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1 /*

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 */

26 #ifdef __i386__

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"

33 Lstart:

34 movl %eax,(%esp) # pass result from main() to exit()

35 call _exit

36 hlt

38 #endif /* __i386__ */

41 #if __x86_64__

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"

48 Lstart:

49 movl %eax,%edi # pass result from main() to exit()

50 call _exit

51 hlt

53 #endif

56 #if __arm__

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"

65 Lstart:

66 bl _exit // result in r0 already in param reg r0

67 trap

69 #endif /* __arm__ */

72 #if __arm64__

74 .align 2

75 .globl _start

76 .private_extern _start

77 _start:

78 nop

79 Lstart:

80 bl _exit // result in x0 already in param reg x0

81 brk #3

83 #endif /* __arm64__ */

85 .subsections_via_symbols