From: Mark Wielaard <mark@klomp.org>
Date: Wed, 29 May 2019 23:05:55 +0000 (+0200)
Subject: pkey_alloc.2, mprotect.2: _GNU_SOURCE is required for the pkey functions.
X-Git-Tag: man-pages-5.02~82
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f92ea96babd20a4cdbe92c33871d7a19f190c2e5;p=thirdparty%2Fman-pages.git

pkey_alloc.2, mprotect.2: _GNU_SOURCE is required for the pkey functions.

To get the pkey_alloc, pkey_free and pkey_mprotect functions
_GNU_SOURCE needs to be defined before including sys/mman.h.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Mark Wielaard <mark@klomp.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---

diff --git a/man2/mprotect.2 b/man2/mprotect.2
index cbbfd51377..866ac7736b 100644
--- a/man2/mprotect.2
+++ b/man2/mprotect.2
@@ -38,6 +38,10 @@ mprotect, pkey_mprotect \- set protection on a region of memory
 .B #include <sys/mman.h>
 .PP
 .BI "int mprotect(void *" addr ", size_t " len ", int " prot );
+
+.BR "#define _GNU_SOURCE" "             /* See feature_test_macros(7) */"
+.B #include <sys/mman.h>
+.PP
 .BI "int pkey_mprotect(void *" addr ", size_t " len ", int " prot ", int " pkey ");
 .fi
 .SH DESCRIPTION
diff --git a/man2/pkey_alloc.2 b/man2/pkey_alloc.2
index ce9bd96cd5..d82f316a82 100644
--- a/man2/pkey_alloc.2
+++ b/man2/pkey_alloc.2
@@ -27,6 +27,7 @@
 pkey_alloc, pkey_free \- allocate or free a protection key
 .SH SYNOPSIS
 .nf
+.BR "#define _GNU_SOURCE" "             /* See feature_test_macros(7) */"
 .B #include <sys/mman.h>
 .PP
 .BI "int pkey_alloc(unsigned int " flags ", unsigned int " access_rights ");"