22 lines
		
	
	
	
		
			275 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
	
		
			275 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
.globl	_vfork
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.set	vfork,66
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.align	1
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_vfork:
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	.word	0x0000
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	movl	16(fp),r2
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	movab	1f,16(fp)	# dirty. Only one process can do return,
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				# so do it before forking
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	ret
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1:
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	chmk	$vfork
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	bcs	3f
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	tstl	r1
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	beql	1f
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	clrl	r0
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1:
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	jmp	(r2)
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3:
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	movl	r0,_errno
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	mnegl	$1,r0
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	jmp	(r2)
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