public MethodDefinitionHandle EmitMethod()
{
s_emitCount++;
string basicName = "Assemblies_" + _name;
if (_name.Length > 200)
{
basicName = basicName.Substring(0, 200); // Cap length of name at 200, which is reasonably small.
}
string methodName = basicName + "_" + s_emitCount.ToString(CultureInfo.InvariantCulture);
return(_emitter.AddGlobalMethod(methodName, _il, 8));
}
// ...
/// <summary>
/// Emit a global method "MibcConfig" that will contain key-value settings in the following format:
/// ldstr "key1"
/// ldstr "value1"
/// pop
/// pop
/// ldstr "key2"
/// ldstr "value2"
/// pop
/// pop
/// ...
/// </summary>
public static void GenerateConfigData(MibcConfig config, TypeSystemMetadataEmitter emitter)
{
var buffer = new BlobBuilder();
var il = new InstructionEncoder(buffer);
foreach (FieldInfo mibcCfgField in typeof(MibcConfig).GetFields())
{
Debug.Assert(!mibcCfgField.IsStatic && mibcCfgField.FieldType == typeof(string));
il.LoadString(emitter.GetUserStringHandle(mibcCfgField.Name));
il.LoadString(emitter.GetUserStringHandle((string)mibcCfgField.GetValue(config) ?? ""));
il.OpCode(ILOpCode.Pop);
il.OpCode(ILOpCode.Pop);
}
il.OpCode(ILOpCode.Ret);
emitter.AddGlobalMethod(nameof(MibcConfig), il, 8);
}
static int GenerateMibcFile(TraceTypeSystemContext tsc, FileInfo outputFileName, ICollection <ProcessedMethodData> methodsToAttemptToPlaceIntoProfileData, bool validate)
{
TypeSystemMetadataEmitter emitter = new TypeSystemMetadataEmitter(new AssemblyName(outputFileName.Name), tsc);
SortedDictionary <string, MIbcGroup> groups = new SortedDictionary <string, MIbcGroup>();
StringBuilder mibcGroupNameBuilder = new StringBuilder();
HashSet <string> assembliesAssociatedWithMethod = new HashSet <string>();
foreach (var entry in methodsToAttemptToPlaceIntoProfileData)
{
MethodDesc method = entry.Method;
assembliesAssociatedWithMethod.Clear();
AddAssembliesAssociatedWithMethod(method, assembliesAssociatedWithMethod, out string definingAssembly);
string[] assemblyNames = new string[assembliesAssociatedWithMethod.Count];
int i = 1;
assemblyNames[0] = definingAssembly;
foreach (string s in assembliesAssociatedWithMethod)
{
if (s.Equals(definingAssembly))
{
continue;
}
assemblyNames[i++] = s;
}
// Always keep the defining assembly as the first name
Array.Sort(assemblyNames, 1, assemblyNames.Length - 1);
mibcGroupNameBuilder.Clear();
foreach (string s in assemblyNames)
{
mibcGroupNameBuilder.Append(s);
mibcGroupNameBuilder.Append(';');
}
string mibcGroupName = mibcGroupNameBuilder.ToString();
if (!groups.TryGetValue(mibcGroupName, out MIbcGroup mibcGroup))
{
mibcGroup = new MIbcGroup(mibcGroupName, emitter);
groups.Add(mibcGroupName, mibcGroup);
}
mibcGroup.AddProcessedMethodData(entry);
}
var buffer = new BlobBuilder();
var il = new InstructionEncoder(buffer);
foreach (var entry in groups)
{
il.LoadString(emitter.GetUserStringHandle(entry.Key));
il.OpCode(ILOpCode.Ldtoken);
il.Token(entry.Value.EmitMethod());
il.OpCode(ILOpCode.Pop);
}
emitter.AddGlobalMethod("AssemblyDictionary", il, 8);
MemoryStream peFile = new MemoryStream();
emitter.SerializeToStream(peFile);
peFile.Position = 0;
if (outputFileName.Exists)
{
outputFileName.Delete();
}
using (ZipArchive file = ZipFile.Open(outputFileName.FullName, ZipArchiveMode.Create))
{
var entry = file.CreateEntry(outputFileName.Name + ".dll", CompressionLevel.Optimal);
using (Stream archiveStream = entry.Open())
{
peFile.CopyTo(archiveStream);
}
}
Console.WriteLine($"Generated {outputFileName.FullName}");
if (validate)
{
return(ValidateMIbcData(tsc, outputFileName, peFile.ToArray(), methodsToAttemptToPlaceIntoProfileData));
}
else
{
return(0);
}
}