diff options
Diffstat (limited to 'common/log.c')
| -rw-r--r-- | common/log.c | 40 |
1 files changed, 29 insertions, 11 deletions
diff --git a/common/log.c b/common/log.c index b7a6ebe298..9f98e9aff8 100644 --- a/common/log.c +++ b/common/log.c @@ -13,7 +13,7 @@ DECLARE_GLOBAL_DATA_PTR; -static const char *log_cat_name[LOGC_COUNT - LOGC_NONE] = { +static const char *log_cat_name[] = { "none", "arch", "board", @@ -28,7 +28,10 @@ static const char *log_cat_name[LOGC_COUNT - LOGC_NONE] = { "acpi", }; -static const char *log_level_name[LOGL_COUNT] = { +_Static_assert(ARRAY_SIZE(log_cat_name) == LOGC_COUNT - LOGC_NONE, + "log_cat_name size"); + +static const char *log_level_name[] = { "EMERG", "ALERT", "CRIT", @@ -41,6 +44,9 @@ static const char *log_level_name[LOGL_COUNT] = { "IO", }; +_Static_assert(ARRAY_SIZE(log_level_name) == LOGL_COUNT, "log_level_name size"); + +/* All error responses MUST begin with '<' */ const char *log_get_cat_name(enum log_category_t cat) { const char *name; @@ -191,32 +197,33 @@ static bool log_passes_filters(struct log_device *ldev, struct log_rec *rec) * log_dispatch() - Send a log record to all log devices for processing * * The log record is sent to each log device in turn, skipping those which have - * filters which block the record + * filters which block the record. + * + * All log messages created while processing log record @rec are ignored. * - * @rec: Log record to dispatch - * @return 0 (meaning success) + * @rec: log record to dispatch + * Return: 0 msg sent, 1 msg not sent while already dispatching another msg */ static int log_dispatch(struct log_rec *rec) { struct log_device *ldev; - static int processing_msg; /* * When a log driver writes messages (e.g. via the network stack) this * may result in further generated messages. We cannot process them here * as this might result in infinite recursion. */ - if (processing_msg) - return 0; + if (gd->processing_msg) + return 1; /* Emit message */ - processing_msg = 1; + gd->processing_msg = true; list_for_each_entry(ldev, &gd->log_head, sibling_node) { if ((ldev->flags & LOGDF_ENABLE) && log_passes_filters(ldev, rec)) ldev->drv->emit(ldev, rec); } - processing_msg = 0; + gd->processing_msg = false; return 0; } @@ -227,6 +234,12 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file, struct log_rec rec; va_list args; + /* Check for message continuation */ + if (cat == LOGC_CONT) + cat = gd->logc_prev; + if (level == LOGL_CONT) + level = gd->logl_prev; + rec.cat = cat; rec.level = level & LOGL_LEVEL_MASK; rec.force_debug = level & LOGL_FORCE_DEBUG; @@ -242,7 +255,10 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file, gd->log_drop_count++; return -ENOSYS; } - log_dispatch(&rec); + if (!log_dispatch(&rec)) { + gd->logc_prev = cat; + gd->logl_prev = level; + } return 0; } @@ -382,6 +398,8 @@ int log_init(void) if (!gd->default_log_level) gd->default_log_level = CONFIG_LOG_DEFAULT_LEVEL; gd->log_fmt = log_get_default_format(); + gd->logc_prev = LOGC_NONE; + gd->logl_prev = LOGL_INFO; return 0; } |