MUNMAP(2) BSD System Calls Manual MUNMAP(2)

NAME
     mmuunnmmaapp - remove a mapping

SYNOPSIS
     ##iinncclluuddee <>

     int
     mmuunnmmaapp(void *addr, sizet len);

DESCRIPTION
     The mmuunnmmaapp() system call deletes the mappings for the specified address
     range, causing further references to addresses within the range to gener-
     ate invalid memory references.

RETURN VALUES
     Upon successful completion, mmuunnmmaapp returns zero.  Otherwise, a value of
     -1 is returned and errno is set to indicate the error.

EERRRROORRSS
     MMuunnmmaapp() will fail if:

     [EINVAL]           The addr parameter was not page aligned (i.e., a mul-
                        tiple of the page size).

     [EINVAL]           The len parameter was negative or zero.

     [EINVAL]           Some part of the region being unmapped is not part of
                        the currently valid address space.

LEGACY SYNOPSIS
     ##iinncclluuddee <>
     ##iinncclluuddee <>

     The include file  is necessary.

     int
     mmuunnmmaapp(caddrt addr, sizet len);

     The type of addr has changed.

SEE ALSO
     getpagesize(3), msync(2), munmap(2), mprotect(2), madvise(2), mincore(2),
     compat(5)

HISTORY     The mmuunnmmaapp() function first appeared in 4.4BSD.

BSD                             April 15, 1994                             BSD