UE4 - IDA快速定位查找GName

FNamePool::FNamePool()
	: AnsiCount(0)
	, WideCount(0)
{

	// Register all hardcoded names
#define REGISTER_NAME(num, name) ENameToEntry[num] = Store(FNameStringView(#name, FCStringAnsi::Strlen(#name)));
#include "UObject/UnrealNames.inl"
#undef REGISTER_NAME

	// Verify all ENames are unique
	if (NumAnsiEntries() != EntryToEName.Num())
	{
		// we can't print out here because there may be no log yet if this happens before main starts
		if (FPlatformMisc::IsDebuggerPresent())
		{
			UE_DEBUG_BREAK();
		}
		else
		{
			FPlatformMisc::PromptForRemoteDebugging(false);
			FMessageDialog::Open(EAppMsgType::Ok, NSLOCTEXT("UnrealEd", "DuplicatedHardcodedName", "Duplicate hardcoded name"));
			FPlatformMisc::RequestExit(false);
		}
	}
}

这里劈里啪啦贴了一坨代码，众所周知，这个是一个C++类的构造函数，那么在逆向的时候这个函数的x0寄存器也就是入参的第一个他就是this指向FNamePool类的一个指针 ，我们可以按照上个文章的传统方法去搜索字符串，包括不限于网上满天飞的ByteProperty，也可以是Duplicate hardcoded name ，反正你爱搜什么搜什么！

搜索出来可以定位到一个函数（我顺手给他改了个名字嘻嘻

随便挑一个xrefs的，跳过去，你会看到这样的结构如果长这样，那么一般来说就说明找对了，因为源代码长这样：

static bool bNamePoolInitialized;
alignas(FNamePool) static uint8 NamePoolData[sizeof(FNamePool)];

// Only call this once per public FName function called
//
// Not using magic statics to run as little code as possible
static FNamePool& GetNamePool()
{
	if (bNamePoolInitialized)
	{
		return *(FNamePool*)NamePoolData;
	}

	FNamePool* Singleton = new (NamePoolData) FNamePool;
	bNamePoolInitialized = true;
	return *Singleton;
}