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[/] [or1k/] [tags/] [start/] [gdb-5.0/] [sim/] [common/] [sim-trace.h] - Blame information for rev 1765

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1 106 markom
/* Simulator tracing/debugging support.
2
   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
3
   Contributed by Cygnus Support.
4
 
5
This file is part of GDB, the GNU debugger.
6
 
7
This program 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
This program 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 along
18
with this program; if not, write to the Free Software Foundation, Inc.,
19
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
20
 
21
/* This file is meant to be included by sim-basics.h.  */
22
 
23
#ifndef SIM_TRACE_H
24
#define SIM_TRACE_H
25
 
26
/* Standard traceable entities.  */
27
 
28
enum {
29
  /* Trace insn execution.  */
30
  TRACE_INSN_IDX = 1,
31
 
32
  /* Trace insn decoding.
33
     ??? This is more of a simulator debugging operation and might best be
34
     moved to --debug-decode.  */
35
  TRACE_DECODE_IDX,
36
 
37
  /* Trace insn extraction.
38
     ??? This is more of a simulator debugging operation and might best be
39
     moved to --debug-extract.  */
40
  TRACE_EXTRACT_IDX,
41
 
42
  /* Trace insn execution but include line numbers.  */
43
  TRACE_LINENUM_IDX,
44
 
45
  /* Trace memory operations.
46
     The difference between this and TRACE_CORE_IDX is (I think) that this
47
     is intended to apply to a higher level.  TRACE_CORE_IDX applies to the
48
     low level core operations.  */
49
  TRACE_MEMORY_IDX,
50
 
51
  /* Include model performance data in tracing output.  */
52
  TRACE_MODEL_IDX,
53
 
54
  /* Trace ALU operations.  */
55
  TRACE_ALU_IDX,
56
 
57
  /* Trace memory core operations.  */
58
  TRACE_CORE_IDX,
59
 
60
  /* Trace events.  */
61
  TRACE_EVENTS_IDX,
62
 
63
  /* Trace fpu operations.  */
64
  TRACE_FPU_IDX,
65
 
66
  /* Trace branching.  */
67
  TRACE_BRANCH_IDX,
68
 
69
  /* Add information useful for debugging the simulator to trace output.  */
70
  TRACE_DEBUG_IDX,
71
 
72
  /* Simulator specific trace bits begin here.  */
73
  TRACE_NEXT_IDX,
74
 
75
};
76
/* Maximum number of traceable entities.  */
77
#ifndef MAX_TRACE_VALUES
78
#define MAX_TRACE_VALUES 32
79
#endif
80
 
81
/* The -t option only prints useful values.  It's easy to type and shouldn't
82
   splat on the screen everything under the sun making nothing easy to
83
   find.  */
84
#define TRACE_USEFUL_MASK \
85
((1 << TRACE_INSN_IDX) \
86
 | (1 << TRACE_LINENUM_IDX) \
87
 | (1 << TRACE_MEMORY_IDX) \
88
 | (1 << TRACE_MODEL_IDX) \
89
 | (1 << TRACE_EVENTS_IDX))
90
 
91
/* Masks so WITH_TRACE can have symbolic values.
92
   The case choice here is on purpose.  The lowercase parts are args to
93
   --with-trace.  */
94
#define TRACE_insn     (1 << TRACE_INSN_IDX)
95
#define TRACE_decode   (1 << TRACE_DECODE_IDX)
96
#define TRACE_extract  (1 << TRACE_EXTRACT_IDX)
97
#define TRACE_linenum  (1 << TRACE_LINENUM_IDX)
98
#define TRACE_memory   (1 << TRACE_MEMORY_IDX)
99
#define TRACE_model    (1 << TRACE_MODEL_IDX)
100
#define TRACE_alu      (1 << TRACE_ALU_IDX)
101
#define TRACE_core     (1 << TRACE_CORE_IDX)
102
#define TRACE_events   (1 << TRACE_EVENTS_IDX)
103
#define TRACE_fpu      (1 << TRACE_FPU_IDX)
104
#define TRACE_branch   (1 << TRACE_BRANCH_IDX)
105
#define TRACE_debug    (1 << TRACE_DEBUG_IDX)
106
 
107
/* Preprocessor macros to simplify tests of WITH_TRACE.  */
108
#define WITH_TRACE_INSN_P       (WITH_TRACE & TRACE_insn)
109
#define WITH_TRACE_DECODE_P     (WITH_TRACE & TRACE_decode)
110
#define WITH_TRACE_EXTRACT_P    (WITH_TRACE & TRACE_extract)
111
#define WITH_TRACE_LINENUM_P    (WITH_TRACE & TRACE_linenum)
112
#define WITH_TRACE_MEMORY_P     (WITH_TRACE & TRACE_memory)
113
#define WITH_TRACE_MODEL_P      (WITH_TRACE & TRACE_model)
114
#define WITH_TRACE_ALU_P        (WITH_TRACE & TRACE_alu)
115
#define WITH_TRACE_CORE_P       (WITH_TRACE & TRACE_core)
116
#define WITH_TRACE_EVENTS_P     (WITH_TRACE & TRACE_events)
117
#define WITH_TRACE_FPU_P        (WITH_TRACE & TRACE_fpu)
118
#define WITH_TRACE_BRANCH_P     (WITH_TRACE & TRACE_branch)
119
#define WITH_TRACE_DEBUG_P      (WITH_TRACE & TRACE_debug)
120
 
121
/* Tracing install handler.  */
122
MODULE_INSTALL_FN trace_install;
123
 
124
/* Struct containing all system and cpu trace data.
125
 
126
   System trace data is stored with the associated module.
127
   System and cpu tracing must share the same space of bitmasks as they
128
   are arguments to --with-trace.  One could have --with-trace and
129
   --with-cpu-trace or some such but that's an over-complication at this point
130
   in time.  Also, there may be occasions where system and cpu tracing may
131
   wish to share a name.  */
132
 
133
typedef struct _trace_data {
134
 
135
  /* Global summary of all the current trace options */
136
  char trace_any_p;
137
 
138
  /* Boolean array of specified tracing flags.  */
139
  /* ??? It's not clear that using an array vs a bit mask is faster.
140
     Consider the case where one wants to test whether any of several bits
141
     are set.  */
142
  char trace_flags[MAX_TRACE_VALUES];
143
#define TRACE_FLAGS(t) ((t)->trace_flags)
144
 
145
  /* Tracing output goes to this or stderr if NULL.
146
     We can't store `stderr' here as stderr goes through a callback.  */
147
  FILE *trace_file;
148
#define TRACE_FILE(t) ((t)->trace_file)
149
 
150
  /* Buffer to store the prefix to be printed before any trace line.  */
151
  char trace_prefix[256];
152
#define TRACE_PREFIX(t) ((t)->trace_prefix)
153
 
154
  /* Buffer to save the inputs for the current instruction.  Use a
155
     union to force the buffer into correct alignment */
156
  union {
157
    unsigned8 i8;
158
    unsigned16 i16;
159
    unsigned32 i32;
160
    unsigned64 i64;
161
  } trace_input_data[16];
162
  unsigned8 trace_input_fmt[16];
163
  unsigned8 trace_input_size[16];
164
  int trace_input_idx;
165
#define TRACE_INPUT_DATA(t) ((t)->trace_input_data)
166
#define TRACE_INPUT_FMT(t) ((t)->trace_input_fmt)
167
#define TRACE_INPUT_SIZE(t) ((t)->trace_input_size)
168
#define TRACE_INPUT_IDX(t) ((t)->trace_input_idx)
169
 
170
  /* Category of trace being performed */
171
  int trace_idx;
172
#define TRACE_IDX(t) ((t)->trace_idx)
173
 
174
  /* Trace range.
175
     ??? Not all cpu's support this.  */
176
  ADDR_RANGE range;
177
#define TRACE_RANGE(t) (& (t)->range)
178
} TRACE_DATA;
179
 
180
/* System tracing support.  */
181
 
182
#define STATE_TRACE_FLAGS(sd) TRACE_FLAGS (STATE_TRACE_DATA (sd))
183
 
184
/* Return non-zero if tracing of IDX is enabled for non-cpu specific
185
   components.  The "S" in "STRACE" refers to "System".  */
186
#define STRACE_P(sd,idx) \
187
((WITH_TRACE & (1 << (idx))) != 0 \
188
 && STATE_TRACE_FLAGS (sd)[idx] != 0)
189
 
190
/* Non-zero if --trace-<xxxx> was specified for SD.  */
191
#define STRACE_DEBUG_P(sd)      STRACE_P (sd, TRACE_DEBUG_IDX)
192
 
193
/* CPU tracing support.  */
194
 
195
#define CPU_TRACE_FLAGS(cpu) TRACE_FLAGS (CPU_TRACE_DATA (cpu))
196
 
197
/* Return non-zero if tracing of IDX is enabled for CPU.  */
198
#define TRACE_P(cpu,idx) \
199
((WITH_TRACE & (1 << (idx))) != 0 \
200
 && CPU_TRACE_FLAGS (cpu)[idx] != 0)
201
 
202
/* Non-zero if --trace-<xxxx> was specified for CPU.  */
203
#define TRACE_ANY_P(cpu)        ((WITH_TRACE) && (CPU_TRACE_DATA (cpu)->trace_any_p))
204
#define TRACE_INSN_P(cpu)       TRACE_P (cpu, TRACE_INSN_IDX)
205
#define TRACE_DECODE_P(cpu)     TRACE_P (cpu, TRACE_DECODE_IDX)
206
#define TRACE_EXTRACT_P(cpu)    TRACE_P (cpu, TRACE_EXTRACT_IDX)
207
#define TRACE_LINENUM_P(cpu)    TRACE_P (cpu, TRACE_LINENUM_IDX)
208
#define TRACE_MEMORY_P(cpu)     TRACE_P (cpu, TRACE_MEMORY_IDX)
209
#define TRACE_MODEL_P(cpu)      TRACE_P (cpu, TRACE_MODEL_IDX)
210
#define TRACE_ALU_P(cpu)        TRACE_P (cpu, TRACE_ALU_IDX)
211
#define TRACE_CORE_P(cpu)       TRACE_P (cpu, TRACE_CORE_IDX)
212
#define TRACE_EVENTS_P(cpu)     TRACE_P (cpu, TRACE_EVENTS_IDX)
213
#define TRACE_FPU_P(cpu)        TRACE_P (cpu, TRACE_FPU_IDX)
214
#define TRACE_BRANCH_P(cpu)     TRACE_P (cpu, TRACE_BRANCH_IDX)
215
#define TRACE_DEBUG_P(cpu)      TRACE_P (cpu, TRACE_DEBUG_IDX)
216
 
217
/* Traceing functions.
218
 
219
 */
220
 
221
/* Prime the trace buffers ready for any trace output.
222
   Must be called prior to any other trace operation */
223
extern void trace_prefix PARAMS ((SIM_DESC sd,
224
                                  sim_cpu *cpu,
225
                                  sim_cia cia,
226
                                  address_word pc,
227
                                  int print_linenum_p,
228
                                  const char *file_name,
229
                                  int line_nr,
230
                                  const char *fmt,
231
                                  ...))
232
       __attribute__((format (printf, 8, 9)));
233
 
234
/* Generic trace print, assumes trace_prefix() has been called */
235
 
236
extern void trace_generic PARAMS ((SIM_DESC sd,
237
                                   sim_cpu *cpu,
238
                                   int trace_idx,
239
                                   const char *fmt,
240
                                   ...))
241
     __attribute__((format (printf, 4, 5)));
242
 
243
/* Trace a varying number of word sized inputs/outputs.  trace_result*
244
   must be called to close the trace operation. */
245
 
246
extern void trace_input0 PARAMS ((SIM_DESC sd,
247
                                  sim_cpu *cpu,
248
                                  int trace_idx));
249
 
250
extern void trace_input_word1 PARAMS ((SIM_DESC sd,
251
                                       sim_cpu *cpu,
252
                                       int trace_idx,
253
                                       unsigned_word d0));
254
 
255
extern void trace_input_word2 PARAMS ((SIM_DESC sd,
256
                                       sim_cpu *cpu,
257
                                       int trace_idx,
258
                                       unsigned_word d0,
259
                                       unsigned_word d1));
260
 
261
extern void trace_input_word3 PARAMS ((SIM_DESC sd,
262
                                       sim_cpu *cpu,
263
                                       int trace_idx,
264
                                       unsigned_word d0,
265
                                       unsigned_word d1,
266
                                       unsigned_word d2));
267
 
268
extern void trace_input_word4 PARAMS ((SIM_DESC sd,
269
                                       sim_cpu *cpu,
270
                                       int trace_idx,
271
                                       unsigned_word d0,
272
                                       unsigned_word d1,
273
                                       unsigned_word d2,
274
                                       unsigned_word d3));
275
 
276
extern void trace_input_addr1 PARAMS ((SIM_DESC sd,
277
                                       sim_cpu *cpu,
278
                                       int trace_idx,
279
                                       address_word d0));
280
 
281
extern void trace_input_bool1 PARAMS ((SIM_DESC sd,
282
                                       sim_cpu *cpu,
283
                                       int trace_idx,
284
                                       int d0));
285
 
286
extern void trace_input_fp1 PARAMS ((SIM_DESC sd,
287
                                     sim_cpu *cpu,
288
                                     int trace_idx,
289
                                     fp_word f0));
290
 
291
extern void trace_input_fp2 PARAMS ((SIM_DESC sd,
292
                                     sim_cpu *cpu,
293
                                     int trace_idx,
294
                                     fp_word f0,
295
                                     fp_word f1));
296
 
297
extern void trace_input_fp3 PARAMS ((SIM_DESC sd,
298
                                     sim_cpu *cpu,
299
                                     int trace_idx,
300
                                     fp_word f0,
301
                                     fp_word f1,
302
                                     fp_word f2));
303
 
304
extern void trace_input_fpu1 PARAMS ((SIM_DESC sd,
305
                                     sim_cpu *cpu,
306
                                     int trace_idx,
307
                                     struct _sim_fpu *f0));
308
 
309
extern void trace_input_fpu2 PARAMS ((SIM_DESC sd,
310
                                     sim_cpu *cpu,
311
                                     int trace_idx,
312
                                     struct _sim_fpu *f0,
313
                                     struct _sim_fpu *f1));
314
 
315
extern void trace_input_fpu3 PARAMS ((SIM_DESC sd,
316
                                     sim_cpu *cpu,
317
                                     int trace_idx,
318
                                     struct _sim_fpu *f0,
319
                                     struct _sim_fpu *f1,
320
                                     struct _sim_fpu *f2));
321
 
322
/* Other trace_input{_<fmt><nr-inputs>} functions can go here */
323
 
324
extern void trace_result0 PARAMS ((SIM_DESC sd,
325
                                   sim_cpu *cpu,
326
                                   int trace_idx));
327
 
328
extern void trace_result_word1 PARAMS ((SIM_DESC sd,
329
                                        sim_cpu *cpu,
330
                                        int trace_idx,
331
                                        unsigned_word r0));
332
 
333
extern void trace_result_word2 PARAMS ((SIM_DESC sd,
334
                                        sim_cpu *cpu,
335
                                        int trace_idx,
336
                                        unsigned_word r0,
337
                                        unsigned_word r1));
338
 
339
extern void trace_result_word4 PARAMS ((SIM_DESC sd,
340
                                        sim_cpu *cpu,
341
                                        int trace_idx,
342
                                        unsigned_word r0,
343
                                        unsigned_word r1,
344
                                        unsigned_word r2,
345
                                        unsigned_word r3));
346
 
347
extern void trace_result_bool1 PARAMS ((SIM_DESC sd,
348
                                        sim_cpu *cpu,
349
                                        int trace_idx,
350
                                        int r0));
351
 
352
extern void trace_result_addr1 PARAMS ((SIM_DESC sd,
353
                                        sim_cpu *cpu,
354
                                        int trace_idx,
355
                                        address_word r0));
356
 
357
extern void trace_result_fp1 PARAMS ((SIM_DESC sd,
358
                                      sim_cpu *cpu,
359
                                      int trace_idx,
360
                                      fp_word f0));
361
 
362
extern void trace_result_fp2 PARAMS ((SIM_DESC sd,
363
                                      sim_cpu *cpu,
364
                                      int trace_idx,
365
                                      fp_word f0,
366
                                      fp_word f1));
367
 
368
extern void trace_result_fpu1 PARAMS ((SIM_DESC sd,
369
                                       sim_cpu *cpu,
370
                                       int trace_idx,
371
                                       struct _sim_fpu *f0));
372
 
373
extern void trace_result_string1 PARAMS ((SIM_DESC sd,
374
                                          sim_cpu *cpu,
375
                                          int trace_idx,
376
                                          char *str0));
377
 
378
extern void trace_result_word1_string1 PARAMS ((SIM_DESC sd,
379
                                                sim_cpu *cpu,
380
                                                int trace_idx,
381
                                                unsigned_word r0,
382
                                                char *s0));
383
 
384
/* Other trace_result{_<type><nr-results>} */
385
 
386
 
387
/* Macro's for tracing ALU instructions */
388
 
389
#define TRACE_ALU_INPUT0() \
390
do { \
391
  if (TRACE_ALU_P (CPU)) \
392
    trace_input0 (SD, CPU, TRACE_ALU_IDX); \
393
} while (0)
394
 
395
#define TRACE_ALU_INPUT1(V0) \
396
do { \
397
  if (TRACE_ALU_P (CPU)) \
398
    trace_input_word1 (SD, CPU, TRACE_ALU_IDX, (V0)); \
399
} while (0)
400
 
401
#define TRACE_ALU_INPUT2(V0,V1) \
402
do { \
403
  if (TRACE_ALU_P (CPU)) \
404
    trace_input_word2 (SD, CPU, TRACE_ALU_IDX, (V0), (V1)); \
405
} while (0)
406
 
407
#define TRACE_ALU_INPUT3(V0,V1,V2) \
408
do { \
409
  if (TRACE_ALU_P (CPU)) \
410
    trace_input_word3 (SD, CPU, TRACE_ALU_IDX, (V0), (V1), (V2)); \
411
} while (0)
412
 
413
#define TRACE_ALU_INPUT4(V0,V1,V2,V3) \
414
do { \
415
  if (TRACE_ALU_P (CPU)) \
416
    trace_input_word4 (SD, CPU, TRACE_ALU_IDX, (V0), (V1), (V2), (V3)); \
417
} while (0)
418
 
419
#define TRACE_ALU_RESULT(R0) TRACE_ALU_RESULT1(R0)
420
 
421
#define TRACE_ALU_RESULT0() \
422
do { \
423
  if (TRACE_ALU_P (CPU)) \
424
    trace_result0 (SD, CPU, TRACE_ALU_IDX); \
425
} while (0)
426
 
427
#define TRACE_ALU_RESULT1(R0) \
428
do { \
429
  if (TRACE_ALU_P (CPU)) \
430
    trace_result_word1 (SD, CPU, TRACE_ALU_IDX, (R0)); \
431
} while (0)
432
 
433
#define TRACE_ALU_RESULT2(R0,R1) \
434
do { \
435
  if (TRACE_ALU_P (CPU)) \
436
    trace_result_word2 (SD, CPU, TRACE_ALU_IDX, (R0), (R1)); \
437
} while (0)
438
 
439
#define TRACE_ALU_RESULT4(R0,R1,R2,R3) \
440
do { \
441
  if (TRACE_ALU_P (CPU)) \
442
    trace_result_word4 (SD, CPU, TRACE_ALU_IDX, (R0), (R1), (R2), (R3)); \
443
} while (0)
444
 
445
 
446
/* Macro's for tracing FPU instructions */
447
 
448
#define TRACE_FP_INPUT0() \
449
do { \
450
  if (TRACE_FPU_P (CPU)) \
451
    trace_input0 (SD, CPU, TRACE_FPU_IDX); \
452
} while (0)
453
 
454
#define TRACE_FP_INPUT1(V0) \
455
do { \
456
  if (TRACE_FPU_P (CPU)) \
457
    trace_input_fp1 (SD, CPU, TRACE_FPU_IDX, (V0)); \
458
} while (0)
459
 
460
#define TRACE_FP_INPUT2(V0,V1) \
461
do { \
462
  if (TRACE_FPU_P (CPU)) \
463
    trace_input_fp2 (SD, CPU, TRACE_FPU_IDX, (V0), (V1)); \
464
} while (0)
465
 
466
#define TRACE_FP_INPUT3(V0,V1,V2) \
467
do { \
468
  if (TRACE_FPU_P (CPU)) \
469
    trace_input_fp3 (SD, CPU, TRACE_FPU_IDX, (V0), (V1), (V2)); \
470
} while (0)
471
 
472
#define TRACE_FP_INPUT_WORD1(V0) \
473
do { \
474
  if (TRACE_FPU_P (CPU)) \
475
    trace_input_word1 (SD, CPU, TRACE_FPU_IDX, (V0)); \
476
} while (0)
477
 
478
#define TRACE_FP_RESULT(R0) \
479
do { \
480
  if (TRACE_FPU_P (CPU)) \
481
    trace_result_fp1 (SD, CPU, TRACE_FPU_IDX, (R0)); \
482
} while (0)
483
 
484
#define TRACE_FP_RESULT2(R0,R1) \
485
do { \
486
  if (TRACE_FPU_P (CPU)) \
487
    trace_result_fp2 (SD, CPU, TRACE_FPU_IDX, (R0), (R1)); \
488
} while (0)
489
 
490
#define TRACE_FP_RESULT_BOOL(R0) \
491
do { \
492
  if (TRACE_FPU_P (CPU)) \
493
    trace_result_bool1 (SD, CPU, TRACE_FPU_IDX, (R0)); \
494
} while (0)
495
 
496
#define TRACE_FP_RESULT_WORD(R0) \
497
do { \
498
  if (TRACE_FPU_P (CPU)) \
499
    trace_result_word1 (SD, CPU, TRACE_FPU_IDX, (R0)); \
500
} while (0)
501
 
502
 
503
/* Macros for tracing branches */
504
 
505
#define TRACE_BRANCH_INPUT(COND) \
506
do { \
507
  if (TRACE_BRANCH_P (CPU)) \
508
    trace_input_bool1 (SD, CPU, TRACE_BRANCH_IDX, (COND)); \
509
} while (0)
510
 
511
#define TRACE_BRANCH_RESULT(DEST) \
512
do { \
513
  if (TRACE_BRANCH_P (CPU)) \
514
    trace_result_addr1 (SD, CPU, TRACE_BRANCH_IDX, (DEST)); \
515
} while (0)
516
 
517
 
518
/* The function trace_one_insn has been replaced by the function pair
519
   trace_prefix() + trace_generic() */
520
extern void trace_one_insn PARAMS ((SIM_DESC sd,
521
                                    sim_cpu * cpu,
522
                                    address_word cia,
523
                                    int print_linenum_p,
524
                                    const char *file_name,
525
                                    int line_nr,
526
                                    const char *unit,
527
                                    const char *fmt,
528
                                    ...))
529
     __attribute__((format (printf, 8, 9)));
530
 
531
extern void trace_printf PARAMS ((SIM_DESC, sim_cpu *, const char *, ...))
532
     __attribute__((format (printf, 3, 4)));
533
 
534
extern void trace_vprintf PARAMS ((SIM_DESC, sim_cpu *, const char *, va_list));
535
 
536
/* Debug support.
537
   This is included here because there isn't enough of it to justify
538
   a sim-debug.h.  */
539
 
540
/* Return non-zero if debugging of IDX for CPU is enabled.  */
541
#define DEBUG_P(cpu, idx) \
542
((WITH_DEBUG & (1 << (idx))) != 0 \
543
 && CPU_DEBUG_FLAGS (cpu)[idx] != 0)
544
 
545
/* Non-zero if "--debug-insn" specified.  */
546
#define DEBUG_INSN_P(cpu) DEBUG_P (cpu, DEBUG_INSN_IDX)
547
 
548
extern void debug_printf PARAMS ((sim_cpu *, const char *, ...))
549
     __attribute__((format (printf, 2, 3)));
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#endif /* SIM_TRACE_H */

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