Rewrite core of the XTLDR boot loader

Reviewed-on: xt-sys/exectos#7
Reviewed-by: Piotr Likoski <likoski@noreply.codingworkshop.git>
Co-authored-by: Rafal Kupiec <belliash@codingworkshop.eu.org>
Co-committed-by: Rafal Kupiec <belliash@codingworkshop.eu.org>

xtldr/modules/pecoff_o/includes/pecoff.h

@@ -0,0 +1,58 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/pecoff_o/includes/pecoff.h
+ * DESCRIPTION:     PE/COFF executable file format support header
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_MODULES_PECOFF_O_H
+#define __XTLDR_MODULES_PECOFF_O_H
+
+#include <xtblapi.h>
+
+
+/* PE/COFF image protocol related routines forward references */
+XTCDECL
+EFI_STATUS
+PeGetEntryPoint(IN PVOID ImagePointer,
+                OUT PVOID *EntryPoint);
+
+XTCDECL
+EFI_STATUS
+PeGetMachineType(IN PVOID ImagePointer,
+                 OUT PUSHORT MachineType);
+
+XTCDECL
+EFI_STATUS
+PeGetSubSystem(IN PVOID ImagePointer,
+               OUT PUSHORT SubSystem);
+
+XTCDECL
+EFI_STATUS
+PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
+            IN LOADER_MEMORY_TYPE MemoryType,
+            IN PVOID VirtualAddress,
+            OUT PVOID *ImagePointer);
+
+XTCDECL
+EFI_STATUS
+PeRelocateImage(IN PVOID ImagePointer,
+                IN EFI_VIRTUAL_ADDRESS Address);
+
+XTCDECL
+EFI_STATUS
+PepRelocateLoadedImage(IN PPECOFF_IMAGE_CONTEXT Image);
+
+XTCDECL
+EFI_STATUS
+PepValidateImageHeaders(IN PPECOFF_IMAGE_DOS_HEADER DosHeader,
+                        IN PPECOFF_IMAGE_PE_HEADER PeHeader,
+                        IN SIZE_T FileSize);
+
+XTCDECL
+EFI_STATUS
+BlXtLdrModuleMain(IN EFI_HANDLE ImageHandle,
+                  IN PEFI_SYSTEM_TABLE SystemTable);
+
+#endif /* __XTLDR_MODULES_PECOFF_O_H */