OcPeCoffExtLib: Import initial files for boot.efi fixup from BasePeCo…

…ffLib2

Library/OcPeCoffExtLib/BasePeCoffLib2Internals.h

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+/** @file
+  Provides shared private definitions across this library.
+
+  Copyright (c) 2020 - 2021, Marvin Häuser. All rights reserved.<BR>
+  Copyright (c) 2020, Vitaly Cheptsov. All rights reserved.<BR>
+  Copyright (c) 2020, ISP RAS. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-3-Clause
+**/
+
+#ifndef BASE_PE_COFF_LIB2_INTERNALS_H_
+#define BASE_PE_COFF_LIB2_INTERNALS_H_
+
+//
+// PcdImageLoaderRelocTypePolicy bits.
+//
+
+///
+/// If set, ARM Thumb Image relocations are supported.
+///
+#define PCD_RELOC_TYPE_POLICY_ARM  BIT0
+
+///
+/// Denotes the alignment requirement for Image certificate sizes.
+///
+#define IMAGE_CERTIFICATE_ALIGN  8U
+
+//
+// The PE/COFF specification guarantees an 8 Byte alignment for certificate
+// sizes. This is larger than the alignment requirement for WIN_CERTIFICATE
+// implied by the UEFI ABI. ASSERT this holds.
+//
+STATIC_ASSERT (
+  ALIGNOF (WIN_CERTIFICATE) <= IMAGE_CERTIFICATE_ALIGN,
+  "The PE/COFF specification guarantee does not suffice."
+  );
+
+//
+// The 4 Byte alignment guaranteed by the PE/COFF specification has been
+// replaced with ALIGNOF (EFI_IMAGE_BASE_RELOCATION_BLOCK) for proof simplicity.
+// This obviously was the original intention of the specification. ASSERT in
+// case the equality is not given.
+//
+STATIC_ASSERT (
+  sizeof (UINT32) == ALIGNOF (EFI_IMAGE_BASE_RELOCATION_BLOCK),
+  "The current model violates the PE/COFF specification"
+  );
+
+// FIXME:
+RETURN_STATUS
+PeCoffLoadImageInplaceNoBase (
+  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT  *Context
+  );
+
+#endif // BASE_PE_COFF_LIB_INTERNALS_H_