xnu-4903.221.2.tar.gz

[apple/xnu.git] / osfmk / kern / thread_kernel_state.h

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 * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
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 * This file contains Original Code and/or Modifications of Original Code
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 * compliance with the License. The rights granted to you under the License
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 * Please obtain a copy of the License at
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#ifndef	_KERN_THREAD_KERNEL_STATE_H_

#include <vm/vm_kern.h>

struct thread_kernel_state {
    machine_thread_kernel_state  machine;           /* must be first */
    kern_allocation_name_t       allocation_name;
} __attribute__((aligned(16)));

typedef struct thread_kernel_state * thread_kernel_state_t;

#define thread_get_kernel_state(thread) ((thread_kernel_state_t) \
    ((thread)->kernel_stack + kernel_stack_size - sizeof(struct thread_kernel_state)))

#define thread_initialize_kernel_state(thread)  \
    thread_get_kernel_state((thread))->allocation_name = NULL;

#endif /* _KERN_THREAD_KERNEL_STATE_H_ */