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 /* GCC is probably the only compiler used on this configuration.  So
  21    get this right even if the code which detects gcc2_compiled. is
  22    still broken.  */
  23
  24 #define BELIEVE_PCC_PROMOTION 1
  25
  26 #include "m68k/tm-m68k.h"
  27
  28 /* Longjmp info comes from the Sun-3 machine description.  Might as well
  29    guess... */
  30
  31 /* Offsets (in target ints) into jmp_buf.  Not defined by Sun, but at least
  32    documented in a comment in <machine/setjmp.h>! */
  33
  34 #define JB_ELEMENT_SIZE 4
  35
  36 #define JB_ONSSTACK 0
  37 #define JB_SIGMASK 1
  38 #define JB_SP 2
  39 #define JB_PC 3
  40 #define JB_PSL 4
  41 #define JB_D2 5
  42 #define JB_D3 6
  43 #define JB_D4 7
  44 #define JB_D5 8
  45 #define JB_D6 9
  46 #define JB_D7 10
  47 #define JB_A2 11
  48 #define JB_A3 12
  49 #define JB_A4 13
  50 #define JB_A5 14
  51 #define JB_A6 15
  52
  53 /* Figure out where the longjmp will land.  Slurp the args out of the stack.
  54    We expect the first arg to be a pointer to the jmp_buf structure from which
  55    we extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
  56    This routine returns true on success */
  57
  58 #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
  59
  60 /* Where is the PC after a call?  */
  61
  62 #ifdef __STDC__
  63 struct frame_info;
  64 #endif
  65
  66 extern CORE_ADDR m68k_saved_pc_after_call PARAMS ((struct frame_info *));
  67
  68 #undef SAVED_PC_AFTER_CALL
  69 #define SAVED_PC_AFTER_CALL(frame) \
  70   m68k_saved_pc_after_call(frame)