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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This merges the in-memory module info structures of modprobe
and depmod. This allows sharing hashing by modulename code
improving depmod runtime with almost factor of 2x.
function old new delta
get_or_add_modentry - 17 +17
do_modprobe 590 601 +11
moddb_get_or_create - 10 +10
load_modules_dep 195 205 +10
moddb_get - 7 +7
add_probe 81 78 -3
modprobe_main 721 714 -7
depmod_main 553 543 -10
config_file_action 434 421 -13
helper_get_module 160 144 -16
parse_module 343 320 -23
order_dep_list 105 82 -23
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(add/remove: 3/0 grow/shrink: 2/7 up/down: 55/-95) Total: -40 bytes
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
is_prefixed_with - 18 +18
complete_username 78 77 -1
man_main 737 735 -2
fsck_device 429 427 -2
unpack_ar_archive 80 76 -4
strip_unsafe_prefix 105 101 -4
singlemount 1054 1050 -4
rtc_adjtime_is_utc 90 86 -4
resolve_mount_spec 88 84 -4
parse_one_line 1029 1025 -4
parse_conf 1460 1456 -4
may_wakeup 83 79 -4
loadkmap_main 219 215 -4
get_irqs_from_stat 103 99 -4
get_header_cpio 913 909 -4
findfs_main 79 75 -4
fbsplash_main 1230 1226 -4
load_crontab 776 771 -5
expand_vars_to_list 1151 1146 -5
date_main 881 876 -5
skip_dev_pfx 30 24 -6
make_device 2199 2193 -6
complete_cmd_dir_file 773 767 -6
run_applet_and_exit 715 708 -7
uudecode_main 321 313 -8
pwdx_main 197 189 -8
execute 568 560 -8
i2cdetect_main 1186 1176 -10
procps_scan 1242 1230 -12
procps_read_smaps 1017 1005 -12
process_module 746 734 -12
patch_main 1903 1891 -12
nfsmount 3572 3560 -12
stack_machine 126 112 -14
process_timer_stats 449 435 -14
match_fstype 111 97 -14
do_ipaddr 1344 1330 -14
open_list_and_close 359 343 -16
get_header_tar 1795 1779 -16
prepend_new_eth_table 340 323 -17
fsck_main 1811 1794 -17
find_iface_state 56 38 -18
dnsd_main 1321 1303 -18
base_device 179 158 -21
find_keyword 104 82 -22
handle_incoming_and_exit 2785 2762 -23
parse_and_put_prompt 774 746 -28
modinfo 347 317 -30
find_action 204 171 -33
update_passwd 1470 1436 -34
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(add/remove: 1/0 grow/shrink: 0/49 up/down: 18/-540) Total: -522 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
filename2modname 67 86 +19
parse_module 374 351 -23
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: Lauri Kasanen <curaga@operamail.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: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
parse_module 384 379 -5
depmod_main 590 559 -31
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(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-36) Total: -36 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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function old new delta
docolon 207 204 -3
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
xfreopen_write - 35 +35
parse_module 346 353 +7
depmod_main 553 546 -7
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(add/remove: 1/0 grow/shrink: 1/1 up/down: 42/-7) Total: 35 bytes
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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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(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
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(add/remove: 5/1 grow/shrink: 8/74 up/down: 174/-737) Total: -563 bytes
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text data bss dec hex filename
808035 611 6868 815514 c719a busybox_old
804472 611 6868 811951 c63af busybox_unstripped
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We would try to be clever and compare the *data instead of the *elt.
Somethink like this might be of more general use:
/* Unlink arbitrary element from the list that contains data */
void llist_unlink_data(llist_t **head, void *data)
{
llist_t *elt;
for (elt = *head; elt; elt = elt->link) {
if (elt->data == data) {
llist_unlink(elt);
return;
}
}
}
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- other tweaks while at it
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No obj-code changes.
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Dronnikov wrong
text data bss dec hex filename
569 0 0 569 239 modutils/depmod.o
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