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Diffstat (limited to 'lib/libc/sys/mprotect.2')
-rw-r--r-- | lib/libc/sys/mprotect.2 | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/libc/sys/mprotect.2 b/lib/libc/sys/mprotect.2 new file mode 100644 index 0000000..bb2b9ad --- /dev/null +++ b/lib/libc/sys/mprotect.2 @@ -0,0 +1,58 @@ +.\" Copyright (c) 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)mprotect.2 8.1 (Berkeley) 6/9/93 +.\" +.Dd June 9, 1993 +.Dt MPROTECT 2 +.Os +.Sh NAME +.Nm mprotect +.Nd control the protection of pages +.Sh SYNOPSIS +.Fn mprotect "caddr_t addr" "int len" "int prot" +.Sh DESCRIPTION +The +.Fn mprotect +system call +changes the specified pages to have protection +.Fa prot . +Not all implementations will guarantee protection on a page basis; +the granularity of protection changes may be as large as an entire region. +.Sh SEE ALSO +.Xr msync 2 , +.Xr munmap 2 , +.Xr madvise 2 , +.Xr mincore 2 +.Sh HISTORY +The +.Fn mprotect +function first appeared in 4.4BSD. |