Export symbols from IDA to a ghidra importable symbol file

export_symbol.idc

#include <idc.idc>

static FuncDump(f, start)
{
    auto ea, str, count, ref;
    auto end;
    auto teststr;

    ea = start;

    while( ea != BADADDR )
    {
        str = GetFunctionName(ea);
        if( str != 0 )
        {
            end = FindFuncEnd(ea);

            count = 0;
            ref = RfirstB(ea);
            while(ref != BADADDR)
            {
                count = count + 1;
                ref = RnextB(ea, ref);
            }

            teststr = sprintf("sub_%X", ea);
            if( teststr != str )
            {
                fprintf(f, "%s 0x%X\n", str, ea);
            }
            //Message("%s, 0x%d, 0x%x, 0x%x, 0x%x, %d\n", str, count, ea, end, end-ea, end-ea   );
        }

        ea = NextFunction(ea);
    }
}

static main() 
{
    auto current = GetInputFile();
    current = AskFile(-1, current, "Where should I write the symbols to?");
    if(current == 0)
    {
        return -1;
    }
    auto f = fopen(current, "wb");
    Message("FuncDump: Start\n");

    FuncDump(f,0x100000);
    fclose(f);
    Message("FuncDump: Done\n");
}

In order to import the file into Ghidra open the Script Manager, run ImportSymbolsScript.py and pick the symbol file.

If necessary, change the call of FuncDump in Line 49 so that not only functions above 0x100000 are exported.

how about variable names?