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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>
2018-12-28config: update size informationDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-04modutils: make them NOEXEC except depmodDenys 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>
2017-07-18Update menuconfig items with approximate applet sizesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-23Make RMMOD=y by defaultDenys Vlasenko
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>
2016-11-23Convert all modutils/* applets to "new style" applet definitionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-24rmmod: fix bad error messageDenys Vlasenko
Before: ># busybox_old rmmod gtrhfhdfghdf rmmod: can't unload 'gtrhfhdfghdf': unknown symbol in module, or unknown parameter After: ># busybox rmmod gtrhfhdfghdf rmmod: can't unload module 'gtrhfhdfghdf': No such file or directory function old new delta modprobe_main 726 721 -5 do_modprobe 599 590 -9 rmmod_main 187 169 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-32) Total: -32 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-14whitespace cleanup. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-06-05*: remove "Options:" string from help textsDenys Vlasenko
function old new delta packed_usage 28706 28623 -83 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-01-18mass removal of underscores from _BB_DIR_foo and _BB_SUID_fooDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-29whitespace cleanupDenys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-10-16modutils/*: move help bits into corresponding .c filesDenys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-10-15modutils/*: move applet bits into corresponding *.c filesDenys 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>
2009-04-13rmmod: fix bug 263Denis Vlasenko
"modutils/rmmod can't remove modules with dash in name on 2.4 kernels" function old new delta rmmod_main 187 220 +33
2008-09-13modutils/*: rewrite by Timo Teras <timo.teras AT iki.fi>Denis Vlasenko
- a lot faster (linear algorithmic complexity, smaller memory foot print) - a lot smaller (the old code was overly complicated) - loading of aliases is now module-init-tools compliant - blacklisting is done correctly (-b option added) - module argument quoting done right - depmod now correctly generates modules.symbols and modules.alias add/remove: 16/21 grow/shrink: 4/6 up/down: 6930/-9316 Total: -2386 bytes text data bss dec hex filename 806039 592 6680 813311 c68ff busybox_old 803498 592 6676 810766 c5f0e busybox_unstripped
2008-07-29hush: add #defines to switch off break/continue if loops are not supportedDenis Vlasenko
*: remove a few inline keywords no code changes
2008-05-27- use (uC)libc functions. Saves a dozen bytes.Bernhard Reutner-Fischer
2007-10-11add -fvisibility=hidden to CC flags, mark XXX_main functionsDenis Vlasenko
EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
2007-10-01'simple' error message functions by Loic Grenie <loic.grenie@gmail.com>.Denis Vlasenko
263 bytes saved.
2007-08-18don't pass argc in getopt32, it's superfluousDenis Vlasenko
(add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes text data bss dec hex filename 773469 1058 11092 785619 bfcd3 busybox_old 772644 1058 11092 784794 bf99a busybox_unstripped
2007-08-13s/#ifdef CONFIG_/#if ENABLE_/gDenis Vlasenko
2007-06-30introduce and use bb_basename()Denis Vlasenko
function old new delta bb_basename - 26 +26 sv_main 1226 1225 -1 passwd_main 1985 1983 -2 showdirs 482 478 -4 sendCgi 1811 1807 -4 make_device 1354 1350 -4 handleIncoming 2443 2439 -4 func_name 82 78 -4 service_name 2292 2285 -7 main 909 901 -8 cmp_main 555 547 -8 test_main 434 422 -12 act 228 216 -12 find_pair 180 164 -16 rmmod_main 298 280 -18 find_pid_by_name 156 134 -22 modprobe_main 1606 1576 -30 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/16 up/down: 26/-156) Total: -130 bytes text data bss dec hex filename 734933 3028 14400 752361 b7ae9 busybox_old 734801 3028 14400 752229 b7a65 busybox_unstripped
2007-06-04Audit bb_common_bufsiz usage, add script which looks for misuse.Denis Vlasenko
tr: stop using globals needlessly. code: -103 bytes
2007-05-26usage.c: remove reference to busybox.hDenis Vlasenko
*: s/include "busybox.h"/include "libbb.h"
2007-04-12style fixes. No code changesDenis Vlasenko
2007-02-03suppress warnings about easch <applet>_main() havingDenis Vlasenko
no preceding prototype
2006-11-27style cleanup: return(a) -> return a, part 1Denis Vlasenko
2006-10-03getopt_ulflags -> getopt32.Denis Vlasenko
It is impossible to formulate sane ABI based on size of ulong because it can be 32-bit or 64-bit. Basically it means that you cannot portably use more that 32 option chars in one call anyway... Make it explicit.
2006-09-17whitespace cleanupDenis Vlasenko
2006-08-28No real need for my_query_module() and this eliminates some type-punnedRob Landley
pointer warning on certain gcc versions (and saves 38 bytes).
2006-06-03- move #include busybox.h to the very top so we pull in the configBernhard Reutner-Fischer
and eventual platform specific includes in early. - remove two supposedly superfluous newlines from ...error_msg() in modprobe and use shorter boilerplate while at it.
2006-05-19- single KERNEL_VERSION(a,b,c) macro in platform.hBernhard Reutner-Fischer
- rename get_kernel_revision() to get_linux_version_code from Robert P. J. Day
2006-03-06Robert P. Day removed 8 gazillion occurrences of "extern" on functionRob Landley
definitions. (That should only be on prototypes.)
2006-01-25just whitespaceTim Riker
2005-12-11Patch from Yann E. Morin to make rmmod report failure properly.Rob Landley
2005-11-28use libbb/get_kernel_revision(), reduce stack usage, add loses -w -f option ↵"Vladimir N. Oleynik"
for getopt, convert to bb_getopt_ulflags(), reduce memory usage - xmalloc to bb_common_bufsiz1, size reduce over 200 bytes
2005-11-27Patch from Cristian Ionescu-Idbohrn to deal with _ vs - better.Rob Landley
2004-07-20Patch from Mike Snitzer <snitzer@gmail.com>:Robert Griebl
Please see the attached patch for the following crash with busybox' 2.6 rmmod support
2004-07-20Deal with the fact that 2.6.x kernels replace any '-'s in theEric Andersen
module name with a '_'. -Erik
2004-07-13Fixup some cases of "QM_MODULES: not implemented" for bothEric Andersen
lsmod and rmmod when using 2.6.x module support -Erik
2004-03-19As noted in a patch from Kendrick Hamilton, rmmod was onlyEric Andersen
half way converted, and still used the old delete_module(), call rather than a syscall, in one spot.
2004-03-15Remove trailing whitespace. Update copyright to include 2004.Eric Andersen
2003-12-24re-indentEric Andersen
2003-12-11Update modutils with 2.6 module supportEric Andersen
2003-07-14Update a bunch of docs. Run a script to update my email addr.Eric Andersen
2003-03-19Major coreutils update.Manuel Novoa III
2002-12-14rmmod -a removed modules recursivelyTim Riker
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