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); } }