gdb/config/m68k/tm-apollo68b.h

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