exit(3): clarify how to obtain full exit status of the exited process

Sponsored by: The FreeBSD Foundation MFC after: 3 days
emaste · Jul 29, 2024 · c4269e6 · c4269e6
1 parent 3f3ec4b
commit c4269e6
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/lib/libc/stdlib/exit.3 b/lib/libc/stdlib/exit.3
@@ -102,6 +102,20 @@ values described in
 .Xr sysexits 3
 may be used to provide more information to the parent process.
 .Pp
+The complete
+.Fa status
+value is avaliable as
+.Va si_status
+member of the
+.Vt siginfo_t
+structure, to the
+.Xr wait6 2
+and
+.Xr sigwaitinfo 2
+callers, and
+.Va SIGCHLD
+signal handlers.
+.Pp
 Calls to the
 .Fn exit
 function are serialized.