public void StartDump(uint addr, uint len, FileStream dump = null)
{
if (len == 0)
{
// dump all of ram
len = 0xFFFFFFFF - addr;
}
long methid_copy = _vita.GetMethod(true, "System.Runtime.InteropServices.Marshal", "Copy", 4, new string[] { "IntPtr", "Byte[]", "Int32", "Int32" });
if (methid_copy < 0)
{
Console.WriteLine("Cannot find Copy method.");
return;
}
// weird address format for IntPtr on vita
/* DEPRECATED BECAUSE GC WILL DELETE THESE
* ValueImpl src = v.CreateIntPtr(UIntToVitaInt(addr));
* ValueImpl dest = v.CreateArray("System.Byte", BLOCK_SIZE);
*/
ValueImpl dest = _vita.GetField(false, "VitaDefilerClient.AppMain", "dest");
dest.Type = ElementType.Object; // must be done
ValueImpl src = _vita.GetField(false, "VitaDefilerClient.AppMain", "src");
if (dest == null)
{
Console.WriteLine("Cannot find buffer to write to.");
return;
}
if (src == null)
{
Console.WriteLine("Cannot find pointer to read from.");
return;
}
src.Fields[0].Value = UIntToVitaInt(addr);
byte[] block = new byte[BLOCK_SIZE];
// error block will be written when block cannot be read
byte[] error_block = new byte[BLOCK_SIZE];
for (int i = 0; i < BLOCK_SIZE; i++)
{
error_block[i] = (byte)'X';
}
ValueImpl sti = new ValueImpl();
ValueImpl dlen = new ValueImpl();
sti.Type = ElementType.I4;
dlen.Type = ElementType.I4;
sti.Value = 0;
dlen.Value = BLOCK_SIZE;
_vita.Suspend();
Console.WriteLine("Starting dump...");
for (int d = 0; d *BLOCK_SIZE <= len; d++)
{
try
{
if (dump != null)
{
dump.Flush();
}
Console.WriteLine("Dumping 0x{0:X}", src.Fields[0].Value);
ValueImpl ret = _vita.RunMethod(methid_copy, null, new ValueImpl[] { src, dest, sti, dlen }, true);
if (ret == null)
{
throw new TargetException("Method never returned.");
}
_vita.GetBuffer(dest.Objid, BLOCK_SIZE, ref block);
if (dump == null)
{
block.PrintHexDump((uint)BLOCK_SIZE, 16);
}
int num = BLOCK_SIZE;
if (d * BLOCK_SIZE + num > len)
{
num = (int)(len - d * BLOCK_SIZE);
}
if (dump != null)
{
dump.Write(block, 0, num);
}
}
catch (InvalidOperationException) // vm not suspended, retry
{
Console.WriteLine("VM_NOT_SUSPENDED, retrying...");
d--;
continue;
}
catch (Vita.RunMethodException ex)
{
Console.WriteLine("Error dumping 0x{0:X}: {1}", src.Fields[0].Value, ex.Message.ToString());
int num = BLOCK_SIZE;
if (d * BLOCK_SIZE + num > len)
{
num = (int)(len - d * BLOCK_SIZE);
}
if (dump != null)
{
dump.Write(error_block, 0, num);
}
}
// next block to dump
src.Fields[0].Value = (Int64)src.Fields[0].Value + BLOCK_SIZE;
if (d % 1000 == 0)
{
// must be done or app will freeze
_vita.Resume();
_vita.Suspend();
}
}
if (dump != null)
{
dump.Close();
}
_vita.Resume();
}
