13c90d1eaSRobert Watson /*- 23c90d1eaSRobert Watson * Mach Operating System 33c90d1eaSRobert Watson * Copyright (c) 1992 Carnegie Mellon University 43c90d1eaSRobert Watson * All Rights Reserved. 53c90d1eaSRobert Watson * 63c90d1eaSRobert Watson * Permission to use, copy, modify and distribute this software and its 73c90d1eaSRobert Watson * documentation is hereby granted, provided that both the copyright 83c90d1eaSRobert Watson * notice and this permission notice appear in all copies of the 93c90d1eaSRobert Watson * software, derivative works or modified versions, and any portions 103c90d1eaSRobert Watson * thereof, and that both notices appear in supporting documentation. 113c90d1eaSRobert Watson * 123c90d1eaSRobert Watson * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 133c90d1eaSRobert Watson * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 143c90d1eaSRobert Watson * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 153c90d1eaSRobert Watson * 163c90d1eaSRobert Watson * Carnegie Mellon requests users of this software to return to 173c90d1eaSRobert Watson * 183c90d1eaSRobert Watson * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 193c90d1eaSRobert Watson * School of Computer Science 203c90d1eaSRobert Watson * Carnegie Mellon University 213c90d1eaSRobert Watson * Pittsburgh PA 15213-3890 223c90d1eaSRobert Watson * 233c90d1eaSRobert Watson * any improvements or extensions that they make and grant Carnegie Mellon 243c90d1eaSRobert Watson * the rights to redistribute these changes. 253c90d1eaSRobert Watson * 263c90d1eaSRobert Watson * $FreeBSD$ 273c90d1eaSRobert Watson */ 283c90d1eaSRobert Watson 293c90d1eaSRobert Watson #ifndef _MACHINE_STACK_H_ 303c90d1eaSRobert Watson #define _MACHINE_STACK_H_ 313c90d1eaSRobert Watson 323c90d1eaSRobert Watson extern int trapexit[]; 333c90d1eaSRobert Watson extern int asttrapexit[]; 343c90d1eaSRobert Watson extern int end[]; 353c90d1eaSRobert Watson 36*2555f175SKonstantin Belousov #ifdef _SYS_PROC_H_ 37*2555f175SKonstantin Belousov 38*2555f175SKonstantin Belousov #include <machine/pcb.h> 39*2555f175SKonstantin Belousov 40*2555f175SKonstantin Belousov /* Get the current kernel thread stack usage. */ 41*2555f175SKonstantin Belousov #define GET_STACK_USAGE(total, used) do { \ 42*2555f175SKonstantin Belousov struct thread *td = curthread; \ 43*2555f175SKonstantin Belousov (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \ 44*2555f175SKonstantin Belousov (used) = td->td_kstack + (total) - (vm_offset_t)&td; \ 45*2555f175SKonstantin Belousov } while (0) 46*2555f175SKonstantin Belousov 47*2555f175SKonstantin Belousov static __inline bool 48*2555f175SKonstantin Belousov kstack_contains(struct thread *td, vm_offset_t va, size_t len) 49*2555f175SKonstantin Belousov { 50*2555f175SKonstantin Belousov return (va >= td->td_kstack && va + len >= va && 51*2555f175SKonstantin Belousov va + len <= td->td_kstack + td->td_kstack_pages * PAGE_SIZE); 52*2555f175SKonstantin Belousov } 53*2555f175SKonstantin Belousov #endif /* _SYS_PROC_H_ */ 54*2555f175SKonstantin Belousov 553c90d1eaSRobert Watson #endif /* !_MACHINE_STACK_H_ */ 56