7c567fcc56
Reviewed by: jhb Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D38320
30 lines
645 B
C
30 lines
645 B
C
/*
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* This file is in the public domain.
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*/
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/* $FreeBSD$ */
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#ifndef _MACHINE_STACK_H_
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#define _MACHINE_STACK_H_
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#include <x86/stack.h>
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#ifdef _SYS_PROC_H_
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/* Get the current kernel thread stack usage. */
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#define GET_STACK_USAGE(total, used) do { \
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struct thread *td = curthread; \
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(total) = (vm_offset_t)get_pcb_td(td) - td->td_kstack; \
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(used) = (vm_offset_t)get_pcb_td(td) - (vm_offset_t)&td; \
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} while (0)
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static __inline bool
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kstack_contains(struct thread *td, vm_offset_t va, size_t len)
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{
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return (va >= td->td_kstack && va + len >= va &&
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va + len <= (vm_offset_t)get_pcb_td(td));
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}
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#endif /* _SYS_PROC_H_ */
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#endif
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