1/*
2 * Copyright (c) 2011 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24
25
26#ifdef __i386__
27
28    .align 2
29    .globl _start
30    .private_extern _start
31_start:
32	nop		# <rdar://problem/10753356> backtraces of LC_MAIN binaries don't end in "start"
33Lstart:
34	movl	%eax,(%esp)	    # pass result from main() to exit()
35	call	_exit
36	hlt
37
38#endif /* __i386__ */
39
40
41#if __x86_64__
42
43    .align 2
44    .globl _start
45    .private_extern _start
46_start:
47	nop		# <rdar://problem/10753356> backtraces of LC_MAIN binaries don't end in "start"
48Lstart:
49	movl	%eax,%edi	    # pass result from main() to exit()
50	call	_exit
51	hlt
52
53#endif
54
55
56#if __arm__
57
58    .align 2
59	.code	16
60    .globl _start
61    .private_extern _start
62	.thumb_func	_start
63_start:
64	nop					// <rdar://problem/10753356> backtraces of LC_MAIN binaries don't end in "start"
65Lstart:
66	bl	_exit			// result in r0 already in param reg r0
67	trap
68
69#endif /* __arm__ */
70
71
72#if __arm64__
73
74    .align 2
75    .globl _start
76    .private_extern _start
77_start:
78	nop
79Lstart:
80	bl	_exit			// result in x0 already in param reg x0
81	brk	#3
82
83#endif /* __arm64__ */
84
85	.subsections_via_symbols
86
87