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2020-08-13build system: drop PLATFORM_LINUXRon Yorston
PLATFORM_LINUX is a hidden configuration option which is disabled by default and enabled at over a hundred locations for features that are deemed to be Linux specific. The only effect of PLATFORM_LINUX is to control compilation of libbb/match_fstype.c. This file is only needed by mount and umount. Remove all references to PLATFORM_LINUX and compile match_fstype.c if mount or umount is enabled. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-10-14config: PID_FILE_PATH required for FEATURE_CROND_SPECIAL_TIMESJames Byrne
When crond is built with FEATURE_CROND_SPECIAL_TIMES enabled, it creates a file called 'crond.reboot' at CONFIG_PID_FILE_PATH, but if FEATURE_PIDFILE is disabled, this will be an empty string and the file will be created in the root directory, which is undesirable. This commit makes PID_FILE_PATH depend on FEATURE_CROND_SPECIAL_TIMES as well as FEATURE_PIDFILE so that you get sensible behaviour in crond when FEATURE_PIDFILE is switched off. Signed-off-by: James Byrne <james.byrne@origamienergy.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-07-02libbb: reduce the overhead of single parameter bb_error_msg() callsJames Byrne
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>
2019-04-30Optionally re-introduce bb_info_msg()James Byrne
Between Busybox 1.24.2 and 1.25.0 the bb_info_msg() function was eliminated and calls to it changed to be bb_error_msg(). The downside of this is that daemons now log all messages to syslog at the LOG_ERR level which makes it hard to filter errors from informational messages. This change optionally re-introduces bb_info_msg(), controlled by a new option FEATURE_SYSLOG_INFO, restores all the calls to bb_info_msg() that were removed (only in applets that set logmode to LOGMODE_SYSLOG or LOGMODE_BOTH), and also changes informational messages in ifplugd and ntpd. The code size change of this is as follows (using 'defconfig' on x86_64 with gcc 7.3.0-27ubuntu1~18.04) function old new delta bb_info_msg - 182 +182 bb_vinfo_msg - 27 +27 static.log7 194 198 +4 log8 190 191 +1 log5 190 191 +1 crondlog 45 - -45 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 3/0 up/down: 215/-45) Total: 170 bytes If you don't care about everything being logged at LOG_ERR level then when FEATURE_SYSLOG_INFO is disabled Busybox actually gets smaller: function old new delta static.log7 194 200 +6 log8 190 193 +3 log5 190 193 +3 syslog_level 1 - -1 bb_verror_msg 583 581 -2 crondlog 45 - -45 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 3/1 up/down: 12/-48) Total: -36 bytes Signed-off-by: James Byrne <james.byrne@origamienergy.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-06build system: fix compiler warningsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-11-18busybox: add '--show SCRIPT' option to display scriptsRon Yorston
Add an option to allow the content of embedded scripts to be displayed. This includes applet scripts, custom scripts and the .profile script. function old new delta busybox_main 624 701 +77 find_script_by_name - 24 +24 scripted_main 41 35 -6 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/1 up/down: 101/-6) Total: 95 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-06restore documentation on the build config languageKartik Agaram
Kconfig-language.txt was deleted in commit 4fa499a17b52b back in 2006. Move to docs/ as suggested by Xabier Oneca: http://lists.busybox.net/pipermail/busybox/2014-May/080914.html Also update references to it everywhere. Signed-off-by: Kartik Agaram <akkartik@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-06i386: make stack size optimization selectable, and allow i486 insns (bswap)Denys Vlasenko
It's hard to imagine someone still using non-bswap equipped CPU function old new delta xmalloc_optname_optval 888 879 -9 write_leases 214 205 -9 write32 36 27 -9 update_status 612 603 -9 udhcpd_main 1468 1459 -9 udhcpc_main 2708 2699 -9 udhcp_run_script 804 795 -9 sha256_process_block64 423 414 -9 sha1_process_block64 337 328 -9 sha1_end 80 71 -9 send_ACK 161 152 -9 select_lease_time 64 55 -9 rpm_getint 118 109 -9 readprofile_main 1719 1710 -9 read32 33 24 -9 rdate_main 236 227 -9 machtime 39 30 -9 inet_addr_match 103 94 -9 get_prefix 344 335 -9 f_write32 31 22 -9 f_read32 31 22 -9 dumpleases_main 620 611 -9 KeyExpansion 197 188 -9 udhcp_str2optset 536 518 -18 read_config 222 204 -18 lfp_to_d 55 37 -18 ipaddr_modify 1226 1208 -18 dnsd_main 1278 1260 -18 des_crypt 1344 1326 -18 d_to_lfp 106 88 -18 bb_bswap_64 29 11 -18 INET_setroute 827 809 -18 read_leases 330 309 -21 zcip_main 1256 1229 -27 send_offer 476 449 -27 ipcalc_main 534 507 -27 handle_incoming_and_exit 2821 2794 -27 fmt_time_bernstein_25 131 104 -27 common_traceroute_main 3804 3768 -36 rpm_gettags 451 397 -54 parse_args 1412 1358 -54 volume_id_probe_hfs_hfsplus 627 564 -63 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/42 up/down: 0/-732) Total: -732 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-18klibc-utils: new applets: resume, nuke, minipsDenys Vlasenko
minips is a pure alias to ps, just in case someone needs 100% klibc-utils compat. nuke is a primitive version of "rm -rf" without options and error checks. ~30 bytes. resume is a tool for initramfs which resumes from a given block device. function old new delta resume_main - 582 +582 packed_usage 31640 31712 +72 nuke_main - 28 +28 xstrtoull - 24 +24 applet_names 2646 2665 +19 applet_main 1532 1544 +12 applet_suid 96 97 +1 applet_install_loc 192 193 +1 applet_flags 96 97 +1 ------------------------------------------------------------------------------ (add/remove: 5/0 grow/shrink: 6/0 up/down: 740/0) Total: 740 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-14build system: remove unused CONFIG_FEATURE_HAVE_RPCDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-03config: FEDORA_COMPAT option (so far only tweaks uname)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-27config: trim/improve item names and help texts.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-21config: deindent all help textsDenys Vlasenko
Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15config: reorder items in "Busybox Settings", improve helpDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15config: merge "Busybox Settings" and "Busybox Library Tuning" into one menuDenys Vlasenko
Tweak a few help texts while at it Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15config: fix tab-damaged help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15build system: FEATURE_LIBBUSYBOX_STATIC - try to pull libc/libm into libbusyboxDenys Vlasenko
It variously fails with different toolchains I tried... Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-11Move FEATURE_AUTOWIDTH config option to two applets which use itDenys Vlasenko
No code changes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-11Move FEATURE_USE_TERMIOS config option to two applets which use itDenys Vlasenko
No code changes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-10Big cleanup in config help and descriptionDenys Vlasenko
Redundant help texts (one which only repeats the description) are deleted. Descriptions and help texts are trimmed. Some config options are moved, even across menus. No config option _names_ are changed. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-08build system: no longer prompt for PLATFORM_LINUX optionKang-Che Sung
With the new "select PLATFORM_LINUX" mechanism (commit e3b1a1fd28558f7a1b3c0ec33313bedb675be8a1), the PLATFORM_LINUX option alone no longer has any purpose of changing program behavior or affecting compiled code. So there is no longer need to prompt user of this config question. Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-24Move FEATURE_BUFFERS_USE_foo options to library tuningDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-24Move locale, unicode, and "use sendfile?" options to library tuningDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-24Collapse three levers of menuconfig to two levels.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-05-31Make busybox an optional appletDenys Vlasenko
If it's disabled, code shrinks by about 900 bytes: function old new delta usr_bin 10 - -10 usr_sbin 11 - -11 install_dir 20 - -20 applet_install_loc 184 - -184 run_applet_and_exit 686 21 -665 ------------------------------------------------------------------------------ (add/remove: 0/4 grow/shrink: 0/1 up/down: 0/-890) Total: -890 bytes text data bss dec hex filename 911327 493 7336 919156 e0674 busybox_old 909848 493 7336 917677 e00ad busybox_unstripped but busybox executable by itself does not say anything useful: $ busybox busybox: applet not found Based on the patch by Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-02-12build: add a sanitizer debug optionMike Frysinger
Building & running with ASAN is super helpful, so add a dedicated config knob for it. This way people don't have to guess at the right compiler settings in order to get a good build. We can just tell people to enable this one option. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2015-10-12build system: remove special-casing for extra libsDenys Vlasenko
It is not reliable (tried on three systems, multiple problems). 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>
2014-12-10Config: select PLATFORM_LINUX if using sendfile()Bartosz Golaszewski
Man entry for sendfile: Not specified in POSIX.1-2001, or other standards. Other UNIX systems implement sendfile() with different semantics and prototypes. It should not be used in portable programs. Select PLATFORM_LINUX if enabling FEATURE_USE_SENDFILE. Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-11-27libbb: use sendfile() to copy data between file descriptorsBartosz Golaszewski
Busybox already uses sendfile in httpd. This patch proposes to use it globally to copy data between file descriptors. It speeds up the copying on slow systems a lot - below are the times needed to copy a 450Mb file with and without this option enabled on a BeagleBone Black: sendfile: user 0m0.000s sys 0m8.170s read/write 4k: user 0m0.470s sys 0m16.300s function old new delta bb_full_fd_action 394 474 +80 Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-22unit-tests: implement the unit-testing frameworkBartosz Golaszewski
This set of patches adds a simple unit-testing framework to Busybox unit-tests: add some helper macros for unit-test framework implementation unit-tests: implement the unit-testing framework unit-tests: add basic documentation on writing the unit test cases unit-tests: modify the Makefile 'test' target to run unit-tests too unit-tests: add two example test cases unit-tests: modify the existing strrstr test code to use the unit-test framework Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-25build system: remove a dead link from Config help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-19Kbuild: move CONFIG_PAM to general configurationBartosz Golaszewski
Currently CONFIG_PAM depends on CONFIG_LOGIN, but is used by the httpd applet too. This patch moves said option to general configuration, thus allowing to compile httpd with PAM support independently from login. Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-05unicode: check $LC_CTYPE too to detect Unicode modeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-17fix a typo in config help text. Closes 5714Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-12-19CONFIG_PID_FILE_PATH: new configuration option for pidfile pathsAnthony G. Basile
We set a default path for the directory where pidfiles are create when FEATURE_PIDFILE is selected. The default has no effect on applets which must specify a pidfile path on the command line to run, and it can be overridden by applets which optionally allow the user to specify the pidfile path. We also add pidfile write/remove support for klogd, ntpd and watchdog. For syslogd, we add a missing remove_pidfile() for better cleanup on daemon exit. Signed-off-by: Anthony G. Basile <blueness@gentoo.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-07Add SYSROOT, EXTRA_{LDFLAGS,LDLIBS} config opts; sample Android NDK configRob Walker
Signed-off-by: Rob Walker <rwalker@rwalker.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-09Config: clarify {SHOW,VERBOSE,COMPRESS}_USAGEBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-06-18parse_config: make test applet easier to enable; fix its codeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-05-16busybox.conf: USER.GROUP is _optional_Denys Vlasenko
function old new delta main 785 809 +24 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-05-16main: make busybox.conf mode handling less obscureDenys Vlasenko
function old new delta static.mode_mask - 20 +20 main 782 785 +3 static.mode_chars 15 13 -2 run_applet_no_and_exit 450 441 -9 mode_mask 24 - -24 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 1/2 up/down: 41/-53) Total: -12 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-05-14tweak config help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-04-16make FDISK_SUPPORT_LARGE_DISKS redundant when LFS=yDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-26Replace "depends on PLATFORM_LINUX" with "select PLATFORM_LINUX"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-15Add the help text for 'position independent executable' code buildGilles Espinasse
Signed-off-by: Gilles Espinasse <g.esp@free.fr> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-10remve erroneous dependensies on INSTALLERDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-01-25move utmp.h include to libbb.hDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-01-18disable automatic selection of FEATURE_SUID; improve its help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-12-05tweak INSTALL_NO_USR help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-12tweaks to build system, mainly making menuconfig text and order clearerDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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