// Exports every function Ghidra found as: start_va size name kind
// kind: fn | thunk | lib (FID-identified library code)
// Usage: analyzeHeadless <proj> <name> -import eqgame.exe -postScript ExportFunctions.java <out.txt>
import ghidra.app.script.GhidraScript;
import ghidra.program.model.address.*;
import ghidra.program.model.listing.*;
import ghidra.program.model.symbol.*;
import java.io.*;

public class ExportFunctions extends GhidraScript {
    @Override
    public void run() throws Exception {
        String out = getScriptArgs().length > 0 ? getScriptArgs()[0] : "functions.txt";
        try (PrintWriter w = new PrintWriter(new FileWriter(out))) {
            for (Function f : currentProgram.getFunctionManager().getFunctions(true)) {
                if (f.isExternal()) continue;
                Address entry = f.getEntryPoint();
                AddressRange r = f.getBody().getRangeContaining(entry);
                long size = r == null ? 0 : r.getMaxAddress().subtract(entry) + 1;
                String kind = f.isThunk() ? "thunk" : "fn";
                Symbol s = f.getSymbol();
                if (s.getSource() == SourceType.ANALYSIS && !s.getName().startsWith("FUN_")) kind = "lib";
                w.printf("0x%08x 0x%x %s %s%n", entry.getOffset(), size, f.getName(true).replace(' ', '_'), kind);
            }
        }
        println("exported to " + out);
    }
}