public void Load()
{
//COMPLIMENT OF J
//opens given filename and identifies key elements
string elfFilename = myOptions.GetFileName();
try
{
Debug.WriteLine("Loader.Load: Opening " + elfFilename + "...");
using (FileStream strm = new FileStream(elfFilename, FileMode.Open))
{
ELF elfHeader = new ELF();
byte[] data = new byte[Marshal.SizeOf(elfHeader)];
Debug.WriteLine("Loader.Load: Reading " + elfFilename + "...");
// Read ELF header data
strm.Read(data, 0, data.Length);
Debug.WriteLine("Loader.Load: Converting to struct");
// Convert to struct
elfHeader = ByteArrayToStructure <ELF>(data);
Debug.WriteLine("Loader.Load: Entry point: " + elfHeader.e_entry.ToString("X4"));
Debug.WriteLine("Loader.Load: Number of program header entries: " + elfHeader.e_phnum);
Debug.WriteLine("Loader.Load: Reading program header entries...");
// Read program header entries into programHeaders
strm.Seek(elfHeader.e_phoff, SeekOrigin.Begin);
for (int i = 0; i < elfHeader.e_phnum; i++)
{
data = new byte[elfHeader.e_phentsize];
strm.Read(data, 0, (int)elfHeader.e_phentsize);
programHeaders.Add(ByteArrayToStructure <ELFTWO>(data));
}
Debug.WriteLine("Loader.Load: Reading memory from program headers...");
//read memory from program header and send to
foreach (ELFTWO toRam in programHeaders)
{
data = new byte[toRam.p_memsz];
strm.Seek(toRam.p_offset, SeekOrigin.Begin);
strm.Read(data, 0, (int)toRam.p_memsz);
myRam.PopulateRam(data, toRam.p_vaddr);
}
Console.WriteLine(myRam.getMDF());
}
}
catch
{
Console.WriteLine("error loading file. please check your file/filename and try again");
Environment.Exit(1);
}
}
public static void RunTests(Options myOptions)
{
myOptions.SetFileName("test1.exe");
RAMsim myRam = new RAMsim(myOptions.GetMemSize());
Loader myLoader = new Loader(myOptions, myRam);
Console.WriteLine("testing Loader...");
myLoader.Load();
Console.Write("verifying MD5 hash...");
Debug.Assert(myRam.getMDF() == "3500a8bef72dfed358b25b61b7602cf1");
Console.WriteLine("success!");
}
