public int GetHashCode(RawMethodRow obj) => (int)obj.RVA + rol(obj.ImplFlags, 3) + rol(obj.Flags, 7) + rol(obj.Name, 11) + rol(obj.Signature, 15) + rol(obj.ParamList, 19);
/// <summary>
/// Reads a raw <c>Method</c> row or returns false if the row doesn't exist
/// </summary>
/// <param name="rid">Row ID</param>
/// <param name="row">Row data</param>
/// <returns></returns>
public bool TryReadMethodRow(uint rid, out RawMethodRow row)
{
var table = MethodTable;
if (table.IsInvalidRID(rid))
{
row = default;
return(false);
}
var mrr = methodRowReader;
if (mrr != null && mrr.TryReadRow(rid, out row))
{
return(true);
}
var reader = table.DataReader;
reader.Position = (rid - 1) * (uint)table.TableInfo.RowSize;
row = new RawMethodRow(
reader.Unsafe_ReadUInt32(),
reader.Unsafe_ReadUInt16(),
reader.Unsafe_ReadUInt16(),
table.Column3.Unsafe_Read24(ref reader),
table.Column4.Unsafe_Read24(ref reader),
table.Column5.Unsafe_Read24(ref reader));
return(true);
}
public bool Equals(RawMethodRow x, RawMethodRow y) => x.RVA == y.RVA && x.ImplFlags == y.ImplFlags && x.Flags == y.Flags && x.Name == y.Name && x.Signature == y.Signature && x.ParamList == y.ParamList;
public DmdMethodDefMD(DmdEcma335MetadataReader reader, RawMethodRow row, uint rid, string name, DmdType declaringType, DmdType reflectedType) : base(rid, declaringType, reflectedType)
{
this.reader = reader ?? throw new ArgumentNullException(nameof(reader));
MethodImplementationFlags = (DmdMethodImplAttributes)row.ImplFlags;
Attributes = (DmdMethodAttributes)row.Flags;
Name = name ?? throw new ArgumentNullException(nameof(name));
methodSignature = reader.ReadMethodSignature(row.Signature, DeclaringType.GetGenericArguments(), GetGenericArguments(), isProperty: false);
}
void InitializeRawRow()
{
if (rawRow != null)
{
return;
}
rawRow = readerModule.TablesStream.ReadMethodRow(rid);
}
public static void Erase(NativeModuleWriter writer, ModuleDefMD module)
{
if (writer == null || module == null)
{
return;
}
List <Tuple <uint, uint, byte[]> > sections = new List <Tuple <uint, uint, byte[]> >();
MemoryStream s = new MemoryStream();
foreach (NativeModuleWriter.OrigSection origSect in writer.OrigSections)
{
var oldChunk = origSect.Chunk;
ImageSectionHeader sectHdr = origSect.PESection;
s.SetLength(0L);
oldChunk.WriteTo(new BinaryWriter(s));
byte[] buf = s.ToArray();
var newChunk = new BinaryReaderChunk(MemoryImageStream.Create(buf), oldChunk.GetVirtualSize());
newChunk.SetOffset(oldChunk.FileOffset, oldChunk.RVA);
origSect.Chunk = newChunk;
sections.Add(Tuple.Create <uint, uint, byte[]>(sectHdr.PointerToRawData, sectHdr.PointerToRawData + sectHdr.SizeOfRawData, buf));
}
var md = module.MetaData;
uint row = md.TablesStream.MethodTable.Rows;
for (uint i = 1u; i <= row; i += 1u)
{
RawMethodRow method = md.TablesStream.ReadMethodRow(i);
if ((method.ImplFlags & 3) == 0)
{
Erase(sections, (uint)md.PEImage.ToFileOffset((RVA)method.RVA));
}
}
ImageDataDirectory res = md.ImageCor20Header.Resources;
if (res.Size > 0u)
{
Erase(sections, (uint)res.StartOffset, res.Size);
}
Erase(sections, md.ImageCor20Header);
Erase(sections, md.MetaDataHeader);// md.MetadataHeader);
foreach (DotNetStream stream in md.AllStreams)
{
Erase(sections, stream);
}
}
void InjectNativeCode(object sender, ModuleWriterEventArgs e) {
var writer = (ModuleWriterBase)sender;
if (e.Event == ModuleWriterEvent.MDEndWriteMethodBodies) {
for (int n = 0; n < nativeCodes.Count; n++)
nativeCodes[n] = new Tuple<MethodDef, byte[], MethodBody>(
nativeCodes[n].Item1,
nativeCodes[n].Item2,
writer.MethodBodies.Add(new MethodBody(nativeCodes[n].Item2)));
}
else if (e.Event == ModuleWriterEvent.EndCalculateRvasAndFileOffsets) {
foreach (var native in nativeCodes) {
uint rid = writer.Metadata.GetRid(native.Item1);
RawMethodRow methodRow = writer.Metadata.TablesHeap.MethodTable[rid];
writer.Metadata.TablesHeap.MethodTable[rid] = new RawMethodRow(
(uint)native.Item3.RVA,
methodRow.ImplFlags,
methodRow.Flags,
methodRow.Name,
methodRow.Signature,
methodRow.ParamList);
}
}
}
/// <summary>
/// Patches all columns and blob signatures that reference a moved TypeDef so they reference the new TypeRef
/// </summary>
void PatchTypeTokenReferences(TypeDef nonNestedEditedType)
{
if (remappedTypeTokens.Count == 0)
{
return;
}
// NOTE: We don't patch the following:
// - Method bodies
// - All MemberRefs referenced by method bodies
// - StandAloneSig.Signature. It's only used by method bodies
// - MethodSpec.Instantiation. It's only used by method bodies
// - Custom attribute blobs. Could reference the edited type but not likely to cause a problem.
// - Marshal blobs. Could reference the edited type but not likely to cause a problem.
// The MD writer doesn't write the FieldMarshal table.
var tablesHeap = mdEditor.TablesHeap;
var typeSigDict = new Dictionary <uint, uint>();
var callConvSigDict = new Dictionary <uint, uint>();
MDTable table;
byte * p;
int rowSize;
ColumnInfo column, column2;
uint i, codedToken, newToken, sig, newSig, rid;
MDToken token;
// Patch the TypeDef table
{
table = mdEditor.RealMetadata.TablesStream.TypeDefTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[3];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
codedToken = column.Size == 2 ? *(ushort *)p : *(uint *)p;
if (!CodedToken.TypeDefOrRef.Decode(codedToken, out token))
{
continue;
}
if (remappedTypeTokens.TryGetValue(token.Raw, out newToken))
{
var row = tablesHeap.TypeDefTable.Get(i + 1);
row = new RawTypeDefRow(row.Flags, row.Name, row.Namespace, CodedToken.TypeDefOrRef.Encode(newToken), row.FieldList, row.MethodList);
tablesHeap.TypeDefTable.Set(i + 1, ref row);
}
}
}
// Patch the Field table
{
table = mdEditor.RealMetadata.TablesStream.FieldTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[2];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
sig = column.Size == 2 ? *(ushort *)p : *(uint *)p;
newSig = PatchCallingConventionSignature(callConvSigDict, sig);
if (newSig != sig)
{
var row = tablesHeap.FieldTable.Get(i + 1);
row = new RawFieldRow(row.Flags, row.Name, newSig);
tablesHeap.FieldTable.Set(i + 1, ref row);
}
}
}
// Patch the Method table
{
table = mdEditor.RealMetadata.TablesStream.MethodTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[4];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
sig = column.Size == 2 ? *(ushort *)p : *(uint *)p;
newSig = PatchCallingConventionSignature(callConvSigDict, sig);
if (newSig != sig)
{
var row = tablesHeap.MethodTable.Get(i + 1);
row = new RawMethodRow(row.RVA, row.ImplFlags, row.Flags, row.Name, newSig, row.ParamList);
tablesHeap.MethodTable.Set(i + 1, ref row);
}
}
}
// Patch the InterfaceImpl table
{
table = mdEditor.RealMetadata.TablesStream.InterfaceImplTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[1];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
codedToken = column.Size == 2 ? *(ushort *)p : *(uint *)p;
if (!CodedToken.TypeDefOrRef.Decode(codedToken, out token))
{
continue;
}
if (remappedTypeTokens.TryGetValue(token.Raw, out newToken))
{
var row = tablesHeap.InterfaceImplTable.Get(i + 1);
row = new RawInterfaceImplRow(row.Class, CodedToken.TypeDefOrRef.Encode(newToken));
tablesHeap.InterfaceImplTable.Set(i + 1, ref row);
}
}
}
//TODO: PERF: If needed, this table could mostly be skipped. We only need to update refs from:
// CustomAttribute.Type, MethodImpl.MethodBody, MethodImpl.MethodDeclaration
// CustomAttribute.Type almost never references the edited type, and if it does, the
// edited type, or any of its nested types, is an attribute. Quick test: this block
// took ~25% of the total time (patch file, write new MD, test file was dnSpy.exe = 3.3MB).
// Patch the MemberRef table
{
table = mdEditor.RealMetadata.TablesStream.MemberRefTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[0];
column2 = table.Columns[2];
for (i = 0; i < table.Rows; i++, p += rowSize)
{
codedToken = column.Size == 2 ? *(ushort *)p : *(uint *)p;
if (!CodedToken.MemberRefParent.Decode(codedToken, out token))
{
continue;
}
rid = i + 1;
RawMemberRefRow row;
switch (token.Table)
{
case Table.TypeRef:
case Table.TypeDef:
case Table.TypeSpec:
if (remappedTypeTokens.TryGetValue(token.Raw, out newToken))
{
row = tablesHeap.MemberRefTable.Get(rid);
row = new RawMemberRefRow(CodedToken.MemberRefParent.Encode(newToken), row.Name, row.Signature);
tablesHeap.MemberRefTable.Set(rid, ref row);
}
break;
case Table.ModuleRef:
if (nonNestedEditedType.IsGlobalModuleType && CheckResolutionScopeIsSameModule(token, nonNestedEditedType.Module))
{
if (remappedTypeTokens.TryGetValue(nonNestedEditedType.MDToken.Raw, out newToken))
{
row = tablesHeap.MemberRefTable.Get(rid);
row = new RawMemberRefRow(CodedToken.MemberRefParent.Encode(newToken), row.Name, row.Signature);
tablesHeap.MemberRefTable.Set(rid, ref row);
}
}
break;
case Table.Method:
break;
default:
Debug.Fail("Impossible");
break;
}
sig = column2.Size == 2 ? *(ushort *)(p + column2.Offset) : *(uint *)(p + column2.Offset);
newSig = PatchCallingConventionSignature(callConvSigDict, sig);
if (sig != newSig)
{
row = tablesHeap.MemberRefTable.Get(rid);
row = new RawMemberRefRow(row.Class, row.Name, newSig);
tablesHeap.MemberRefTable.Set(rid, ref row);
}
}
}
// Patch the Event table
{
table = mdEditor.RealMetadata.TablesStream.EventTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[2];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
codedToken = column.Size == 2 ? *(ushort *)p : *(uint *)p;
if (!CodedToken.TypeDefOrRef.Decode(codedToken, out token))
{
continue;
}
if (remappedTypeTokens.TryGetValue(token.Raw, out newToken))
{
var row = tablesHeap.EventTable.Get(i + 1);
row = new RawEventRow(row.EventFlags, row.Name, CodedToken.TypeDefOrRef.Encode(newToken));
tablesHeap.EventTable.Set(i + 1, ref row);
}
}
}
// Patch the Property table
{
table = mdEditor.RealMetadata.TablesStream.PropertyTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[2];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
sig = column.Size == 2 ? *(ushort *)p : *(uint *)p;
newSig = PatchCallingConventionSignature(callConvSigDict, sig);
if (newSig != sig)
{
var row = tablesHeap.PropertyTable.Get(i + 1);
row = new RawPropertyRow(row.PropFlags, row.Name, newSig);
tablesHeap.PropertyTable.Set(i + 1, ref row);
}
}
}
// Patch the TypeSpec table
{
table = mdEditor.RealMetadata.TablesStream.TypeSpecTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[0];
for (i = 0; i < table.Rows; i++, p += rowSize)
{
sig = column.Size == 2 ? *(ushort *)p : *(uint *)p;
newSig = PatchTypeSignature(typeSigDict, sig);
if (newSig != sig)
{
var row = new RawTypeSpecRow(newSig);
tablesHeap.TypeSpecTable.Set(i + 1, ref row);
}
}
}
// Patch the GenericParam table
if (mdEditor.RealMetadata.TablesStream.GenericParamTable.Columns.Count == 5)
{
table = mdEditor.RealMetadata.TablesStream.GenericParamTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[4];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
codedToken = column.Size == 2 ? *(ushort *)p : *(uint *)p;
if (!CodedToken.TypeDefOrRef.Decode(codedToken, out token))
{
continue;
}
if (remappedTypeTokens.TryGetValue(token.Raw, out newToken))
{
var row = tablesHeap.GenericParamTable.Get(i + 1);
row = new RawGenericParamRow(row.Number, row.Flags, row.Owner, row.Name, CodedToken.TypeDefOrRef.Encode(newToken));
tablesHeap.GenericParamTable.Set(i + 1, ref row);
}
}
}
// Patch the GenericParamConstraint table
{
table = mdEditor.RealMetadata.TablesStream.GenericParamConstraintTable;
p = peFile + (int)table.StartOffset;
rowSize = (int)table.RowSize;
column = table.Columns[1];
p += column.Offset;
for (i = 0; i < table.Rows; i++, p += rowSize)
{
codedToken = column.Size == 2 ? *(ushort *)p : *(uint *)p;
if (!CodedToken.TypeDefOrRef.Decode(codedToken, out token))
{
continue;
}
if (remappedTypeTokens.TryGetValue(token.Raw, out newToken))
{
var row = tablesHeap.GenericParamConstraintTable.Get(i + 1);
row = new RawGenericParamConstraintRow(row.Owner, CodedToken.TypeDefOrRef.Encode(newToken));
tablesHeap.GenericParamConstraintTable.Set(i + 1, ref row);
}
}
}
}
/// <inheritdoc/>
protected override void AllocateMemberDefRids()
{
int numTypes = allTypeDefs.Count;
int typeNum = 0;
int notifyNum = 0;
const int numNotifyEvents = 5; // AllocateMemberDefRids0 - AllocateMemberDefRids4
int notifyAfter = numTypes / numNotifyEvents;
uint fieldListRid = 1, methodListRid = 1;
uint eventListRid = 1, propertyListRid = 1;
uint paramListRid = 1;
foreach (var type in allTypeDefs)
{
if (typeNum++ == notifyAfter && notifyNum < numNotifyEvents)
{
Listener.OnMetaDataEvent(this, MetaDataEvent.AllocateMemberDefRids0 + notifyNum++);
notifyAfter += numTypes / numNotifyEvents;
}
if (type == null)
{
continue;
}
uint typeRid = GetRid(type);
var typeRow = tablesHeap.TypeDefTable[typeRid];
typeRow.FieldList = fieldListRid;
typeRow.MethodList = methodListRid;
foreach (var field in type.Fields)
{
if (field == null)
{
continue;
}
uint rid = fieldListRid++;
if (rid != tablesHeap.FieldTable.Create(new RawFieldRow()))
{
throw new ModuleWriterException("Invalid field rid");
}
fieldDefInfos.Add(field, rid);
}
foreach (var method in type.Methods)
{
if (method == null)
{
continue;
}
uint rid = methodListRid++;
var row = new RawMethodRow(0, 0, 0, 0, 0, paramListRid);
if (rid != tablesHeap.MethodTable.Create(row))
{
throw new ModuleWriterException("Invalid method rid");
}
methodDefInfos.Add(method, rid);
foreach (var pd in Sort(method.ParamDefs))
{
if (pd == null)
{
continue;
}
uint pdRid = paramListRid++;
if (pdRid != tablesHeap.ParamTable.Create(new RawParamRow()))
{
throw new ModuleWriterException("Invalid param rid");
}
paramDefInfos.Add(pd, pdRid);
}
}
if (!IsEmpty(type.Events))
{
uint eventMapRid = tablesHeap.EventMapTable.Create(new RawEventMapRow(typeRid, eventListRid));
eventMapInfos.Add(type, eventMapRid);
foreach (var evt in type.Events)
{
if (evt == null)
{
continue;
}
uint rid = eventListRid++;
if (rid != tablesHeap.EventTable.Create(new RawEventRow()))
{
throw new ModuleWriterException("Invalid event rid");
}
eventDefInfos.Add(evt, rid);
}
}
if (!IsEmpty(type.Properties))
{
uint propertyMapRid = tablesHeap.PropertyMapTable.Create(new RawPropertyMapRow(typeRid, propertyListRid));
propertyMapInfos.Add(type, propertyMapRid);
foreach (var prop in type.Properties)
{
if (prop == null)
{
continue;
}
uint rid = propertyListRid++;
if (rid != tablesHeap.PropertyTable.Create(new RawPropertyRow()))
{
throw new ModuleWriterException("Invalid property rid");
}
propertyDefInfos.Add(prop, rid);
}
}
}
while (notifyNum < numNotifyEvents)
{
Listener.OnMetaDataEvent(this, MetaDataEvent.AllocateMemberDefRids0 + notifyNum++);
}
}
/// <inheritdoc/>
protected override void AllocateMemberDefRids()
{
uint fieldListRid = 1, methodListRid = 1;
uint eventListRid = 1, propertyListRid = 1;
uint paramListRid = 1;
foreach (var type in allTypeDefs)
{
if (type == null)
{
continue;
}
uint typeRid = GetRid(type);
var typeRow = tablesHeap.TypeDefTable[typeRid];
typeRow.FieldList = fieldListRid;
typeRow.MethodList = methodListRid;
foreach (var field in type.Fields)
{
if (field == null)
{
continue;
}
uint rid = fieldListRid++;
if (rid != tablesHeap.FieldTable.Create(new RawFieldRow()))
{
throw new ModuleWriterException("Invalid field rid");
}
fieldDefInfos.Add(field, rid);
}
foreach (var method in type.Methods)
{
if (method == null)
{
continue;
}
uint rid = methodListRid++;
var row = new RawMethodRow(0, 0, 0, 0, 0, paramListRid);
if (rid != tablesHeap.MethodTable.Create(row))
{
throw new ModuleWriterException("Invalid method rid");
}
methodDefInfos.Add(method, rid);
foreach (var pd in Sort(method.ParamDefs))
{
if (pd == null)
{
continue;
}
uint pdRid = paramListRid++;
if (pdRid != tablesHeap.ParamTable.Create(new RawParamRow()))
{
throw new ModuleWriterException("Invalid param rid");
}
paramDefInfos.Add(pd, pdRid);
}
}
if (!IsEmpty(type.Events))
{
uint eventMapRid = tablesHeap.EventMapTable.Create(new RawEventMapRow(typeRid, eventListRid));
eventMapInfos.Add(type, eventMapRid);
foreach (var evt in type.Events)
{
if (evt == null)
{
continue;
}
uint rid = eventListRid++;
if (rid != tablesHeap.EventTable.Create(new RawEventRow()))
{
throw new ModuleWriterException("Invalid event rid");
}
eventDefInfos.Add(evt, rid);
}
}
if (!IsEmpty(type.Properties))
{
uint propertyMapRid = tablesHeap.PropertyMapTable.Create(new RawPropertyMapRow(typeRid, propertyListRid));
propertyMapInfos.Add(type, propertyMapRid);
foreach (var prop in type.Properties)
{
if (prop == null)
{
continue;
}
uint rid = propertyListRid++;
if (rid != tablesHeap.PropertyTable.Create(new RawPropertyRow()))
{
throw new ModuleWriterException("Invalid property rid");
}
propertyDefInfos.Add(prop, rid);
}
}
}
}
static uint ReadMethodColumnMethod(ref RawMethodRow row, int index) => row[index];
/// <inheritdoc/>
protected override void AllocateMemberDefRids()
{
int numTypes = allTypeDefs.Length;
int typeNum = 0;
int notifyNum = 0;
const int numNotifyEvents = 5;
int notifyAfter = numTypes / numNotifyEvents;
uint fieldListRid = 1, methodListRid = 1;
uint eventListRid = 1, propertyListRid = 1;
uint paramListRid = 1;
int count;
foreach (var type in allTypeDefs)
{
if (typeNum++ == notifyAfter && notifyNum < numNotifyEvents)
{
RaiseProgress(Writer.MetadataEvent.AllocateMemberDefRids, (double)typeNum / numTypes);
notifyNum++;
notifyAfter = (int)((double)numTypes / numNotifyEvents * (notifyNum + 1));
}
if (type == null)
{
continue;
}
uint typeRid = GetRid(type);
var typeRow = tablesHeap.TypeDefTable[typeRid];
typeRow = new RawTypeDefRow(typeRow.Flags, typeRow.Name, typeRow.Namespace, typeRow.Extends, fieldListRid, methodListRid);
tablesHeap.TypeDefTable[typeRid] = typeRow;
var fields = type.Fields;
count = fields.Count;
for (int i = 0; i < count; i++)
{
var field = fields[i];
if (field == null)
{
continue;
}
uint rid = fieldListRid++;
if (rid != tablesHeap.FieldTable.Create(new RawFieldRow()))
{
throw new ModuleWriterException("Invalid field rid");
}
fieldDefInfos.Add(field, rid);
}
var methods = type.Methods;
count = methods.Count;
for (int i = 0; i < count; i++)
{
var method = methods[i];
if (method == null)
{
continue;
}
uint rid = methodListRid++;
var row = new RawMethodRow(0, 0, 0, 0, 0, paramListRid);
if (rid != tablesHeap.MethodTable.Create(row))
{
throw new ModuleWriterException("Invalid method rid");
}
methodDefInfos.Add(method, rid);
foreach (var pd in Sort(method.ParamDefs))
{
if (pd == null)
{
continue;
}
uint pdRid = paramListRid++;
if (pdRid != tablesHeap.ParamTable.Create(new RawParamRow()))
{
throw new ModuleWriterException("Invalid param rid");
}
paramDefInfos.Add(pd, pdRid);
}
}
if (!IsEmpty(type.Events))
{
uint eventMapRid = tablesHeap.EventMapTable.Create(new RawEventMapRow(typeRid, eventListRid));
eventMapInfos.Add(type, eventMapRid);
var events = type.Events;
count = events.Count;
for (int i = 0; i < count; i++)
{
var evt = events[i];
if (evt == null)
{
continue;
}
uint rid = eventListRid++;
if (rid != tablesHeap.EventTable.Create(new RawEventRow()))
{
throw new ModuleWriterException("Invalid event rid");
}
eventDefInfos.Add(evt, rid);
}
}
if (!IsEmpty(type.Properties))
{
uint propertyMapRid = tablesHeap.PropertyMapTable.Create(new RawPropertyMapRow(typeRid, propertyListRid));
propertyMapInfos.Add(type, propertyMapRid);
var properties = type.Properties;
count = properties.Count;
for (int i = 0; i < count; i++)
{
var prop = properties[i];
if (prop == null)
{
continue;
}
uint rid = propertyListRid++;
if (rid != tablesHeap.PropertyTable.Create(new RawPropertyRow()))
{
throw new ModuleWriterException("Invalid property rid");
}
propertyDefInfos.Add(prop, rid);
}
}
}
}
void CreateSection(ModuleWriterBase writer)
{
// move some PE parts to separate section to prevent it from being hashed
var peSection = new PESection("", 0x60000020);
bool moved = false;
uint alignment;
if (writer.StrongNameSignature != null)
{
alignment = writer.TextSection.Remove(writer.StrongNameSignature).Value;
peSection.Add(writer.StrongNameSignature, alignment);
moved = true;
}
var managedWriter = writer as ModuleWriter;
if (managedWriter != null)
{
if (managedWriter.ImportAddressTable != null)
{
alignment = writer.TextSection.Remove(managedWriter.ImportAddressTable).Value;
peSection.Add(managedWriter.ImportAddressTable, alignment);
moved = true;
}
if (managedWriter.StartupStub != null)
{
alignment = writer.TextSection.Remove(managedWriter.StartupStub).Value;
peSection.Add(managedWriter.StartupStub, alignment);
moved = true;
}
}
if (moved)
{
writer.Sections.AddBeforeReloc(peSection);
}
// create section
var nameBuffer = new byte[8];
nameBuffer[0] = (byte)(name1 >> 0);
nameBuffer[1] = (byte)(name1 >> 8);
nameBuffer[2] = (byte)(name1 >> 16);
nameBuffer[3] = (byte)(name1 >> 24);
nameBuffer[4] = (byte)(name2 >> 0);
nameBuffer[5] = (byte)(name2 >> 8);
nameBuffer[6] = (byte)(name2 >> 16);
nameBuffer[7] = (byte)(name2 >> 24);
var newSection = new PESection(Encoding.ASCII.GetString(nameBuffer), 0xE0000040);
writer.Sections.InsertBeforeReloc(random.NextInt32(writer.Sections.Count), newSection);
// random padding at beginning to prevent revealing hash key
newSection.Add(new ByteArrayChunk(random.NextBytes(0x10)), 0x10);
// create index
var bodyIndex = new JITBodyIndex(methods.Select(method => writer.Metadata.GetToken(method).Raw));
newSection.Add(bodyIndex, 0x10);
// save methods
foreach (MethodDef method in methods.WithProgress(context.Logger))
{
if (!method.HasBody)
{
continue;
}
MDToken token = writer.Metadata.GetToken(method);
var jitBody = new JITMethodBody();
var bodyWriter = new JITMethodBodyWriter(writer.Metadata, method.Body, jitBody, random.NextUInt32(), writer.Metadata.KeepOldMaxStack || method.Body.KeepOldMaxStack);
bodyWriter.Write();
jitBody.Serialize(token.Raw, key, fieldLayout);
bodyIndex.Add(token.Raw, jitBody);
method.Body = NopBody;
RawMethodRow methodRow = writer.Metadata.TablesHeap.MethodTable[token.Rid];
writer.Metadata.TablesHeap.MethodTable[token.Rid] = new RawMethodRow(
methodRow.RVA,
(ushort)(methodRow.ImplFlags | (ushort)MethodImplAttributes.NoInlining),
methodRow.Flags,
methodRow.Name,
methodRow.Signature,
methodRow.ParamList);
context.CheckCancellation();
}
bodyIndex.PopulateSection(newSection);
// padding to prevent bad size due to shift division
newSection.Add(new ByteArrayChunk(new byte[4]), 4);
}