busybox/include
James Byrne 253c4e787a Optionally re-introduce bb_info_msg()
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>
2019-04-30 10:51:27 +02:00
..
.gitignore ash: allow shell scripts to be embedded in the binary 2018-11-01 10:15:13 +01:00
applet_metadata.h
applets.h.sh modprobe-small: make applets individually selectable 2016-12-23 15:13:16 +01:00
applets.src.h Tweaks to build process for embedded scripts 2018-11-27 10:38:10 +01:00
ar.h
bb_archive.h libarchive: add a function to unpack embedded data 2018-11-02 14:14:51 +01:00
bb_e2fs_defs.h Whitespace fixes 2013-07-30 11:52:58 +02:00
busybox.h config: disentangle PREFER_APPLETS from SH_STANDALONE and SH_NOFORK 2016-07-22 18:48:38 +02:00
dump.h
fix_u32.h
grp_.h libpwdgrp: use FAST_FUNC to make "matching ABI" optimization more likely to succeed 2015-01-02 22:31:07 +01:00
inet_common.h
libbb.h Optionally re-introduce bb_info_msg() 2019-04-30 10:51:27 +02:00
liblzo_interface.h lzop: code shrink 2018-02-01 01:41:31 +01:00
platform.h tls: code shrink 2018-11-23 18:48:20 +01:00
pwd_.h libpwdgrp: use getpwent() instead of getpwent_r() 2015-02-07 21:21:02 +01:00
rtc_.h
shadow_.h libpwdgrp: use FAST_FUNC to make "matching ABI" optimization more likely to succeed 2015-01-02 22:31:07 +01:00
unicode.h
usage.src.h Tweaks to build process for embedded scripts 2018-11-27 10:38:10 +01:00
volume_id.h blkid: if parameters are given, do not scan /dev 2012-03-03 15:09:07 +01:00
xatonum.h udhcp: finish support of classless static routes 2011-12-16 17:05:52 +01:00
xregex.h