1: warning: multi-line comment
slab.c:127:1: warning: multi-line comment

Signed-off-by: Gilles Espinasse <g.esp@free.fr>
2013-03-26 20:51:37 +11:00
Jim Warner
a45dace4b8 library: utility buffers now immune to buffer overflow
A recent Debian bug report, dealing with release 3.2.8
and its even more restrictive buffer sizes (1024) used
in stat, statm and status reads via file2str calls, is
a reminder of what could yet happen to procps-ng. Size
needs are determined by kernel evolution and/or config
options so that bug could resurface even though buffer
size is currently 4 times the old procps-3.2.8 limits.

Those sizes were raised from 1024 to 4096 bytes in the
patch submitted by Eric Dumazet, and referenced below.

This patch makes libprocps immune to future changes in
the amount of stuff that is ultimately found in a proc
'stat', 'statm' or 'status' subdirectory. We now trade
the former static buffer of 4096 bytes for dynamically
allocated buffers whose size can be increased by need.

Even though this change is solely an internal one, and
in no way directly affects the API or the ABI, libtool
suggests that the LIBprocps_REVISION be raised. I hope
Craig remembers to do that just before a next release.

We don't want a repeat of the procps-ng-3.3.4 boo-boo,
but with no API/ABI impact that probably can't happen.

p.s. A big thanks to Jaromir Capik <jcapik@redhat.com>
who reviewed my original version and, of course, found
some of my trademark illogic + unnecessary code. After
his coaxing, he helped make this a much better commit.

Reference(s):
. procps-3.2.8
http://bugs.debian.org/702965
. allow large list of groups
commit 7933435584

Signed-off-by: Jim Warner <james.warner@comcast.net>
Reviewed by:   Jaromir Capik <jcapik@redhat.com>
2013-03-23 16:00:02 +01:00
Jim Warner
fac3b34ff9 miscellaneous: fixed current misspell-check's findings
Reference(s):
https://github.com/lyda/misspell-check

Signed-off-by: Jim Warner <james.warner@comcast.net>
2013-03-14 12:36:47 +01:00
Jim Warner
fe75e26ab6 miscellaneous: clean up trailing whitespace throughout
The entire tree's polluted with inappropriate trailing
whitespace. This commit rids our environment of all of
those useless keystrokes. Unfortunately, it sure ain't
a permanent solution and requires every contributor to
instruct their editor(s) to prevent or eliminate them.

Plus it's strongly recommended we all insert something
like what's shown below to our '.gitconfig' file so as
to provide at least some warnings when we try to apply
any patches (git am) that do contain the #@!%& things!

References(s):
~/.gitconfig excerpt ---------------------------------
[core]
  whitespace = trailing-space, space-before-tab, blank-at-eof
[apply]
  whitespace = warn
--------------------------------- ~/.gitconfig excerpt

Signed-off-by: Jim Warner <james.warner@comcast.net>
2013-03-14 12:36:47 +01:00
Craig Small
f7c418155a Expose freeproc for libproc
freeproc was missing from the libproc API which meant while you could
allocate proc structures, you couldn't free them!

Bug-Debian: http://bugs.debian.org/681653
2013-01-01 13:13:44 +11:00
Sami Kerola
c043c47ddd pmap: use correct types for memory allocation
Fixes error which did not happen always.  Changes of being affected by
the bug where greater the more there where pids defined as pmap argument.
The debian bug referral can almost certainly reproduce the problem,
especially when tried multiple times in row.

pmap: malloc.c:3096: sYSMALLOc: Assertion `(old_top == (((mbinptr)
(((char *) &((av)->bins[((1) - 1) * 2])) - __builtin_offsetof (struct
malloc_chunk, fd)))) && old_size == 0) || ((unsigned long) (old_size) >=
(unsigned long)((((__builtin_offsetof (struct malloc_chunk,
fd_nextsize))+((2 * (sizeof(size_t))) - 1)) & ~((2 * (sizeof(size_t))) -
1))) && ((old_top)->size & 0x1) && ((unsigned long)old_end & pagemask) ==
0)' failed.

Reported-by: lee <lee@yun.yagibdah.de>
Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688180
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-11-06 22:22:11 +11:00
Craig Small
0c74162049 Bump the soname 2012-10-30 21:34:40 +11:00
Eric Dumazet
7933435584 ps: allow large list of groups
Current linux kernels output no more than 32 groups
in /proc/{pid}/status.

Plan is to increase this limit.

This patch allows ps to not core dump if the buffer used to read status
file was too small.

# ps aux
Signal 11 (SEGV) caught by ps (procps-ng version 3.3.3).
ps:display.c:59: please report this bug

Also increases the size of the buffer from 1024 to 4096, since even with
32 groups we are close to the limit.

cat /proc/12731/status | wc
     39     128     961

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
2012-10-24 21:43:37 +11:00
Jim Warner
6c8e9d9581 library: fix proc_t page fault delta counts alignment
When the maj_delta and min_delta fields were added to
the proc_t, they necessitated some compiler generated
padding bytes.

With this slight reordering, those padding bytes are
no longer generated.  And since the original commit
already broke the library ABI, now is an opportune
time to correct that misalignment.

Reference:
commit 7753bd1004

Signed-off-by: Jim Warner <james.warner@comcast.net>
2012-10-02 20:56:39 +10:00
Dimitrios Apostolou
faec340719 Two new options for pmap, -X and -XX
Both options provide more information about a process using -X and -XX
flags. The data comes from /proc/PID/smaps so it may vary.

Signed-off-by: Craig Small <csmall@enc.com.au>
2012-09-27 22:08:04 +10:00
Jim Warner
7753bd1004 library: adapt proc_t for top 'page fault delta' counts
Signed-off-by: Jim Warner <james.warner@comcast.net>
2012-08-29 17:37:11 +10:00
Jim Warner
348e6091cb library: add a single vector string choice for 'environ'
In preparation for top scrollable environment display,
the new flag PROC_EDITENVRCVT was added to mirror the
existing single vector string handling for cgroup and
cmdline.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2012-08-29 17:34:54 +10:00
Jim Warner
f4666e1743 library: lift 1024 byte restriction on control groups
The control group hierarchies for any particular task
could conceivably grow quite large.  However, the
library might impose an arbitrary limit of 1024 bytes
via fill_cgroup_cvt.

Two utility buffers of 128 KiB each were already
available for command line use.  This commit simply
trades the smaller 1024 byte stack based buffers for
those much larger existing ones.  Thus, truncation
can be avoided with no additional run-time costs.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2012-08-29 17:27:50 +10:00
Jim Warner
8b64b36bbf library: standardize handling of cgroup, supgid
Some inconsistencies have emerged during development
of support for these relatively new proc_t fields.

For example, a PROC_FILLCGROUP flag (via file2strvec)
could return NULL in cgroup whereas PROC_EDITCGRPCVT
(via fill_cgroup_cvt) *almost* guaranteed a return
address (as is true for PROC_EDITCMDLCVT and cmdline).
But even PROC_EDITCGRPCVT could return NULL if the
kernel version was less than 2.6.24.  Then with NULL
ps would display a "-" while top would show "n/a".

And while unlikely, with the PROC_FILLSTATUS flag (via
status2proc) a NULL supgid address was theoretically
possible and both ps and top would then show "n/a".

This commit standardizes the following usage:
  . PROC_FILLSTATUS         (via status2proc)
      guarantees a valid supgid address
      representing either a true comma
      delimited list or "-"
  . PROC_FILLCGROUP  plus
    PROC_EDITCGRPCVT        (via fill_cgroup_cvt)
      guarantees a cgroup single vector
      representing either a true control
      group hierarchy or "-"

And as was true before, the following remains true:
    PROC_FILLCOM     or
    PROC_FILLARG            (via file2strvec)
      may return a NULL cmdline pointer
  . PROC_FILLCGROUP         (via file2strvec)
      may return a NULL cgroup pointer
  . PROC_FILLCOM     or
    PROC_FILLARG     plus
    PROC_EDITCMDLCVT        (via fill_cmdline_cvt)
      guarantees a cmdline single vector
      representing either a true command
      line or a bracketed program name
  . PROC_FILLSTATUS  plus
    PROC_FILLSUPGRP         (via supgrps_from_supgids)
      guarantees a valid supgrp address
      representing either a true comma
      delimited list or "-"

Signed-off-by: Jim Warner <james.warner@comcast.net>
2012-08-29 17:26:13 +10:00
Craig Small
06dc80d3b3 Increase slab name from 64 to 128 characters
There soon will be slab types per cgroup meaning the name of the slab
will have the cgroup name in parathensis after the slab name.  This
minor change increases the slab name size to cater for this.

Signed-off-by: Craig Small <csmall@enc.com.au>
2012-06-26 22:01:42 +10:00
Steven Chamberlain
a5ba6b98c1 Description: fix to build on non-Linux arches
Fix the build where it seems a code fix for Linux was likely untested
on other systems.
Define SCHED_BATCH in test-schedbatch, for systems that don't have it;
the corresponding RH BZ#741090 patch used the magic value 3 in output.c
anyway.

Bug-Debian: http://bugs.debian.org/677055
2012-06-11 22:11:23 +10:00
Michael Schwendt
dd87e4f48c libprocps: protect locale environment getting overwrite
The problem is that in ./proc/sysinfo.c uptime(), it is not
considered that the "savelocale" string is overwritten by the
subsequent call to setlocale().  Hence restoring the locale later on
won't work this way.  "savelocale" ought to be a copy of the string
pointed to by setlocale()'s return-value.

Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=548711
Backported-by: Sami Kerola <kerolasa@iki.fi>
2012-04-25 09:34:41 +10:00
Jaromir Capik
0f6b289212 license: update FSF addresses
The license files are synchronized with the versions from GNU web
site.

http://www.gnu.org/licenses/gpl-2.0.html
http://www.gnu.org/licenses/old-licenses/lgpl-2.0.html

Signed-off-by: Jaromir Capik <jcapik@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Jim Warner <james.warner@comcast.net>
2012-03-04 08:04:24 +11:00
Craig Small
7e1657db48 Increase library revision number
There have been some internal changes to the library, so the revision
will be incremented for this release. There is no ABI or API changes
so its no real impact.
2012-03-03 18:47:40 +11:00
Sami Kerola
ce61089059 docs: clarification to license headers in files
Add license header to all files.  The summary of licensing is below,
taken from Craig Small's email which is referred in commit message
tail.

sysctl and pgrep are GPL 2+
The rest is LGPL 2.1+

Reference: http://www.freelists.org/post/procps/Incorrect-FSF-address-in-the-license-files,8
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=797962
CC: Craig Small <csmall@enc.com.au>
CC: Jaromir Capik <jcapik@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-03-03 18:41:11 +11:00
Craig Small
563dd2c5f1 Fix string literals in fprintf and friends
Both these are from [-Werror=format-security]
sig.c:262:5: error: format not a string literal and no format arguments
global.c:517:3: error: format not a string literal and no format arguments
2012-03-03 12:05:07 +11:00
David Cantrell
3e7f78d296 Add -p|--pretty option to uptime(1) for pretty output.
This patch adds the -p option to the uptime(1) command, which changes
the uptime displayed from something like:

 10:35:52 up  2:33,  1 user,  load average: 1.69, 1.65, 1.63

to:

 up 2 hours, 33 minutes

I originally implemented this as the up(1) program about 14 years ago.
In 2008 or 2009, I created a patch for procps to add this functionality
to uptime and submitted it to the project.  Never heard from the
project and no new releases of procps had been made.  Then I found out
about this project and decided to port my patch to it.  So here it is.

This is really just for fun.  There is no real technical reason to
have this functionality.  But even now, 14 years later, I still get
emails asking where the source code for up is.  So I thought it would
be nice for the uptime command on Linux to sport the up functionality
by default.
2012-02-22 10:35:12 -05:00
Sami Kerola
79d163568b libprocps: remove linux 2.7.0 check
Checking for linux kernel version 2.7.0 is meaningless now when 3.0.0
is out.

Reported-By: Christian Hofstaedtler
Bug-Debian: http://bugs.debian.org/635553
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-02-11 21:44:29 +01:00
Sami Kerola
bc6b99e8ff libprocps: open file should be closed, not freed
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-02-06 17:37:11 +01:00
Sami Kerola
ea221b4e42 libprocps: hide private symbols
Clean the global list of symbols contain only functions and variables which
are being called from library.  The removed symbols are internal for the
library, which means they can be changed without changes to programs using
the library.  This clean up should help incoming libprocps clean up work.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-01-24 21:54:01 +01:00
Mike Frysinger
2b449855c7 proc: pull in ctype.h where needed
Fix the build warnings:

sig.c:227:5: warning: implicit declaration of function 'toupper' [-Wimplicit-function-declaration]
sig.c:231:3: warning: implicit declaration of function 'isdigit' [-Wimplicit-function-declaration]

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-01-24 08:55:05 +01:00
Mike Frysinger
afaf698896 use helpers from c.h
A few files still use the C library helpers from err.h, so migrate
them to the local c.h helpers.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-01-24 08:55:05 +01:00
Craig Small
3c2377ca15 Linux version for non-linux systems
On non-linux systems, uts.version provides the version of that
specific kernel (FreeBSD or Hurd version, for example) and not the
emulated procfs pseudo version.

On those systems we need to directly read /proc/version and parse the
string.  This change replaces Debian patches gnu-kbsd-version and
complain_unmounted_proc patches.
2012-01-09 21:57:44 +11:00
Craig Small
a909f6e917 Change restrict to __restrict in public includes
procps automake defines restrict which means the binaries for procps
binaries compile. However external programs may not of defined
restrict which means they will not complie if they include files found
in /usr/include/proc.

Includes from libc6 use __restrict and if is good enough for
them, its good enough for us.
2012-01-09 21:44:51 +11:00
Jim Warner
3388f65c03 build-sys: correct all Makefile.am files for LOCALEDIR, etc
Some of the latest changes to Makefile.am files are missing.

This patch restores the LOCALEDIR variable, among others,
and dispenses with the include directives in the ps/ and top/
subdirectories since they're no longer needed.
2012-01-04 08:58:54 +11:00
Craig Small
fb11e1fe0a Changed the err and warns to macros
err and warn are BSD format but they are not recommended by library
developers.  However their consiseness is useful!

The solution is to use some macros that create xerr etc which then
just map to the error() function.  The next problem is error() uses
program_invocation_name so we set this to program_invovation_short_name

This is a global set but seems to be the convention (or at least errors
are on the short name only) used everywhere else.
2012-01-03 18:48:43 +11:00
Jim Warner
131f935c49 build-sys: re-enable 'dist' build
The 'build-sys: re-enable out of tree build' commit
failed to also address the 'dist' target errors.
2012-01-02 16:27:18 +11:00
Craig Small
a99002e3fe Merge branch 'master' into nls
Conflicts:
	configure.ac
	pmap.c
	ps/Makefile.am
2011-12-26 09:11:27 +11:00
Craig Small
2983b30523 Renaming libprocfs to libprocps
The library used to be called libprocps but it was renamed to make sure
there was only one. However the formatting of the library SONAME has
changed so there cannot be any confusion.

libprocps makes it clear that its a library from this project and not a
set of functions directly on the filesystem.
2011-12-23 09:18:43 +11:00
Sami Kerola
8b8149ba60 skill: use strtosig() for -l option argument
Re-enable signal number to name string, and other way around,
conversion after it broke at the time when long options where
introduced.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:30:53 +01:00
Sami Kerola
94bbf63140 libproc-ng: add strtosig() function
The function will convert a signal number string to a signal name, or
vice a verse.  Return value is string, which is an function user is
expected to free after use.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:30:53 +01:00
Sami Kerola
9057b18a32 libproc-ng & ps: fix warning reported by smatch
proc/ksym.c +279 read_file(54) info: redundant null check on buf calling free()
proc/ksym.c +330 parse_ksyms(41) info: redundant null check on ksyms_data calling free()
proc/ksym.c +332 parse_ksyms(43) info: redundant null check on ksyms_index calling free()
proc/ksym.c +451 sysmap_mmap(110) info: redundant null check on sysmap_index calling free()
proc/procps.h:74:5: warning: undefined preprocessor identifier 'SHARED'
proc/slab.c +145 parse_slabinfo20(24) error: potential null derefence 'prev'.
proc/slab.c +222 parse_slabinfo11(21) error: potential null derefence 'prev'.
ps/stacktrace.c +131 debug(6) error: snprintf() is printing too much 99 vs 16

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:30:50 +01:00
Sami Kerola
c1fa3bfce8 misc: compiler warning fixes
Fix few compiler warnings. Some of these warnings appeared multiple
times, and the listing bellow is more about which sort of errors
where fixed.

devname.c:87:12: warning: comparison of integers of different signs: 'int' and 'unsigned long'
output.c:389:36: warning: passing 'char **const' to parameter of type 'const char *const restrict *' discards qualifiers in nested pointer types
output.c:611:31: warning: comparison of integers of different signs: 'const unsigned long' and 'int'
stacktrace.c:33:37: warning: unused parameter 'signum'

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:30:50 +01:00
Sami Kerola
922d218e1e include/devname.h: add missing header
The devname.h requires readproc.h header which has dev_t. Unless
header is included the includes in program files must be in
correct order. I also added FIXME item to remind that for uid &
gid value int not correct data type but uid_t or gid_t from
pwd.h.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:17:02 +01:00
Craig Small
2865ded64e Removed xalloc type functions from library
These xalloc functions are a private function for the library. If using
programs need them, then they should make their own error reporting or
use a common file.
2011-12-20 22:56:17 +11:00
Michael Tokarev
04ce4db830 vmstat: do not scale si/so just like bi/bo
Use strtoull insteadof strtoul for some counters.

A patch from Debian.

Bug-Debian: http://bugs.debian.org/558361
Bug-Debian: http://bugs.debian.org/558134
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 22:54:20 +11:00
David Fries
3cea313cf3 libprocps-ng: sysinfo.c: truncate the vmstat figure to 32 bits
A patch from Debian.

Bug-Debian: http://bugs.debian.org/620557
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 22:53:59 +11:00
Craig Small
16329a7c3c libprocps-ng: readproc.c: some type conversion help
Return if unable to open /proc

A patch from Debian.

Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 22:50:40 +11:00
Daniel Novotny
5d29bfedc8 pwdx & libprocps-ng: Hurd does not have MAX_PATH defined
A patch from Debian.

Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=485243
Bug-Debian: http://bugs.debian.org/588677
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 22:30:00 +11:00
Armin van Buuren
90b201f1f4 libproc-ng: prettyfy proc mount messages
A patch from Gentoo.

Bug-Gentoo: https://bugs.gentoo.org/138029?id=138029
Bug-Gentoo: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-process/procps/files/procps-3.2.7-proc-mount.patch?revision=1.1&view=markup
Bug-Gentoo: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-process/procps/files/procps-3.2.7-proc-mount.patch?revision=1.1&view=markup
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 10:58:02 +11:00
unknown
fe82a3246a ps: add build option to disable ps option warning
Slackware seems to have this patch, while it is not in use(?) Well,
the upstream procps-ng allows one to disable warnings if that is
wanted. After all having this sort of 'feature' does not cost much,
while lacking it might annoy someone.

A patch from Slackware.

Reference: http://www.ftp.be/packages/slackware/slackware_source/a/procps/procps.nowarning.diff.gz
Backported-by: Sami Kerola <kerolasa@iki.fi>

Conflicts:

	proc/ksym.c
2011-12-18 10:53:44 +11:00
Hamish Moffatt
86fe50d179 libproc-ng: support building without WCHAR support
The uClibc might not have wchar.

A patch from Buildroot.

Reference: http://git.buildroot.net/buildroot/tree/package/procps/procps-wchar.patch?id=fc333e7d083d144e0f8d1c4bac061b8de2ee7510
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 10:36:07 +11:00
Craig Small
2019cbfded forgot to change the interface name for sym file 2011-12-17 22:38:19 +11:00
Craig Small
38763ede40 Rename library and use proper versioning
Previously the version of libproc always tracked the version of procps.
This doesn't work when other non-procps programs link to the library as
they are always playing catch up.

This change makes the library version independent of the procps version.
It will only be incremented when needed.
2011-12-17 22:35:05 +11:00
Jim Warner
c3a1239efe library: once again properly ignore a final empty cgroup
Commit a5881b5a4e, addressing
command lines with a trailing space, produced an undesirable
side effect in the fill_cgroup_cvt() function.

This patch restores correct cgroup behavior while still
producing command lines with no trailing space.
2011-12-14 23:02:51 +11:00
Jim Warner
e048aa0e7e library: eliminate one redundant 'extern' qualifier 2011-12-11 22:27:19 +11:00
Jim Warner
a5881b5a4e library: create cmdlines consistently with no trailing space
When PROC_FILLARG was used (invoking file2strvec)
command lines contained no trailing space.

When PROC_EDITCMDLCVT was used (invoking read_unvectored)
command lines contained a trailing space.

Now both routes to a cmdline act the same -- no trailing space.
2011-12-11 22:27:12 +11:00
Jim Warner
ed59472307 library: provide for huge cmdlines, like old libproc
The CodingStyle document suggests programs should allow for
cmdlines of at least 128k.  Only the ps program can display
such a cmdline, and only with multiple -w switches.

The library function file2strvec can essentially return
a cmdline of unlimited length.  However, the library function
fill_cmdline_cvt used an arbitrary upper limit of 2048 for
buffers automatically allocated on the stack.

This patch raises the fill_cmdline_cvt upper limit to 128k via
dymaically acquired utility buffers ensured by the openproc
function.

It also makes indentation consistent in the openproc function.
2011-12-11 22:27:06 +11:00
Jim Warner
827334870d library: exploit enhanced library memory allocation provisions
There were numerous library memory allocation inconsistencies.
Some were checked for failure and others were not.

All library source modules were modified to utilize the alloc.h
memory rouines which are consistent in dealing with errors.
2011-12-11 22:26:55 +11:00
Jim Warner
7126cc4491 library: expanded/generalized memory allocation provisions
A callback provision in the form of xalloc_err_handler
(of type message_fn) was added to the alloc module.

This change allowed a program like top, who alters the
termios structure, to override the default fprint(stderr...)
behavior in the event of an error.

The new function xstrdup was also added for symmetry.
2011-12-11 22:26:49 +11:00
Sami Kerola
3f42de1432 build-sys: add symbol map file to autotools distribution
The file became necessary in
commit 901e381256

Signed-off-by: Sami Kerola <sami.kerola@tomtom.com>
2011-11-29 22:57:17 +11:00
Craig Small
20463f1a13 vmstat -p <part> works and updated version to 3.3.1
configure.ac now set to 3.3.1
vmstat -p has not worked for a long time, this applies Debian patch
vmstat_part_format, the details:

Author: Daniel Novotny
Description: The contents of /proc/diskstats have changed since 2.6.25
 Changed PATH_MAX to 32 because its missing on hurd
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=485243
Bug-Debian: http://bugs.debian.org/588677
Last-Update: 2010-11-17
2011-11-27 22:47:17 +11:00
Sami Kerola
64b420936e libproc-ng: add pkg-config support
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-11-05 14:13:40 +01:00
Sami Kerola
901e381256 libproc-ng: fix ld version script file support
Notice that contents of file library.map file are almost certainly
wrong as it is making everything exported.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-11-05 13:29:54 +01:00
Craig Small
e383fe2622 Merge branch 'master', remote-tracking branch 'sami/ng' 2011-10-20 22:15:27 +11:00
Jim Warner
8f3303e4d8 redhat analysis: proc/sig 2011-10-15 08:26:27 +02:00
Jim Warner
0ebe397345 redhat analysis: proc/slab 2011-10-15 08:26:27 +02:00
Jim Warner
b49055e657 redhat analysis: proc/sysinfo 2011-10-15 08:26:27 +02:00
Jim Warner
4820619f15 redhat analysis: proc/readproc 2011-10-15 08:26:27 +02:00
Craig Small
13ce6ebdf0 Use 7 cpu numbers not 4 for Hertz Hack
For the small number of devices that we cannot get Hertz out of ELF
notes but the cpu numbers make sense (ie not kFreeBSD) there is a hack
by using the CPU numbers. The problem is there was 4 numbers, now there
are 7. This fixes the hack by adding all 7 to get a more correct number.

This is from Debian patch sysinfo_7_numbers
Bug-Debian: http://bugs.debian.org/460331
2011-10-07 14:35:16 +11:00
Craig Small
a5750100a0 Fix Hertz calculation for FreeBSD
FreeBSD has no good way of finding the Hertz value. ELF notes don't
work, you can't find it in a function and even asm/params.h does
not have it.  Lucky for us, it is always 100.

Based upon Debian patch patch sysinfo_kfreebsd_hertz by Petr Salinger
Bug-Debian: http://bugs.debian.org/460331
Caution, 460331 has lots of overlapping bugs all around the Hertz
problem across many arches.
2011-10-07 10:22:24 +11:00
Craig Small
aae3d318d4 Elf note AT_CLKTCK is only found on Linux
Suppresses a message about elf notes not found on non-Linux systems.
kFreeBSD systems, for one, don't have this so the message appears
every time you run a procps program otherwise.

Based upon Debian patch sysinfo_elfnote by Petr Salinger
Bug-Debian: http://bugs.debian.org/378157
2011-10-07 10:08:42 +11:00
Craig Small
b9a408372e Merge branch 'master', remote-tracking branch 'sami/ng' 2011-10-01 23:23:30 +10:00
Craig Small
f7fb8bddf4 miscellaneous top and library cleanup
top changes
 . refined column header width calculations
 . added error messages for:
     invalid signal ('k')
     invalad max tasks ('n')
 . corrected narrative for summary_show

library changes
 . corrected some comments (only)
2011-09-25 00:27:37 +10:00
Jim Warner
b7638e7ae9 build-sys: rename libproc to libprog-ng
The library file version string is taken from configure.ac AC_INIT.

Reference: http://www.freelists.org/archive/procps/09-2011

Signed-off-by: Jim Warner <james.warner@comcast.net>
Signed-off-by: Craig Small <csmall-procps@enc.com.au>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-09-23 22:07:15 +02:00
Craig Small
0e6ac0db3e added tgid support plus miscellaneous cleanup
ps
   . added tgid support
   . made process/task naming consistent
 top
   . added tgid support
   . standardized pid related width logic
 documents
   . added tgid to ps & top man documents
 library
   . fixed OOMEM_ENABLE readtask bug
   . corrected header typo for tgid
2011-08-17 21:01:35 +10:00
Craig Small
bb4f08ba29 refined library i/f and improved performance
Library changes
   readproc
    . added readeither to more efficiently
      fill both process and thread proc_t
    . added readproctab3, uses readeither
    . included task path support in:
        fill_cgroup_cvt, fill_cmdline_cvt,
        read_unvectored
    . QUICK_THREADS #define allows copying
      process info vs. repeatedly reading
    . simple_nexttid no longer values ppid
    . path var made non-static in readtask
    . documented 'proc_data_t' in .h file
    . tweaked some c comments & formatting
   library.map
    . added new readeither, readproctab3
 Program changes
   ps
    . exploits readproctab3 where possible
    . improved args/comm compliance
   top
    . exploits readeither
2011-08-11 07:42:14 +10:00
Craig Small
3ef4823f90 supgid/supgrp support, improved library interface
Library changes
   readproc
    . added support for supplementary groups
    . eliminated 2 potential mem leak sources
       . shortcut used for multi-threaded str
         vectors & ptrs was obsoleted
       . freeing of proc_t related dynamic
         memory now rests with the library
    . standardized/normalized many c comments
   sysinfo
    . corrected note regarding glibc & cpuinfo
   library.map
    . made the visible freeproc accessable
 Program changes
   pmap
    . initialized buffer for new readproc i/f
    . eliminated now obsolete free() call
   ps
    . added width aware supgrp support
    . initialized buffers for new readproc i/f
    . eliminated now obsolete free() calls
   top
    . added supgrp support as variable width
    . eliminated now obsolete free() calls
    . expoilted library freeproc function
    . corrected -h|v args text & spacing
    . updated some c comments
 Documentation changes
   ps.1
    . added supgid and supgrp
   top.1
    . added supgid and supgrp
    . addition of above required renumbering
      many fields in section 3a. DESCRIPTIONS
2011-08-01 21:28:46 +10:00
Craig Small
a26c3bfa39 top hotplug memory support
Another patch from Jim for top to support hot-pluggable memory. Not
fully tested on real hot-pluggable memory because neither of us have
it
2011-07-14 21:16:02 +10:00
Jim Warner
16f8bc685f miscellaneous library documentation changes
Library changes
  . standardized comments in proc_t statm/status memory definitions

Signed-off-by: Jan Görig <jgorig@redhat.com>
2011-06-23 15:39:32 +02:00
Jaromír Cápík
f2e4b9f601 Kernel 3.0 version format support 2011-06-20 17:54:06 +02:00
Sami Kerola
71d10d3a49 name change: procps -> procps-ng
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-06-04 20:50:12 +02:00
Sami Kerola
33fb22b169 proc/sysinfo.c: autotools caused a regression
For some reason necessary variable was commented out at June
2003, see commit bellow for details.

commit 5c99a21b72

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-06-04 17:22:44 +02:00
Sami Kerola
68c73c864c proc/version.c: use autotools version
The old version output does not work, or make sense, after
autotools are in use again.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-06-04 17:22:44 +02:00
Sami Kerola
06d491f9e4 build-sys: take autotools in use again
This will revert change at Oct 2002 when autotools support was
removed.

Unlike before the package developers are expected to use
./autogen.sh to generate ./configure script, and run make after
that. The build system is also able to create, with make dist, a
tar ball release which compiles correctly, and has files which
seemed to be important to have.

The patch removes few unnecessary files, but no everything. Files
procps.lsm and procps.spec in git repository are useless as is,
but I left them lying around for someone who can make more
justified call about removal of them.

Last, but not least package version number is set 3.3.0 to
distinct this procps from the sourceforge's upstream procps.
Please notice that libproc relese is kept as 3.2.8.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-06-04 17:22:44 +02:00
Jan Görig
f43de0df19 Added 'vm_swap' variable nullifying.
Thanks to KOSAKI Motohiro.

Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=532668
2011-06-02 12:22:31 +02:00
Jim Warner
7b0fc19e9d enhanced libproc cgroup/cmdline support, exploited by top
Library Changes
. added PROC_EDITCMDLCVT flag
. added an internal (static) fill_cmdline_cvt function:
  - reads and "escapes" /proc/#/cmdline
  - returns result as a single string in a single vector
  - callers are guaranteed a cmdline (no more NULL)
. added vectorize_this_str function, exploited by
  fill_cgroup_cvt, fill_cmdline_cvt
. generalized read_cmdline function as read_unvectored, now
  exploited by fill_cgroup_cvt, fill_cmdline_cvt, read_cmdline
  ( cgroup and cmdline no longer need be converted to string )
  ( vectors before being transformed to final representation )
. fixed bug regarding skipped group numbers (when enabled)
. escape_str made responsible for all single byte translation
  with distinction between control chars + other unprintable
. added escaped_copy function for already escaped strings
. reorganized parts of proc_t to restore formatting standards
  ( displacement changes shouldn't matter with new version # )
. former ZAP_SUSEONLY #define now OOMEM_ENABLE
. added to library.map: escaped_copy; read_cmdline

Top Program Changes
. exploited the new PROC_EDITCMDLCVT provision
. eliminated now obsolete #include "proc/escape.h"
. changed the P_WCH display format if no kernel symbol table
. fixed very old bug in lflgs for out-of-view sort fields
. former ZAP_SUSEONLY #define now OOMEM_ENABLE

Ps Program Changes
. exploited the new PROC_EDITCMDLCVT provision
. exploited the new escaped_copy function
. consolidated pr_args and pr_comm into pr_argcom

Signed-off-by: Jan Görig <jgorig@redhat.com>
2011-05-18 10:33:44 +02:00
Jim Warner
57031319d6 cgroup support migrated to libproc, plus miscellaneous re-formatting
This source patchset addresses the following:
Library Extension (readproc)
 . added PROC_EDITCGRPCVT flag
 . added an internal (static) fill_cgroup_cvt function:
   . reads AND parses /proc/#/cgroup
   . returns result as a single string in a single vector
   . thus no changes to proc_t structure or free memory logic
Program Enhancements (top)
 . removed parse_cgroup logic in favor of libproc
 . eliminated cgroup sort recurring overhead
 . converted WCHAN field to variable width
 . generalized variable width field logic in task_show
 . real-time notation under P col more distinctive as 'rt'
Program Cosmetic (top)
 . CGROUP now known as CGROUPS (plural)
 . moved jan's attribution from top.c to 'Notes' in top.h
 . numerous comments tweaked
Document Enhancements (top)
 . documented CGROUPS field (required renumbering all fields)
 . adapted narratives for the 3 current variable width fields
 . expanded real-time scheduling notes, 'RT' now shown as 'rt'

Signed-off-by: Jan Görig <jgorig@redhat.com>
2011-05-05 12:12:27 +02:00
Werner Fink
aac0de8994 Initialize smp_num_cpus only if really required
Initialize smp_num_cpus only if really required

Signed-off-by: Werner Fink <werner@suse.de>
2011-04-15 15:53:20 +02:00
Werner Fink
e646984924 Add missed oom support to libproc
Add missed oom support to libproc
Signed-off-by: Werner Fink <werner@suse.de>
2011-04-15 15:52:40 +02:00
Jan Görig
887c1b95c5 Removed .cvsignore files 2011-02-10 13:40:29 +01:00
Jan Görig
59679bc2a2 Rewritten cgroup support and suppressed root cgroup
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=593267
Signed-off-by: Jan Görig <jgorig@redhat.com>
2011-02-10 13:40:29 +01:00
Jan Görig
8fde4af11d Call libproc constructors in strict order
Having one constructor depend on another means if the order
is reversed you get a different result.
Patched based on idea by Tom Evans.

Added new code to old_Hertz_hack by Werner Fink <werner@suse.de>

Bug-Debian: http://bugs.debian.org/460331
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=632236
Reviewed-by: Jan Görig <jgorig@redhat.com>
2011-01-19 12:50:26 +01:00
Jan Görig
4d3c19af52 Read the system boot time from /proc instead of computing
Read the time of system boot from /proc/stat (entry: btime) instead
of computing it as the difference between the current time and the
uptime. This is the only way to get a consistent result which won't
possibly change from one run to the next.

The problems with the original code were:
* Both the current time and the uptime are rounded down to the second,
  but the system doesn't boot on an integer second value so they do not
  tick at the same moment. Thus, the rounding errors can cause a one
  second difference from one run to the next.
* We can't read the uptime and the current time at the exact same moment
  anyway, so the time difference we compute is bound to be inaccurate.
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=222251
Author: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Craig Small <csmall@debian.org>
2010-12-16 10:30:39 +01:00
Jan Görig
356a1f9a37 fix the problem with truncated output lines to 2048 characters
Author: Karel Zak <kzak@redhat.com> and Olivier Fourdan <ofourdan@redhat.com>
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=134516
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=487700
2010-12-16 10:24:44 +01:00
Jan Görig
af25453d9a ps displays cgroup
Author: Swann Perarnau <swann.perarnau@imag.fr>
Bug-Debian: http://bugs.debian.org/469669
Reviewed-by: Craig Small <csmall@debian.org>
2010-12-16 10:23:49 +01:00
albert
5f570a84f1 per-process swap info available on Linux 2.6.34 2010-05-18 07:02:03 +00:00
albert
b0210803bf update /dev/tty* info to May 2009 devices.txt 2009-05-03 06:39:33 +00:00
albert
7dd414ac1b new /proc/meminfo fields 2008-03-24 04:41:26 +00:00
albert
9049ffef32 ps man page 2006-09-10 06:25:56 +00:00
albert
0231385023 fix the low_density_names table, maybe 2006-07-09 06:58:39 +00:00
albert
86de01f3d0 Linux 2.6.17 tty devices. Lose support for original pty numbering. 2006-07-09 04:41:30 +00:00
albert
9278134e49 top: show CPU time stolen from a virtual machine 2006-06-25 02:15:36 +00:00
albert
47d33e7ed4 g is criteria 2006-06-24 20:12:29 +00:00
albert
5c591b836f fix "ps sm" bug involving 1-thread-proc optimization 2006-06-17 04:14:57 +00:00
albert
29cbc63561 fputs instead of fprintf 2005-10-30 23:45:47 +00:00
albert
777fcd3cf1 /proc/stat for 1024 CPUs 2005-10-30 00:14:16 +00:00
albert
6a304370f8 ps: fix crash related to realloc -- thanks David Houlder 2005-09-12 03:25:01 +00:00
albert
864a5356a1 fix race condition 2005-06-10 15:43:15 +00:00
albert
cd80f609e6 more MIPS crud 2005-02-28 03:29:57 +00:00
albert
f9d99085e7 crazy Debian GNU/kFreeBSD guy wanted this 2005-01-27 04:08:10 +00:00
albert
ee561259a4 Karel Zak provided some slabinfo documentation 2005-01-24 18:30:24 +00:00
albert
37b9b9a235 valgrind freaked out on some weird old code 2005-01-24 03:37:41 +00:00
albert
8747618ef2 2.6.10 bumped the slabinfo minor; let the old parser handle it 2005-01-10 05:59:41 +00:00
albert
1010c1d281 fix overflow on huge NUMA boxes 2005-01-05 21:46:22 +00:00
albert
0fb81f5c39 display problem on 64-bit systems fixed 2005-01-05 21:11:21 +00:00
albert
c961f2604a leftovers in the 3.2.4 release 2004-11-04 20:50:59 +00:00
albert
6ec1cff342 ps: built-in test code, etc. 2004-10-12 00:12:25 +00:00
albert
630b655893 Patrick found to be alive 2004-09-23 13:45:18 +00:00
albert
0586dc8b6d fix warnings; put CFLAGS on lib link command 2004-09-23 13:41:33 +00:00
albert
55b3e73334 $TOPRC, eliminate status() fn, avoid /proc/*/stat more 2004-08-30 17:30:41 +00:00
albert
0d77d98bf3 ttySMX* devices, /proc/vmstat change, /proc/meminfo change 2004-08-27 20:21:46 +00:00