13c90d1eaSRobert Watson /* 24db79febSMark Johnston * This file is in the public domain. 33c90d1eaSRobert Watson */ 44db79febSMark Johnston /* $FreeBSD$ */ 53c90d1eaSRobert Watson 6*2555f175SKonstantin Belousov #ifndef _MACHINE_STACK_H_ 7*2555f175SKonstantin Belousov #define _MACHINE_STACK_H_ 8*2555f175SKonstantin Belousov 94db79febSMark Johnston #include <x86/stack.h> 10*2555f175SKonstantin Belousov 11*2555f175SKonstantin Belousov #ifdef _SYS_PROC_H_ 12*2555f175SKonstantin Belousov 13*2555f175SKonstantin Belousov /* Get the current kernel thread stack usage. */ 14*2555f175SKonstantin Belousov #define GET_STACK_USAGE(total, used) do { \ 15*2555f175SKonstantin Belousov struct thread *td = curthread; \ 16*2555f175SKonstantin Belousov (total) = (vm_offset_t)get_pcb_td(td) - td->td_kstack; \ 17*2555f175SKonstantin Belousov (used) = (vm_offset_t)get_pcb_td(td) - (vm_offset_t)&td; \ 18*2555f175SKonstantin Belousov } while (0) 19*2555f175SKonstantin Belousov 20*2555f175SKonstantin Belousov static __inline bool 21*2555f175SKonstantin Belousov kstack_contains(struct thread *td, vm_offset_t va, size_t len) 22*2555f175SKonstantin Belousov { 23*2555f175SKonstantin Belousov return (va >= td->td_kstack && va + len >= va && 24*2555f175SKonstantin Belousov va + len <= td->td_kstack + td->td_kstack_pages * PAGE_SIZE); 25*2555f175SKonstantin Belousov } 26*2555f175SKonstantin Belousov 27*2555f175SKonstantin Belousov #endif /* _SYS_PROC_H_ */ 28*2555f175SKonstantin Belousov 29*2555f175SKonstantin Belousov #endif 30