Age | Commit message (Collapse) | Author |
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scanning. It does not catch volume managers and such.
Adding even more cruft is bad, so I decided to simply
scan /dev/* for any block devices. See how much better
it finds devices now:
# ./busybox_old blkid
/dev/sda1: LABEL="/boot" UUID="7931e231-dcb4-4b6d-9301-f7354ae24061"
/dev/dm-0: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"
/dev/dm-1: UUID="edc2a920-ef83-437e-ba64-d3b6dc851267"
/dev/sdb1: UUID="6F84-ED0F"
# ./busybox blkid
/dev/sdb1: UUID="6F84-ED0F"
/dev/root: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"
/dev/dm-1: UUID="edc2a920-ef83-437e-ba64-d3b6dc851267"
/dev/dm-0: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"
/dev/sda1: LABEL="/boot" UUID="7931e231-dcb4-4b6d-9301-f7354ae24061"
/dev/mapper/VolGroup00-LogVol01: UUID="edc2a920-ef83-437e-ba64-d3b6dc851267"
/dev/mapper/VolGroup00-LogVol00: LABEL="Fedora-9-Live-x8" UUID="bb491e1e-1145-4f5b-b0ab-cbd2baf4f15a"
function old new delta
static.drive_name_string 12 - -12
append_mount_options 205 190 -15
volume_id_open_node 37 18 -19
uuidcache_check_device 485 257 -228
uuidcache_init 637 36 -601
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/4 up/down: 0/-875) Total: -875 bytes
text data bss dec hex filename
792218 592 6648 799458 c32e2 busybox_old
791260 592 6648 798500 c2f24 busybox_unstripped
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(no code changes)
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- a lot faster (linear algorithmic complexity, smaller memory foot print)
- a lot smaller (the old code was overly complicated)
- loading of aliases is now module-init-tools compliant
- blacklisting is done correctly (-b option added)
- module argument quoting done right
- depmod now correctly generates modules.symbols and modules.alias
add/remove: 16/21 grow/shrink: 4/6 up/down: 6930/-9316 Total: -2386 bytes
text data bss dec hex filename
806039 592 6680 813311 c68ff busybox_old
803498 592 6676 810766 c5f0e busybox_unstripped
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*: use unified trivial signal handler
function old new delta
record_signo - 10 +10
process_stdin 433 443 +10
bbunpack 383 391 +8
wc_main 598 605 +7
conescape 293 296 +3
nmeter_main 670 672 +2
fallbackSort 1717 1719 +2
bb_got_signal - 1 +1
microcom_main 713 712 -1
signalled 2 - -2
pack_gzip 1661 1659 -2
evalvar 1376 1374 -2
compare_keys 737 735 -2
parse_command 1460 1456 -4
expand 1748 1744 -4
s_term 37 29 -8
s_hangup 8 - -8
fgotsig 10 - -10
find_pair 187 169 -18
signal_handler 190 170 -20
runsvdir_main 1701 1583 -118
------------------------------------------------------------------------------
(add/remove: 2/3 grow/shrink: 6/10 up/down: 43/-199) Total: -156 bytes
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by Bernhard Reutner-Fischer
function old new delta
df_main 664 795 +131
packed_usage 24812 24862 +50
make_human_readable_str 213 262 +49
static.ignored_mounts - 8 +8
static.unit_chars - 7 +7
static.zero_and_units 6 - -6
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/0 up/down: 245/-6) Total: 239 bytes
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function old new delta
top_main 1100 1095 -5
getopt32 1398 1361 -37
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-42) Total: -42 bytes
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function old new delta
xgetpty 91 81 -10
ptsname 33 - -33
text data bss dec hex filename
793828 592 6692 801112 c3958 busybox_old
793796 592 6660 801048 c3918 busybox_unstripped
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(by Doug Graham <dgraham AT nortel.com>)
function old new delta
bb_make_directory 291 280 -11
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function old new delta
bb_get_chunk_with_continuation - 176 +176
find_pair 169 187 +18
...
process_stdin 443 433 -10
config_read 549 456 -93
bb_get_chunk_from_file 139 7 -132
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/7 up/down: 215/-254) Total: -39 bytes
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This fixes problems with NULs in files being scanned, but
costs +800 bytes. The same can be done to sed (TODO).
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get_console_fd_or_die().
function old new delta
get_console_fd_or_die - 163 +163
loadkmap_main 211 201 -10
loadfont_main 440 430 -10
dumpkmap_main 218 208 -10
kbd_mode_main 158 146 -12
setkeycodes_main 156 143 -13
get_console_fd 163 - -163
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/5 up/down: 163/-218) Total: -55 bytes
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function old new delta
unpack_Z_stream - 1229 +1229
open_zipped - 176 +176
unpack_bz2_stream_prime - 60 +60
tar_main 642 677 +35
find_main 406 418 +12
sv_main 1222 1233 +11
decode_format_string 829 837 +8
cmp_main 641 649 +8
popstring 134 140 +6
filter_accept_list_reassign 120 125 +5
parse_and_put_prompt 800 804 +4
passwd_main 1053 1049 -4
make_new_name_gunzip 119 114 -5
rpm_main 1688 1670 -18
prepare 302 283 -19
xmalloc_open_zipped_read_close 135 61 -74
uncompress 1229 - -1229
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 8/5 up/down: 1554/-1349) Total: 205 bytes
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libbb: remove reads()
function old new delta
include_conf_file_act 961 980 +19
localcmd 282 284 +2
already_loaded 155 151 -4
in_cksum 58 53 -5
modprobe_main 1630 1624 -6
reads 129 - -129
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/3 up/down: 21/-144) Total: -123 bytes
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function old new delta
xrealloc_vector_helper 51 76 +25
man_main 712 705 -7
act 250 234 -16
create_list 91 70 -21
getopt_main 695 664 -31
load_dep_bb 281 248 -33
fileAction 744 709 -35
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/6 up/down: 25/-143) Total: -118 bytes
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Without FEATURE_NETSTAT_PRG:
function old new delta
recursive_action 416 425 +9
tcp_do_one 420 428 +8
udp_do_one 492 499 +7
raw_do_one 472 479 +7
expand 1697 1701 +4
netstat_main 489 492 +3
unix_do_one 486 488 +2
flags 1 - -1
qgravechar 109 106 -3
net_conn_line 4 - -4
bbunpack 391 383 -8
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 7/2 up/down: 40/-16) Total: 24 bytes
With FEATURE_NETSTAT_PRG:
file_act - 213 +213
dir_act - 192 +192
netstat_main 489 601 +112
prg_cache_get - 50 +50
tcp_do_one 420 462 +42
udp_do_one 492 533 +41
raw_do_one 472 513 +41
unix_do_one 486 519 +33
recursive_action 416 425 +9
expand 1697 1701 +4
flags 1 - -1
qgravechar 109 106 -3
net_conn_line 4 - -4
bbunpack 391 383 -8
packed_usage 24586 24572 -14
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 7/3 up/down: 737/-30) Total: 707 bytes
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a bug where it underflows the string
a bug where it never frees parser_t struct
make read_config() return 0 if parser is NULL,
make config_close() accept and ignore NULL parser -
eliminates many if() blocks
reverse the sense of parser bit flags - negative flags
are harder to grok.
hexdump: revert the change to use config parser, it is BIGGER
and also requires additional quirks in parser
*: explicitly use PARSER_NORMAL instead of 0
function old new delta
login_main 1575 1596 +21
config_close 18 29 +11
bbunpack 383 391 +8
qgravechar 106 109 +3
rtnl_tab_initialize 121 117 -4
expand 1697 1693 -4
man_main 717 712 -5
nameif_main 674 668 -6
hexdump_main 597 591 -6
read_config 217 209 -8
dnsd_main 1478 1470 -8
sysctl_main 203 189 -14
config_open2 44 25 -19
make_device 1177 1141 -36
config_read 597 549 -48
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/11 up/down: 43/-158) Total: -115 bytes
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function old new delta
config_read 540 597 +57
config_open2 41 44 +3
rtnl_rtprot_initialize 70 66 -4
rtnl_rttable_initialize 78 73 -5
rtnl_rtscope_initialize 88 83 -5
rtnl_rtrealm_initialize 48 43 -5
rtnl_rtdsfield_initialize 48 43 -5
process_module 566 560 -6
bbunpack 391 383 -8
rtnl_tab_initialize 279 121 -158
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/8 up/down: 60/-196) Total: -136 bytes
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- s/\. /. /g;# (me)
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(by Valdimir)
function old new delta
config_open2 - 41 +41
config_read 507 542 +35
find_pair 169 187 +18
fopen_for_write - 14 +14
fopen_for_read - 14 +14
find_main 406 418 +12
xfopen_for_write - 10 +10
xfopen_for_read - 10 +10
popstring 134 140 +6
parse_inittab 396 401 +5
next_token 923 928 +5
pack_gzip 1659 1661 +2
bb__parsespent 117 119 +2
fallbackSort 1719 1717 -2
evalvar 1376 1374 -2
qrealloc 36 33 -3
...
...
...
...
singlemount 4579 4569 -10
process_stdin 443 433 -10
patch_main 1111 1101 -10
ifupdown_main 2175 2165 -10
file_action_grep 90 80 -10
uuidcache_init 649 637 -12
hush_main 797 785 -12
read_config 230 217 -13
dpkg_main 3835 3820 -15
read_line_input 3134 3110 -24
sysctl_main 232 203 -29
config_open 40 10 -30
WARN_BAD_LINE 44 - -44
login_main 1714 1575 -139
------------------------------------------------------------------------------
(add/remove: 5/1 grow/shrink: 8/74 up/down: 174/-737) Total: -563 bytes
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This needs further love, alot of love.. Tito?
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sysctl: use config_read()
function old new delta
sysctl_main 121 232 +111
config_read 478 502 +24
parse_main 239 241 +2
sysctl_preload_file_and_exit 234 - -234
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 3/0 up/down: 137/-234) Total: -97 bytes
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function old new delta
config_read 385 460 +75
runsvdir_main 1701 1716 +15
readit 331 338 +7
passwd_main 1049 1053 +4
parse_command 1504 1507 +3
decode_format_string 822 824 +2
bb__parsespent 117 119 +2
udhcp_get_option 221 222 +1
changepath 196 194 -2
parse_inittab 400 396 -4
nameif_main 683 679 -4
make_device 1176 1172 -4
config_open 48 40 -8
expand_main 698 689 -9
readcmd 1012 1002 -10
config_free_data 37 21 -16
SynchronizeFile 683 643 -40
sleep_main 474 362 -112
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/10 up/down: 109/-209) Total: -100 bytes
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remove bogus workaround in main(). rename atrocious variables/functions.
much expand testsuite.
libbb: fix --help to not affect "test --help"
function old new delta
run_applet_no_and_exit 421 440 +19
nexpr 817 825 +8
static.no_op - 6 +6
test_main 397 257 -140
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 2/1 up/down: 104/-211) Total: -107 bytes
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function old new delta
bb_strtol 82 85 +3
handle_errors 75 66 -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 3/-9) Total: -6 bytes
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processes started as scripts_with_name_longer_than_15_bytes.sh
closes bug 4054 (and is generally neat)
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parse_config: cosmetics
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- convert init's inittab parsing to the new config parser:
function old new delta
config_read 393 386 -7
static.actions 72 64 -8
.rodata 121772 121764 -8
parse_inittab 554 393 -161
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-184) Total: -184 bytes
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(by fixing and shrink config parser)
function old new delta
config_free_data - 37 +37
config_open 43 48 +5
pack_gzip 1658 1660 +2
nameif_main 527 525 -2
SynchronizeFile 629 623 -6
make_device 1184 1176 -8
config_close 31 18 -13
config_read 431 393 -38
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/5 up/down: 44/-67) Total: -23 bytes
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