/* Copyright (C) 2009-2018 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 <signal.h>

#include <stdio.h>

#define __longjmp ____longjmp_chk

#define CHECK_SP(saved_sp, cur_sp, sp_type)				\

  do {									\

    sp_type sp_saved = (sp_type) (saved_sp);				\

    if (sp_saved < (cur_sp))						\

      {									\

	struct __jmp_buf_internal_tag *env_save = env_arg;		\

	int val_save = val_arg;						\

	stack_t ss;							\

	int ret = __sigaltstack (NULL, &ss);				\

	if (ret == 0							\

	    && (!(ss.ss_flags & SS_ONSTACK)				\

		|| ((unsigned sp_type) ((sp_type) (long) ss.ss_sp	\

					+ (sp_type) ss.ss_size		\

					- sp_saved)			\

		    < ss.ss_size)))					\

	  __fortify_fail ("longjmp causes uninitialized stack frame");	\

	asm volatile ("move %0, %1" : "=r" (env) : "r" (env_save));	\

	asm volatile ("move %0, %1" : "=r" (val) : "r" (val_save));	\

      }									\

  } while (0)

#include <__longjmp.c>