Age | Commit message (Collapse) | Author |
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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
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(add/remove: 0/0 grow/shrink: 2/11 up/down: 11/-187) Total: -176 bytes
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just build relevant source and use xxx_main functions.
build system: add a special case when we have exactly one applet enabled
(makes "true", "false", "basename" REALLY tiny).
getopt32: do not use stdio.
function old new delta
getopt32 1385 1412 +27
make_device 1187 1200 +13
basename_main 120 127 +7
tcpudpsvd_main 1922 1926 +4
testcmd 5 - -5
echocmd 5 - -5
fuser_main 1243 1231 -12
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(add/remove: 0/2 grow/shrink: 4/1 up/down: 51/-22) Total: 29 bytes
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(by James Simmons <jsimmons AT infradead.org>)
TODO: write testsuite!
BASH_COMPAT off:
scanleft 101 262 +161
subevalvar 346 335 -11
BASH_COMPAT on:
subevalvar 346 1397 +1051
scanleft 101 262 +161
readtoken1 2739 2807 +68
cmdputs 397 399 +2
static.vstype 64 48 -16
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(add/remove: 0/0 grow/shrink: 4/1 up/down: 1282/-16) Total: 1266 bytes
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function old new delta
bbunpack 358 366 +8
passwd_main 1070 1072 +2
handle_incoming_and_exit 2651 2653 +2
getpty 88 86 -2
script_main 975 972 -3
inetd_main 2036 2033 -3
dname_enc 377 373 -4
make_new_session 474 462 -12
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(add/remove: 0/0 grow/shrink: 3/5 up/down: 12/-24) Total: -12 bytes
text data bss dec hex filename
797429 658 7428 805515 c4a8b busybox_old
797417 658 7428 805503 c4a7f busybox_unstripped
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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
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(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
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libbb: rename sig_pause to wait_for_any_sig.
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signal_SA_RESTART_empty_mask - 65 +65
signal_no_SA_RESTART_empty_mask - 54 +54
dd_main 1325 1369 +44
sigaction_set - 19 +19
dname_enc 373 377 +4
UNSPEC_print 64 66 +2
setsignal 296 294 -2
bb_signals_recursive 95 92 -3
bb_askpass 367 361 -6
inetd_main 1810 1797 -13
rx_main 912 883 -29
sigdelset 32 - -32
__sigdelset 32 - -32
__GI_sigdelset 32 - -32
sighup_handler 84 37 -47
arping_main 1844 1797 -47
fsck_main 1869 1807 -62
run_list 1917 1844 -73
vlock_main 492 409 -83
progressmeter 883 798 -85
handle_incoming_and_exit 2737 2651 -86
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(add/remove: 3/3 grow/shrink: 3/12 up/down: 188/-632) Total: -444 bytes
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Our shells are immune from this nasty O_NONBLOCK now!
function old new delta
nonblock_safe_read - 78 +78
file_get 276 295 +19
generateMTFValues 428 435 +7
read_line_input 1776 1772 -4
preadbuffer 543 450 -93
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(add/remove: 1/0 grow/shrink: 2/2 up/down: 104/-97) Total: 7 bytes
text data bss dec hex filename
615190 715 23924 639829 9c355 busybox_old
615168 715 23924 639807 9c33f busybox_unstripped
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function old new delta
stzalloc - 29 +29
ckzalloc - 29 +29
recordregion 108 102 -6
cmdlookup 158 152 -6
pipeline 188 181 -7
parseheredoc 135 128 -7
makename 42 35 -7
list 355 348 -7
setvareq 221 212 -9
aliascmd 324 311 -13
pushfile 83 69 -14
readtoken1 2872 2849 -23
parse_command 1430 1391 -39
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(add/remove: 2/0 grow/shrink: 0/11 up/down: 58/-138) Total: -80 bytes
text data bss dec hex filename
577227 706 23740 601673 92e49 busybox_old
577147 706 23740 601593 92df9 busybox_unstripped
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bar; fi' work
(fixes bug 1142)
function old new delta
options 551 565 +14
ash_main 1397 1411 +14
setcmd 77 90 +13
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(add/remove: 0/0 grow/shrink: 3/0 up/down: 41/0) Total: 41 bytes
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trap_handler() {
echo trap
}
trap trap_handler USR1
sleep 3600 &
while true; do wait; done
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*: 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
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(add/remove: 2/2 grow/shrink: 2/7 up/down: 72/-103) Total: -31 bytes
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(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
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ash: cosmetic style fixes, no code changes
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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
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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
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(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
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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
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ash: make read handling both more correct and smaller
read_line_input 4037 4101 +64
input_backward 140 139 -1
readcmd 1079 1070 -9
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(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
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*: trailing whitespace removed
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EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
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$ ./.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
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(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
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*: fcntl(fd, F_GETFL) doesn't require third parameter at all.
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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
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