diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-16 15:05:36 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-16 15:05:36 +0200 |
| commit | cf686ae3b401c68b64ff997b68b7972881dbf80e (patch) | |
| tree | 1783ea92906d002bded11244d2d1b692b25b2319 /sysklogd | |
| parent | dce39c98944ec6570dee5afc1e2edb16f87c1546 (diff) | |
| download | busybox-cf686ae3b401c68b64ff997b68b7972881dbf80e.tar.gz | |
syslogd,logger: code shrink for musl
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>
Diffstat (limited to 'sysklogd')
| -rw-r--r-- | sysklogd/logger.c | 4 | ||||
| -rw-r--r-- | sysklogd/syslogd.c | 8 | ||||
| -rw-r--r-- | sysklogd/syslogd_and_logger.c | 11 |
3 files changed, 17 insertions, 6 deletions
diff --git a/sysklogd/logger.c b/sysklogd/logger.c index 359ac3acf..1e0384c09 100644 --- a/sysklogd/logger.c +++ b/sysklogd/logger.c @@ -77,14 +77,14 @@ static int pencode(char *s) ; if (*s) { *s = '\0'; - fac = decode(save, facilitynames); + fac = decode(save, bb_facilitynames); if (fac < 0) bb_error_msg_and_die("unknown %s name: %s", "facility", save); *s++ = '.'; } else { s = save; } - lev = decode(s, prioritynames); + lev = decode(s, bb_prioritynames); if (lev < 0) bb_error_msg_and_die("unknown %s name: %s", "priority", save); return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c index 2b85234a7..4265f4f90 100644 --- a/sysklogd/syslogd.c +++ b/sysklogd/syslogd.c @@ -447,7 +447,7 @@ static void parse_syslogdcfg(const char *file) primap = 0xff; /* all 8 log levels enabled */ else { uint8_t priority; - code = find_by_name(t, prioritynames); + code = find_by_name(t, bb_prioritynames); if (!code) goto cfgerr; primap = 0; @@ -480,7 +480,7 @@ static void parse_syslogdcfg(const char *file) next_facility = strchr(t, ','); if (next_facility) *next_facility++ = '\0'; - code = find_by_name(t, facilitynames); + code = find_by_name(t, bb_facilitynames); if (!code) goto cfgerr; /* "mark" is not a real facility, skip it */ @@ -797,9 +797,9 @@ static void parse_fac_prio_20(int pri, char *res20) { const CODE *c_pri, *c_fac; - c_fac = find_by_val(LOG_FAC(pri) << 3, facilitynames); + c_fac = find_by_val(LOG_FAC(pri) << 3, bb_facilitynames); if (c_fac) { - c_pri = find_by_val(LOG_PRI(pri), prioritynames); + c_pri = find_by_val(LOG_PRI(pri), bb_prioritynames); if (c_pri) { snprintf(res20, 20, "%s.%s", c_fac->c_name, c_pri->c_name); return; diff --git a/sysklogd/syslogd_and_logger.c b/sysklogd/syslogd_and_logger.c index 6458a9332..6d06a718b 100644 --- a/sysklogd/syslogd_and_logger.c +++ b/sysklogd/syslogd_and_logger.c @@ -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 |