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2021-11-27tls: P256: trivial x86-64 fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: change logic so that we don't need double-wide vectors everywhereDenys Vlasenko
Change sp_256to512z_mont_{mul,sqr}_8 to not require/zero upper 256 bits. There is only one place where we actually used that (and that's why there used to be zeroing memset of top half!). Fix up that place. As a bonus, 256x256->512 multiply no longer needs to care for "r overlaps a or b" case. This shrinks sp_point structure as well, not just temporaries. function old new delta sp_256to512z_mont_mul_8 150 - -150 sp_256_mont_mul_8 - 147 +147 sp_256to512z_mont_sqr_8 7 - -7 sp_256_mont_sqr_8 - 7 +7 sp_256_ecc_mulmod_8 494 543 +49 sp_512to256_mont_reduce_8 243 249 +6 sp_256_point_from_bin2x32 73 70 -3 sp_256_proj_point_dbl_8 353 345 -8 sp_256_proj_point_add_8 544 499 -45 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 2/3 up/down: 209/-213) Total: -4 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: do not open-code copying of struct variablesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: fix sp_256_div2_8 - it wouldn't use a[] if low bit is 0Denys Vlasenko
It worked by chance because the only caller passed both parameters as two pointers to the same array. My fault (I made this error when converting from 26-bit code). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: remove redundant zeroing in sp_256_map_8Denys Vlasenko
Previous change made it obvious that we zero out already-zeroed high bits function old new delta sp_256_ecc_mulmod_8 534 494 -40 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: explain which functions use double-wide arrays, no code changesDenys Vlasenko
function old new delta sp_512to256_mont_reduce_8 - 243 +243 sp_256to512z_mont_mul_8 - 150 +150 sp_256to512z_mont_sqr_8 - 7 +7 sp_256_mont_sqr_8 7 - -7 sp_256_mont_mul_8 150 - -150 sp_256_mont_reduce_8 243 - -243 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 0/0 up/down: 400/-400) Total: 0 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: remove constant-time trick in sp_256_proj_point_add_8Denys Vlasenko
function old new delta sp_256_proj_point_add_8 576 544 -32 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: do not open-code copying of struct variablesDenys Vlasenko
function old new delta sp_256_ecc_mulmod_8 536 534 -2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: tweak debug printoutDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-27tls: P256: 64-bit optimizationsDenys Vlasenko
function old new delta sp_256_proj_point_dbl_8 421 428 +7 sp_256_point_from_bin2x32 78 84 +6 sp_256_cmp_8 38 42 +4 sp_256_to_bin_8 28 31 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/0 up/down: 20/0) Total: 20 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-09which: add -a to help textDenys Vlasenko
function old new delta packed_usage 34075 34079 +4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-13cpio: add support for --renumber-inodes like GNU cpioAriadne Conill
The --renumber-inodes option renumbers the inodes starting from 1, so that the sequence of inodes is always stable. This helps with reproducibility. function old new delta cpio_o 961 1045 +84 .rodata 78422 78440 +18 bbconfig_config_bz2 6168 6164 -4 packed_usage 25764 25756 -8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/2 up/down: 102/-12) Total: 90 bytes Signed-off-by: Ariadne Conill <ariadne@dereferenced.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-13cpio: add support for --ignore-devno like GNU cpioAriadne Conill
The --ignore-devno option is used to set device numbers to (0, 0). This can be useful in verifying whether a CPIO archive is reproducible. function old new delta cpio_o 922 961 +39 .rodata 78407 78422 +15 bbconfig_config_bz2 6161 6167 +6 packed_usage 25770 25764 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 60/-6) Total: 54 bytes Signed-off-by: Ariadne Conill <ariadne@dereferenced.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-13shell: tweak --helpDenys Vlasenko
Even though formally it is -s [ARGS], "sh -s" without ARGS is the same as just "sh". And we are already over 80 chars wide for ash --help, so make it shorter. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-13hush: in a comment, document what -i might be doingDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-12ed: align output of read/write commands with POSIX-1.2008Sören Tempel
POSIX.1-2008 mandates the following regarding the write command: If the command is successful, the number of bytes written shall be written to standard output, unless the -s option was specified, in the following format: "%d\n", <number of bytes written> function old new delta readLines 447 409 -38 doCommands 1940 1889 -51 .rodata 104219 104163 -56 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-145) Total: -145 bytes Signed-off-by: Sören Tempel <soeren+git@soeren-tempel.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-12config system: move some options closer to relevalnt tool subdirectoriesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-12shell: use more compact SHELL_ASH / HUSH config defines. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-11shell: do not read user database for every prompt - only for those which need itDenys Vlasenko
function old new delta get_user_strings - 52 +52 get_homedir_or_NULL - 23 +23 parse_and_put_prompt 823 838 +15 null_str 1 - -1 complete_cmd_dir_file 814 812 -2 deinit_S 51 42 -9 read_line_input 3059 3015 -44 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 1/3 up/down: 90/-56) Total: 34 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-11tar: prevent malicious archives with enormous long name sizes OOMing the machineDenys Vlasenko
function old new delta get_header_tar 1707 1752 +45 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-11whitespace fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-11shell: fix script's comm field if ENABLE_FEATURE_PREFER_APPLETS=yDenys Vlasenko
function old new delta re_execed_comm - 46 +46 main 72 86 +14 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/0 up/down: 60/0) Total: 60 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-11tls: code shrink curve25519Denys Vlasenko
function old new delta fe_select 39 - -39 curve25519 849 800 -49 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-88) Total: -88 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-11tls: remove unused tls_symmetric.h (was used by old "big" AES code)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-10chrt: silence analyzer warningBernhard Reutner-Fischer
warning: use of uninitialized value ‘priority’ [CWE-457] [-Wanalyzer-use-of-uninitialized-value] chrt_main 499 496 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3) Total: -3 bytes text data bss dec hex filename 972157 4235 1840 978232 eed38 busybox_old 972154 4235 1840 978229 eed35 busybox_unstripped Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2021-10-10find: code shrink -{m,a,c}{time,min}Denys Vlasenko
function old new delta time_cmp - 181 +181 func_mmin 171 31 -140 func_mtime 180 34 -146 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 181/-286) Total: -105 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-10*: add more beneficial NOINLINEsDenys Vlasenko
function old new delta dec_main - 1729 +1729 -41 bytes fallbackQSort3 - 671 +671 -70 bytes verify_sun - 481 +481 -107 bytes verify 1330 742 -588 fallbackSort 1469 728 -741 unpack_xz_stream 2306 536 -1770 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 0/3 up/down: 2881/-3099) Total: -218 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-10*: add NOINLINEs where code noticeably shrinksDenys Vlasenko
function old new delta display 85 1463 +1378 -73 bytes select_and_cluster - 1088 +1088 -139 bytes parse_reply - 979 +979 -109 bytes zbc_num_sqrt - 632 +632 -191 bytes show_bridge_port - 585 +585 -56 bytes sp_256_proj_point_add_8 - 576 +576 -45 bytes encode_then_append_var_plusminus - 554 +554 -118 bytes read_mode_db - 537 +537 -47 bytes fbset_main 1331 747 -584 sp_256_ecc_mulmod_8 1157 536 -621 brctl_main 2189 1548 -641 expand_one_var 2544 1872 -672 zxc_vm_process 6412 5589 -823 send_queries 1813 725 -1088 recv_and_process_peer_pkt 2245 1018 -1227 bb_dump_dump 1531 80 -1451 ------------------------------------------------------------------------------ (add/remove: 7/0 grow/shrink: 1/8 up/down: 6329/-7107) Total: -778 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-09Make const ptr assign as function call in clangYU Jincheng
- This can act as memory barrier in clang to avoid read before assign of a const ptr Signed-off-by: LoveSy <shana@zju.edu.cn> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-09find: implement -amin, -atime, -cmin, and -ctimeIsmael Luceno
function old new delta func_mtime 130 180 +50 func_mmin 121 171 +50 static.params 235 261 +26 parse_params 1435 1461 +26 packed_usage 34025 34033 +8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/0 up/down: 160/0) Total: 160 bytes Signed-off-by: Ismael Luceno <ismael@iodev.co.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-09hush: speed up ${x//\*/|} tooDenys Vlasenko
function old new delta expand_one_var 2502 2544 +42 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-09ash: speed up ${x//\*/|} too, make it independent of ASH_OPTIMIZE_FOR_SIZEDenys Vlasenko
function old new delta subevalvar 1503 1545 +42 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-09ash.c: speedup ${s:} substring (no quotes)Alin Mr
This trivial patch makes ${s:...} at least as fast as ${s#??..} in simple tests. It's probably faster for longer substrings, but then one wouldn't use ${s#"1024???s"} anyway - one would switch away from sh. function old new delta subevalvar 1457 1503 +46 Signed-off-by: Alin Mr <almr.oss@outlook.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-09libbb: better coreutils compatibility for realpathRon Yorston
Add some tests which coreutils realpath pass but BusyBox realpath fails (bar one). Adjust xmalloc_realpath_coreutils() so the tests pass: - Expand symbolic links before testing whether the last path component exists. - When the link target is a relative path canonicalize it by passing it through xmalloc_realpath_coreutils() as already happens for absolute paths. - Ignore trailing slashes when finding the last path component and correctly handle the case where the only slash is at the start of the path. This requires ignoring superfluous leading slashes. - Undo all changes to the path so error messages from the caller show the original filename. function old new delta xmalloc_realpath_coreutils 214 313 +99 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08xxd: fix -p -r, closes 13881Denys Vlasenko
function old new delta xxd_main 893 890 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08resize: use tcgetattr(TCSAFLUSH) instead of TCSANOW, closes 13811Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08mktemp: add --tmpdir optionAndrej Valek
Make mktemp more compatible with coreutils. - add "--tmpdir" option - add long variants for "d,q,u" options Note: Upstream ca-certificate update script started using this option. function old new delta .rodata 104179 104219 +40 mktemp_main 186 194 +8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 48/0) Total: 48 bytes Signed-off-by: Andrej Valek <andrej.valek@siemens.com> Signed-off-by: Peter Marko <peter.marko@siemens.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08tar: improve comments, add FIXMEs. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08libbb.h: fix logic selecting incorrect BB_STRTOOFF for !LFS configsDenys Vlasenko
BB_STRTOOFF() was equal to bb_strtou(). On x86_64, it's incorrect. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08httpd: if range is not specified, correctly fall back to read/write loopDenys Vlasenko
range_start was staying -1, and comparison meant to detect "is it the first sendfile that failed, or not the first?" was making incorrect decision. The result: nothing is sent. function old new delta send_file_and_exit 865 877 +12 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08help: s/Don't daemonize/Run in foreground/gDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08mdev: tweak --helpDenys Vlasenko
function old new delta packed_usage 33993 34008 +15 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-08mount: "mount -o rw ...." should not fall back to RO mountDenys Vlasenko
The reported case was an attempt to remount,rw a CD-ROM: mount -o remount,rw /mnt/sr0 which "succeeded" by falling back to RO: mount("/dev/sr0", "/mnt/sr0", 0x412862, MS_REMOUNT|MS_SILENT|MS_RELATIME, "nojoliet,check=s,map=n,blocksize"...) = -1 EROFS (Read-only file system) ... mount("/dev/sr0", "/mnt/sr0", 0x412862, MS_RDONLY|MS_REMOUNT|MS_SILENT|MS_RELATIME, "nojoliet,check=s,map=n,blocksize"...) = 0 Clearly, not what was intended! function old new delta parse_mount_options 241 267 +26 mount_main 1198 1211 +13 singlemount 1301 1313 +12 inetd_main 1919 1911 -8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 51/-8) Total: 43 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07ip: added support for setting netns on devicesNicholas Niro
function old new delta set_netns - 130 +130 do_iplink 1252 1315 +63 .rodata 104173 104179 +6 packed_usage 34020 33993 -27 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/1 up/down: 199/-27) Total: 172 bytes Signed-off-by: Nicholas Niro <blowfist@xroutine.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07ps: fix -o pid=PID,args interpreting entire "PID,args" as headerDenys Vlasenko
procps-ng 3.3.15 does not do this. (It could, allowing commas in headers and requiring "ps -opid=PID -oargs" form for this case, but it does not). function old new delta parse_o 167 190 +23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07find: Unify time comparisonsIsmael Luceno
Split the common part into a function, to be reused. The tail call is optimized, meaning now mmin/mtime just prepare arguments and jump into the common code, thus near zero overhead. This reduces code size slightly, e.g. on x86_64: text data bss dec hex filename 4806 0 0 4806 12c6 findutils/find.o.orig 4782 0 0 4782 12ae findutils/find.o Of course, the savings are even greater when implementing atime/ctime variants. Signed-off-by: Ismael Luceno <ismael@iodev.co.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07config: find: Fix mtime/mmin descriptionIsmael Luceno
s/modified time/modification time/ Signed-off-by: Ismael Luceno <ismael@iodev.co.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-07*: generalize "const trick"YU Jincheng
While at it, change all "__asm__" to "asm" Co-authored-by: canyie <31466456+canyie@users.noreply.github.com> Signed-off-by: YU Jincheng <shana@zju.edu.cn> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06tls: whitespace fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-06tls: P256: sp_256_sub_8_p256_mod always subtracts in-place, use thatDenys Vlasenko
i386: function old new delta sp_256_mont_reduce_8 245 243 -2 sp_256_mont_dbl_8 26 24 -2 sp_256_ecc_mulmod_8 1161 1157 -4 sp_256_proj_point_dbl_8 359 353 -6 sp_256_sub_8_p256_mod 71 32 -39 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-53) Total: -53 bytes non-asm code: function old new delta sp_256_sub_8_p256_mod - 12 +12 sp_256_mont_reduce_8 250 243 -7 sp_256_mont_dbl_8 31 24 -7 sp_256_ecc_mulmod_8 1171 1157 -14 sp_256_proj_point_dbl_8 374 353 -21 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/4 up/down: 12/-49) Total: -37 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.1 at 2024-11-19 14:50:08 +0000