/* Special .init and .fini section support for Alpha.

   Copyright (C) 2001-2018 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.

   This differs from what would be generated for ordinary code in that

   we save and restore the GP within the function.  In order for linker

   relaxation to work, the value in the GP register on exit from a function

   must be valid for the function entry point.  Normally, a function is

   contained within one object file and this is not an issue, provided

   that the function reloads the gp after making any function calls.

   However, _init and _fini are constructed from pieces of many object

   files, all of which may have different GP values.  So we must reload

   the GP value from crti.o in crtn.o.  */

#include <libc-symbols.h>

#include <sysdep.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

	.globl	_init

	.hidden	_init

	.type	_init, @function

	.usepv	_init, std

_init:

	ldgp	$29, 0($27)

	subq	$30, 16, $30

#if PREINIT_FUNCTION_WEAK

	lda	$27, PREINIT_FUNCTION

#endif

	stq	$26, 0($30)

	stq	$29, 8($30)

#if PREINIT_FUNCTION_WEAK

	beq	$27, 1f

	jsr	$26, ($27), PREINIT_FUNCTION

	ldq	$29, 8($30)

1:

#else

	bsr	$26, PREINIT_FUNCTION !samegp

#endif

	.p2align 3

	.section .fini, "ax", @progbits

	.globl	_fini

	.hidden	_fini

	.type	_fini,@function

	.usepv	_fini,std

_fini:

	ldgp	$29, 0($27)

	subq	$30, 16, $30

	stq	$26, 0($30)

	stq	$29, 8($30)

	.p2align 3