public void ReadJumpTable(JumpTable jumpTable)
{
// Reads in-memory jump table state and store internally for PtcJumpTable serialization.
_jumpTable.Clear();
IEnumerable <int> entries = jumpTable.Table.GetEntries();
foreach (int entry in entries)
{
IntPtr addr = jumpTable.GetEntryAddressJumpTable(entry);
long guestAddress = Marshal.ReadInt64(addr, 0);
long hostAddress = Marshal.ReadInt64(addr, 8);
DirectHostAddress directHostAddress;
if (hostAddress == DirectCallStubs.DirectCallStub(false).ToInt64())
{
directHostAddress = DirectHostAddress.CallStub;
}
else if (hostAddress == DirectCallStubs.DirectCallStub(true).ToInt64())
{
directHostAddress = DirectHostAddress.TailCallStub;
}
else
{
directHostAddress = DirectHostAddress.Host;
}
_jumpTable.Add(new TableEntry <DirectHostAddress>(entry, guestAddress, directHostAddress));
}
}
public void ReadJumpTable(JumpTable jumpTable)
{
_jumpTable.Clear();
for (int entry = 1; entry <= jumpTable.TableEnd; entry++)
{
IntPtr addr = jumpTable.GetEntryAddressJumpTable(entry);
long guestAddress = Marshal.ReadInt64(addr, 0);
long hostAddress = Marshal.ReadInt64(addr, 8);
DirectHostAddress directHostAddress;
if (hostAddress == DirectCallStubs.DirectCallStub(false).ToInt64())
{
directHostAddress = DirectHostAddress.CallStub;
}
else if (hostAddress == DirectCallStubs.DirectCallStub(true).ToInt64())
{
directHostAddress = DirectHostAddress.TailCallStub;
}
else
{
directHostAddress = DirectHostAddress.Host;
}
_jumpTable.Add(new KeyValuePair <long, DirectHostAddress>(guestAddress, directHostAddress));
}
}
public void WriteJumpTable(JumpTable jumpTable, ConcurrentDictionary <ulong, TranslatedFunction> funcs)
{
// Writes internal state to jump table in-memory, after PtcJumpTable was deserialized.
foreach (var tableEntry in _jumpTable)
{
long guestAddress = tableEntry.GuestAddress;
DirectHostAddress directHostAddress = tableEntry.HostAddress;
long hostAddress;
if (directHostAddress == DirectHostAddress.CallStub)
{
hostAddress = DirectCallStubs.DirectCallStub(false).ToInt64();
}
else if (directHostAddress == DirectHostAddress.TailCallStub)
{
hostAddress = DirectCallStubs.DirectCallStub(true).ToInt64();
}
else if (directHostAddress == DirectHostAddress.Host)
{
if (funcs.TryGetValue((ulong)guestAddress, out TranslatedFunction func))
{
hostAddress = func.FuncPtr.ToInt64();
}
else
{
if (!PtcProfiler.ProfiledFuncs.TryGetValue((ulong)guestAddress, out var value) || !value.HighCq)
{
throw new KeyNotFoundException($"({nameof(guestAddress)} = 0x{(ulong)guestAddress:X16})");
}
hostAddress = 0L;
}
}
else
{
throw new InvalidOperationException(nameof(directHostAddress));
}
int entry = tableEntry.EntryIndex;
jumpTable.Table.SetEntry(entry);
jumpTable.ExpandIfNeededJumpTable(entry);
IntPtr addr = jumpTable.GetEntryAddressJumpTable(entry);
Marshal.WriteInt64(addr, 0, guestAddress);
Marshal.WriteInt64(addr, 8, hostAddress);
}
}
public void WriteJumpTable(JumpTable jumpTable, ConcurrentDictionary <ulong, TranslatedFunction> funcs)
{
jumpTable.ExpandIfNeededJumpTable(TableEnd);
int entry = 0;
foreach (var item in _jumpTable)
{
entry += 1;
long guestAddress = item.Key;
DirectHostAddress directHostAddress = item.Value;
long hostAddress;
if (directHostAddress == DirectHostAddress.CallStub)
{
hostAddress = DirectCallStubs.DirectCallStub(false).ToInt64();
}
else if (directHostAddress == DirectHostAddress.TailCallStub)
{
hostAddress = DirectCallStubs.DirectCallStub(true).ToInt64();
}
else if (directHostAddress == DirectHostAddress.Host)
{
if (funcs.TryGetValue((ulong)guestAddress, out TranslatedFunction func))
{
hostAddress = func.FuncPtr.ToInt64();
}
else
{
throw new KeyNotFoundException($"({nameof(guestAddress)} = 0x{(ulong)guestAddress:X16})");
}
}
else
{
throw new InvalidOperationException(nameof(directHostAddress));
}
IntPtr addr = jumpTable.GetEntryAddressJumpTable(entry);
Marshal.WriteInt64(addr, 0, guestAddress);
Marshal.WriteInt64(addr, 8, hostAddress);
}
}