Age | Commit message (Collapse) | Author |
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EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
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(add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes
text data bss dec hex filename
773469 1058 11092 785619 bfcd3 busybox_old
772644 1058 11092 784794 bf99a busybox_unstripped
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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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function old new delta
fiddle_sum 8 - -8
diffreg 2717 2690 -27
prepare 334 284 -50
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(add/remove: 0/1 grow/shrink: 0/2 up/down: 0/-85) Total: -85 bytes
s/ATTRIBUTE_ALWAYS_INLINE/ALWAYS_INLINE/g
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by minimizing data offsets
function old new delta
parse_expr 752 782 +30
syntax_error 23 26 +3
nvfree 151 154 +3
nvalloc 172 175 +3
fsrealloc 111 114 +3
chain_node 99 102 +3
chain_loop 121 124 +3
chain_group 628 631 +3
awk_main 1002 1005 +3
awk_exit 99 102 +3
parse_program 308 310 +2
split_f0 172 170 -2
awk_split 510 507 -3
getvar_s 108 102 -6
awk_sub 643 637 -6
awk_getline 706 700 -6
next_token 943 927 -16
handle_special 470 446 -24
next_input_file 252 213 -39
evaluate 6703 6633 -70
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(add/remove: 0/0 grow/shrink: 11/9 up/down: 59/-172) Total: -113 bytes
# size */*/awk.o
text data bss dec hex filename
18247 0 0 18247 4747 busybox.t0/editors/awk.o
18134 0 0 18134 46d6 busybox.t1/editors/awk.o
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function old new delta
evaluate 6448 6728 +280
awk_getline 676 705 +29
parse_expr 726 752 +26
next_token 917 943 +26
next_input_file 237 252 +15
awk_split 498 510 +12
awk_sub 632 643 +11
split_f0 160 170 +10
getvar_s 98 108 +10
...
chain_loop 128 121 -7
nvalloc 179 171 -8
chain_node 107 99 -8
mainseq 12 - -12
endseq 12 - -12
chain_group 640 628 -12
beginseq 12 - -12
awk_exit 112 100 -12
fsrealloc 127 110 -17
static.v 20 - -20
static.rsm 24 - -24
ttt 28 - -28
parse_program 339 311 -28
static.sreg 32 - -32
intvar 76 - -76
static.tspl 84 - -84
rsplitter 84 - -84
fsplitter 84 - -84
------------------------------------------------------------------------------
(add/remove: 0/39 grow/shrink: 16/11 up/down: 439/-685) Total: -246 bytes
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*: s/include "busybox.h"/include "libbb.h"
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This is how it goes. I break stuff by doing useless 'cleanups',
people fix the fallout. :(. Thanks rockeychu!
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move 'extern environ' up to the location of #includes
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awk: some 'lineno' vars were shorts, made them ints (code got smaller)
awk: rename global t to global ttt. still an awful name, but at least
you can grep for it now.
function old new delta
ttt - 28 +28
mysleep 104 120 +16
readit 408 418 +10
lineno 2 4 +2
parse_program 338 339 +1
evaluate 6446 6445 -1
syntax_error 25 23 -2
next_token 917 915 -2
new_node 26 24 -2
tv 16 8 -8
skip_spaces 68 53 -15
t 28 - -28
rfds 128 - -128
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(add/remove: 1/2 grow/shrink: 4/6 up/down: 57/-186) Total: -129 bytes
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Put big scary warnings in relevant places.
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function old new delta
tar_main 705 695 -10
sort_main 928 918 -10
decode_format_string 886 876 -10
run_parts_main 197 185 -12
ps_main 513 500 -13
wget_main 2764 2750 -14
awk_main 1014 1000 -14
od_main 2886 2866 -20
llist_rev 25 - -25
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(add/remove: 0/1 grow/shrink: 0/8 up/down: 0/-128) Total: -128 bytes
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no preceding prototype
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can act quite mysteriously
date: add if(ENABLE_LOCALE_SUPPORT)
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(still has quite a lot of statics etc...).
getopt32-ification.
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last xcalloc replaced by xzalloc
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It is impossible to formulate sane ABI based on
size of ulong because it can be 32-bit or 64-bit.
Basically it means that you cannot portably use
more that 32 option chars in one call anyway...
Make it explicit.
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automatically by function itself.
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(the e2fsprogs directory is too twisty and evil to easily fix, but I plan
to rewrite it anyway so I'll just bump that up in priority a bit).
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things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes... General cleanup pass. What I've
been doing for the last couple days.
And it conflicts! I've removed httpd.c from this checkin due to somebody else
touching that file. It builds for me. I have to catch a bus. (Now you know
why I'm looking forward to Mercurial.)
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memset, collate variable declarations...
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Thanks to Rich Felker for pointing this out.
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as the old optimization did (actually does slightly better under gcc 4.0), and
simplifies the code.
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the busybox binary) into enums (which don't).
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