123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869 |
- /*-
- * Copyright (c) 2016 Ruslan Bukin <br@bsdpad.com>
- * All rights reserved.
- *
- * Portions of this software were developed by SRI International and the
- * University of Cambridge Computer Laboratory under DARPA/AFRL contract
- * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
- *
- * Portions of this software were developed by the University of Cambridge
- * Computer Laboratory as part of the CTSRD Project, with support from the
- * UK Higher Education Innovation Fund (HEIF).
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef _MACHINE_STACK_H_
- #define _MACHINE_STACK_H_
- #define INKERNEL(va) ((va) >= VM_MIN_KERNEL_ADDRESS && \
- (va) <= VM_MAX_KERNEL_ADDRESS)
- struct unwind_state {
- uintptr_t fp;
- uintptr_t sp;
- uintptr_t pc;
- };
- bool unwind_frame(struct thread *, struct unwind_state *);
- #ifdef _SYS_PROC_H_
- #include <machine/pcb.h>
- /* Get the current kernel thread stack usage. */
- #define GET_STACK_USAGE(total, used) do { \
- struct thread *td = curthread; \
- (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
- (used) = td->td_kstack + (total) - (vm_offset_t)&td; \
- } while (0)
- static __inline bool
- kstack_contains(struct thread *td, vm_offset_t va, size_t len)
- {
- return (va >= td->td_kstack && va + len >= va &&
- va + len <= td->td_kstack + td->td_kstack_pages * PAGE_SIZE -
- sizeof(struct pcb));
- }
- #endif /* _SYS_PROC_H_ */
- #endif /* !_MACHINE_STACK_H_ */
|