src/start_glue.s

/*
 * Copyright (c) 2011 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */


#ifdef __i386__

    .align 2
    .globl _start
    .private_extern _start
_start:
	nop		# <rdar://problem/10753356> backtraces of LC_MAIN binaries don't end in "start"
Lstart:
	movl	%eax,(%esp)	    # pass result from main() to exit()
	call	_exit
	hlt

#endif /* __i386__ */


#if __x86_64__

    .align 2
    .globl _start
    .private_extern _start
_start:
	nop		# <rdar://problem/10753356> backtraces of LC_MAIN binaries don't end in "start"
Lstart:
	movl	%eax,%edi	    # pass result from main() to exit()
	call	_exit
	hlt

#endif


#if __arm__

    .align 2
	.code	16
    .globl _start
    .private_extern _start
	.thumb_func	_start
_start:
	nop					// <rdar://problem/10753356> backtraces of LC_MAIN binaries don't end in "start"
Lstart:
	bl	_exit			// result in r0 already in param reg r0
	trap

#endif /* __arm__ */


#if __arm64__

    .align 2
    .globl _start
    .private_extern _start
_start:
	nop
Lstart:
	bl	_exit			// result in x0 already in param reg x0
	brk	#3

#endif /* __arm64__ */

	.subsections_via_symbols
Commit	Line	Data
	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"
	33	Lstart:
	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"
	48	Lstart:
	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"
	65	Lstart:
	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
	79	Lstart:
	80	bl _exit // result in x0 already in param reg x0
	81	brk #3
	82
	83	#endif /* __arm64__ */
	84
	85	.subsections_via_symbols
	86