e1b1b79269
This avoids pulling in gmtime's static buffer:
function old new delta
svlogd_main 1401 1412 +11
send_headers 668 678 +10
gmtime 21 - -21
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 2/0 up/down: 21/-21) Total: 0 bytes
text data bss dec hex filename
920221 555 5804 926580 e2374 busybox_old
920221 555 5740 926516 e2334 busybox_unstripped
^^^^
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* prioritynames[] and facilitynames[]
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*
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* Copyright (C) 2008 by Denys Vlasenko <vda.linux@gmail.com>
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*
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* Licensed under GPLv2, see file LICENSE in this source tree.
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*/
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#include "libbb.h"
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#include "common_bufsiz.h"
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#define SYSLOG_NAMES
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#define SYSLOG_NAMES_CONST
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#include <syslog.h>
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#if 0
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/* For the record: with SYSLOG_NAMES <syslog.h> defines
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* (not declares) the following:
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*/
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typedef struct _code {
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/*const*/ char *c_name;
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int c_val;
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} CODE;
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/*const*/ CODE prioritynames[] = {
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{ "alert", LOG_ALERT },
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...
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{ NULL, -1 }
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};
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/* same for facilitynames[] */
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/* This MUST occur only once per entire executable,
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* therefore we can't just do it in syslogd.c and logger.c -
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* there will be two copies of it.
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*
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* We cannot even do it in separate file and then just reference
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* prioritynames[] from syslogd.c and logger.c - bare <syslog.h>
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* will not emit extern decls for prioritynames[]! Attempts to
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* emit "matching" struct _code declaration defeat the whole purpose
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* of <syslog.h>.
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*
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* For now, syslogd.c and logger.c are simply compiled into
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* one object file.
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*/
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#endif
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/* musl decided to be funny and it implements these as giant defines
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* of the form: ((CODE *)(const CODE []){ ... })
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* Which works, but causes _every_ function using them
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* to have a copy on stack (at least with gcc-6.3.0).
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* If we reference them just once, this saves 150 bytes.
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* The pointers themselves are optimized out
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* (no size change on uclibc).
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*/
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static const CODE *const bb_prioritynames = prioritynames;
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static const CODE *const bb_facilitynames = facilitynames;
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#if ENABLE_SYSLOGD
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#include "syslogd.c"
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#endif
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#if ENABLE_LOGGER
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#include "logger.c"
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#endif
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