List of files making an internal fcall/qcall in CoreCLR

coreclr_internal_calls.txt

// From https://github.com/dotnet/coreclr/tree/edc1320180a3d68a16855da8da82f01871bf3a1d/src/mscorlib
// 109 Files (over a total of 974 cs files) in System.Private.CoreLib.dll (ex mscorlib.dll) 
// are making an internal fcall/qcall to a function inside coreclr.dll
// In total 967 internal fcall/qcall functions are imported

Internal\Runtime\Augments\RuntimeThread.cs
Microsoft\Win32\OAVariantLib.cs
System\AppDomain.cs
System\ArgIterator.cs
System\Array.cs
System\BCLDebug.cs
System\Buffer.cs
System\CfgParser.cs
System\CLRConfig.cs
System\Currency.cs
System\DateTime.cs
System\Decimal.cs
System\DefaultBinder.cs
System\Delegate.cs
System\Diagnostics\Assert.cs
System\Diagnostics\Debugger.cs
System\Diagnostics\log.cs
System\Diagnostics\Stacktrace.cs
System\Enum.cs
System\Environment.cs
System\Exception.cs
System\GC.cs
System\Globalization\CalendarData.cs
System\Globalization\CultureData.cs
System\Globalization\CultureInfo.cs
System\Globalization\EncodingTable.cs
System\Globalization\TextInfo.cs
System\IO\Stream.cs
System\Math.cs
System\MathF.cs
System\mda.cs
System\MissingMemberException.cs
System\Number.cs
System\Object.cs
System\ParseNumbers.cs
System\Reflection\Assembly.cs
System\Reflection\AssemblyName.cs
System\Reflection\CustomAttribute.cs
System\Reflection\Emit\AssemblyBuilder.cs
System\Reflection\Emit\ISymWrapperCore.cs
System\Reflection\Emit\ModuleBuilder.cs
System\Reflection\FieldInfo.cs
System\Reflection\MdImport.cs
System\Reflection\Module.cs
System\RtType.cs
System\Runtime\CompilerServices\ConditionalWeakTable.cs
System\Runtime\CompilerServices\jithelpers.cs
System\Runtime\CompilerServices\MethodImplAttribute.cs
System\Runtime\CompilerServices\RuntimeHelpers.cs
System\Runtime\InteropServices\ArrayWithOffset.cs
System\Runtime\InteropServices\CriticalHandle.cs
System\Runtime\InteropServices\ExtensibleClassFactory.cs
System\Runtime\InteropServices\GcHandle.cs
System\Runtime\InteropServices\Marshal.cs
System\Runtime\InteropServices\RegistrationServices.cs
System\Runtime\InteropServices\RuntimeEnvironment.cs
System\Runtime\InteropServices\SafeBuffer.cs
System\Runtime\InteropServices\SafeHandle.cs
System\Runtime\InteropServices\WindowsRuntime\RuntimeClass.cs
System\Runtime\Loader\AssemblyLoadContext.cs
System\Runtime\MemoryFailPoint.cs
System\Runtime\Serialization\FormatterServices.cs
System\Runtime\Versioning\CompatibilitySwitch.cs
System\RuntimeHandles.cs
System\Security\CodeAccessSecurityEngine.cs
System\Security\FrameSecurityDescriptor.cs
System\Security\SecurityContext.cs
System\Security\SecurityManager.cs
System\Security\SecurityRuntime.cs
System\String.Comparison.cs
System\String.cs
System\String.Manipulation.cs
System\String.Searching.cs
System\StubHelpers.cs
System\Text\Normalization.Windows.cs
System\Text\StringBuilder.cs
System\Threading\Interlocked.cs
System\Threading\Monitor.cs
System\Threading\Overlapped.cs
System\Threading\ReaderWriterLock.cs
System\Threading\SynchronizationContext.cs
System\Threading\Tasks\IAsyncCausalityTracerStatics.cs
System\Threading\Thread.cs
System\Threading\ThreadPool.cs
System\Threading\WaitHandle.cs
System\Type.cs
System\TypedReference.cs
System\ValueType.cs
System\Variant.cs
System\WeakReference.cs
System\WeakReferenceOfT.cs
System\AppDomainManager.cs
System\Globalization\CompareInfo.cs
System\IO\FileLoadException.cs
System\Reflection\Emit\AQNBuilder.cs
System\Reflection\Emit\TypeBuilder.cs
System\Reflection\LoaderAllocator.cs
System\Reflection\Metadata\AssemblyExtensions.cs
System\Resources\ManifestBasedResourceGroveler.cs
System\Runtime\InteropServices\WindowsRuntime\WindowsRuntimeBufferHelper.cs
System\Runtime\InteropServices\WindowsRuntime\WindowsRuntimeMetadata.cs
System\Runtime\ProfileOptimization.cs
System\Security\Permissions\FileIOPermission.cs
System\Security\Util\Config.cs
System\Security\Util\StringExpressionSet.cs
System\Security\Util\URLString.cs
System\Threading\Timer.cs
System\TypeLoadException.cs
System\TypeNameParser.cs