/* Copyright (C) 2003-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.

   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>

#include <stdint.h>

#include <unwind.h>

/* Test if longjmp to JMPBUF would unwind the frame containing a local

   variable at ADDRESS.  */

#define _JMPBUF_UNWINDS(_jmpbuf, _address, _demangle) \

  ((void *) (_address) < (void *) (((long int *) _jmpbuf)[0]))

#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \

  ({ uintptr_t _cfa = (uintptr_t) _Unwind_GetCFA (_context) - (_adj);	\

     (_cfa < (uintptr_t)(((long *)(_jmpbuf))[0]) - (_adj)		\

      || (_cfa == (uintptr_t)(((long *)(_jmpbuf))[0]) - (_adj)		\

	  && (uintptr_t) _Unwind_GetBSP (_context) - (_adj)		\

	     >= (uintptr_t)(((long *)(_jmpbuf))[17]) - (_adj)));	\

  })

#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \

  ((uintptr_t)(_address) - (_adj) < (uintptr_t)(((long *)_jmpbuf)[0]) - (_adj))

/* We use a longjmp() which can cross from the alternate signal-stack

   to the normal stack.  */

extern void __libc_unwind_longjmp (sigjmp_buf env, int val)

          __attribute__ ((noreturn));

hidden_proto (__libc_unwind_longjmp)