/*
* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_HEADER_START@
*
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License"). You may not use this file except in compliance with the
+ * License. Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
*
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * @APPLE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
shadow_object = map_entry->object.vm_object;
vm_object_unlock(object);
- prot = map_entry->protection & ~VM_PROT_WRITE;
-#ifdef STACK_ONLY_NX
- if (map_entry->alias != VM_MEMORY_STACK && prot)
- prot |= VM_PROT_EXECUTE;
-#endif
vm_object_pmap_protect(
object, map_entry->offset,
total_size,
? PMAP_NULL :
target_map->pmap),
map_entry->vme_start,
- prot);
+ map_entry->protection & ~VM_PROT_WRITE);
total_size -= (map_entry->vme_end
- map_entry->vme_start);
next_entry = map_entry->vme_next;
mutex_unlock(&(named_entry)->Lock);
}
-/* Allow manipulation of individual page state. This is actually part of */
-/* the UPL regimen but takes place on the memory entry rather than on a UPL */
-
-kern_return_t
-mach_memory_entry_page_op(
- ipc_port_t entry_port,
- vm_object_offset_t offset,
- int ops,
- ppnum_t *phys_entry,
- int *flags)
-{
- vm_named_entry_t mem_entry;
- vm_object_t object;
- kern_return_t kr;
-
- if (entry_port == IP_NULL ||
- ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
- return KERN_INVALID_ARGUMENT;
- }
-
- mem_entry = (vm_named_entry_t) entry_port->ip_kobject;
-
- named_entry_lock(mem_entry);
-
- if (mem_entry->is_sub_map || mem_entry->is_pager) {
- named_entry_unlock(mem_entry);
- return KERN_INVALID_ARGUMENT;
- }
-
- object = mem_entry->backing.object;
- if (object == VM_OBJECT_NULL) {
- named_entry_unlock(mem_entry);
- return KERN_INVALID_ARGUMENT;
- }
-
- vm_object_reference(object);
- named_entry_unlock(mem_entry);
-
- kr = vm_object_page_op(object, offset, ops, phys_entry, flags);
-
- vm_object_deallocate(object);
-
- return kr;
-}
-
-/*
- * mach_memory_entry_range_op offers performance enhancement over
- * mach_memory_entry_page_op for page_op functions which do not require page
- * level state to be returned from the call. Page_op was created to provide
- * a low-cost alternative to page manipulation via UPLs when only a single
- * page was involved. The range_op call establishes the ability in the _op
- * family of functions to work on multiple pages where the lack of page level
- * state handling allows the caller to avoid the overhead of the upl structures.
- */
-
-kern_return_t
-mach_memory_entry_range_op(
- ipc_port_t entry_port,
- vm_object_offset_t offset_beg,
- vm_object_offset_t offset_end,
- int ops,
- int *range)
-{
- vm_named_entry_t mem_entry;
- vm_object_t object;
- kern_return_t kr;
-
- if (entry_port == IP_NULL ||
- ip_kotype(entry_port) != IKOT_NAMED_ENTRY) {
- return KERN_INVALID_ARGUMENT;
- }
-
- mem_entry = (vm_named_entry_t) entry_port->ip_kobject;
-
- named_entry_lock(mem_entry);
-
- if (mem_entry->is_sub_map || mem_entry->is_pager) {
- named_entry_unlock(mem_entry);
- return KERN_INVALID_ARGUMENT;
- }
-
- object = mem_entry->backing.object;
- if (object == VM_OBJECT_NULL) {
- named_entry_unlock(mem_entry);
- return KERN_INVALID_ARGUMENT;
- }
-
- vm_object_reference(object);
- named_entry_unlock(mem_entry);
-
- kr = vm_object_range_op(object,
- offset_beg,
- offset_end,
- ops,
- range);
-
- vm_object_deallocate(object);
-
- return kr;
-}
kern_return_t
projects / apple / xnu.git / blobdiff