gdb/config/i386/tm-i386bsd.h

   1 /* Macro definitions for i386 running under BSD Unix.
   2    Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program 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
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef TM_I386BSD_H
  22 #define TM_I386BSD_H 1
  23
  24 #include "i386/tm-i386.h"
  25
  26 /* 386BSD cannot handle the segment registers. */
  27 /* BSDI can't handle them either.  */
  28
  29 #undef NUM_REGS
  30 #define NUM_REGS 10
  31
  32 /* On 386 bsd, sigtramp is above the user stack and immediately below
  33    the user area. Using constants here allows for cross debugging.
  34    These are tested for BSDI but should work on 386BSD.  */
  35
  36 #define SIGTRAMP_START(pc)      0xfdbfdfc0
  37 #define SIGTRAMP_END(pc)        0xfdbfe000
  38
  39 /* Saved Pc.  Get it from sigcontext if within sigtramp.  */
  40
  41 /* Offset to saved PC in sigcontext, from <sys/signal.h>.  */
  42 #define SIGCONTEXT_PC_OFFSET 20
  43
  44 #endif /* ifndef TM_I386BSD_H */