The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/riscv/include/stack.h

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    1 /*-
    2  * Copyright (c) 2016 Ruslan Bukin <br@bsdpad.com>
    3  * All rights reserved.
    4  *
    5  * Portions of this software were developed by SRI International and the
    6  * University of Cambridge Computer Laboratory under DARPA/AFRL contract
    7  * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
    8  *
    9  * Portions of this software were developed by the University of Cambridge
   10  * Computer Laboratory as part of the CTSRD Project, with support from the
   11  * UK Higher Education Innovation Fund (HEIF).
   12  *
   13  * Redistribution and use in source and binary forms, with or without
   14  * modification, are permitted provided that the following conditions
   15  * are met:
   16  * 1. Redistributions of source code must retain the above copyright
   17  *    notice, this list of conditions and the following disclaimer.
   18  * 2. Redistributions in binary form must reproduce the above copyright
   19  *    notice, this list of conditions and the following disclaimer in the
   20  *    documentation and/or other materials provided with the distribution.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  * $FreeBSD$
   35  */
   36 
   37 #ifndef _MACHINE_STACK_H_
   38 #define _MACHINE_STACK_H_
   39 
   40 #define INKERNEL(va)    ((va) >= VM_MIN_KERNEL_ADDRESS && \
   41                          (va) <= VM_MAX_KERNEL_ADDRESS)
   42 
   43 struct unwind_state {
   44         uint64_t fp;
   45         uint64_t sp;
   46         uint64_t pc;
   47 };
   48 
   49 int unwind_frame(struct unwind_state *);
   50 
   51 #endif /* !_MACHINE_STACK_H_ */

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