1/*
2 * This file is in the public domain.
3 */
4
5#ifndef _MACHINE_STACK_H_
6#define _MACHINE_STACK_H_
7
8#include <x86/stack.h>
9
10#ifdef _SYS_PROC_H_
11
12/* Get the current kernel thread stack usage. */
13#define GET_STACK_USAGE(total, used) do { \
14 struct thread *td = curthread; \
15 (total) = (vm_offset_t)get_pcb_td(td) - td->td_kstack; \
16 (used) = (vm_offset_t)get_pcb_td(td) - (vm_offset_t)&td; \
17} while (0)
18
19static __inline bool
20kstack_contains(struct thread *td, vm_offset_t va, size_t len)
21{
22 return (va >= td->td_kstack && va + len >= va &&
23 va + len <= (vm_offset_t)get_pcb_td(td));
24}
25
26#endif /* _SYS_PROC_H_ */
27
28#endif