public R2RMethod(byte[] image, MetadataReader mdReader, NativeArray methodEntryPoints, uint offset, uint rid)
{
// get the id of the entry point runtime function from the MethodEntryPoints NativeArray
Token = _mdtMethodDef | rid;
uint id = 0; // the RUNTIME_FUNCTIONS index
offset = methodEntryPoints.DecodeUnsigned(image, offset, ref id);
if ((id & 1) != 0)
{
if ((id & 2) != 0)
{
uint val = 0;
methodEntryPoints.DecodeUnsigned(image, offset, ref val);
offset -= val;
}
// TODO: Dump fixups
id >>= 2;
}
else
{
id >>= 1;
}
EntryPointRuntimeFunctionId = id;
NativeCode = new List <RuntimeFunction>();
// get the method signature from the MethodDefhandle
try
{
MethodDefinitionHandle methodDefHandle = MetadataTokens.MethodDefinitionHandle((int)rid);
var methodDef = mdReader.GetMethodDefinition(methodDefHandle);
BlobReader signatureReader = mdReader.GetBlobReader(methodDef.Signature);
SignatureHeader header = signatureReader.ReadSignatureHeader();
Name = mdReader.GetString(methodDef.Name);
int argCount = signatureReader.ReadCompressedInteger();
ReturnType = new SignatureType(ref signatureReader, ref mdReader);
ArgTypes = new SignatureType[argCount];
for (int i = 0; i < argCount; i++)
{
ArgTypes[i] = new SignatureType(ref signatureReader, ref mdReader);
}
}
catch (System.BadImageFormatException)
{
R2RDump.OutputWarning("The method with rowId " + rid + " doesn't have a corresponding MethodDefHandle");
}
}
/// <summary>
/// Initializes the fields of the R2RHeader
/// </summary>
/// <param name="image">PE image</param>
/// <param name="rva">Relative virtual address of the ReadyToRun header</param>
/// <param name="curOffset">Index in the image byte array to the start of the ReadyToRun header</param>
/// <exception cref="BadImageFormatException">The signature must be 0x00525452</exception>
public R2RHeader(byte[] image, int rva, int curOffset)
{
RelativeVirtualAddress = rva;
int startOffset = curOffset;
byte[] signature = new byte[sizeof(uint)];
Array.Copy(image, curOffset, signature, 0, sizeof(uint));
SignatureString = System.Text.Encoding.UTF8.GetString(signature);
Signature = NativeReader.ReadUInt32(image, ref curOffset);
if (Signature != READYTORUN_SIGNATURE)
{
throw new System.BadImageFormatException("Incorrect R2R header signature");
}
MajorVersion = NativeReader.ReadUInt16(image, ref curOffset);
MinorVersion = NativeReader.ReadUInt16(image, ref curOffset);
Flags = NativeReader.ReadUInt32(image, ref curOffset);
int nSections = NativeReader.ReadInt32(image, ref curOffset);
Sections = new Dictionary <R2RSection.SectionType, R2RSection>();
for (int i = 0; i < nSections; i++)
{
int type = NativeReader.ReadInt32(image, ref curOffset);
var sectionType = (R2RSection.SectionType)type;
if (!Enum.IsDefined(typeof(R2RSection.SectionType), type))
{
R2RDump.OutputWarning("Invalid ReadyToRun section type");
}
Sections[sectionType] = new R2RSection(sectionType,
NativeReader.ReadInt32(image, ref curOffset),
NativeReader.ReadInt32(image, ref curOffset));
}
Size = curOffset - startOffset;
}
