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syslogd,logger: code shrink for musl

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function                                             old     new   delta
syslogd_main                                        1252    1910    +658
logger_main                                          277     393    +116
timestamp_and_log                                    434     542    +108
static.__compound_literal                              -     104    +104
parse_fac_prio_20                                    137       -    -137
pencode                                              167       -    -167
parse_syslogdcfg                                     715       -    -715
------------------------------------------------------------------------------
(add/remove: 1/3 grow/shrink: 3/0 up/down: 986/-1019)         Total: -33 bytes
   text	   data	    bss	    dec	    hex	filename
 912506	    563	   6132	 919201	  e06a1	busybox_old
 912364	    563	   6132	 919059	  e0613	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-08-16 15:05:36 +02:00
parent dce39c9894
commit cf686ae3b4
3 changed files with 17 additions and 6 deletions
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11
sysklogd/syslogd_and_logger.c
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@@ -43,6 +43,17 @@ typedef struct _code {
*/
#endif
/* musl decided to be funny and it implements these as giant defines
* of the form: ((CODE *)(const CODE []){ ... })
* Which works, but causes _every_ function using them
* to have a copy on stack (at least with gcc-6.3.0).
* If we reference them just once, this saves 150 bytes.
* The pointers themselves are optimized out
* (no size change on uclibc).
*/
static const CODE *const bb_prioritynames = prioritynames;
static const CODE *const bb_facilitynames = facilitynames;
#if ENABLE_SYSLOGD
#include "syslogd.c"
#endif