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Current File : //backups/router/usr/lib/include/machine/stack.h

/*
 * This file is in the public domain.
 */

#ifndef _MACHINE_STACK_H_
#define	_MACHINE_STACK_H_

#include <x86/stack.h>

#ifdef _SYS_PROC_H_

/* Get the current kernel thread stack usage. */
#define GET_STACK_USAGE(total, used) do {				\
	struct thread	*td = curthread;				\
	(total) = td->td_kstack_pages * PAGE_SIZE;			\
	(used) = (char *)td->td_kstack +				\
	    td->td_kstack_pages * PAGE_SIZE -				\
	    (char *)&td;						\
} while (0)

static __inline bool
kstack_contains(struct thread *td, vm_offset_t va, size_t len)
{
	return (va >= td->td_kstack && va + len >= va &&
	    va + len <= td->td_kstack + td->td_kstack_pages * PAGE_SIZE);
}
#endif	/* _SYS_PROC_H_ */

#endif

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