xref: /freebsd/lib/csu/aarch64/crt1_s.S (revision 3c4ba5f55438f7afd4f4b0b56f88f2bb505fd6a6)
1/* LINTLIBRARY */
2/*-
3 * Copyright 1996-1998 John D. Polstra.
4 * Copyright 2014 Andrew Turner.
5 * Copyright 2014-2015 The FreeBSD Foundation.
6 * All rights reserved.
7 *
8 * Portions of this software were developed by Andrew Turner
9 * under sponsorship from the FreeBSD Foundation.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <machine/asm.h>
33__FBSDID("$FreeBSD$");
34
35ENTRY(_start)
36	mov	x3, x2		/* cleanup */
37	add	x1, x0, #8	/* load argv */
38	ldr	x0, [x0]	/* load argc */
39	add	x2, x1, x0, lsl #3 /* env is after argv */
40	add	x2, x2, #8	/* argv is null terminated */
41	b	 __start
42END(_start)
43
44	.section .note.GNU-stack,"",@progbits
45