/* setjmp for Nios II.

   Copyright (C) 1991-2018 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 Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library.  If not, see

   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>

#include <jmpbuf-offsets.h>

	.text

ENTRY(setjmp)

	movi	r5, 1

	br	__sigsetjmp

END(setjmp)

ENTRY(_setjmp)

	mov	r5, zero

	br	__sigsetjmp

END(_setjmp)

libc_hidden_def (_setjmp)

/* Save the current program position in ENV and return 0.  */

ENTRY(__sigsetjmp)

#ifdef	PTR_MANGLE

	PTR_MANGLE_GUARD (r9)

#endif

	stw	r16, (JB_R16*4)(r4)

	stw	r17, (JB_R17*4)(r4)

	stw	r18, (JB_R18*4)(r4)

	stw	r19, (JB_R19*4)(r4)

	stw	r20, (JB_R20*4)(r4)

	stw	r21, (JB_R21*4)(r4)

	stw	r22, (JB_R22*4)(r4)

	stw	fp,  (JB_FP*4)(r4)

#ifdef	PTR_MANGLE

	PTR_MANGLE (r6, ra, r9)

	PTR_MANGLE (r7, sp, r9)

	stw	r6,  (JB_RA*4)(r4)

	stw	r7,  (JB_SP*4)(r4)

#else

	stw	ra,  (JB_RA*4)(r4)

	stw	sp,  (JB_SP*4)(r4)

#endif

#if IS_IN (rtld)

	/* In ld.so we never save the signal mask.  */

	mov r2, zero

	ret

#else

	/* Save the signal mask if requested.  */

#if defined(__PIC__) || defined(PIC)

        nextpc r2

1:	movhi r3, %hiadj(__sigjmp_save - 1b)

	addi r3, r3, %lo(__sigjmp_save - 1b)

	add r2, r2, r3

	jmp r2

#else

	jmpi __sigjmp_save

#endif

#endif

END (__sigsetjmp)

libc_hidden_def (__sigsetjmp)