vm_map_protect man page on PC-BSD

vm_map_protect man page on PC-BSD

Man page or keyword search:
man Server 9747 pages
apropos Keyword Search (all sections)
Output format

VM_MAP_PROTECT(9)	 BSD Kernel Developer's Manual	     VM_MAP_PROTECT(9)

NAME
     vm_map_protect — apply protection bits to a virtual memory region

SYNOPSIS
     #include <sys/param.h>
     #include <vm/vm.h>
     #include <vm/vm_map.h>

     int
     vm_map_protect(vm_map_t map, vm_offset_t start, vm_offset_t end,
	 vm_prot_t new_prot, boolean_t set_max);

DESCRIPTION
     The vm_map_protect() function sets the protection bits of the address
     region bounded by start and end within the map map to new_prot.

     If set_max is TRUE, new_prot is treated as the new max_protection setting
     for each underlying entry.	 Otherwise, only the protection field is
     affected.

     The range MUST be contiguous, and MUST NOT contain sub-maps.

IMPLEMENTATION NOTES
     The function acquires a lock on the map for the duration, by calling
     vm_map_lock(9).

RETURN VALUES
     The vm_map_protect() function returns KERN_SUCCESS if the protection bits
     could be set successfully.

     If a sub-map entry was encountered in the range, KERN_INVALID_ARGUMENT is
     returned.	If the value of new_prot would exceed max_protection for an
     entry within the range, KERN_PROTECTION_FAILURE is returned.

SEE ALSO
     vm_map(9)

AUTHORS
     This manual page was written by Bruce M Simpson ⟨bms@spc.org⟩.

BSD				 July 19, 2003				   BSD

[top]

List of man pages available for PC-BSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]

Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................

Vote for polarhome