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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2016-10-02 16:54:17 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2016-10-02 16:54:17 +0200 |
| commit | 888527cceec2f58f1eae3acceddee928b5cb647a (patch) | |
| tree | f4ef6c2a33a1391bfe4e9f408b15e0f36e8e21b4 /docs | |
| parent | bc1a00843fce8ce0ed101c4e6eb02ee79e673a00 (diff) | |
| download | busybox-888527cceec2f58f1eae3acceddee928b5cb647a.tar.gz | |
ash: undo "tokname hack"
dash has tokendlist[] array to decide which tokens end lists.
We store it as first byte of each tokname_array[i].
Switch to bit array, name it like dash (tokendlist), drop special
1st byte of tokname_array[i]. This brings us closer to dash, and
shrinks the binary, because many more string aliasing opportunities
are now open:
function old new delta
pstrcmp1 - 16 +16
readtoken1 2852 2858 +6
list 326 327 +1
pstrcmp 16 15 -1
tokname 45 42 -3
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/2 up/down: 23/-4) Total: 19 bytes
text data bss dec hex filename
943556 916 14292 958764 ea12c busybox_old
943463 916 14292 958671 ea0cf busybox_unstripped
^^^^^^^ note this!
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions