/// <summary>
/// Resolve a MethodDesc to a callable method address and unboxing stub address.
/// </summary>
/// <param name="method">Native metadata method description object</param>
/// <param name="methodAddress">Resolved method address</param>
/// <param name="unboxingStubAddress">Resolved unboxing stub address</param>
/// <returns>true when the resolution succeeded, false when not</returns>
public static bool TryGetMethodAddressFromMethodDesc(
MethodDesc method,
out IntPtr methodAddress,
out IntPtr unboxingStubAddress,
out MethodAddressType foundAddressType)
{
methodAddress = IntPtr.Zero;
unboxingStubAddress = IntPtr.Zero;
foundAddressType = MethodAddressType.None;
#if SUPPORTS_R2R_LOADING
TryGetCodeTableEntry(method, out methodAddress, out unboxingStubAddress, out foundAddressType);
#endif
#if SUPPORT_DYNAMIC_CODE
if (foundAddressType == MethodAddressType.None)
{
MethodEntrypointStubs.TryGetMethodEntrypoint(method, out methodAddress, out unboxingStubAddress, out foundAddressType);
}
#endif
if (foundAddressType != MethodAddressType.None)
{
return(true);
}
// Otherwise try to find it via an invoke map
return(TryGetMethodAddressFromTypeSystemMethodViaInvokeMap(method, out methodAddress, out unboxingStubAddress, out foundAddressType));
}
/// <summary>
/// Resolve a MethodDesc to a callable method address and unboxing stub address by searching
/// by searching in the InvokeMaps. This function is a wrapper around TryGetMethodInvokeDataFromInvokeMap
/// that produces output in the format which matches the code table system.
/// </summary>
/// <param name="method">Native metadata method description object</param>
/// <param name="methodAddress">Resolved method address</param>
/// <param name="unboxingStubAddress">Resolved unboxing stub address</param>
/// <param name="foundAddressType">Output - The type of method address match found. A canonical address may require extra parameters to call.</param>
/// <returns>true when the resolution succeeded, false when not</returns>
private static bool TryGetMethodAddressFromTypeSystemMethodViaInvokeMap(
MethodDesc method,
out IntPtr methodAddress,
out IntPtr unboxingStubAddress,
out MethodAddressType foundAddressType)
{
methodAddress = IntPtr.Zero;
unboxingStubAddress = IntPtr.Zero;
foundAddressType = MethodAddressType.None;
#if SUPPORTS_NATIVE_METADATA_TYPE_LOADING
NativeFormatMethod nativeFormatMethod = method.GetTypicalMethodDefinition() as NativeFormatMethod;
if (nativeFormatMethod == null)
{
return(false);
}
MethodSignatureComparer methodSignatureComparer = new MethodSignatureComparer(
nativeFormatMethod.MetadataReader, nativeFormatMethod.Handle);
// Try to find a specific canonical match, or if that fails, a universal match
if (TryGetMethodInvokeDataFromInvokeMap(
nativeFormatMethod,
method,
ref methodSignatureComparer,
CanonicalFormKind.Specific,
out methodAddress,
out foundAddressType) ||
TryGetMethodInvokeDataFromInvokeMap(
nativeFormatMethod,
method,
ref methodSignatureComparer,
CanonicalFormKind.Universal,
out methodAddress,
out foundAddressType))
{
if (method.OwningType.IsValueType && !method.Signature.IsStatic)
{
// In this case the invoke map found an unboxing stub, and we should pull the method address out as well
unboxingStubAddress = methodAddress;
methodAddress = RuntimeAugments.GetCodeTarget(unboxingStubAddress);
if (!method.HasInstantiation && ((foundAddressType != MethodAddressType.Exact) || method.OwningType.IsCanonicalSubtype(CanonicalFormKind.Any)))
{
IntPtr underlyingTarget; // unboxing and instantiating stub handling
if (!TypeLoaderEnvironment.TryGetTargetOfUnboxingAndInstantiatingStub(methodAddress, out underlyingTarget))
{
Environment.FailFast("Expected this to be an unboxing and instantiating stub.");
}
methodAddress = underlyingTarget;
}
}
return(true);
}
#endif
return(false);
}
/// <summary>
/// Resolve a MethodDesc to a callable method address and unboxing stub address by searching
/// by searching in the InvokeMaps. This function is a wrapper around TryGetMethodInvokeDataFromInvokeMap
/// that produces output in the format which matches the code table system.
/// </summary>
/// <param name="method">Native metadata method description object</param>
/// <param name="methodAddress">Resolved method address</param>
/// <param name="unboxingStubAddress">Resolved unboxing stub address</param>
/// <returns>true when the resolution succeeded, false when not</returns>
private static bool TryGetMethodAddressFromTypeSystemMethodViaInvokeMap(
MethodDesc method,
out IntPtr methodAddress,
out IntPtr unboxingStubAddress,
out MethodAddressType foundAddressType)
{
methodAddress = IntPtr.Zero;
unboxingStubAddress = IntPtr.Zero;
foundAddressType = MethodAddressType.None;
#if SUPPORTS_NATIVE_METADATA_TYPE_LOADING
NativeFormatMethod nativeFormatMethod = method.GetTypicalMethodDefinition() as NativeFormatMethod;
if (nativeFormatMethod == null)
return false;
MethodSignatureComparer methodSignatureComparer = new MethodSignatureComparer(
nativeFormatMethod.MetadataReader, nativeFormatMethod.Handle);
// Try to find a specific canonical match, or if that fails, a universal match
if (TryGetMethodInvokeDataFromInvokeMap(
nativeFormatMethod,
method,
ref methodSignatureComparer,
CanonicalFormKind.Specific,
out methodAddress,
out foundAddressType) ||
TryGetMethodInvokeDataFromInvokeMap(
nativeFormatMethod,
method,
ref methodSignatureComparer,
CanonicalFormKind.Universal,
out methodAddress,
out foundAddressType))
{
if (method.OwningType.IsValueType && !method.Signature.IsStatic)
{
// In this case the invoke map found an unboxing stub, and we should pull the method address out as well
unboxingStubAddress = methodAddress;
methodAddress = RuntimeAugments.GetCodeTarget(unboxingStubAddress);
if (!method.HasInstantiation && ((foundAddressType != MethodAddressType.Exact) || method.OwningType.IsCanonicalSubtype(CanonicalFormKind.Any)))
{
IntPtr underlyingTarget; // unboxing and instantiating stub handling
if (!TypeLoaderEnvironment.TryGetTargetOfUnboxingAndInstantiatingStub(methodAddress, out underlyingTarget))
{
Environment.FailFast("Expected this to be an unboxing and instantiating stub.");
}
methodAddress = underlyingTarget;
}
}
return true;
}
#endif
return false;
}
/// <summary>
/// Resolve a MethodDesc to a callable method address and unboxing stub address.
/// </summary>
/// <param name="method">Native metadata method description object</param>
/// <param name="methodAddress">Resolved method address</param>
/// <param name="unboxingStubAddress">Resolved unboxing stub address</param>
/// <returns>true when the resolution succeeded, false when not</returns>
internal static bool TryGetMethodAddressFromMethodDesc(
MethodDesc method,
out IntPtr methodAddress,
out IntPtr unboxingStubAddress,
out MethodAddressType foundAddressType)
{
#if SUPPORTS_R2R_LOADING
// Try to find the method via a code table
if (TryGetCodeTableEntry(
method,
out methodAddress,
out unboxingStubAddress,
out foundAddressType))
{
return(true);
}
#endif
// Otherwise try to find it via an invoke map
return(TryGetMethodAddressFromTypeSystemMethodViaInvokeMap(method, out methodAddress, out unboxingStubAddress, out foundAddressType));
}
/// <summary>
/// Resolve a MethodDesc to a callable method address and unboxing stub address.
/// </summary>
/// <param name="method">Native metadata method description object</param>
/// <param name="methodAddress">Resolved method address</param>
/// <param name="unboxingStubAddress">Resolved unboxing stub address</param>
/// <returns>true when the resolution succeeded, false when not</returns>
internal static bool TryGetMethodAddressFromMethodDesc(
MethodDesc method,
out IntPtr methodAddress,
out IntPtr unboxingStubAddress,
out MethodAddressType foundAddressType)
{
#if SUPPORTS_R2R_LOADING
// Try to find the method via a code table
if (TryGetCodeTableEntry(
method,
out methodAddress,
out unboxingStubAddress,
out foundAddressType))
{
return true;
}
#endif
// Otherwise try to find it via an invoke map
return TryGetMethodAddressFromTypeSystemMethodViaInvokeMap(method, out methodAddress, out unboxingStubAddress, out foundAddressType);
}
