Age | Commit message (Collapse) | Author |
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The loop
for (j = ARRAY_SIZE(applet_nameofs)-1; j >= 0; j--) {
was intended to terminate when j goes negative, so j needs to be signed.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
get_volid_by_name - 125 +125
ubi_devnum_from_devname - 43 +43
ubi_tools_main 1215 1220 +5
packed_usage 30674 30655 -19
ubirename_main 394 221 -173
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(add/remove: 3/0 grow/shrink: 1/2 up/down: 173/-192) Total: -19 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
ubirename_main - 394 +394
packed_usage 30611 30674 +63
applet_names 2530 2540 +10
Signed-off-by: Sven Eisenberg <sven.eisenberg@novero.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
bb_verror_msg 386 466 +80
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
xvfork_parent_waits_and_exits - 64 +64
exec_prog_or_SHELL - 39 +39
unshare_main 873 810 -63
nsenter_main 663 596 -67
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/2 up/down: 106/-130) Total: -27 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Such information is useless for users of "sort --help"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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KNOWN_APPNAME_OFFSETS=8 versus KNOWN_APPNAME_OFFSETS=0:
function old new delta
find_applet_by_name 55 136 +81
applet_nameofs - 14 +14
run_applet_and_exit 757 758 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
nsenter_main - 663 +663
.rodata 155147 155612 +465
packed_usage 30536 30708 +172
nsenter_longopts - 116 +116
open_by_path_or_target - 58 +58
applet_names 2518 2526 +8
applet_main 2920 2928 +8
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 4/0 up/down: 1490/0) Total: 1490 bytes
text data bss dec hex filename
827956 4078 9080 841114 cd59a busybox_old
829214 4086 9080 842380 cda8c busybox_unstripped
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Bartosz Golaszewski proposed xfchdir()
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
unshare_main - 873 +873
.rodata 154444 155131 +687
packed_usage 30329 30520 +191
unshare_longopts - 106 +106
mount_namespaces - 99 +99
mount_or_die - 51 +51
ns_list - 48 +48
wait_for_exitstatus - 41 +41
opt_str - 17 +17
applet_names 2510 2518 +8
applet_main 2912 2920 +8
applet_suid 91 92 +1
applet_install_loc 182 183 +1
------------------------------------------------------------------------------
(add/remove: 8/0 grow/shrink: 6/0 up/down: 2131/0) Total: 2131 bytes
text data bss dec hex filename
826110 4070 9080 839260 cce5c busybox_old
827961 4078 9080 841119 cd59f busybox_unstripped
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
udhcpd_main 1501 1531 +30
d6_recv_raw_packet 251 264 +13
perform_d6_release 188 198 +10
udhcpc6_main 2443 2449 +6
udhcp_recv_raw_packet 582 588 +6
udhcp_recv_kernel_packet 132 138 +6
send_d6_renew 140 146 +6
d6_recv_kernel_packet 118 124 +6
send_renew 77 82 +5
send_discover 85 90 +5
send_decline 84 89 +5
send_d6_select 97 102 +5
send_d6_discover 174 179 +5
perform_release 167 172 +5
count_lines 72 74 +2
udhcpc_main 2836 2837 +1
bb_info_msg 125 - -125
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 17/4 up/down: 117/-180) Total: -63 bytes
text data bss dec hex filename
924935 906 17160 943001 e6399 busybox_old
924736 906 17160 942802 e62d2 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Presumably, bb_info_msg was used here for syslog logging (-l),
but there is no actual code to activate syslog logging.
Added a TODO note on that, so that selinux users would notice
and fix if needed.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Historic "System Maintenance Mode" message is a tiny bit cryptic.
Let's say explicitly what we are doing: we are giving user a shell
(presumably to do some maintenance in single-user mode).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
sulogin_main 325 270 -55
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Sulogin is not a suid app, should fail if run by non-root.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This affects only a commented-out code section which searches for bad blocks
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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The array applet_nameofs consumes two bytes per applet. It encodes
nofork/noexec flags
suid flags
the offset of the applet name in the applet_name string
Change the applet_table build tool to store the flags in two separate
arrays (applet_flags and applet_suid). Replace applet_nameofs[] with a
smaller version that only stores a limited number of offsets.
This requires changes to the macros APPLET_IS_NOFORK, APPLET_IS_NOEXEC
and APPLET_SUID.
According to Valgrind the original find_applet_by_name required
353 cycles per call, averaged over all names. Adjusting the number
of known offsets allows space to be traded off against execution time:
KNOWN_OFFSETS cycles bytes (wrt KNOWN_OFFSETS = 0)
0 9057 -
2 4604 32
4 2407 75
8 1342 98
16 908 130
32 884 194
This patch uses KNOWN_OFFSETS = 8.
v2:
Remove some dead code from the applet_table tool;
Treat the applet in the middle of the table as a special case.
v3:
Use the middle applet to adjust the start of the linear search as
well as the last applet found.
v4:
Use an augmented linear search in find_applet_by_name.
Drop the special treatment of the middle name from get_applet_name:
most of the advantage now derives from the last stored value.
v5:
Don't store index in applet_nameofs, it can be calculated.
v6:
Tweaks by Denys
function old new delta
find_applet_by_name 25 125 +100
applet_suid - 92 +92
run_applet_no_and_exit 452 460 +8
run_applet_and_exit 695 697 +2
applet_name_compare 31 - -31
applet_nameofs 734 14 -720
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 3/1 up/down: 202/-751) Total: -549 bytes
text data bss dec hex filename
925464 906 17160 943530 e65aa busybox_old
924915 906 17160 942981 e6385 busybox_unstripped
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This reverts commit 2fb63292f7083fb259a3f8d8ee70ef8acdaed626.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Based on a patch by Veli-Pekka Peltola <veli-pekka.peltola@ray.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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As reported in bug 8506:
$ X=abcdÉfghÍjklmnÓpqrstÚvwcyz
$ echo ${#X}
abcd26
The result should be 26.
This regression was introduced by:
<d68d1fb> 2015-05-18 [Ron Yorston] ash: code shrink around varvalue
The length in characters was being used to discard the contents of
the variable instead of the length in bytes.
URL: https://bugs.busybox.net/8506
Reported-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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function old new delta
set_alarm - 27 +27
fgets_and_trim 76 92 +16
wget_main 2610 2616 +6
open_socket 64 54 -10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
nmeter_main 707 745 +38
init_functions 48 44 -4
init_delay 63 - -63
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(add/remove: 0/1 grow/shrink: 1/1 up/down: 38/-67) Total: -29 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
nmeter_main 709 707 -2
init_cr 15 12 -3
collect_time 141 131 -10
collect_cpu 610 593 -17
init_cpu 82 63 -19
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(add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-51) Total: -51 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
rdval 34 157 +123
collect_int 123 122 -1
collect_thread_nr 65 62 -3
collect_blk 559 552 -7
collect_if 207 199 -8
collect_fork 119 111 -8
collect_ctx 119 111 -8
collect_fd 81 71 -10
collect_swp 120 107 -13
collect_cpu 623 610 -13
collect_mem 371 339 -32
rdval_loadavg 38 - -38
vrdval 170 - -170
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/10 up/down: 123/-311) Total: -188 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
put 52 43 -9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
collect_mem 361 371 +10
collect_swp 116 120 +4
vrdval 168 170 +2
collect_thread_nr 63 65 +2
collect_int 121 123 +2
collect_if 205 207 +2
collect_fork 117 119 +2
collect_fd 79 81 +2
collect_ctx 117 119 +2
collect_cpu 621 623 +2
collect_blk 557 559 +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/0 up/down: 32/0) Total: 32 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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