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

     /*-
      * Copyright (c) 2015 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.
     *
     * $FreeBSD: releng/11.2/sys/riscv/include/setjmp.h 300726 2016-05-26 10:03:30Z br $
     */
    
    #ifndef _MACHINE_SETJMP_H_
    #define _MACHINE_SETJMP_H_
    
    #include <sys/cdefs.h>
    
    #define _JBLEN          63      /* sp, ra, [f]s0-11, magic val, sigmask */
    #define _JB_SIGMASK     21
    
    #ifdef  __ASSEMBLER__
    #define _JB_MAGIC__SETJMP       0xbe87fd8a2910af00
    #define _JB_MAGIC_SETJMP        0xbe87fd8a2910af01
    #endif /* !__ASSEMBLER__ */
    
    #ifndef __ASSEMBLER__
    /*
     * jmp_buf and sigjmp_buf are encapsulated in different structs to force
     * compile-time diagnostics for mismatches.  The structs are the same
     * internally to avoid some run-time errors for mismatches.
     */
    #if __BSD_VISIBLE || __POSIX_VISIBLE || __XSI_VISIBLE
    typedef struct _sigjmp_buf { long _sjb[_JBLEN + 1] __aligned(16); } sigjmp_buf[1];
    #endif
    
    typedef struct _jmp_buf { long _jb[_JBLEN + 1] __aligned(16); } jmp_buf[1];
    #endif  /* __ASSEMBLER__ */
    
    #endif /* !_MACHINE_SETJMP_H_ */

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