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Author SHA1 Message Date
Denys Vlasenko 1c54552842 ash: fix ifs cleanup on error paths 
Patch by Alex Gorinson <algore3698@gmail.com>

function                                             old     new   delta
evalvar                                              477     495     +18
varvalue                                             603     618     +15
subevalvar                                          1557    1572     +15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 48/0)               Total: 48 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-08-02 11:18:11 +02:00
Denys Vlasenko 5479c435fd sort: fix sort -s -u, closes 14871 
function                                             old     new   delta
sort_main                                            851     856      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-07-29 16:40:00 +02:00
Denys Vlasenko 00f2a35b83 sort: fix -k2M (wasn't skipping leading whitespace) 
function                                             old     new   delta
compare_keys                                         848     862     +14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-07-29 16:05:50 +02:00
Denys Vlasenko 9b6eb2a8ef udhcpc6: add missed big-endian conversions 
function                                             old     new   delta
option_to_env                                        686     694      +8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-07-13 16:15:04 +02:00
Denys Vlasenko 7b969bb2ad tls: P256: remove NOP macro sp_256_norm_8() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-07-13 16:11:17 +02:00
Denys Vlasenko 3ad3aa6441 shaNNNsum: accept one-space "HASH FILENAME" format for -c, closes 14866 
function                                             old     new   delta
md5_sha1_sum_main                                    496     501      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-07-11 14:36:39 +02:00
Denys Vlasenko 8d67007a4d top: improve large PID display in memory ('s') mode 
function                                             old     new   delta
display_topmem_process_list                          530     564     +34

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-12 11:44:47 +02:00
Denys Vlasenko b9c2108b26 examples/var_service/dhcp_if: make helper scripts more talkative 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-12 11:07:12 +02:00
Denys Vlasenko 1099a27696 top: code shrink 
function                                             old     new   delta
display_process_list                                1186    1168     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-10 14:04:34 +02:00
Denys Vlasenko 69f82e305b top: code shrink 
function                                             old     new   delta
display_process_list                                1191    1186      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-10 13:51:09 +02:00
Denys Vlasenko 294881d2e9 top: fix display of large PID/PPID 
function                                             old     new   delta
display_process_list                                1077    1191    +114
.rodata                                           104803  104807      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 118/0)             Total: 118 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-10 12:56:28 +02:00
Denys Vlasenko 67fd6be0bb seedrng: do not hash in a constant string, it's not adding entropy 
function                                             old     new   delta
seedrng_main                                         906     880     -26
.rodata                                           104899  104873     -26
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-52)             Total: -52 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-03 12:48:50 +02:00
Denys Vlasenko 3bfbcb5807 seedrng: restore error check on fsync 
Or else security people will never stop nagging us.

function                                             old     new   delta
seedrng_main                                         884     906     +22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-02 15:03:32 +02:00
Denys Vlasenko 5ba56e8b95 seedrng: it's not a part of util-linux, move to miscutils 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-02 14:53:14 +02:00
Denys Vlasenko 1a290f889c init: do not set HOME 
function                                             old     new   delta
.rodata                                           104906  104899      -7
init_main                                            786     776     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-17)             Total: -17 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-02 14:47:53 +02:00
Denys Vlasenko 9b6f44e040 style fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-01 17:06:00 +02:00
Denys Vlasenko 54867fec12 seedrng: shorten --help, assorted small cleanups 
function                                             old     new   delta
packed_usage                                       34295   34290      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-01 16:51:06 +02:00
Denys Vlasenko b5624be6df seedrng: reduce MAX_SEED_LEN from 512 to 256 
As proposed by Jason.
getrandom() is more likely to block on reads larger than this.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-01 16:37:39 +02:00
Denys Vlasenko 7471658038 seedrng: do not hash lengths, they are very predictable 
function                                             old     new   delta
seedrng_main                                         982     930     -52

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-01 02:06:20 +02:00
Denys Vlasenko fb4546c7af seedrng: code shrink 
function                                             old     new   delta
seedrng_main                                         994     982     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-01 01:58:57 +02:00
Denys Vlasenko d5bd2e57a7 seedrng: explain why we need locking and fsync'ing 
Also, do not test for locking errors: on Linux, they do not happen.

function                                             old     new   delta
.rodata                                           104900  104878     -22
seedrng_main                                        1022     994     -28

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-05-01 01:50:44 +02:00
Denys Vlasenko 0bca489b24 seedrng: remove redundant assignment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 23:53:28 +02:00
Denys Vlasenko 4648754119 seedrng: re-add fsync after unlink, and explain its purpose 
function                                             old     new   delta
seedrng_main                                        1003    1022     +19

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 23:17:58 +02:00
Denys Vlasenko 267178c628 seedrng: include fiel/dir names in error messages 
function                                             old     new   delta
.rodata                                           104898  104900      +2
seedrng_main                                        1011    1003      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 2/-8)               Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 15:50:45 +02:00
Denys Vlasenko d49da38aa3 seedrng: use more xfuncs where appropriate 
function                                             old     new   delta
.rodata                                           104929  104898     -31
seedrng_main                                        1050    1011     -39

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 15:45:53 +02:00
Denys Vlasenko 2cbfd01c15 seedrng: code shrink 
Struct initializers do this double init:
># util-linux/seedrng.c:88:              struct pollfd random_fd = {
        movl    $0, 132(%esp)   #, random_fd
        movl    $0, 136(%esp)   #, random_fd
...
># util-linux/seedrng.c:88:              struct pollfd random_fd = {
        movl    %eax, 140(%esp) # _110, random_fd.fd
        movw    $1, 144(%esp)   #, random_fd.events

and close(random_fd.fd) needs to pull the item from the stack:
        pushl   132(%esp)       # random_fd.fd
        call    close   #

function                                             old     new   delta
seedrng_main                                        1076    1050     -26

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 15:38:44 +02:00
Denys Vlasenko 52f3cf7e5f seedrng: simplify read_new_seed() to not have error return 
gcc in fact detects this and does this transformation
when generating code - no object code changes.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 15:33:28 +02:00
Denys Vlasenko 282b61a649 seedrng: prepare read_new_seed() to not need a "success" retval 
We do not expect /dev/[u]random to be not openable/readable.
If they are, just bail out (something is obviously very wrong).

function                                             old     new   delta
seedrng_main                                        1077    1076      -1
.rodata                                           104939  104929     -10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 15:25:55 +02:00
Denys Vlasenko 0fa16fc7a2 seedrng: do not try to continue on unexpected errors (just exit) 
function                                             old     new   delta
.rodata                                           104946  104938      -8
seedrng_main                                        1225    1077    -148
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-156)           Total: -156 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 15:17:32 +02:00
Denys Vlasenko 002d6ee46d ifplugd: split -a into -a and -A, latter disables upping in iface creation 
-a meant both "don't up iface before each link detection" and "don't up iface
when it newly appears". But they are not the same.

I have a dock station where eth1 appears when I attach the notebook to it
(looks like it's hanging off a USB bus). IOW: appearance of this interface
is functionally equivalent to attaching ethernet cable.
ifplugd meant to be able to *automatically* handle this case.
Currently, with -a, it couldn't: newly appearing iface stayed down,
user had to manually up it.

function                                             old     new   delta
packed_usage                                       34253   34296     +43
.rodata                                           104876  104877      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 44/0)               Total: 44 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-30 14:33:14 +02:00
Denys Vlasenko 8456c21c09 seedrng: chdir to the SEED_DIRECTORY - avoid concat_path_file's 
function                                             old     new   delta
seedrng_main                                        1273    1225     -48

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-27 17:53:12 +02:00
Denys Vlasenko c82a0cd2b0 seedrng: shorten strings 
function                                             old     new   delta
.rodata                                           104894  104876     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-27 17:33:15 +02:00
Denys Vlasenko 401356511c seedrng: remove unnecessary zero-filling of local variables 
function                                             old     new   delta
seedrng_main                                        1292    1273     -19

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-27 17:20:43 +02:00
Denys Vlasenko 6da9947358 seedrng: remove unnecessary zero-filling of local variables 
function                                             old     new   delta
seedrng_main                                        1323    1292     -31

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-27 17:09:38 +02:00
Denys Vlasenko 137b205722 seedrng: shrink --help text 
function                                             old     new   delta
packed_usage                                       34280   34253     -27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-27 16:54:18 +02:00
Denys Vlasenko 0cdd6f5792 libbb: fix fallout from nth_string() robustification, closes 14726 
function                                             old     new   delta
parse_common                                         187     228     +41

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-04-27 15:33:55 +02:00
Denys Vlasenko 55f969a006 taskset: fix printf format mismatch in !FEATURE_TASKSET_FANCY config. closes 14616 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-03-01 10:49:17 +01:00
Denys Vlasenko 5fe20cf321 ash: do not truncate failed tilde expansion on unknown user names 
Do not skip over "*p = c;" statement.

Testcase: echo ~~nouser/qwe

function                                             old     new   delta
argstr                                              1396    1406     +10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-03-01 10:10:22 +01:00
Denys Vlasenko 7750b5a25a ash: fix unsafe use of mempcpy 
function                                             old     new   delta
subevalvar                                          1549    1557      +8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-03-01 09:56:54 +01:00
Denys Vlasenko 1891fdda59 libbb/sha1: update config help text with new performance numbers 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-18 17:09:51 +01:00
Denys Vlasenko c2e7780e52 libbb/sha256: explicitly use sha256rnds2's %xmm0 (MSG) argument 
Else, the code seemingly does not use MSG.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-12 00:52:12 +01:00
Denys Vlasenko 1f272c06d0 whitespace fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-11 23:03:27 +01:00
Denys Vlasenko dda77e8376 libbb/sha1: revert last commit: pshufb is a SSSE3 insn, can't use it 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-11 14:53:26 +01:00
Denys Vlasenko 8154146be4 libbb/sha1: shrink unrolled x86-64 code 
function                                             old     new   delta
sha1_process_block64                                3481    3384     -97

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-11 06:08:27 +01:00
Denys Vlasenko 6f56fa1713 libbb/sha: improve comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-10 15:38:10 +01:00
Denys Vlasenko 6a6c1c0ea9 whitespace fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-09 11:29:23 +01:00
Denys Vlasenko caa9c4f707 libbb/sha256: code shrink in x86 assembly 
function                                             old     new   delta
sha256_process_block64_shaNI 32-bit                  676     673      -3
sha256_process_block64_shaNI 64-bit                  680     677      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-09 01:50:22 +01:00
Denys Vlasenko 11bcea7ac0 libbb/sha256: code shrink in 64-bit x86 
function                                             old     new   delta
sha256_process_block64_shaNI                         701     680     -21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-09 01:42:49 +01:00
Denys Vlasenko 461a994b09 libbb/sha256: code shrink in 32-bit x86 
function                                             old     new   delta
sha256_process_block64_shaNI                         697     676     -21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-09 01:30:23 +01:00
Denys Vlasenko c0ff0d4528 libbb/sha256: code shrink in 32-bit x86 
function                                             old     new   delta
sha256_process_block64_shaNI                         713     697     -16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-09 00:33:39 +01:00
Denys Vlasenko eb8d5f3b8f libbb/sha1: shrink x86 hardware accelerated hashing (32-bit) 
function                                             old     new   delta
sha1_process_block64_shaNI                           511     507      -4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-08 15:34:02 +01:00
Denys Vlasenko eb52e7fa52 libbb/sha1: shrink x86 hardware accelerated hashing (32-bit) 
function                                             old     new   delta
sha1_process_block64_shaNI                           517     511      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-08 15:23:26 +01:00
Denys Vlasenko 71a1cccaad libbb/sha1: shrink x86 hardware accelerated hashing 
function                                             old     new   delta
sha1_process_block64_shaNI 32-bit                    524     517      -7
sha1_process_block64_shaNI 64-bit                    510     508      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-08 08:22:17 +01:00
Denys Vlasenko 4923f74e58 libbb/sha1: shrink unrolled x86-64 code 
function                                             old     new   delta
sha1_process_block64                                3482    3481      -1
.rodata                                           108460  108412     -48
------------------------------------------------------------------------------
(add/remove: 1/4 grow/shrink: 0/2 up/down: 0/-49)             Total: -49 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-08 03:29:16 +01:00
Denys Vlasenko c193cbd6df libbb/sha1: shrink and speed up unrolled x86-64 code 
function                                             old     new   delta
sha1_process_block64                                3514    3482     -32

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-07 02:34:04 +01:00
Denys Vlasenko 987be932ed *: slap on a few ALIGN_PTR where appropriate 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-06 20:07:12 +01:00
Denys Vlasenko ca466f385a *: slap on a few ALIGN* where appropriate 
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>
 2022-02-06 19:53:10 +01:00
Denys Vlasenko 4f40735c87 libbb/sha256: code shrink in 32-bit x86 
function                                             old     new   delta
sha256_process_block64_shaNI                         722     713      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-06 00:56:13 +01:00
Denys Vlasenko 31c1c31077 libbb/sha256: code shrink in 64-bit x86 
function                                             old     new   delta
sha256_process_block64_shaNI                         706     701      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-06 00:33:42 +01:00
Denys Vlasenko a1429fbb8c libbb/sha256: code shrink in 64-bit x86 
function                                             old     new   delta
sha256_process_block64_shaNI                         730     706     -24

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-03 15:17:42 +01:00
Denys Vlasenko de6cb4bed8 libbb/sha256: code shrink in 32-bit x86 
function                                             old     new   delta
sha256_process_block64_shaNI                         747     722     -25

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-02-03 15:11:23 +01:00
Denys Vlasenko 6472ac9428 libbb/sha256: optional x86 hardware accelerated hashing 
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>
 2022-02-03 14:58:02 +01:00
Denys Vlasenko 205042c07a libbb/sha1: in unrolled x86-64 code, pass initial W[] in registers, not on stack 
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>
 2022-01-25 17:21:45 +01:00
Denys Vlasenko 99e22d230d cut: build fix for FEATURE_CUT_REGEX 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-24 07:07:17 +01:00
Denys Vlasenko f12fb1e409 sed: fix handling of escaped delimiters in s/// replacement 
function                                             old     new   delta
parse_regex_delim                                    111     140     +29

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-23 19:04:27 +01:00
Denys Vlasenko e998c7c032 sed: fix handling of escaped delimiters in s/// search pattern, closes 14541 
function                                             old     new   delta
copy_parsing_escapes                                  67      96     +29
parse_regex_delim                                    109     111      +2
get_address                                          213     215      +2
add_cmd                                             1176    1178      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 35/0)               Total: 35 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-23 18:48:49 +01:00
Denys Vlasenko 33a9f34df5 add busybox_ldscript.README.txt 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-23 15:46:05 +01:00
Denys Vlasenko 39369ff460 libbb/sha1: use SSE2 in unrolled x86-64 code. ~10% faster 
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>
 2022-01-23 12:57:27 +01:00
Denys Vlasenko 1e825acf8d libbb: shrink lineedit_read_key() 
function                                             old     new   delta
lineedit_read_key                                    237     231      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-18 00:36:42 +01:00
Denys Vlasenko 8ad2acf352 fix "defined but not used" warnings 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-17 23:59:46 +01:00
Denys Vlasenko 12566e7f9b ash,hush: fix handling of SIGINT while waiting for interactive input 
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>
 2022-01-17 11:46:23 +01:00
Denys Vlasenko a277506a64 shell: add comments about SIGINT-related problems 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-16 23:54:46 +01:00
Denys Vlasenko c2788f88f4 libbb: introduce and use chdir_or_warn() 
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>
 2022-01-13 12:56:10 +01:00
Denys Vlasenko 931c55f9e2 libbb: invert the meaning of SETUP_ENV_NO_CHDIR -> SETUP_ENV_CHDIR 
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>
 2022-01-13 12:50:48 +01:00
Denys Vlasenko b3eec1651f sulogin: util-linux does not say "normal startup" on Ctrl-D 
function                                             old     new   delta
sulogin_main                                         341     331     -10
.rodata                                           104327  104312     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-25)             Total: -25 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-13 01:43:11 +01:00
Denys Vlasenko 96771ec5f5 sulogin: start _login_ shell only with -p 
Also, shorten/eliminate messages to be closer to util-linux.

function                                             old     new   delta
packed_usage                                       34233   34238      +5
sulogin_main                                         340     341      +1
.rodata                                           104380  104327     -53
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 6/-53)             Total: -47 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-13 01:38:47 +01:00
Denys Vlasenko 68b402ee51 ash: ^C with SIG_INGed SIGINT should not exit the shell 
function                                             old     new   delta
__pgetc                                              501     522     +21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-13 01:15:10 +01:00
Denys Vlasenko d162a7b978 sulogin: increase util-linux compatibility 
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>
 2022-01-12 23:19:11 +01:00
Denys Vlasenko 004cefa918 reset: better --help text 
function                                             old     new   delta
packed_usage                                       34175   34233     +58

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-12 17:21:14 +01:00
Denys Vlasenko 524fecf7c3 nmeter: %[md] %[mw] - dirty file-backed pages, writeback pages 
function                                             old     new   delta
collect_mem                                          333     387     +54
.rodata                                           104369  104380     +11
packed_usage                                       34184   34175      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 65/-9)              Total: 56 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-11 19:32:16 +01:00
Denys Vlasenko ff8fda8482 ls: implement ls -sh (human-readable allocated blocks) 
function                                             old     new   delta
display_single                                       979    1018     +39

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-08 22:59:49 +01:00
Denys Vlasenko 143356876b libbb/sha1: add a comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-08 22:43:24 +01:00
Denys Vlasenko e2952dfaff awk: input numbers are never octal or hex (only program consts can be) 
function                                             old     new   delta
next_token                                           825     930    +105
getvar_i                                             114     129     +15
nextchar                                              49      53      +4
my_strtod                                            138       -    -138
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 3/0 up/down: 124/-138)          Total: -14 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-08 22:42:35 +01:00
Denys Vlasenko e7ff29402d libbb/sha1: simplify cpuid code 
function                                             old     new   delta
sha1_begin                                           107     106      -1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-08 01:25:23 +01:00
Denys Vlasenko 805ececa61 whitespace fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-08 00:41:09 +01:00
Denys Vlasenko 0bab5da37e libbb/sha1: tweak comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-07 14:55:31 +01:00
Denys Vlasenko 89092c61bc powertop: fix cpuid asm: ebx saving/restoring is properly done by gcc 
function                                             old     new   delta
print_intel_cstates                                  481     477      -4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-07 01:33:46 +01:00
Denys Vlasenko a96ccbefe4 libbb/sha1: optional i686 hardware accelerates hashing 
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>
 2022-01-07 01:32:13 +01:00
Denys Vlasenko 711e20ecb8 libbb/sha1: optional x86-64 hardware accelerates hashing 
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>
 2022-01-07 00:43:59 +01:00
Denys Vlasenko 6062c0d19b libbb: change xstrndup, xmemdup to take size_t as size parameter 
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>
 2022-01-05 23:03:54 +01:00
Denys Vlasenko db5546ca10 libbb: code shrink: introduce and use [_]exit_SUCCESS() 
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>
 2022-01-05 22:16:06 +01:00
Denys Vlasenko 076f5e064f less: code shrink 
function                                             old     new   delta
restore_tty                                            -      29     +29
less_main                                           2107    2105      -2
getch_nowait                                         253     251      -2
buffer_print                                         614     612      -2
less_exit                                             51      12     -39
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 29/-45)            Total: -16 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-05 22:04:21 +01:00
Denys Vlasenko 34e0bb3931 sort: support -h 
function                                             old     new   delta
static.scale_suffix                                    -      62     +62
.rodata                                           104304  104336     +32
compare_keys                                         820     848     +28
packed_usage                                       34159   34184     +25
static.suffix                                          -       9      +9
sort_opt_str                                          37      38      +1
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 4/0 up/down: 157/0)             Total: 157 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-05 12:05:55 +01:00
Denys Vlasenko cc7d2e2178 sort: fix -s -r interaction: 'stable' order is not affected by -r 
function                                             old     new   delta
compare_keys                                         818     820      +2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-04 23:53:21 +01:00
Denys Vlasenko dfd8aafcf5 libbb: fflush_stdout_and_exit(0) still exits with _error_ (not 0!) if fflush fails 
function                                             old     new   delta
fflush_stdout_and_exit                                36      40      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-04 23:36:16 +01:00
Denys Vlasenko 31f45c1b36 libbb: factor out fflush_stdout_and_exit(EXIT_SUCCESS) 
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>
 2022-01-04 23:31:58 +01:00
Denys Vlasenko 286b33721d sed: correctly handle 'w FILE' commands writing to the same file 
function                                             old     new   delta
sed_xfopen_w                                           -      84     +84

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-04 19:42:36 +01:00
Denys Vlasenko ed2af2e82d build system: detect if build host has no bzip2 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-04 14:32:41 +01:00
Denys Vlasenko c3cfcc9242 libbb/sha1: x86_64 version: reorder prologue/epilogue insns 
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>
 2022-01-04 01:45:52 +01:00
Denys Vlasenko 1fc520ed28 md5/shaXsum: use FEATURE_COPYBUF_KB to size the buffer instead of fixed 4k 
function                                             old     new   delta
md5_sha1_sum_main                                    536     565     +29
hash_file                                            419     401     -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 29/-18)             Total: 11 bytes

In my test, for unrolled sha1, COPYBUF_KB=64 increases throughput
from 367 MB/s to 457 MB/s.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-04 00:51:04 +01:00