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[/] [or1k/] [trunk/] [insight/] [sim/] [common/] [sim-config.h] - Blame information for rev 1765

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1 578 markom
/*  This file is part of the program psim.
2
 
3
    Copyright (C) 1994-1995, 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 2 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, write to the Free Software
17
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
 
19
    */
20
 
21
 
22
#ifndef SIM_CONFIG_H
23
#define SIM_CONFIG_H
24
 
25
 
26
/* Host dependant:
27
 
28
   The CPP below defines information about the compilation host.  In
29
   particular it defines the macro's:
30
 
31
        WITH_HOST_BYTE_ORDER    The byte order of the host. Could
32
                                be any of LITTLE_ENDIAN, BIG_ENDIAN
33
                                or 0 (unknown).  Those macro's also
34
                                need to be defined.
35
 
36
 */
37
 
38
 
39
/* NetBSD:
40
 
41
   NetBSD is easy, everything you could ever want is in a header file
42
   (well almost :-) */
43
 
44
#if defined(__NetBSD__)
45
# include <machine/endian.h>
46
# if (WITH_HOST_BYTE_ORDER == 0)
47
#  undef WITH_HOST_BYTE_ORDER
48
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
49
# endif
50
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
51
#  error "host endian incorrectly configured, check config.h"
52
# endif
53
#endif
54
 
55
/* Linux is similarly easy.  */
56
 
57
#if defined(__linux__)
58
# include <endian.h>
59
# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
60
#  define LITTLE_ENDIAN __LITTLE_ENDIAN
61
# endif
62
# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
63
#  define BIG_ENDIAN __BIG_ENDIAN
64
# endif
65
# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
66
#  define BYTE_ORDER __BYTE_ORDER
67
# endif
68
# if (WITH_HOST_BYTE_ORDER == 0)
69
#  undef WITH_HOST_BYTE_ORDER
70
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
71
# endif
72
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
73
#  error "host endian incorrectly configured, check config.h"
74
# endif
75
#endif
76
 
77
/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
78
   BIG_ENDIAN macro's */
79
 
80
 
81
/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */
82
 
83
#ifndef LITTLE_ENDIAN
84
#define LITTLE_ENDIAN 1234
85
#endif
86
#ifndef BIG_ENDIAN
87
#define BIG_ENDIAN 4321
88
#endif
89
 
90
 
91
/* SunOS on SPARC:
92
 
93
   Big endian last time I looked */
94
 
95
#if defined(sparc) || defined(__sparc__)
96
# if (WITH_HOST_BYTE_ORDER == 0)
97
#  undef WITH_HOST_BYTE_ORDER
98
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
99
# endif
100
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
101
#  error "sun was big endian last time I looked ..."
102
# endif
103
#endif
104
 
105
 
106
/* Random x86
107
 
108
   Little endian last time I looked */
109
 
110
#if defined(i386) || defined(i486) || defined(i586) || defined (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__)
111
# if (WITH_HOST_BYTE_ORDER == 0)
112
#  undef WITH_HOST_BYTE_ORDER
113
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
114
# endif
115
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
116
#  error "x86 was little endian last time I looked ..."
117
# endif
118
#endif
119
 
120
#if (defined (__i486__) || defined (__i586__) || defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP
121
#undef  htonl
122
#undef  ntohl
123
#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
124
#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
125
#endif
126
 
127
/* Power or PowerPC running AIX  */
128
#if defined(_POWER) && defined(_AIX)
129
# if (WITH_HOST_BYTE_ORDER == 0)
130
#  undef WITH_HOST_BYTE_ORDER
131
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
132
# endif
133
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
134
#  error "Power/PowerPC AIX was big endian last time I looked ..."
135
# endif
136
#endif
137
 
138
/* Solaris running PowerPC */
139
#if defined(__PPC) && defined(__sun__)
140
# if (WITH_HOST_BYTE_ORDER == 0)
141
#  undef WITH_HOST_BYTE_ORDER
142
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
143
# endif
144
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
145
#  error "Solaris on PowerPCs was little endian last time I looked ..."
146
# endif
147
#endif
148
 
149
/* HP/PA */
150
#if defined(__hppa__)
151
# if (WITH_HOST_BYTE_ORDER == 0)
152
#  undef WITH_HOST_BYTE_ORDER
153
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
154
# endif
155
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
156
#  error "HP/PA was big endian last time I looked ..."
157
# endif
158
#endif
159
 
160
/* Big endian MIPS */
161
#if defined(__MIPSEB__)
162
# if (WITH_HOST_BYTE_ORDER == 0)
163
#  undef WITH_HOST_BYTE_ORDER
164
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
165
# endif
166
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
167
#  error "MIPSEB was big endian last time I looked ..."
168
# endif
169
#endif
170
 
171
/* Little endian MIPS */
172
#if defined(__MIPSEL__)
173
# if (WITH_HOST_BYTE_ORDER == 0)
174
#  undef WITH_HOST_BYTE_ORDER
175
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
176
# endif
177
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
178
#  error "MIPSEL was little endian last time I looked ..."
179
# endif
180
#endif
181
 
182
/* Windows NT */
183
#if defined(__WIN32__)
184
# if (WITH_HOST_BYTE_ORDER == 0)
185
#  undef WITH_HOST_BYTE_ORDER
186
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
187
# endif
188
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
189
#  error "Windows NT was little endian last time I looked ..."
190
# endif
191
#endif
192
 
193
/* Alpha running DEC unix */
194
#if defined(__osf__) && defined(__alpha__)
195
# if (WITH_HOST_BYTE_ORDER == 0)
196
#  undef WITH_HOST_BYTE_ORDER
197
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
198
# endif
199
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
200
#  error "AXP running DEC unix was little endian last time I looked ..."
201
# endif
202
#endif
203
 
204
 
205
/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
206
   BIG_ENDIAN definitions available.  */
207
 
208
/* Until devices and tree properties are sorted out, tell sim-config.c
209
   not to call the tree_find_foo fns.  */
210
#define WITH_TREE_PROPERTIES 0
211
 
212
 
213
/* endianness of the host/target:
214
 
215
   If the build process is aware (at compile time) of the endianness
216
   of the host/target it is able to eliminate slower generic endian
217
   handling code.
218
 
219
   Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */
220
 
221
#ifndef WITH_HOST_BYTE_ORDER
222
#define WITH_HOST_BYTE_ORDER            0 /*unknown*/
223
#endif
224
 
225
#ifndef WITH_TARGET_BYTE_ORDER
226
#define WITH_TARGET_BYTE_ORDER          0 /*unknown*/
227
#endif
228
 
229
#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER
230
#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */
231
#endif
232
 
233
extern int current_host_byte_order;
234
#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
235
                                 ? WITH_HOST_BYTE_ORDER \
236
                                 : current_host_byte_order)
237
extern int current_target_byte_order;
238
#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
239
                                   ? WITH_TARGET_BYTE_ORDER \
240
                                   : current_target_byte_order)
241
 
242
 
243
 
244
/* XOR endian.
245
 
246
   In addition to the above, the simulator can support the horrible
247
   XOR endian mode (as found in the PowerPC and MIPS ISA).  See
248
   sim-core for more information.
249
 
250
   If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes
251
   potentially involved in the XOR munge. A typical value is 8. */
252
 
253
#ifndef WITH_XOR_ENDIAN
254
#define WITH_XOR_ENDIAN         0
255
#endif
256
 
257
 
258
 
259
/* Intel host BSWAP support:
260
 
261
   Whether to use bswap on the 486 and pentiums rather than the 386
262
   sequence that uses xchgb/rorl/xchgb */
263
#ifndef WITH_BSWAP
264
#define WITH_BSWAP 0
265
#endif
266
 
267
 
268
 
269
/* SMP support:
270
 
271
   Sets a limit on the number of processors that can be simulated.  If
272
   WITH_SMP is set to zero (0), the simulator is restricted to
273
   suporting only one processor (and as a consequence leaves the SMP
274
   code out of the build process).
275
 
276
   The actual number of processors is taken from the device
277
   /options/smp@<nr-cpu> */
278
 
279
#if defined (WITH_SMP) && (WITH_SMP > 0)
280
#define MAX_NR_PROCESSORS               WITH_SMP
281
#endif
282
 
283
#ifndef MAX_NR_PROCESSORS
284
#define MAX_NR_PROCESSORS               1
285
#endif
286
 
287
 
288
/* Size of target word, address and OpenFirmware Cell:
289
 
290
   The target word size is determined by the natural size of its
291
   reginsters.
292
 
293
   On most hosts, the address and cell are the same size as a target
294
   word.  */
295
 
296
#ifndef WITH_TARGET_WORD_BITSIZE
297
#define WITH_TARGET_WORD_BITSIZE        32
298
#endif
299
 
300
#ifndef WITH_TARGET_ADDRESS_BITSIZE
301
#define WITH_TARGET_ADDRESS_BITSIZE     WITH_TARGET_WORD_BITSIZE
302
#endif
303
 
304
#ifndef WITH_TARGET_CELL_BITSIZE
305
#define WITH_TARGET_CELL_BITSIZE        WITH_TARGET_WORD_BITSIZE
306
#endif
307
 
308
#ifndef WITH_TARGET_FLOATING_POINT_BITSIZE
309
#define WITH_TARGET_FLOATING_POINT_BITSIZE 64
310
#endif
311
 
312
 
313
 
314
/* Most significant bit of target:
315
 
316
   Set this according to your target's bit numbering convention.  For
317
   the PowerPC it is zero, for many other targets it is 31 or 63.
318
 
319
   For targets that can both have either 32 or 64 bit words and number
320
   MSB as 31, 63.  Define this to be (WITH_TARGET_WORD_BITSIZE - 1) */
321
 
322
#ifndef WITH_TARGET_WORD_MSB
323
#define WITH_TARGET_WORD_MSB            0
324
#endif
325
 
326
 
327
 
328
/* Program environment:
329
 
330
   Three environments are available - UEA (user), VEA (virtual) and
331
   OEA (perating).  The former two are environment that users would
332
   expect to see (VEA includes things like coherency and the time
333
   base) while OEA is what an operating system expects to see.  By
334
   setting these to specific values, the build process is able to
335
   eliminate non relevent environment code.
336
 
337
   STATE_ENVIRONMENT(sd) specifies which of vea or oea is required for
338
   the current runtime.
339
 
340
   ALL_ENVIRONMENT is used during configuration as a value for
341
   WITH_ENVIRONMENT to indicate the choice is runtime selectable.
342
   The default is then USER_ENVIRONMENT [since allowing the user to choose
343
   the default at configure time seems like featuritis and since people using
344
   OPERATING_ENVIRONMENT have more to worry about than selecting the
345
   default].
346
   ALL_ENVIRONMENT is also used to set STATE_ENVIRONMENT to the
347
   "uninitialized" state.  */
348
 
349
enum sim_environment {
350
  ALL_ENVIRONMENT,
351
  USER_ENVIRONMENT,
352
  VIRTUAL_ENVIRONMENT,
353
  OPERATING_ENVIRONMENT
354
};
355
 
356
/* If the simulator specified SIM_AC_OPTION_ENVIRONMENT, indicate so.  */
357
#ifdef WITH_ENVIRONMENT
358
#define SIM_HAVE_ENVIRONMENT
359
#endif
360
 
361
/* If the simulator doesn't specify SIM_AC_OPTION_ENVIRONMENT in its
362
   configure.in, the only supported environment is the user environment.  */
363
#ifndef WITH_ENVIRONMENT
364
#define WITH_ENVIRONMENT USER_ENVIRONMENT
365
#endif
366
 
367
#define DEFAULT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
368
                             ? WITH_ENVIRONMENT \
369
                             : USER_ENVIRONMENT)
370
 
371
 
372
/* Callback & Modulo Memory.
373
 
374
   Core includes a builtin memory type (raw_memory) that is
375
   implemented using an array.  raw_memory does not require any
376
   additional functions etc.
377
 
378
   Callback memory is where the core calls a core device for the data
379
   it requires.  Callback memory can be layered using priorities.
380
 
381
   Modulo memory is a variation on raw_memory where ADDRESS & (MODULO
382
   - 1) is used as the index into the memory array.
383
 
384
   The OEA model uses callback memory for devices.
385
 
386
   The VEA model uses callback memory to capture `page faults'.
387
 
388
   BTW, while raw_memory could have been implemented as a callback,
389
   profiling has shown that there is a biger win (at least for the
390
   x86) in eliminating a function call for the most common
391
   (raw_memory) case. */
392
 
393
#ifndef WITH_CALLBACK_MEMORY
394
#define WITH_CALLBACK_MEMORY            1
395
#endif
396
 
397
#ifndef WITH_MODULO_MEMORY
398
#define WITH_MODULO_MEMORY              0
399
#endif
400
 
401
 
402
 
403
/* Alignment:
404
 
405
   A processor architecture may or may not handle miss aligned
406
   transfers.
407
 
408
   As alternatives: both little and big endian modes take an exception
409
   (STRICT_ALIGNMENT); big and little endian models handle mis aligned
410
   transfers (NONSTRICT_ALIGNMENT); or the address is forced into
411
   alignment using a mask (FORCED_ALIGNMENT).
412
 
413
   Mixed alignment should be specified when the simulator needs to be
414
   able to change the alignment requirements on the fly (eg for
415
   bi-endian support). */
416
 
417
enum sim_alignments {
418
  MIXED_ALIGNMENT,
419
  NONSTRICT_ALIGNMENT,
420
  STRICT_ALIGNMENT,
421
  FORCED_ALIGNMENT,
422
};
423
 
424
extern enum sim_alignments current_alignment;
425
 
426
#if !defined (WITH_ALIGNMENT)
427
#define WITH_ALIGNMENT 0
428
#endif
429
 
430
#if !defined (WITH_DEFAULT_ALIGNMENT)
431
#define WITH_DEFAULT_ALIGNMENT 0 /* fatal */
432
#endif
433
 
434
 
435
 
436
 
437
#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \
438
                           ? WITH_ALIGNMENT \
439
                           : current_alignment)
440
 
441
 
442
 
443
/* Floating point suport:
444
 
445
   Should the processor trap for all floating point instructions (as
446
   if the hardware wasn't implemented) or implement the floating point
447
   instructions directly. */
448
 
449
#if defined (WITH_FLOATING_POINT)
450
 
451
#define SOFT_FLOATING_POINT             1
452
#define HARD_FLOATING_POINT             2
453
 
454
extern int current_floating_point;
455
#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \
456
                                ? WITH_FLOATING_POINT \
457
                                : current_floating_point)
458
 
459
#endif
460
 
461
 
462
 
463
/* Engine module.
464
 
465
   Use the common start/stop/restart framework (sim-engine).
466
   Simulators using the other modules but not the engine should define
467
   WITH_ENGINE=0. */
468
 
469
#ifndef WITH_ENGINE
470
#define WITH_ENGINE                     1
471
#endif
472
 
473
 
474
 
475
/* Debugging:
476
 
477
   Control the inclusion of debugging code.
478
   Debugging is only turned on in rare circumstances [say during development]
479
   and is not intended to be turned on otherwise.  */
480
 
481
#ifndef WITH_DEBUG
482
#define WITH_DEBUG                      0
483
#endif
484
 
485
/* Include the tracing code.  Disabling this eliminates all tracing
486
   code */
487
 
488
#ifndef WITH_TRACE
489
#define WITH_TRACE                      (-1)
490
#endif
491
 
492
/* Include the profiling code.  Disabling this eliminates all profiling
493
   code.  */
494
 
495
#ifndef WITH_PROFILE
496
#define WITH_PROFILE                    (-1)
497
#endif
498
 
499
 
500
/* include code that checks assertions scattered through out the
501
   program */
502
 
503
#ifndef WITH_ASSERT
504
#define WITH_ASSERT                     1
505
#endif
506
 
507
 
508
/* Whether to check instructions for reserved bits being set */
509
 
510
/* #define WITH_RESERVED_BITS           1 */
511
 
512
 
513
 
514
/* include monitoring code */
515
 
516
#define MONITOR_INSTRUCTION_ISSUE       1
517
#define MONITOR_LOAD_STORE_UNIT         2
518
/* do not define WITH_MON by default */
519
#define DEFAULT_WITH_MON                (MONITOR_LOAD_STORE_UNIT \
520
                                         | MONITOR_INSTRUCTION_ISSUE)
521
 
522
 
523
/* Current CPU model (models are in the generated models.h include file)  */
524
#ifndef WITH_MODEL
525
#define WITH_MODEL                      0
526
#endif
527
 
528
#define CURRENT_MODEL (WITH_MODEL       \
529
                       ? WITH_MODEL     \
530
                       : current_model)
531
 
532
#ifndef WITH_DEFAULT_MODEL
533
#define WITH_DEFAULT_MODEL              DEFAULT_MODEL
534
#endif
535
 
536
#define MODEL_ISSUE_IGNORE              (-1)
537
#define MODEL_ISSUE_PROCESS             1
538
 
539
#ifndef WITH_MODEL_ISSUE
540
#define WITH_MODEL_ISSUE                0
541
#endif
542
 
543
extern int current_model_issue;
544
#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE   \
545
                             ? WITH_MODEL_ISSUE \
546
                             : current_model_issue)
547
 
548
 
549
 
550
/* Whether or not input/output just uses stdio, or uses printf_filtered for
551
   output, and polling input for input.  */
552
 
553
#define DONT_USE_STDIO                  2
554
#define DO_USE_STDIO                    1
555
 
556
#ifndef WITH_STDIO
557
#define WITH_STDIO                      0
558
#endif
559
 
560
extern int current_stdio;
561
#define CURRENT_STDIO (WITH_STDIO       \
562
                       ? WITH_STDIO     \
563
                       : current_stdio)
564
 
565
 
566
 
567
/* Specify that configured calls pass parameters in registers when the
568
   convention is that they are placed on the stack */
569
 
570
#ifndef WITH_REGPARM
571
#define WITH_REGPARM                   0
572
#endif
573
 
574
/* Specify that configured calls use an alternative calling mechanism */
575
 
576
#ifndef WITH_STDCALL
577
#define WITH_STDCALL                   0
578
#endif
579
 
580
 
581
/* Set the default state configuration, before parsing argv.  */
582
 
583
extern void sim_config_default (SIM_DESC sd);
584
 
585
/* Complete and verify the simulator configuration.  */
586
 
587
extern SIM_RC sim_config (SIM_DESC sd);
588
 
589
/* Print the simulator configuration.  */
590
 
591
extern void print_sim_config (SIM_DESC sd);
592
 
593
 
594
#endif

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