gdb/tm-amix.h

   1 /* Macro definitions for GDB on a Commodore Amiga running SVR4 (amix).
   2    Copyright (C) 1991, Free Software Foundation, Inc.
   3    Written by Fred Fish at Cygnus Support (fnf@cygint)
   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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 /* All Amiga's (so far) running UNIX have come standard with the floating
  22    point coprocessor. */
  23
  24 #define HAVE_68881      /* Amiga has floating point coprocessor */
  25
  26 /* Sequence of bytes for breakpoint instruction.
  27    This is a TRAP instruction.  The last 4 bits (0x1 below) is the
  28    vector. */
  29
  30 #define BREAKPOINT {0x4e, 0x41 }        /* Trap using vector 0x1 */
  31
  32 /* How much to decrement the PC after a trap.  Depends on kernel. */
  33
  34 #define DECR_PC_AFTER_BREAK 0           /* No decrement required */
  35
  36
  37 #include "tm-68k.h"
  38 #include "tm-svr4.h"
  39
  40 /* Address of end of stack space. (actually one byte past it).
  41    This value is typically very OS dependent.
  42    FIXME:  Check to see if SVR4 offers some machine independent way
  43    of discovering this value and use it if so, and if we need it. */
  44
  45 /* #define STACK_END_ADDR 0xc0800000 */
  46
  47 /* Use the alternate method of avoiding running up off the end of
  48    the frame chain or following frames back into the startup code.
  49    See the comments in blockframe.c */
  50
  51 #undef FRAME_CHAIN_VALID
  52 #define FRAME_CHAIN_VALID(chain, thisframe)     \
  53   (chain != 0                                   \
  54    && !(inside_main_scope ((thisframe)->pc))    \
  55    && !(inside_entry_scope ((thisframe)->pc)))
  56