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Annotation of gcc/config/rs6000/xm-rs6000.h, revision 1.1.1.3

1.1       root        1: /* Configuration for GNU C-compiler for IBM RS/6000.
1.1.1.3 ! root        2:    Copyright (C) 1990, 1993, 1995 Free Software Foundation, Inc.
        !             3:    Contributed by Richard Kenner ([email protected]).
1.1       root        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
1.1.1.3 ! root       19: the Free Software Foundation, 59 Temple Place - Suite 330,
        !            20: Boston, MA 02111-1307, USA.  */
1.1       root       21: 
                     22: 
                     23: /* #defines that need visibility everywhere.  */
                     24: #define        FALSE   0
                     25: #define        TRUE    1
                     26: 
                     27: /* This describes the machine the compiler is hosted on.  */
                     28: #define        HOST_BITS_PER_CHAR      8
                     29: #define        HOST_BITS_PER_SHORT     16
                     30: #define        HOST_BITS_PER_INT       32
                     31: #define        HOST_BITS_PER_LONG      32
                     32: #define HOST_BITS_PER_LONGLONG 64
                     33: 
                     34: #define        HOST_WORDS_BIG_ENDIAN
                     35: 
                     36: /* target machine dependencies.
                     37:    tm.h is a symbolic link to the actual target specific file.   */
                     38: #include "tm.h"
                     39: 
                     40: /* Arguments to use with `exit'.  */
                     41: #define        SUCCESS_EXIT_CODE       0
1.1.1.3 ! root       42: #define        FATAL_EXIT_CODE         33
1.1       root       43: 
1.1.1.2   root       44: /* If not compiled with GNU C, use the C alloca and use only int bitfields.  */
1.1       root       45: #ifndef __GNUC__
1.1.1.2   root       46: #define USE_C_ALLOCA
1.1.1.3 ! root       47: extern char *alloca ();
1.1       root       48: #define        ONLY_INT_FIELDS
                     49: #endif
                     50: 
                     51: /* AIX is a flavor of System V */
                     52: #define        USG
                     53: 
                     54: /* Big buffers improve performance.  */
                     55: #define IO_BUFFER_SIZE (0x8000 - 4096)
1.1.1.3 ! root       56: 
        !            57: #ifndef CROSS_COMPILE
        !            58: /* The AIX linker will discard static constructors in object files before
        !            59:    collect has a chance to see them, so scan the object files directly.  */
        !            60: #define COLLECT_EXPORT_LIST
        !            61: #endif

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