Subversion Repositories or1k

/* setjmp for SH-5.
   Copyright (C) 2001 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */


#define _SETJMP_H
#define _ASM
#include <bits/setjmp.h>


#define INTEGER(reg,offset)     st.q    r2, offset*8, reg
#define DOUBLE(reg,offset)      fst.d   r2, offset*8, reg


        .file   "setjmp.S"

        .section .text64,"xa"
        .align 2

        .global __sigsetjmp     
        .type   __sigsetjmp,@function

__sigsetjmp:
        /*
         *      extern int __sigsetjmp(jmp_buf env, int savemask);
         *
         *      r2 == env
         *      r3 == savemask
         *      r4 == temporary
         */

                        /* callee-save registers R10-R16 */
        INTEGER(r10, __SETJMP_INT(0))
        INTEGER(r11, __SETJMP_INT(1))
        INTEGER(r12, __SETJMP_INT(2))
        INTEGER(r13, __SETJMP_INT(3))
        INTEGER(r14, __SETJMP_INT(4))
        INTEGER(r15, __SETJMP_INT(5))
        INTEGER(r16, __SETJMP_INT(6))

                        /* callee-save registers R28-R35 */
        INTEGER(r28, __SETJMP_INT(7))
        INTEGER(r29, __SETJMP_INT(8))
        INTEGER(r30, __SETJMP_INT(9))
        INTEGER(r31, __SETJMP_INT(10))
        INTEGER(r32, __SETJMP_INT(11))
        INTEGER(r33, __SETJMP_INT(12))
        INTEGER(r34, __SETJMP_INT(13))
        INTEGER(r35, __SETJMP_INT(14))

                        /* callee-save registers R44-R59 */
        INTEGER(r44, __SETJMP_INT(15))
        INTEGER(r45, __SETJMP_INT(16))
        INTEGER(r46, __SETJMP_INT(17))
        INTEGER(r47, __SETJMP_INT(18))
        INTEGER(r48, __SETJMP_INT(19))
        INTEGER(r49, __SETJMP_INT(20))
        INTEGER(r50, __SETJMP_INT(21))
        INTEGER(r51, __SETJMP_INT(22))
        INTEGER(r52, __SETJMP_INT(23))
        INTEGER(r53, __SETJMP_INT(24))
        INTEGER(r54, __SETJMP_INT(25))
        INTEGER(r55, __SETJMP_INT(26))
        INTEGER(r56, __SETJMP_INT(27))
        INTEGER(r57, __SETJMP_INT(28))
        INTEGER(r58, __SETJMP_INT(29))
        INTEGER(r59, __SETJMP_INT(30))

        #if __SETJMP_NUM_INT != 31
        #error  __SETJMP_NUM_INT does agree with expected value
        #endif

#if __SETJMP_NUM_DBL > 0
                        /* callee-save registers FR12-FR15 */
        DOUBLE(d12, __SETJMP_DBL(0))
        DOUBLE(d14, __SETJMP_DBL(1))

                        /* callee-save registers FR36-FR63 */
        DOUBLE(d36, __SETJMP_DBL(2))
        DOUBLE(d38, __SETJMP_DBL(3))
        DOUBLE(d40, __SETJMP_DBL(4))
        DOUBLE(d42, __SETJMP_DBL(5))
        DOUBLE(d44, __SETJMP_DBL(6))
        DOUBLE(d46, __SETJMP_DBL(7))
        DOUBLE(d48, __SETJMP_DBL(8))
        DOUBLE(d50, __SETJMP_DBL(9))
        DOUBLE(d52, __SETJMP_DBL(10))
        DOUBLE(d54, __SETJMP_DBL(11))
        DOUBLE(d56, __SETJMP_DBL(12))
        DOUBLE(d58, __SETJMP_DBL(13))
        DOUBLE(d60, __SETJMP_DBL(14))
        DOUBLE(d62, __SETJMP_DBL(15))

        #if __SETJMP_NUM_DBL != 16
        #error  __SETJMP_NUM_DBL does agree with expected value
        #endif

#endif  /* __SETJMP_NUM_DBL > 0 */

                        /* callee-save registers TR5-TR7 */
        gettr   tr5, r4
        INTEGER(r4, __SETJMP_TRG(0))
        gettr   tr6, r4
        INTEGER(r4, __SETJMP_TRG(1))
        gettr   tr7, r4
        INTEGER(r4, __SETJMP_TRG(2))

        #if __SETJMP_NUM_TRG != 3
        #error  __SETJMP_NUM_TRG does agree with expected value
        #endif

                        /* save Linkage Register (LR) for longjmp return */
        INTEGER(r18, __SETJMP_LR)

                        /*
                         *      return a value of zero if call is __sigsetjmp().
                         *      This is so that caller of setjmp() knows
                         *      we have retruned via setjmp, and not via longjmp.
                         *      R0 is the result register.
                         */

        ptabs/l r18, tr0        /* return to caller */
        movi    0, r2   /* return value */
        blink   tr0, r63