What are the in-kernel functions to print human readable timestamps (bintime)?

Hi,

I'm looking for a function to convert bintime to a human readable  
format in the kernel... and what is the usual format we use?


The use case for this is: if something throws a log from the kernel  
about a signal, I want to know when it happened, or in terms of code  
see below (tabs are most probably messed up).

Do we have some kind of policy in terms of kernel messages and  
timestamps? Like "do not commit logging with timestamps"? I have the  
code below because I needed it at least once and think something like  
this (in a human readably shape) would be beneficial to have in the  
tree.

Code:
---snip---
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index 4a15bd45355..a83eebe0736 100644
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -80,6 +80,7 @@ __FBSDID("$FreeBSD$");
  #include <sys/sysent.h>
  #include <sys/syslog.h>
  #include <sys/sysproto.h>
+#include <sys/time.h>
  #include <sys/timers.h>
  #include <sys/unistd.h>
  #include <sys/wait.h>
@@ -3440,14 +3441,18 @@ sigexit(struct thread *td, int sig)
                  */
                 if (coredump(td) == 0)
                         sig |= WCOREFLAG;
-               if (kern_logsigexit)
+               if (kern_logsigexit) {
+                       struct bintime now;
+
+                       getbintime(&now);
                         log(LOG_INFO,
-                           "pid %d (%s), jid %d, uid %d: exited on "
-                           "signal %d%s\n", p->p_pid, p->p_comm,
+                           "%zd: pid %d (%s), jid %d, uid %d: exited on "
+                           "signal %d%s\n", now.sec, p->p_pid, p->p_comm,
                             p->p_ucred->cr_prison->pr_id,
                             td->td_ucred->cr_uid,
                             sig &~ WCOREFLAG,
                             sig & WCOREFLAG ? " (core dumped)" : "");
+               }
         } else
                 PROC_UNLOCK(p);
         exit1(td, 0, sig);
---snip---

Bye,
Alexander.

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