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850 Commits

Author SHA1 Message Date
Denis Vlasenko
648b44fd78 msh: shrink, mainly by using smallints 
function                                             old     new   delta
synio                                                251     263     +12
filechar                                             310     315      +5
subgetc                                              781     785      +4
brkcontin                                            106     109      +3
...
yylex                                                981     976      -5
execute                                             2513    2508      -5
waitfor                                              321     315      -6
onintr                                               103      97      -6
doset                                                332     326      -6
doexec                                               186     180      -6
yyparse                                               65      57      -8
thenpart                                             135     126      -9
forkexec                                            1379    1370      -9
onecommand                                           457     433     -24
newtp                                                 52      28     -24
command                                             1086    1061     -25
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/23 up/down: 27/-163)         Total: -136 bytes
 2008-02-12 06:04:06 +00:00
Denis Vlasenko
a5f2cd30c9 msh: do not run pipes where last command is a builtin 
msh: code shrink and some renames for better readability
 2008-02-11 18:10:06 +00:00
Denis Vlasenko
83177991c8 hush: die_sllep needs restoring only if job control is on 2008-02-11 08:44:36 +00:00
Denis Vlasenko
08126f665d hush: close-on-exec interactive_fd 2008-02-11 08:39:11 +00:00
Denis Vlasenko
459a5ad410 hush: set CLOEXEC on script file being executed 2008-02-11 08:35:03 +00:00
Denis Vlasenko
4ecfcdcced hush: fix the comment 2008-02-11 08:32:31 +00:00
Denis Vlasenko
c04163a289 hush: reset die_sleep to 0 in child after fork 2008-02-11 08:30:53 +00:00
Denis Vlasenko
991a1da148 ash: fix "orwell bug" 1984. Testcase: 
trap_handler() {
        echo trap
    }
    trap trap_handler USR1
    sleep 3600 &
    while true; do wait; done
 2008-02-10 19:02:53 +00:00
Denis Vlasenko
0ef240d979 hush: small fixes to docs/testsuite 2008-02-10 16:00:30 +00:00
Denis Vlasenko
05743d7949 hush: reinstate cmd handling for NOMMU (with fat big warning). 
hush: fix a case where none of pipe members could be started
  because of fork failure
hush: rename functions: xxx_real -> xxx
hush: try to add a bit more of vfork-friendliness
hush: add rudimentary design docs
hush: add TODO (newly discovered bug with globbing)
 2008-02-10 12:10:08 +00:00
Denis Vlasenko
5c3d2b334a ash: readability enhancement, no code changes 2008-02-03 22:01:08 +00:00
Denis Vlasenko
6e602c4931 msh: also handle EOF/read errors correctly 2008-02-02 18:50:50 +00:00
Denis Vlasenko
80667e30fb msh: fix Ctrl-C handling with line editing 2008-02-02 18:35:55 +00:00
Denis Vlasenko
36fc3cd8bc ash: code readability enhancements, no real code changes 2008-01-29 09:23:49 +00:00
Denis Vlasenko
847fa779af *: tidy up usage of char **environ 2008-01-28 22:45:43 +00:00
Denis Vlasenko
d2c450ce81 hush: report [v]fork failures 
hush: more correct handling of piping
config: add CONFIG_NOMMU
 2008-01-08 20:32:12 +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
Mike Frysinger
08137c28c4 add expected output 2007-12-25 04:35:05 +00:00
Denis Vlasenko
3b4921674e hush: fixlet for NOMMU 
update TODO_config_nommu
 2007-12-24 14:26:57 +00:00
Denis Vlasenko
528a8b9769 cttyhack: trivial build fixlet 2007-12-22 19:57:28 +00:00
Denis Vlasenko
ee87ebf381 fix buglets found by randomconfig 2007-12-21 22:18:16 +00:00
Denis Vlasenko
c794c51a1a msh: reduce global data/bss usage 
(add/remove: 1/5 grow/shrink: 28/6 up/down: 464/-394)          Total: 70 bytes
   text    data     bss     dec     hex filename
 778077     908    7568  786553   c0079 busybox_old
 778330     860    7408  786598   c00a6 busybox_unstripped
 2007-12-16 17:21:29 +00:00
Denis Vlasenko
0163111325 ash: reduce global data/bss usage 
(add/remove: 4/29 grow/shrink: 76/21 up/down: 1007/-1713)    Total: -706 bytes
   text    data     bss     dec     hex filename
 777206    1084    8976  787266   c0342 busybox_old
 778077     908    7568  786553   c0079 busybox_unstripped
 2007-12-16 17:20:38 +00:00
Denis Vlasenko
d7e2e127a9 cttyhack: add missing ';' 
init: remove pointless access() check
 2007-12-10 08:40:29 +00:00
Denis Vlasenko
2afabe8b83 init: remove superfluous forks and messing up with argv[0] 
cttyhack: add stealing of ctty
 2007-12-10 07:06:04 +00:00
Denis Vlasenko
9cb220be9d lineedit: don't violate API if we do simple fgets 
ash: cosmetic style fixes, no code changes
 2007-12-09 10:03:28 +00:00
Denis Vlasenko
ab801874f8 attack the biggest stack users: 
-mkfs_minix_main [busybox_unstripped]:                  4288
-mkfs_minix_main [busybox_unstripped]:                  4276
-grave [busybox_unstripped]:                            4260
(bzip2 users too - not listed)

price we pay in code size increase:
mainSort                                            2458    2515     +57
grave                                               1005    1058     +53
sendMTFValues                                       2177    2195     +18
BZ2_blockSort                                        122     125      +3
mkfs_minix_main                                     3070    3022     -48
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 131/-48)            Total: 83 bytes
 2007-12-02 08:35:37 +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
ed270a5f32 ash: make code simpler, and do not do close(-1) - it's rude 2007-11-26 05:37:07 +00:00
Denis Vlasenko
fe5e23bf75 remove echo_main -> bb_echo indirection 2007-11-24 02:23:51 +00:00
Denis Vlasenko
c3c6659f12 hush: fix segfault in "echo $@" when we have no arguments 2007-11-24 00:22:42 +00:00
Denis Vlasenko
96702ca945 kill lash. "lash" builtin still exists, but it runs hush. 2007-11-23 23:28:55 +00:00
Denis Vlasenko
5bc593ccb8 hush: implement echo builtin 
builtin_echo                                           -      36     +36
bltins                                               384     396     +12
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 48/0)               Total: 48 bytes
 2007-11-23 21:20:21 +00:00
Denis Vlasenko
cccdc4e01a hush: fix $ expansion in redirections, add testcase for that 2007-11-23 21:08:38 +00:00
Denis Vlasenko
835068637e hush: implement test builtin 2007-11-23 13:11:42 +00:00
Denis Vlasenko
f962a0354e hush: plug memory leak 2007-11-23 12:50:54 +00:00
Denis Vlasenko
7d75a96b15 ash: fix bug where redirection of closed fd was leaving it open afterwards. 
redirect                                             983    1024     +41
bb_echo                                              276     301     +25
popredir                                             118     132     +14
evalcommand                                         1163    1176     +13
bbunpack                                             358     366      +8
echocmd                                               13       5      -8
echo_main                                             13       5      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/2 up/down: 101/-16)            Total: 85 bytes
   text    data     bss     dec     hex filename
 774999     962    9236  785197   bfb2d busybox_old
 775084     962    9236  785282   bfb82 busybox_unstripped
 2007-11-22 08:16:57 +00:00
Denis Vlasenko
a6899c3587 lash: fix compile-time warning 2007-11-15 17:47:45 +00:00
Denis Vlasenko
a59f435b5f ash: if tcgetattr(stdin) fails, don't mess with tcsetattr 
ash: size-optimize ulimit's table of limits

   text    data     bss     dec     hex filename
 777345     974    9676  787995   c061b busybox_old
 777253     974    9676  787903   c05bf busybox_unstripped
 2007-10-29 19:17:29 +00:00
Denis Vlasenko
037576d77b read_line_input: fix it to not do any fancy editing if echoing is disabled. 
ash: make read handling both more correct and smaller

read_line_input                                     4037    4101     +64
input_backward                                       140     139      -1
readcmd                                             1079    1070      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 65/-10)             Total: 54 bytes
   text    data     bss     dec     hex filename
 777575    1000    9532  788107   c068b busybox_old
 777629    1000    9532  788161   c06c1 busybox_unstripped
 2007-10-20 18:30:38 +00:00
Denis Vlasenko
0de37e10ed ash: use fdprintf, not dprintf. 
*: trailing whitespace removed
 2007-10-17 11:08:53 +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
82d38dab91 get rid of global "struct bb_applet *current_applet" 2007-10-10 14:38:47 +00:00
Denis Vlasenko
41770226bb ash: revert "cat | jobs" fix, it causes more problems than good 2007-10-07 18:02:52 +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
d65ea39ffc hush: fix glob() abuse. Code was making unfounded assumptions how 
glob() works, and it broke horribly on specific uclibc config.
 2007-10-01 10:02:25 +00:00
Denis Vlasenko
ff0976248a hush: int->smallint for flag vars; make some names more "greppable" 2007-10-01 10:00:45 +00:00
Denis Vlasenko
8412d7959a hush: feeble attempt at making it more NOMMU-friendly 2007-10-01 09:59:47 +00:00
Denis Vlasenko
a0898170d8 hush: stop doing manual acounting of open fd's, kernel can do it for us 2007-10-01 09:59:01 +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
6081868ee3 fix "if (p) free(p)" constructs 2007-09-28 22:07:23 +00:00
Denis Vlasenko
4daad9004d introduce bb_putchar(). saves ~1800 on uclibc (less on glibc). 2007-09-27 10:20:47 +00:00
Denis Vlasenko
46a530626d ash: fix prompt expansion (Natanael Copa <natanael.copa@gmail.com>) 2007-09-24 18:30:02 +00:00
Denis Vlasenko
818322b9b1 *: kill bb_get_last_path_component, replace with two functions 
(one which strips trailing slash and one which does not)
wget: straighten out as a result of above change
   text    data     bss     dec     hex filename
   5056       1       0    5057    13c1 busybox.t4/networking/wget.o
   5022       0       0    5022    139e busybox.t5/networking/wget.o
 2007-09-24 18:27:04 +00:00
Denis Vlasenko
7b70d78de8 ash: remove erroneously applied patch 2007-09-21 22:48:02 +00:00
Denis Vlasenko
f431017535 httpd: optional support for partial downloads 2007-09-21 22:35:18 +00:00
Denis Vlasenko
bcceb0c5a4 ash: s/int/smallint/. -60 bytes. 2007-09-21 18:06:20 +00:00
Denis Vlasenko
87f3b26b3a *: replace select-for-one descriptor with poll, it's smaller. 
$ ./.cmk bloatcheck
function                                             old     new   delta
readit                                               406     364     -42
syslogd_main                                        1249    1206     -43
traceroute_main                                     4115    4060     -55
mysleep                                              112      45     -67
arpping                                              579     441    -138
tftp                                                1575    1182    -393
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-738)           Total: -738 bytes
   text    data     bss     dec     hex filename
 770580    1051   10764  782395   bf03b busybox_old
 769820    1051   10764  781635   bed43 busybox_unstripped
 2007-09-07 13:43:28 +00:00
Denis Vlasenko
d37f22225b libbb,crond,lash: fix getopt32 (don't know how it managed to slip through) 
*: fcntl(fd, F_GETFL) doesn't require third parameter at all.
 2007-08-19 13:42:08 +00:00
Denis Vlasenko
fe7cd642b0 don't pass argc in getopt32, it's superfluous 
(add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes
   text    data     bss     dec     hex filename
 773469    1058   11092  785619   bfcd3 busybox_old
 772644    1058   11092  784794   bf99a busybox_unstripped
 2007-08-18 15:32:12 +00:00
Denis Vlasenko
6ca409e0e4 trylink: produce even more info about final link stage 
trylink: explain how to modify link and drastically decrease amount
  of padding (unfortunately, needs hand editing ATM).
*: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts

size saving: 0.5k
 2007-08-12 20:58:27 +00:00
Denis Vlasenko
dee82b6b78 ash: comment non-obvious code part 2007-07-29 14:05:27 +00:00
Denis Vlasenko
b71c668c57 style fix (stray space before ';') 2007-07-21 15:08:09 +00:00
Denis Vlasenko
d4293c77f1 ash: fix SEGV in forkchild (jp can be NULL). here documents were affected. 2007-07-18 21:35:43 +00:00
Denis Vlasenko
bdc406d15d ash: make "jobs | cat" work like in bash (was giving empty output) 2007-07-15 01:13:25 +00:00
Denis Vlasenko
fcfaf2e18a ash: small size optimization 
function                                             old     new   delta
makejob                                              263     270      +7
setjobctl                                            328     332      +4
jobscmd                                               96      94      -2
stoppedjobs                                           53      50      -3
jobctl                                                 4       1      -3
job_warning                                            4       1      -3
forkshell                                            644     641      -3
cmdloop                                              422     409     -13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/6 up/down: 11/-27)            Total: -16 bytes
   text    data     bss     dec     hex filename
 675392    2740   13968  692100   a8f84 busybox_old
 675380    2740   13968  692088   a8f78 busybox_unstripped
 2007-07-14 18:45:37 +00:00
Denis Vlasenko
8fdc4b7b06 ash: recognize -l as --login equivalent; do not recognize +-login 2007-07-14 11:33:10 +00:00
Denis Vlasenko
40ba9984fd ash: fix for buglet in DEBUG code (Nguyen Thai Ngoc Duy <pclouds@gmail.com>) 2007-07-14 00:48:29 +00:00
Denis Vlasenko
1fc6238ffa devfsd: fix formatting (Tito <farmatito@tiscali.it>) 
ash: fix SEGV if type has zero parameters
 2007-06-25 22:55:34 +00:00
Denis Vlasenko
80b8b39899 Consolidate ARRAY_SIZE macro; remove one unneeded global var (walter harms <wharms@bfs.de>) 2007-06-25 10:55:35 +00:00
Denis Vlasenko
b304eadca8 test: shrink a bit 
function                                             old     new   delta
test_main                                              5     434    +429
bb_test                                              473       -    -473
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/0 up/down: 429/-473)          Total: -44 bytes
   text    data     bss     dec     hex filename
 735073    3028   14408  752509   b7b7d busybox_old
 735029    3028   14408  752465   b7b51 busybox_unstripped
 2007-06-21 13:35:52 +00:00
Denis Vlasenko
ca525b4f24 *: BB_BANNER -> bb_banner (it is not a const or #define)! 
correct_password: explain in detail why it is ok to use bb_banner
fsck_minix: make it print bb version, not it's own (outdated/irrelevant) one

Marginal size difference:
   text    data     bss     dec     hex filename
 679119    2700   15632  697451   aa46b busybox_old
 679091    2700   15632  697423   aa44f busybox_unstripped
 2007-06-13 12:27:17 +00:00
Denis Vlasenko
d67cef2425 hush: fix read builtin to not read ahead past eol and to not use 
insane amounts of stack. Testsuite updated.
 2007-06-13 06:47:47 +00:00
Denis Vlasenko
f5f75c5e82 remove nearly-duplicate PATHs in several places 
function                                             old     new   delta
bb_PATH_root_path                                      -      35     +35
varunset                                              60      58      -2
arith                                               2042    2033      -9
bb_default_root_login_path                            30       -     -30
.rodata                                           128794  128762     -32
which_main                                           152     117     -35
defpathvar                                            40       -     -40
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 0/4 up/down: 35/-148)          Total: -113 bytes
 2007-06-12 22:35:19 +00:00
Denis Vlasenko
15611bb958 A few more string duplicates found & eliminated 
# size busybox_old busybox_unstripped
   text    data     bss     dec     hex filename
 679693    2700   15632  698025   aa6a9 busybox_old
 679523    2700   15632  697855   aa5ff busybox_unstripped
 2007-06-12 08:52:02 +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
42bffbf360 hush: add missing dependencies (Maxime Bizon <mbizon@freebox.fr> (Freebox)) 2007-06-08 08:02:53 +00:00
Denis Vlasenko
fad2b86c9e use "glibc errno" trick not only for ash, but for entire busybox 
(add/remove: 1/1 grow/shrink: 37/37 up/down: 139/-228)        Total: -89 bytes
 2007-05-31 22:16:38 +00:00
Denis Vlasenko
27f79ff03d hush: trivial buglet found by randomconfig testing 2007-05-30 00:55:52 +00:00
Denis Vlasenko
4b924f3a5c whitespace fixes 2007-05-30 00:29:55 +00:00
Denis Vlasenko
b6adbf1be2 usage.c: remove reference to busybox.h 
*: s/include "busybox.h"/include "libbb.h"
 2007-05-26 19:00:18 +00:00
Denis Vlasenko
5a6aeddfa7 xpipe: introduce (saves ~170 bytes) 
udhcp/signalpipe.c: use pipe instead of socketpair.
 2007-05-26 16:44:20 +00:00
Denis Vlasenko
ba7cf260fd hush: fix 'echo abcsleep 5def' + Ctrl-Z and Ctrl-C bugs. +50 bytes of code. 2007-05-25 14:34:30 +00:00
Denis Vlasenko
0a83fc3984 hush: avoid duplicating HUSH_VERSION 2007-05-25 11:12:32 +00:00
Denis Vlasenko
201c72a8d6 hush: micro-optimization in new variable code 2007-05-25 10:00:36 +00:00
Denis Vlasenko
28c0f0f4fe hush: we can't do without variable->value member, saving 25 bytes of code 
and some runtime memory. Rename few variables.
 2007-05-25 02:46:01 +00:00
Denis Vlasenko
d76c049cc4 hush: rework variable storage and environment handling. 
More that -100 bytes of code + memory leak plugged.
Added a testcase for it.
 2007-05-25 02:16:25 +00:00
Denis Vlasenko
163a855731 hush: update README with yet another failure case 2007-05-24 13:52:46 +00:00
Denis Vlasenko
5a1437d835 hush: fix segfaulting syntax error in interactive hush 2007-05-24 13:22:47 +00:00
Denis Vlasenko
cd7f4d27a2 hush: improve 2 testsuite tests 2007-05-24 13:22:01 +00:00
Denis Vlasenko
2b6bbad4db hush: add 2 tests for correct syntax error reporting 2007-05-24 12:26:39 +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
90e485ce79 hush: make syntax error messages a bit more useful 2007-05-23 15:22:50 +00:00
Denis Vlasenko
1744cb1861 hush: prepare testsuite for new, fixed error message format 2007-05-23 15:16:41 +00:00
Denis Vlasenko
170435c575 hush: fix job control with eval /bin/external_prog 
hush: fix parsing of unterminated "str with no EOL
hush: improved make_string() (smaller, faster, needs less RAM)
hush: renamed several functions
 2007-05-23 13:01:10 +00:00
Denis Vlasenko
1a7358612f hush: fix a bit different instance of "No EOL" bug, 
add testsuite for that. Expand another testsuite.
 2007-05-23 00:32:25 +00:00
Denis Vlasenko
94dace3016 fix execute bit on hush-misc/shift.tests 2007-05-23 00:26:32 +00:00
Denis Vlasenko
0681033918 hush: add 3 CONFIG_xxx, allowing for smaller and less capable hush. 
Minimal hush is ~9k now (lash is ~7k).
 2007-05-21 23:30:54 +00:00
Denis Vlasenko
8805eeb44a shells: update README and testsuite. environment memory leak 
needs to be fixed - and documented!
 2007-05-21 10:19:48 +00:00
Denis Vlasenko
219e88d050 hush: using smallints where we can. save ~20 bytes in code and 
some data storage at runtime.
 2007-05-21 10:18:23 +00:00