/* Special .init and .fini section support for Nios II.

   Copyright (C) 2012-2018 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.

   In addition to the permissions in the GNU Lesser General Public

   License, the Free Software Foundation gives you unlimited

   permission to link the compiled version of this file with other

   programs, and to distribute those programs without any restriction

   coming from the use of this file. (The GNU Lesser General Public

   License restrictions do apply in other respects; for example, they

   cover modification of the file, and distribution when not linked

   into another program.)

   Note that people who make modified versions of this file are not

   obligated to grant this special exception for their modified

   versions; it is their choice whether to do so. The GNU Lesser

   General Public License gives permission to release a modified

   version without this exception; this exception also makes it

   possible to release a modified version which carries forward this

   exception.

   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/>.  */

/* crti.S puts a function prologue at the beginning of the .init and

   .fini sections and defines global symbols for those addresses, so

   they can be called as functions.  The symbols _init and _fini are

   magic and cause the linker to emit DT_INIT and DT_FINI.  */

#include <libc-symbols.h>

#ifndef PREINIT_FUNCTION

# define PREINIT_FUNCTION __gmon_start__

#endif

#ifndef PREINIT_FUNCTION_WEAK

# define PREINIT_FUNCTION_WEAK 1

#endif

#if PREINIT_FUNCTION_WEAK

	weak_extern (PREINIT_FUNCTION)

#else

	.hidden PREINIT_FUNCTION

#endif

	.section .init,"ax",@progbits

	.align	2

	.global	_init

	.hidden	_init

	.type	_init, @function

_init:

	addi	sp, sp, -8

	stw	r22, 0(sp)

	nextpc	r22

	1:

	movhi	r8, %hiadj(_gp_got - 1b)

	addi	r8, r8, %lo(_gp_got - 1b)

	add	r22, r22, r8

	stw	ra, 4(sp)

#if PREINIT_FUNCTION_WEAK

	movhi	r2, %got_hiadj(PREINIT_FUNCTION)

	addi	r2, r2, %got_lo(PREINIT_FUNCTION)

	add	r2, r2, r22

	ldw	r2, 0(r2)

	beq	r2, zero, .L5

#endif

	movhi	r2, %call_hiadj(PREINIT_FUNCTION)

	addi	r2, r2, %call_lo(PREINIT_FUNCTION)

	add	r2, r2, r22

	ldw	r2, 0(r2)

	callr	r2

.L5:

	.section .fini,"ax",@progbits

	.align	2

	.global	_fini

	.hidden	_fini

	.type	_fini, @function

_fini:

	addi	sp, sp, -8

	stw	r22, 0(sp)

	nextpc	r22

	1:

	movhi	r8, %hiadj(_gp_got - 1b)

	addi	r8, r8, %lo(_gp_got - 1b)

	stw	ra, 4(sp)

	add	r22, r22, r8