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/*
 * libc/sysdeps/linux/microblaze/setjmp.S -- `setjmp' for microblaze
 *
 *  Copyright (C) 2003       John Williams <jwilliams@itee.uq.edu.au>
 *  Copyright (C) 2001,2002  NEC Corporation
 *  Copyright (C) 2001,2002  Miles Bader <miles@gnu.org>
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License.  See the file COPYING.LIB in the main
 * directory of this archive for more details.
 * 
 * Written by Miles Bader <miles@gnu.org>
 */

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

#include <clinkage.h>

        .text
C_ENTRY(setjmp):
        addi    r6, r0, 1                       /* Save the signal mask.  */
        braid   C_SYMBOL_NAME(__sigsetjmp)
        nop

        .globl C_SYMBOL_NAME(_setjmp)
C_SYMBOL_NAME(_setjmp):
        add     r6, r0, r0                      /* Don't save the signal mask.  */

        .globl C_SYMBOL_NAME(__sigsetjmp)
C_SYMBOL_NAME(__sigsetjmp):
        /* Save registers relative to r5 (arg0)*/
        swi     r1, r5, 0                       /* stack pointer */
        swi     r15, r5, 4                      /* link register */
        swi     r18, r5, 8                      /* assembler temp */
        swi     r19, r5, 12                     /* now call-preserved regs */
        swi     r20, r5, 16
        swi     r21, r5, 20
        swi     r22, r5, 24
        swi     r23, r5, 28
        swi     r24, r5, 32
        swi     r25, r5, 36
        swi     r26, r5, 40
        swi     r27, r5, 44
        swi     r28, r5, 48
        swi     r29, r5, 52
        swi     r30, r5, 56

        /* Make a tail call to __sigjmp_save; it takes the same args.  */
        braid   C_SYMBOL_NAME(__sigjmp_save)
        nop
C_END(setjmp)