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