/// <summary>
/// Initialize generic method instances with argument types and runtime function indices from InstanceMethodEntrypoints
/// </summary>
private void ParseInstanceMethodEntrypoints(bool[] isEntryPoint)
{
if (!R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_INSTANCE_METHOD_ENTRYPOINTS))
{
return;
}
R2RSection instMethodEntryPointSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_INSTANCE_METHOD_ENTRYPOINTS];
int instMethodEntryPointsOffset = GetOffset(instMethodEntryPointSection.RelativeVirtualAddress);
NativeParser parser = new NativeParser(Image, (uint)instMethodEntryPointsOffset);
NativeHashtable instMethodEntryPoints = new NativeHashtable(Image, parser, (uint)(instMethodEntryPointsOffset + instMethodEntryPointSection.Size));
NativeHashtable.AllEntriesEnumerator allEntriesEnum = instMethodEntryPoints.EnumerateAllEntries();
NativeParser curParser = allEntriesEnum.GetNext();
while (!curParser.IsNull())
{
uint methodFlags = curParser.GetCompressedData();
uint rid = curParser.GetCompressedData();
if ((methodFlags & (byte)R2RMethod.EncodeMethodSigFlags.ENCODE_METHOD_SIG_MethodInstantiation) != 0)
{
uint nArgs = curParser.GetCompressedData();
R2RMethod.GenericElementTypes[] args = new R2RMethod.GenericElementTypes[nArgs];
uint[] tokens = new uint[nArgs];
for (int i = 0; i < nArgs; i++)
{
args[i] = (R2RMethod.GenericElementTypes)curParser.GetByte();
if (args[i] == R2RMethod.GenericElementTypes.ValueType)
{
tokens[i] = curParser.GetCompressedData();
tokens[i] = (tokens[i] >> 2);
}
}
int runtimeFunctionId;
FixupCell[] fixups;
GetRuntimeFunctionIndexFromOffset((int)curParser.Offset, out runtimeFunctionId, out fixups);
R2RMethod method = new R2RMethod(R2RMethods.Count, MetadataReader, rid, runtimeFunctionId, args, tokens, fixups);
if (method.EntryPointRuntimeFunctionId >= 0 && method.EntryPointRuntimeFunctionId < isEntryPoint.Length)
{
isEntryPoint[method.EntryPointRuntimeFunctionId] = true;
}
R2RMethods.Add(method);
}
curParser = allEntriesEnum.GetNext();
}
}
/// <summary>
/// Initialize non-generic R2RMethods with method signatures from MethodDefHandle, and runtime function indices from MethodDefEntryPoints
/// </summary>
private void ParseMethodDefEntrypoints(bool[] isEntryPoint)
{
int methodDefEntryPointsRVA = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_METHODDEF_ENTRYPOINTS].RelativeVirtualAddress;
int methodDefEntryPointsOffset = GetOffset(methodDefEntryPointsRVA);
NativeArray methodEntryPoints = new NativeArray(Image, (uint)methodDefEntryPointsOffset);
uint nMethodEntryPoints = methodEntryPoints.GetCount();
for (uint rid = 1; rid <= nMethodEntryPoints; rid++)
{
int offset = 0;
if (methodEntryPoints.TryGetAt(Image, rid - 1, ref offset))
{
R2RMethod method = new R2RMethod(_mdReader, rid, GetEntryPointIdFromOffset(offset), null, null);
if (method.EntryPointRuntimeFunctionId < 0 || method.EntryPointRuntimeFunctionId >= isEntryPoint.Length)
{
throw new BadImageFormatException("EntryPointRuntimeFunctionId out of bounds");
}
isEntryPoint[method.EntryPointRuntimeFunctionId] = true;
R2RMethods.Add(method);
}
}
}
/// <summary>
/// Initialize generic method instances with argument types and runtime function indices from InstanceMethodEntrypoints
/// </summary>
private void ParseInstanceMethodEntrypoints(bool[] isEntryPoint)
{
if (!R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_INSTANCE_METHOD_ENTRYPOINTS))
{
return;
}
R2RSection instMethodEntryPointSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_INSTANCE_METHOD_ENTRYPOINTS];
int instMethodEntryPointsOffset = GetOffset(instMethodEntryPointSection.RelativeVirtualAddress);
NativeParser parser = new NativeParser(Image, (uint)instMethodEntryPointsOffset);
NativeHashtable instMethodEntryPoints = new NativeHashtable(Image, parser, (uint)(instMethodEntryPointsOffset + instMethodEntryPointSection.Size));
NativeHashtable.AllEntriesEnumerator allEntriesEnum = instMethodEntryPoints.EnumerateAllEntries();
NativeParser curParser = allEntriesEnum.GetNext();
while (!curParser.IsNull())
{
SignatureDecoder decoder = new SignatureDecoder(_assemblyResolver, this, (int)curParser.Offset);
MetadataReader mdReader = MetadataReader;
string owningType = null;
uint methodFlags = decoder.ReadUInt();
if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType) != 0)
{
mdReader = decoder.GetMetadataReaderFromModuleOverride();
owningType = decoder.ReadTypeSignatureNoEmit();
}
if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_SlotInsteadOfToken) != 0)
{
throw new NotImplementedException();
}
EntityHandle methodHandle;
int rid = (int)decoder.ReadUInt();
if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MemberRefToken) != 0)
{
methodHandle = MetadataTokens.MemberReferenceHandle(rid);
}
else
{
methodHandle = MetadataTokens.MethodDefinitionHandle(rid);
}
string[] methodTypeArgs = null;
if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MethodInstantiation) != 0)
{
uint typeArgCount = decoder.ReadUInt();
methodTypeArgs = new string[typeArgCount];
for (int typeArgIndex = 0; typeArgIndex < typeArgCount; typeArgIndex++)
{
methodTypeArgs[typeArgIndex] = decoder.ReadTypeSignatureNoEmit();
}
}
string constrainedType = null;
if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_Constrained) != 0)
{
constrainedType = decoder.ReadTypeSignatureNoEmit();
}
int runtimeFunctionId;
FixupCell[] fixups;
GetRuntimeFunctionIndexFromOffset((int)decoder.Offset, out runtimeFunctionId, out fixups);
R2RMethod method = new R2RMethod(
R2RMethods.Count,
mdReader == null ? MetadataReader : mdReader,
methodHandle,
runtimeFunctionId,
owningType,
constrainedType,
methodTypeArgs,
fixups);
if (method.EntryPointRuntimeFunctionId >= 0 && method.EntryPointRuntimeFunctionId < isEntryPoint.Length)
{
isEntryPoint[method.EntryPointRuntimeFunctionId] = true;
}
R2RMethods.Add(method);
InstanceMethods.Add(new InstanceMethod(curParser.LowHashcode, method));
curParser = allEntriesEnum.GetNext();
}
}
