gdb/config/i386/tm-go32.h

   1 /* Target-dependent definitions for Intel x86 running DJGPP.
   2    Copyright 1995, 1996, 1997, 1999, 2000 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., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef TM_GO32_H
  22 #define TM_GO32_H
  23
  24 #undef HAVE_SSE_REGS    /* FIXME! go32-nat.c needs to support XMMi registers */
  25 #define HAVE_I387_REGS
  26
  27 #include "i386/tm-i386.h"
  28
  29 /* FRAME_CHAIN takes a frame's nominal address and produces the frame's
  30    chain-pointer.
  31    In the case of the i386, the frame's nominal address
  32    is the address of a 4-byte word containing the calling frame's address.
  33    DJGPP doesn't have any special frames for signal handlers, they are
  34    just normal C functions. */
  35 #undef  FRAME_CHAIN
  36 #define FRAME_CHAIN(thisframe) \
  37   (!inside_entry_file ((thisframe)->pc) ? \
  38    read_memory_integer ((thisframe)->frame, 4) :\
  39    0)
  40
  41 /* A macro that tells us whether the function invocation represented
  42    by FI does not have a frame on the stack associated with it.  If it
  43    does not, FRAMELESS is set to 1, else 0.  */
  44 #undef  FRAMELESS_FUNCTION_INVOCATION
  45 #define FRAMELESS_FUNCTION_INVOCATION(FI) \
  46      (frameless_look_for_prologue(FI))
  47
  48 #undef  FRAME_SAVED_PC
  49 #define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4))
  50
  51 #endif /* TM_GO32_H */