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[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [sim/] [common/] [sim-config.c] - Blame information for rev 855

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1 330 jeremybenn
/* The common simulator framework for GDB, the GNU Debugger.
2
 
3
   Copyright 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
4
 
5
   Contributed by Andrew Cagney and Red Hat.
6
 
7
   This file is part of GDB.
8
 
9
   This program is free software; you can redistribute it and/or modify
10
   it under the terms of the GNU General Public License as published by
11
   the Free Software Foundation; either version 3 of the License, or
12
   (at your option) any later version.
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14
   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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19
   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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22
 
23
#include "sim-main.h"
24
#include "sim-assert.h"
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#include "bfd.h"
26
 
27
 
28
int current_host_byte_order;
29
int current_target_byte_order;
30
int current_stdio;
31
 
32
enum sim_alignments current_alignment;
33
 
34
#if defined (WITH_FLOATING_POINT)
35
int current_floating_point;
36
#endif
37
 
38
 
39
 
40
/* map a byte order onto a textual string */
41
 
42
static const char *
43
config_byte_order_to_a (int byte_order)
44
{
45
  switch (byte_order)
46
    {
47
    case LITTLE_ENDIAN:
48
      return "LITTLE_ENDIAN";
49
    case BIG_ENDIAN:
50
      return "BIG_ENDIAN";
51
    case 0:
52
      return "0";
53
    }
54
  return "UNKNOWN";
55
}
56
 
57
 
58
static const char *
59
config_stdio_to_a (int stdio)
60
{
61
  switch (stdio)
62
    {
63
    case DONT_USE_STDIO:
64
      return "DONT_USE_STDIO";
65
    case DO_USE_STDIO:
66
      return "DO_USE_STDIO";
67
    case 0:
68
      return "0";
69
    }
70
  return "UNKNOWN";
71
}
72
 
73
 
74
static const char *
75
config_environment_to_a (enum sim_environment environment)
76
{
77
  switch (environment)
78
    {
79
    case ALL_ENVIRONMENT:
80
      return "ALL_ENVIRONMENT";
81
    case USER_ENVIRONMENT:
82
      return "USER_ENVIRONMENT";
83
    case VIRTUAL_ENVIRONMENT:
84
      return "VIRTUAL_ENVIRONMENT";
85
    case OPERATING_ENVIRONMENT:
86
      return "OPERATING_ENVIRONMENT";
87
    }
88
  return "UNKNOWN";
89
}
90
 
91
 
92
static const char *
93
config_alignment_to_a (enum sim_alignments alignment)
94
{
95
  switch (alignment)
96
    {
97
    case MIXED_ALIGNMENT:
98
      return "MIXED_ALIGNMENT";
99
    case NONSTRICT_ALIGNMENT:
100
      return "NONSTRICT_ALIGNMENT";
101
    case STRICT_ALIGNMENT:
102
      return "STRICT_ALIGNMENT";
103
    case FORCED_ALIGNMENT:
104
      return "FORCED_ALIGNMENT";
105
    }
106
  return "UNKNOWN";
107
}
108
 
109
 
110
#if defined (WITH_FLOATING_POINT)
111
static const char *
112
config_floating_point_to_a (int floating_point)
113
{
114
  switch (floating_point)
115
    {
116
    case SOFT_FLOATING_POINT:
117
      return "SOFT_FLOATING_POINT";
118
    case HARD_FLOATING_POINT:
119
      return "HARD_FLOATING_POINT";
120
    case 0:
121
      return "0";
122
    }
123
  return "UNKNOWN";
124
}
125
#endif
126
 
127
/* Set the default environment, prior to parsing argv.  */
128
 
129
void
130
sim_config_default (SIM_DESC sd)
131
{
132
   /* Set the current environment to ALL_ENVIRONMENT to indicate none has been
133
      selected yet.  This is so that after parsing argv, we know whether the
134
      environment was explicitly specified or not.  */
135
  STATE_ENVIRONMENT (sd) = ALL_ENVIRONMENT;
136
}
137
 
138
/* Complete and verify the simulation environment.  */
139
 
140
SIM_RC
141
sim_config (SIM_DESC sd)
142
{
143
  int prefered_target_byte_order;
144
  SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
145
 
146
  /* extract all relevant information */
147
  if (STATE_PROG_BFD (sd) == NULL
148
      /* If we have a binary input file (presumably with specified
149
         "--architecture"), it'll have no endianness.  */
150
      || (!bfd_little_endian (STATE_PROG_BFD (sd))
151
          && !bfd_big_endian (STATE_PROG_BFD (sd))))
152
    prefered_target_byte_order = 0;
153
  else
154
    prefered_target_byte_order = (bfd_little_endian(STATE_PROG_BFD (sd))
155
                                  ? LITTLE_ENDIAN
156
                                  : BIG_ENDIAN);
157
 
158
  /* set the host byte order */
159
  current_host_byte_order = 1;
160
  if (*(char*)(&current_host_byte_order))
161
    current_host_byte_order = LITTLE_ENDIAN;
162
  else
163
    current_host_byte_order = BIG_ENDIAN;
164
 
165
  /* verify the host byte order */
166
  if (CURRENT_HOST_BYTE_ORDER != current_host_byte_order)
167
    {
168
      sim_io_eprintf (sd, "host (%s) and configured (%s) byte order in conflict",
169
                      config_byte_order_to_a (current_host_byte_order),
170
                      config_byte_order_to_a (CURRENT_HOST_BYTE_ORDER));
171
      return SIM_RC_FAIL;
172
    }
173
 
174
 
175
  /* set the target byte order */
176
#if (WITH_TREE_PROPERTIES)
177
  if (current_target_byte_order == 0)
178
    current_target_byte_order
179
      = (tree_find_boolean_property (root, "/options/little-endian?")
180
         ? LITTLE_ENDIAN
181
         : BIG_ENDIAN);
182
#endif
183
  if (current_target_byte_order == 0
184
      && prefered_target_byte_order != 0)
185
    current_target_byte_order = prefered_target_byte_order;
186
  if (current_target_byte_order == 0)
187
    current_target_byte_order = WITH_TARGET_BYTE_ORDER;
188
  if (current_target_byte_order == 0)
189
    current_target_byte_order = WITH_DEFAULT_TARGET_BYTE_ORDER;
190
 
191
  /* verify the target byte order */
192
  if (CURRENT_TARGET_BYTE_ORDER == 0)
193
    {
194
      sim_io_eprintf (sd, "Target byte order unspecified\n");
195
      return SIM_RC_FAIL;
196
    }
197
  if (CURRENT_TARGET_BYTE_ORDER != current_target_byte_order)
198
    sim_io_eprintf (sd, "Target (%s) and configured (%s) byte order in conflict\n",
199
                  config_byte_order_to_a (current_target_byte_order),
200
                  config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER));
201
  if (prefered_target_byte_order != 0
202
      && CURRENT_TARGET_BYTE_ORDER != prefered_target_byte_order)
203
    sim_io_eprintf (sd, "Target (%s) and specified (%s) byte order in conflict\n",
204
                  config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER),
205
                  config_byte_order_to_a (prefered_target_byte_order));
206
 
207
 
208
  /* set the stdio */
209
  if (current_stdio == 0)
210
    current_stdio = WITH_STDIO;
211
  if (current_stdio == 0)
212
    current_stdio = DO_USE_STDIO;
213
 
214
  /* verify the stdio */
215
  if (CURRENT_STDIO == 0)
216
    {
217
      sim_io_eprintf (sd, "Target standard IO unspecified\n");
218
      return SIM_RC_FAIL;
219
    }
220
  if (CURRENT_STDIO != current_stdio)
221
    {
222
      sim_io_eprintf (sd, "Target (%s) and configured (%s) standard IO in conflict\n",
223
                      config_stdio_to_a (CURRENT_STDIO),
224
                      config_stdio_to_a (current_stdio));
225
      return SIM_RC_FAIL;
226
    }
227
 
228
 
229
  /* check the value of MSB */
230
  if (WITH_TARGET_WORD_MSB != 0
231
      && WITH_TARGET_WORD_MSB != (WITH_TARGET_WORD_BITSIZE - 1))
232
    {
233
      sim_io_eprintf (sd, "Target bitsize (%d) contradicts target most significant bit (%d)\n",
234
                      WITH_TARGET_WORD_BITSIZE, WITH_TARGET_WORD_MSB);
235
      return SIM_RC_FAIL;
236
    }
237
 
238
 
239
  /* set the environment */
240
#if (WITH_TREE_PROPERTIES)
241
  if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT)
242
    {
243
      const char *env =
244
        tree_find_string_property(root, "/openprom/options/env");
245
      STATE_ENVIRONMENT (sd) = ((strcmp(env, "user") == 0
246
                                 || strcmp(env, "uea") == 0)
247
                                ? USER_ENVIRONMENT
248
                                : (strcmp(env, "virtual") == 0
249
                                   || strcmp(env, "vea") == 0)
250
                                ? VIRTUAL_ENVIRONMENT
251
                                : (strcmp(env, "operating") == 0
252
                                   || strcmp(env, "oea") == 0)
253
                                ? OPERATING_ENVIRONMENT
254
                                : ALL_ENVIRONMENT);
255
    }
256
#endif
257
  if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT)
258
    STATE_ENVIRONMENT (sd) = DEFAULT_ENVIRONMENT;
259
 
260
 
261
  /* set the alignment */
262
#if (WITH_TREE_PROPERTIES)
263
  if (current_alignment == 0)
264
    current_alignment =
265
      (tree_find_boolean_property(root, "/openprom/options/strict-alignment?")
266
       ? STRICT_ALIGNMENT
267
       : NONSTRICT_ALIGNMENT);
268
#endif
269
  if (current_alignment == 0)
270
    current_alignment = WITH_ALIGNMENT;
271
  if (current_alignment == 0)
272
    current_alignment = WITH_DEFAULT_ALIGNMENT;
273
 
274
  /* verify the alignment */
275
  if (CURRENT_ALIGNMENT == 0)
276
    {
277
      sim_io_eprintf (sd, "Target alignment unspecified\n");
278
      return SIM_RC_FAIL;
279
    }
280
  if (CURRENT_ALIGNMENT != current_alignment)
281
    {
282
      sim_io_eprintf (sd, "Target (%s) and configured (%s) alignment in conflict\n",
283
                      config_alignment_to_a (CURRENT_ALIGNMENT),
284
                      config_alignment_to_a (current_alignment));
285
      return SIM_RC_FAIL;
286
    }
287
 
288
#if defined (WITH_FLOATING_POINT)
289
 
290
  /* set the floating point */
291
  if (current_floating_point == 0)
292
    current_floating_point = WITH_FLOATING_POINT;
293
 
294
  /* verify the floating point */
295
  if (CURRENT_FLOATING_POINT == 0)
296
    {
297
      sim_io_eprintf (sd, "Target floating-point unspecified\n");
298
      return SIM_RC_FAIL;
299
    }
300
  if (CURRENT_FLOATING_POINT != current_floating_point)
301
    {
302
      sim_io_eprintf (sd, "Target (%s) and configured (%s) floating-point in conflict\n",
303
                      config_alignment_to_a (CURRENT_FLOATING_POINT),
304
                      config_alignment_to_a (current_floating_point));
305
      return SIM_RC_FAIL;
306
    }
307
 
308
#endif
309
  return SIM_RC_OK;
310
}
311
 
312
 
313
void
314
print_sim_config (SIM_DESC sd)
315
{
316
#if defined (__GNUC__) && defined (__VERSION__)
317
  sim_io_printf (sd, "Compiled by GCC %s on %s %s\n",
318
                          __VERSION__, __DATE__, __TIME__);
319
#else
320
  sim_io_printf (sd, "Compiled on %s %s\n", __DATE__, __TIME__);
321
#endif
322
 
323
  sim_io_printf (sd, "WITH_TARGET_BYTE_ORDER   = %s\n",
324
                 config_byte_order_to_a (WITH_TARGET_BYTE_ORDER));
325
 
326
  sim_io_printf (sd, "WITH_DEFAULT_TARGET_BYTE_ORDER   = %s\n",
327
                 config_byte_order_to_a (WITH_DEFAULT_TARGET_BYTE_ORDER));
328
 
329
  sim_io_printf (sd, "WITH_HOST_BYTE_ORDER     = %s\n",
330
                 config_byte_order_to_a (WITH_HOST_BYTE_ORDER));
331
 
332
  sim_io_printf (sd, "WITH_STDIO               = %s\n",
333
                 config_stdio_to_a (WITH_STDIO));
334
 
335
  sim_io_printf (sd, "WITH_TARGET_WORD_MSB     = %d\n",
336
                 WITH_TARGET_WORD_MSB);
337
 
338
  sim_io_printf (sd, "WITH_TARGET_WORD_BITSIZE = %d\n",
339
                 WITH_TARGET_WORD_BITSIZE);
340
 
341
  sim_io_printf (sd, "WITH_TARGET_ADDRESS_BITSIZE = %d\n",
342
                 WITH_TARGET_ADDRESS_BITSIZE);
343
 
344
  sim_io_printf (sd, "WITH_TARGET_CELL_BITSIZE = %d\n",
345
                 WITH_TARGET_CELL_BITSIZE);
346
 
347
  sim_io_printf (sd, "WITH_TARGET_FLOATING_POINT_BITSIZE = %d\n",
348
                 WITH_TARGET_FLOATING_POINT_BITSIZE);
349
 
350
  sim_io_printf (sd, "WITH_ENVIRONMENT = %s\n",
351
                 config_environment_to_a (WITH_ENVIRONMENT));
352
 
353
  sim_io_printf (sd, "WITH_ALIGNMENT = %s\n",
354
                 config_alignment_to_a (WITH_ALIGNMENT));
355
 
356
#if defined (WITH_DEFAULT_ALIGNMENT)
357
  sim_io_printf (sd, "WITH_DEFAULT_ALIGNMENT = %s\n",
358
                 config_alignment_to_a (WITH_DEFAULT_ALIGNMENT));
359
#endif
360
 
361
#if defined (WITH_XOR_ENDIAN)
362
  sim_io_printf (sd, "WITH_XOR_ENDIAN = %d\n", WITH_XOR_ENDIAN);
363
#endif
364
 
365
#if defined (WITH_FLOATING_POINT)
366
  sim_io_printf (sd, "WITH_FLOATING_POINT = %s\n",
367
                 config_floating_point_to_a (WITH_FLOATING_POINT));
368
#endif
369
 
370
#if defined (WITH_SMP)
371
  sim_io_printf (sd, "WITH_SMP = %d\n", WITH_SMP);
372
#endif
373
 
374
#if defined (WITH_RESERVED_BITS)
375
  sim_io_printf (sd, "WITH_RESERVED_BITS = %d\n", WITH_RESERVED_BITS);
376
#endif
377
 
378
#if defined (WITH_PROFILE)
379
  sim_io_printf (sd, "WITH_PROFILE = %d\n", WITH_PROFILE);
380
#endif
381
 
382
}

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