sysdeps/mips/bits/setjmp.h

   1 /* Define the machine-dependent type `jmp_buf'.  MIPS version.
   2    Copyright (C) 1992, 1993, 1995, 1997, 2000, 2002, 2003, 2004
   3         Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   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 _SETJMP_H
  22 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  23 #endif
  24
  25 #include <sgidefs.h>
  26
  27 typedef struct
  28   {
  29 #if _MIPS_SIM == _ABIO32
  30     /* Program counter.  */
  31     __ptr_t __pc;
  32
  33     /* Stack pointer.  */
  34     __ptr_t __sp;
  35
  36     /* Callee-saved registers s0 through s7.  */
  37     int __regs[8];
  38
  39     /* The frame pointer.  */
  40     __ptr_t __fp;
  41
  42     /* The global pointer.  */
  43     __ptr_t __gp;
  44 #else
  45     /* Program counter.  */
  46     __extension__ long long __pc;
  47
  48     /* Stack pointer.  */
  49     __extension__ long long __sp;
  50
  51     /* Callee-saved registers s0 through s7.  */
  52     __extension__ long long __regs[8];
  53
  54     /* The frame pointer.  */
  55     __extension__ long long __fp;
  56
  57     /* The global pointer.  */
  58     __extension__ long long __gp;
  59 #endif
  60
  61     /* Floating point status register.  */
  62     int __fpc_csr;
  63
  64     /* Callee-saved floating point registers.  */
  65 #if _MIPS_SIM == _ABI64
  66     double __fpregs[8];
  67 #else
  68     double __fpregs[6];
  69 #endif
  70   } __jmp_buf[1];
  71
  72 #ifdef __USE_MISC
  73 /* Offset to the program counter in `jmp_buf'.  */
  74 # define JB_PC  0
  75 #endif
  76
  77
  78 /* Test if longjmp to JMPBUF would unwind the frame
  79    containing a local variable at ADDRESS.  */
  80 #define _JMPBUF_UNWINDS(jmpbuf, address) \
  81   ((void *) (address) < (jmpbuf)[0].__sp)