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21 Commits

Author SHA1 Message Date
Denis Vlasenko
9ac3dc764a unlzma: speedup, by Pascal Bellard (pascal.bellard AT ads-lu.com) 
LZMA_FAST off: 10% faster and:
function                                             old     new   delta
rc_is_bit_1                                            -      92     +92
rc_do_normalize                                       45      81     +36
rc_update_bit_1                                       25       -     -25
rc_update_bit_0                                       30       -     -30
rc_is_bit_0_helper                                    38       -     -38
rc_get_bit                                            60      17     -43
rc_read                                               48       -     -48
unpack_lzma_stream                                  1768    1517    -251
------------------------------------------------------------------------------
(add/remove: 1/4 grow/shrink: 1/2 up/down: 128/-435)         Total: -307 bytes

LZMA_FAST on: 14% faster and:
unpack_lzma_stream                                  2301    2737    +436
rc_get_bit                                           106       -    -106
 2009-04-25 12:19:35 +00:00
Denis Vlasenko
5e34ff29bc *: mass renaming of USE_XXXX to IF_XXXX 
and SKIP_XXXX to IF_NOT_XXXX - the second one was especially
badly named. It was not skipping anything!
 2009-04-21 11:09:40 +00:00
Denis Vlasenko
2bbdda09df unlzma: fix memory leak (Pascal Bellard) 2008-06-27 15:48:45 +00:00
Denis Vlasenko
defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on 
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
 2008-06-27 02:52:20 +00:00
Denis Vlasenko
6b06cb80be more of -Wall fixes from Cristian Ionescu-Idbohrn. 
Some are fixing real bugs.

function                                             old     new   delta
syslogd_main                                         938     958     +20
get_signum                                           136     143      +7
obj_load                                             777     782      +5
recv_from_to                                         210     214      +4
get_next_block                                      1795    1799      +4
display_topmem_process_list                         1117    1121      +4
logread_main                                         484     487      +3
buffer_fill_and_print                                 73      76      +3
kill_main                                            687     689      +2
ll_remember_index                                    240     241      +1
do_stats                                             452     453      +1
if_readconf                                          166     165      -1
display_process_list                                1192    1191      -1
run_applet_and_exit                                  507     505      -2
print_signames                                        33      31      -2
parse_one_line                                      1092    1090      -2
find_out_spec                                         57      55      -2
add_ksymoops_symbols                                 421     419      -2
ash_main                                            1407    1402      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/8 up/down: 54/-17)            Total: 37 bytes
 2008-05-15 21:30:45 +00:00
Denis Vlasenko
c0183e6e0d unlzma: shrink by Pascal Bellard <pascal.bellard AT ads-lu.com> 2008-03-18 03:13:25 +00:00
Denis Vlasenko
444639cc21 unlzma: save a few more bytes, and maybe even a bit faster now 2008-03-02 18:56:23 +00:00
Denis Vlasenko
c3fff877e1 unlzma: if !LZMA_FAST, save ~200 more bytes (Pascal Bellard <pascal.bellard AT ads-lu.com>) 2008-03-02 18:55:49 +00:00
Denis Vlasenko
e324184c05 s/#ifdef CONFIG_/#if ENABLE_/g 2007-08-13 10:36:25 +00:00
Denis Vlasenko
3ad5d0cbbe diff: shrink code (-85 bytes): 
function                                             old     new   delta
fiddle_sum                                             8       -      -8
diffreg                                             2717    2690     -27
prepare                                              334     284     -50
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/2 up/down: 0/-85)             Total: -85 bytes

s/ATTRIBUTE_ALWAYS_INLINE/ALWAYS_INLINE/g
 2007-06-12 20:54:54 +00:00
Denis Vlasenko
c14d39e83a rmp: add optional support for bz2 data. +50 bytes of code 2007-06-08 13:05:39 +00:00
Denis Vlasenko
3376298b59 Stop tracking buffer size - it is a constant. 
Stop ignoring write errors.
Fix bugs in this line:
rc->buffer_size = read(rc->fd, RC_BUFFER, rc->buffer_size);
(a) should use safe_read()
(b) just ONE short read (e.g. 4 bytes) will make ALL future reads short!
 2007-01-05 14:04:47 +00:00
Denis Vlasenko
98b8e9487d simplify access to buffer, making code a bit smaller 2007-01-05 13:59:05 +00:00
Denis Vlasenko
97a8dd3857 g[un]zip: add support for -v (verbose). 
Add CONFIG_DESKTOP, almost all bloat from this change
is hidden under that.
 2006-10-01 15:55:11 +00:00
"Robert P. J. Day"
63fc1a9e08 Standardize on the vi editing directives being on the first line. 2006-07-02 19:47:05 +00:00
Rob Landley
b13fee4cbb Since rangecoder is just a bunch of C functions, move it into the one user 
(decompress_unlzma.c).  Also a slight #include cleanup, and I've been meaning
to put #include <unistd.h> into libbb.h since it's so darn common...
 2006-06-20 22:38:00 +00:00
Rob Landley
bba7f08d27 Add SWAP_LE?? and SWAP_BE?? macros, and make things use them. Converts values 
to/from little endian or big endian, which is a NOP if that's what the current
platform already is.
 2006-05-29 05:51:12 +00:00
Bernhard Reutner-Fischer
cfb53dfd5e - include proper prototypes in libunarchive. 2006-04-02 21:50:01 +00:00
Rob Landley
688ed0d760 Patch from Robert P. Day, moving byte order checks to use platform.h macros. 2006-03-04 22:40:25 +00:00
Tim Riker
c1ef7bdd8d just whitespace 2006-01-25 00:08:53 +00:00
Rob Landley
c1d69906a0 Patch from Aurelien Jacobs to add unlzma. (A new decompression type, 
see www.7-zip.org)
 2006-01-20 18:28:50 +00:00