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
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
|
#define TARGET_MIPS
#include <platform.h>
#include <imagehlp.h>
#include <crash.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "dumpexam.h"
#define GetContext(p,c) GetContextMIPS(p,c)
#define MAX_STACK_FRAMES 100
#define SAVE_EBP(f) f.Reserved[0]
#define TRAP_TSS(f) f.Reserved[1]
#define TRAP_EDITED(f) f.Reserved[1]
#define SAVE_TRAP(f) f.Reserved[2]
extern FILE *FileOut;
VOID
PrintRegisters(
ULONG Processor,
PCONTEXT Context
);
static
DWORD
GetStackTrace(
PDUMP_HEADER DmpHeader,
ULONG Processor,
LPSTACKFRAME Frames,
ULONG MaxFrames,
PCONTEXT Context
)
{
BOOL rVal;
STACKFRAME StackFrame;
DWORD FrameCnt;
FrameCnt = 0;
ZeroMemory( &StackFrame, sizeof(STACKFRAME) );
do {
rVal = StackWalk(
IMAGE_FILE_MACHINE_R4000,
(HANDLE)DmpHeader,
(HANDLE)Processor,
&StackFrame,
Context,
SwReadMemory,
SwFunctionTableAccess,
SwGetModuleBase,
NULL
);
if (rVal) {
CopyMemory(
&Frames[FrameCnt],
&StackFrame,
sizeof(STACKFRAME)
);
FrameCnt += 1;
}
} while( rVal && FrameCnt < MaxFrames );
return FrameCnt;
}
static
VOID
PrintStackTrace(
PDUMP_HEADER DmpHeader,
ULONG Processor,
LPSTACKFRAME StackFrames,
ULONG FrameCnt
)
{
PFPO_DATA pFpoData;
PIMAGEHLP_SYMBOL Symbol;
ULONG i;
ULONG Displacement;
CHAR SymBuf[512];
PrintHeading( "Stack Trace" );
fprintf( FileOut, "Callee-SP Arguments to Callee Call Site\n");
for (i=0; i<FrameCnt; i++) {
if (SymGetSymFromAddr( DmpHeader, StackFrames[i].AddrPC.Offset, &Displacement, sym )) {
strcpy( SymBuf, sym->Name );
} else {
sprintf( SymBuf, "0x%08x", StackFrames[i].AddrPC.Offset );
}
fprintf(
FileOut,
"%08lx %08lx : %08lx %08lx %08lx %08lx %s",
StackFrames[i].AddrFrame.Offset,
StackFrames[i].AddrReturn.Offset,
StackFrames[i].Params[0],
StackFrames[i].Params[1],
StackFrames[i].Params[2],
StackFrames[i].Params[3],
SymBuf
);
if (Displacement) {
fprintf( FileOut, "+0x%x", Displacement );
}
fprintf( FileOut, "\n" );
}
fprintf( FileOut, "\n" );
}
VOID
PrintStackTraceMIPS(
PDUMP_HEADER DmpHeader,
ULONG Processor
)
{
PFPO_DATA pFpoData;
CONTEXT Context;
STACKFRAME StackFrames[MAX_STACK_FRAMES];
ULONG FrameCnt;
ULONG i;
CHAR buf[32];
GetContext( Processor, &Context );
FrameCnt = GetStackTrace(
DmpHeader,
Processor,
StackFrames,
MAX_STACK_FRAMES,
&Context
);
PrintStackTrace(
DmpHeader,
Processor,
StackFrames,
FrameCnt
);
}
VOID
BugCheckHeuristicsMIPS(
PDUMP_HEADER DmpHeader,
ULONG Processor
)
{
STACKFRAME StackFrames[MAX_STACK_FRAMES];
ULONG FrameCnt;
PIMAGEHLP_SYMBOL Symbol;
ULONG i;
ULONG cb;
ULONG Ptrs[2];
CHAR buf[32];
CONTEXT Context;
if (DmpHeader->BugCheckCode == KMODE_EXCEPTION_NOT_HANDLED) {
PrintHeading(
"Dump Analysis Heuristics for Bugcode %s",
GetBugText(DmpHeader->BugCheckCode)
);
fprintf(
FileOut,
"Exception Code: 0x%08x\n",
DmpHeader->BugCheckParameter1
);
fprintf(
FileOut,
"Address of Exception: 0x%08x\n",
DmpHeader->BugCheckParameter2
);
fprintf(
FileOut,
"Parameter #0: 0x%08x\n",
DmpHeader->BugCheckParameter3
);
fprintf(
FileOut,
"Parameter #1: 0x%08x\n\n",
DmpHeader->BugCheckParameter4
);
if (!SymGetSymFromName( DmpHeader, "PspUnhandledExceptionInSystemThread", sym )) {
return;
}
GetContext( Processor, &Context );
FrameCnt = GetStackTrace(
DmpHeader,
Processor,
StackFrames,
MAX_STACK_FRAMES,
&Context
);
for (i=0; i<FrameCnt; i++) {
if (StackFrames[i].AddrPC.Offset >= sym->Address &&
StackFrames[i].AddrPC.Offset < sym->Address + sym->Size) {
break;
}
}
if (i == FrameCnt) {
return;
}
cb = DmpReadMemory( (PVOID)StackFrames[i].Params[0], Ptrs, sizeof(Ptrs) );
if (cb != sizeof(Ptrs)) {
return;
}
GetContext( Processor, &Context );
sprintf( buf, "%08x", Ptrs[0] );
DoExtension( "exr", buf, Processor, (DWORD)GetRegisterValue( &Context, REG_IP ) );
cb = DmpReadMemory( (PVOID)Ptrs[1], &Context, sizeof(Context) );
if (cb != sizeof(Context)) {
return;
}
PrintRegisters( Processor, &Context );
FrameCnt = GetStackTrace(
DmpHeader,
Processor,
StackFrames,
MAX_STACK_FRAMES,
&Context
);
PrintStackTrace(
DmpHeader,
Processor,
StackFrames,
FrameCnt
);
DoDisassemble( (DWORD)Context.XFir );
}
if (DmpHeader->BugCheckCode == IRQL_NOT_LESS_OR_EQUAL) {
PrintHeading(
"Dump Analysis Heuristics for Bugcode %s",
GetBugText(DmpHeader->BugCheckCode)
);
fprintf(
FileOut,
"Invalid Address Referenced: 0x%08x\n",
DmpHeader->BugCheckParameter1
);
fprintf(
FileOut,
"IRQL: %d\n",
DmpHeader->BugCheckParameter2
);
fprintf(
FileOut,
"Access Type: %s\n",
DmpHeader->BugCheckParameter3 ? "Read" : "Write"
);
fprintf(
FileOut,
"Code Address: 0x%08x\n\n",
DmpHeader->BugCheckParameter4
);
sprintf( buf, "%08x", DmpHeader->BugCheckParameter1 );
GetContext( Processor, &Context );
DoExtension( "pool", buf, Processor, (DWORD)GetRegisterValue( &Context, REG_IP ) );
}
}
ULONGLONG
GetRegisterValueMIPS(
PCONTEXT Context,
ULONG Register
)
{
ULONGLONG Value = 0;
switch( Register ) {
case REG_IP:
Value = Context->XFir;
break;
case REG_FP:
Value = Context->XIntSp;
break;
case REG_SP:
Value = Context->XIntSp;
break;
}
return Value;
}
VOID
GetContextMIPS(
ULONG Processor,
PVOID Context
)
{
DmpGetContext( Processor, Context );
}
#define FLAGCU0 1
#define FLAGCU1 2
#define FLAGCU2 3
#define FLAGCU3 4
#define FLAGERL 5
#define FLAGEXL 6
#define FLAGIE 7
#define FLAGIEC 8
#define FLAGIEO 9
#define FLAGIEP 10
#define FLAGINT0 11
#define FLAGINT1 12
#define FLAGINT2 13
#define FLAGINT3 14
#define FLAGINT4 15
#define FLAGINT5 16
#define FLAGKSU 17
#define FLAGKUC 18
#define FLAGKUO 19
#define FLAGKUP 20
#define FLAGSW0 21
#define FLAGSW1 22
static
ULONG
GetFlag(
DWORD FlagsReg,
ULONG Flag
)
{
switch( Flag ) {
case FLAGCU3: return ((FlagsReg >> 31) & 1);
case FLAGCU2: return ((FlagsReg >> 30) & 1);
case FLAGCU1: return ((FlagsReg >> 29) & 1);
case FLAGCU0: return ((FlagsReg >> 28) & 1);
case FLAGINT5: return ((FlagsReg >> 15) & 1);
case FLAGINT4: return ((FlagsReg >> 14) & 1);
case FLAGINT3: return ((FlagsReg >> 13) & 1);
case FLAGINT2: return ((FlagsReg >> 12) & 1);
case FLAGINT1: return ((FlagsReg >> 11) & 1);
case FLAGINT0: return ((FlagsReg >> 10) & 1);
case FLAGSW1: return ((FlagsReg >> 8) & 1);
case FLAGSW0: return ((FlagsReg >> 9) & 1);
case FLAGERL: return ((FlagsReg >> 2) & 1);
case FLAGEXL: return ((FlagsReg >> 1) & 1);
case FLAGIE: return ((FlagsReg >> 0) & 1);
}
return 0;
}
static
VOID
PrintRegisters(
ULONG Processor,
PCONTEXT Context
)
{
PrintHeading( "Register Dump For Processor #%d", Processor );
fprintf( FileOut, "at=%016Lx v0=%016Lx v1=%016Lx\n",
Context->XIntAt,
Context->XIntV0,
Context->XIntV1
);
fprintf( FileOut, "a0=%016Lx a1=%016Lx a2=%016Lx\n",
Context->XIntA0,
Context->XIntA1,
Context->XIntA2
);
fprintf( FileOut, "a3=%016Lx t0=%016Lx t1=%016Lx\n",
Context->XIntA3,
Context->XIntT0,
Context->XIntT1
);
fprintf( FileOut, "t2=%016Lx t3=%016Lx t4=%016Lx\n",
Context->XIntT2,
Context->XIntT3,
Context->XIntT4
);
fprintf( FileOut, "t5=%016Lx t6=%016Lx t7=%016Lx\n",
Context->XIntT5,
Context->XIntT6,
Context->XIntT7
);
fprintf( FileOut, "s0=%016Lx s1=%016Lx s2=%016Lx\n",
Context->XIntS0,
Context->XIntS1,
Context->XIntS2
);
fprintf( FileOut, "s3=%016Lx s4=%016Lx s5=%016Lx\n",
Context->XIntS3,
Context->XIntS4,
Context->XIntS5
);
fprintf( FileOut, "s6=%016Lx s7=%016Lx t8=%016Lx\n",
Context->XIntS6,
Context->XIntS7,
Context->XIntT8
);
fprintf( FileOut, "t9=%016Lx k0=%016Lx k1=%016Lx\n",
Context->XIntT9,
Context->XIntK0,
Context->XIntK1
);
fprintf( FileOut, "gp=%016Lx sp=%016Lx s8=%016Lx\n",
Context->XIntGp,
Context->XIntSp,
Context->XIntS8
);
fprintf( FileOut, "ra=%016Lx lo=%016Lx hi=%016Lx\n",
Context->XIntRa,
Context->XIntLo,
Context->XIntHi
);
fprintf( FileOut, "fir=%08 psr=%08x\n",
Context->XFir,
Context->XPsr
);
fprintf(
FileOut,
"cu=%1lx%1lx%1lx%1lx intr(5:0)=%1lx%1lx%1lx%1lx%1lx%1lx ",
GetFlag(Context->XPsr,FLAGCU3),
GetFlag(Context->XPsr,FLAGCU2),
GetFlag(Context->XPsr,FLAGCU1),
GetFlag(Context->XPsr,FLAGCU0),
GetFlag(Context->XPsr,FLAGINT5),
GetFlag(Context->XPsr,FLAGINT4),
GetFlag(Context->XPsr,FLAGINT3),
GetFlag(Context->XPsr,FLAGINT2),
GetFlag(Context->XPsr,FLAGINT1),
GetFlag(Context->XPsr,FLAGINT0)
);
fprintf(
FileOut,
"sw(1:0)=%1lx%1lx ",
GetFlag(Context->XPsr,FLAGSW1),
GetFlag(Context->XPsr,FLAGSW0)
);
fprintf(
FileOut,
"ksu=%01lx erl=%01lx exl=%01lx ie=%01lx\n",
GetFlag(Context->XPsr,FLAGKSU),
GetFlag(Context->XPsr,FLAGERL),
GetFlag(Context->XPsr,FLAGEXL),
GetFlag(Context->XPsr,FLAGIE)
);
fprintf( FileOut, "\n" );
}
VOID
PrintRegistersMIPS(
ULONG Processor
)
{
CONTEXT Context;
GetContext( Processor, &Context );
PrintRegisters( Processor, &Context );
}
|
