sim/ppc/basics.h

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program 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 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
  17
  18     */
  19
  20
  21 #ifndef _BASICS_H_
  22 #define _BASICS_H_
  23
  24 /* This must come before any other includes.  */
  25 #include "defs.h"
  26
  27 /* from Michael Meissner, macro's to handle concating symbols better */
  28
  29 #if defined(__STDC__) || defined(ALMOST_STDC)
  30 #define CONCAT2(a,b)     a##b
  31 #define CONCAT3(a,b,c)   a##b##c
  32 #define CONCAT4(a,b,c,d) a##b##c##d
  33 #else
  34 #define CONCAT2(a,b)     a/**/b
  35 #define CONCAT3(a,b,c)   a/**/b/**/c
  36 #define CONCAT4(a,b,c,d) a/**/b/**/c/**/d
  37 #endif
  38
  39 #define XCONCAT2(a,b)     CONCAT2(a,b)
  40 #define XCONCAT3(a,b,c)   CONCAT3(a,b,c)
  41 #define XCONCAT4(a,b,c,d) CONCAT4(a,b,c,d)
  42
  43
  44 /* many things pass around the cpu and psim object with out knowing
  45    what it is */
  46
  47 typedef struct _cpu cpu;
  48 typedef struct _psim psim;
  49 typedef struct _device device;
  50 typedef struct _device_instance device_instance;
  51 typedef struct _event_queue event_queue;
  52 typedef struct _event_entry_tag *event_entry_tag;
  53
  54
  55 /* many things are moving data between the host and target */
  56
  57 typedef enum {
  58   cooked_transfer,
  59   raw_transfer,
  60 } transfer_mode;
  61
  62
  63 /* possible exit statuses */
  64
  65 typedef enum {
  66   was_continuing, was_trap, was_exited, was_signalled
  67 } stop_reason;
  68
  69
  70 /* disposition of an object when things are next restarted */
  71
  72 typedef enum {
  73   permenant_object,
  74   tempoary_object,
  75 } object_disposition;
  76
  77
  78 /* directions */
  79
  80 typedef enum {
  81   bidirect_port,
  82   input_port,
  83   output_port,
  84 } port_direction;
  85
  86
  87
  88 /* Basic configuration */
  89
  90 #include "ppc-config.h"
  91 #include "inline.h"
  92
  93
  94 /* Basic host dependant mess - hopefully <stdio.h> + <stdarg.h> will
  95    bring potential conflicts out in the open */
  96
  97 #include <stdarg.h>
  98 #include <stdio.h>
  99 #include <stdlib.h>
 100
 101
 102 #ifndef NORETURN
 103 #define NORETURN
 104 #endif
 105
 106 #ifndef NULL
 107 #define NULL 0
 108 #endif
 109
 110 #if !defined (__attribute__)
 111 #if (!defined(__GNUC__) \
 112      || (__GNUC__ < 2) \
 113      || (__GNUC__ == 2 && __GNUC_MINOR__ < 6))
 114 #define __attribute__(arg)
 115 #endif
 116 #endif
 117
 118 #if !defined (UNUSED)
 119 #if (!defined(__GNUC__) \
 120      || (__GNUC__ < 2) \
 121      || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
 122 #define UNUSED
 123 #else
 124 #define UNUSED __attribute__((__unused__))
 125 #endif
 126 #endif
 127
 128
 129 /* Basic definitions - ordered so that nothing calls what comes after
 130    it */
 131
 132 #include "sim_callbacks.h"
 133
 134 #include "debug.h"
 135
 136 #include "words.h"
 137 #include "bits.h"
 138 #include "sim-endian.h"
 139
 140 #endif /* _BASICS_H_ */