internal static ImmutableArray <MetadataBlock> GetMetadataBlocks(GetMetadataBytesPtrFunction getMetaDataBytesPtrFunction, ImmutableArray <AssemblyIdentity> missingAssemblyIdentities)
{
ArrayBuilder <MetadataBlock>?builder = null;
foreach (var 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(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
continue;
}
if (builder == null)
{
builder = ArrayBuilder <MetadataBlock> .GetInstance();
}
builder.Add(block);
}
return(builder == null ? ImmutableArray <MetadataBlock> .Empty : builder.ToImmutableAndFree());
}
internal static bool TryGetModuleInfo(this DkmClrModuleInstance module, [NotNullWhen(true)] out EnC.DebuggeeModuleInfo?info)
{
Debug.Assert(Thread.CurrentThread.GetApartmentState() == ApartmentState.MTA, "SymReader requires MTA");
IntPtr metadataPtr;
uint metadataSize;
try
{
metadataPtr = module.GetBaselineMetaDataBytesPtr(out metadataSize);
}
catch (Exception e) when(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
info = null;
return(false);
}
var symReader = module.GetSymUnmanagedReader() as ISymUnmanagedReader5;
if (symReader == null)
{
info = null;
return(false);
}
var metadata = ModuleMetadata.CreateFromMetadata(metadataPtr, (int)metadataSize);
info = new EnC.DebuggeeModuleInfo(metadata, symReader);
return(true);
}
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(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
continue;
}
}
builder.Add(new AssemblyReaders(reader, symReader));
}
return(builder.ToImmutableAndFree());
}
internal static ImmutableArray <MetadataBlock> GetMetadataBlocks(
this DkmClrRuntimeInstance runtime,
DkmClrAppDomain appDomain,
ImmutableArray <MetadataBlock> previousMetadataBlocks)
{
// Add a dummy data item to the appdomain to add it to the disposal queue when the debugged process is shutting down.
// This should prevent from attempts to use the Metadata pointer for dead debugged processes.
if (appDomain.GetDataItem <AppDomainLifetimeDataItem>() == null)
{
appDomain.SetDataItem(DkmDataCreationDisposition.CreateNew, new AppDomainLifetimeDataItem());
}
var builder = ArrayBuilder <MetadataBlock> .GetInstance();
IntPtr ptr;
uint size;
int index = 0;
foreach (DkmClrModuleInstance module in runtime.GetModulesInAppDomain(appDomain))
{
try
{
ptr = module.GetMetaDataBytesPtr(out size);
Debug.Assert(size > 0);
}
catch (NotImplementedException e) when(module is DkmClrNcModuleInstance)
{
// DkmClrNcModuleInstance.GetMetaDataBytesPtr not implemented in Dev14.
throw new NotImplementedMetadataException(e);
}
catch (Exception e) when(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
continue;
}
if (!TryGetMetadataBlock(previousMetadataBlocks, index, ptr, size, out var block))
{
// ignore modules with bad metadata headers
continue;
}
Debug.Assert(block.ModuleVersionId == module.Mvid);
builder.Add(block);
index++;
}
// Include "intrinsic method" assembly.
ptr = runtime.GetIntrinsicAssemblyMetaDataBytesPtr(out size);
if (!TryGetMetadataBlock(previousMetadataBlocks, index, ptr, size, out var intrinsicsBlock))
{
throw ExceptionUtilities.Unreachable;
}
builder.Add(intrinsicsBlock);
return(builder.ToImmutableAndFree());
}
internal sealed override unsafe bool TryGetMetadata(DkmClrModuleInstance module, out byte *pointer, out int length)
{
try
{
pointer = (byte *)module.GetMetaDataBytesPtr(out var size);
length = (int)size;
return(true);
}
catch (Exception e) when(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
pointer = null;
length = 0;
return(false);
}
}
private static ModuleMetadata GetBaselineModuleMetadata(DkmClrModuleInstance module)
{
IntPtr metadataPtr;
uint metadataSize;
try
{
metadataPtr = module.GetBaselineMetaDataBytesPtr(out metadataSize);
}
catch (Exception e) when(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
return(null);
}
return(ModuleMetadata.CreateFromMetadata(metadataPtr, (int)metadataSize));
}
internal sealed override MetadataReader GetModuleMetadata(DkmClrModuleInstance module)
{
uint length;
IntPtr ptr;
try
{
ptr = module.GetMetaDataBytesPtr(out length);
}
catch (Exception e) when(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
return(null);
}
Debug.Assert(length > 0);
unsafe
{
return(new MetadataReader((byte *)ptr, (int)length));
}
}
internal static ImmutableArray <MetadataBlock> GetMetadataBlocks(
this DkmClrRuntimeInstance runtime,
DkmClrAppDomain appDomain,
ImmutableArray <MetadataBlock> previousMetadataBlocks)
{
var builder = ArrayBuilder <MetadataBlock> .GetInstance();
IntPtr ptr;
uint size;
int index = 0;
foreach (DkmClrModuleInstance module in runtime.GetModulesInAppDomain(appDomain))
{
MetadataBlock block;
try
{
ptr = module.GetMetaDataBytesPtr(out size);
Debug.Assert(size > 0);
block = GetMetadataBlock(previousMetadataBlocks, index, ptr, size);
}
catch (NotImplementedException e) when(module is DkmClrNcModuleInstance)
{
// DkmClrNcModuleInstance.GetMetaDataBytesPtr not implemented in Dev14.
throw new NotImplementedMetadataException(e);
}
catch (Exception e) when(DkmExceptionUtilities.IsBadOrMissingMetadataException(e))
{
continue;
}
Debug.Assert(block.ModuleVersionId == module.Mvid);
builder.Add(block);
index++;
}
// Include "intrinsic method" assembly.
ptr = runtime.GetIntrinsicAssemblyMetaDataBytesPtr(out size);
builder.Add(GetMetadataBlock(previousMetadataBlocks, index, ptr, size));
return(builder.ToImmutableAndFree());
}
