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* libbb: reduce the overhead of single parameter bb_error_msg() callsGravatar James Byrne2019-07-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: deindent all help textsGravatar Denys Vlasenko2017-07-211-1/+1
| | | | | | Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Update remaining menuconfig items with approximate applet sizesGravatar Denys Vlasenko2017-07-191-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Convert all selinux/* applets to "new style" applet definitionsGravatar Denys Vlasenko2016-11-231-0/+10
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* move remaining help text from include/usage.src.hGravatar Pere Orga2011-04-111-0/+3
| | | | | Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: make GNU licensing statement forms more regularGravatar Denys 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>
* Fix forgotten license commentsGravatar Denis Vlasenko2008-12-071-0/+1
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* *: rename ATTRIBUTE_XXX to just XXX.Gravatar Denis Vlasenko2008-07-051-1/+1
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* selinux/*: -Wunused-parameter fixesGravatar Denis Vlasenko2008-03-171-1/+1
| | | | | | | | | | runsv: make it NOMMU-capable function old new delta startservice 291 313 +22 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 22/0) Total: 22 bytes
* add -fvisibility=hidden to CC flags, mark XXX_main functionsGravatar Denis Vlasenko2007-10-111-1/+1
| | | | | EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
* usage.c: remove reference to busybox.hGravatar Denis Vlasenko2007-05-261-1/+1
| | | | | *: s/include "busybox.h"/include "libbb.h"
* selinux fixes by KaiGai Kohei <kaigai@kaigai.gr.jp>Gravatar Denis Vlasenko2007-02-071-0/+1
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* new applets: selinux utils by KaiGai Kohei <kaigai@kaigai.gr.jp>Gravatar Denis Vlasenko2007-02-061-0/+33