internal static ImmutableArray <MetadataBlock> GetMetadataBlocks(GetMetadataBytesPtrFunction getMetaDataBytesPtrFunction, ImmutableArray <AssemblyIdentity> missingAssemblyIdentities)
{
ArrayBuilder <MetadataBlock> builder = null;
foreach (AssemblyIdentity missingAssemblyIdentity in missingAssemblyIdentities)
{
MetadataBlock block;
try
{
uint size;
IntPtr ptr;
ptr = getMetaDataBytesPtrFunction(missingAssemblyIdentity, out size);
Debug.Assert(size > 0);
block = GetMetadataBlock(ptr, size);
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e, missingAssemblyIdentity.GetDisplayName()))
{
continue;
}
if (builder == null)
{
builder = ArrayBuilder <MetadataBlock> .GetInstance();
}
builder.Add(block);
}
return(builder == null ? ImmutableArray <MetadataBlock> .Empty : builder.ToImmutableAndFree());
}
internal static ImmutableArray <AssemblyReaders> MakeAssemblyReaders(this DkmClrInstructionAddress instructionAddress)
{
var builder = ArrayBuilder <AssemblyReaders> .GetInstance();
foreach (DkmClrModuleInstance module in instructionAddress.RuntimeInstance.GetModulesInAppDomain(instructionAddress.ModuleInstance.AppDomain))
{
var symReader = module.GetSymReader();
if (symReader == null)
{
continue;
}
MetadataReader reader;
unsafe
{
try
{
uint size;
IntPtr ptr;
ptr = module.GetMetaDataBytesPtr(out size);
Debug.Assert(size > 0);
reader = new MetadataReader((byte *)ptr, (int)size);
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e, module.FullName))
{
continue;
}
}
builder.Add(new AssemblyReaders(reader, symReader));
}
return(builder.ToImmutableAndFree());
}
internal unsafe static ImmutableArray <MetadataBlock> GetMetadataBlocks(this DkmClrRuntimeInstance runtime, DkmClrAppDomain appDomain)
{
var builder = ArrayBuilder <MetadataBlock> .GetInstance();
IntPtr ptr;
uint size;
foreach (DkmClrModuleInstance module in runtime.GetModulesInAppDomain(appDomain))
{
MetadataBlock block;
try
{
ptr = module.GetMetaDataBytesPtr(out size);
Debug.Assert(size > 0);
block = GetMetadataBlock(ptr, size);
}
catch (NotImplementedException e) when(module is DkmClrNcModuleInstance)
{
// DkmClrNcModuleInstance.GetMetaDataBytesPtr not implemented in Dev14.
throw new NotImplementedMetadataException(e);
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e, module.FullName))
{
continue;
}
Debug.Assert(block.ModuleVersionId == module.Mvid);
builder.Add(block);
}
// Include "intrinsic method" assembly.
ptr = runtime.GetIntrinsicAssemblyMetaDataBytesPtr(out size);
builder.Add(GetMetadataBlock(ptr, size));
return(builder.ToImmutableAndFree());
}
/// <summary>
/// Attempt to construct a <see cref="MetadataReader"/> instance for this module.
/// </summary>
/// <returns>Returns 'false' for modules with "bad" or missing metadata.</returns>
private unsafe static bool TryGetMetadataReader(this DkmClrModuleInstance module, out IntPtr ptr, out int size, out MetadataReader reader)
{
try
{
uint uSize;
ptr = module.GetMetaDataBytesPtr(out uSize);
size = (int)uSize;
reader = new MetadataReader((byte *)ptr, size);
return(true);
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e, module.FullName))
{
ptr = IntPtr.Zero;
size = 0;
reader = null;
return(false);
}
}
internal sealed override MetadataReader GetModuleMetadata(DkmClrModuleInstance module)
{
uint length;
IntPtr ptr;
try
{
ptr = module.GetMetaDataBytesPtr(out length);
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e, module.FullName))
{
return(null);
}
Debug.Assert(length > 0);
unsafe
{
return(new MetadataReader((byte *)ptr, (int)length));
}
}
/// <summary>
/// Attempt to construct a <see cref="MetadataReader"/> instance for this module.
/// </summary>
/// <returns>Returns 'false' for modules with "bad" or missing metadata.</returns>
private unsafe static bool TryGetMetadataReader(GetMetadataBytesPtrFunction getMetaDataBytesPtrFunction, AssemblyIdentity assemblyIdentity, out IntPtr ptr, out int size, out MetadataReader reader)
{
var assemblyName = assemblyIdentity.GetDisplayName();
try
{
uint uSize;
ptr = getMetaDataBytesPtrFunction(assemblyIdentity, out uSize);
size = (int)uSize;
reader = new MetadataReader((byte *)ptr, size);
return(true);
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e, assemblyName))
{
ptr = IntPtr.Zero;
size = 0;
reader = null;
return(false);
}
}
private static PortableExecutableReference MakeAssemblyMetadata(ModuleMetadata metadata, Dictionary <string, ModuleMetadata> modulesByName)
{
Debug.Assert(metadata.Module.IsManifestModule);
var builder = ArrayBuilder <ModuleMetadata> .GetInstance();
builder.Add(metadata);
// Include any associated netmodules from the manifest.
if (modulesByName != null)
{
try
{
var reader = metadata.MetadataReader;
foreach (var handle in reader.AssemblyFiles)
{
var assemblyFile = reader.GetAssemblyFile(handle);
var name = reader.GetString(assemblyFile.Name);
// Find the assembly file in the set of netmodules with that name.
// The file may be missing if the file is not a module (say a resource)
// or if the module has not been loaded yet. The value will be null
// if the name was ambiguous.
ModuleMetadata module;
if (modulesByName.TryGetValue(name, out module) && (module != null))
{
builder.Add(module);
}
}
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e))
{
// Ignore modules with "bad" or missing metadata.
}
}
var assemblyMetadata = AssemblyMetadata.Create(builder.ToImmutableAndFree());
return(assemblyMetadata.GetReference(embedInteropTypes: false, display: metadata.Name));
}
/// <summary>
/// Group module metadata into assemblies.
/// </summary>
internal static ImmutableArray <MetadataReference> MakeAssemblyReferences(this ImmutableArray <MetadataBlock> metadataBlocks)
{
// Get metadata for each module.
var metadataBuilder = ArrayBuilder <ModuleMetadata> .GetInstance();
// Win8 applications contain a reference to Windows.winmd version >= 1.3
// and perhaps multiple application winmds. At runtime, Windows.winmd
// is replaced by multiple Windows.*.winmd version >= 1.3. In the EE, we
// need to map compile-time assembly references to the runtime assemblies
// supplied by the debugger. To do so, we “merge” all winmds named
// Windows.*.winmd into a single fake Windows.winmd at runtime.
// All other (application) winmds are left as is.
var runtimeWinMdBuilder = ArrayBuilder <ModuleMetadata> .GetInstance();
foreach (var block in metadataBlocks)
{
var metadata = ModuleMetadata.CreateFromMetadata(block.Pointer, block.Size, includeEmbeddedInteropTypes: true);
try
{
if (IsWindowsComponent(metadata.MetadataReader, metadata.Name))
{
runtimeWinMdBuilder.Add(metadata);
}
else
{
metadataBuilder.Add(metadata);
}
}
catch (Exception e) when(MetadataUtilities.IsBadOrMissingMetadataException(e))
{
// Ignore modules with "bad" or missing metadata.
}
}
// Index non-primary netmodules by name. Multiple modules may
// have the same name but we do not have a way to differentiate
// netmodules other than by name so if there are duplicates, the
// dictionary value is set to null and references are dropped when
// generating the containing assembly metadata.
Dictionary <string, ModuleMetadata> modulesByName = null;
foreach (var metadata in metadataBuilder)
{
if (IsPrimaryModule(metadata))
{
// Primary module. No need to add to dictionary.
continue;
}
if (modulesByName == null)
{
modulesByName = new Dictionary <string, ModuleMetadata>(); // Requires case-insensitive comparison?
}
var name = metadata.Name;
modulesByName[name] = modulesByName.ContainsKey(name) ? null : metadata;
}
// Build assembly references from modules in primary module
// manifests. There will be duplicate assemblies if the process has
// multiple app domains and those duplicates need to be dropped.
var referencesBuilder = ArrayBuilder <MetadataReference> .GetInstance();
var moduleIds = PooledHashSet <Guid> .GetInstance();
foreach (var metadata in metadataBuilder)
{
if (!IsPrimaryModule(metadata))
{
continue;
}
var mvid = metadata.GetModuleVersionId();
if (moduleIds.Contains(mvid))
{
continue;
}
moduleIds.Add(mvid);
referencesBuilder.Add(MakeAssemblyMetadata(metadata, modulesByName));
}
moduleIds.Free();
// Any runtime winmd modules were separated out initially. Now add
// those to a placeholder for the missing compile time module since
// each of the runtime winmds refer to the compile time module.
if (runtimeWinMdBuilder.Any())
{
referencesBuilder.Add(MakeCompileTimeWinMdAssemblyMetadata(runtimeWinMdBuilder));
}
runtimeWinMdBuilder.Free();
metadataBuilder.Free();
return(referencesBuilder.ToImmutableAndFree());
}