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2022-02-06*: slap on a few ALIGN* where appropriateDenys Vlasenko
The result of looking at "grep -F -B2 '*fill*' busybox_unstripped.map" function old new delta .rodata 108586 108460 -126 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-126) Total: -126 bytes text data bss dec hex filename 970412 4219 1848 976479 ee65f busybox_old 970286 4219 1848 976353 ee5e1 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-02-06libbb/sha256: code shrink in 32-bit x86Denys Vlasenko
function old new delta sha256_process_block64_shaNI 722 713 -9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-02-06libbb/sha256: code shrink in 64-bit x86Denys Vlasenko
function old new delta sha256_process_block64_shaNI 706 701 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-02-03libbb/sha256: code shrink in 64-bit x86Denys Vlasenko
function old new delta sha256_process_block64_shaNI 730 706 -24 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-02-03libbb/sha256: code shrink in 32-bit x86Denys Vlasenko
function old new delta sha256_process_block64_shaNI 747 722 -25 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-02-03libbb/sha256: optional x86 hardware accelerated hashingDenys Vlasenko
64 bit: function old new delta sha256_process_block64_shaNI - 730 +730 .rodata 108314 108586 +272 sha256_begin 31 83 +52 ------------------------------------------------------------------------------ (add/remove: 5/1 grow/shrink: 2/0 up/down: 1055/-1) Total: 1054 bytes 32 bit: function old new delta sha256_process_block64_shaNI - 747 +747 .rodata 104318 104590 +272 sha256_begin 29 84 +55 ------------------------------------------------------------------------------ (add/remove: 5/1 grow/shrink: 2/0 up/down: 1075/-1) Total: 1074 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-25libbb/sha1: in unrolled x86-64 code, pass initial W[] in registers, not on stackDenys Vlasenko
This can be faster on some CPUs. On Skylake, evidently load latency from L1 (or store-to-load forwarding in LSU) is fast enough to completely hide memory reference latencies here. function old new delta sha1_process_block64 3495 3514 +19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-24cut: build fix for FEATURE_CUT_REGEXDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-23libbb/sha1: use SSE2 in unrolled x86-64 code. ~10% fasterDenys Vlasenko
function old new delta .rodata 108241 108305 +64 sha1_process_block64 3502 3495 -7 ------------------------------------------------------------------------------ (add/remove: 5/0 grow/shrink: 1/1 up/down: 64/-7) Total: 57 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-18libbb: shrink lineedit_read_key()Denys Vlasenko
function old new delta lineedit_read_key 237 231 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-17ash,hush: fix handling of SIGINT while waiting for interactive inputDenys Vlasenko
function old new delta lineedit_read_key 160 237 +77 __pgetc 522 589 +67 fgetc_interactive 244 309 +65 safe_read_key - 39 +39 read_key 588 607 +19 record_pending_signo 23 32 +9 signal_handler 75 81 +6 .rodata 104312 104309 -3 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 6/1 up/down: 282/-3) Total: 279 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-13libbb: introduce and use chdir_or_warn()Denys Vlasenko
function old new delta chdir_or_warn - 37 +37 send_cgi_and_exit 720 711 -9 xchdir 27 15 -12 setup_environment 233 217 -16 fork_job 449 433 -16 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/4 up/down: 37/-53) Total: -16 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-13libbb: invert the meaning of SETUP_ENV_NO_CHDIR -> SETUP_ENV_CHDIRDenys Vlasenko
Double negatives are hard to grok. function old new delta login_main 986 988 +2 su_main 474 470 -4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 2/-4) Total: -2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-12sulogin: increase util-linux compatibilityDenys Vlasenko
Change to root's HOME. Set some envvars. Steal ctty if necessary and possible. function old new delta sulogin_main 240 340 +100 setup_environment 225 233 +8 su_main 479 474 -5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 108/-5) Total: 103 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-08libbb/sha1: add a commentDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-08libbb/sha1: simplify cpuid codeDenys Vlasenko
function old new delta sha1_begin 107 106 -1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-08whitespace fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-07libbb/sha1: tweak commentsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-07libbb/sha1: optional i686 hardware accelerates hashingDenys Vlasenko
function old new delta sha1_process_block64_shaNI - 524 +524 sha1_begin 57 114 +57 .rodata 104353 104369 +16 static.shaNI - 1 +1 ------------------------------------------------------------------------------ (add/remove: 4/0 grow/shrink: 2/0 up/down: 598/0) Total: 598 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-07libbb/sha1: optional x86-64 hardware accelerates hashingDenys Vlasenko
function old new delta sha1_process_block64_shaNI - 510 +510 sha1_begin 52 107 +55 .rodata 108285 108301 +16 static.shaNI - 1 +1 ------------------------------------------------------------------------------ (add/remove: 4/0 grow/shrink: 2/0 up/down: 582/0) Total: 582 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-05libbb: change xstrndup, xmemdup to take size_t as size parameterDenys Vlasenko
Also, remove entirely usually-disabled paranoia check (was also using wrong config option to enable itself). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-05libbb: code shrink: introduce and use [_]exit_SUCCESS()Denys Vlasenko
function old new delta exit_SUCCESS - 7 +7 _exit_SUCCESS - 7 +7 run_pipe 1562 1567 +5 pseudo_exec_argv 399 400 +1 finish 86 87 +1 start_stop_daemon_main 1109 1107 -2 shutdown_on_signal 38 36 -2 runsv_main 1662 1660 -2 redirect 1070 1068 -2 read_line 79 77 -2 pause_and_low_level_reboot 54 52 -2 list_i2c_busses_and_exit 483 481 -2 less_exit 12 10 -2 identify 4123 4121 -2 grep_file 1161 1159 -2 getty_main 1519 1517 -2 fsck_minix_main 2681 2679 -2 free_session 132 130 -2 fdisk_main 4739 4737 -2 clean_up_and_exit 53 51 -2 bsd_select 1566 1564 -2 bb_daemonize_or_rexec 198 196 -2 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 3/17 up/down: 21/-34) Total: -13 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-04libbb: fflush_stdout_and_exit(0) still exits with _error_ (not 0!) if fflush ↵Denys Vlasenko
fails function old new delta fflush_stdout_and_exit 36 40 +4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-04libbb: factor out fflush_stdout_and_exit(EXIT_SUCCESS)Denys Vlasenko
function old new delta fflush_stdout_and_exit_SUCCESS - 7 +7 xxd_main 890 888 -2 vlock_main 353 351 -2 uuencode_main 318 316 -2 uniq_main 427 425 -2 uname_main 250 248 -2 sort_main 853 851 -2 shuf_main 500 498 -2 route_main 238 236 -2 readlink_main 113 111 -2 nice_main 156 154 -2 last_main 957 955 -2 ipcs_main 960 958 -2 env_main 209 207 -2 chrt_main 464 462 -2 cal_main 921 919 -2 baseNUM_main 650 648 -2 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/16 up/down: 7/-32) Total: -25 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-04libbb/sha1: x86_64 version: reorder prologue/epilogue insnsDenys Vlasenko
Not clear exactly why, but this increases hashing speed on Skylake from 454 MB/s to 464 MB/s. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-03libbb/sha1: x86_64 version: tidying up, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-03typo fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-03libbb/sha1: x86_64 version: generate from a script, optimize a bitDenys Vlasenko
function old new delta sha1_process_block64 3569 3502 -67 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-03libbb/sha1: x86_64 version: move to a separate .S file, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-02libbb/sha1: code shrink in medium-speed versionDenys Vlasenko
function old new delta sha1_process_block64 654 641 -13 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-01libbb/sha1: x86_64 version: bswap in 64-bit chunksDenys Vlasenko
function old new delta sha1_process_block64 3562 3570 +8 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-01libbb/sha1: shrink x86_64 version - use r8..15 for W[8..15]Denys Vlasenko
function old new delta sha1_process_block64 3683 3562 -121 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-01libbb/sha1: assembly versions for x86Denys Vlasenko
32 bits: function old new delta sha1_process_block64 3950 3657 -293 64 bits: sha1_process_block64 4167 3683 -484 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-12-31libbb/sha1: shrink and speed up fully unrolled versionDenys Vlasenko
function old new delta sha1_process_block64 4149 3950 -199 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-12-30libbb/sha1: add config-selectable partially unrolled versionDenys Vlasenko
function old new delta sha1_process_block64 364 732 +368 static.rconsts 16 - -16 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/0 up/down: 368/-16) Total: 352 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-12-30libbb/sha1: add config-selectable fully unrolled version, closes 14391Denys Vlasenko
function old new delta sha1_process_block64 364 4167 +3803 static.rconsts 16 - -16 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/0 up/down: 3803/-16) Total: 3787 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-12-28libbb: cose shrink in sha1Denys Vlasenko
function old new delta sha1_process_block64 356 342 -14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-11-28libbb: code shrink in des encryption, in setup_salt()Denys Vlasenko
function old new delta pw_encrypt 978 971 -7 .rodata 108208 108192 -16 des_crypt 1211 1181 -30 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-53) Total: -53 bytes 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>
2021-10-11shell: 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>
2021-10-11shell: 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>
2021-10-10*: 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>
2021-10-09libbb: 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>
2021-10-07*: 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>
2021-09-28libbb: code shrink in main() and scripted_main()Denys Vlasenko
function old new delta main 68 65 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3) Total: -3 bytes text data bss dec hex filename 1472 560 16 2048 800 busybox_old 1398 552 16 1966 7ae busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-25libbb/lineedit: tweak #if indenting, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-18libbb: code shrink parse_datestr (again)Ron Yorston
Commit 9fe1548bb (date,touch: allow timezone offsets in dates) mentioned the similarity between '@' format dates and those with timezone offsets. It didn't notice that as a result there's common code which can be shared. function old new delta parse_datestr 730 687 -43 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-43) Total: -43 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17libbb/lineedit: do not escape %^=+}]:, escape ~? in tab completionDenys Vlasenko
function old new delta .rodata 104185 104180 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-17libbb: clarify what bb_mode_string() generatesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.1 at 2024-12-26 15:57:56 +0000