1 /*- 2 * Copyright (c) 2001 Jake Burkholder. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _MACHINE_STACK_H_ 30 #define _MACHINE_STACK_H_ 31 32 #define INKERNEL(va) \ 33 ((va) >= VM_MIN_KERNEL_ADDRESS && (va) <= VM_MAX_KERNEL_ADDRESS) 34 35 struct unwind_state { 36 uintptr_t fp; 37 uintptr_t pc; 38 }; 39 40 bool unwind_frame(struct thread *, struct unwind_state *); 41 42 #ifdef _SYS_PROC_H_ 43 44 #include <machine/pcb.h> 45 46 #define GET_STACK_USAGE(total, used) do { \ 47 struct thread *td = curthread; \ 48 (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \ 49 (used) = td->td_kstack + (total) - (vm_offset_t)&td; \ 50 } while (0) 51 52 static __inline bool 53 kstack_contains(struct thread *td, vm_offset_t va, size_t len) 54 { 55 return (va >= td->td_kstack && va + len >= va && 56 va + len <= td->td_kstack + td->td_kstack_pages * PAGE_SIZE - 57 sizeof(struct pcb)); 58 } 59 #endif /* _SYS_PROC_H_ */ 60 61 #endif /* !_MACHINE_STACK_H_ */ 62