NAME
minherit —
control the inheritance of
pages
SYNOPSIS
#include
<sys/types.h>
#include <sys/mman.h>
int
minherit(caddr_t addr,
size_t len, int inherit);
DESCRIPTION
The
minherit()
system call changes the specified pages to have the inheritance
characteristic inherit, which can be set to
VM_INHERIT_NONE, VM_INHERIT_COPY, or VM_INHERIT_SHARE. Not all
implementations will guarantee that the inheritance characteristic can be
set on a page basis; the granularity of changes may be as large as an entire
region.
RETURN VALUES
The minherit() function returns the
value 0 if successful; otherwise the value -1 is returned and
the global variable errno is set to indicate the
error.
ERRORS
The minherit() system call will fail
if:
- [
EINVAL] - The virtual address range specified by the addr and len arguments is not valid.
- [
EACCES] - The flags specified by the inherit argument were not valid for the pages specified by the addr and len arguments.
SEE ALSO
HISTORY
The minherit() function first appeared in
OpenBSD.