Denys Vlasenko
cbfdeba660
hush: make LINENO selectable without BASH-COMPAT
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-03-10 16:31:05 +01:00
Ron Yorston
cad3fc743a
libbb: introduce and use fputs_stdout
...
function old new delta
fputs_stdout - 12 +12
zxc_vm_process 7237 7230 -7
yes_main 85 78 -7
write_block 380 373 -7
wrapf 305 298 -7
strings_main 437 430 -7
show_bridge 353 346 -7
rev_main 384 377 -7
put_prompt_custom 58 51 -7
put_cur_glyph_and_inc_cursor 168 161 -7
print_numbered_lines 152 145 -7
print_named_ascii 130 123 -7
print_name 135 128 -7
print_login_issue 386 379 -7
print_ascii 208 201 -7
powertop_main 1249 1242 -7
od_main 1789 1782 -7
logread_main 518 511 -7
head_main 804 797 -7
display_process_list 1319 1312 -7
cut_main 1002 995 -7
bb_dump_dump 1550 1543 -7
bb_ask_noecho 393 386 -7
baseNUM_main 702 695 -7
expand_main 755 745 -10
dumpleases_main 497 487 -10
write1 12 - -12
putcsi 37 23 -14
print_login_prompt 55 41 -14
paste_main 525 511 -14
cat_main 440 426 -14
print_it 245 230 -15
print_addrinfo 1188 1171 -17
print_rule 770 750 -20
print_linkinfo 842 822 -20
httpd_main 791 771 -20
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/34 up/down: 12/-341) Total: -329 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-02-03 20:52:40 +01:00
Denys Vlasenko
3b053051c7
hush: code shrink
...
function old new delta
hush_main 1071 1066 -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-5) Total: -5 bytes
text data bss dec hex filename
1020110 559 5020 1025689 fa699 busybox_old
1020037 559 5020 1025616 fa650 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-01-04 03:05:34 +01:00
Denys Vlasenko
3c13da3dab
libbb: introduce and use xgettimeofday(), do not truncate 64-bit time_t in shells
...
function old new delta
xgettimeofday - 11 +11
get_local_var_value 280 281 +1
svlogd_main 1323 1322 -1
change_epoch 67 66 -1
timestamp_and_log 461 458 -3
hwclock_main 301 298 -3
fmt_time_bernstein_25 135 132 -3
step_time 331 326 -5
script_main 1207 1202 -5
machtime 34 28 -6
curtime 61 54 -7
ts_main 423 415 -8
nmeter_main 761 751 -10
gettime1900d 67 46 -21
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/12 up/down: 12/-73) Total: -61 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-30 23:48:01 +01:00
Denys Vlasenko
77a51a2709
randomconfig fixes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-29 16:53:11 +01:00
Denys Vlasenko
c7ef818768
hush: make comment more clear
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-27 16:04:54 +01:00
Denys Vlasenko
1237d627e9
hush: fix this case: echo "SCRIPT" | hush
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-25 19:01:49 +01:00
Denys Vlasenko
46a71dc30c
hush: if !EDITING, do not regenerate prompt for every input char
...
function old new delta
fgetc_interactive 261 258 -3
pseudo_exec_argv 406 399 -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10) Total: -10 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-25 18:49:29 +01:00
Denys Vlasenko
521220ed1a
hush: fix ^C in INTERACTIVE, !EDITING config
...
function old new delta
refill_HFILE_and_getc 88 170 +82
fgetc_interactive 226 250 +24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 106/0) Total: 106 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-23 23:44:55 +01:00
Denys Vlasenko
18bcaf374c
hush: revert "make interactive ^C break out of PS2 mode"
...
It made ^C break out of the entire shell, if we aren't in PS2 mode.
Need a better idea.
function old new delta
expand_one_var 2344 2353 +9
syntax_error_unterm_ch 21 29 +8
parse_dollar 817 824 +7
parse_stream 2251 2238 -13
fgetc_interactive 249 227 -22
syntax_error_unterm_str 26 - -26
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 3/2 up/down: 24/-61) Total: -37 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-23 23:01:18 +01:00
Denys Vlasenko
649acb9e23
hush: fix PS1 prompth in !EDITING config
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-23 15:29:13 +01:00
Denys Vlasenko
a7b52d26c4
hush: fix fallout from tweaking ${var:START:LEN} code
...
function old new delta
expand_one_var 2344 2353 +9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-23 12:38:03 +01:00
Denys Vlasenko
93e2a22482
shell: for signal exitcode, use 128 | sig, not 128 + sig - MIPS has signal 128
...
function old new delta
wait_for_child_or_signal 213 214 +1
refill_HFILE_and_getc 89 88 -1
getstatus 97 96 -1
builtin_wait 339 337 -2
checkjobs 187 183 -4
process_wait_result 450 444 -6
waitcmd 290 281 -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/6 up/down: 1/-23) Total: -22 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-23 12:23:21 +01:00
Denys Vlasenko
0ab2dd4f28
hush: fix comment
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-23 02:22:08 +01:00
Denys Vlasenko
00eb23b47a
bc: do not allocate line editing state until needed
...
function old new delta
xc_read_line 324 353 +29
free_line_input_t 34 39 +5
xc_vm_init 656 640 -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 34/-16) Total: 18 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-21 21:36:58 +01:00
Denys Vlasenko
07abc7c6f7
hush: deal with FIXMEs for corner cases in parameter expansion
...
function old new delta
expand_one_var 2323 2344 +21
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-21 10:14:18 +01:00
Denys Vlasenko
bb4e32befa
hush: remove one redundant getpid() on every startup
...
function old new delta
hush_main 1151 1147 -4
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-20 16:36:00 +01:00
Denys Vlasenko
a8e19608fc
hush: code shrink
...
function old new delta
run_applet_main - 20 +20
builtin_kill 296 288 -8
builtin_test 19 10 -9
builtin_printf 19 10 -9
builtin_echo 19 10 -9
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/4 up/down: 20/-35) Total: -15 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-14 03:52:54 +01:00
Denys Vlasenko
63139b531f
hush: if login shell, also source ~/.profile
...
function old new delta
hush_main 1101 1151 +50
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-13 22:00:56 +01:00
Denys Vlasenko
49142d48bd
hush: NOMMU fix for hush-psubst/tick6.tests
...
function old new delta
hush_main 1759 1766 +7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-13 18:44:07 +01:00
Denys Vlasenko
9cabd17e55
hush: fix -c SCRIPT handling
...
function old new delta
hush_main 1763 1759 -4
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-13 18:24:11 +01:00
Denys Vlasenko
965b795b87
decrease paddign: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nilly
...
text data bss dec hex filename
1021988 559 5052 1027599 fae0f busybox_old
1021236 559 5052 1026847 fab1f busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-30 13:03:03 +01:00
Denys Vlasenko
dc9c10a7b2
hush: make interactive ^C break out of PS2 mode
...
function old new delta
syntax_error_unterm_str - 26 +26
parse_stream 2238 2251 +13
fgetc_interactive 243 249 +6
parse_dollar 824 817 -7
syntax_error_unterm_ch 29 21 -8
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/2 up/down: 45/-15) Total: 30 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-11-16 13:00:44 +01:00
Denys Vlasenko
a7c065354f
shell: update comments on the status of [[ ]] compat
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-10-31 04:32:34 +01:00
Denys Vlasenko
d2241f5902
shell: better support of [[ ]] bashism
...
Still rather rudimentary for ash
function old new delta
binop 433 589 +156
check_operator 65 101 +36
done_word 736 769 +33
test_main 405 418 +13
parse_stream 2227 2238 +11
ops_texts 124 133 +9
ops_table 80 86 +6
run_pipe 1557 1562 +5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/0 up/down: 269/0) Total: 269 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-10-31 03:34:07 +01:00
Denys Vlasenko
e16f7eb596
hush: output bash-compat killing signal names
...
This significantly syncronises ash-signals and hush-signals tests.
function old new delta
process_wait_result 449 450 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-10-24 04:26:43 +02:00
Denys Vlasenko
b65d6cb00f
hush: do not print killing signal name in cmd_whihc_dies_on_signal
...
function old new delta
process_wait_result 438 449 +11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-10-24 03:33:32 +02:00
Denys Vlasenko
67e1529b92
nologin: make it possible to build it as single applet
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-06-24 15:05:22 +02:00
Denys Vlasenko
d5314e7129
suppress a few compile warnings
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-06-24 09:31:30 +02:00
Ron Yorston
9f3b410006
ash,hush: drop pointer check before calls to show_history
...
show_history() checks that its argument in non-null so there's
no need to repeat the test at call sites.
function old new delta
historycmd 25 17 -8
builtin_history 29 21 -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-16) Total: -16 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-04-30 17:30:02 +02:00
Denys Vlasenko
e4a0612efd
hush: fix negative_arith.tests: glob-protect dash in "$((arith))"
...
function old new delta
expand_vars_to_list 1026 1082 +56
parse_dollar 810 811 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 57/0) Total: 57 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-02-21 17:21:34 +01:00
Denys Vlasenko
3ced804e31
hush: make "exit" in trap use pre-trap exitcode - fix for nested trap
...
function old new delta
check_and_run_traps 276 278 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-02-21 02:55:53 +01:00
Denys Vlasenko
cc9ecd9af1
hush: make "exit" in trap use pre-trap exitcode
...
function old new delta
check_and_run_traps 259 276 +17
builtin_exit 42 53 +11
hush_main 1086 1096 +10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 38/0) Total: 38 bytes
Fixes exitcode_trap2.tests.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-02-21 02:18:06 +01:00
Denys Vlasenko
bb095f4838
hush: implement "return NUM in trap sets $? after trap"
...
function old new delta
builtin_return 47 67 +20
check_and_run_traps 243 259 +16
run_pipe 1583 1597 +14
hush_main 1076 1086 +10
run_list 1054 1055 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 61/0) Total: 61 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-02-20 16:37:59 +01:00
Denys Vlasenko
23bc562a05
ash,hush: add comment about masked SIGCHLD, handle SIG_IGNed SIGHUP as in bash
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-02-18 16:46:01 +01:00
Ron Yorston
9e2a5668fd
ash,hush: allow builtins to be tab-completed, closes 7532
...
function old new delta
complete_cmd_dir_file 678 830 +152
get_builtin_name - 35 +35
optschanged 125 132 +7
hush_main 1069 1076 +7
save_command_ps_at_cur_history 76 78 +2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/0 up/down: 203/0) Total: 203 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-01-29 15:23:17 +01:00
Denys Vlasenko
259747caa7
hush: fix preprocessor directives indentation
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-11-28 10:28:14 +01:00
Denys Vlasenko
21806562ca
hush: restore redirected stdin
...
function old new delta
restore_redirects 52 95 +43
save_fd_on_redirect 243 253 +10
hfopen 90 99 +9
fgetc_interactive 259 261 +2
builtin_type 117 115 -2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 64/-2) Total: 62 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-11-01 14:16:07 +01:00
Denys Vlasenko
18a90ec846
hush: fix "set -o INVALID" affecting -e flag state
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-09-05 14:07:14 +02:00
James Byrne
6937487be7
libbb: reduce the overhead of single parameter bb_error_msg() calls
...
Back in 2007, commit 0c97c9d437
("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().
This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.
Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.
This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.
The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):
Arm: -92 bytes
MIPS: -52 bytes
PPC: -1836 bytes
x86_64: -938 bytes
Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-07-02 11:35:03 +02:00
Denys Vlasenko
f3634584d0
ash,hush: show 'c' in $- if run in "sh -c CMD"
...
function old new delta
options 552 599 +47
expand_one_var 2375 2385 +10
optletters_optnames 60 64 +4
hush_main 1108 1111 +3
ash_main 1150 1152 +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 66/0) Total: 66 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-06-03 12:21:04 +02:00
Denys Vlasenko
d8740b265a
hush: show 's' in $-
...
function old new delta
expand_one_var 2362 2375 +13
hush_main 1104 1108 +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 17/0) Total: 17 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-19 19:11:21 +02:00
Denys Vlasenko
76a4e8361a
hush: allocate line edit buffer only for interactive shell
...
function old new delta
builtin_history 16 20 +4
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-19 18:24:52 +02:00
Denys Vlasenko
ef8985c688
hush: implement $-, set default PATH if it is not set on startup
...
function old new delta
expand_one_var 2311 2362 +51
hush_main 1075 1104 +29
parse_dollar 790 791 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 81/0) Total: 81 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-19 16:29:09 +02:00
Denys Vlasenko
0c36019369
hush: set default PS1/2 only if we interactive
...
"env - hush SCRIPT" invocation (that is, with empty environment)
should not show PS1/2 in "set" output.
function old new delta
hush_main 1070 1075 +5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-19 15:39:32 +02:00
Denys Vlasenko
08fb82c80c
hush: handle LINENO the same way as RANDOM: variable is "ephemeral"
...
"env - hush" invocation (that is, with empty environment)
should not show LINENO in "set" output.
function old new delta
get_local_var_value 263 294 +31
hush_main 1105 1070 -35
handle_changed_special_names 79 38 -41
run_pipe 1834 1765 -69
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 31/-145) Total: -114 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-19 15:39:32 +02:00
Denys Vlasenko
4ebcdf7396
hush: remove code to track PS1/2 values dynamically - it's too much work
...
Assignments / exports / unsets of variables are far more frequent than
prompt printing, and if we show prompt, we are likely to be limited by
user typing speed - do not optimize for that scenario.
Just re-query $PS1 / $PS2 values when need to show the prompt.
function old new delta
fgetc_interactive 236 259 +23
set_vars_and_save_old 150 147 -3
pseudo_exec_argv 597 594 -3
hush_main 1110 1105 -5
enter_var_nest_level 38 32 -6
builtin_local 56 50 -6
run_pipe 1857 1834 -23
leave_var_nest_level 127 98 -29
handle_changed_special_names 111 79 -32
cmdedit_update_prompt 57 - -57
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/8 up/down: 23/-164) Total: -141 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-16 15:39:19 +02:00
Denys Vlasenko
0ee0b658b3
hush: small speedup in handle_changed_special_names()
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-16 11:32:26 +02:00
Denys Vlasenko
9e0adb9b09
hush: fix quoted "${notexist-}" expansion to not disappear
...
function old new delta
expand_one_var 2296 2311 +15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-15 13:39:19 +02:00
Denys Vlasenko
d8bd7012a3
hush: fix "export PS1=xyz" and "local PS1=xyz" messing up prompt
...
function old new delta
helper_export_local 215 253 +38
leave_var_nest_level 107 127 +20
run_pipe 1840 1857 +17
handle_changed_special_names 101 105 +4
shell_builtin_read 1399 1398 -1
done_word 767 766 -1
parse_stream 2249 2245 -4
set_local_var 437 430 -7
is_well_formed_var_name 66 - -66
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 4/4 up/down: 79/-79) Total: 0 bytes
text data bss dec hex filename
952376 485 7296 960157 ea69d busybox_old
952400 485 7296 960181 ea6b5 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-14 18:56:04 +02:00