aboutsummaryrefslogtreecommitdiff
path: root/archival/gzip.c
AgeCommit message (Collapse)Author
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>
2018-02-01libarchive: move bbunpack constants to bb_archive.hDenys Vlasenko
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>
2018-01-30gzip: use "unsigned" type for bit fields and bit countsDenys Vlasenko
This does not change any logic, those values should always be positive. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-30gzip: use wider (32-bit, not 16) bi_bufDenys Vlasenko
function old new delta bi_windup 76 74 -2 send_bits 70 62 -8 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-30gzip: code shrinkDenys Vlasenko
function old new delta send_bits 92 70 -22 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-30gzip: code shrinkDenys Vlasenko
function old new delta fill_window_if_needed - 238 +238 deflate 924 907 -17 pack_gzip 809 790 -19 fill_window 216 - -216 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/2 up/down: 238/-252) Total: -14 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-30gzip: code shrink (consolidate zeroing on reinit)Denys Vlasenko
function old new delta deflate - 938 +938 pack_gzip 1903 923 -980 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-26gzip: fix debug code. Closes 10681Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18regularize format of source file headers, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-08getopt32: remove applet_long_optionsDenys Vlasenko
FEATURE_GETOPT_LONG made dependent on LONG_OPTS. The folloving options are removed, now LONG_OPTS enables long options for affected applets: FEATURE_ENV_LONG_OPTIONS FEATURE_EXPAND_LONG_OPTIONS FEATURE_UNEXPAND_LONG_OPTIONS FEATURE_MKDIR_LONG_OPTIONS FEATURE_MV_LONG_OPTIONS FEATURE_RMDIR_LONG_OPTIONS FEATURE_ADDGROUP_LONG_OPTIONS FEATURE_ADDUSER_LONG_OPTIONS FEATURE_HWCLOCK_LONG_OPTIONS FEATURE_NSENTER_LONG_OPTS FEATURE_CHCON_LONG_OPTIONS FEATURE_RUNCON_LONG_OPTIONS They either had a small number of long options, or their long options are essential. Example: upstream addgroup and adduser have ONLY longopts, we should probably go further and get rid of non-standard short options. To this end, make addgroup and adduser "select LONG_OPTS". We had this breakage caused by us even in our own package! #if ENABLE_LONG_OPTS || !ENABLE_ADDGROUP /* We try to use --gid, not -g, because "standard" addgroup * has no short option -g, it has only long --gid. */ argv[1] = (char*)"--gid"; #else /* Breaks if system in fact does NOT use busybox addgroup */ argv[1] = (char*)"-g"; #endif xargs: its lone longopt no longer depends on DESKTOP, only on LONG_OPTS. hwclock TODO: get rid of incompatible -t, -l aliases to --systz, --localtime Shorten help texts by omitting long option when short opt alternative exists. Reduction of size comes from the fact that store of an immediate (an address of longopts) to a fixed address (global variable) is a longer insn than pushing that immediate or passing it in a register. This effect is CPU-agnostic. function old new delta getopt32 1350 22 -1328 vgetopt32 - 1318 +1318 getopt32long - 24 +24 tftpd_main 562 567 +5 scan_recursive 376 380 +4 collect_cpu 545 546 +1 date_main 1096 1095 -1 hostname_main 262 259 -3 uname_main 259 255 -4 setpriv_main 362 358 -4 rmdir_main 191 187 -4 mv_main 562 558 -4 ipcalc_main 548 544 -4 ifenslave_main 641 637 -4 gzip_main 192 188 -4 gunzip_main 77 73 -4 fsfreeze_main 81 77 -4 flock_main 318 314 -4 deluser_main 337 333 -4 cp_main 374 370 -4 chown_main 175 171 -4 applet_long_options 4 - -4 xargs_main 894 889 -5 wget_main 2540 2535 -5 udhcpc_main 2767 2762 -5 touch_main 436 431 -5 tar_main 1014 1009 -5 start_stop_daemon_main 1033 1028 -5 sed_main 682 677 -5 script_main 1082 1077 -5 run_parts_main 330 325 -5 rtcwake_main 459 454 -5 od_main 2169 2164 -5 nl_main 201 196 -5 modprobe_main 773 768 -5 mkdir_main 160 155 -5 ls_main 568 563 -5 install_main 773 768 -5 hwclock_main 411 406 -5 getopt_main 622 617 -5 fstrim_main 256 251 -5 env_main 198 193 -5 dumpleases_main 635 630 -5 dpkg_main 3991 3986 -5 diff_main 1355 1350 -5 cryptpw_main 233 228 -5 cpio_main 593 588 -5 conspy_main 1135 1130 -5 chpasswd_main 313 308 -5 adduser_main 887 882 -5 addgroup_main 416 411 -5 ftpgetput_main 351 345 -6 get_terminal_width_height 242 234 -8 expand_main 690 680 -10 static.expand_longopts 18 - -18 static.unexpand_longopts 27 - -27 mkdir_longopts 28 - -28 env_longopts 30 - -30 static.ifenslave_longopts 34 - -34 mv_longopts 46 - -46 static.rmdir_longopts 48 - -48 packed_usage 31739 31687 -52 ------------------------------------------------------------------------------ (add/remove: 2/8 grow/shrink: 3/49 up/down: 1352/-1840) Total: -488 bytes text data bss dec hex filename 915681 485 6880 923046 e15a6 busybox_old 915428 485 6876 922789 e14a5 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-21config: deindent all help textsDenys Vlasenko
Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-18Update menuconfig items with approximate applet sizesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-06-15archival: add option -k "keep" to gzip/bzip2/lzop, add -U "nokeep" to lzopDenys Vlasenko
function old new delta bbunpack 745 779 +34 lzop_main 93 121 +28 do_lzo_compress 320 328 +8 packed_usage 31685 31653 -32 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 70/-32) Total: 38 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-06-15fix "ifdef ENABLE_foo": should always be "#if ENABLE_foo"Denys Vlasenko
function old new delta pack_gzip 1729 1789 +60 fill_window 220 216 -4 static.gzip_level_config 24 - -24 gzip_main 275 192 -83 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/2 up/down: 60/-111) Total: -51 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-10Big cleanup in config help and descriptionDenys Vlasenko
Redundant help texts (one which only repeats the description) are deleted. Descriptions and help texts are trimmed. Some config options are moved, even across menus. No config option _names_ are changed. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-09Allow 'gzip -d' and 'bzip2 -d' without gunzip or bunzip2Kang-Che Sung
Idea copied from the "ip" applet. Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-15gzip: fix compression level bug. Closes 9131Natanael Copa
fix broken logic to get the gzip_level_config value from options -1 to -9. This fixes an off-by-one bug that caused gzip -9 output bigger files than the other compression levels. It fixes so that compression level 1 to 3 are actually mapped to level 4 as comments say. It also fixes that levels -4 to -9 is mapped to correct level and avoids out-of-bounds access. Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-06-20randomconfig fixes 4Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-27gzip: add support for --no-name long optionAaro Koskinen
Add support for --no-name long option. Just silently ignore it like the short -n option. This allows to use busybox gzip with Lynx browser. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-07-13Removes stray empty line from codeManinder Singh
This patch removes stray empty line from busybox code reported by script find_stray_empty_lines Signed-off-by: Maninder Singh <maninder1.s@samsung.com> Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-04-26gzip: add support for compression levels 4-9Aaro Koskinen
function old new delta gzip_main 192 282 +90 static.gzip_level_config - 24 +24 packed_usage 30439 30459 +20 fill_window 216 220 +4 pack_gzip 1789 1729 -60 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/1 up/down: 138/-60) Total: 78 bytes Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-02-03gzip: trivial code shrink -5 bytesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-02-02gzip: speed up and shrink put_16bit()Denys Vlasenko
function old new delta put_16bit 104 98 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-02-02gzip: do not store timestamp in gzip headerRich Felker
Storing the original file's modification time in the output file is harmful (precludes deterministic results) and unlike official gzip, the busybox version provides no way to suppress this behavior; the -n option is silently ignored. Rather than trying to make -n work, this patch just removes the timestamp-storing functionality. It should be considered deprecated anyway; it's not Y2038-safe and gunzip ignores it by default. Per RFC 1952, 0 is the correct value to store to indicate that there is no timestamp. Signed-off-by: Rich Felker <dalias@libc.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-12-07Rename transformer_aux_data_t -> transformer_state_tDenys Vlasenko
No code changes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-14archival/*: move "config:" snippets into .c filesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-14archival/*: move "applet:" snippets into .c filesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-14archival/*: move "kbuild:" snippets into .c filesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-14whitespace fixes. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-06update seamless uncompression codeDenys Vlasenko
This change makes "tar tf hello_world.txz" work without adding special-casing for ".txz" extension. It also removes ever-growing magic checking code in rpm2cpio and get_header_tar - we reuse one which lives in setup_unzip_on_fd. function old new delta unpack_gz_stream 7 566 +559 check_signature16 - 70 +70 setup_unzip_on_fd 99 142 +43 handle_SIGCHLD - 41 +41 unpack_bz2_stream 342 376 +34 unzip_main 2352 2385 +33 bbunpack 503 533 +30 open_transformer 74 102 +28 unpack_Z_stream 1278 1304 +26 unpack_gunzip 101 123 +22 init_transformer_aux_data - 18 +18 unpack_xz_stream 2388 2402 +14 open_zipped 131 141 +10 rpm_main 1358 1363 +5 get_header_tar_lzma 52 57 +5 get_header_tar_bz2 52 57 +5 unpack_lzma_stream 2698 2702 +4 hash_find 234 233 -1 get_header_tar 1759 1733 -26 get_header_tar_gz 92 57 -35 unpack_uncompress 51 12 -39 rpm2cpio_main 201 147 -54 unpack_unxz 67 12 -55 unpack_bz2_stream_prime 55 - -55 get_header_tar_Z 86 - -86 unpack_gz_stream_with_info 539 - -539 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 14/6 up/down: 947/-890) Total: 57 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-22rename archive.h to bb_archive.h. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-10regularize options which control size/speed tradeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-09gzip: new GZIP_BIG_MEM optionIan Wienand
Enabling the config option on my standard linux box and zipping a random 250mb file: small mem: 21.85user 0.44system 0:22.35elapsed big mem: 13.45user 0.46system 0:13.94elapsed Signed-off-by: Ian Wienand <ianw@vmware.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-06-05*: remove "Options:" string from help textsDenys Vlasenko
function old new delta packed_usage 28706 28623 -83 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-04-16Fix double words in comments. No code changesMarek Polacek
Signed-off-by: Marek Polacek <mpolacek@redhat.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-27move help text from include/usage.src.h to archival/*.cPere Orga
Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-11-03rename archival/libunarchive -> archival/libarchive; move bz/ into itDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-28*: whitespace fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-27libbb: introduce and use common crc32 routineDenys Vlasenko
function old new delta crc32_block_endian1 - 37 +37 crc32_block_endian0 - 34 +34 global_crc32_table - 8 +8 file_read 82 87 +5 gzip_main 211 214 +3 xz_crc32 40 35 -5 crc32_table 8 - -8 calculate_gunzip_crc 54 34 -20 lzo_crc32 54 25 -29 cksum_main 298 211 -87 ------------------------------------------------------------------------------ (add/remove: 3/1 grow/shrink: 2/4 up/down: 87/-149) Total: -62 bytes Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 16:59:56 +0000