Age | Commit message (Collapse) | Author |
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Also, no need to preserve errno
function old new delta
.rodata 104247 104241 -6
bb_lookup_port 97 83 -14
nc_main 1039 1018 -21
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(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-41) Total: -41 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Back in 2007, commit 0c97c9d43707 ("'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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
packed_usage 31807 31856 +49
applet_names 2701 2708 +7
applet_main 1560 1564 +4
applet_install_loc 195 196 +1
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(add/remove: 0/0 grow/shrink: 4/0 up/down: 61/0) Total: 61 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Those two spaces after tab have no effect, and always a nuisance when editing.
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
nc_main 943 866 -77
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 config item is FEATURE_USE_BSS_TAIL. When it is off (default):
function old new delta
read_config 210 228 +18
doCommands 2279 2294 +15
ipneigh_list_or_flush 763 772 +9
ipaddr_list_or_flush 1256 1261 +5
display_process_list 1301 1306 +5
conspy_main 1378 1383 +5
do_lzo_compress 352 355 +3
do_lzo_decompress 565 567 +2
push 46 44 -2
inetd_main 2136 2134 -2
uevent_main 421 418 -3
addLines 97 92 -5
bb_common_bufsiz1 8193 1024 -7169
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(add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181) Total: -7119 bytes
text data bss dec hex filename
829850 4086 9080 843016 cdd08 busybox_old
829901 4086 1904 835891 cc133 busybox_unstripped
FEATURE_USE_BSS_TAIL=y:
read_config 210 228 +18
doCommands 2279 2294 +15
ipneigh_list_or_flush 763 772 +9
ipaddr_list_or_flush 1256 1261 +5
display_process_list 1301 1306 +5
conspy_main 1378 1383 +5
do_lzo_compress 352 355 +3
do_lzo_decompress 565 567 +2
inetd_main 2136 2134 -2
bb_common_bufsiz1 8193 - -8193
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(add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195) Total: -8133 bytes
text data bss dec hex filename
829850 4086 9080 843016 cdd08 busybox_old
829911 4086 880 834877 cbd3d busybox_unstripped
FIXME: setup_common_bufsiz() calls are missing.
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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This in incompatible with nc-1.10, but makes a lot of sense.
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
packed_usage 28706 28623 -83
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).
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
launch_helper 170 169 -1
setup_heredoc 312 302 -10
handle_dir_common 367 354 -13
expand_vars_to_list 2456 2443 -13
open_transformer 89 74 -15
data_extract_to_command 439 423 -16
do_ipaddr 1406 1389 -17
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(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-85) Total: -85 bytes
Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.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
nc_main 933 946 +13
Signed-off-by: Tomoya Adachi <adachi@il.is.s.u-tokyo.ac.jp>
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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and SKIP_XXXX to IF_NOT_XXXX - the second one was especially
badly named. It was not skipping anything!
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function old new delta
stop_handler 41 38 -3
sulogin_main 508 504 -4
got_cont 4 - -4
cont_handler 11 - -11
startservice 309 297 -12
processorstart 423 409 -14
tcpudpsvd_main 1861 1843 -18
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(add/remove: 0/2 grow/shrink: 0/5 up/down: 0/-66) Total: -66 bytes
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*: shorten error texts
function old new delta
launch_helper - 151 +151
vfork_or_die 20 - -20
sendgetmail_main 1946 1848 -98
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(add/remove: 1/1 grow/shrink: 0/1 up/down: 151/-118) Total: 33 bytes
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function old new delta
bbunpack 358 366 +8
passwd_main 1070 1072 +2
handle_incoming_and_exit 2651 2653 +2
getpty 88 86 -2
script_main 975 972 -3
inetd_main 2036 2033 -3
dname_enc 377 373 -4
make_new_session 474 462 -12
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(add/remove: 0/0 grow/shrink: 3/5 up/down: 12/-24) Total: -12 bytes
text data bss dec hex filename
797429 658 7428 805515 c4a8b busybox_old
797417 658 7428 805503 c4a7f busybox_unstripped
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mount: sanitize environ if called by non-root
*: adjust for slightly different sanitize routine
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size-neutral WRT -std=gnu99 and fixes several compilation errors for strict
C99 mode.
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EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
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tr: stop using globals needlessly.
code: -103 bytes
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*: s/include "busybox.h"/include "libbb.h"
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It's a GPL-ed 'clone' of Dan Bernstein's tcpserver.
Author: Gerrit Pape <pape@smarden.org>
http://smarden.sunsite.dk/ipsvd/
size tcpsvd.o
text data bss dec hex filename
2571 4 16 2591 a1f tcpsvd.o
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no preceding prototype
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prototypes (heresy!), add spaces in places like "flags&NETSTAT_CONNECTED",
removed unused #defines, #ifdef -> #if, use uint32_t for ipv4 addrs.
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small edits to arping
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xfuncs: add dprintf for dietlibc
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use them where appropriate. 200 bytes saved
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