Age | Commit message (Collapse) | Author |
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
trapcmd 236 271 +35
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Michael Abbott <michael@araneidae.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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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>
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function old new delta
copynode 197 196 -1
calcsize 127 126 -1
nodesize 54 27 -27
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(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-29) Total: -29 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
startservice 377 363 -14
setari_u 54 40 -14
ash_main 1375 1361 -14
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(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-42) Total: -42 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
ulimitcmd 489 415 -74
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
evalvar 1371 1373 +2
trapcmd 347 260 -87
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
changepath 194 195 +1
evalvar 1373 1371 -2
forkchild 602 590 -12
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
forkchild - 602 +602
trapcmd 255 347 +92
ash_main 1362 1375 +13
evalvar 1371 1373 +2
popstring 140 134 -6
forkshell 835 248 -587
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(add/remove: 1/0 grow/shrink: 3/2 up/down: 709/-593) Total: 116 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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