sysdeps/arm/fpu/bits/setjmp.h

   1 /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /* Define the machine-dependent type `jmp_buf'.  ARM version. */
  20
  21 #ifndef _SETJMP_H
  22 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  23 #endif
  24
  25 #ifndef _ASM
  26 /* Jump buffer contains v1-v6, sl, fp, sp and pc.  Other registers are not
  27    saved.  */
  28 typedef int __jmp_buf[22];
  29 #endif
  30
  31 #define __JMP_BUF_SP            20
  32
  33 /* Test if longjmp to JMPBUF would unwind the frame
  34    containing a local variable at ADDRESS.  */
  35 #define _JMPBUF_UNWINDS(jmpbuf, address) \
  36   ((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))