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57 Commits

Author SHA1 Message Date
Denys Vlasenko
3f11f35124 libbb: make spawn() print "can't execute '%s'" on execv error 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-08 23:28:29 +02:00
Denys Vlasenko
606291beab *: more portability fixes by Dan Fandrich 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-23 23:15:43 +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
83518d18a3 Compatibility fixes: 
grep: support -z
find: support --mindepth
  together +45 bytes
cpio: support -p (configurable, +230 bytes)
libbb: tweaks for cpio
 2009-03-20 22:17:13 +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
d1660cb9ad ash: fix a bug in standalone mode (corrupted getopt() state) 2008-10-20 07:52:33 +00:00
Denis Vlasenko
d48e81f0cd mdev: do not follow symlinks in /sys (as was intended prior to rev 18811). 
If this breaks things, please document why!
mdev,init: use shared code for fd sanitization

function                                             old     new   delta
bb_daemonize_or_rexec                                155     172     +17
mdev_main                                            500     505      +5
init_main                                            907     856     -51
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 22/-51)            Total: -29 bytes
 2008-07-06 07:00:11 +00:00
Denis Vlasenko
82604e9730 revert last two commits. vfork cannot be used in subroutine, 
it trashes stack on return
 2008-07-01 15:59:42 +00:00
Denis Vlasenko
58d60c3333 *: introduce and use xfork() 
function                                             old     new   delta
xfork                                                  -      20     +20
msh_main                                            1377    1380      +3
mod_process                                          455     446      -9
forkexit_or_rexec                                     30      17     -13
expand_variables                                    1434    1421     -13
open_transformer                                      91      76     -15
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/4 up/down: 23/-50)            Total: -27 bytes
 2008-07-01 11:11:24 +00:00
Denis Vlasenko
3da5572bfa *: introduce and use xvfork() 
function                                             old     new   delta
time_main                                           1052    1285    +233
crontab_main                                         623     856    +233
ifupdown_main                                       2202    2403    +201
xvfork                                                 -      20     +20
passwd_main                                         1049    1053      +4
grave                                               1068    1066      -2
script_main                                          935     921     -14
vfork_or_die                                          20       -     -20
vfork_compressor                                     206     175     -31
open_as_user                                         109       -    -109
popen2                                               218       -    -218
edit_file                                            910     690    -220
run_command                                          268       -    -268
------------------------------------------------------------------------------
(add/remove: 1/4 grow/shrink: 4/4 up/down: 691/-882)         Total: -191 bytes
 2008-07-01 10:40:41 +00:00
Denis Vlasenko
defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on 
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
 2008-06-27 02:52:20 +00:00
Bernhard Reutner-Fischer
636a1f85e8 - use EXIT_{SUCCESS,FAILURE}. No object-code changes 2008-05-19 09:29:47 +00:00
Denis Vlasenko
867bd37c7f fix english in comment 2008-04-13 02:27:39 +00:00
Denis Vlasenko
7465dbcf2a ash: speed up NOFORK code in ash by eliminating second find_applet(). 
some code reduction along the way.

function                                             old     new   delta
run_list                                            1971    1981     +10
run_nofork_applet_prime                              181     182      +1
unsetcmd                                              97      96      -1
delete_cmd_entry                                      54      53      -1
describe_command                                     399     397      -2
cmdlookup                                            152     150      -2
evaltreenr                                           602     599      -3
evaltree                                             602     599      -3
clearcmdentry                                        101      98      -3
cdcmd                                                675     672      -3
hashcmd                                              305     301      -4
find_command                                         933     910     -23
evalcommand                                         1371    1229    -142
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/11 up/down: 11/-187)         Total: -176 bytes
 2008-04-13 02:25:53 +00:00
Denis Vlasenko
cb448fe01b libbb: introduce and use xrename and rename_or_warn. 2008-02-17 14:28:53 +00:00
Denis Vlasenko
9772816570 *: move getopt reset code to better place(s) 2008-01-28 22:57:10 +00:00
Denis Vlasenko
c4e4be9414 tentatively fix getopt state corruption for NOFORK applets 2008-01-27 22:39:55 +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
745cd17926 Further optimize applet tables; prettify build output 
text    data     bss     dec     hex filename
 775923     929    9100  785952   bfe20 busybox_old
 775565     929    9100  785594   bfcba busybox_unstripped
 2007-11-29 03:31:20 +00:00
Denis Vlasenko
1aa7e477b1 reorganize applet table. Eliminates pointers to names. 
Should be a big win for libbusybox. busybox wins too:

   text    data     bss     dec     hex filename
 776524     929    9100  786553   c0079 busybox_old
 775903     929    9100  785932   bfe0c busybox_unstripped
 2007-11-28 06:49:03 +00:00
Denis Vlasenko
82d38dab91 get rid of global "struct bb_applet *current_applet" 2007-10-10 14:38:47 +00:00
Denis Vlasenko
0c97c9d437 'simple' error message functions by Loic Grenie <loic.grenie@gmail.com>. 
263 bytes saved.
 2007-10-01 11:58:38 +00:00
Denis Vlasenko
367960ba9a make standalone httpd work on NOMMU machines 2007-08-18 14:20:21 +00:00
Denis Vlasenko
a1b16f4d5c start_stop_daemon: NOMMU fix; smaller fixes 2007-07-31 17:09:44 +00:00
Denis Vlasenko
d8540f71ac init: make sure fd 0,1,2 are not closed, + related optimizations. 
init_main                                            929     920      -9
bb_daemonize_or_rexec                                145     127     -18
 2007-06-14 07:53:06 +00:00
Denis Vlasenko
bdbbb7ec49 make busybox --install work even if /proc/self/exe doesn't exist 
# size busybox_old busybox_unstripped
   text    data     bss     dec     hex filename
 680095    2704   15648  698447   aa84f busybox_old
 680099    2704   15648  698451   aa853 busybox_unstripped
 2007-06-08 15:02:55 +00:00
Denis Vlasenko
b055001b6a hush: fix handling of unmatched ${name (without closing '}') - 
was eating all remaining input, potentially megabytes.
nofork: save/restore die_jmp too
nofork: use -2222 instead of -111 as "special" return valur for zero
(-111 is used by some applets. -2222 won't fit in exitcode and thus safer)
 2007-05-24 12:18:16 +00:00
Denis Vlasenko
96f67dc69d more compile fixes from randomconfig run 2007-05-17 13:02:41 +00:00
Denis Vlasenko
18e19f2b0d hush: fix nofork + ctrl-Z clobbering of globals 2007-04-28 16:43:18 +00:00
Denis Vlasenko
f5294e1f4c hush: use NOFORK applets as appropriate. Net reduction of code size. 2007-04-14 10:09:57 +00:00
Denis Vlasenko
831a20f512 pass a copy of argv[i] to NOFORK applets (they may permute it etc). 
set/save/restore more shared global variables whan call one applet from another
 2007-04-12 12:27:32 +00:00
Denis Vlasenko
d571c08c25 fix misplaced #if 2007-04-11 07:26:56 +00:00
Denis Vlasenko
473dae080a add more convenient defines for [NO]MMU: 
"#ifndef BB_NOMMU" is a double negative
 2007-04-11 07:04:23 +00:00
Denis Vlasenko
f1a7141cfc random NOMMU fixes. compressed --help really does work for NOMMU! /me happy 2007-04-10 23:32:37 +00:00
Denis Vlasenko
80d14beae9 Rename two config options: 
FEATURE_SH_STANDALONE_SHELL => FEATURE_SH_STANDALONE
FEATURE_EXEC_PREFER_APPLETS => FEATURE_PREFER_APPLETS
Make SH_STANDALONE depend on PREFER_APPLETS.
getopt.c: more randomconfig-induced fixes
 2007-04-10 23:03:30 +00:00
Denis Vlasenko
c6758a07c6 make compressed help code NOMMU- and NOFORK-friendly - 
no forking anymore, bunzip2 unpack routine now does all it in memory.
 2007-04-10 21:40:19 +00:00
Denis Vlasenko
335b63d8d1 make a few struct bb_applet members conditional 
rename sllep_and_die -> xfunc_die
make fflush_stdout_and_exit NOFORK-safe
fix some buglets found by randomconfig
 2007-04-10 21:38:30 +00:00
Denis Vlasenko
3f3aa2a57d make xfunctions optionally longjump instead of exit. 
use it for making NOFORK more practical.
touch: make it a NOFORK applet
 2007-04-09 21:35:07 +00:00
Denis Vlasenko
cd7001f705 factor out NOFORK/NOEXEC code from find. Use it for xargs too. 2007-04-09 21:32:30 +00:00
Denis Vlasenko
53d445aa75 wait4pid: if passed with pid < 0, do not set errno - it is already set by exec! 2007-04-09 13:21:33 +00:00
Denis Vlasenko
7e754f12d3 Implement first instance of NOFORK applet - echo 
find: use NOFORK/NOEXEC; small -exec buglet also eliminated
vfork_daemon_rexec: honor PREFER_APPLETS
echo: small size improvements

find -exec echo {} \; with PREFER_APPLETS=y runs 4 times faster
 2007-04-09 13:04:50 +00:00
Denis Vlasenko
afa7023b46 zcip: make it work on NOMMU (+ improve NOMMU support machinery) 
fsck: fix bad English in a comment
 2007-03-26 17:25:33 +00:00
Denis Vlasenko
53091ecd20 Attempt to get more applets compile for NOMMU. 
TODO_config_nommu documents what I managed to compile so far
(yay! msh works! cool). inetd, telnetd, httpd still do not compile. TODO
Also make fork(), daemon() produce warnings on compile stage
(in addition to erros on link stage).
 2007-03-26 13:35:09 +00:00
Denis Vlasenko
bb7fcb4229 libbb: rework NOMMU helper API so that it makes more sense 
and easier to use. Doesn't compile - need two more commits.
 2007-03-26 13:20:04 +00:00
Denis Vlasenko
9067f13be0 NOMMU re-exec trick shuld not depend on existence of "don't daemonize" 
option for every affected applet (and dnsd, for example, don't have one).
Thus rework re-exec support to not require it. Code got smaller too.
 2007-03-24 12:11:17 +00:00
Denis Vlasenko
9af7c9d6b6 openvt,getty,vfork_daemon_rexec,mount: tighten up fd cleanup code 
(will close all fd's > 2 on daemonization now)
getty: fix "getty -" support, and also do not try to chown/chmod "-"
telnetd: fix "lost ctty" bug
Yet another attempt on saner function names:
bb_sanitize_server_stdio(0/1) -> bb_sanitize_stdio() + bb_daemonize();
 2007-01-19 21:19:35 +00:00
Denis Vlasenko
bf0a201008 style fixes 
last xcalloc replaced by xzalloc
 2006-12-26 10:42:51 +00:00
Denis Vlasenko
55a994055f lsmod: repair indentation 
httpd: ifdef CONFIG -> if ENABLE (shorted, catched typos)
 2006-09-30 20:41:44 +00:00
Bernhard Reutner-Fischer
d591a360d3 - merge -r15463:15564 from busybox_scratch branch through these changesets: 
------------------------------------------------------------------------
r15465 | aldot | 2006-06-21 20:48:06 +0200 (Wed, 21 Jun 2006) | 3 lines

- use CONFIG_BUSYBOX_EXEC_PATH as before it one was broken by a recent revert.
- use xchdir() since all is invain if it fails there anyways, supposedly

------------------------------------------------------------------------
r15466 | aldot | 2006-06-21 20:55:16 +0200 (Wed, 21 Jun 2006) | 2 lines

- adjust docs to take CONFIG_BUSYBOX_EXEC_PATH into account.

------------------------------------------------------------------------
r15467 | aldot | 2006-06-21 21:31:24 +0200 (Wed, 21 Jun 2006) | 18 lines

- partial fallout of my TREE_USED touchup against gcc-4.2: rip unused vars, save
s 144 bytes
   text    data     bss     dec     hex filename
 862434   10156  645924 1518514  172bb2 busybox.old
 862322   10156  645892 1518370  172b22 busybox
function                                             old     new   delta
z_len                                                  4       -      -4
textend                                                4       -      -4
part_nb                                                4       -      -4
insize                                                 4       -      -4
ifile_size                                             4       -      -4
do_link                                                4       -      -4
new_text                                              70      60     -10
ipaddr_list_link                                      33      23     -10
gzip_main                                            898     822     -76
------------------------------------------------------------------------------
(add/remove: 0/6 grow/shrink: 0/3 up/down: 0/-120)           Total: -120 bytes


------------------------------------------------------------------------
r15468 | aldot | 2006-06-21 21:43:05 +0200 (Wed, 21 Jun 2006) | 19 lines

- remove useless global exports
function                                             old     new   delta
rpm_main                                             940    1601    +661
rpm_getstring                                        107     112      +5
rpm_getint                                           148     153      +5
loop_through_files                                   103     106      +3
fileaction_dobackup                                  115     113      -2
fileaction_list                                        5       -      -5
rpm_getcount                                          42       -     -42
extract_cpio_gz                                      161       -    -161
rpm_gettags                                          504       -    -504
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 4/1 up/down: 674/-714)          Total: -40 bytes

   text    data     bss     dec     hex filename
 862322   10156  645892 1518370  172b22 busybox.old
 862290   10156  645892 1518338  172b02 busybox


------------------------------------------------------------------------
r15555 | aldot | 2006-06-30 14:10:11 +0200 (Fri, 30 Jun 2006) | 22 lines

- shrink syslog a little bit, move a big buffer (for 'line') off the bss, fold s
emaphore stuff into single caller manually.
  stats:
function                                             old     new   delta
logMessage                                           395     427     +32
message                                             1245    1257     +12
opts                                                   -       4      +4
small                                                  1       -      -1
local_logging                                          4       -      -4
doRemoteLog                                            4       -      -4
circular_logging                                       4       -      -4
syslogd_main                                        1299    1285     -14
static.res                                            36      16     -20
.rodata                                           186650  186586     -64
static.line                                         1025       -   -1025
------------------------------------------------------------------------------
(add/remove: 1/5 grow/shrink: 2/3 up/down: 48/-1136)        Total: -1088 bytes
cow@s37:~/src/busybox_scratch$ size sysklogd/syslogd.o{.orig,}
   text    data     bss     dec     hex filename
   3723     348    5242    9313    2461 sysklogd/syslogd.o.orig
   3697     348    4188    8233    2029 sysklogd/syslogd.o

==============================================================================
Overall bloatcheck for the changeset mentioned above:
function                                             old     new   delta
rpm_main                                             953    1608    +655
logMessage                                           395     427     +32
message                                             1245    1257     +12
opts                                                   -       4      +4
rpm_getstring                                        107     110      +3
rpm_getint                                           148     151      +3
loop_through_files                                   103     104      +1
small                                                  1       -      -1
fileaction_dobackup                                  115     113      -2
z_len                                                  4       -      -4
textend                                                4       -      -4
part_nb                                                4       -      -4
local_logging                                          4       -      -4
insize                                                 4       -      -4
ifile_size                                             4       -      -4
do_link                                                4       -      -4
doRemoteLog                                            4       -      -4
circular_logging                                       4       -      -4
fileaction_list                                        5       -      -5
new_text                                              70      60     -10
ipaddr_list_link                                      33      23     -10
clear_bufs                                            31      21     -10
syslogd_main                                        1287    1273     -14
builtin_help                                         190     176     -14
static.res                                            36      16     -20
builtin_source                                       229     199     -30
rpm_getcount                                          42       -     -42
gzip_main                                            842     786     -56
.rodata                                           227176  227112     -64
lash_main                                            609     527     -82
busy_loop                                           3883    3739    -144
extract_cpio_gz                                      155       -    -155
rpm_gettags                                          501       -    -501
static.line                                         1025       -   -1025
------------------------------------------------------------------------------
(add/remove: 1/15 grow/shrink: 6/12 up/down: 710/-2221)     Total: -1511 bytes
 2006-08-20 17:35:13 +00:00
Rob Landley
d9a761d9c3 Revert svn 15333. If you vfork, you must either exec or exit. (The parent is 
blocked until you do so.)
 2006-06-16 16:35:53 +00:00