LowLevel/Luma3DS-3GX
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Make the exception dump parser output the disassembly of the dumped code (when it's possible)

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This commit is contained in:
TuxSH 2016-10-06 00:16:21 +02:00
parent bd6c7b7fdb
commit 1ad600c81a
1 changed files with 41 additions and 19 deletions
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34
exceptions/exception_dump_parser.py
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@ -24,7 +24,7 @@
__author__ = "TuxSH"
__copyright__ = "Copyright (c) 2016 TuxSH"
__license__ = "GPLv3"
__version__ = "v1.0"
__version__ = "v1.2"
"""
Parses Luma3DS exception dumps
@ -33,6 +33,9 @@ Parses Luma3DS exception dumps
import argparse
from struct import unpack_from
import os
import subprocess
# Source of hexdump: https://gist.github.com/ImmortalPC/c340564823f283fe530b
# Credits for hexdump go to the original authors
# Slightly edited by TuxSH
@ -76,7 +79,7 @@ def hexdump(addr, src, length=16, sep='.' ):
text += chr(c)
else:
text += sep
result.append(('%08X: %-'+str(length*(2+1)+1)+'s |%s|') % (addr + i, hexa, text))
result.append(('%08x: %-'+str(length*(2+1)+1)+'s |%s|') % (addr + i, hexa, text))
return '\n'.join(result)
@ -104,8 +107,9 @@ if __name__ == "__main__":
raise SystemExit("Incompatible format version, please use the appropriate parser.")
registers = unpack_from("<{0}I".format(nbRegisters), data, 40)
codeDump = data[40 + 4 * nbRegisters : 40 + 4 * nbRegisters + codeDumpSize]
stackOffset = 40 + 4 * nbRegisters + codeDumpSize
codeOffset = 40 + 4 * nbRegisters
codeDump = data[codeOffset : codeOffset + codeDumpSize]
stackOffset = codeOffset + codeDumpSize
stackDump = data[stackOffset : stackOffset + stackDumpSize]
addtionalDataOffset = stackOffset + stackDumpSize
additionalData = data[addtionalDataOffset : addtionalDataOffset + additionalDataSize]
@ -139,9 +143,27 @@ if __name__ == "__main__":
print(makeRegisterLine(registerNames[i], registers[i], registerNames[i+1], registers[i+1]))
if nbRegisters % 2 == 1: print("{0:<15}{1:<20}".format(registerNames[nbRegisters - 1], "{0:08x}".format(registers[nbRegisters - 1])))
thumb = registers[16] & 0x20 != 0
addr = registers[15] - codeDumpSize + (2 if thumb else 4)
print("\nCode dump:\n")
print(hexdump(registers[15] - codeDumpSize + (4 if (registers[16] & 0x20 == 0) else 2), codeDump))
objdump_res = ""
try:
path = os.path.join(os.environ["DEVKITARM"], "bin", "arm-none-eabi-objdump")
if os.name == "nt":
path = ''.join((path[1], ':', path[2:])).replace('/', '\\')
objdump_res = subprocess.check_output((
path, "-marm", "-b", "binary",
"--adjust-vma="+hex(addr - codeOffset), "--start-address="+hex(addr),
"--stop-address="+hex(addr + codeDumpSize), "-D", "-z", "-M",
"reg-names-std" + (",force-thumb" if thumb else ""), args.filename
)).decode("utf-8")
objdump_res = '\n'.join(objdump_res[objdump_res.find('<.data+'):].split('\n')[1:])
except: objdump_res = ""
print(objdump_res if objdump_res != "" else hexdump(addr, codeDump))
print("\nStack dump:\n")
print(hexdump(registers[13], stackDump))