xref: /xnu-10063.141.1/osfmk/kern/thread_kernel_state.h (revision d8b80295118ef25ac3a784134bcf95cd8e88109f)
1*d8b80295SApple OSS Distributions /*
2*d8b80295SApple OSS Distributions  * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
3*d8b80295SApple OSS Distributions  *
4*d8b80295SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*d8b80295SApple OSS Distributions  *
6*d8b80295SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*d8b80295SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*d8b80295SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*d8b80295SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*d8b80295SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*d8b80295SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*d8b80295SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
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14*d8b80295SApple OSS Distributions  *
15*d8b80295SApple OSS Distributions  * Please obtain a copy of the License at
16*d8b80295SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*d8b80295SApple OSS Distributions  *
18*d8b80295SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*d8b80295SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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27*d8b80295SApple OSS Distributions  */
28*d8b80295SApple OSS Distributions 
29*d8b80295SApple OSS Distributions #ifndef _KERN_THREAD_KERNEL_STATE_H_
30*d8b80295SApple OSS Distributions 
31*d8b80295SApple OSS Distributions #include <vm/vm_kern.h>
32*d8b80295SApple OSS Distributions 
33*d8b80295SApple OSS Distributions struct thread_kernel_state {
34*d8b80295SApple OSS Distributions 	machine_thread_kernel_state  machine;       /* must be first */
35*d8b80295SApple OSS Distributions 	kern_allocation_name_t       allocation_name;
36*d8b80295SApple OSS Distributions } __attribute__((aligned(16)));
37*d8b80295SApple OSS Distributions 
38*d8b80295SApple OSS Distributions typedef struct thread_kernel_state * thread_kernel_state_t;
39*d8b80295SApple OSS Distributions 
40*d8b80295SApple OSS Distributions #define thread_get_kernel_state(thread) ((thread_kernel_state_t) \
41*d8b80295SApple OSS Distributions     ((thread)->kernel_stack + kernel_stack_size - sizeof(struct thread_kernel_state)))
42*d8b80295SApple OSS Distributions 
43*d8b80295SApple OSS Distributions #define thread_initialize_kernel_state(thread)  \
44*d8b80295SApple OSS Distributions     thread_get_kernel_state((thread))->allocation_name = NULL;
45*d8b80295SApple OSS Distributions 
46*d8b80295SApple OSS Distributions #endif /* _KERN_THREAD_KERNEL_STATE_H_ */
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