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438 Commits

Author SHA1 Message Date
Denys Vlasenko
a0ec4f500c ash: eliminate 16 bytes in bss 
text   data    bss    dec    hexfilename
 841423    441   7572 849436  cf61cbusybox_old
 841430    441   7556 849427  cf613busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-20 12:50:42 +02:00
Denys Vlasenko
42c4b2e3b5 ash: fix var_leak.tests so that it actually catches the NOFORK bug 
+ document the bug better

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 16:13:56 +02:00
Denys Vlasenko
c7f95d23f6 typo fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 15:52:23 +02:00
Denys Vlasenko
238bf187ba ash: fix bug which causes signal6.tests to fail 
function                                             old     new   delta
trapcmd                                              271     277      +6
localcmd                                             277     275      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 15:49:07 +02:00
Denys Vlasenko
e66cf821cf ash,hush: make bare "." set exitcode to 2 
function                                             old     new   delta
dotcmd                                               300     305      +5
builtin_source                                       176     171      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 09:12:53 +02:00
Denys Vlasenko
82731b4b7a ash,hush: make "source" a synonym for . if bash compat is on 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 17:49:52 +02:00
Denys Vlasenko
cd10dc40e4 ash: fix ". empty_file" exitcode. +5 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 17:10:46 +02:00
Denys Vlasenko
82dd14a510 ash: use CONFIG_FEATURE_EDITING_MAX_LEN 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 10:10:01 +02:00
Denys Vlasenko
7c1ed9fbde ash: fix signal5.tests 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 04:42:40 +02:00
Colin Watson
3963d943f8 ash: refresh stack pointers after makestrspace in rmescapes 
Without this, rmescapes sometimes returns random garbage while
performing parameter expansions such as ${foo#bar}, in the event that
the allocation of r happens to need to reallocate the stack and hence
invalidate str and p.  I'd love to provide a test case but unfortunately
it's dependent on exact stack layout, so I don't have anything simpler
than the situation described in
https://bugs.launchpad.net/ubuntu/+source/partman-base/+bug/527401/comments/23
which involved a sequence of foo="${foo#*, }" expansions on a long
string inside our RAID configuration tool.

The same fix has been in dash since 2007-09-26, contributed by Roy
Marples <uberlord@gentoo.org>.  I actually came up with it independently
almost to the character, but then synced it up with the variable naming
used in dash when I noticed that change afterwards.

Signed-off-by: Colin Watson <cjwatson@ubuntu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-04-26 14:21:27 +02:00
Denys Vlasenko
023a08f229 ash: line up builtin table. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-26 15:53:33 +01:00
Denys Vlasenko
496d5bf4c6 ash: trap with bad signal name should not abort 
function                                             old     new   delta
trapcmd                                              236     271     +35

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-26 15:52:24 +01:00
Denys Vlasenko
1497484839 ash,hush: make it possible to build them individually 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-23 01:08:26 +01:00
Denys Vlasenko
b76356b28e ash: fix quadratic matching slowdown is ${v/*foo*/repl} (really bad one) 
It is especially bad with patterns starting with "*".

With ASH_OPTIMIZE_FOR_SIZE=y, only those are optimized, +few bytes:
   text    data     bss     dec     hex filename
 836337     441    7564  844342   ce236 busybox_old
 836341     441    7564  844346   ce23a busybox_unstripped

With ASH_OPTIMIZE_FOR_SIZE off, we also optimize patterns _ending_ with "*",
which costs about 80 bytes:
   text    data     bss     dec     hex filename
 836656     441    7564  844661   ce375 busybox_old
 836732     441    7564  844737   ce3c1 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-13 16:19:04 +01:00
Denys Vlasenko
f3c742f925 hush: use ash's ulimit builtin; make it more more bash0like while at it 
Based on a patch by Tobias Klauser <tklauser@distanz.ch>

function                                             old     new   delta
shell_builtin_ulimit                                   -     498    +498
limits_tbl                                            33      88     +55
ulimit_opt_string                                      -      38     +38
bltins1                                              288     300     +12
limits_name                                          127       -    -127
ulimitcmd                                            415       7    -408
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 2/1 up/down: 603/-535)           Total: 68 bytes
   text    data     bss     dec     hex filename
 839229     453    6828  846510   ceaae busybox_old
 839423     453    6828  846704   ceb70 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-06 20:12:00 +01:00
Denys Vlasenko
4b1100edd8 *: use NULL for null pointers 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-05 14:10:54 +01:00
Denys Vlasenko
153fcaa6c1 Replace __uClinux__ define with !BB_MMU 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-02-21 05:17:41 +01:00
Denys Vlasenko
7426920461 fix bug 1087. Fix by Leonid (lly.dev AT gmail.com) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-02-21 01:26:42 +01:00
Denys Vlasenko
25d9b91d94 shell/read: check that variable names are sane 
function                                             old     new   delta
shell_builtin_read                                  1000    1055     +55
parse_command                                       1460    1463      +3
builtin_umask                                        121     123      +2
is_well_formed_var_name                               73      66      -7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-13 18:22:35 +01:00
Denys Vlasenko
03dad22f8a hush: use ash's read builtin 
function                                             old     new   delta
shell_builtin_read                                     -    1000   +1000
set_local_var_from_halves                              -      24     +24
setvar2                                                -       7      +7
...
popstring                                            140     134      -6
ash_main                                            1375    1368      -7
setvar                                               184     174     -10
arith_set_local_var                                   36       -     -36
builtin_read                                        1096     185    -911
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 5/23 up/down: 1038/-1007)        Total: 31 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-12 23:29:57 +01:00
Denys Vlasenko
7306727d1b shell: split read builtin from ash 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-12 22:11:24 +01:00
Denys Vlasenko
f2c8aa6676 libbb: introduce and use monotonic_ms 
function                                             old     new   delta
monotonic_ms                                           -      60     +60
process_stdin                                        433     443     +10
display_speed                                         85      90      +5
nmeter_main                                          672     674      +2
builtin_type                                         114     116      +2
bb__parsespent                                       117     119      +2
ifplugd_main                                        1110    1109      -1
acpid_main                                           441     440      -1
chat_main                                           1361    1359      -2
doCommands                                          2458    2449      -9
arpping                                              466     450     -16
run_command                                          268     234     -34
readcmd                                             1072    1034     -38
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 5/7 up/down: 81/-101)           Total: -20 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-12 12:52:30 +01:00
Denys Vlasenko
8cd04d1cb6 ash: fix for read $IFS splitting. Closes bug 235 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-08 15:44:07 +01:00
Chris Metcalf
c3c1fb676b ash: fix mishandling of bash-style redirects 
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-08 13:18:06 +01:00
Denys Vlasenko
46a1477107 ash: trivial optimization -6 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-10 21:27:13 +01:00
Denys Vlasenko
e9ac32a067 ash: fix double comma in initializer 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-05 02:01:25 +01:00
Michael Abbott
359da5e3be ash: implement set -o pipefail (conditional on bash compat). +39 bytes 
Signed-off-by: Michael Abbott <michael@araneidae.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-04 23:03:29 +01:00
Denys Vlasenko
285ad155c4 ash: preparatory work for pipefail and code shrink. -44 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-04 23:02:27 +01:00
Denys Vlasenko
7a7b034482 ash: re-enable SIGHUP on entry. Closes bug 771. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-04 04:18:31 +01:00
Denys Vlasenko
8eda4a9005 ash: straighten up a bit of code in varvalue() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-30 12:16:17 +01:00
Denys Vlasenko
2ce42e98d7 ash: more cosmetics and cleanups 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-29 02:18:13 +01:00
Denys Vlasenko
068d386a6c ash: cosmetics, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-29 01:41:11 +01:00
Denys Vlasenko
76bc2d6deb ash: remove last "signed char"; make SIT() clearer. -12 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-29 01:37:46 +01:00
Denys Vlasenko
0337e038a9 ash: randmconfig fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-29 00:12:30 +01:00
Denys Vlasenko
cd71683ae6 ash: remake strange signed char machinery to be unsigned. -57 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-28 22:14:02 +01:00
Denys Vlasenko
8131eea3dc *: introduce and use ffulsh_all() 
function                                             old     new   delta
buffer_fill_and_print                                179     196     +17
fflush_all                                             -       9      +9
spawn                                                 87      92      +5
rtcwake_main                                         455     453      -2
...
alarm_intr                                            93      84      -9
readcmd                                             1072    1062     -10
bb_ask                                               345     333     -12
more_main                                            845     832     -13
flush_stdout_stderr                                   42      23     -19
xfflush_stdout                                        27       -     -27
flush_stderr                                          30       -     -30
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 2/50 up/down: 31/-397)         Total: -366 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-02 14:19:51 +01:00
Denys Vlasenko
36df04837a randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-19 16:07:28 +02:00
Denys Vlasenko
76ace254e1 ash,hush: fix $RANDOM in children being repeated 
function                                             old     new   delta
next_random                                           46      68     +22
forkshell                                            248     263     +15
expand_vars_to_list                                 2118    2131     +13
run_pipe                                            1775    1782      +7
popstring                                            134     140      +6
builtin_umask                                        123     121      -2
ash_main                                            1356    1336     -20
get_local_var_value                                  125     104     -21
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/3 up/down: 63/-43)             Total: 20 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-12 15:25:01 +02:00
Denys Vlasenko
e7670ff81d ash: use bbox wrappers for malloc etc instead of homegrown ones 
function                                             old     new   delta
popstring                                            134     140      +6
ckmalloc                                               9       -      -9
ckstrdup                                              22       -     -22
ckrealloc                                             24       -     -24
ckzalloc                                              28       -     -28
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 1/0 up/down: 6/-83)             Total: -77 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-11 00:45:25 +02:00
Denys Vlasenko
0e5e4eaf7b ash: trivial shrink by using smaller int 
function                                             old     new   delta
copynode                                             197     196      -1
calcsize                                             127     126      -1
nodesize                                              54      27     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-29)             Total: -29 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-11 00:36:20 +02:00
Denys Vlasenko
3ea2e82dc7 ash: factor out $RANDOM support 
function                                             old     new   delta
next_random                                            -      46     +46
ash_main                                            1361    1356      -5
change_random                                        132      97     -35
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 46/-40)              Total: 6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-09 20:59:04 +02:00
Denys Vlasenko
adf922ec28 *: a few more NOINLINEs 
function                                             old     new   delta
print_linkinfo                                         -     815    +815
do_msg                                                 -     783    +783
INET_setroute                                          -     757    +757
varvalue                                               -     746    +746
do_sem                                                 -     637    +637
inflate_codes                                          -     617    +617
INET6_setroute                                         -     491    +491
edir                                                   -     370    +370
sync_cursor                                            -     298    +298
update_utmp                                            -     246    +246
searchLines                                            -     165    +165
setup_alarm                                            -     144    +144
may_wakeup                                             -     101    +101
getNum                                               566     371    -195
refresh                                             1166     848    -318
rtcwake_main                                         809     479    -330
getty_main                                          2396    1921    -475
chpst_main                                          1373     746    -627
inflate_unzip_internal                              1335     567    -768
evalvar                                             1384     612    -772
ipaddr_list_or_flush                                2160    1246    -914
route_main                                          1585     245   -1340
ipcs_main                                           2523    1049   -1474
------------------------------------------------------------------------------
(add/remove: 13/0 grow/shrink: 0/10 up/down: 6170/-7213)    Total: -1043 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-08 14:35:37 +02:00
Denys Vlasenko
57ce977a97 ash: compile breakage fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-08 04:19:14 +02:00
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
Cristian Ionescu-Idbohrn
301f5ecb8d ash: error out on ${#1#}, ${#$11}, ${#11#} 
Signed-off-by: Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-05 02:07:23 +02:00
Denys Vlasenko
4d8873f997 ash: document where we accept invalid syntax. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-04 03:14:41 +02:00
Denys Vlasenko
76622dbd16 ash: code shrink 
function                                             old     new   delta
ulimitcmd                                            489     415     -74

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-04 01:14:19 +02:00
Denys Vlasenko
c34c033c42 ash,hush: share string 
function                                             old     new   delta
optschanged                                          133     139      +6
hush_main                                            997     982     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 6/-15)              Total: -9 bytes
   text   data    bss    dec    hexfilename
 823160    445   7668 831273  caf29busybox_old
 823102    445   7668 831215  caeefbusybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-29 12:25:30 +02:00
Denys Vlasenko
db9c57eed1 libbb/lineedit: fix the case when we configured history to have 0 lines 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-27 02:48:53 +02:00
Denys Vlasenko
e74aaf9385 ash,hush: make trap output short signal names, without SIG prefix 
function                                             old     new   delta
evalvar                                             1373    1371      -2
builtin_trap                                         457     441     -16
trapcmd                                              260     236     -24

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-27 02:05:45 +02:00