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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2016-11-08 22:35:05 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2016-11-08 22:35:05 +0100 |
| commit | 87e039d0160be16a9a242f74af2e90cdb9f97e12 (patch) | |
| tree | 6d426cbcb065ba5dc1a7e10717d67a1e74987d88 /networking/hostname.c | |
| parent | 00a06b971531031103c25d650e2078c801afbe39 (diff) | |
| download | busybox-87e039d0160be16a9a242f74af2e90cdb9f97e12.tar.gz | |
hush: make getch/peek functions directly called
Indirect calls are more difficult to predict.
Unfortunately, on x64 direct call is 5 bytes while indirect "call (reg+ofs)"
is 3 bytes:
function old new delta
i_getch - 82 +82
i_peek - 63 +63
parse_stream 2531 2579 +48
parse_dollar 771 797 +26
parse_redirect 296 321 +25
add_till_closing_bracket 408 420 +12
encode_string 256 265 +9
i_peek_and_eat_bkslash_nl 93 99 +6
add_till_backquote 110 114 +4
parse_and_run_stream 139 141 +2
expand_vars_to_list 1143 1144 +1
static_peek 6 - -6
setup_string_in_str 39 18 -21
setup_file_in_str 40 19 -21
static_get 27 - -27
file_peek 52 - -52
file_get 65 - -65
------------------------------------------------------------------------------
(add/remove: 2/4 grow/shrink: 9/2 up/down: 278/-192) Total: 86 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/hostname.c')
0 files changed, 0 insertions, 0 deletions