private string GenerateCode(string namespaceName)
{
StringBuilder result = new StringBuilder();
result.AppendLine("using System;");
result.AppendLine("using System.Collections.Generic;");
result.AppendLine();
result.AppendLine("namespace " + namespaceName);
result.AppendLine("{");
result.AppendLine(" partial class NativeScript");
result.AppendLine(" {");
result.AppendLine(" public class Script_" + NativeScript.GetVersionName(version) + " : Script");
result.AppendLine(" {");
result.AppendLine(" public Script_" + NativeScript.GetVersionName(version) + "()");
result.AppendLine(" {");
result.AppendLine(" ScriptHash = \"" + GetScriptHash() + "\";");
result.AppendLine(" GlobalsAddressOffset = " + GlobalsAddressOffset + ";");
result.AppendLine(" Functions = new Dictionary<string, int>()");
result.AppendLine(" {");
foreach (KeyValuePair <Function, int> functionOffset in FunctionOffsets)
{
result.AppendLine(" { \"" + functionOffset.Key.Name + "\", " + functionOffset.Value + " },");
}
result.AppendLine(" };");
result.AppendLine(" Buffer = new byte[]");
result.AppendLine(" {");
result.Append(" ");
for (int i = 0; i < Buffer.Length; i++)
{
result.Append("0x" + Buffer[i].ToString("X2"));
if (i < Buffer.Length - 1)
{
result.Append(",");
}
if ((i + 1) % 16 == 0)
{
result.AppendLine();
result.Append(" ");
}
}
result.AppendLine();
result.AppendLine(" };");
result.AppendLine(" }");
result.AppendLine(" }");
result.AppendLine(" }");
result.AppendLine("}");
return(result.ToString());
}
public static void Compile(GameVersion version, bool optimize)
{
string scriptPath = GetScriptPath();
if (string.IsNullOrEmpty(scriptPath) || !File.Exists(scriptPath))
{
return;
}
string versionScriptPath = Path.ChangeExtension(scriptPath, NativeScript.GetVersionName(version) + ".c");
if (string.IsNullOrEmpty(versionScriptPath) || !File.Exists(versionScriptPath))
{
return;
}
string text = File.ReadAllText(scriptPath);
text = text.Replace(scriptReplaceStr, File.ReadAllText(versionScriptPath));
string tempScriptPath = Path.ChangeExtension(scriptPath, "temp.c");
File.WriteAllText(tempScriptPath, text);
string[] lines = text.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
if (lines.Length < 2)
{
return;
}
string compiler = lines[0].Trim('/', ' ');
string dumpbin = lines[1].Trim('/', ' ');
if (string.IsNullOrEmpty(compiler) || string.IsNullOrEmpty(dumpbin))
{
return;
}
if (!File.Exists(compiler))
{
compiler = Path.Combine(Path.GetDirectoryName(scriptPath), compiler);
}
if (!File.Exists(dumpbin))
{
dumpbin = Path.Combine(Path.GetDirectoryName(scriptPath), dumpbin);
}
if (!File.Exists(compiler) || !File.Exists(dumpbin))
{
return;
}
string scriptDir = Path.GetDirectoryName(scriptPath);
string objPath = Path.ChangeExtension(tempScriptPath, ".obj");
string additionalArgs = "/GS- ";// disable buffer security check (security cookie stuff)
if (optimize)
{
additionalArgs += "/O2";
}
string compileOutput, compileError;
if (RunProcess(compiler, "/c " + additionalArgs + " \"" + tempScriptPath + "\"", scriptDir, out compileOutput, out compileError) &&
!compileOutput.Contains("error") && File.Exists(objPath))
{
// Compile was successful, get the disasm
string disasmOutput, disasmError;
if (RunProcess(dumpbin, "\"" + objPath + "\" /disasm", scriptDir, out disasmOutput, out disasmError) &&
!disasmOutput.Contains("fatal error"))
{
string lastLine = string.Empty;
Module module = new Module(version);
Function currentFunction = null;
string instructionStr = string.Empty;
string instructionBytes = string.Empty;
string[] splitted = disasmOutput.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string line in splitted)
{
if (line.StartsWith(" 0"))
{
if (lastLine.EndsWith(":") && !lastLine.StartsWith(" "))
{
Debug.Assert(currentFunction == null);
currentFunction = new Function(lastLine.Substring(0, lastLine.Length - 1));
module.Functions.Add(currentFunction.Name, currentFunction);
}
if (!string.IsNullOrEmpty(instructionStr))
{
currentFunction.AddInstruction(instructionBytes, instructionStr);
}
instructionBytes = string.Empty;
instructionStr = string.Empty;
string str = line.Substring(line.IndexOf(':') + 1);
int bytesEnd = str.IndexOf(" ");
instructionBytes = str.Substring(0, bytesEnd).Trim();
instructionStr = str.Substring(bytesEnd).Trim();
// Remove additional spacing between the mnemonic and the rest of the instruction
int firstSpace = instructionStr.IndexOf(' ');
while (true)
{
if (instructionStr[firstSpace + 1] == ' ')
{
instructionStr = instructionStr.Remove(firstSpace + 1, 1);
}
else
{
break;
}
}
}
else if (line == " Summary")
{
break;
}
else if (line.StartsWith(" "))
{
instructionBytes += line.Trim();
}
else
{
if (!string.IsNullOrEmpty(instructionStr) && currentFunction != null)
{
currentFunction.AddInstruction(instructionBytes, instructionStr);
}
currentFunction = null;
instructionBytes = string.Empty;
instructionStr = string.Empty;
}
lastLine = line;
}
if (!string.IsNullOrEmpty(instructionStr))
{
currentFunction.AddInstruction(instructionBytes, instructionStr);
}
module.Build();
}
}
else
{
Debug.WriteLine("Compile failed " + compileOutput);
Debugger.Break();
}
}
public void Build()
{
List <byte> buffer = new List <byte>();
FunctionOffsets.Clear();
GetGlobalsFunction = null;
GlobalsAddressOffset = -1;
int offset = 0;
foreach (Function function in Functions.Values)
{
if (function.Name == getGlobalsFunctionName)
{
GetGlobalsFunction = function;
GlobalsAddressOffset = offset + 2;
Debug.Assert(function.Instructions[0].CompleteInstruction == "mov rax,0AAAAAAAAAAAAAAAAh");
for (int i = 0; i < 8; i++)
{
function.Instructions[0].Bytes[i + 2] = 0;
}
}
int functionLen = 0;
foreach (Instruction instruction in function.Instructions)
{
functionLen += instruction.Bytes.Length;
}
FunctionOffsets.Add(function, offset);
offset += functionLen;
}
foreach (Function function in Functions.Values)
{
foreach (Instruction instruction in function.Instructions)
{
if (instruction.IsCall && instruction.Bytes[0] == 0xE8)
{
string functionName = instruction.CompleteInstruction.Substring(
instruction.CompleteInstruction.IndexOf(' ') + 1).Trim();
int instructionOffset = FunctionOffsets[function] + instruction.Offset;
int targetFuncOffset = FunctionOffsets[Functions[functionName]];
byte[] relativeAddr = BitConverter.GetBytes(targetFuncOffset - instructionOffset - 5);
instruction.Bytes[1] = relativeAddr[0];
instruction.Bytes[2] = relativeAddr[1];
instruction.Bytes[3] = relativeAddr[2];
instruction.Bytes[4] = relativeAddr[3];
}
}
function.BuildBytes();
buffer.AddRange(function.Bytes);
}
Buffer = buffer.ToArray();
Code = GenerateCode();
string outputFilePath = GetSourceFilePath(Path.ChangeExtension(outputFileName, NativeScript.GetVersionName(version) + ".cs"));
if (File.Exists(outputFilePath))
{
string oldCode = File.ReadAllText(outputFilePath);
if (oldCode != Code)
{
File.WriteAllText(outputFilePath, Code);
}
}
else
{
Debug.WriteLine(Code);
Debugger.Break();
}
}