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logging: consistently retrieve source ID from remote messages 

The log message header "source" field for messages received from a
remote domain contains the source ID, rather than a pointer to the
source data (which would not be valid in the local domain).

msg_filter_check() did not handle this case and obtained a garbage source
ID for remote log messages. This caused an assertion failure in
filter_get().

Consistently handle this by adding a log_msg_get_source_id() function
that returns the source ID for both local and remote messages. This
function was implemented based on code factored out of
log_output_msg_process().

Signed-off-by: Ben Wolsieffer <benwolsieffer@gmail.com>
This commit is contained in:
Ben Wolsieffer 2024-04-12 22:49:14 -04:00 committed by Alberto Escolar
parent 03c5c0f818
commit 72cdbcbbba
4 changed files with 29 additions and 20 deletions
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8
include/zephyr/logging/log_msg.h
View File

@ -788,6 +788,14 @@ static inline const void *log_msg_get_source(struct log_msg *msg)
return msg->hdr.source;
}
/** @brief Get log message source ID.
*
* @param msg Log message.
*
* @return Source ID, or -1 if not available.
*/
int16_t log_msg_get_source_id(struct log_msg *msg);
/** @brief Get timestamp.
*
* @param msg Log message.

6
subsys/logging/log_core.c
View File

@ -466,18 +466,16 @@ static bool msg_filter_check(struct log_backend const *backend,
uint8_t level;
uint8_t domain_id;
int16_t source_id;
struct log_source_dynamic_data *source;
source = (struct log_source_dynamic_data *)log_msg_get_source(&msg->log);
level = log_msg_get_level(&msg->log);
domain_id = log_msg_get_domain(&msg->log);
source_id = log_msg_get_source_id(&msg->log);
/* Accept all non-logging messages. */
if (level == LOG_LEVEL_NONE) {
return true;
}
if (source) {
source_id = log_dynamic_source_id(source);
if (source_id >= 0) {
backend_level = log_filter_get(backend, domain_id, source_id, true);
return (level <= backend_level);

18
subsys/logging/log_msg.c
View File

@ -389,3 +389,21 @@ void z_log_msg_runtime_vcreate(uint8_t domain_id, const void *source,
z_log_msg_finalize(msg, source, desc, data);
}
}
int16_t log_msg_get_source_id(struct log_msg *msg)
{
if (!z_log_is_local_domain(log_msg_get_domain(msg))) {
/* Remote domain is converting source pointer to ID */
return (int16_t)(uintptr_t)log_msg_get_source(msg);
}
void *source = (void *)log_msg_get_source(msg);
if (source != NULL) {
return IS_ENABLED(CONFIG_LOG_RUNTIME_FILTERING)
? log_dynamic_source_id(source)
: log_const_source_id(source);
}
return -1;
}

17
subsys/logging/log_output.c
View File

@ -717,22 +717,7 @@ void log_output_msg_process(const struct log_output *output,
log_timestamp_t timestamp = log_msg_get_timestamp(msg);
uint8_t level = log_msg_get_level(msg);
uint8_t domain_id = log_msg_get_domain(msg);
int16_t source_id;
if (IS_ENABLED(CONFIG_LOG_MULTIDOMAIN) && domain_id != Z_LOG_LOCAL_DOMAIN_ID) {
/* Remote domain is converting source pointer to ID */
source_id = (int16_t)(uintptr_t)log_msg_get_source(msg);
} else {
void *source = (void *)log_msg_get_source(msg);
if (source != NULL) {
source_id = IS_ENABLED(CONFIG_LOG_RUNTIME_FILTERING) ?
log_dynamic_source_id(source) :
log_const_source_id(source);
} else {
source_id = -1;
}
}
int16_t source_id = log_msg_get_source_id(msg);
const char *sname = source_id >= 0 ? log_source_name_get(domain_id, source_id) : NULL;
size_t plen, dlen;