sysdeps/cris/bits/setjmp.h

   1 /* Copyright (C) 1997, 1998, 2005 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', CRIS version.  */
  20
  21 /* Note that saving and restoring CCR has no meaning in user mode, so we
  22    don't actually do it; the slot is now reserved.
  23
  24    jmp_buf[0] - PC
  25    jmp_buf[1] - SP (R14)
  26    jmp_buf[2] - R13
  27    jmp_buf[3] - R12
  28    jmp_buf[4] - R11
  29    jmp_buf[5] - R10
  30    jmp_buf[6] - R9
  31    jmp_buf[7] - R8
  32    jmp_buf[8] - R7
  33    jmp_buf[9] - R6
  34    jmp_buf[10] - R5
  35    jmp_buf[11] - R4
  36    jmp_buf[12] - R3
  37    jmp_buf[13] - R2
  38    jmp_buf[14] - R1
  39    jmp_buf[15] - R0
  40    jmp_buf[16] - SRP
  41    jmp_buf[17] - CCR  */
  42
  43 #ifndef _ASM
  44 typedef unsigned long int __jmp_buf[18];
  45 #endif
  46
  47 #if     defined (__USE_MISC) || defined (_ASM)
  48 #define JB_SP 1
  49 #endif
  50
  51 /* Test if longjmp to JMPBUF would unwind the frame
  52    containing a local variable at ADDRESS.  */
  53 #define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
  54   ((unsigned long int) (address) < demangle ((jmpbuf)[JB_SP]))