Hello_User/XenonRecomp
1
0
Fork 0
mirror of https://github.com/hedge-dev/XenonRecomp.git synced 2025-07-22 04:47:13 +00:00
Code Issues Packages Projects Releases Wiki Activity

Repository cleanup & README.md. (#5)

Browse Source
This commit is contained in:
Skyth (Asilkan)
2025-02-27 00:11:11 +03:00
committed by GitHub
parent cd6fcb33bd
commit 04e716178b
24 changed files with 340 additions and 268 deletions
Download Patch File Download Diff File Expand all files Collapse all files

179
XenonAnalyse/main.cpp
View File

@@ -172,32 +172,25 @@ void* SearchMask(const void* source, const uint32_t* compare, size_t compareCoun
return nullptr;
}
int main()
static std::string out;
template<class... Args>
static void println(fmt::format_string<Args...> fmt, Args&&... args)
{
const auto file = LoadFile("private/default.xex");
auto image = Image::ParseImage(file.data(), file.size());
fmt::vformat_to(std::back_inserter(out), fmt.get(), fmt::make_format_args(args...));
out += '\n';
};
std::string out;
auto println = [&]<class... Args>(fmt::format_string<Args...> fmt, Args&&... args)
int main(int argc, char** argv)
{
if (argc < 3)
{
fmt::vformat_to(std::back_inserter(out), fmt.get(), fmt::make_format_args(args...));
out += '\n';
};
//for (const auto& section : image.sections)
//{
// image.symbols.emplace(section.name, section.base, section.size, Symbol_Section);
//}
printf("Usage: XenonAnalyse [input XEX file path] [output jump table TOML file path]");
return EXIT_SUCCESS;
}
// MakeMask((uint32_t*)image.Find(0x82C40D84), 6);
//auto data = "\x4D\x99\x00\x20";
//auto data2 = ByteSwap((2129));
//ppc_insn insn;
//ppc_insn insn2;
//ppc::Disassemble(data, 0, insn);
//ppc::Disassemble(&data2, 0, insn2);
//auto op = PPC_OP(insn.instruction);
//auto xop = PPC_XOP(insn.instruction);
const auto file = LoadFile(argv[1]);
auto image = Image::ParseImage(file.data(), file.size());
auto printTable = [&](const SwitchTable& table)
{
@@ -217,27 +210,7 @@ int main()
std::vector<SwitchTable> switches{};
auto insertTable = [&](size_t base, size_t defaultLabel, size_t r, size_t nLabels, uint32_t type)
{
auto& sw = switches.emplace_back();
sw.base = base;
sw.defaultLabel = defaultLabel;
sw.r = r;
sw.labels.resize(nLabels);
sw.type = type;
};
println("# Generated by PowerAnalyse");
insertTable(0x830ADAD8, 0x830ADB28, 11, 0x1B, SWITCH_COMPUTED);
insertTable(0x830AE1B0, 0x830AE21C, 11, 0x1B, SWITCH_BYTEOFFSET);
insertTable(0x82CFE120, 0x82CFDE68, 11, 0x10, SWITCH_SHORTOFFSET);
println("# ---- MANUAL JUMPTABLE ----");
for (auto& table : switches)
{
ReadTable(image, table);
printTable(table);
}
println("# Generated by XenonAnalyse");
auto scanPattern = [&](uint32_t* pattern, size_t count, size_t type)
{
@@ -332,122 +305,8 @@ int main()
scanPattern(offsetSwitch, std::size(offsetSwitch), SWITCH_BYTEOFFSET);
scanPattern(wordOffsetSwitch, std::size(wordOffsetSwitch), SWITCH_SHORTOFFSET);
FILE* f = fopen("out/switches.toml", "w");
fwrite(out.data(), 1, out.size(), f);
fclose(f);
std::ofstream f(argv[2]);
f.write(out.data(), out.size());
uint32_t cxxFrameHandler = ByteSwap(0x831B1C90);
uint32_t cSpecificFrameHandler = ByteSwap(0x8324B3BC);
image.symbols.emplace("__CxxFrameHandler", 0x831B1C90, 0x38, Symbol_Function);
image.symbols.emplace("__C_specific_handler", 0x8324B3BC, 0x38, Symbol_Function);
image.symbols.emplace("memcpy", 0x831B0ED0, 0x488, Symbol_Function);
image.symbols.emplace("memset", 0x831B0BA0, 0xA0, Symbol_Function);
image.symbols.emplace("blkmov", 0x831B1358, 0xA8, Symbol_Function);
image.symbols.emplace(fmt::format("sub_{:X}", 0x82EF5D78), 0x82EF5D78, 0x3F8, Symbol_Function);
// auto fnd = Function::Analyze(image.Find(0x82C40D58), image.size, 0x82C40D58);
std::vector<Function> functions;
auto& pdata = *image.Find(".pdata");
size_t count = pdata.size / sizeof(IMAGE_CE_RUNTIME_FUNCTION);
auto* pf = (IMAGE_CE_RUNTIME_FUNCTION*)pdata.data;
for (size_t i = 0; i < count; i++)
{
auto fn = pf[i];
fn.BeginAddress = ByteSwap(fn.BeginAddress);
fn.Data = ByteSwap(fn.Data);
auto& f = functions.emplace_back();
f.base = fn.BeginAddress;
f.size = fn.FunctionLength * 4;
if (f.base == 0x82BD7420)
{
__builtin_debugtrap();
}
image.symbols.emplace(fmt::format("sub_{:X}", f.base), f.base, f.size, Symbol_Function);
}
auto sym = image.symbols.find(0x82BD7420);
std::vector<Function> missingFunctions;
for (const auto& section : image.sections)
{
if (!(section.flags & SectionFlags_Code))
{
continue;
}
size_t base = section.base;
uint8_t* data = section.data;
uint8_t* dataEnd = section.data + section.size;
const Symbol* prevSymbol = nullptr;
while (data < dataEnd)
{
if (*(uint32_t*)data == 0)
{
data += 4;
base += 4;
continue;
}
if (*(uint32_t*)data == cxxFrameHandler || *(uint32_t*)data == cSpecificFrameHandler)
{
data += 8;
base += 8;
continue;
}
auto fnSymbol = image.symbols.find(base);
if (fnSymbol != image.symbols.end() && fnSymbol->type == Symbol_Function)
{
assert(fnSymbol->address == base);
prevSymbol = &*fnSymbol;
base += fnSymbol->size;
data += fnSymbol->size;
}
else
{
auto& missingFn = missingFunctions.emplace_back(Function::Analyze(data, dataEnd - data, base));
base += missingFn.size;
data += missingFn.size;
fmt::println("sub_{:X}", missingFn.base);
}
}
}
//ppc_insn insn;
//uint8_t c[4] = { 0x10, 0x00, 0x59, 0xC3 };
//ppc::Disassemble(c, 0x831D6C64, insn);
//fmt::println("{:20}{}", insn.opcode->name, insn.op_str);
const auto entrySymbol = image.symbols.find(image.entry_point);
assert(entrySymbol != image.symbols.end());
const auto entrySize = entrySymbol->size;
image.symbols.erase(entrySymbol);
image.symbols.emplace("_start", image.entry_point, entrySize, Symbol_Function);
fmt::println("FUNCTIONS");
for (const auto& fn : functions)
{
fmt::println("\tsub_{:X}", fn.base);
}
fmt::println("");
fmt::println("SECTIONS");
for (const auto& section : image.sections)
{
printf("Section %.8s\n", section.name.c_str());
printf("\t%X-%X\n", section.base, section.base + section.size);
}
fmt::println("");
return 0;
return EXIT_SUCCESS;
}