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[thirdparty/glibc.git] / ports / sysdeps / aarch64 / setjmp.S

/* Copyright (C) 1997-2014 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 <jmpbuf-offsets.h>

        /* Keep traditional entry points in with sigsetjmp(). */
ENTRY (setjmp)
	mov	x1, #1
	b	1f
END (setjmp)

ENTRY (_setjmp)
	mov	x1, #0
	b	1f
END (_setjmp)
libc_hidden_def (_setjmp)

ENTRY (__sigsetjmp)

1:
	stp	x19, x20, [x0, #JB_X19<<3]
	stp	x21, x22, [x0, #JB_X21<<3]
	stp	x23, x24, [x0, #JB_X23<<3]
	stp	x25, x26, [x0, #JB_X25<<3]
	stp	x27, x28, [x0, #JB_X27<<3]
	stp	x29, x30, [x0, #JB_X29<<3]
	stp	 d8,  d9, [x0, #JB_D8<<3]
	stp	d10, d11, [x0, #JB_D10<<3]
	stp	d12, d13, [x0, #JB_D12<<3]
	stp	d14, d15, [x0, #JB_D14<<3]
	mov	x2,  sp
	str	x2,  [x0, #JB_SP<<3]
#if defined NOT_IN_libc && defined IS_IN_rtld
	/* In ld.so we never save the signal mask */
	mov	w0, #0
	RET
#else
	b	C_SYMBOL_NAME(__sigjmp_save)
#endif
END (__sigsetjmp)
hidden_def (__sigsetjmp)