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

   1 /* Copyright (C) 1997,1999,2000,2003 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 #ifndef _BITS_SETJMP_H
  20 #define _BITS_SETJMP_H  1
  21
  22 #if !defined _SETJMP_H && !defined _PTHREAD_H
  23 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  24 #endif
  25
  26 #include <bits/wordsize.h>
  27
  28 #if __WORDSIZE == 64
  29
  30 #ifndef _ASM
  31 typedef struct __sparc64_jmp_buf
  32   {
  33     struct __sparc64_jmp_buf    *uc_link;
  34     unsigned long               uc_flags;
  35     unsigned long               uc_sigmask;
  36     struct __sparc64_jmp_buf_mcontext
  37       {
  38         unsigned long           mc_gregs[19];
  39         unsigned long           mc_fp;
  40         unsigned long           mc_i7;
  41         struct __sparc64_jmp_buf_fpu
  42           {
  43             union
  44               {
  45                 unsigned int    sregs[32];
  46                 unsigned long   dregs[32];
  47                 long double     qregs[16];
  48               }                 mcfpu_fpregs;
  49             unsigned long       mcfpu_fprs;
  50             unsigned long       mcfpu_gsr;
  51             void                *mcfpu_fq;
  52             unsigned char       mcfpu_qcnt;
  53             unsigned char       mcfpu_qentsz;
  54             unsigned char       mcfpu_enab;
  55           }                     mc_fpregs;
  56       }                         uc_mcontext;
  57   } __jmp_buf[1];
  58 #endif
  59
  60 /* Test if longjmp to JMPBUF would unwind the frame
  61    containing a local variable at ADDRESS.  */
  62 #define _JMPBUF_UNWINDS(jmpbuf, address) \
  63   ((unsigned long int) (address) < (jmpbuf)->uc_mcontext.mc_fp)
  64
  65 #else
  66
  67 #if defined __USE_MISC || defined _ASM
  68 # define JB_SP  0
  69 # define JB_FP  1
  70 # define JB_PC  2
  71 #endif
  72
  73 #ifndef _ASM
  74 typedef int __jmp_buf[3];
  75 #endif
  76
  77 /* Test if longjmp to JMPBUF would unwind the frame
  78    containing a local variable at ADDRESS.  */
  79 #define _JMPBUF_UNWINDS(jmpbuf, address) \
  80   ((int) (address) < (jmpbuf)[JB_SP])
  81
  82 #endif
  83
  84 #endif  /* bits/setjmp.h */