From: Alejandro Colomar <alx.manpages@gmail.com>
Date: Sun, 7 Feb 2021 12:46:12 +0000 (+0100)
Subject: mlock.2: mlock2(): Fix prototype parameter types
X-Git-Tag: man-pages-5.11~210
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ae403a2d4aa8b78f0e1ee6952b1a4aeb7fdffae;p=thirdparty%2Fman-pages.git

mlock.2: mlock2(): Fix prototype parameter types

The documented prototype for mlock2() was a mix of the
glibc wrapper prototype and the kernel syscall prototype.
Let's document the glibc wrapper prototype, which is shown below.

......

.../glibc$ grep_glibc_prototype mlock2
sysdeps/unix/sysv/linux/bits/mman-shared.h:55:
int mlock2 (const void *__addr, size_t __length, unsigned int __flags) __THROW;
.../glibc$

function grep_glibc_prototype()
{
	if ! [ -v 1 ]; then
		>&2 echo "Usage: ${FUNCNAME[0]} <func>";
		return ${EX_USAGE};
	fi

	find * -type f \
	|grep '\.h$' \
	|sort -V \
	|xargs pcregrep -Mn \
	  "(?s)^[^\s#][\w\s]+\s+\**${1}\s*\([\w\s()[\]*,]*?(...)?\)[\w\s()]*;" \
	|sed -E 's/^[^:]+:[0-9]+:/&\n/';
}

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---

diff --git a/man2/mlock.2 b/man2/mlock.2
index 2822df7cf3..f48d632c4e 100644
--- a/man2/mlock.2
+++ b/man2/mlock.2
@@ -31,7 +31,7 @@ mlock, mlock2, munlock, mlockall, munlockall \- lock and unlock memory
 .B #include <sys/mman.h>
 .PP
 .BI "int mlock(const void *" addr ", size_t " len );
-.BI "int mlock2(const void *" addr ", size_t " len ", int " flags );
+.BI "int mlock2(const void *" addr ", size_t " len ", unsigned int " flags );
 .BI "int munlock(const void *" addr ", size_t " len );
 .PP
 .BI "int mlockall(int " flags );