/*      $OpenBSD: sigsetjmp.S,v 1.5 2023/12/10 16:45:52 deraadt Exp $   */
/*      $NetBSD: sigsetjmp.S,v 1.5 2000/08/28 00:45:59 eeh Exp $        */
/*
 * Copyright (c) 1992, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This software was developed by the Computer Systems Engineering group
 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
 * contributed to Berkeley.
 *
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 */

#include "SYS.h"

ENTRY(sigsetjmp)
        mov     %o0, %o3                /* Save our jmp_buf in %o3 */
        brz,pt  %o1, 1f
         st     %o1, [%o0 + 8*14]       ! jmpbuf[JBLEN]

        mov     1, %o0                  /* SIG_BLOCK */
        mov     SYS_sigprocmask, %g1    
        clr     %o1                     /* sigprocmask(SIG_BLOCK, 0) */
99:     t       ST_SYSCALL
        PINSYSCALL(SYS_sigprocmask, 99b)
        stx     %o0, [%o3 + 0x10]

1:      stx     %sp, [%o3 + 0x00]       /* store caller's stack pointer */
        stx     %o7, [%o3 + 0x08]       /* ... and return pc */
        retl
         clr    %o0                     /* return 0 */
END_WEAK(sigsetjmp)

ENTRY(siglongjmp)
        save    %sp, -CC64FSZ, %sp
        flushw
        ld      [%i0 + 8*14], %g1

        brz,pt  %g1, 1f

         mov    3, %o0                  /* SIG_SETMASK */
        ldx     [%i0 + 0x10], %o1
        mov     SYS_sigprocmask, %g1    
98:     t       ST_SYSCALL
        PINSYSCALL(SYS_sigprocmask, 98b)

1:      ldx     [%i0 + 0x00], %fp
        ldx     [%i0 + 0x08], %i7
        mov     1, %i0
        movrnz  %i1, %i1, %i0           ! compute v ? v : 1
        ret
         restore
END_WEAK(siglongjmp)