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Man Pages


Manual Reference Pages  -  MUNMAP (2)

NAME

munmap - remove a mapping

CONTENTS

Library
Synopsis
Description
Return Values
Errors
History

LIBRARY


.Lb libc

SYNOPSIS


.In sys/mman.h int munmap void *addr size_t len

DESCRIPTION

The munmap system call deletes the mappings for the specified address range, and causes further references to addresses within the range to generate invalid memory references.

RETURN VALUES


.Rv -std munmap

ERRORS

The munmap system call will fail if:
[EINVAL]
  The addr argument was not page aligned, the len argument was zero or negative, or some part of the region being unmapped is outside the valid address range for a process.

SEE ALSO

madvise(2), mincore(2), mmap(2), mprotect(2), msync(2), getpagesize(3)

HISTORY

The munmap system call first appeared in BSD 4.4 .
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