/// <summary>
/// Initializes the fields of the R2RHeader and R2RMethods
/// </summary>
/// <param name="filename">PE image</param>
/// <exception cref="BadImageFormatException">The Cor header flag must be ILLibrary</exception>
public unsafe R2RReader(string filename)
{
Filename = filename;
Image = File.ReadAllBytes(filename);
fixed(byte *p = Image)
{
IntPtr ptr = (IntPtr)p;
PEReader = new PEReader(p, Image.Length);
IsR2R = ((PEReader.PEHeaders.CorHeader.Flags & CorFlags.ILLibrary) != 0);
if (!IsR2R)
{
throw new BadImageFormatException("The file is not a ReadyToRun image");
}
uint machine = (uint)PEReader.PEHeaders.CoffHeader.Machine;
OS = OperatingSystem.Unknown;
foreach (OperatingSystem os in Enum.GetValues(typeof(OperatingSystem)))
{
Machine = (Machine)(machine ^ (uint)os);
if (Enum.IsDefined(typeof(Machine), Machine))
{
OS = os;
break;
}
}
if (OS == OperatingSystem.Unknown)
{
throw new BadImageFormatException($"Invalid Machine: {machine}");
}
ImageBase = PEReader.PEHeaders.PEHeader.ImageBase;
// initialize R2RHeader
DirectoryEntry r2rHeaderDirectory = PEReader.PEHeaders.CorHeader.ManagedNativeHeaderDirectory;
int r2rHeaderOffset = GetOffset(r2rHeaderDirectory.RelativeVirtualAddress);
R2RHeader = new R2RHeader(Image, r2rHeaderDirectory.RelativeVirtualAddress, r2rHeaderOffset);
if (r2rHeaderDirectory.Size != R2RHeader.Size)
{
throw new BadImageFormatException("The calculated size of the R2RHeader doesn't match the size saved in the ManagedNativeHeaderDirectory");
}
if (PEReader.HasMetadata)
{
MetadataReader = PEReader.GetMetadataReader();
ParseDebugInfo();
if (R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_EXCEPTION_INFO))
{
R2RSection exceptionInfoSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_EXCEPTION_INFO];
EHLookupTable = new EHLookupTable(Image, GetOffset(exceptionInfoSection.RelativeVirtualAddress), exceptionInfoSection.Size);
}
R2RMethods = new List <R2RMethod>();
if (R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_RUNTIME_FUNCTIONS))
{
int runtimeFunctionSize = CalculateRuntimeFunctionSize();
R2RSection runtimeFunctionSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_RUNTIME_FUNCTIONS];
uint nRuntimeFunctions = (uint)(runtimeFunctionSection.Size / runtimeFunctionSize);
int runtimeFunctionOffset = GetOffset(runtimeFunctionSection.RelativeVirtualAddress);
bool[] isEntryPoint = new bool[nRuntimeFunctions];
// initialize R2RMethods
ParseMethodDefEntrypoints(isEntryPoint);
ParseInstanceMethodEntrypoints(isEntryPoint);
ParseRuntimeFunctions(isEntryPoint, runtimeFunctionOffset, runtimeFunctionSize);
}
AvailableTypes = new List <string>();
ParseAvailableTypes();
CompilerIdentifier = ParseCompilerIdentifier();
ImportSections = new List <R2RImportSection>();
ImportCellNames = new Dictionary <int, string>();
ParseImportSections();
}
}
}
/// <summary>
/// Initializes the fields of the R2RHeader and R2RMethods
/// </summary>
/// <param name="filename">PE image</param>
/// <exception cref="BadImageFormatException">The Cor header flag must be ILLibrary</exception>
public unsafe R2RReader(DumpOptions options, string filename)
: base(options, filename, new List <string>())
{
IsR2R = ((PEReader.PEHeaders.CorHeader.Flags & CorFlags.ILLibrary) != 0);
if (!IsR2R)
{
throw new BadImageFormatException("The file is not a ReadyToRun image");
}
uint machine = (uint)PEReader.PEHeaders.CoffHeader.Machine;
OS = OperatingSystem.Unknown;
foreach (OperatingSystem os in Enum.GetValues(typeof(OperatingSystem)))
{
Machine = (Machine)(machine ^ (uint)os);
if (Enum.IsDefined(typeof(Machine), Machine))
{
OS = os;
break;
}
}
if (OS == OperatingSystem.Unknown)
{
throw new BadImageFormatException($"Invalid Machine: {machine}");
}
switch (Machine)
{
case Machine.I386:
Architecture = Architecture.X86;
PointerSize = 4;
break;
case Machine.Amd64:
Architecture = Architecture.X64;
PointerSize = 8;
break;
case Machine.Arm:
case Machine.Thumb:
case Machine.ArmThumb2:
Architecture = Architecture.Arm;
PointerSize = 4;
break;
case Machine.Arm64:
Architecture = Architecture.Arm64;
PointerSize = 8;
break;
default:
throw new NotImplementedException(Machine.ToString());
}
ImageBase = PEReader.PEHeaders.PEHeader.ImageBase;
// initialize R2RHeader
DirectoryEntry r2rHeaderDirectory = PEReader.PEHeaders.CorHeader.ManagedNativeHeaderDirectory;
int r2rHeaderOffset = GetOffset(r2rHeaderDirectory.RelativeVirtualAddress);
R2RHeader = new R2RHeader(Image, r2rHeaderDirectory.RelativeVirtualAddress, r2rHeaderOffset);
if (r2rHeaderDirectory.Size != R2RHeader.Size)
{
throw new BadImageFormatException("The calculated size of the R2RHeader doesn't match the size saved in the ManagedNativeHeaderDirectory");
}
ParseDebugInfo();
if (R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_MANIFEST_METADATA))
{
R2RSection manifestMetadata = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_MANIFEST_METADATA];
fixed(byte *image = Image)
{
MetadataReader manifestReader = new MetadataReader(image + GetOffset(manifestMetadata.RelativeVirtualAddress), manifestMetadata.Size);
int assemblyRefCount = manifestReader.GetTableRowCount(TableIndex.AssemblyRef);
for (int assemblyRefIndex = 1; assemblyRefIndex <= assemblyRefCount; assemblyRefIndex++)
{
AssemblyReferenceHandle asmRefHandle = MetadataTokens.AssemblyReferenceHandle(assemblyRefIndex);
AssemblyReference asmRef = manifestReader.GetAssemblyReference(asmRefHandle);
string asmRefName = manifestReader.GetString(asmRef.Name);
ManifestReferenceAssemblies.Add(asmRefName);
}
}
}
if (R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_EXCEPTION_INFO))
{
R2RSection exceptionInfoSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_EXCEPTION_INFO];
EHLookupTable = new EHLookupTable(Image, GetOffset(exceptionInfoSection.RelativeVirtualAddress), exceptionInfoSection.Size);
}
ImportSections = new List <R2RImportSection>();
ImportCellNames = new Dictionary <int, string>();
ParseImportSections();
R2RMethods = new List <R2RMethod>();
InstanceMethods = new List <InstanceMethod>();
if (R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_RUNTIME_FUNCTIONS))
{
int runtimeFunctionSize = CalculateRuntimeFunctionSize();
R2RSection runtimeFunctionSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_RUNTIME_FUNCTIONS];
uint nRuntimeFunctions = (uint)(runtimeFunctionSection.Size / runtimeFunctionSize);
int runtimeFunctionOffset = GetOffset(runtimeFunctionSection.RelativeVirtualAddress);
bool[] isEntryPoint = new bool[nRuntimeFunctions];
// initialize R2RMethods
ParseMethodDefEntrypoints(isEntryPoint);
ParseInstanceMethodEntrypoints(isEntryPoint);
ParseRuntimeFunctions(isEntryPoint, runtimeFunctionOffset, runtimeFunctionSize);
}
AvailableTypes = new List <string>();
ParseAvailableTypes();
CompilerIdentifier = ParseCompilerIdentifier();
}
