/*      $NetBSD: sigsetjmp.S,v 1.12 2013/09/14 05:38:00 nakayama Exp $  */
/*
 * Copyright (c) 1995 Paul Kranenburg
 * All rights reserved.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Paul Kranenburg.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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"

/*
 * We use the sc_npc field inside the sigcontext to store the save mask
 */
#define MASK_OFFSET     0x68

#if __PIC__ - 0 >= 2
        
ENTRY(__sigsetjmp14)
        PIC_PROLOGUE(%g1,%o2)           ! %g1 = _GLOBAL_OFFSET_TABLE
        st      %o1,[%o0+MASK_OFFSET]   ! end of jmpbuf
        sethi   %hi(_C_LABEL(__setjmp14)), %o2
        sethi   %hi(_C_LABEL(_setjmp)), %o3
        or      %o2, %lo(_C_LABEL(__setjmp14)), %o2
        or      %o3, %lo(_C_LABEL(_setjmp)), %o3
        brz     %o1, 1f 
         ldx    [%g1+%o3], %o3          ! if (%o1 == 0) goto _setjmp;
        ldx     [%g1+%o2], %o3          ! else goto __setjmp;
1:
        jmp     %o3
         nop
        
ENTRY(__siglongjmp14)
        PIC_PROLOGUE(%g1,%o2)           ! %g1 = _GLOBAL_OFFSET_TABLE
        ld      [%o0+MASK_OFFSET], %o2  ! end of jmpbuf
        sethi   %hi(_C_LABEL(__longjmp14)), %o3 
        sethi   %hi(_C_LABEL(_longjmp)), %o4
        or      %o3, %lo(_C_LABEL(__longjmp14)), %o3
        or      %o4, %lo(_C_LABEL(_longjmp)), %o4
        brz,a   %o2, 1f 
         ldx    [%g1+%o4], %o4          ! if (%o2 == 0) goto _longjmp;
        ldx     [%g1+%o3], %o4          ! else goto __longjmp;
1:
        jmp     %o4     
         nop
        unimp 0

#elif __PIC__ - 0 >= 1

ENTRY(__sigsetjmp14)
        PIC_PROLOGUE(%g1,%o2)                   ! %g1 = _GLOBAL_OFFSET_TABLE
        cmp     %o1,0
        st      %o1,[%o0+MASK_OFFSET]           ! end of jmpbuf
        bne,a   1f
         ldx    [%g1+_C_LABEL(__setjmp14)], %g1 ! if (%o1 != 0) goto __setjmp;
        ldx     [%g1+_C_LABEL(_setjmp)], %g1    ! else goto _setjmp;
1:
        jmp %g1
         nop

ENTRY(__siglongjmp14)
        PIC_PROLOGUE(%g1,%o2)                   ! %g1 = _GLOBAL_OFFSET_TABLE
        ld      [%o0+MASK_OFFSET],%o2           ! end of jmpbuf
        cmp     %o2,0
        bne,a   1f
         ldx    [%g1+_C_LABEL(__longjmp14)], %g1 ! if (%o2 != 0) goto __longjmp;
        ldx     [%g1+_C_LABEL(_longjmp)], %g1   ! else goto _longjmp;
1:
        jmp %g1
         nop
        unimp 0

#else /* !__PIC__ */

ENTRY(__sigsetjmp14)
        cmp     %o1,0
        be      _C_LABEL(_setjmp)
         st     %o1,[%o0+MASK_OFFSET]   ! end of jmpbuf
        ba,a    _C_LABEL(__setjmp14)
        unimp 0

ENTRY(__siglongjmp14)
        ld      [%o0+MASK_OFFSET],%g1
        cmp     %g1,0
        be      _C_LABEL(_longjmp)
         nop
        ba,a    _C_LABEL(__longjmp14)
        unimp 0

#endif /* !__PIC__ */