313 Commits

Author SHA1 Message Date
eadler
e0183b4208 top(1): add command aliases; correct dumb support 2018-06-10 09:04:56 +00:00
eadler
e6d82632eb top(1): use sys_signame instead of hard coding signals
This enables the removal of the signal.h awk script. Shamelessly stolen
from kill(1).
2018-06-10 09:00:01 +00:00
eadler
904c2cb639 top(1): bring some structure to commands
Right now this is only used for help text but it'll eventually be used
to build up long options array, dispatch commands, etc.
2018-06-10 08:59:57 +00:00
eadler
270cec61b7 top(1): use correct word when displaying threads
PR:		182204
Reported by:	"Brodey Dover" <doverosx@gmail.com>
2018-06-10 06:33:49 +00:00
eadler
4b53cf024a top(1): filter fewer warnings; clean up
- remove WARNS?=6. It is default
- we no longer have cast-qual problems
- remove unused macros
- remove unneeded casts
- add include guard for loadavg.h
2018-06-10 06:21:51 +00:00
eadler
18f78f76b1 top(1): permit sending signal with any case 2018-06-10 06:21:45 +00:00
eadler
d30eda770d top(1): permit sub-second delay times
This removes the getuid check for delay==0. It didn't prevent users from
writing similar programs in the general case. In theory, if top(1) is
among one of the few restricted programs you're allowed to run, it may
have helped a little, but there are better ways of handling that case.
2018-06-10 00:02:56 +00:00
eadler
92a34e118f top(1): correctly reset per-cpu counters
I had changed this from a for loop to a memset during an earlier
cleanup. This change was incorrect so revert it.

While here, clean up

Reported by:	flo
2018-06-09 23:24:08 +00:00
eadler
f1ff637196 top(1): handle specific pids better
When told to watch a specific pid, don't filter idle, system, or self
processes. The summary at the top will still flip correctly though.
2018-06-09 23:08:02 +00:00
eadler
4c4eea9ffb top(1): implement additional missing long options 2018-06-09 22:30:10 +00:00
eadler
8b085d88ea top(1): initial pass to freebsdize the man page
The previous man page used many conventions not typical in FreeBSD.
Since we've forked top completely, convert the man page too.
2018-06-09 21:40:33 +00:00
eadler
996ff47baf top(1): Implement long options
This also documents some reserved or differing options from top's
original upstream.
2018-06-09 21:40:24 +00:00
eadler
2caa76fae6 top(1): allow starting with -T flag 2018-06-09 20:06:06 +00:00
eadler
bd2aa50641 top(1): correct header, align it.
THR is always 6 digits or longer. Now that the PID/THR change is
separated, use correct headers.

PR:		228823
Reported by:	Trond.Endrestol@ximalas.info
2018-06-09 02:47:02 +00:00
eadler
8e46c09fa9 top(1): actually make change for tid vs pid 2018-06-09 02:18:15 +00:00
eadler
ed8df841b1 top(1): use a different command to toggle tid vs pid
- By popular demand, implement a different switch ("T") for toggling
between thread id and process id.
- Add an assert that the size of command chars is as expected.
- Also clean up some messiness I found when implementing this.
- Further document the new flag.

Requested by:	flo, ronald-lists@klop.ws, bapt
PR:		139389 (for the record)
X-MFC-With:	r334474
2018-06-09 02:14:33 +00:00
eadler
ab5c9fc3e4 top(1): remove some unneeded indirection 2018-06-08 02:03:51 +00:00
eadler
d726cfc23b top(1): fix several style & const related issues
- use parens for return
- put function names on newline
- sprinkle const where possible
2018-06-08 01:55:47 +00:00
eadler
1e1a98da52 top(1): fix err again
I am amazed at my ability to get a one-line error reporting line wrong
thrice.
2018-06-06 07:13:27 +00:00
eadler
bafaf11c30 top(1): make error message happy
We don't use a "size" variable, so just don't report it.

Reported by:	bapt
2018-06-06 06:42:12 +00:00
eadler
137389006f top(1): some nitpicks
- prefer fully spelled names to "u_long"
- fix speeling
2018-06-04 05:27:00 +00:00
eadler
8876d70038 top(1): include what you use
- Change headers to more closely match what we use
- use more standard functions instead of bzero, bcmp, bcopy
- Add myself to authors.

Tested with: base clang (amd64), gcc 9 (amd64), base clang (i386), base
gcc (mips)
2018-06-04 04:59:32 +00:00
eadler
d702882720 top(1): Prefer memcpy over bcopy 2018-06-04 04:59:24 +00:00
eadler
185ad69fb8 top(1): Use strsep instead of homegrown alternative
This replaces some complex, and not quite correct logic, with a more
common strsep pattern.

Reviewed by:	mmacy (older version)
2018-06-04 03:16:24 +00:00
eadler
0d7f83c56e top(1): another pass of cleanup
- avoid the need to call a function to get size of known array. I'll
likely re-arrange some of the indirect in a later to avoid the magic
constants.
- use correct type
- add const
- replace caddr_t with void*. This corrects an alignment warning.
- remove duplicated include from immediately prior commit

Under base clang we're now down to:
- 3 warning in top.c, 1 warning in mahcine.c,  4 warning in display.c,
- 1 warning in utils.c

Tested with base clang, gcc7, gcc9, base gcc (mips)
2018-06-03 23:40:54 +00:00
eadler
098711ee0b top(1): top warnings and cleanup
- Add const where helpful
- add missing 'static' for file-local functions
- use nitems where possible
- convert manual abort() to assert
- use strndup instead of homegrown version

Tested with clang, gcc7, and gcc9
2018-06-03 22:42:54 +00:00
eadler
5943c1f8ae top(1): restore size for kern.cp_times
Restore last minute change that broke top(1).
2018-06-03 13:41:23 +00:00
eadler
6b69a377de top(1): Only use NO_WERROR for base gcc
This is what was intended. If statements are hard.
2018-06-03 06:02:31 +00:00
eadler
6458a7dc63 top(1): partial revert of r334517
In fixing issues with uid > INT_MAX, I broke the uid without username
case. The latter is more important so return the old state.

Discussed with:	allanjude
2018-06-03 05:20:11 +00:00
eadler
4991aba55b top(1): remove chdir to /
While this came out of a conversation in IRC, it turn out that some
people don't like it. Since this was a courtesy feature, just remove it.
2018-06-03 05:07:46 +00:00
eadler
e65f0721ff top(1): use greater warnings
One of the downsides of using numeric WARNS is that if we only have a
single type of issue we get no protection from other changes.  For
example, we got no warning for missing variable declaration, due to
the issues with "const".

For this utility, explicitly list out the warnings which are failing.
They should still be fixed, so only reduce them to warning instead of
error.

Tested with: clang base (amd64, i386), gcc6, gcc7, gcc9, gcc base (mips)
2018-06-03 05:07:39 +00:00
eadler
3dee6f7a13 top(1): misc minor improvements
- use bool instead of int [0]
- use calloc correctly [0]
	(this also caught an incorrect sizeof argument) [1]
- use size_t over int [2]
- correct style

Reported by:	pfg [0], scan-build [1], gcc [2]
2018-06-03 02:58:53 +00:00
eadler
7f99483fb2 top(1): Fix two speeling errors I introduced 2018-06-02 22:12:57 +00:00
eadler
4bce4f59c4 top(1): chdir to / as init; remove unneeded comment
- chdir to / to allow unmounting of wd
- remove warning about running top(1) as setuid. If this is a concern we
should just drop privs instead.
2018-06-02 22:06:27 +00:00
eadler
0296b74c55 top(1): cleanup memory allocation and warnings
- Prefer calloc over malloc. This is more predicable and we're not in a
performance sensitive context. [1]
- Remove bogus comment (obsolete from prior commit). [2]
- Remove void casts and type casts of NULL
- Remove redundant declaration of 'quit'
- Add additional const

Reported by:	kib [1], vangyzen [2]
2018-06-02 21:40:45 +00:00
novel
f2fe0a1957 top: add -p option and p command to only show a single process
Allow to show only a single process specified by PID. This could
be done either by running top like 'top -p PID' or using the 'p' command
inside top.

Reviewed by:	eadler
Approved by:	eadler
Obtained from:	OpenBSD
Differential Revision:	https://reviews.freebsd.org/D15501
2018-06-02 15:52:18 +00:00
eadler
aa8c5e3456 Use stpcpy instead of home grown solution 2018-06-02 08:46:09 +00:00
eadler
a8efb181f4 top(1): remove wrapper around putchar
This appears to have been written for portability which we no longer
need.
2018-06-02 07:44:53 +00:00
eadler
1bb7502e75 top(1): const poison part 2
Further reduce the number of warnings emitted by gcc.
2018-06-02 07:44:50 +00:00
eadler
c60e3080a1 top(1): const poison
top(1) has a number of issues with writing to const strings. Begin
helping this along by marking easy cases as const.
2018-06-02 04:37:37 +00:00
eadler
dfdbe4a30f top(1): clean up a bit
- remove unused defines
- use standard defines for STDOUT
- don't cast for memset
- avoid using (void) cast
2018-06-02 04:20:42 +00:00
eadler
ff370bfd90 top(1): help scan-build along a bit
Teach scan-build that some arrays are larger than zero, and thus not to
warn.
2018-06-02 04:08:52 +00:00
eadler
d08be95677 top(1): Use uid_t for uid rather than 'int'
Remove unneeded define while here.
2018-06-02 03:54:50 +00:00
eadler
5af3d07de3 top(1): Remove now-invalid NOTE 2018-06-02 03:33:02 +00:00
eadler
f085a59180 top(1): avoid casting malloc 2018-06-02 03:31:14 +00:00
eadler
28565af2eb top(1): Use standard boolean rather than homegrown alternative 2018-06-02 03:25:15 +00:00
eadler
1a8e246518 top(1): remove two unneeded headers 2018-06-02 00:02:27 +00:00
eadler
72a0a627b4 top(1): ansify, style(9). and nits
- Prefer using ansi prototypes rather than C prototypes
- Keep type on separate line from name of function
- Try to keep things const where possible. This will help get to WARNS=6
- switch to "bool" where it makes sense
2018-06-02 00:02:15 +00:00
eadler
e1ba86c936 top(1): Display of TID when using 'H' flag
Some users prefer seeing the TID when viewing individual threads. This
makes sense as the PID will be the same for multiple entries. An attempt
was made to include both, but there is insufficient room. As such, using
the TID.

While here, rename the header variables to be more understandable.

Discussed with:	mmacy
Reported on:	2009-10-07
2018-06-01 05:51:40 +00:00
eadler
0394adab91 top(1): increase size of 'status' buffer
This corrects a warning issues by gcc9:
/srv/src/freebsd/head/usr.bin/top/machine.c:988:22: warning: '%5zu'
directive writing between 5 and 20 bytes into a
 region of size 15 [-Wformat-overflow=]
     sprintf(status, "?%5zu", state);
2018-05-22 07:56:58 +00:00