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This was Bernhard Fischer' idea.
text data bss dec hex filename
773549 7781 9740 791070 c121e busybox.t7/0_lib/libbusybox.so.1.11.0.svn_unstripped
769683 7397 9740 786820 c0184 busybox.t9t/0_lib/libbusybox.so.1.11.0.svn_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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function old new delta
find_pair 167 187 +20
static.families - 17 +17
die_must_be_on_off - 11 +11
...
on_off 33 22 -11
do_ipaddr 103 90 -13
do_iptunnel 1001 986 -15
iproute_list_or_flush 1237 1217 -20
static.ip_common_commands 43 22 -21
do_iproute 2217 2193 -24
parse_args 1444 1414 -30
ip_do 47 16 -31
do_iprule 994 963 -31
ip_main 153 113 -40
ipaddr_modify 1357 1305 -52
ipaddr_list_or_flush 2543 2490 -53
ip_parse_common_args 294 159 -135
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 4/24 up/down: 85/-563) Total: -478 bytes
text data bss dec hex filename
775561 966 9236 785763 bfd63 busybox_old
775073 962 9236 785271 bfb77 busybox_unstripped
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text data bss dec hex filename
1705 0 0 1705 6a9 networking/libiproute/utils.o.orig
1676 0 0 1676 68c networking/libiproute/utils.o
766 0 0 766 2fe networking/libiproute/rtm_map.o.orig
670 0 0 670 29e networking/libiproute/rtm_map.o
4942 0 0 4942 134e networking/libiproute/iptunnel.o.orig
4687 0 0 4687 124f networking/libiproute/iptunnel.o
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a bit.
-916 byte
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- mark libiproute's matches() as deprecated. Convert to index_in_(sub)str_array()!
text data bss dec hex filename
314 0 0 314 13a ip.o.orig
200 0 0 200 c8 ip.o
Using a smallint for the key would save another byte.
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Kill a few statics, made other globals smaller:
oneline is smallint, _SL_ is char
function old new delta
print_tunnel 693 731 +38
print_route 1775 1777 +2
print_addrinfo 1495 1497 +2
ipaddr_list_or_flush 2826 2828 +2
oneline 4 1 -3
_SL_ 4 1 -3
ipaddr_modify 1476 1472 -4
parse_address 124 119 -5
ip_parse_common_args 429 423 -6
on_off 53 46 -7
do_del_ioctl 113 106 -7
do_add_ioctl 120 113 -7
do_show 864 856 -8
iprule_list 157 148 -9
do_iptunnel 310 299 -11
do_add 143 126 -17
get_ctl_fd 95 76 -19
set_address 108 84 -24
ip_main 351 323 -28
static.ifr 32 - -32
parse_args 1992 1949 -43
iproute_list_or_flush 1673 1582 -91
do_iplink 1583 1485 -98
filter 280 - -280
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 4/18 up/down: 44/-702) Total: -658 bytes
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move get_hz to the only caller
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last xcalloc replaced by xzalloc
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- use shorter boilerplate while at it.
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