1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
|
/* Simulator tracing/debugging support.
Copyright (C) 1997 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "sim-main.h"
#include "sim-io.h"
#include "sim-options.h"
#include "bfd.h"
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#ifndef SIZE_PHASE
#define SIZE_PHASE 8
#endif
#ifndef SIZE_LOCATION
#define SIZE_LOCATION 20
#endif
#ifndef SIZE_PC
#define SIZE_PC 6
#endif
#ifndef SIZE_LINE_NUMBER
#define SIZE_LINE_NUMBER 4
#endif
static MODULE_UNINSTALL_FN trace_uninstall;
static DECLARE_OPTION_HANDLER (trace_option_handler);
enum {
OPTION_TRACE_INSN = OPTION_START,
OPTION_TRACE_DECODE,
OPTION_TRACE_EXTRACT,
OPTION_TRACE_LINENUM,
OPTION_TRACE_MEMORY,
OPTION_TRACE_MODEL,
OPTION_TRACE_ALU,
OPTION_TRACE_CORE,
OPTION_TRACE_EVENTS,
OPTION_TRACE_FPU,
OPTION_TRACE_BRANCH,
OPTION_TRACE_SEMANTICS,
OPTION_TRACE_FILE
};
static const OPTION trace_options[] =
{
{ {"trace", no_argument, NULL, 't'},
't', NULL, "Perform tracing",
trace_option_handler },
{ {"trace-insn", no_argument, NULL, OPTION_TRACE_INSN},
'\0', NULL, "Perform instruction tracing",
trace_option_handler },
{ {"trace-decode", no_argument, NULL, OPTION_TRACE_DECODE},
'\0', NULL, "Perform instruction decoding tracing",
trace_option_handler },
{ {"trace-extract", no_argument, NULL, OPTION_TRACE_EXTRACT},
'\0', NULL, "Perform instruction extraction tracing",
trace_option_handler },
{ {"trace-linenum", no_argument, NULL, OPTION_TRACE_LINENUM},
'\0', NULL, "Perform line number tracing (implies --trace-insn)",
trace_option_handler },
{ {"trace-memory", no_argument, NULL, OPTION_TRACE_MEMORY},
'\0', NULL, "Perform memory tracing",
trace_option_handler },
{ {"trace-model", no_argument, NULL, OPTION_TRACE_MODEL},
'\0', NULL, "Perform model tracing",
trace_option_handler },
{ {"trace-alu", no_argument, NULL, OPTION_TRACE_ALU},
'\0', NULL, "Perform ALU tracing",
trace_option_handler },
{ {"trace-core", no_argument, NULL, OPTION_TRACE_CORE},
'\0', NULL, "Perform CORE tracing",
trace_option_handler },
{ {"trace-events", no_argument, NULL, OPTION_TRACE_EVENTS},
'\0', NULL, "Perform EVENTS tracing",
trace_option_handler },
{ {"trace-fpu", no_argument, NULL, OPTION_TRACE_FPU},
'\0', NULL, "Perform FPU tracing",
trace_option_handler },
{ {"trace-branch", no_argument, NULL, OPTION_TRACE_BRANCH},
'\0', NULL, "Perform branch tracing",
trace_option_handler },
{ {"trace-semantics", no_argument, NULL, OPTION_TRACE_SEMANTICS},
'\0', NULL, "Perform ALU, FPU, and MEMORY tracing",
trace_option_handler },
{ {"trace-file", required_argument, NULL, OPTION_TRACE_FILE},
'\0', "FILE NAME", "Specify tracing output file",
trace_option_handler },
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
};
static SIM_RC
trace_option_handler (sd, opt, arg)
SIM_DESC sd;
int opt;
char *arg;
{
int i,n;
switch (opt)
{
case 't' :
if (! WITH_TRACE)
sim_io_eprintf (sd, "Tracing not compiled in, `-t' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
for (i = 0; i < MAX_TRACE_VALUES; ++i)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[i] = 1;
STATE_CORE(sd)->trace = 1;
STATE_EVENTS(sd)->trace = 1;
}
break;
case OPTION_TRACE_INSN :
if (WITH_TRACE_INSN_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_INSN_IDX] = 1;
else
sim_io_eprintf (sd, "Instruction tracing not compiled in, `--trace-insn' ignored\n");
break;
case OPTION_TRACE_DECODE :
if (WITH_TRACE_DECODE_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_DECODE_IDX] = 1;
else
sim_io_eprintf (sd, "Decode tracing not compiled in, `--trace-decode' ignored\n");
break;
case OPTION_TRACE_EXTRACT :
if (WITH_TRACE_EXTRACT_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_EXTRACT_IDX] = 1;
else
sim_io_eprintf (sd, "Extract tracing not compiled in, `--trace-extract' ignored\n");
break;
case OPTION_TRACE_LINENUM :
if (WITH_TRACE_LINENUM_P && WITH_TRACE_INSN_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
{
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_LINENUM_IDX] = 1;
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_INSN_IDX] = 1;
}
else
sim_io_eprintf (sd, "Line number or instruction tracing not compiled in, `--trace-linenum' ignored\n");
break;
case OPTION_TRACE_MEMORY :
if (WITH_TRACE_MEMORY_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_MEMORY_IDX] = 1;
else
sim_io_eprintf (sd, "Memory tracing not compiled in, `--trace-memory' ignored\n");
break;
case OPTION_TRACE_MODEL :
if (WITH_TRACE_MODEL_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_MODEL_IDX] = 1;
else
sim_io_eprintf (sd, "Model tracing not compiled in, `--trace-model' ignored\n");
break;
case OPTION_TRACE_ALU :
if (WITH_TRACE_ALU_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_ALU_IDX] = 1;
else
sim_io_eprintf (sd, "ALU tracing not compiled in, `--trace-alu' ignored\n");
break;
case OPTION_TRACE_CORE :
if (WITH_TRACE_CORE_P)
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_CORE_IDX] = 1;
STATE_CORE(sd)->trace = 1;
}
else
sim_io_eprintf (sd, "CORE tracing not compiled in, `--trace-core' ignored\n");
break;
case OPTION_TRACE_EVENTS :
if (WITH_TRACE_EVENTS_P)
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_EVENTS_IDX] = 1;
STATE_EVENTS(sd)->trace = 1;
}
else
sim_io_eprintf (sd, "EVENTS tracing not compiled in, `--trace-events' ignored\n");
break;
case OPTION_TRACE_FPU :
if (WITH_TRACE_FPU_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_FPU_IDX] = 1;
else
sim_io_eprintf (sd, "FPU tracing not compiled in, `--trace-fpu' ignored\n");
break;
case OPTION_TRACE_BRANCH :
if (WITH_TRACE_BRANCH_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_FPU_IDX] = 1;
else
sim_io_eprintf (sd, "Branch tracing not compiled in, `--trace-branch' ignored\n");
break;
case OPTION_TRACE_SEMANTICS :
if (WITH_TRACE_ALU_P && WITH_TRACE_FPU_P && WITH_TRACE_MEMORY_P)
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
{
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_ALU_IDX] = 1;
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_FPU_IDX] = 1;
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_MEMORY_IDX] = 1;
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_BRANCH_IDX] = 1;
}
else
sim_io_eprintf (sd, "Alu, fpu, and/or memory tracing not compiled in, `--trace-semantics' ignored\n");
break;
case OPTION_TRACE_FILE :
if (! WITH_TRACE)
sim_io_eprintf (sd, "Tracing not compiled in, `--trace-file' ignored\n");
else
{
FILE *f = fopen (arg, "w");
if (f == NULL)
{
sim_io_eprintf (sd, "Unable to open trace output file `%s'\n", arg);
return SIM_RC_FAIL;
}
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
TRACE_FILE (CPU_TRACE_DATA (STATE_CPU (sd, n))) = f;
}
break;
}
return SIM_RC_OK;
}
/* Install tracing support. */
SIM_RC
trace_install (SIM_DESC sd)
{
int i;
sim_add_option_table (sd, trace_options);
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
memset (CPU_TRACE_DATA (STATE_CPU (sd, i)), 0,
sizeof (* CPU_TRACE_DATA (STATE_CPU (sd, i))));
sim_module_add_uninstall_fn (sd, trace_uninstall);
return SIM_RC_OK;
}
static void
trace_uninstall (SIM_DESC sd)
{
int i;
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
{
TRACE_DATA *data = CPU_TRACE_DATA (STATE_CPU (sd, i));
if (TRACE_FILE (data) != NULL)
fclose (TRACE_FILE (data));
}
}
void
trace_one_insn (SIM_DESC sd, sim_cpu *cpu, address_word pc,
int line_p, const char *filename, int linenum,
const char *phase_wo_colon, const char *name)
{
char phase[SIZE_PHASE+2];
strncpy (phase, phase_wo_colon, SIZE_PHASE);
strcat (phase, ":");
if (!line_p)
trace_printf(sd, cpu, "%-*s %s:%-*d 0x%.*lx %s\n",
SIZE_PHASE+1, phase,
filename,
SIZE_LINE_NUMBER, linenum,
SIZE_PC, (long)pc,
name);
else
{
char buf[256];
buf[0] = 0;
if (STATE_TEXT_SECTION (CPU_STATE (cpu))
&& pc >= STATE_TEXT_START (CPU_STATE (cpu))
&& pc < STATE_TEXT_END (CPU_STATE (cpu)))
{
const char *pc_filename = (const char *)0;
const char *pc_function = (const char *)0;
unsigned int pc_linenum = 0;
if (bfd_find_nearest_line (STATE_PROG_BFD (CPU_STATE (cpu)),
STATE_TEXT_SECTION (CPU_STATE (cpu)),
(struct symbol_cache_entry **) 0,
pc - STATE_TEXT_START (CPU_STATE (cpu)),
&pc_filename, &pc_function, &pc_linenum))
{
char *p = buf;
if (pc_linenum)
{
sprintf (p, "#%-*d ", SIZE_LINE_NUMBER, pc_linenum);
p += strlen (p);
}
else
{
sprintf (p, "%-*s ", SIZE_LINE_NUMBER+1, "---");
p += SIZE_LINE_NUMBER+2;
}
if (pc_function)
{
sprintf (p, "%s ", pc_function);
p += strlen (p);
}
else if (pc_filename)
{
char *q = (char *) strrchr (pc_filename, '/');
sprintf (p, "%s ", (q) ? q+1 : pc_filename);
p += strlen (p);
}
if (*p == ' ')
*p = '\0';
}
}
trace_printf (sd, cpu, "%-*s 0x%.*x %-*.*s %s\n",
SIZE_PHASE+1, phase,
SIZE_PC, (unsigned) pc,
SIZE_LOCATION, SIZE_LOCATION, buf,
name);
}
}
void
trace_printf VPARAMS ((SIM_DESC sd, sim_cpu *cpu, const char *fmt, ...))
{
#ifndef __STDC__
SIM_DESC sd;
sim_cpu *cpu;
const char *fmt;
#endif
va_list ap;
VA_START (ap, fmt);
#ifndef __STDC__
sd = va_arg (ap, SIM_DESC);
cpu = va_arg (ap, sim_cpu *);
fmt = va_arg (ap, const char *);
#endif
if (cpu != NULL && TRACE_FILE (CPU_TRACE_DATA (cpu)) != NULL)
vfprintf (TRACE_FILE (CPU_TRACE_DATA (cpu)), fmt, ap);
else
sim_io_evprintf (sd, fmt, ap);
va_end (ap);
}
void
debug_printf VPARAMS ((sim_cpu *cpu, const char *fmt, ...))
{
#ifndef __STDC__
sim_cpu *cpu;
const char *fmt;
#endif
va_list ap;
VA_START (ap, fmt);
#ifndef __STDC__
cpu = va_arg (ap, sim_cpu *);
fmt = va_arg (ap, const char *);
#endif
if (CPU_DEBUG_FILE (cpu) == NULL)
(* STATE_CALLBACK (CPU_STATE (cpu))->evprintf_filtered)
(STATE_CALLBACK (CPU_STATE (cpu)), fmt, ap);
else
vfprintf (CPU_DEBUG_FILE (cpu), fmt, ap);
va_end (ap);
}
|
