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2018-02-05bzip2: work around bad compiler optimizationDenys Vlasenko
gc-6.1.1 x86_64: function old new delta generateMTFValues 380 367 -13 gcc-4.3.1 386: function old new delta inner_loop - 41 +41 generateMTFValues 357 294 -63 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/1 up/down: 41/-63) Total: -22 bytes gcc-6.3.0 386: function old new delta inner_loop - 36 +36 generateMTFValues 363 250 -113 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/1 up/down: 36/-113) Total: -77 bytes The last case, gcc-6.3.0, runs almost 3 times faster after this change. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04ftpd: fix aliasing warning from gcc-6.1.1Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04ftpgetput: add EPSV support (PASV-like thing for IPv6)Denys Vlasenko
Based on a patch by Kev Kitchens. function old new delta xconnect_ftpdata 149 223 +74 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04ftpgetput: preparations for ESPV support, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04ftpd: switch to mallced "globals"Denys Vlasenko
function old new delta cmdio_write_ok 45 49 +4 cmdio_write_error 45 49 +4 handle_dir_common 360 363 +3 handle_cwd 40 43 +3 port_or_pasv_was_seen 37 39 +2 pasv_active 13 15 +2 cmdio_write_raw 34 36 +2 cmdio_write 78 80 +2 get_remote_transfer_fd 94 93 -1 port_pasv_cleanup 50 45 -5 bind_for_passive_mode 124 119 -5 cmdio_get_cmd_and_arg 237 230 -7 timeout_handler 104 93 -11 ftpd_main 2222 2152 -70 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 8/6 up/down: 22/-99) Total: -77 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-04gunzip: fix from gzip-1.3.12 for gzip file with all zero length codesDenys Vlasenko
Corresponding changelog from gzip-1.3.12 reads: """ 2006-12-20 Paul Eggert <eggert@cs.ucla.edu> * inflate.c (huft_build): Fix regression that caused gzip to refuse to uncompress null input (all zero length codes). Problem reported by Yiorgos Adamopoulos. This regression was caused by the security patch installed 2006-11-20, which in turn came from Debian, which in turn apparently came from Thomas Biege of SuSe. """ function old new delta huft_build 1176 1216 +40 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: move runningOrder[] back to stack - 256 bytes is not muchDenys Vlasenko
function old new delta mainSort 1119 1108 -11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: move ->origPtr out of struct EState, make a few members smallerDenys Vlasenko
function old new delta BZ2_compressBlock 223 228 +5 BZ2_blockSort 85 88 +3 generateMTFValues 356 357 +1 handle_compress 355 349 -6 compressStream 538 531 -7 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/2 up/down: 9/-13) Total: -4 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: pass sorting params through EState* pointerDenys Vlasenko
function old new delta mainGtU 499 515 +16 sendMTFValues 2085 2094 +9 mainSort 1116 1119 +3 generateMTFValues 357 356 -1 fallbackSort 1719 1705 -14 mainQSort3 1163 1141 -22 BZ2_blockSort 118 85 -33 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/4 up/down: 28/-70) Total: -42 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03gzip2: small simplification in mainSimpleSort()Denys Vlasenko
function old new delta mainQSort3 1165 1163 -2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: a few more locals converted to generic typesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: eliminate one parameter to mainQSort3()Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: small simplification in mainSort()Denys Vlasenko
function old new delta mainSort 1127 1118 -9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: convert some locals to unsigned'sDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: runningOrder[] values are always 0..255, make it uint8Denys Vlasenko
function old new delta mainSort 1171 1124 -47 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: remove redundant clearing of an alredy unset bitDenys Vlasenko
function old new delta mainSort 1178 1171 -7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: eliminate write-only local numQSortedDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: make locals in mainSort() saner, convert one of them from uint16 to ↵Denys Vlasenko
unsigned function old new delta mainSort 1192 1178 -14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: remove redundant loop termination check in mainSort()Denys Vlasenko
function old new delta mainSort 1202 1192 -10 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: reduce indentation, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: reuse zPend processing codeDenys Vlasenko
function old new delta generateMTFValues 378 357 -21 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: shrink makeMaps_e()Denys Vlasenko
function old new delta generateMTFValues 378 368 -10 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: optimize zPend variable codeDenys Vlasenko
function old new delta generateMTFValues 433 378 -55 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: have two separate "store bit 0" and "store bit 1" functionsDenys Vlasenko
function old new delta sendMTFValues 2051 2085 +34 bsW1_0 - 33 +33 BZ2_compressBlock 225 223 -2 bsW1 52 - -52 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/1 up/down: 67/-54) Total: 13 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: ~1% speedup by special-casing "store 1 bit" functionDenys Vlasenko
function old new delta bsW1 - 52 +52 BZ2_compressBlock 230 225 -5 BZ2_blockSort 125 118 -7 sendMTFValues 2070 2051 -19 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/3 up/down: 52/-31) Total: 21 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: rewrite bit of code which depends on integer overflowDenys Vlasenko
function old new delta sendMTFValues 2093 2070 -23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: delete write-only fave[] arrayDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bgip2: fewer specifically-sized [u]int32_t's locals in sendMTFValuesDenys Vlasenko
Generic ints/unsigneds are usually fine. Yes, really. function old new delta sendMTFValues 2100 2093 -7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: code shrinkDenys Vlasenko
function old new delta sendMTFValues 2111 2100 -11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-03bzip2: code shrinkDenys Vlasenko
function old new delta BZ2_compressBlock 225 230 +5 handle_compress 356 355 -1 bsW16 59 56 -3 bsW 64 61 -3 bsFinishWrite 37 32 -5 prepare_new_block 48 34 -14 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/5 up/down: 5/-26) Total: -21 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-02bzip2: code shrinkDenys Vlasenko
function old new delta bsW16 - 59 +59 sendMTFValues 2116 2111 -5 bsPutU16 36 - -36 bsPutU32 76 31 -45 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/2 up/down: 59/-86) Total: -27 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01cksum: code shrinkDenys Vlasenko
function old new delta cksum_main 281 262 -19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01libbb: commonalize a bit of little-endian CRC32 table generation codeDenys Vlasenko
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>
2018-02-01udhcpd: use ptr_to_globals for its lone global data (g_leases)Denys Vlasenko
function old new delta udhcpd_main 1461 1463 +2 add_lease 320 318 -2 g_leases 4 - -4 write_leases 223 214 -9 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/2 up/down: 2/-15) Total: -13 bytes text data bss dec hex filename 933232 481 6856 940569 e5a19 busybox_old 933223 481 6852 940556 e5a0c busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01cp: implement -TAaro Koskinen
Implement "cp -T". Some Linux kernel Makefiles started using this recently, so allow also building on systems using busybox cp. function old new delta cp_main 360 428 +68 copy_file 1678 1676 -2 packed_usage 32290 32259 -31 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 76/-39) Total: 35 bytes Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01libarchive: move bbunpack constants to bb_archive.hDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01lzop: code shrinkDenys Vlasenko
function old new delta lzo_decompress 526 524 -2 lzo_compress 473 470 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01unlzop: fix --help: it has -U instead of -kDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-01bzip2: code shrink, stop using global data variableDenys Vlasenko
function old new delta compressStream 523 538 +15 level 1 - -1 bzip2_main 110 73 -37 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/1 up/down: 15/-38) Total: -23 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: "compressed_len" is unused, stop wasting code and time calculating itDenys Vlasenko
function old new delta flush_block 595 523 -72 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: remove unnecessary forward declarations, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: flush output buffer after stored blocks only if necessaryDenys Vlasenko
function old new delta flush_block 671 680 +9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: flush output buffer after stored blocks, they are not 32-bit alignedDenys Vlasenko
function old new delta flush_block 665 671 +6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: make debugging of bits_sent less ugly, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: code shrinkDenys Vlasenko
function old new delta flush_block 668 665 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: code shrinkDenys Vlasenko
Use one memset to clear part of G1, and all of G2. function old new delta pack_gzip 838 828 -10 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: code shrinkDenys Vlasenko
function old new delta pack_gzip 861 838 -23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: code shrink and speedupDenys Vlasenko
function old new delta pack_gzip 908 861 -47 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: optionally faster put_32bit()Denys Vlasenko
function old new delta put_32bit 22 55 +33 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-31gzip: speed up send_bits()Denys Vlasenko
Replace one RMW op with store. This speeds up gzip of a png file by ~2%. function old new delta send_bits 62 66 +4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 14:08:34 +0000