public void ReadDynamicTable(JumpTable jumpTable) { if (JumpTable.DynamicTableElems > 1) { throw new NotSupportedException(); } _dynamicTable.Clear(); for (int entry = 1; entry <= jumpTable.DynTableEnd; entry++) { IntPtr addr = jumpTable.GetEntryAddressDynamicTable(entry); long guestAddress = Marshal.ReadInt64(addr, 0); long hostAddress = Marshal.ReadInt64(addr, 8); IndirectHostAddress indirectHostAddress; if (hostAddress == DirectCallStubs.IndirectCallStub(false).ToInt64()) { indirectHostAddress = IndirectHostAddress.CallStub; } else if (hostAddress == DirectCallStubs.IndirectCallStub(true).ToInt64()) { indirectHostAddress = IndirectHostAddress.TailCallStub; } else { throw new InvalidOperationException($"({nameof(hostAddress)} = 0x{hostAddress:X16})"); } _dynamicTable.Add(new KeyValuePair <long, IndirectHostAddress>(guestAddress, indirectHostAddress)); } }
public void WriteDynamicTable(JumpTable jumpTable) { // Writes internal state to jump table in-memory, after PtcJumpTable was deserialized. if (JumpTable.DynamicTableElems > 1) { throw new NotSupportedException(); } foreach (var tableEntry in _dynamicTable) { long guestAddress = tableEntry.GuestAddress; IndirectHostAddress indirectHostAddress = tableEntry.HostAddress; long hostAddress; if (indirectHostAddress == IndirectHostAddress.CallStub) { hostAddress = DirectCallStubs.IndirectCallStub(false).ToInt64(); } else if (indirectHostAddress == IndirectHostAddress.TailCallStub) { hostAddress = DirectCallStubs.IndirectCallStub(true).ToInt64(); } else { throw new InvalidOperationException(nameof(indirectHostAddress)); } int entry = tableEntry.EntryIndex; jumpTable.DynTable.SetEntry(entry); jumpTable.ExpandIfNeededDynamicTable(entry); IntPtr addr = jumpTable.GetEntryAddressDynamicTable(entry); Marshal.WriteInt64(addr, 0, guestAddress); Marshal.WriteInt64(addr, 8, hostAddress); } }
public void WriteDynamicTable(JumpTable jumpTable) { if (JumpTable.DynamicTableElems > 1) { throw new NotSupportedException(); } jumpTable.ExpandIfNeededDynamicTable(DynTableEnd); int entry = 0; foreach (var item in _dynamicTable) { entry += 1; long guestAddress = item.Key; IndirectHostAddress indirectHostAddress = item.Value; long hostAddress; if (indirectHostAddress == IndirectHostAddress.CallStub) { hostAddress = DirectCallStubs.IndirectCallStub(false).ToInt64(); } else if (indirectHostAddress == IndirectHostAddress.TailCallStub) { hostAddress = DirectCallStubs.IndirectCallStub(true).ToInt64(); } else { throw new InvalidOperationException(nameof(indirectHostAddress)); } IntPtr addr = jumpTable.GetEntryAddressDynamicTable(entry); Marshal.WriteInt64(addr, 0, guestAddress); Marshal.WriteInt64(addr, 8, hostAddress); } }
public void ReadDynamicTable(JumpTable jumpTable) { // Reads in-memory jump table state and store internally for PtcJumpTable serialization. if (JumpTable.DynamicTableElems > 1) { throw new NotSupportedException(); } _dynamicTable.Clear(); IEnumerable <int> entries = jumpTable.DynTable.GetEntries(); foreach (int entry in entries) { IntPtr addr = jumpTable.GetEntryAddressDynamicTable(entry); long guestAddress = Marshal.ReadInt64(addr, 0); long hostAddress = Marshal.ReadInt64(addr, 8); IndirectHostAddress indirectHostAddress; if (hostAddress == DirectCallStubs.IndirectCallStub(false).ToInt64()) { indirectHostAddress = IndirectHostAddress.CallStub; } else if (hostAddress == DirectCallStubs.IndirectCallStub(true).ToInt64()) { indirectHostAddress = IndirectHostAddress.TailCallStub; } else { throw new InvalidOperationException($"({nameof(hostAddress)} = 0x{hostAddress:X16})"); } _dynamicTable.Add(new TableEntry <IndirectHostAddress>(entry, guestAddress, indirectHostAddress)); } }