From d8be53ac0d10308678d9ea3df94f37c048e179a5 Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Mon, 25 Feb 2019 16:42:56 +0100
Subject: [PATCH] getcpu.2: Note version where glibc wrapper was added

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man2/getcpu.2 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/man2/getcpu.2 b/man2/getcpu.2
index 88f8cdb8e..c6e5bdbff 100644
--- a/man2/getcpu.2
+++ b/man2/getcpu.2
@@ -67,6 +67,10 @@ Arguments point outside the calling process's address space.
 .SH VERSIONS
 .BR getcpu ()
 was added in kernel 2.6.19 for x86-64 and i386.
+Library support was added in glibc 2.29
+(Earlier glibc versions did not provide a wrapper for this system call,
+necessitating the use of
+.BR syscall (2).)
 .SH CONFORMING TO
 .BR getcpu ()
 is Linux-specific.