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Exceptions: display more infos on screen (status, far, access type)

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Nanquitas 2017-08-15 14:05:32 +02:00
parent 009f61a8b6
commit b7f4ac02c8
1 changed files with 27 additions and 0 deletions
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27
source/exceptions.c
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@ -69,8 +69,21 @@ void detectAndProcessExceptionDumps(void)
*registerNames[] = {
"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "R8", "R9", "R10", "R11", "R12",
"SP", "LR", "PC", "CPSR", "FPEXC"
},
*faultStatusNames[] = {
"Alignment", "Instruction cache maintenance operation",
"External Abort on translation - First-level", "External Abort on translation - Second-level",
"Translation - Section", "Translation - Page", "Access bit - Section", "Access bit - Page",
"Domain - Section", "Domain - Page", "Permission - Section", "Permission - Page",
"Precise External Abort", "Imprecise External Abort", "Debug event"
};
static const u32 faultStatusValues[] = {
0b1, 0b100, 0b1100, 0b1110, 0b101, 0b111, 0b11, 0b110, 0b1001, 0b1011, 0b1101,
0b1111, 0b1000, 0b10110, 0b10
};
initScreens();
drawString(true, 10, 10, COLOR_RED, "An exception occurred");
@ -78,6 +91,17 @@ void detectAndProcessExceptionDumps(void)
if(dumpHeader->processor == 11) posY = drawFormattedString(true, 10, 30, COLOR_WHITE, "Processor: ARM11 (core %u)", dumpHeader->core);
else posY = drawString(true, 10, 30, COLOR_WHITE, "Processor: ARM9");
const char *faultStatusInfos = NULL;
if (dumpHeader->type >= 2)
{
u32 xfsr = dumpHeader->type == 2 ? regs[18] : regs[17];
xfsr &= 0xF;
for (int i = 0; i < 15; i++)
if (xfsr == faultStatusValues[i]){
faultStatusInfos = faultStatusNames[i];
break;
}
}
if(dumpHeader->type == 2)
{
if((regs[16] & 0x20) == 0 && dumpHeader->codeDumpSize >= 4)
@ -101,6 +125,7 @@ void detectAndProcessExceptionDumps(void)
}
else
posY = drawFormattedString(true, 10, posY + SPACING_Y, COLOR_WHITE, "Exception type: %s", handledExceptionNames[dumpHeader->type]);
if (faultStatusInfos != NULL) posY = drawFormattedString(true, 10, posY + SPACING_Y, COLOR_WHITE, "Fault status: %s", faultStatusInfos);
if(dumpHeader->processor == 11 && dumpHeader->additionalDataSize != 0)
posY = drawFormattedString(true, 10, posY + SPACING_Y, COLOR_WHITE,
@ -116,6 +141,8 @@ void detectAndProcessExceptionDumps(void)
else if(dumpHeader->processor == 11)
posY = drawFormattedString(true, 10 + 22 * SPACING_X, posY, COLOR_WHITE, "%-7s%08X", registerNames[i + 1], regs[20]);
}
if (dumpHeader->type == 3)
posY = drawFormattedString(true, 10, posY + SPACING_Y, COLOR_WHITE, "%-7s%08X Access type: %s", "FAR", regs[19], regs[17] & (1u << 11) ? "Write":"Read");
posY += SPACING_Y;