Age | Commit message (Collapse) | Author |
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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of signal mask. Reuse same help string in all shells.
function old new delta
builtin_exit 49 47 -2
pseudo_exec_argv 149 145 -4
builtin_help 74 63 -11
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(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-17) Total: -17 bytes
text data bss dec hex filename
825379 476 7616 833471 cb7bf busybox_old
825341 476 7616 833433 cb799 busybox_unstripped
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function old new delta
get_sock_lsa - 72 +72
buffer_fill_and_print 179 196 +17
parse_expr 824 832 +8
read_base64 343 348 +5
nameval 202 206 +4
fbset_main 1694 1698 +4
expand 1849 1853 +4
udhcp_send_kernel_packet 249 252 +3
udhcp_get_option 223 222 -1
chat_main 1246 1245 -1
pack_gzip 1661 1659 -2
doset 299 297 -2
bb__parsespent 119 117 -2
test_main 260 257 -3
qgravechar 109 106 -3
tcpudpsvd_main 1834 1830 -4
sysctl_display_all 589 580 -9
xopen_xwrite_close 44 33 -11
prs 30 18 -12
find_main 418 406 -12
full_write2_str 25 12 -13
adduser_main 667 654 -13
evaltreenr 817 802 -15
evaltree 817 802 -15
tftpd_main 526 493 -33
ftpd_main 2050 1990 -60
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(add/remove: 1/0 grow/shrink: 7/18 up/down: 117/-211) Total: -94 bytes
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(run "$SHELL $file" instead)
msh: fix exit codes when command is not found or can't be execed
(with testcases)
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http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html
The exit status of a command that terminated because it received a signal shall be reported as greater than 128.
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*: trailing whitespace removal
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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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holding file descriptors; short->smalling for flag field
synio 263 264 +1
readc 247 242 -5
forkexec 1339 1307 -32
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(add/remove: 0/0 grow/shrink: 1/2 up/down: 1/-37) Total: -36 bytes
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msh: glob0/glob1/glob2/glob3 are just a sorting routine! remove them.
bb_pstrcmp - 25 +25
qsort_string_vector - 24 +24
expand 2209 2227 +18
getopt32 1359 1370 +11
passwd_main 1072 1074 +2
handle_incoming_and_exit 2737 2735 -2
UNSPEC_print 66 64 -2
forkexec 1343 1339 -4
input_tab 3338 3330 -8
get_dir 185 177 -8
expmeta 481 473 -8
cmdputs 405 397 -8
xstrcmp 12 - -12
find_pair 187 167 -20
match_compare 25 - -25
dir_strcmp 25 - -25
glob2 27 - -27
glob3 34 - -34
glob1 256 - -256
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(add/remove: 2/6 grow/shrink: 3/8 up/down: 80/-439) Total: -359 bytes
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msh: simplify glob0/glob1/glob2/glob3
get_space - 26 +26
glob3 35 34 -1
glob2 28 27 -1
strsave 55 53 -2
globv 4 - -4
func 4 - -4
xstrcmp 25 12 -13
dodot 178 164 -14
rexecve 272 257 -15
space 26 - -26
glob1 292 256 -36
expand 2246 2209 -37
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(add/remove: 1/3 grow/shrink: 0/8 up/down: 26/-153) Total: -127 bytes
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msh: don't use floating point in "times" builtin
+4 bytes difference
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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
------------------------------------------------------------------------------
(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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add_cmd 1189 1190 +1
xconnect_ftpdata 118 117 -1
data_align 86 84 -2
process_files 2101 2096 -5
forkexec 1345 1334 -11
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They should be passed as ordinary parameters.
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builtins in pipes. They make no sense there anyway.
msh: shrink umask builtin.
function old new delta
execute 2508 2509 +1
doset 326 317 -9
forkexec 1370 1345 -25
doumask 165 101 -64
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(add/remove: 0/0 grow/shrink: 1/3 up/down: 1/-98) Total: -97 bytes
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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
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(add/remove: 0/0 grow/shrink: 7/23 up/down: 27/-163) Total: -136 bytes
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msh: code shrink and some renames for better readability
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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: 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
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-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
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(add/remove: 0/0 grow/shrink: 4/1 up/down: 131/-48) Total: 83 bytes
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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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EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
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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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<wharms@bfs.de>)
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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
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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
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(add/remove: 1/2 grow/shrink: 0/4 up/down: 35/-148) Total: -113 bytes
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# 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
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# 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
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(much more of the same remains, alas)
function old new delta
doset 330 332 +2
warn 53 51 -2
onecommand 463 461 -2
ioecho 40 38 -2
forkexec 1412 1410 -2
err 81 79 -2
setdash 59 56 -3
flag 4 - -4
msh_main 1389 1384 -5
eval 388 381 -7
subgetc 759 747 -12
static.local 14 - -14
b_adduint 70 52 -18
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/10 up/down: 2/-73) Total: -71 bytes
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shell/README - a place to record things about busybox shells
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applets: do not even try to read config if run by real root
msh: use named constants (O_RDONLY etc) in open() instead of magic numbers,
other minor code size reduction.
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set/save/restore more shared global variables whan call one applet from another
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