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* libbb: reduce the overhead of single parameter bb_error_msg() callsJames Byrne2019-07-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* config: update size informationDenys Vlasenko2018-12-281-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* config: deindent all help textsDenys Vlasenko2017-07-211-2/+2
| | | | | | Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Update menuconfig items with approximate applet sizesDenys Vlasenko2017-07-181-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Spelling fixes in comments, documentation, tests and examplesDenys Vlasenko2017-04-171-1/+1
| | | | | | By klemens <ka7@github.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Convert all miscutils/* applets to "new style" applet definitionsDenys Vlasenko2016-11-221-0/+4
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Split miscutils/Config.src items into miscutils/*.c filesDenys Vlasenko2016-11-221-0/+6
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: hopefully all setup_common_bufsiz() are in placeDenys Vlasenko2016-04-211-3/+3
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for itDenys Vlasenko2016-04-211-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* inotifyd: swap meaning of 'y' and 'm' events in help text. Closes 8726Denys Vlasenko2016-03-061-2/+2
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* inotify: if PROG is -, print events to stdoutFlemming Madsen2011-10-101-6/+15
| | | | | | | | | function old new delta inotifyd_main 516 589 +73 packed_usage 28698 28709 +11 Signed-off-by: Flemming Madsen <busybox@themadsens.dk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* move remaining help text from include/usage.src.hPere Orga2011-04-111-0/+27
| | | | | Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: make GNU licensing statement forms more regularDenys Vlasenko2010-08-161-1/+1
| | | | | | | 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>
* *: code shrink and better "died from signal" reporting from wait4pidDenys Vlasenko2010-03-181-1/+1
| | | | | | | | | | | | | | function old new delta parse 964 967 +3 udhcp_run_script 670 665 -5 singlemount 911 906 -5 mount_it_now 360 355 -5 inotifyd_main 521 516 -5 xspawn 21 - -21 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/4 up/down: 3/-41) Total: -38 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* documentation and typo fixes. By Dan Fandrich (dan AT coneharvesters.com)Denys Vlasenko2009-09-061-2/+2
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* inotifyd: save resourses by closing unused inotify descriptorsDenis Vlasenko2008-11-291-4/+3
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* inotifyd: exit if x event happened for all filesDenis Vlasenko2008-11-201-13/+29
| | | | | | | | | | | | | fix FIONREAD parameter type fix default mask code shrink help text function old new delta inotifyd_main 497 506 +9 packed_usage 25446 25431 -15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 9/-15) Total: -6 bytes
* inotify: add x, o, and u eventsDenis Vlasenko2008-11-171-18/+27
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* inotifyd: fix "inotifyd with no params" caseDenis Vlasenko2008-11-141-1/+1
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* inotify: document waiting behaviorDenis Vlasenko2008-11-141-1/+1
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* inotify: fix buffer overflow and "unreaped zombies" problemDenis Vlasenko2008-11-141-22/+29
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* - use sys/inotify.hBernhard Reutner-Fischer2008-10-211-1/+1
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* runsvd: shrink by VladimirDenis Vlasenko2008-09-111-9/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *: use unified trivial signal handler function old new delta record_signo - 10 +10 process_stdin 433 443 +10 bbunpack 383 391 +8 wc_main 598 605 +7 conescape 293 296 +3 nmeter_main 670 672 +2 fallbackSort 1717 1719 +2 bb_got_signal - 1 +1 microcom_main 713 712 -1 signalled 2 - -2 pack_gzip 1661 1659 -2 evalvar 1376 1374 -2 compare_keys 737 735 -2 parse_command 1460 1456 -4 expand 1748 1744 -4 s_term 37 29 -8 s_hangup 8 - -8 fgotsig 10 - -10 find_pair 187 169 -18 signal_handler 190 170 -20 runsvdir_main 1701 1583 -118 ------------------------------------------------------------------------------ (add/remove: 2/3 grow/shrink: 6/10 up/down: 43/-199) Total: -156 bytes
* *: rename ATTRIBUTE_XXX to just XXX.Denis Vlasenko2008-07-051-1/+1
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* inotify: new applet by Vladimir Dronnikov <dronnikov AT gmail.com>Denis Vlasenko2008-05-241-0/+152
function old new delta inotifyd_main - 453 +453 packed_usage 24246 24450 +204 inotify_add_watch - 47 +47 inotify_init - 29 +29 mask_names - 13 +13 signal_handler 130 140 +10 applet_names 1859 1868 +9 applet_main 1132 1136 +4 applet_nameofs 566 568 +2 signalled 1 2 +1
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