gcc/config/rs6000/xm-rs6000.h

   1 /* Configuration for GNU C-compiler for IBM RS/6000 running AIX in 32-bit mode.
   2    Copyright (C) 1990, 1993, 1995, 1998, 2001 Free Software Foundation, Inc.
   3    Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu).
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC 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, or (at your option)
  10 any later version.
  11
  12 GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* This describes the machine the compiler is hosted on.  */
  23 #define HOST_WORDS_BIG_ENDIAN
  24
  25 /* If not compiled with GNU C, use only int bitfields.  */
  26 #ifndef __GNUC__
  27 #define ONLY_INT_FIELDS
  28 #endif
  29
  30 /* Big buffers improve performance.  */
  31 #define IO_BUFFER_SIZE (0x8000 - 4096)
  32
  33 #ifndef CROSS_COMPILE
  34 /* The AIX linker will discard static constructors in object files before
  35    collect has a chance to see them, so scan the object files directly.  */
  36 #define COLLECT_EXPORT_LIST
  37 #endif