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busybox/coreutils
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Denys Vlasenko e6a2f4cc5a libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 
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
------------------------------------------------------------------------------
(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
------------------------------------------------------------------------------
(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>
2016-04-21 17:39:11 +02:00
..
libcoreutils libbb: more compact API for bb_parse_mode() 2015-10-07 17:55:33 +02:00
basename.c trim extra newlines in help texts 2015-01-24 19:46:45 +01:00
cal.c Use unsigned printf/scanf conversion where more appropriate 2013-11-29 16:45:45 +01:00
cat.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
catv.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
chgrp.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
chmod.c libbb: more compact API for bb_parse_mode() 2015-10-07 17:55:33 +02:00
chown.c libbb: make parse_chown_usergroup_or_die() set unspecified uid/gid to -1 2015-10-19 04:37:19 +02:00
chroot.c libbb: make xchroot do a chdir("/") after chroot 2012-03-08 00:28:24 +01:00
cksum.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
comm.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
Config.src stat: make -f optional. This allows to build stat for non-linux systems 2015-10-30 22:10:44 +01:00
cp.c Add conditional support for -v / --verbose 2014-05-19 16:23:50 +02:00
cut.c whitespace fixes. no code changes 2013-01-14 01:34:48 +01:00
date.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
dd.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
df.c df: fix -T option when ENABLE_FEATURE_HUMAN_READABLE=0 2014-09-20 18:55:17 +02:00
dirname.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
dos2unix.c dos2unix: try to preserve ownership. closes 8311 2016-01-17 03:50:36 +01:00
du.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
echo.c echo: make escape sequences depend on fancy mode 2015-07-31 03:47:49 +02:00
env.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
expand.c expand: use printable_string instead of hard-coding implementation 2013-12-16 03:38:24 +01:00
expr.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
false.c special-case {true,false,test} --help 2015-04-21 16:00:41 +02:00
fold.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
fsync.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
head.c Commonalize typical [b,]k,m suffix struct 2013-07-13 23:49:45 +02:00
hostid.c hostid: do not output sign-extended host id. Closes 6056 2013-03-04 03:04:38 +01:00
id_test.sh
id.c platform: use KERNEL_VERSION to simplify uClibc version checking 2013-03-12 11:13:22 -04:00
install.c libbb: more compact API for bb_parse_mode() 2015-10-07 17:55:33 +02:00
Kbuild.src sync: add support for -d -f FILE 2015-07-21 19:50:48 +02:00
length.c.disabled move help text from include/usage.src.h to debianutils/*.c e2fsprogs/*.c editors/*.c loginutils/*.c mailutils/*.c 2011-04-03 01:33:55 +02:00
ln.c Removes stray empty line from code 2015-07-13 03:25:46 +02:00
logname.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
ls.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
md5_sha1_sum.c foo*sum: Correct syntax error 2013-07-04 11:33:42 +02:00
mkdir.c libbb: more compact API for bb_parse_mode() 2015-10-07 17:55:33 +02:00
mkfifo.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
mknod.c whitespace cleanup. no code changes 2013-01-14 15:57:44 +01:00
mv.c Add conditional support for -v / --verbose 2014-05-19 16:23:50 +02:00
nice.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
nohup.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
od_bloaty.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
od.c od: code shrink, fix "od --traditional FILE" 2011-05-21 17:43:06 +02:00
printenv.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
printf.c printf: short-circuit output when argument to %b includes \c 2016-01-31 22:23:05 +01:00
pwd.c whitespace fixes 2011-10-28 14:07:44 +02:00
readlink.c readlink: note that our -f is really -e 2013-03-12 11:38:03 -04:00
realpath.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
rm.c Add conditional support for -v / --verbose 2014-05-19 16:23:50 +02:00
rmdir.c Add conditional support for -v / --verbose 2014-05-19 16:23:50 +02:00
seq.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
shuf.c fix whitespaces 2015-06-07 18:19:47 +02:00
sleep.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
sort.c sort: "-o FILE", not "-o", is the syntax 2016-04-02 18:20:26 +02:00
split.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
stat.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
stty.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
sum.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
sync.c sync: add support for -d -f FILE 2015-07-21 19:50:48 +02:00
tac.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
tail.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
tee.c libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 2016-04-21 17:39:11 +02:00
test_ptr_hack.c
test.c special-case {true,false,test} --help 2015-04-21 16:00:41 +02:00
touch.c touch: add conditional support for -h 2013-09-11 11:58:33 +02:00
tr.c tr: support octal ranges 2015-10-26 17:18:07 +01:00
true.c special-case {true,false,test} --help 2015-04-21 16:00:41 +02:00
truncate.c truncate: use O_WRONLY|O_NONBLOCK 2016-01-13 13:30:20 -05:00
tty.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
uname.c uname: make OS name configurable 2015-08-03 18:09:18 +02:00
uniq.c build system: -fno-builtin-printf 2015-10-07 22:42:45 +02:00
unlink.c unlink: new applet 2014-06-22 20:44:25 +02:00
usleep.c usleep: do not check for usleep error, it should never fail 2011-07-08 08:37:57 +02:00
uudecode.c uudecode: tolerate text input with CR+LF line ends 2015-10-05 15:10:44 +02:00
uuencode.c uuencode: tweak help text 2012-03-05 14:22:33 +01:00
wc.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
who.c build system: -fno-builtin-printf 2015-10-07 22:42:45 +02:00
whoami.c move help text from include/usage.src.h to coreutils/*.c 2011-03-31 14:43:25 +02:00
yes.c