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186 Commits

Author SHA1 Message Date
Denys Vlasenko
689d0650ab libbb: shrink recursive_action() by reducing memory pressure 
function                                             old     new   delta
recursive_action1                                      -     316    +316
file_action_grep                                     161     164      +3
add_to_prg_cache_if_socket                           202     205      +3
depmod_main                                          509     511      +2
writeFileToTarball                                   488     489      +1
parse_module                                         281     282      +1
fileAction                                           207     208      +1
act                                                  189     190      +1
add_to_dirlist                                        65      64      -1
writeTarFile                                         196     194      -2
uuidcache_init                                        47      45      -2
uuidcache_check_device                               109     107      -2
true_action                                            8       6      -2
run_parts_main                                       310     308      -2
netstat_main                                         534     532      -2
lsusb_main                                            29      27      -2
lspci_main                                            45      43      -2
initial_scan                                         138     136      -2
grep_main                                            845     843      -2
find_main                                            482     480      -2
config_file_action                                   437     435      -2
chmod_main                                           142     140      -2
dirAction                                             14      10      -4
diff_main                                           1544    1540      -4
chown_main                                           154     148      -6
skip_dir                                             136     129      -7
dir_act                                              191     184      -7
recursive_action                                     453      69    -384
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/20 up/down: 328/-439)        Total: -111 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-10-01 21:52:16 +02:00
Aaro Koskinen
af18b301eb find: implement -empty 
function                                             old     new   delta
func_empty                                             -     121    +121
packed_usage                                       33154   33167     +13
parse_params                                        1490    1500     +10
static.params                                        228     235      +7
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/0 up/down: 151/0)             Total: 151 bytes

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-09-12 12:04:34 +02:00
James Byrne
6937487be7 libbb: reduce the overhead of single parameter bb_error_msg() calls 
Back in 2007, commit 0c97c9d437 ("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().

This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.

Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.

This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.

The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):

Arm:     -92 bytes
MIPS:    -52 bytes
PPC:   -1836 bytes
x86_64: -938 bytes

Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.

Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-07-02 11:35:03 +02:00
Denys Vlasenko
2d9e097963 find: handle leading -- argument 
function                                             old     new   delta
find_main                                            464     478     +14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-06 19:58:18 +01:00
Denys Vlasenko
008e73b572 find: implement -executable 
function                                             old     new   delta
func_executable                                        -      19     +19
parse_params                                        1505    1519     +14
static.params                                        216     228     +12
packed_usage                                       32847   32855      +8
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/0 up/down: 53/0)               Total: 53 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-07-06 21:04:41 +02:00
Denys Vlasenko
abe22cd17b find: implement -quit 
function                                             old     new   delta
packed_usage                                       32816   32846     +30
find_main                                            446     464     +18
func_quit                                              -      13     +13
parse_params                                        1495    1505     +10
static.params                                        210     216      +6
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/0 up/down: 77/0)               Total: 77 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-07-06 20:35:35 +02:00
Denys Vlasenko
f4eaccbfae free: improve --help for type option 
Patch by Fred Friedrich.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-24 10:13:45 +02:00
Denys Vlasenko
0c4dbd481a regularize format of source file headers, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-09-18 16:28:43 +02:00
Denys Vlasenko
95f7953f2c do not use `a' quoting style in comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-02 14:26:33 +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
10ad622dc2 Spelling fixes in comments, documentation, tests and examples 
By klemens <ka7@github.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-04-17 16:13:32 +02:00
Denys Vlasenko
f560422fa0 Big cleanup in config help and description 
Redundant help texts (one which only repeats the description)
are deleted.

Descriptions and help texts are trimmed.

Some config options are moved, even across menus.

No config option _names_ are changed.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-10 14:58:54 +01:00
Denys Vlasenko
ccc9985c45 find: fix handling of trailing slashes in -name PATTERN comparisons 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-25 20:14:33 +01:00
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
0f296a3a56 libiproute: rename invarg(a,b) to invarg_1_to_2(a,b) 
invarg(a,b) - "invalid argument", but how a and b enter the message?

invarg_1_to_2(a,b) is somewhat easier to read: "invalid argument 'a' to 'b'"

Audit of usage revealed a number of bad uses, with too long messages.

   text	   data	    bss	    dec	    hex	filename
 938848	    932	  17448	 957228	  e9b2c	busybox_old
 938788	    932	  17448	 957168	  e9af0	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-14 13:21:01 +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
8c0708a329 find: support "find . -delete" idiom - do not try rmdir(".") 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-07 21:01:47 +02:00
Denys Vlasenko
5711a2a4ad libbb: more compact API for bb_parse_mode() 
function                                             old     new   delta
make_device                                         2182    2188      +6
parse_command                                       1440    1443      +3
parse_params                                        1497    1499      +2
install_main                                         773     769      -4
mkdir_main                                           168     160      -8
getoptscmd                                           641     632      -9
builtin_umask                                        158     147     -11
bb_parse_mode                                        431     410     -21
umaskcmd                                             286     258     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/6 up/down: 11/-81)            Total: -70 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-07 17:55:33 +02:00
Felix Fietkau
f7466e4776 find: fix regression in status processing for path arguments 
Regression added in commit 14158b4127
"find: add optional support for '-exec ... {} +'"

This commit causes find to exit on the first path argument that was not
found, which breaks existing scripts and is incompatible to other
implementations.

Instead of exiting on the first failure, return EXIT_FAILURE at the end
if any error occurred.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-04-14 16:45:23 +02:00
Denys Vlasenko
3e9b13e4c5 find: support -perm /BITS. Closes 7340 
function                                             old     new   delta
parse_params                                        1487    1497     +10
func_perm                                             57      61      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 14/0)               Total: 14 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-09-05 12:16:15 +02:00
Denys Vlasenko
f92f1d0181 find: use sysconf(_SC_ARG_MAX) to determine the command-line size limit 
The find utility uses a hardcoded value of 32 * 1024 as the limit of
the command-line length when calling 'find -exec ... {} +'. This results
in over 4 times more execve() calls than in coreutils' find.

This patch uses the limit defined in system headers.

Based on the patch by  Bartosz Golaszewski <bartekgola@gmail.com>.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-06-22 13:54:40 +02:00
Denys Vlasenko
6be3a5242c find: exit code fixes for find -exec 
function                                             old     new   delta
func_exec                                            127     100     -27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-06-19 11:32:11 +02:00
Bartosz Golaszewski
14158b4127 find: add optional support for '-exec ... {} +' 
function                                             old     new   delta
do_exec                                                -     309    +309
parse_params                                        1416    1487     +71
find_main                                            342     406     +64
packed_usage                                       29958   30014     +56
func_exec                                            138     127     -11
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/1 up/down: 500/-11)           Total: 489 bytes

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-06-17 17:09:41 +02:00
Denys Vlasenko
6f068904dc xargs: add support for -I and -i. Closes 493 
function                                             old     new   delta
process_stdin_with_replace                             -     195    +195
xmalloc_substitute_string                              -     145    +145
xargs_main                                           808     884     +76
count_strstr                                           -      45     +45
packed_usage                                       29580   29571      -9
parse_params                                        1445    1416     -29
func_exec                                            285     138    -147
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 1/3 up/down: 461/-185)          Total: 276 bytes
   text	   data	    bss	    dec	    hex	filename
 922156	    932	  17692	 940780	  e5aec	busybox_old
 922440	    932	  17692	 941064	  e5c08	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-02-27 11:17:06 +01:00
Denys Vlasenko
6885e49ba5 find: code shrink 
function                                             old     new   delta
func_exec                                            306     285     -21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-02-26 15:27:10 +01:00
Denys Vlasenko
6eb0cbe07e find: fix a regression introduced with -HLP support 
function                                             old     new   delta
find_main                                            294     342     +48

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-01-09 16:08:09 +01:00
Denys Vlasenko
982e87f2fb Whitespace fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-30 11:52:58 +02:00
Denys Vlasenko
6db5f679a2 find:: get rid of nested function (it's a gcc-ism) 
function                                             old     new   delta
alloc_action                                           -      80     +80
parse_params                                        1459    1445     -14
static.alloc_action                                   98       -     -98
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 80/-112)           Total: -32 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-05-16 18:36:42 +02:00
Denys Vlasenko
6782f48ccb find: support -HLP 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-05-14 17:20:35 +02:00
Denys Vlasenko
6967578728 whitespace fixes. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-14 01:34:48 +01:00
Denys Vlasenko
2dc1a97272 find: make -mindepth N -xdev correctly stop on mountpoints 
function                                             old     new   delta
fileAction                                           153     193     +40

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-06 15:24:11 +02:00
Denys Vlasenko
7c8aa2b47c typo fix in comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-05-18 02:53:11 +02:00
Denys Vlasenko
be1cfeea2e find: if DESKTOP=y, support -wholename (synonym for -path) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-05-17 12:25:25 +02:00
Ian Wienand
abc33ac8b2 Fix find -follow support 
Signed-off-by: Ian Wienand <ianw@vmware.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-28 06:53:20 +02:00
Denys Vlasenko
87249fbf50 find: fix a bug in !ENABLE_FEATURE_FIND_XDEV config 
A subtle one: wrong pairing of "else"!

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-11 02:27:13 +02:00
Denys Vlasenko
66426760be *: remove "Options:" string from help texts 
function                                             old     new   delta
packed_usage                                       28706   28623     -83

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-06-05 03:58:28 +02:00
Denys Vlasenko
b24ef035bd find: cater for libc w/o FNM_CASEFOLD 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-23 00:40:54 +02:00
Bogdan Harjoc
7948ecb505 find: implement -ipath 
Signed-off-by: Bogdan Harjoc <harjoc@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-22 03:50:21 +02:00
Denys Vlasenko
e1a4209a5e find: trim help text a bit 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 20:37:41 +01:00
Denys Vlasenko
053c12e0de find: remove the hack we use to parse options first, replace with simpler code 
text	   data	    bss	    dec	    hex	filename
 867764	    438	   7552	 875754	  d5cea	busybox_old
 867629	    438	   7552	 875619	  d5c63	busybox_unstripped

function                                             old     new   delta
parse_params                                        1377    1440     +63
static.params                                        151     192     +41
static.options                                        42      57     +15
fileAction                                           151     153      +2
find_main                                            466     267    -199
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 121/-199)          Total: -78 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 20:27:13 +01:00
Denys Vlasenko
805f2453d0 find: print/print0/prune _can_ be inverted, fix it 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 20:26:14 +01:00
Denys Vlasenko
27076b8233 find: document ! (not) operator 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 18:49:48 +01:00
Denys Vlasenko
4604dd86c5 find: help text: PATH must be first 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 18:24:15 +01:00
Denys Vlasenko
56cdb2fc37 find: yet another tweak to help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 17:13:03 +01:00
Denys Vlasenko
4dea9eb07f find: fix help text about -prune: it also does assume -print 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 17:08:16 +01:00
Denys Vlasenko
cef85c2442 find: significantly improve hext text. +116 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-12 16:35:24 +01:00
Denys Vlasenko
b9f2d9f7d9 mass removal of underscores from _BB_DIR_foo and _BB_SUID_foo 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-18 13:58:01 +01:00
Denys Vlasenko
a61ff51b49 find: add rudimentary support for -exec {} + 
function                                             old     new   delta
parse_params                                        1421    1414      -7

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-08-31 19:17:42 +02:00