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2016-03-30applet_tables: save space by removing applet name offsetsRon Yorston
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>
2015-10-05Aboriginal linux/musl build fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-07-01applets: Add installation of individual binariesClayton Shotwell
Adding support to install individual binaries if the option is enabled. This also installs the shared libbusybox.so.* library. Signed-off-by: Clayton Shotwell <clshotwe@rockwellcollins.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-18false: make "false --help" exit with 1Denys Vlasenko
function old new delta run_applet_no_and_exit 447 445 -2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-26build system: use od -b instead of od -t x1Denys Vlasenko
od -t is not available in non-CONFIG_DESKTOPed busybox od Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-26build system: do not generate MAX_APPLET_NAME_LEN (unused)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-26buildsys: Add helper to list suid appletsBernhard Reutner-Fischer
Add a helper script that lists all applets that - do or may require SUID provileges (busybox.cfg.suid) - do not require SUID provileges (busybox.cfg.nosuid) Some setups prefer to build two busybox binaries, one that is suid which contains all applets that do or may require suid privileges, and a second one for all the rest (which drops suid). To ease splitting these two binaries, generate a list of CONFIG_ items for the suid binary. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-09-02style fixes, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-19Fix one-applet build for tcpsvdDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-16applet_tables: fix single applet build failure. Closes 4009Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-04-05applets/install.sh: afer quoting of variablesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-04-04fix install.shDenys Vlasenko
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-28applet_tables: do not include libbb.h, that header ir for target buildsDenys Vlasenko
...and applets/applet_tables.c is built on *host*. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-06fix bit rot in scripts/Makefile.IMA #2Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-06.gitignore: add missing ignoresBjørn Forsman
Ignore output files created by "make defconfig; make". Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-20fix "make install"Bernd Jendrissek
Signed-off-by: Bernd Jendrissek <bernd.jendrissek@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-03whitespace fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-09-16simpler check for odDenys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-16build system: test that od is present in the host systemDenys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-08-16*: make GNU licensing statement forms more regularDenys Vlasenko
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>
2010-08-16*: fix "see file License ..." - the file is named LICENSE (in uppercase)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-07-08make usage_compressed.h generation _always_ update mtimeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-07-05randomconfig fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-07-04Yet another attempt to stamp out "make -j" problemsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-26build system: do not rebuild ash and hush on any change to any .c fileDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-06remove defconfig. Now "make defconfig" simply uses defaults from Config.inDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-06make it possible to have include/applets.h-esque entries in .c filesDenys Vlasenko
As an example, bunzip2 and bzcat is changed to use it. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-05Remove requirement that include/applets.h must be sortedDenys Vlasenko
First, I _again_ violated it - two xz-related applets are in wrong positions. Second, planned in-applet help text thing will be so much easier without this requirement... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-04mass renaming Kbuild -> Kbuild.src, Config.in -> Config.srcDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-03-23ash,hush: make it possible to build them individuallyDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-01-25whitespace fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-25build system: more fixes to parallel buildDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-24build system: fix parallel makeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-27applets/usage_compressed: combine many seds in one; hide dd statsBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-22mkfs_ext2: use compatible inode sizes; add -I <inodesize>. (by Vladimir)Denys Vlasenko
function old new delta mkfs_ext2_main 2385 2495 +110 packed_usage 26400 26447 +47 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 157/0) Total: 157 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-02ok, last fix wasn't correct... this one is betterDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-02fix a typo in prev commitDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-02Update documentation generator so that it sucks lessDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-20do not store 1st two bytes of compressed help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-05add .gitignore filesMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-19another stab at fixing out-of-tree buildDenis Vlasenko
2009-04-19hopefully fix out-of-tree build broken by 26139Denis Vlasenko
2009-04-17build system: remove some unnecessary rebuildsDenis Vlasenko
2008-12-07Fix forgotten license commentsDenis Vlasenko
2008-09-25whitespace fixesDenis Vlasenko
2008-08-09fix byte-swapping of compressed help on big-endian machinesDenis Vlasenko
2008-07-05*: rename ATTRIBUTE_XXX to just XXX.Denis Vlasenko
2008-07-02uname,individual: fix improper printf usageDenis Vlasenko
uname,awk: small code shrink function old new delta uname_main 175 166 -9 nvalloc 167 157 -10 evaluate 6381 6370 -11 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-30) Total: -30 bytes
2008-06-13udhcpc: kill undocumented -W, it was a no-op.Denis Vlasenko
fix option parsing in the case some CONFIG_x are off. disable -b on NOMMU, make backgrounding work correctly (if a bit differently from MMU case). Previously, it wasn't working at all. stop using global data for flags in main(), opt bitfield works as well. function old new delta cryptpw_main 177 153 -24 packed_usage 24478 24452 -26 client_background 26 - -26 udhcpc_main 2462 2372 -90 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 0/3 up/down: 0/-166) Total: -166 bytes
2008-05-19- use STD*_FILENO some more. No object-code changesBernhard Reutner-Fischer
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