gdb/config/m68k/tm-apollo68b.h

   1 /* Parameters for execution on Apollo 68k running BSD.
   2    Copyright 1986, 1987, 1989, 1991, 1993, 1994, 1998
   3    Free Software Foundation, Inc.
   4    Contributed by Cygnus Support.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 /* Apollos use vector 0xb for the breakpoint vector */
  24
  25 #define BPT_VECTOR 0xb
  26
  27 #include "m68k/tm-m68k.h"
  28
  29 #define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe)
  30
  31 /* These are the jmp_buf registers I could guess. There are 13 registers
  32  * in the buffer. There are 8 data registers, 6 general address registers,
  33  * the Frame Pointer, the Stack Pointer, the PC and the SR in the chip. I would
  34  * guess that 12 is the SR, but we don't need that anyway. 0 and 1 have
  35  * me stumped. 4 appears to be a5 for some unknown reason. If you care
  36  * about this, disassemble setjmp to find out. But don't do it with gdb :)
  37  */
  38
  39 #undef JB_SP
  40 #undef JB_FP
  41 #undef JB_PC
  42 #undef JB_D0
  43 #undef JB_D1
  44 #undef JB_D2
  45 #undef JB_D3
  46 #undef JB_D4
  47 #undef JB_D5
  48
  49 #define JB_SP 2
  50 #define JB_FP 3
  51 #define JB_PC 5
  52 #define JB_D0 6
  53 #define JB_D1 7
  54 #define JB_D2 8
  55 #define JB_D3 9
  56 #define JB_D4 10
  57 #define JB_D5 11
  58
  59 /* How to decide if we're in a shared library function.  (Probably a wrong
  60    definintion inherited from the VxWorks config file).  */
  61 #define IN_SOLIB_CALL_TRAMPOLINE(pc, name) (name && strcmp(name, "<end_of_program>") == 0)