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157 Commits

Author SHA1 Message Date
Denys Vlasenko
e440b39416 *: stop using atexit in non-debug build: saves ~260 in bss with musl 
"builtin" below is atexit's 32-element global array of functions to call.

function                                             old     new   delta
top_main                                             879     889     +10
launch_helper                                        185     193      +8
powertop_main                                       1555    1559      +4
sed_main                                             651     650      -1
slot                                                   4       -      -4
call                                                   4       -      -4
atexit                                                23       -     -23
kill_helper                                           31       -     -31
__funcs_on_exit                                      120       -    -120
__cxa_atexit                                         168       -    -168
builtin                                              260       -    -260
------------------------------------------------------------------------------
(add/remove: 0/8 grow/shrink: 3/1 up/down: 22/-611)          Total: -589 bytes
   text	   data	    bss	    dec	    hex	filename
 912364	    563	   6132	 919059	  e0613	busybox_old
 912035	    563	   5844	 918442	  e03aa	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-16 17:45:32 +02:00
Denys Vlasenko
d80302db99 top: switch to malloced "globals". 
This seems to be more efficient:

function                                             old     new   delta
clearmems                                              -      28     +28
display_process_list                                1001    1018     +17
read_cpu_jiffy                                       171     177      +6
do_stats                                             194     198      +4
reset_term                                            20      23      +3
topmem_sort                                           63      65      +2
mult_lvl_cmp                                          44      45      +1
get_jiffy_counts                                     247     248      +1
display_topmem_process_list                          549     546      -3
top_main                                             912     879     -33
handle_input                                         630     549     -81
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/3 up/down: 62/-117)           Total: -55 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-16 11:40:10 +02:00
Denys Vlasenko
727948e585 getopt32: factor out code to treat all args as options 
Working towards making getopt32() xmalloc-free

function                                             old     new   delta
make_all_argv_opts                                     -      58     +58
top_main                                             914     912      -2
getopt32                                            1517    1458     -59
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/2 up/down: 58/-61)             Total: -3 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-04 16:33:23 +02:00
Denys Vlasenko
72089cf6b4 config: deindent all help texts 
Those two spaces after tab have no effect, and always a nuisance when editing.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-21 09:50:55 +02:00
Denys Vlasenko
4eed2c6c50 Update menuconfig items with approximate applet sizes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-18 22:01:24 +02:00
Denys Vlasenko
6c1f348fa7 Move FEATURE_USE_TERMIOS config option to two applets which use it 
No code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-11 16:27:12 +01:00
Denys Vlasenko
01ccdd1d3c libbb: consolidate the code to set termios unbuffered mode 
function                                             old     new   delta
set_termios_to_raw                                     -     116    +116
count_lines                                           72      74      +2
powertop_main                                       1458    1430     -28
top_main                                             943     914     -29
more_main                                            759     714     -45
fsck_minix_main                                     2969    2921     -48
conspy_main                                         1197    1135     -62
rawmode                                               99      36     -63
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/6 up/down: 118/-275)         Total: -157 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-11 16:17:59 +01:00
Denys Vlasenko
0fd9fb4244 top: FEATURE_USE_TERMIOS shouldn't control reading of screen size 
It controls whether we take input.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-11 10:50:08 +01:00
Denys Vlasenko
718e4fd564 top: fix help text: with !TERMIOS, no keys are affected top output 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-12-03 12:09:50 +01:00
Denys Vlasenko
f8f81ed7aa Convert all procps/* applets to "new style" applet definitions 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-23 06:23:44 +01:00
Denys Vlasenko
aedc3fe19f top: move free(prev_hist) out of signal path 
It was seen being called recursively on repeated signals,
leading to double free

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-08-19 11:07:31 +02:00
Denys Vlasenko
3e134ebf6a *: slap on a few ALIGN1/2s where appropriate 
The result of looking at "grep -F -B2 '*fill*' busybox_unstripped.map"

   text	   data	    bss	    dec	    hex	filename
 829901	   4086	   1904	 835891	  cc133	busybox_before
 829665	   4086	   1904	 835655	  cc047	busybox

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-22 18:09:21 +02:00
Denys Vlasenko
47cfbf32fd *: add most of the required setup_common_bufsiz() calls 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-21 18:18:48 +02:00
Denys Vlasenko
e6a2f4cc5a libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 
The config item is FEATURE_USE_BSS_TAIL. When it is off (default):

function                                             old     new   delta
read_config                                          210     228     +18
doCommands                                          2279    2294     +15
ipneigh_list_or_flush                                763     772      +9
ipaddr_list_or_flush                                1256    1261      +5
display_process_list                                1301    1306      +5
conspy_main                                         1378    1383      +5
do_lzo_compress                                      352     355      +3
do_lzo_decompress                                    565     567      +2
push                                                  46      44      -2
inetd_main                                          2136    2134      -2
uevent_main                                          421     418      -3
addLines                                              97      92      -5
bb_common_bufsiz1                                   8193    1024   -7169
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181)        Total: -7119 bytes
   text	   data	    bss	    dec	    hex	filename
 829850	   4086	   9080	 843016	  cdd08	busybox_old
 829901	   4086	   1904	 835891	  cc133	busybox_unstripped

FEATURE_USE_BSS_TAIL=y:

read_config                                          210     228     +18
doCommands                                          2279    2294     +15
ipneigh_list_or_flush                                763     772      +9
ipaddr_list_or_flush                                1256    1261      +5
display_process_list                                1301    1306      +5
conspy_main                                         1378    1383      +5
do_lzo_compress                                      352     355      +3
do_lzo_decompress                                    565     567      +2
inetd_main                                          2136    2134      -2
bb_common_bufsiz1                                   8193       -   -8193
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195)        Total: -8133 bytes
   text	   data	    bss	    dec	    hex	filename
 829850	   4086	   9080	 843016	  cdd08	busybox_old
 829911	   4086	    880	 834877	  cbd3d	busybox_unstripped

FIXME: setup_common_bufsiz() calls are missing.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-21 17:39:11 +02:00
Denys Vlasenko
4ad702c0a7 top: make sort field for 's' mode less confusing 
function                                             old     new   delta
display_topmem_process_list                          542     565     +23

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-14 22:30:47 +02:00
Denys Vlasenko
7b85ec30b5 *: more BUILD_BUG_ON conversions 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-13 17:17:34 +02:00
Denys Vlasenko
6c6d37ee45 top: fix memset length (sizeof(ptr) vs sizeof(array) problem) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-07-29 17:00:30 +02:00
Timo Teräs
7df1f1dda1 top: fix and merge code to parse /proc/meminfo 
display_header() code to parse meminfo as is was buggy:
- uninitialized variables were used if meminfo was not as expected
- meminfo parsing failed on new kernels (3.14+) as new field 'MemAvailable'
  was introduced between MemFree and Buffers
- shared memory was handled only for ancient kernels (2.4.x and earlier)

as result Buffers and shared memory fields were shown with bogus values
on current kernels.

The new code does not try to parse the old style summary header, as the
separated fields are always present (it saves code size). Additionally,
both Shmem (2.6+) and MemShared (2.4 and earlier) fields are now parsed
and summed for shared memory usage; as only one of them exists depending
on kernel version.

display_topmem_header() parses also meminfo so this makes it use the
same code for code shrink.

function                                             old     new   delta
display_header                                         -     681    +681
display_topmem_process_list                          465     684    +219
parse_meminfo                                          -     189    +189
static.fields                                          -     106    +106
static.match                                         132       -    -132
.rodata                                           120254  120117    -137
display_topmem_header                                513       -    -513
display_process_list                                1705     667   -1038
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 1/2 up/down: 1195/-1820)       Total: -625 bytes

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-07-27 21:49:27 +02:00
Bartosz Golaszewski
2de232da53 top.c: fix compilation warnings 
pfd[1] is unused

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-01-20 03:26:34 +01:00
Denys Vlasenko
327f550669 Use unsigned printf/scanf conversion where more appropriate 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-29 16:45:45 +01:00
Denys Vlasenko
dc57294485 top: fix breakage introduced by previous commit 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-09-06 12:59:48 +02:00
Denys Vlasenko
a407cf74cc Make smart_ulltoa return pointer to end (allows for code shink in callers) 
function                                             old     new   delta
smart_ulltoa5                                        405     408      +3
smart_ulltoa4                                        273     276      +3
list_table                                          1113    1114      +1
scale                                                 36      34      -2
put_lu                                                55      53      -2
ulltoa6_and_space                                     19      14      -5
powertop_main                                       1470    1461      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-09-06 12:53:14 +02:00
Denys Vlasenko
778794d1dd *: reuse more strings 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-22 10:13:52 +01:00
Denys Vlasenko
60cb48ca50 whitespace cleanup. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-14 15:57:44 +01:00
Denys Vlasenko
c4f2d997a4 libbb: correctness/size tweaks in signal-related helpers 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-27 13:20:34 +02:00
Denys Vlasenko
73a1990897 top: do not touch stdin if -b 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-26 16:58:25 +02:00
Denys Vlasenko
ffe03f04cb top: fix build failure in !USE_TERMIOS case 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-25 12:48:46 +02:00
Denys Vlasenko
2fb8d0dee9 top: implement scrolling up/down (_very_ useful) 
function                                             old     new   delta
handle_input                                         494     564     +70
top_main                                             928     947     +19
display_topmem_process_list                          363     381     +18
display_process_list                                1442    1453     +11
clearmems                                             38      28     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 118/-10)           Total: 108 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-21 13:04:37 +02:00
Denys Vlasenko
16714245f9 add INIT_G()'s. No code changes. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-21 01:59:15 +02:00
Denys Vlasenko
24b71fd894 top: display sort indicator in memory display 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-18 12:11:19 +02:00
Denys Vlasenko
eafc558f94 top: better indicator of selected field in mem view 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-14 01:32:09 +02:00
Denys Vlasenko
4d6059eedc top: another scripting improvement 
function                                             old     new   delta
handle_input                                         492     493      +1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-06 20:47:54 +02:00
Denys Vlasenko
7d9a1d25e5 top: make it possible to feed commands via pipe 
function                                             old     new   delta
handle_input                                           -     492    +492
mult_lvl_cmp                                          38      49     +11
packed_usage                                       28247   28257     +10
top_main                                            1345     928    -417
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 513/-417)           Total: 96 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-06 20:34:04 +02:00
Denys Vlasenko
9aa599dc9d top: replace %MEM with %VSZ in header text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-25 12:48:47 +01:00
Denys Vlasenko
444ff284c4 top: document a debugging script 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-25 01:57:31 +01:00
Denys Vlasenko
068444629f top: add keyboard commands to --help 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2011-01-13 16:07:51 +01:00
Marek Polacek
3c99d59b5d top: Use _exit() instead of exit() in sighandler 
Signed-off-by: Marek Polacek <mmpolacek@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-10-27 02:25:16 +02:00
Alexander Shishkin
0834a6d3b9 pmap: new applet. +1k. 
pmap is a tool used to look at processes' memory maps, normally found
in procps package. It provides more readable and easily sortable output
(one line per mapping) from  maps/smaps files in /proc/PID/.  This would
help in debugging memory usage issues, especially on devices where lots
of typing is not a viable option.

This patch does'n implement -d and -A command line options of GNU pmap,
since those are not that must have features and I was afraid of going
blind from looking at its code.

The implementation takes smaps scanning part out of procps_scan() function
and moves it into procps_read_smaps(), which does more detailed processing
of a single PID's smaps data.

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-28 23:20:34 +02:00
Denys Vlasenko
0ef64bdb40 *: make GNU licensing statement forms more regular 
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-16 20:14:46 +02:00
Denys Vlasenko
a95ce93e57 top: add tie breaking for topmem mode 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-13 12:13:04 +02:00
Denys Vlasenko
d94332f2b6 top: code shrink, -26 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-06 17:40:54 +02:00
Maksym Kryzhanovskyy
87496aa081 top: code shrink 
text    data     bss     dec     hex filename
 853034     453    6820  860307   d2093 busybox_old
 852726     453    6820  859999   d1f5f busybox_unstripped

Signed-off-by: Maksym Kryzhanovskyy <xmaks@email.cz>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-06 08:24:39 +02:00
Denys Vlasenko
d9a3e89f50 consolidate ESC sequences 
function                                             old     new   delta
bell                                                   2       -      -2
CMdown                                                 2       -      -2
Ceos                                                   4       -      -4
Ceol                                                   4       -      -4
CMup                                                   4       -      -4
SOs                                                    5       -      -5
SOn                                                    5       -      -5
CMrc                                                   9       -      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-16 23:42:13 +02:00
Denys Vlasenko
917693b5b3 top: make 's' display easier to understand 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-04 12:50:59 +01:00
Denys Vlasenko
98a4c7cf3d *: suppress ~60% of "aliased warnings" on gcc-4.4.1 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-02-04 15:00:15 +01:00
Denys Vlasenko
9be4f31da0 top: do not use #if inside printf, it can be a macro 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-07 04:06:31 +01:00
Denys Vlasenko
8131eea3dc *: introduce and use ffulsh_all() 
function                                             old     new   delta
buffer_fill_and_print                                179     196     +17
fflush_all                                             -       9      +9
spawn                                                 87      92      +5
rtcwake_main                                         455     453      -2
...
alarm_intr                                            93      84      -9
readcmd                                             1072    1062     -10
bb_ask                                               345     333     -12
more_main                                            845     832     -13
flush_stdout_stderr                                   42      23     -19
xfflush_stdout                                        27       -     -27
flush_stderr                                          30       -     -30
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 2/50 up/down: 31/-397)         Total: -366 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-02 14:19:51 +01:00
Denys Vlasenko
36df04837a randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-19 16:07:28 +02:00
Denys Vlasenko
d75295c80b ps: conditionally enable -T on non-DESKTOP build too 
function                                             old     new   delta
ps_main                                              253     274     +21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-21 23:58:43 +02:00
Denys Vlasenko
b410d4ada7 ps,top: add an option to show threads. +260 bytes of code 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-19 22:29:42 +02:00