/* Copyright (C) 1991-2018 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 <setjmp.h>

/* Save the current program position in ENV and return 0.  */

int

#if defined BSD_SETJMP

# undef setjmp

# define savemask 1

setjmp (jmp_buf env)

#elif defined BSD__SETJMP

# undef _setjmp

# define savemask 0

_setjmp (jmp_buf env)

#else

__sigsetjmp (jmp_buf env, int savemask)

#endif

{

  /* Save data registers D1 through D7.  */

  asm volatile ("movem%.l %/d1-%/d7, %0"

		: : "m" (env[0].__jmpbuf[0].__dregs[0]));

  /* Save return address in place of register A0.  */

  env[0].__jmpbuf[0].__aregs[0] = __builtin_return_address (0);

  /* Save address registers A1 through A5.  */

  asm volatile ("movem%.l %/a1-%/a5, %0"

		: : "m" (env[0].__jmpbuf[0].__aregs[1]));

  /* Save caller's FP, not our own.  */

  env[0].__jmpbuf[0].__fp = *(int **) __builtin_frame_address (0);

  /* Save caller's SP, not our own.  */

  env[0].__jmpbuf[0].__sp = (int *) __builtin_frame_address (0) + 2;

#if defined __HAVE_68881__ || defined __HAVE_FPU__

  /* Save floating-point (68881) registers FP0 through FP7.  */

  asm volatile ("fmovem%.x %/fp0-%/fp7, %0"

		: : "m" (env[0].__jmpbuf[0].__fpregs[0]));

#elif defined (__mcffpu__)

  asm volatile ("fmovem %/fp0-%/fp7, %0"

		: : "m" (env[0].__jmpbuf[0].__fpregs[0]));

#endif

#if IS_IN (rtld)

  /* In ld.so we never save the signal mask.  */

  return 0;

#else

  /* Save the signal mask if requested.  */

  return __sigjmp_save (env, savemask);

#endif

}

#if !defined BSD_SETJMP && !defined BSD__SETJMP

libc_hidden_def (__sigsetjmp)

#endif