LowLevel/Luma3DS-3GX
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ARM11 exception handlers (not working yet, it fails to retrieve the data after the reboot)

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Uncomment the appropriate line in firm.c to test.
This commit is contained in:
TuxSH
2016-06-02 22:33:44 +02:00
parent b77d619873
commit 2d7dde9cf9
14 changed files with 375 additions and 25 deletions
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24
exceptions/exception_dump_parser.py
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@@ -67,7 +67,7 @@ def makeRegisterLine(A, rA, B, rB):
return "{0:<15}{1:<20}{2:<15}{3:<20}".format(A, "{0:08x}".format(rA), B, "{0:08x}".format(rB))
handledExceptionNames = ("FIQ", "undefined instruction", "prefetch abort", "data abort")
registerNames = tuple("r{0}".format(i) for i in range(13)) + ("sp", "lr", "pc", "cpsr")
registerNames = tuple("r{0}".format(i) for i in range(13)) + ("sp", "lr", "pc", "cpsr", "fpexc")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Parse Luma3DS exception dumps")
@@ -80,23 +80,31 @@ if __name__ == "__main__":
processor, exceptionType, _, _, codeDumpSize, stackDumpSize = unpack_from("<6I", data, 12)
print("Processor: ARM{0}".format(processor))
if processor == 9: print("Processor: ARM9")
else: print("Processor: ARM11 (core {0})".format(processor >> 16))
print("Exception type: {0}".format("unknown" if exceptionType >= len(handledExceptionNames) else handledExceptionNames[exceptionType]))
registers = unpack_from("<17I", data, 40)
registers = []
print("\nRegister dump:\n")
for i in range(0, 16, 2):
print(makeRegisterLine(registerNames[i], registers[i], registerNames[i+1], registers[i+1]))
print("{0:<15}{1:<20}".format(registerNames[-1], "{0:08x}".format(registers[-1])))
if processor == 9:
registers = unpack_from("<17I", data, 40)
for i in range(0, 16, 2):
print(makeRegisterLine(registerNames[i], registers[i], registerNames[i+1], registers[i+1]))
print("{0:<15}{1:<20}".format(registerNames[-2], "{0:08x}".format(registers[-1])))
else:
registers = unpack_from("<18I", data, 40)
for i in range(0, 18, 2):
print(makeRegisterLine(registerNames[i], registers[i], registerNames[i+1], registers[i+1]))
codeDump = data[40+4*17 : 40+4*17 + codeDumpSize]
codeDump = data[40+4*len(registers) : 40+4*len(registers) + codeDumpSize]
print("\nCode dump:\n")
print(hexdump(registers[15] - codeDumpSize + 2, codeDump))
# Homebrew/CFW set their stack at 0x27000000, let's detect it
if 0 <= 0x27000000 - registers[13] <= stackDumpSize: stackDumpSize = 0x27000000 - registers[13]
stackOffset = 40+4*17 + codeDumpSize
stackOffset = 40+4*len(registers) + codeDumpSize
stackDump = data[stackOffset : stackOffset + stackDumpSize]
print("\nStack dump:\n")
print(hexdump(registers[13], stackDump))