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68 Commits

Author SHA1 Message Date
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
5a72b0cd74 runsv: code shrink: use single handler function for SIGTERM and SIGCHLD 
function                                             old     new   delta
s_chld_term                                            -      36     +36
runsv_main                                          1677    1662     -15
s_child                                               22       -     -22
s_term                                                29       -     -29
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 0/1 up/down: 36/-66)            Total: -30 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-05 16:36:21 +02:00
Denys Vlasenko
5dadd497ff runsv: robustify signal handling - SIGTERM to child between vfork and exec could mess things up 
While at it, rename bb_signals_recursive_norestart() to bb_signals_norestart():
"recursive" was implying we are setting SA_NODEFER allowing signal handler
to be entered recursively, but we do not do that.

function                                             old     new   delta
bb_signals_norestart                                   -      70     +70
startservice                                         380     394     +14
bb_signals_recursive_norestart                        70       -     -70
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/0 up/down: 84/-70)             Total: 14 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-05 16:20:05 +02:00
Denys Vlasenko
d3e1090308 tcp/udpsvd: robustify SIGCHLD handling 
function                                             old     new   delta
if_verbose_print_connection_status                     -      40     +40
tcpudpsvd_main                                      1798    1794      -4
connection_status                                     31       -     -31
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 40/-35)              Total: 5 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-05 15:24:04 +02:00
Denys Vlasenko
3c13da3dab libbb: introduce and use xgettimeofday(), do not truncate 64-bit time_t in shells 
function                                             old     new   delta
xgettimeofday                                          -      11     +11
get_local_var_value                                  280     281      +1
svlogd_main                                         1323    1322      -1
change_epoch                                          67      66      -1
timestamp_and_log                                    461     458      -3
hwclock_main                                         301     298      -3
fmt_time_bernstein_25                                135     132      -3
step_time                                            331     326      -5
script_main                                         1207    1202      -5
machtime                                              34      28      -6
curtime                                               61      54      -7
ts_main                                              423     415      -8
nmeter_main                                          761     751     -10
gettime1900d                                          67      46     -21
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/12 up/down: 12/-73)           Total: -61 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-30 23:48:01 +01:00
Denys Vlasenko
77a51a2709 randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-29 16:53:11 +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
Denys Vlasenko
be5a505d77 Remove syscall wrappers around clock_gettime, closes 12091 
12091 "Direct use of __NR_clock_gettime is not time64-safe".

function                                             old     new   delta
runsv_main                                          1698    1712     +14
startservice                                         378     383      +5
get_mono                                              31      25      -6
date_main                                            932     926      -6
gettimeofday_ns                                       17       -     -17
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/2 up/down: 19/-29)            Total: -10 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-24 16:26:55 +02:00
Alistair Francis
ad27d44ebe runsv: Use 64 prefix syscall if we have to 
Some 32-bit architectures no longer have the 32-bit time_t syscalls.
Instead they have suffixed syscalls that returns a 64-bit time_t. If
the architecture doesn't have the non-suffixed syscall and is using a
64-bit time_t let's use the suffixed syscall instead.

This fixes build issues when building for RISC-V 32-bit with 5.1+ kernel
headers.

If an architecture only supports the suffixed syscalls, but is still
using a 32-bit time_t report a compilation error. This avoids us have to
deal with converting between 64-bit and 32-bit values. There are
currently no architectures where this is the case.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-08 16:31:54 +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
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
bcb5764822 runsv: update to match version 2.1.2 of runit 
Backport from upstream versions:
2.1.0
Thu, 24 Sep 2009 22:49:33 +0000
  * runsv.c: exit with error if [log/]supervise/control exists, but is
    not a fifo.
    [Code abstracted into a separate function to make it more compact
    for BusyBox.]

1.9.0
Mon, 05 May 2008 22:00:13 +0000
  * runsv.c: create temporary new status files for log/supervise/
    actually in log/supervise/.

1.7.2
Tue, 21 Nov 2006 15:13:47 +0000
  * runsv.c: really don't act on commands in state finish; minor.

function                                             old     new   delta
open_control                                           -     135    +135
update_status                                        553     612     +59
custom                                               223     242     +19
ctrl                                                 426     422      -4
warn_cannot                                           21      10     -11
runsv_main                                          1786    1662    -124
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/3 up/down: 213/-139)           Total: 74 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-05-15 19:44:48 +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
0863e1a576 runit/*: convert to new-style "one file" applets 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-19 00:41:28 +02:00
Denys Vlasenko
ab3964db4e libbb: introduce kernel-style BUILD_BUG_ON() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-13 14:50:20 +02:00
Denys Vlasenko
7f3a2a2256 join some common strings, -400 bytes 
function                                             old     new   delta
print_intel_cstates                                  499     511     +12
file_insert                                          355     364      +9
dpkg_main                                           2944    2940      -4
ifenslave_main                                       645     640      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 21/-9)              Total: 12 bytes
   text	   data	    bss	    dec	    hex	filename
 937564	    932	  17676	 956172	  e970c	busybox_old
 937164	    932	  17676	 955772	  e957c	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-08 11:24:44 +02:00
Thomas Petazzoni
af4f0e48ec libbb: use <poll.h> instead of <sys/poll.h> 
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-10-16 19:59:45 +02:00
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
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
Dan Fandrich
dc50676cce Move stpcpy replacement function into libbb 
Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-13 18:37:12 +01:00
Denys Vlasenko
05e8605ab8 remove runit/runit_lib.c 
function                                             old     new   delta
runsv_main                                          1770    1786     +16
svstatus_get                                         176     188     +12
sv_main                                             1180    1186      +6
runsvdir_main                                        683     689      +6
processorstart                                       385     391      +6
control                                              126     132      +6
logdir_open                                         1184    1187      +3
lock_exnb                                             14       -     -14
lock_ex                                               14       -     -14
open_write                                            17       -     -17
open_read                                             17       -     -17
------------------------------------------------------------------------------
(add/remove: 0/5 grow/shrink: 7/0 up/down: 55/-62)             Total: -7 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-13 12:53:27 +02:00
Denys Vlasenko
e09bff3341 runit_lib: remove/inline a few more things 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-05 19:28:29 +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
e992bae6f9 *: remove a few more cases of argc usage. -89 bytes. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-28 15:18:53 +01:00
Denys Vlasenko
7bb346f23c *: use {i,u}toa() where appropriate 
function                                             old     new   delta
startservice                                         377     363     -14
setari_u                                              54      40     -14
ash_main                                            1375    1361     -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-42)             Total: -42 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-06 22:09:50 +02:00
Earl Chew
80a3418b8c runsv: run ./finish with parameters (runit compat) 
function                                             old     new   delta
startservice                                         288     377     +89
runsv_main                                          1763    1783     +20

Signed-off-by: Earl Chew <earl_chew@agilent.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-08-02 02:23:27 +02:00
Denys Vlasenko
e46601d8a3 runsv: rename field in a struct to not collide with other name 
no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-15 00:21:49 +02:00
Denys Vlasenko
8f24f9812d stop using non-standard macro, use WEXITSTATUS instead 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-06-07 16:02:00 +02:00
Denis Vlasenko
31773b71e8 runsv: another tiny optimization 
function                                             old     new   delta
startservice                                         297     288      -9
ctrl                                                 435     426      -9
 2009-02-26 12:38:01 +00:00
Denis Vlasenko
f09f4e015b runsv: small optimization 
*: more paranoia around passing NULL to execl[e]

function                                             old     new   delta
custom                                               240     221     -19
 2009-02-26 12:29:59 +00:00
Denis Vlasenko
cab28aa7de init: preparatory patch, no code changes 2009-01-31 01:02:07 +00:00
Denis Vlasenko
3fa36e2350 *: a bit of code shrink 
function                                             old     new   delta
stop_handler                                          41      38      -3
sulogin_main                                         508     504      -4
got_cont                                               4       -      -4
cont_handler                                          11       -     -11
startservice                                         309     297     -12
processorstart                                       423     409     -14
tcpudpsvd_main                                      1861    1843     -18
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/5 up/down: 0/-66)             Total: -66 bytes
 2008-11-09 00:15:11 +00:00
Denis Vlasenko
3854c5ddf4 runsvdir: alternative methon of supporting runsvdir-as-init. +66 bytes. 
*: s/int/pid_t where appropriate
 2008-11-06 22:39:57 +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
Bernhard Reutner-Fischer
636a1f85e8 - use EXIT_{SUCCESS,FAILURE}. No object-code changes 2008-05-19 09:29:47 +00:00
Denis Vlasenko
592d4fe772 selinux/*: -Wunused-parameter fixes 
runsv: make it NOMMU-capable

function                                             old     new   delta
startservice                                         291     313     +22
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 22/0)               Total: 22 bytes
 2008-03-17 09:19:26 +00:00
Denis Vlasenko
68404f13d4 *: add -Wunused-parameter; fix resulting breakage 
function                                             old     new   delta
procps_scan                                         1265    1298     +33
aliascmd                                             278     283      +5
parse_file_cmd                                       116     120      +4
dname_enc                                            373     377      +4
setcmd                                                90      93      +3
execcmd                                               57      60      +3
count_lines                                           72      74      +2
process_command_subs                                 340     339      -1
test_main                                            409     407      -2
mknod_main                                           179     177      -2
handle_incoming_and_exit                            2653    2651      -2
argstr                                              1312    1310      -2
shiftcmd                                             131     128      -3
exitcmd                                               46      43      -3
dotcmd                                               297     294      -3
breakcmd                                              86      83      -3
evalpipe                                             353     349      -4
evalcommand                                         1180    1176      -4
evalcmd                                              109     105      -4
send_tree                                            374     369      -5
mkfifo_main                                           82      77      -5
evalsubshell                                         152     147      -5
typecmd                                               75      69      -6
letcmd                                                61      55      -6
add_cmd                                             1190    1183      -7
main                                                 891     883      -8
ash_main                                            1415    1407      -8
parse_stream                                        1377    1367     -10
alloc_procps_scan                                     55       -     -55
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148)          Total: -94 bytes
   text    data     bss     dec     hex filename
 797195     658    7428  805281   c49a1 busybox_old
 797101     658    7428  805187   c4943 busybox_unstripped
 2008-03-17 09:00:54 +00:00
Denis Vlasenko
d18f52bd18 actually add bb_qsort.c 
*: s/Denis/Denys/
 2008-03-02 12:53:15 +00:00
Denis Vlasenko
cb448fe01b libbb: introduce and use xrename and rename_or_warn. 2008-02-17 14:28:53 +00:00
Denis Vlasenko
25591c322c libbb: introduce bb_signals and bb_signals_recursive, 
which sets same handler for many signals. sig_catch is nuked
(bb_signals_recursive is more descriptive name).
*: use them as appropriate. 

function                                             old     new   delta
bb_signals_recursive                                   -      95     +95
bb_signals                                             -      52     +52
run_command                                          258     273     +15
svlogd_main                                         1368    1377      +9
runsv_main                                          1746    1752      +6
runsvdir_main                                       1643    1646      +3
UNSPEC_print                                          64      66      +2
time_main                                           1128    1127      -1
...
resize_main                                          246     210     -36
sig_catch                                             63       -     -63
set_fatal_sighandler                                  85      14     -71
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 5/24 up/down: 182/-548)        Total: -366 bytes
 2008-02-16 22:58:56 +00:00
Denis Vlasenko
3718832a15 *: more readable handling of pipe fds. No code changes. 2008-02-16 13:20:56 +00:00
Denis Vlasenko
847fa779af *: tidy up usage of char **environ 2008-01-28 22:45:43 +00:00
Denis Vlasenko
fb0eba706c libbb: introduce and use safe_waitpid (loops in EINTR) 
*: use more approproate (shorter) versions of wait()

function                                             old     new   delta
safe_waitpid                                           -      48     +48
wait_any_nohang                                        -      17     +17
send_tree                                            365     369      +4
processorstop                                        432     435      +3
text_yank                                            110     108      -2
make_human_readable_str                              202     200      -2
crond_main                                          1368    1366      -2
handle_sigchld                                        49      43      -6
reapchild                                            166     159      -7
custom                                               260     250     -10
checkscript                                          191     177     -14
wait_nohang                                           17       -     -17
wait_pid                                              43       -     -43
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 2/7 up/down: 72/-103)           Total: -31 bytes
 2008-01-02 19:55:04 +00:00
Denis Vlasenko
9b49a5ed85 add -fvisibility=hidden to CC flags, mark XXX_main functions 
EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
 2007-10-11 10:05:36 +00:00
Denis Vlasenko
96e1b38586 introduce and use close_on_exec_on(fd). -50 bytes. 2007-09-30 23:50:48 +00:00
Denis Vlasenko
b925605441 assorted static vars removal 
function                                             old     new   delta
tcpudpsvd_main                                      1829    1839     +10
update_status                                        567     569      +2
sigterm                                                1       -      -1
.........
dhcprelay_signal_handler                               8       -      -8
nfs_strerror                                          60      49     -11
singlemount                                         4579    4564     -15
static.p                                              16       -     -16
svstatus                                              20       -     -20
dhcprelay_xid_list                                    32       -     -32
runsv_main                                          1785    1746     -39
static.buf                                            74      28     -46
svd                                                   56       -     -56
dhcprelay_main                                      1141    1080     -61
------------------------------------------------------------------------------
(add/remove: 0/20 grow/shrink: 2/10 up/down: 12/-386)        Total: -374 bytes
 2007-09-28 10:29:17 +00:00