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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
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(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
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and SKIP_XXXX to IF_NOT_XXXX - the second one was especially
badly named. It was not skipping anything!
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text data bss dec hex filename
808035 611 6868 815514 c719a busybox_old
804472 611 6868 811951 c63af busybox_unstripped
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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
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(add/remove: 0/0 grow/shrink: 11/8 up/down: 54/-17) Total: 37 bytes
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AT ads-lu.com>)
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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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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!
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Add CONFIG_DESKTOP, almost all bloat from this change
is hidden under that.
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(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...
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to/from little endian or big endian, which is a NOP if that's what the current
platform already is.
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see www.7-zip.org)
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