gdb/param-no-tm.h

   1 /* Copyright (C) 1990 Free Software Foundation, Inc.
   2
   3 This file is part of GDB.
   4
   5 GDB is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 1, or (at your option)
   8 any later version.
   9
  10 GDB is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with GDB; see the file COPYING.  If not, write to
  17 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  18
  19 #if !defined (PARAM_H)
  20 #define PARAM_H 1
  21
  22 /*  DO NOT #include "tm.h" -- a particular tm file has been inc'd by caller  */
  23
  24 #include "xm.h"
  25
  26 /* TARGET_BYTE_ORDER and HOST_BYTE_ORDER should be defined to one of these.  */
  27 #if !defined (BIG_ENDIAN)
  28 #define BIG_ENDIAN 4321
  29 #endif
  30
  31 #if !defined (LITTLE_ENDIAN)
  32 #define LITTLE_ENDIAN 1234
  33 #endif
  34
  35 /* The bit byte-order has to do just with numbering of bits in
  36    debugging symbols and such.  Conceptually, it's quite separate
  37    from byte/word byte order.  */
  38
  39 #if TARGET_BYTE_ORDER == BIG_ENDIAN
  40 #define BITS_BIG_ENDIAN 1
  41 #endif
  42
  43 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
  44 /*#define BITS_BIG_ENDIAN */
  45 #endif
  46
  47 /* Swap LEN bytes at BUFFER between target and host byte-order.  */
  48 #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
  49 #define SWAP_TARGET_AND_HOST(buffer,len)
  50 #else /* Target and host byte order differ.  */
  51 #define SWAP_TARGET_AND_HOST(buffer,len) \
  52   {                                                                      \
  53     char tmp;                                                            \
  54     char *p = (char *)(buffer);                                          \
  55     char *q = ((char *)(buffer)) + len - 1;                              \
  56     for (; p < q; p++, q--)                                              \
  57       {                                                                  \
  58         tmp = *q;                                                        \
  59         *q = *p;                                                         \
  60         *p = tmp;                                                        \
  61       }                                                                  \
  62   }
  63 #endif /* Target and host byte order differ.  */
  64
  65 /* On some machines there are bits in addresses which are not really
  66    part of the address, but are used by the kernel, the hardware, etc.
  67    for special purposes.  ADDR_BITS_REMOVE takes out any such bits
  68    so we get a "real" address such as one would find in a symbol
  69    table.  ADDR_BITS_SET sets those bits the way the system wants
  70    them.  */
  71 #if !defined (ADDR_BITS_REMOVE)
  72 #define ADDR_BITS_REMOVE(addr) (addr)
  73 #define ADDR_BITS_SET(addr) (addr)
  74 #endif /* No ADDR_BITS_REMOVE.  */
  75
  76 #endif /* param.h not already included.  */