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2017-01-09Allow FAST_FUNC to be overridden at build timeKang-Che Sung
Busybox uses FAST_FUNC macro to tweak with IA-32 calling conventions in order to make the function call slightly smaller or slightly faster. However, when I experiment with GCC's LTO (Link Time Optimization), I discovered that FAST_FUNC could hinder LTO's optimization so that the resulting executable become a few bytes larger (than what is compiled without FAST_FUNC). This change allows to specify e.g. CONFIG_EXTRA_CFLAGS="-DFAST_FUNC= -flto" and compile with LTO without a source code hack. Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-23modprobe-small: make applets individually selectableDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-22Tweak some config defaults; fix MODPROBE_SMALL ordering in "make config"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-12df: implement -B n<suff> and -B <suff> formats of -B optionDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-12suppress glibc "use sysmacros.h for major" warningDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-09selinux: drop deprecated headersMike Frysinger
The selinux guys want you to get class values at runtime by converting textual names into constants. Drop the deprecated headers and switch to the new format. This API has been around for years, so there shouldn't be an issue with backwards compatibility. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2016-12-08randomconfig fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-24lineedit: fix handling of repeating Alt-b, Alt-f, Alt-d, Alt-BackspaceRostislav Skudnov
These key combinations should repeat correctly when the keys are pressed and held. Before this change, they do this erratically - many repeats are "eaten" because they are treated as unrecognized ESC seqs: ESC 0x7f is treated by Alt+baskspace, but ESC 0x7f ESC 0x7f ESC 0x7f is unrecognized. Escape sequences corresponding to these key combinations are moved from read_line_input to lineedit_read_key. Also, these key sequences are now enabled regardless of whether FEATURE_EDITING_VI is set, since Vim does not actually support these key combinations, but they are present in readline library. function old new delta static.esccmds 93 103 +10 read_line_input 3737 3687 -50 Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Remove outdated commentsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all udhcp applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all selinux/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23test: make [ and [[ forms individually selectableDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Remove remnants of disabled "length" appletDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all coreutils/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all util-linux/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all console-tools/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all mailutils/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23tc: consolidate its disabled bitsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all networking/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23Convert all procps/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-22Convert all miscutils/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-17applets.h.sh: a script to check applet names against config optionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-16Make mkfs.vfat and mkdosfs individually selectableDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-16Make mke2fs and mkfs.ext2 individually selectableDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-14Make ifup and ifdown individually selectable.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-14Make swapon and swapoff individually selectable.Denys Vlasenko
For example, without swapoff, code shrinks by 277 bytes. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-13dnsdomainname: split it from "hostname", make it independently selectableDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-03su: expand help; simplify passing of -c CMD to run_shell()Denys Vlasenko
Also, added a comment about bug 9401 (TIOCSTI input injection). function old new delta packed_usage 30909 30932 +23 su_main 470 487 +17 sulogin_main 260 258 -2 run_applet_and_exit 681 678 -3 run_shell 166 126 -40 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-09-18libbb: do not use fflush_unlocked, musl does not like fflush_unlocked(NULL)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-29sha3: fix to conform to final SHA3 padding standard, add -a BITS optionDenys Vlasenko
function old new delta hash_file 331 396 +65 md5_sha1_sum_main 485 538 +53 packed_usage 30423 30464 +41 sha3_begin 17 31 +14 sha3_hash 101 110 +9 sha3_end 41 49 +8 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-22hush: fix "redirects can close script fd" bugDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-22config: disentangle PREFER_APPLETS from SH_STANDALONE and SH_NOFORKDenys Vlasenko
On user request. I thought enabling/disabling them all together is more consistent. Evidently, some people do want them to be separately selectable. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-06-20libarchive: fix xmalloc_open_zipped_read_close() on NOMMUDenys Vlasenko
The somewhat new "unpack in memory" code was broken for xmalloc_open_zipped_read_close() on NOMMU: we seek back over signature, but then expect it to be already consumed. Stop seeking back in this case. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-06-19libbb: move common code into run_applet_and_exitRon Yorston
Both calls to run_applet_and_exit are followed by the same code to print an error message and return status 127. Remove this duplication and make run_applet_and_exit static. function old new delta run_applet_and_exit 675 667 -8 main 119 92 -27 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-35) Total: -35 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-05-27cp: add -u/--update and --remove-destinationDenys Vlasenko
Based on the patch by wdlkmpx@gmail.com function old new delta copy_file 1546 1644 +98 add_partition 1270 1362 +92 ask_and_unlink 95 133 +38 do_iproute 132 157 +25 decode_one_format 710 715 +5 cp_main 369 374 +5 ubirename_main 198 202 +4 read_package_field 232 230 -2 bb_make_directory 421 412 -9 packed_usage 30505 30476 -29 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 7/3 up/down: 267/-40) Total: 227 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-24generate_BUFSIZ.sh: yet another tweakDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for itDenys Vlasenko
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>
2016-04-03whitespace and namespace cleanupsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-03ubirmvol: Implement -N switch for ubirmvolSven Eisenberg
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 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 1/2 up/down: 173/-192) Total: -19 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-02nsenter,unshare: share common code; fix a bug of not closing all fdsDenys Vlasenko
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>
2016-04-01libbb: two new functions: wait_for_exitstatus(pid), xfchdir(fd)Denys Vlasenko
Bartosz Golaszewski proposed xfchdir() Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30udhcp: get rid of bb_info_msg()Denys Vlasenko
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>
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>
2016-03-14fixes for problems found by bionic buildDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-02-01Fix compiling with musl's utmp stubsKylie McClain
This patch fixes compiling busybox with FEATURE_UTMP and _WTMP enabled. musl, while not really support utmp/wtmp, provides stub functions, as well as variables such as _PATH_UTMP, so that programs using utmp or wtmp can still compile fine. My reasoning for this patch is that on Exherbo, I'm currently trying to get us to be able to use the same busybox config file for both glibc and musl systems, using utmp/wtmp on systems that support it, and using the stubs on musl without needing two different configs. As of latest musl git, it provides all utmp functions needed; 1.1.12 doesn't, but I sent a patch to Rich to add the utmp{,x}name functions expected to exist, which was merged into musl upstream. Signed-off-by: Kylie McClain <somasissounds@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-12-17include/platform.h: Remove extra #endif introduced in 6df9612.Ari Sundholm
It causes the compilation to fail. Signed-off-by: Ari Sundholm <ari@tuxera.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2015-12-17Resolve linker issues with Android API 21 (dprintf, tcdrain)Chris Renshaw
Signed-off-by: Chris Renshaw <osm0sis@outlook.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-23libbb: factor out code which queries screen widthDenys Vlasenko
function old new delta get_terminal_width - 17 +17 stty_main 1196 1197 +1 pstree_main 321 319 -2 ls_main 735 731 -4 watch_main 232 225 -7 bb_progress_update 714 706 -8 ps_main 555 543 -12 run_applet_and_exit 708 695 -13 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/6 up/down: 18/-46) Total: -28 byte Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-22remove systemd supportDenys Vlasenko
systemd people are not willing to play nice with the rest of the world. Therefore there is no reason for the rest of the world to cooperate with them. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-22tar: add support for --strip-components=NDenys Vlasenko
function old new delta data_extract_all 882 995 +113 tar_longopts 290 309 +19 tar_main 938 942 +4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 136/0) Total: 136 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>