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144 Commits

Author SHA1 Message Date
Denys Vlasenko
fe73c8d557 *: style fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-08-30 16:41:17 +02:00
Denys Vlasenko
db5546ca10 libbb: code shrink: introduce and use [_]exit_SUCCESS() 
function                                             old     new   delta
exit_SUCCESS                                           -       7      +7
_exit_SUCCESS                                          -       7      +7
run_pipe                                            1562    1567      +5
pseudo_exec_argv                                     399     400      +1
finish                                                86      87      +1
start_stop_daemon_main                              1109    1107      -2
shutdown_on_signal                                    38      36      -2
runsv_main                                          1662    1660      -2
redirect                                            1070    1068      -2
read_line                                             79      77      -2
pause_and_low_level_reboot                            54      52      -2
list_i2c_busses_and_exit                             483     481      -2
less_exit                                             12      10      -2
identify                                            4123    4121      -2
grep_file                                           1161    1159      -2
getty_main                                          1519    1517      -2
fsck_minix_main                                     2681    2679      -2
free_session                                         132     130      -2
fdisk_main                                          4739    4737      -2
clean_up_and_exit                                     53      51      -2
bsd_select                                          1566    1564      -2
bb_daemonize_or_rexec                                198     196      -2
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/17 up/down: 21/-34)           Total: -13 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-05 22:16:06 +01:00
Denys Vlasenko
965b795b87 decrease paddign: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nilly 
text	   data	    bss	    dec	    hex	filename
1021988	    559	   5052	1027599	  fae0f	busybox_old
1021236	    559	   5052	1026847	  fab1f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 13:03:03 +01:00
Denys Vlasenko
ec16c030bd libbb: introduce and use sleep1() 
function                                             old     new   delta
sleep1                                                 -       9      +9
run_shutdown_and_kill_processes                       97      95      -2
restore_state_and_exit                               116     114      -2
reread_partition_table                                67      65      -2
flush_buffer_cache                                    80      78      -2
chat_main                                           1302    1300      -2
timeout_main                                         310     307      -3
telnet_main                                         1235    1232      -3
stop_handler                                          86      83      -3
process_action                                      1078    1075      -3
nbdclient_main                                      1185    1182      -3
init_main                                            789     786      -3
getty_main                                          1541    1538      -3
do_time                                              410     407      -3
runsv_main                                          1682    1677      -5
pause_and_low_level_reboot                            59      54      -5
inetd_main                                          1917    1911      -6
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/16 up/down: 9/-50)            Total: -41 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-29 11:37:34 +01:00
Ron Yorston
5c69ad0ecd build system: drop PLATFORM_LINUX 
PLATFORM_LINUX is a hidden configuration option which is disabled by
default and enabled at over a hundred locations for features that are
deemed to be Linux specific.

The only effect of PLATFORM_LINUX is to control compilation of
libbb/match_fstype.c.  This file is only needed by mount and umount.

Remove all references to PLATFORM_LINUX and compile match_fstype.c
if mount or umount is enabled.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-08-13 17:12:56 +02:00
Denys Vlasenko
122a8cbd4a hdparm: placate "warning: taking the absolute value of unsigned type" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-25 17:47:22 +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
b097a84d62 config: update size information 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-28 03:20:17 +01:00
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
9880f86d6e hdparm: remove contradicting size info in config help 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-18 22:25:58 +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
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
f88e3bfa8d Convert all miscutils/* applets to "new style" applet definitions 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-22 23:54:17 +01:00
Denys Vlasenko
fb4da16711 Split miscutils/Config.src items into miscutils/*.c files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-22 23:14:24 +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
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
d60752f8c9 build system: -fno-builtin-printf 
Benefits are: drops reference to out-of-line putchar(), fixes a few cases
of failed string merge.

function                                             old     new   delta
i2cdump_main                                        1488    1502     +14
sha256_process_block64                               423     433     +10
sendmail_main                                       1183    1185      +2
list_table                                          1114    1116      +2
i2cdetect_main                                      1235    1237      +2
fdisk_main                                          2852    2854      +2
builtin_type                                         119     121      +2
unicode_conv_to_printable2                           325     324      -1
scan_recursive                                       380     378      -2
mkfs_minix_main                                     2687    2684      -3
buffer_fill_and_print                                178     169      -9
putchar                                              152       -    -152
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 7/4 up/down: 34/-167)          Total: -133 bytes
   text    data     bss     dec     hex filename
 937788     932   17676  956396   e97ec busybox_old
 937564     932   17676  956172   e970c busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-07 22:42:45 +02:00
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
6830ade6aa whitespace fixes. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-15 13:58:01 +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
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
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
Pere Orga
5bc8c005a8 move remaining help text from include/usage.src.h 
Signed-off-by: Pere Orga <gotrunks@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-04-11 03:29:49 +02:00
Denys Vlasenko
e4dcba1c10 *: whitespace fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-10-28 18:57:19 +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
7783248eaa *: s/xatoi_u/xatoi_positive/g - I got bored of mistyping xatoi_u as xatou_i 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-12 14:14:45 +02:00
Denys Vlasenko
f3ea792bad *: mass cosmetic removal of extra empty lines. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-26 01:06:14 +02:00
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
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
Bernhard Reutner-Fischer
a48308701a add and use xopen_nonblocking (-18b) 
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-27 17:17:34 +01:00
Denys Vlasenko
a7bb3c1396 *: code shrink via NOINLINE 
function                                             old     new   delta
expand_vars_to_list                                    -    2118   +2118
lzo1x_optimize                                         -    1429   +1429
run_pipe                                             358    1775   +1417
arith_apply                                            -    1335   +1335
mainQSort3                                             -    1198   +1198
logdir_open                                            -    1163   +1163
rewrite                                                -    1039   +1039
dump_identity                                          -     987    +987
do_shm                                                 -     884    +884
cpio_o                                                 -     863    +863
cpio_main                                           1450     560    -890
ipcs_main                                           3442    2523    -919
bb_dump_dump                                        2611    1488   -1123
process_dev                                         4572    3405   -1167
logdirs_reopen                                      1308      86   -1222
arith                                               2084     707   -1377
mainSort                                            2622    1202   -1420
do_lzo_compress                                     2276     799   -1477
run_list                                            2491     943   -1548
expand_variables                                    2280     135   -2145
------------------------------------------------------------------------------
(add/remove: 9/0 grow/shrink: 1/10 up/down: 12433/-13288)    Total: -855 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-08 12:28:08 +02:00
Denys Vlasenko
af3fd14e4d hdparm,fdisk: reinstate BLKGETSIZE64 #defines. No code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-22 23:16:39 +02:00
Denys Vlasenko
860d2bbdda fix fallout from BSD patches 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-10 18:37:06 +02:00
Denys Vlasenko
da49f58524 move libc related stuff out of platform.h 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-08 02:58:38 +02:00
Denys Vlasenko
b22bbfffec fix dependencies of FEATURE_GETOPT_LONG 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-04 16:50:43 +02:00
Denys Vlasenko
2b132e5139 hdparm: fix a thinko in a previous commit 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-05-20 23:21:42 +02:00
Denys Vlasenko
c706845539 hdparm: code shrink 
function                                             old     new   delta
parse_opts_0_INTMAX                                    -      12     +12
parse_opts_0_1                                         -      12     +12
parse_opts_0_max                                       -       9      +9
parse_opts                                            44      36      -8
process_dev                                         4679    4578    -101
hdparm_main                                         1061     854    -207
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 0/3 up/down: 33/-316)          Total: -283 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-05-20 16:11:41 +02:00
Denys Vlasenko
6d335be211 hdparm: correct (t & 1) ? '0' : '5' thinko; wrap 80+ col lines 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-05-20 14:48:03 +02:00
Denis Vlasenko
5e34ff29bc *: mass renaming of USE_XXXX to IF_XXXX 
and SKIP_XXXX to IF_NOT_XXXX - the second one was especially
badly named. It was not skipping anything!
 2009-04-21 11:09:40 +00:00
Denis Vlasenko
551ffdccea more of pointless whitespace fixes 2009-04-01 19:48:05 +00:00
Denis Vlasenko
d6855d1b50 style fixes, no code changes 2008-09-27 14:03:25 +00:00
Denis Vlasenko
a60f84ebf0 *: rename ATTRIBUTE_XXX to just XXX. 2008-07-05 09:18:54 +00:00
Denis Vlasenko
7049ff8696 whitespace fixes. no code changes 2008-06-25 09:53:17 +00:00
Denis Vlasenko
53354ac47d libbb: introduce and use print_flags(). 
Mostly by Natanael Copa <natanael.copa AT gmail.com>

function                                             old     new   delta
print_e2flags                                          -     189    +189
print_flags_separated                                  -      86     +86
static.flag_labels                                     -      60     +60
static.dma_wmode_masks                                 -      32     +32
static.flag_masks                                      -      28     +28
static.arp_labels                                      -      16     +16
static.arp_masks                                       -      12     +12
ls_main                                              836     843      +7
...
popstring                                            140     134      -6
arp_show                                             740     708     -32
print_flags                                          189      25    -164
ipaddr_list_or_flush                                2396    2170    -226
process_dev                                         5306    4706    -600
------------------------------------------------------------------------------
(add/remove: 10/0 grow/shrink: 5/10 up/down: 458/-1043)      Total: -585 bytes
   text    data     bss     dec     hex filename
 810564     624    7060  818248   c7c48 busybox_old
 810002     624    7060  817686   c7a16 busybox_unstripped
 2008-06-07 15:10:29 +00:00
Denis Vlasenko
7d60fc1c0a replace single-char printf's with bb_putchar 2008-06-05 06:51:06 +00:00
Bernhard Reutner-Fischer
5e25ddb7d3 - use STD*_FILENO some more. No object-code changes 2008-05-19 09:48:17 +00:00
Denis Vlasenko
6b06cb80be more of -Wall fixes from Cristian Ionescu-Idbohrn. 
Some are fixing real bugs.

function                                             old     new   delta
syslogd_main                                         938     958     +20
get_signum                                           136     143      +7
obj_load                                             777     782      +5
recv_from_to                                         210     214      +4
get_next_block                                      1795    1799      +4
display_topmem_process_list                         1117    1121      +4
logread_main                                         484     487      +3
buffer_fill_and_print                                 73      76      +3
kill_main                                            687     689      +2
ll_remember_index                                    240     241      +1
do_stats                                             452     453      +1
if_readconf                                          166     165      -1
display_process_list                                1192    1191      -1
run_applet_and_exit                                  507     505      -2
print_signames                                        33      31      -2
parse_one_line                                      1092    1090      -2
find_out_spec                                         57      55      -2
add_ksymoops_symbols                                 421     419      -2
ash_main                                            1407    1402      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/8 up/down: 54/-17)            Total: 37 bytes
 2008-05-15 21:30:45 +00:00
Denis Vlasenko
3c96d0258c hdparm: do not lie about supporting -q (quiet) 
hdparm: interpret_standby() shrink
hdparm: make HDIO_GET/SET_QDMA #ifdef more complete
 (by Joe Krahn <krahn AT niehs.nih.gov>)

function                                             old     new   delta
packed_usage                                       23798   23776     -22
process_dev                                         5342    5315     -27
 2008-03-20 13:44:50 +00:00
Denis Vlasenko
284d0faed6 random s/short/int/ 
add_cmd                                             1189    1190      +1
xconnect_ftpdata                                     118     117      -1
data_align                                            86      84      -2
process_files                                       2101    2096      -5
forkexec                                            1345    1334     -11
 2008-02-16 13:18:17 +00:00