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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/m68k/kernel/entry.S
..
..
@@ -69,6 +69,13 @@
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 	lea     %sp@(24),%sp
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 	rts
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+ENTRY(__sys_clone3)
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+	SAVE_SWITCH_STACK
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+	pea	%sp@(SWITCH_STACK_SIZE)
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+	jbsr	m68k_clone3
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+	lea	%sp@(28),%sp
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+	rts
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+
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 ENTRY(sys_sigreturn)
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 	SAVE_SWITCH_STACK
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 	movel	%sp,%sp@-		  | switch_stack pointer
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@@ -160,9 +167,12 @@
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 	jbsr	syscall_trace
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 	RESTORE_SWITCH_STACK
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 	addql	#4,%sp
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+	addql	#1,%d0			| optimization for cmpil #-1,%d0
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+	jeq	ret_from_syscall
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 	movel	%sp@(PT_OFF_ORIG_D0),%d0
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 	cmpl	#NR_syscalls,%d0
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 	jcs	syscall
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+	jra	ret_from_syscall
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 badsys:
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 	movel	#-ENOSYS,%sp@(PT_OFF_D0)
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 	jra	ret_from_syscall