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			65 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			65 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
/* Copyright (C) 1997-2015 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Richard Henderson (rth@tamu.edu).
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <sysdep.h>
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#include "ucontext_i.h"
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/* int getcontext(ucontext_t *); */
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ENTRY(__getcontext)
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	ldx	[%o0 + UC_LINK], %o1	/* Preserve uc_link field, the
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					   trap clears it.  */
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	ta	0x6e
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1:
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	ldx	[%o0 + UC_M_PC], %o2
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	ldx	[%o0 + UC_M_NPC], %o3
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	ldx	[%o0 + __UC_SIGMASK], %o4
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	stx	%o1, [%o0 + UC_LINK]
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	add	%o2, 2f - 1b, %o2
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	stx	%o2, [%o0 + UC_M_PC]
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	add	%o3, 2f - 1b, %o3
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	stx	%o3, [%o0 + UC_M_NPC]
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#if SIGMASK_WORDS == 16
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	stx	%o4, [%o0 + UC_SIGMASK]
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	stx	%g0, [%o0 + UC_SIGMASK + 8]
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	stx	%g0, [%o0 + UC_SIGMASK + 16]
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	stx	%g0, [%o0 + UC_SIGMASK + 24]
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	stx	%g0, [%o0 + UC_SIGMASK + 32]
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	stx	%g0, [%o0 + UC_SIGMASK + 40]
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	stx	%g0, [%o0 + UC_SIGMASK + 48]
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	stx	%g0, [%o0 + UC_SIGMASK + 56]
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	stx	%g0, [%o0 + UC_SIGMASK + 64]
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	stx	%g0, [%o0 + UC_SIGMASK + 72]
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	stx	%g0, [%o0 + UC_SIGMASK + 80]
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	stx	%g0, [%o0 + UC_SIGMASK + 88]
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	stx	%g0, [%o0 + UC_SIGMASK + 96]
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	stx	%g0, [%o0 + UC_SIGMASK + 104]
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	stx	%g0, [%o0 + UC_SIGMASK + 112]
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	stx	%g0, [%o0 + UC_SIGMASK + 120]
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#else
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# error Adjust __getcontext
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#endif
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2:
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	retl
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	 clr	%o0
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END(__getcontext)
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weak_alias (__getcontext, getcontext)
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