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2025-03-26 02:45:33 -04:00
parent fb0a46480f
commit f1fe6e1f9e
1 changed files with 7 additions and 32 deletions
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39
lib/src/il2cpp-init.cpp
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@@ -343,7 +343,7 @@ namespace
for (const auto& [entry, count] : callCounts)
{
std::println("Entry: 0x{:X}, RVA: 0x{:08X}, Count: {}", entry, entry - Globals::BaseAddress, count);
if (count == 5) {
if (count == 3) {
targetEntry = entry;
}
}
@@ -367,43 +367,18 @@ namespace
mov rax
*/
// look for ItemModule.GetBagManagerByStoreType
const auto candidates = Util::PatternScanAll(il2cppSection, "41 83 F8 02 74 ? 41 83 F8 01 48 8B 05");
// look for ItemModule.GetBagManagerByStoreType <- mf got inlined in 5.5
// we just gon to look for OnPlayerStoreNotify
const auto candidates = Util::PatternScanAll(il2cppSection, "41 83 F8 02 ? ? ? ? ? ? ? ? ? ? ? ? ? ? 41 83 F8 01");
std::println("Candidates: {}", candidates.size());
if (candidates.empty())
return;
uintptr_t pGetBagManagerByStoreType = candidates.front();
{
std::println("GetBagManagerByStoreType: 0x{:X}", pGetBagManagerByStoreType);
const auto isFunctionEntry = [](uintptr_t va) -> bool {
auto* code = reinterpret_cast<uint8_t*>(va);
return (va % 16 == 0 &&
code[0] == 0x56 && // push rsi
code[1] == 0x57); // push rdi
};
auto range = std::views::iota(0, 213);
if (const auto it = std::ranges::find_if(range, [&](int i) { return isFunctionEntry(pGetBagManagerByStoreType - i); });
it != range.end())
{
pGetBagManagerByStoreType -= *it;
}
else {
std::println("Failed to find function entry");
return;
}
std::println("GetBagManagerByStoreType: 0x{:X}", pGetBagManagerByStoreType);
}
uintptr_t pOnPlayerStoreNotify = 0;
{
// get all calls to GetBagManagerByStoreType
auto calls = GetCalls(reinterpret_cast<uint8_t*>(pGetBagManagerByStoreType));
auto decodedInstructions = calls | std::views::transform([](auto va) { return DecodeFunction(va); });
// one of the candidates is OnPlayerStoreNotify
// search after the pattern to find an arbirary branch
auto decodedInstructions = candidates | std::views::transform([](auto va) { return DecodeFunction(va, 20); });
// find the call site with an arbitrary branch (JMP or CALL) after the call
auto targetInstructions = std::ranges::find_if(decodedInstructions, [](const auto& instr) {