xref: /xnu-10002.81.5/osfmk/kern/thread_kernel_state.h (revision 5e3eaea39dcf651e66cb99ba7d70e32cc4a99587)
1*5e3eaea3SApple OSS Distributions /*
2*5e3eaea3SApple OSS Distributions  * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
3*5e3eaea3SApple OSS Distributions  *
4*5e3eaea3SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*5e3eaea3SApple OSS Distributions  *
6*5e3eaea3SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*5e3eaea3SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*5e3eaea3SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*5e3eaea3SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
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11*5e3eaea3SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*5e3eaea3SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
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14*5e3eaea3SApple OSS Distributions  *
15*5e3eaea3SApple OSS Distributions  * Please obtain a copy of the License at
16*5e3eaea3SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
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27*5e3eaea3SApple OSS Distributions  */
28*5e3eaea3SApple OSS Distributions 
29*5e3eaea3SApple OSS Distributions #ifndef _KERN_THREAD_KERNEL_STATE_H_
30*5e3eaea3SApple OSS Distributions 
31*5e3eaea3SApple OSS Distributions #include <vm/vm_kern.h>
32*5e3eaea3SApple OSS Distributions 
33*5e3eaea3SApple OSS Distributions struct thread_kernel_state {
34*5e3eaea3SApple OSS Distributions 	machine_thread_kernel_state  machine;       /* must be first */
35*5e3eaea3SApple OSS Distributions 	kern_allocation_name_t       allocation_name;
36*5e3eaea3SApple OSS Distributions } __attribute__((aligned(16)));
37*5e3eaea3SApple OSS Distributions 
38*5e3eaea3SApple OSS Distributions typedef struct thread_kernel_state * thread_kernel_state_t;
39*5e3eaea3SApple OSS Distributions 
40*5e3eaea3SApple OSS Distributions #define thread_get_kernel_state(thread) ((thread_kernel_state_t) \
41*5e3eaea3SApple OSS Distributions     ((thread)->kernel_stack + kernel_stack_size - sizeof(struct thread_kernel_state)))
42*5e3eaea3SApple OSS Distributions 
43*5e3eaea3SApple OSS Distributions #define thread_initialize_kernel_state(thread)  \
44*5e3eaea3SApple OSS Distributions     thread_get_kernel_state((thread))->allocation_name = NULL;
45*5e3eaea3SApple OSS Distributions 
46*5e3eaea3SApple OSS Distributions #endif /* _KERN_THREAD_KERNEL_STATE_H_ */
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