/* Special .init and .fini section support for x86.

   Copyright (C) 1995-2018 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>

#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

	.p2align 2

	.globl _init

	.hidden	_init

	.type _init, @function

_init:

	_CET_ENDBR

	pushl %ebx

	/* Maintain 16-byte stack alignment for called functions.  */

	subl $8, %esp

	LOAD_PIC_REG (bx)

#if PREINIT_FUNCTION_WEAK

	movl PREINIT_FUNCTION@GOT(%ebx), %eax

	testl %eax, %eax

	je .Lno_weak_fn

	call *%eax

.Lno_weak_fn:

#else

	call PREINIT_FUNCTION

#endif

	.section .fini,"ax",@progbits

	.p2align 2

	.globl _fini

	.hidden	_fini

	.type _fini, @function

_fini:

	_CET_ENDBR

	pushl %ebx

	subl $8, %esp

	LOAD_PIC_REG (bx)