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Annotation of gcc/config/xm-rs6000.h, revision 1.1.1.2

1.1       root        1: /* Configuration for GNU C-compiler for IBM RS/6000.
                      2:    Copyright (C) 1990 Free Software Foundation, Inc.
                      3:    Contributed by Richard Kenner ([email protected]).
                      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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
                     20: 
                     21: 
                     22: /* #defines that need visibility everywhere.  */
                     23: #define        FALSE   0
                     24: #define        TRUE    1
                     25: 
                     26: /* This describes the machine the compiler is hosted on.  */
                     27: #define        HOST_BITS_PER_CHAR      8
                     28: #define        HOST_BITS_PER_SHORT     16
                     29: #define        HOST_BITS_PER_INT       32
                     30: #define        HOST_BITS_PER_LONG      32
                     31: #define HOST_BITS_PER_LONGLONG 64
                     32: 
                     33: #define        HOST_WORDS_BIG_ENDIAN
                     34: 
                     35: /* target machine dependencies.
                     36:    tm.h is a symbolic link to the actual target specific file.   */
                     37: #include "tm.h"
                     38: 
                     39: /* Arguments to use with `exit'.  */
                     40: #define        SUCCESS_EXIT_CODE       0
                     41: #define        FAILURE_EXIT_CODE       2
                     42: #define        FATAL_EXIT_CODE         3
                     43: 
                     44: /* If compiled with GNU C, use the built-in alloca.  */
                     45: #ifdef __GNUC__
                     46: #define alloca __builtin_alloca
                     47: #else
                     48: #define USE_C_ALLOCA
                     49: #endif
                     50: 
                     51: /* If not compiled with GNU C, use only int bitfields.  */
                     52: #ifndef __GNUC__
                     53: #define        ONLY_INT_FIELDS
                     54: #endif
                     55: 
1.1.1.2 ! root       56: /* AIX is a flavor of System V */
1.1       root       57: #define        USG
1.1.1.2 ! root       58: 
        !            59: /* This is the only version of nm that collect2 can work with.  */
        !            60: #define REAL_NM_FILE_NAME "/usr/ucb/nm"
        !            61: 
        !            62: /* Big buffers improve performance.  */
        !            63: #define IO_BUFFER_SIZE (0x8000 - 4096)

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