gdb/config/m68k/tm-m68k-em.h

   1 /* Target machine parameters for embedded m68k with 6888x float, for GDB.
   2    Copyright 1986, 1987, 1989, 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #include "m68k/tm-m68k.h"
  21
  22 /* Longjmp info comes from the Sun-3 machine description.  Might as well
  23    guess... */
  24
  25 /* Offsets (in target ints) into jmp_buf.  Not defined by Sun, but at least
  26    documented in a comment in <machine/setjmp.h>! */
  27
  28 #define JB_ELEMENT_SIZE 4
  29
  30 #define JB_ONSSTACK 0
  31 #define JB_SIGMASK 1
  32 #define JB_SP 2
  33 #define JB_PC 3
  34 #define JB_PSL 4
  35 #define JB_D2 5
  36 #define JB_D3 6
  37 #define JB_D4 7
  38 #define JB_D5 8
  39 #define JB_D6 9
  40 #define JB_D7 10
  41 #define JB_A2 11
  42 #define JB_A3 12
  43 #define JB_A4 13
  44 #define JB_A5 14
  45 #define JB_A6 15
  46
  47 /* Figure out where the longjmp will land.  Slurp the args out of the stack.
  48    We expect the first arg to be a pointer to the jmp_buf structure from which
  49    we extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
  50    This routine returns true on success */
  51
  52 #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
  53
  54 /* Where is the PC after a call?  */
  55
  56 #ifdef __STDC__
  57 struct frame_info;
  58 #endif
  59
  60 extern CORE_ADDR m68k_saved_pc_after_call PARAMS ((struct frame_info *));
  61
  62 #undef SAVED_PC_AFTER_CALL
  63 #define SAVED_PC_AFTER_CALL(frame) \
  64   m68k_saved_pc_after_call(frame)