xref: /xnu-10002.1.13/bsd/sys/kas_info.h (revision 1031c584a5e37aff177559b9f69dbd3c8c3fd30a)
1 /*
2  * Copyright (c) 2011 Apple Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
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25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 
29 #ifndef _SYS_KAS_INFO_H_
30 #define _SYS_KAS_INFO_H_
31 
32 #include <sys/cdefs.h>
33 #include <Availability.h>
34 
35 /*
36  * kas_info() ("Kernel Address Space Info") is a private interface that allows
37  * appropriately privileged system components to introspect the overall
38  * kernel address space layout.
39  */
40 
41 __BEGIN_DECLS
42 
43 /* The slide of the main kernel compared to its static link address */
44 #define KAS_INFO_KERNEL_TEXT_SLIDE_SELECTOR     (0) /* returns uint64_t */
45 #define KAS_INFO_KERNEL_SEGMENT_VMADDR_SELECTOR (1)
46 
47 #define KAS_INFO_MAX_SELECTOR                   (2)
48 
49 #ifndef KERNEL
50 
51 int kas_info(int selector, void *value, size_t *size) __OSX_AVAILABLE_STARTING(__MAC_10_8, __IPHONE_6_0);
52 
53 #endif /* KERNEL */
54 
55 __END_DECLS
56 
57 #endif  /* !_SYS_KAS_INFO_H_ */
58