xref: /xnu-10002.41.9/osfmk/kern/thread_kernel_state.h (revision 699cd48037512bf4380799317ca44ca453c82f57)
1*699cd480SApple OSS Distributions /*
2*699cd480SApple OSS Distributions  * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
3*699cd480SApple OSS Distributions  *
4*699cd480SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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6*699cd480SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*699cd480SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*699cd480SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
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11*699cd480SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
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28*699cd480SApple OSS Distributions 
29*699cd480SApple OSS Distributions #ifndef _KERN_THREAD_KERNEL_STATE_H_
30*699cd480SApple OSS Distributions 
31*699cd480SApple OSS Distributions #include <vm/vm_kern.h>
32*699cd480SApple OSS Distributions 
33*699cd480SApple OSS Distributions struct thread_kernel_state {
34*699cd480SApple OSS Distributions 	machine_thread_kernel_state  machine;       /* must be first */
35*699cd480SApple OSS Distributions 	kern_allocation_name_t       allocation_name;
36*699cd480SApple OSS Distributions } __attribute__((aligned(16)));
37*699cd480SApple OSS Distributions 
38*699cd480SApple OSS Distributions typedef struct thread_kernel_state * thread_kernel_state_t;
39*699cd480SApple OSS Distributions 
40*699cd480SApple OSS Distributions #define thread_get_kernel_state(thread) ((thread_kernel_state_t) \
41*699cd480SApple OSS Distributions     ((thread)->kernel_stack + kernel_stack_size - sizeof(struct thread_kernel_state)))
42*699cd480SApple OSS Distributions 
43*699cd480SApple OSS Distributions #define thread_initialize_kernel_state(thread)  \
44*699cd480SApple OSS Distributions     thread_get_kernel_state((thread))->allocation_name = NULL;
45*699cd480SApple OSS Distributions 
46*699cd480SApple OSS Distributions #endif /* _KERN_THREAD_KERNEL_STATE_H_ */
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