sup39
709f283e53
codehandler.bin: - Use Nintendont's codehandler - Clearing cache for 04 code type kernel.py: - Fix codelength - Fix code optimization (TODO 28, E2) dolreader.py: - Fix verbose 3 logging bug
665 lines
27 KiB
Python
665 lines
27 KiB
Python
import functools
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import random
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import re
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import sys
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import time
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from io import BytesIO
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from pathlib import Path
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import tools
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from dolreader import DolFile, SectionCountFullError, UnmappedAddressError
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from fileutils import (get_alignment, read_uint16, read_uint32, write_bool,
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write_sint32, write_ubyte, write_uint16, write_uint32)
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try:
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import chardet
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except ImportError as IE:
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print(IE)
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sys.exit(1)
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def timer(func):
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@functools.wraps(func)
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def wrapper(*args, **kwargs):
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start = time.perf_counter()
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value = func(*args, **kwargs)
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end = time.perf_counter()
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print(tools.color_text(f"\n :: Completed in {(end - start):0.4f} seconds!\n", defaultColor=tools.TGREENLIT))
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return value
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return wrapper
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class InvalidGeckoCodeError(Exception): pass
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class GCT(object):
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def __init__(self, f):
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self.codeList = BytesIO(f.read())
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self.rawLineCount = tools.stream_size(self.codeList) >> 3
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self.lineCount = self.rawLineCount - 2
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f.seek(0)
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@property
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def size(self):
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return len(self.codeList.getbuffer())
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@staticmethod
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def determine_codelength(codetype, info: bytes) -> int:
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ct = codetype[0] & 0b_1110_1110
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if ct == 0x06:
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bytelength = int.from_bytes(info, byteorder="big", signed=False)
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padding = get_alignment(bytelength, 8)
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return 0x8 + bytelength + padding
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elif ct == 0x08:
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return 0x16
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elif ct in (0xC0, 0xC2, 0xC4):
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r = 0x8 + (int.from_bytes(info, byteorder="big", signed=False) << 3)
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return r
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elif ct in (0xF2, 0xF4):
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return 0x8 + (int.from_bytes(info[:2], byteorder="big", signed=False) << 3)
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elif ct == 0xF6:
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return 0x8 + (int.from_bytes(info[:4], byteorder="big", signed=False) << 3)
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else:
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return 0x8
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def optimize_codelist(self, dolFile: DolFile):
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codelist = b"\x00\xD0\xC0\xDE"*2
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skipcodes = 0
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self.codeList.seek(8)
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while codetype := self.codeList.read(4):
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info = self.codeList.read(4)
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address = 0x80000000 | (int.from_bytes(codetype, byteorder="big", signed=False) & 0x1FFFFFF)
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try:
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if skipcodes <= 0:
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if (codetype.startswith(b"\x00") or codetype.startswith(b"\x01")
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or codetype.startswith(b"\x10") or codetype.startswith(b"\x11")):
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dolFile.seek(address)
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counter = int.from_bytes(info[:-2], byteorder="big", signed=False)
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value = info[2:]
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while counter + 1 > 0:
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dolFile.write(value[1:])
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counter -= 1
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continue
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elif (codetype.startswith(b"\x02") or codetype.startswith(b"\x03")
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or codetype.startswith(b"\x12") or codetype.startswith(b"\x13")):
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dolFile.seek(address)
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counter = int.from_bytes(info[:-2], byteorder="big", signed=False)
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value = info[2:]
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while counter + 1 > 0:
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dolFile.write(value)
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counter -= 1
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continue
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elif (codetype.startswith(b"\x04") or codetype.startswith(b"\x05")
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or codetype.startswith(b"\x14") or codetype.startswith(b"\x15")):
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dolFile.seek(address)
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dolFile.write(info)
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continue
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elif (codetype.startswith(b"\x06") or codetype.startswith(b"\x07")
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or codetype.startswith(b"\x16") or codetype.startswith(b"\x17")):
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dolFile.seek(address)
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arraylength = int.from_bytes(info, byteorder="big", signed=False)
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padding = get_alignment(arraylength, 8)
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dolFile.write(self.codeList.read(arraylength))
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self.codeList.seek(padding, 1)
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continue
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elif (codetype.startswith(b"\x08") or codetype.startswith(b"\x09")
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or codetype.startswith(b"\x18") or codetype.startswith(b"\x19")):
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dolFile.seek(address)
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value = int.from_bytes(info, byteorder="big", signed=False)
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data = read_uint16(self.codeList)
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size = (data & 0x3000) >> 12
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counter = data & 0xFFF
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address_increment = read_uint16(self.codeList)
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value_increment = read_uint32(self.codeList)
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while counter + 1 > 0:
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if size == 0:
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write_ubyte(dolFile, value & 0xFF)
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dolFile.seek(-1, 1)
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elif size == 1:
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write_uint16(dolFile, value & 0xFFFF)
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dolFile.seek(-2, 1)
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elif size == 2:
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write_uint32(dolFile, value)
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dolFile.seek(-4, 1)
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else:
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raise ValueError("Size type {} does not match 08 codetype specs".format(size))
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dolFile.seek(address_increment, 1)
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value += value_increment
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counter -= 1
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if value > 0xFFFFFFFF:
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value -= 0x100000000
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continue
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elif (codetype.startswith(b"\xC6") or codetype.startswith(b"\xC7")
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or codetype.startswith(b"\xC6") or codetype.startswith(b"\xC7")):
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dolFile.insert_branch(int.from_bytes(info, byteorder="big", signed=False), address, lk=address&1)
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continue
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if codetype.hex().startswith("2") or codetype.hex().startswith("3"): # TODO
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skipcodes += 1
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elif codetype.startswith(b"\xE0"):
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skipcodes = 0
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elif codetype.startswith(b"\xE2"): # TODO
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skipcodes -= 1
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elif codetype.startswith(b"\xF0"):
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codelist += b"\xF0\x00\x00\x00\x00\x00\x00\x00"
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break
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self.codeList.seek(-8, 1)
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codelist += self.codeList.read(GCT.determine_codelength(codetype, info))
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except (RuntimeError, UnmappedAddressError):
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self.codeList.seek(-8, 1)
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codelist += self.codeList.read(GCT.determine_codelength(codetype, info))
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self.codeList = BytesIO(codelist)
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class CodeHandler(object):
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class Types:
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MINI = "MINI"
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FULL = "FULL"
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def __init__(self, f):
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self._rawData = BytesIO(f.read())
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"""Get codelist pointer"""
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self._rawData.seek(0xFA)
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codelistUpper = self._rawData.read(2).hex()
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self._rawData.seek(0xFE)
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codelistLower = self._rawData.read(2).hex()
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self.codeListPointer = int(codelistUpper[2:] + codelistLower[2:], 16)
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self.handlerLength = tools.stream_size(self._rawData)
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self.initAddress = 0x80001800
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self.startAddress = 0x800018A8
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self.wiiVIHook = b"\x7C\xE3\x3B\x78\x38\x87\x00\x34\x38\xA7\x00\x38\x38\xC7\x00\x4C"
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self.gcnVIHook = b"\x7C\x03\x00\x34\x38\x83\x00\x20\x54\x85\x08\x3C\x7C\x7F\x2A\x14\xA0\x03\x00\x00\x7C\x7D\x2A\x14\x20\xA4\x00\x3F\xB0\x03\x00\x00"
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self.wiiGXDrawHook = b"\x3C\xA0\xCC\x01\x38\x00\x00\x61\x3C\x80\x45\x00\x98\x05\x80\x00"
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self.gcnGXDrawHook = b"\x38\x00\x00\x61\x3C\xA0\xCC\x01\x3C\x80\x45\x00\x98\x05\x80\x00"
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self.wiiPADHook = b"\x3A\xB5\x00\x01\x3A\x73\x00\x0C\x2C\x15\x00\x04\x3B\x18\x00\x0C"
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self.gcnPADHook = b"\x3A\xB5\x00\x01\x2C\x15\x00\x04\x3B\x18\x00\x0C\x3B\xFF\x00\x0C"
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self.allocation = None
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self.hookAddress = None
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self.hookType = None
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self.geckoCodes = None
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self.includeAll = False
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self.optimizeList = False
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if self.handlerLength < 0x900:
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self.type = CodeHandler.Types.MINI
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else:
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self.type = CodeHandler.Types.FULL
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f.seek(0)
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def init_gct(self, gctFile: Path, tmpdir: Path=None):
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if tmpdir is not None:
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_tmpGct = tmpdir / "gct.bin"
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else:
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_tmpGct = Path("gct.bin")
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if gctFile.suffix.lower() == ".txt":
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with _tmpGct.open("wb+") as temp:
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temp.write(bytes.fromhex("00D0C0DE"*2 + self.parse_input(gctFile) + "F000000000000000"))
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temp.seek(0)
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self.geckoCodes = GCT(temp)
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elif gctFile.suffix.lower() == ".gct":
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with gctFile.open("rb") as gct:
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self.geckoCodes = GCT(gct)
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elif gctFile.suffix == "":
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with _tmpGct.open("wb+") as temp:
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temp.write(b"\x00\xD0\xC0\xDE"*2)
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for file in gctFile.iterdir():
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if file.is_file():
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if file.suffix.lower() == ".txt":
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temp.write(bytes.fromhex(self.parse_input(file)))
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elif file.suffix.lower() == ".gct":
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with file.open("rb") as gct:
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temp.write(gct.read()[8:-8])
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else:
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print(tools.color_text(f" :: HINT: {file} is not a .txt or .gct file", defaultColor=tools.TYELLOWLIT))
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temp.write(b"\xF0\x00\x00\x00\x00\x00\x00\x00")
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temp.seek(0)
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self.geckoCodes = GCT(temp)
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else:
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raise NotImplementedError(f"Parsing file type `{gctFile.suffix}' as a GCT is unsupported")
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def parse_input(self, geckoText: Path) -> str:
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with geckoText.open("rb") as gecko:
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result = chardet.detect(gecko.read())
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encodeType = result["encoding"]
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with geckoText.open("r", encoding=encodeType) as gecko:
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geckoCodes = ""
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state = None
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for line in gecko.readlines():
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if line in ("", "\n"):
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continue
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if state is None:
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if line.startswith("$") or line.startswith("["):
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state = "Dolphin"
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else:
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state = "OcarinaM"
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try:
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if state == "OcarinaM":
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if self.includeAll:
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geckoLine = re.findall(r"[A-F0-9]{8}[\t\f ][A-F0-9]{8}", line, re.IGNORECASE)[0]
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else:
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geckoLine = re.findall(r"(?:\*\s*)([A-F0-9]{8}[\t\f ][A-F0-9]{8})", line, re.IGNORECASE)[0]
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else:
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geckoLine = re.findall(r"(?<![$\*])[A-F0-9]{8}[\t\f ][A-F0-9]{8}", line, re.IGNORECASE)[0]
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except IndexError:
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continue
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geckoCodes += geckoLine.replace(" ", "").strip()
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return geckoCodes
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@staticmethod
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def encrypt_key(key: int) -> int:
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b1 = key & 0xFF
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b2 = (key >> 8) & 0xFF
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b3 = (key >> 16) & 0xFF
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b4 = (key >> 24) & 0xFF
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b3 ^= b4
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b2 ^= b3
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b1 ^= b2
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return (b1 << 24) | (b2 << 16) | (b3 << 8) | b4
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def encrypt_codes(self, key: int):
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self.geckoCodes.codeList.seek(0)
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i = 0
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while True:
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try:
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packet = read_uint32(self.geckoCodes.codeList)
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self.geckoCodes.codeList.seek(-4, 1)
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write_uint32(self.geckoCodes.codeList, (packet^key) & 0xFFFFFFFF)
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key += (i << 3) & 0xFFFFFFFF
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if key > 0xFFFFFFFF:
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key -= 0x100000000
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i += 1
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except:
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break
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def find_variable_data(self, variable) -> int:
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self._rawData.seek(0)
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while sample := self._rawData.read(4):
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if sample == variable:
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return self._rawData.tell() - 4
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return None
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def set_hook_instruction(self, dolFile: DolFile, address: int, varOffset: int, lk=0):
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self._rawData.seek(varOffset)
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dolFile.seek(address)
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ppc = read_uint32(dolFile)
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if ((((ppc >> 24) & 0xFF) > 0x47 and ((ppc >> 24) & 0xFF) < 0x4C) or (((ppc >> 24) & 0xFF) > 0x3F and ((ppc >> 24) & 0xFF) < 0x44)):
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to, conditional = dolFile.extract_branch_addr(address)
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if conditional:
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raise NotImplementedError("Hooking to a conditional non spr branch is unsupported")
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write_uint32(self._rawData, (to - (self.initAddress + varOffset)) & 0x3FFFFFD | 0x48000000 | lk)
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else:
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write_uint32(self._rawData, ppc)
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def set_variables(self, dolFile: DolFile):
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varOffset = self.find_variable_data(b"\x00\xDE\xDE\xDE")
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if varOffset is None:
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raise RuntimeError(tools.color_text("Variable codehandler data not found\n", defaultColor=tools.TREDLIT))
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self.set_hook_instruction(dolFile, self.hookAddress, varOffset, 0)
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self._rawData.seek(varOffset + 4)
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write_uint32(self._rawData, ((self.hookAddress + 4) - (self.initAddress + (varOffset + 4))) & 0x3FFFFFD | 0x48000000 | 0)
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class KernelLoader(object):
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def __init__(self, f, cli: tools.CommandLineParser=None):
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self._rawData = BytesIO(f.read())
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self._initDataList = None
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self._gpModDataList = None
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self._gpDiscDataList = None
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self._gpKeyAddrList = None
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self._cli = cli
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self.initAddress = None
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self.protect = False
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self.verbosity = 0
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self.quiet = False
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self.encrypt = False
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def error(self, msg: str):
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if self._cli is not None:
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self._cli.error(msg)
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else:
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print(msg)
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sys.exit(1)
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def set_variables(self, entryPoint: list, baseOffset: int=0):
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self._rawData.seek(0)
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if self._gpModDataList is None:
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return
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while sample := self._rawData.read(2):
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if sample == b"GH":
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self._rawData.seek(-2, 1)
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write_uint16(self._rawData, self._gpModDataList[0])
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elif sample == b"GL":
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self._rawData.seek(-2, 1)
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write_uint16(self._rawData, baseOffset + self._gpModDataList[1])
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elif sample == b"IH":
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self._rawData.seek(-2, 1)
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write_uint16(self._rawData, entryPoint[0])
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elif sample == b"IL":
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self._rawData.seek(-2, 1)
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write_uint16(self._rawData, entryPoint[1])
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elif sample == b"KH":
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self._rawData.seek(-2, 1)
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write_uint16(self._rawData, self._gpKeyAddrList[0])
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elif sample == b"KL":
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self._rawData.seek(-2, 1)
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write_uint16(self._rawData, baseOffset + self._gpKeyAddrList[1])
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def complete_data(self, codeHandler: CodeHandler, initpoint: list):
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_upperAddr, _lowerAddr = ((self.initAddress >> 16) & 0xFFFF, self.initAddress & 0xFFFF)
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_key = random.randrange(0x100000000)
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self._rawData.seek(0)
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while sample := self._rawData.read(4):
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if sample == b"HEAP": #Found keyword "HEAP". Goes with the resize of the heap
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self._rawData.seek(-4, 1)
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gpModInfoOffset = self._rawData.tell()
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gpModUpperAddr = _upperAddr + 1 if (_lowerAddr + gpModInfoOffset) > 0x7FFF else _upperAddr #Absolute addressing
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if codeHandler.allocation == None:
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codeHandler.allocation = (codeHandler.handlerLength + codeHandler.geckoCodes.size + 7) & -8
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write_uint32(self._rawData, codeHandler.allocation)
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elif sample == b"LSIZ": #Found keyword "LSIZ". Goes with the size of the loader
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self._rawData.seek(-4, 1)
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write_uint32(self._rawData, len(self._rawData.getbuffer()))
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elif sample == b"HSIZ": #Found keyword "HSIZ". Goes with the size of the codehandler
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self._rawData.seek(-4, 1)
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write_sint32(self._rawData, codeHandler.handlerLength)
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elif sample == b"CSIZ": #Found keyword "CSIZ". Goes with the size of the codes
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self._rawData.seek(-4, 1)
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write_sint32(self._rawData, codeHandler.geckoCodes.size)
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elif sample == b"HOOK": #Found keyword "HOOK". Goes with the codehandler hook
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self._rawData.seek(-4, 1)
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write_uint32(self._rawData, codeHandler.hookAddress)
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elif sample == b"CRPT": #Found keyword "CRPT". Boolean of the encryption
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self._rawData.seek(-4, 1)
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write_bool(self._rawData, self.encrypt, 4)
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elif sample == b"CYPT": #Found keyword "CYPT". Encryption Key
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self._rawData.seek(-4, 1)
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gpKeyOffset = self._rawData.tell()
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gpKeyUpperAddr = _upperAddr + 1 if (_lowerAddr + gpKeyOffset) > 0x7FFF else _upperAddr #Absolute addressing
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write_uint32(self._rawData, CodeHandler.encrypt_key(_key))
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if _lowerAddr + gpModInfoOffset > 0xFFFF:
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_lowerAddr -= 0x10000
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self._gpModDataList = (gpModUpperAddr, gpModInfoOffset)
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self._gpKeyAddrList = (gpKeyUpperAddr, gpKeyOffset)
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self.set_variables(initpoint, _lowerAddr)
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if self.encrypt:
|
|
codeHandler.encrypt_codes(_key)
|
|
|
|
def patch_arena(self, codeHandler: CodeHandler, dolFile: DolFile) -> tuple:
|
|
self.complete_data(codeHandler, [(dolFile.entryPoint >> 16) & 0xFFFF, dolFile.entryPoint & 0xFFFF])
|
|
|
|
self._rawData.seek(0, 2)
|
|
self._rawData.write(codeHandler._rawData.getvalue() + codeHandler.geckoCodes.codeList.getvalue())
|
|
|
|
self._rawData.seek(0)
|
|
_kernelData = self._rawData.getvalue()
|
|
|
|
try:
|
|
dolFile.append_text_sections([(_kernelData, self.initAddress)])
|
|
except SectionCountFullError:
|
|
try:
|
|
dolFile.append_data_sections([(_kernelData, self.initAddress)])
|
|
except SectionCountFullError:
|
|
self.error(tools.color_text("There are no unused sections left for GeckoLoader to use!\n", defaultColor=tools.TREDLIT))
|
|
|
|
dolFile.entryPoint = self.initAddress
|
|
return True, None
|
|
|
|
def patch_legacy(self, codeHandler: CodeHandler, dolFile: DolFile) -> tuple:
|
|
codeHandler._rawData.seek(0)
|
|
codeHandler.geckoCodes.codeList.seek(0)
|
|
|
|
_handlerData = codeHandler._rawData.getvalue() + codeHandler.geckoCodes.codeList.getvalue()
|
|
|
|
try:
|
|
dolFile.append_text_sections([(_handlerData, codeHandler.initAddress)])
|
|
except SectionCountFullError:
|
|
try:
|
|
dolFile.append_data_sections([(_handlerData, codeHandler.initAddress)])
|
|
except SectionCountFullError:
|
|
self.error(tools.color_text("There are no unused sections left for GeckoLoader to use!\n", defaultColor=tools.TREDLIT))
|
|
|
|
return True, None
|
|
|
|
def protect_game(self, codeHandler: CodeHandler):
|
|
_oldpos = codeHandler.geckoCodes.codeList.tell()
|
|
|
|
protectdata = (b"\xC0\x00\x00\x00\x00\x00\x00\x17",
|
|
b"\x7C\x08\x02\xA6\x94\x21\xFF\x70",
|
|
b"\x90\x01\x00\x08\xBC\x61\x00\x0C",
|
|
b"\x48\x00\x00\x0D\x00\xD0\xC0\xDE",
|
|
b"\x00\xD0\xDE\xAD\x7F\xE8\x02\xA6",
|
|
b"\x3B\xDF\x00\x08\x3C\x60\x80\x00",
|
|
b"\x38\x80\x11\x00\x38\xA0\x00\x00",
|
|
b"\x60\x63\x1E\xF8\x7C\x89\x03\xA6",
|
|
b"\x38\x80\x00\x00\x7D\x03\x22\x14",
|
|
b"\x54\xE9\x06\x3E\x89\x08\x00\x08",
|
|
b"\x7D\x3F\x48\xAE\x38\xE7\x00\x01",
|
|
b"\x7C\x08\x48\x40\x41\x82\x00\x0C",
|
|
b"\x60\xA7\x00\x00\x48\x00\x00\x04",
|
|
b"\x54\xE8\x06\x3E\x28\x08\x00\x03",
|
|
b"\x41\x81\x00\x10\x38\x84\x00\x01",
|
|
b"\x42\x00\xFF\xCC\x48\x00\x00\x2C",
|
|
b"\x38\xA0\x00\x08\x7C\x84\x1A\x14",
|
|
b"\x7C\xA9\x03\xA6\x38\x60\x00\x00",
|
|
b"\x38\x84\xFF\xFF\x54\x66\x07\xBE",
|
|
b"\x7C\xDE\x30\xAE\x38\x63\x00\x01",
|
|
b"\x9C\xC4\x00\x01\x42\x00\xFF\xF0",
|
|
b"\xB8\x61\x00\x0C\x80\x01\x00\x08",
|
|
b"\x38\x21\x00\x90\x7C\x08\x03\xA6",
|
|
b"\x4E\x80\x00\x20\x00\x00\x00\x00")
|
|
|
|
codeHandler.geckoCodes.codeList.seek(-8, 2)
|
|
|
|
for line in protectdata:
|
|
codeHandler.geckoCodes.codeList.write(line)
|
|
|
|
codeHandler.geckoCodes.codeList.write(b"\xF0\x00\x00\x00\x00\x00\x00\x00")
|
|
codeHandler.geckoCodes.codeList.seek(_oldpos)
|
|
|
|
@timer
|
|
def build(self, gctFile: Path, dolFile: DolFile, codeHandler: CodeHandler, tmpdir: Path, dump: Path):
|
|
_oldStart = dolFile.entryPoint
|
|
|
|
"""Initialize our codes"""
|
|
|
|
codeHandler.init_gct(gctFile, tmpdir)
|
|
|
|
if codeHandler.geckoCodes is None:
|
|
self.error(tools.color_text("Valid codelist not found. Please provide a .txt/.gct file, or a folder of .txt/.gct files\n", defaultColor=tools.TREDLIT))
|
|
|
|
if self.protect:
|
|
self.protect_game(codeHandler)
|
|
|
|
"""Get entrypoint (or BSS midpoint) for insert"""
|
|
|
|
if self.initAddress:
|
|
try:
|
|
dolFile.resolve_address(self.initAddress)
|
|
self.error(tools.color_text(f"Init address specified for GeckoLoader (0x{self.initAddress:X}) clobbers existing dol sections", defaultColor=tools.TREDLIT))
|
|
except UnmappedAddressError:
|
|
pass
|
|
else:
|
|
self.initAddress = dolFile.seek_nearest_unmapped(dolFile.bssAddress, len(self._rawData.getbuffer()) + codeHandler.handlerLength + codeHandler.geckoCodes.size)
|
|
self._rawData.seek(0)
|
|
|
|
if codeHandler.optimizeList:
|
|
codeHandler.geckoCodes.optimize_codelist(dolFile)
|
|
|
|
"""Is codelist optimized away?"""
|
|
|
|
if codeHandler.geckoCodes.codeList.getvalue() == b"\x00\xD0\xC0\xDE\x00\xD0\xC0\xDE\xF0\x00\x00\x00\x00\x00\x00\x00":
|
|
with dump.open("wb") as final:
|
|
dolFile.save(final)
|
|
|
|
if not self.quiet:
|
|
if self.verbosity >= 3:
|
|
dolFile.print_info()
|
|
print("-"*64)
|
|
if self.verbosity >= 1:
|
|
print(tools.color_text("\n :: All codes have been successfully pre patched", defaultColor=tools.TGREENLIT))
|
|
return
|
|
|
|
hooked = determine_codehook(dolFile, codeHandler, False)
|
|
if hooked:
|
|
_status, _msg = self.patch_arena(codeHandler, dolFile)
|
|
else:
|
|
self.error(tools.color_text("Failed to find a hook address. Try using option --codehook to use your own address\n", defaultColor=tools.TREDLIT))
|
|
|
|
if _status is False:
|
|
self.error(tools.color_text(_msg + "\n", defaultColor=tools.TREDLIT))
|
|
elif codeHandler.allocation < codeHandler.geckoCodes.size:
|
|
self.error(tools.color_text("Allocated codespace was smaller than the given codelist\n", defaultColor=tools.TYELLOW))
|
|
|
|
with dump.open("wb") as final:
|
|
dolFile.save(final)
|
|
|
|
if self.quiet:
|
|
return
|
|
|
|
if self.verbosity >= 3:
|
|
dolFile.print_info()
|
|
print("-"*64)
|
|
|
|
if self.verbosity >= 2:
|
|
print("")
|
|
info = [f" :: Start of game modified to address 0x{self.initAddress:X}",
|
|
f" :: Game function `__start()' located at address 0x{_oldStart:X}",
|
|
f" :: Allocation is 0x{codeHandler.allocation:X}; codelist size is 0x{codeHandler.geckoCodes.size:X}",
|
|
f" :: Codehandler hooked at 0x{codeHandler.hookAddress:X}",
|
|
f" :: Codehandler is of type `{codeHandler.type}'",
|
|
f" :: Of the {DolFile.maxTextSections} text sections in this DOL file, {len(dolFile.textSections)} are now being used",
|
|
f" :: Of the {DolFile.maxDataSections} text sections in this DOL file, {len(dolFile.dataSections)} are now being used"]
|
|
|
|
for bit in info:
|
|
print(tools.color_text(bit, defaultColor=tools.TGREENLIT))
|
|
|
|
elif self.verbosity >= 1:
|
|
print("")
|
|
info = [f" :: GeckoLoader set at address 0x{self.initAddress:X}",
|
|
f" :: Legacy size is 0x{codeHandler.allocation:X}; codelist size is 0x{codeHandler.geckoCodes.size:X}",
|
|
f" :: Codehandler is of type `{codeHandler.type}'"]
|
|
for bit in info:
|
|
print(tools.color_text(bit, defaultColor=tools.TGREENLIT))
|
|
|
|
def determine_codehook(dolFile: DolFile, codeHandler: CodeHandler, hook=False) -> bool:
|
|
if codeHandler.hookAddress is None:
|
|
if not assert_code_hook(dolFile, codeHandler):
|
|
return False
|
|
|
|
if hook:
|
|
codeHandler.set_variables(dolFile)
|
|
insert_code_hook(dolFile, codeHandler, codeHandler.hookAddress)
|
|
|
|
return True
|
|
|
|
|
|
def assert_code_hook(dolFile: DolFile, codeHandler: CodeHandler) -> bool:
|
|
for section in dolFile.textSections:
|
|
dolFile.seek(section["address"])
|
|
sample = dolFile.read(section["size"])
|
|
|
|
if codeHandler.hookType == "VI":
|
|
result = sample.find(codeHandler.gcnVIHook)
|
|
elif codeHandler.hookType == "GX":
|
|
result = sample.find(codeHandler.gcnGXDrawHook)
|
|
elif codeHandler.hookType == "PAD":
|
|
result = sample.find(codeHandler.gcnPADHook)
|
|
else:
|
|
raise NotImplementedError(tools.color_text(f"Unsupported hook type specified ({codeHandler.hookType})", defaultColor=tools.TREDLIT))
|
|
|
|
if result >= 0:
|
|
dolFile.seek(section["address"] + result)
|
|
else:
|
|
if codeHandler.hookType == "VI":
|
|
result = sample.find(codeHandler.wiiVIHook)
|
|
elif codeHandler.hookType == "GX":
|
|
result = sample.find(codeHandler.wiiGXDrawHook)
|
|
elif codeHandler.hookType == "PAD":
|
|
result = sample.find(codeHandler.wiiPADHook)
|
|
else:
|
|
raise NotImplementedError(tools.color_text(f"Unsupported hook type specified ({codeHandler.hookType})", defaultColor=tools.TREDLIT))
|
|
|
|
if result >= 0:
|
|
dolFile.seek(section["address"] + result)
|
|
else:
|
|
continue
|
|
|
|
while (sample := read_uint32(dolFile)) != 0x4E800020:
|
|
pass
|
|
|
|
dolFile.seek(-4, 1)
|
|
codeHandler.hookAddress = dolFile.tell()
|
|
|
|
return True
|
|
return False
|
|
|
|
def insert_code_hook(dolFile: DolFile, codeHandler: CodeHandler, address: int):
|
|
dolFile.seek(address)
|
|
ppc = read_uint32(dolFile)
|
|
|
|
if ((ppc >> 24) & 0xFF) > 0x3F and ((ppc >> 24) & 0xFF) < 0x48:
|
|
raise NotImplementedError(tools.color_text("Hooking the codehandler to a conditional non spr branch is unsupported", defaultColor=tools.TREDLIT))
|
|
|
|
dolFile.seek(-4, 1)
|
|
dolFile.insert_branch(codeHandler.startAddress, address, lk=0)
|