From 2a1e8d7c30c90e17fccaeec89e4963a8d825063d Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 25 Jul 2024 20:28:45 +0300
Subject: [PATCH] exit(3): clarify how to obtain full exit status of the exited
 process

(cherry picked from commit c4269e63ecf301306a6176b9fe9002c4c2265695)
---
 lib/libc/stdlib/exit.3 | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/libc/stdlib/exit.3 b/lib/libc/stdlib/exit.3
index c190f5fac27..2fb3ab165da 100644
--- a/lib/libc/stdlib/exit.3
+++ b/lib/libc/stdlib/exit.3
@@ -103,6 +103,20 @@ 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.