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
|
#include "sys.h"
#include "PR/os_internal.h"
#include "mods.h"
FaultMgr gFaultMgr;
u8 sFaultCharIndex[0x80] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x29, 0xFF, 0xFF, 0xFF, 0x2B,
0xFF, 0xFF, 0x25, 0x26, 0xFF, 0x2A, 0xFF, 0x27, 0x2C, 0xFF, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x24, 0xFF, 0xFF, 0xFF, 0xFF, 0x28, 0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14,
0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A,
0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
};
s32 sFaultCharPixelFlags[0x40] = {
0x70871C30, 0x8988A250, 0x88808290, 0x88831C90, 0x888402F8, 0x88882210, 0x71CF9C10, 0xF9CF9C70,
0x8228A288, 0xF200A288, 0x0BC11C78, 0x0A222208, 0x8A222288, 0x71C21C70, 0x23C738F8, 0x5228A480,
0x8A282280, 0x8BC822F0, 0xFA282280, 0x8A28A480, 0x8BC738F8, 0xF9C89C08, 0x82288808, 0x82088808,
0xF2EF8808, 0x82288888, 0x82288888, 0x81C89C70, 0x8A08A270, 0x920DA288, 0xA20AB288, 0xC20AAA88,
0xA208A688, 0x9208A288, 0x8BE8A270, 0xF1CF1CF8, 0x8A28A220, 0x8A28A020, 0xF22F1C20, 0x82AA0220,
0x82492220, 0x81A89C20, 0x8A28A288, 0x8A28A288, 0x8A289488, 0x8A2A8850, 0x894A9420, 0x894AA220,
0x70852220, 0xF8011000, 0x08020800, 0x10840400, 0x20040470, 0x40840400, 0x80020800, 0xF8011000,
0x70800000, 0x88822200, 0x08820400, 0x108F8800, 0x20821000, 0x00022200, 0x20800020, 0x00000000,
};
const char* sFaultCauses[18] = {
"Interrupt",
"TLB modification",
"TLB exception on load",
"TLB exception on store",
"Address error on load",
"Address error on store",
"Bus error on inst.",
"Bus error on data",
"System call exception",
"Breakpoint exception",
"Reserved instruction",
"Coprocessor unusable",
"Arithmetic overflow",
"Trap exception",
"Virtual coherency on inst.",
"Floating point exception",
"Watchpoint exception",
"Virtual coherency on data",
};
const char* sFloatExceptions[6] = {
"Unimplemented operation", "Invalid operation", "Division by zero", "Overflow", "Underflow", "Inexact operation",
};
void Fault_FillRectangle(s32 xPos, s32 yPos, s32 width, s32 height) {
u16* pixel;
s32 i;
s32 j;
pixel = gFaultMgr.width * yPos + gFaultMgr.fb->data + xPos;
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++, pixel++) {
*pixel = ((*pixel & 0xE738) >> 2) | 1;
}
pixel += gFaultMgr.width - width;
}
}
void Fault_DisplayChar(s32 xPos, s32 yPos, s32 index) {
s32* charPixelFlags;
u16* pixel;
s32 i;
s32 j;
charPixelFlags = &sFaultCharPixelFlags[(index / 5) * 7];
pixel = gFaultMgr.width * yPos + gFaultMgr.fb->data + xPos;
for (i = 0; i < 7; i++) {
u32 bufferPixelFlag = 0x80000000 >> ((index % 5) * 6);
u32 charPixelFlag = *charPixelFlags++;
for (j = 0; j < 6; j++) {
if (bufferPixelFlag & charPixelFlag) {
*pixel = 0xFFFF;
} else {
*pixel = 0x0001;
}
pixel++;
bufferPixelFlag >>= 1;
}
pixel += gFaultMgr.width - 6;
}
}
char* Fault_PrOut(char* buffer, const char* fmt, size_t size) {
return (char*) memcpy(buffer, fmt, size) + size;
}
void Fault_Printf(s32 xPos, s32 yPos, const char* fmt, ...) {
u8* charPtr;
s32 i;
u8 buffer[0x100];
s32 charIndex;
va_list args;
va_start(args, fmt);
for (i = 0; i < 0x100; i++) {
buffer[i] = 0;
}
if (_Printf(Fault_PrOut, buffer, fmt, args) <= 0) {
return;
}
for (charPtr = buffer; *charPtr != 0; charPtr++) {
charIndex = sFaultCharIndex[*charPtr & 0x7F];
if (charIndex != 0xFF) {
Fault_DisplayChar(xPos, yPos, charIndex);
}
xPos += 6;
label:; // fake, probably
}
va_end(args);
}
void Fault_Wait(s32 msec) {
u64 time64 = MSEC_TO_CYCLES(msec);
osSetTime(0);
while (osGetTime() < time64) {
;
}
}
void Fault_DisplayFloatReg(s32 xPos, s32 yPos, s32 regNum, f32* regValue) {
u32 regAsInt = *(u32*) regValue;
s32 regExp = ((regAsInt & 0x7F800000) >> 0x17) - 0x7F;
if (((-0x7F < regExp) && (regExp < 0x80)) || (regAsInt == 0)) {
Fault_Printf(xPos, yPos, "F%02d:%.3e", regNum, *regValue);
} else {
Fault_Printf(xPos, yPos, "F%02d:---------", regNum);
}
}
void Fault_DisplayFloatException(u32 exceptFlags) {
s32 i;
u32 flag = 0x20000;
Fault_Printf(30, 160, "FPCSR:%08XH", exceptFlags);
for (i = 0; i < 6; i++, flag >>= 1) {
if (exceptFlags & flag) {
Fault_Printf(132, 160, "(%s)", sFloatExceptions[i]);
return;
}
}
}
#define CAUSE_INDEX(cause) ((cause >> CAUSE_EXCSHIFT) & (CAUSE_EXCMASK >> CAUSE_EXCSHIFT))
void Fault_DisplayDebugInfo(OSThread* thread) {
__OSThreadContext* context = &thread->context;
s16 causeIndex = CAUSE_INDEX(context->cause);
if (causeIndex == CAUSE_INDEX(EXC_WATCH)) {
causeIndex = 16;
}
if (causeIndex == CAUSE_INDEX(EXC_VCED)) {
causeIndex = 17;
}
Fault_Wait(3000);
Fault_FillRectangle(15, 15, SCREEN_WIDTH - 30, SCREEN_HEIGHT - 30);
Fault_Printf(30, 40, "THREAD:%d (%s)", thread->id, sFaultCauses[causeIndex]);
Fault_Printf(30, 50, "PC:%08XH SR:%08XH\tVA:%08XH", context->pc, context->sr, context->badvaddr);
osWritebackDCacheAll();
Fault_Printf(30, 60, "AT:%08XH V0:%08XH\tV1:%08XH", (s32) context->at, (s32) context->v0, (s32) context->v1);
Fault_Printf(30, 70, "A0:%08XH A1:%08XH\tA2:%08XH", (s32) context->a0, (s32) context->a1, (s32) context->a2);
Fault_Printf(30, 80, "A3:%08XH T0:%08XH\tT1:%08XH", (s32) context->a3, (s32) context->t0, (s32) context->t1);
Fault_Printf(30, 90, "T2:%08XH T3:%08XH\tT4:%08XH", (s32) context->t2, (s32) context->t3, (s32) context->t4);
Fault_Printf(30, 100, "T5:%08XH T6:%08XH\tT7:%08XH", (s32) context->t5, (s32) context->t6, (s32) context->t7);
Fault_Printf(30, 110, "S0:%08XH S1:%08XH\tS2:%08XH", (s32) context->s0, (s32) context->s1, (s32) context->s2);
Fault_Printf(30, 120, "S3:%08XH S4:%08XH\tS5:%08XH", (s32) context->s3, (s32) context->s4, (s32) context->s5);
Fault_Printf(30, 130, "S6:%08XH S7:%08XH\tT8:%08XH", (s32) context->s6, (s32) context->s7, (s32) context->t8);
Fault_Printf(30, 140, "T9:%08XH GP:%08XH\tSP:%08XH", (s32) context->t9, (s32) context->gp, (s32) context->sp);
Fault_Printf(30, 150, "S8:%08XH RA:%08XH", (s32) context->s8, (s32) context->ra);
Fault_DisplayFloatException(context->fpcsr);
osWritebackDCacheAll();
Fault_DisplayFloatReg(30, 170, 0, &context->fp0.f.f_even);
Fault_DisplayFloatReg(120, 170, 2, &context->fp2.f.f_even);
Fault_DisplayFloatReg(210, 170, 4, &context->fp4.f.f_even);
Fault_DisplayFloatReg(30, 180, 6, &context->fp6.f.f_even);
Fault_DisplayFloatReg(120, 180, 8, &context->fp8.f.f_even);
Fault_DisplayFloatReg(210, 180, 10, &context->fp10.f.f_even);
Fault_DisplayFloatReg(30, 190, 12, &context->fp12.f.f_even);
Fault_DisplayFloatReg(120, 190, 14, &context->fp14.f.f_even);
Fault_DisplayFloatReg(210, 190, 16, &context->fp16.f.f_even);
Fault_DisplayFloatReg(30, 200, 18, &context->fp18.f.f_even);
Fault_DisplayFloatReg(120, 200, 20, &context->fp20.f.f_even);
Fault_DisplayFloatReg(210, 200, 22, &context->fp22.f.f_even);
Fault_DisplayFloatReg(30, 210, 24, &context->fp24.f.f_even);
Fault_DisplayFloatReg(120, 210, 26, &context->fp26.f.f_even);
Fault_DisplayFloatReg(210, 210, 28, &context->fp28.f.f_even);
Fault_DisplayFloatReg(30, 220, 30, &context->fp30.f.f_even);
osWritebackDCacheAll();
osViBlack(false);
osViRepeatLine(false);
osViSwapBuffer(gFaultMgr.fb);
}
OSThread* func_80007CEC(void) {
OSThread* queue = __osGetActiveQueue();
while (queue->priority != -1) {
if ((queue->priority > 0) && (queue->priority < 0x7F) && (queue->flags & 3)) {
return queue;
}
queue = queue->tlnext;
}
return NULL;
}
void Fault_ThreadEntry(void* arg) {
OSMesg dummy;
OSThread* faultedThread;
s32 codeTimer;
s32 codeComplete;
u32 codeInput;
dummy = NULL;
codeComplete = 0;
codeInput = 0;
codeTimer = 0;
osSetEventMesg(OS_EVENT_CPU_BREAK, &gFaultMgr.mesgQueue, (OSMesg) FAULT_MESG_BREAK);
osSetEventMesg(OS_EVENT_FAULT, &gFaultMgr.mesgQueue, (OSMesg) FAULT_MESG_FAULT);
faultedThread = NULL;
while (faultedThread == NULL) {
MQ_WAIT_FOR_MESG(&gFaultMgr.mesgQueue, &dummy);
faultedThread = func_80007CEC();
}
Fault_Printf(300, 10, "-");
gControllerPlugged[0] = true;
#if MODS_AUTO_DEBUGGER == 0 // Instant crash debugger (no button combination needed)
while (!codeComplete) {
osSendMesg(&gSerialThreadMesgQueue, (OSMesg) SI_READ_CONTROLLER, OS_MESG_NOBLOCK);
MQ_WAIT_FOR_MESG(&gControllerMesgQueue, NULL);
Controller_UpdateInput();
switch (codeInput) {
case 0:
if (gControllerHold[0].button == (R_TRIG | D_CBUTTONS | L_CBUTTONS)) {
codeInput++;
codeTimer = 4000;
}
break;
case 1:
case 2:
case 7:
if (gControllerHold[0].button & R_TRIG) {
if (gControllerPress[0].button == A_BUTTON) {
codeInput++;
codeTimer = 3000;
} else if (gControllerPress[0].button != 0) {
codeInput = 0;
}
}
break;
case 3:
case 4:
case 8:
if (gControllerHold[0].button & R_TRIG) {
if (gControllerPress[0].button == B_BUTTON) {
codeInput++;
codeTimer = 3000;
} else if (gControllerPress[0].button != 0) {
codeInput = 0;
}
}
break;
case 5:
case 6:
case 9:
case 10:
case 11:
case 12:
case 13:
if (gControllerHold[0].button & R_TRIG) {
if (gControllerPress[0].button == L_CBUTTONS) {
codeInput++;
codeTimer = 3000;
} else if (gControllerPress[0].button != 0) {
codeInput = 0;
}
}
break;
case 14:
if (gControllerHold[0].button & R_TRIG) {
if (gControllerPress[0].button == START_BUTTON) {
codeInput++;
codeTimer = 3000;
} else if (gControllerPress[0].button != 0) {
codeInput = 0;
}
}
break;
case 15:
codeComplete = true;
break;
}
if (codeTimer != 0) {
codeTimer--;
} else {
codeInput = 0;
}
}
#endif
Fault_DisplayDebugInfo(faultedThread);
while (true) {
;
}
}
void Fault_SetFrameBuffer(FrameBuffer* buffer, u16 width, u16 height) {
gFaultMgr.fb = buffer;
gFaultMgr.width = width;
gFaultMgr.height = height;
}
void Fault_Init(void) {
gFaultMgr.fb = (FrameBuffer*) (PHYS_TO_K0(osMemSize) - sizeof(FrameBuffer));
gFaultMgr.width = SCREEN_WIDTH;
gFaultMgr.height = SCREEN_HEIGHT;
osCreateMesgQueue(&gFaultMgr.mesgQueue, &gFaultMgr.msg, 1);
osCreateThread(&gFaultMgr.thread, THREAD_ID_FAULT, Fault_ThreadEntry, 0, gFaultMgr.stack + sizeof(gFaultMgr.stack),
127);
osStartThread(&gFaultMgr.thread);
}
|
