/* Save current context.

   Copyright (C) 2012-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>

#include "ucontext_i.h"

ENTRY(__getcontext)

	/* Load address of the context data structure.  */

	move.l	4(%sp), %a0

	/* Save the preserved registers and the return address.  */

	movem.l	%d2-%d7, oGREGS+2*4(%a0)

	movem.l	%a2-%a6, oGREGS+10*4(%a0)

	lea	4(%sp), %a1

	move.l	%a1, oSP(%a0)

	move.l	(%sp), oPC(%a0)

	fmovem.l %fpsr/%fpcr/%fpiar, oFPREGS(%a0)

	fmovem.x %fp2-%fp7, oFP2(%a0)

	cfi_def_cfa (%a0, 0)

	cfi_offset (%d2, oGREGS+2*4)

	cfi_offset (%d3, oGREGS+3*4)

	cfi_offset (%pc, oPC)

	/* Save the current signal mask.  */

	lea	oSIGMASK(%a0), %a1

	move.l	%a1, %d3

	clr.l	%d2

	move.l	#SIG_SETMASK, %d1

	move.l	#__NR_sigprocmask, %d0

	trap	#0

	/* Restore registers.  */

	move.l	oGREGS+2*4(%a0), %d2

	cfi_restore (%d2)

	move.l	oGREGS+3*4(%a0), %d3

	cfi_restore (%d3)

	cfi_def_cfa (%sp, 4)

	cfi_offset (%pc, -4)

	cmp.l	#-4095, %d0		/* Check %d0 for error.  */

	jcc	SYSCALL_ERROR_LABEL	/* Jump to error handler.  */

0:	/* All done, return 0 for success.  */

	clr.l	%d0

	rts

PSEUDO_END(__getcontext)

weak_alias (__getcontext, getcontext)