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libbb: commonalize a bit of little-endian CRC32 table generation code

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function                                             old     new   delta
global_crc32_new_table_le                              -      11     +11
crc32_new_table_le                                     -       9      +9
inflate_unzip_internal                               560     556      -4
flash_eraseall_main                                  823     819      -4
unpack_xz_stream                                    2403    2394      -9
lzop_main                                            121     112      -9
gzip_main                                            187     178      -9
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/5 up/down: 20/-35)            Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2018-02-01 10:56:19 +01:00
parent 06076494da
commit ddacb03e87
8 changed files with 18 additions and 6 deletions
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2
archival/gzip.c
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@@ -2239,7 +2239,7 @@ int gzip_main(int argc UNUSED_PARAM, char **argv)
ALLOC(ush, G1.prev, 1L << BITS);
/* Initialize the CRC32 table */
global_crc32_table = crc32_filltable(NULL, 0);
global_crc32_new_table_le();
argv += optind;
return bbunpack(argv, pack_gzip, append_ext, "gz");