[ulog] Fix thread info show when kernel not startup.
@@ -318,9 +318,12 @@ RT_WEAK rt_size_t ulog_formater(char *log_buf, rt_uint32_t level, const char *ta
/* is not in interrupt context */
if (rt_interrupt_get_nest() == 0)
{
- rt_size_t name_len = rt_strnlen(rt_thread_self()->name, RT_NAME_MAX);
-
- rt_strncpy(log_buf + log_len, rt_thread_self()->name, name_len);
+ rt_size_t name_len = 0;
+ const char *thread_name = "N/A";
+ if (rt_thread_self()->name)
+ thread_name = rt_thread_self()->name;
+ name_len = rt_strnlen(thread_name, RT_NAME_MAX);
+ rt_strncpy(log_buf + log_len, thread_name, name_len);
log_len += name_len;
}
else
