sysdeps/unix/sysv/linux/ia64/bits/setjmp.h

   1 /* Define the machine-dependent type `jmp_buf'.  Linux/IA-64 version.
   2    Copyright (C) 1999, 2000, 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #ifndef _BITS_SETJMP_H
  22 #define _BITS_SETJMP_H  1
  23
  24 #if !defined _SETJMP_H && !defined _PTHREAD_H
  25 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  26 #endif
  27
  28 /* User code must not depend on the internal representation of jmp_buf. */
  29
  30 #define _JBLEN  70
  31
  32 /* the __jmp_buf element type should be __float80 per ABI... */
  33 typedef long __jmp_buf[_JBLEN] __attribute__ ((aligned (16))); /* guarantees 128-bit alignment! */
  34
  35 /* Test if longjmp to JMPBUF would unwind the frame containing a local
  36    variable at ADDRESS.  */
  37 #define _JMPBUF_UNWINDS(_jmpbuf, _address)              \
  38      ((void *)(_address) < (void *)(((long *)_jmpbuf)[0]))
  39
  40 #endif  /* bits/setjmp.h */