Add a temp BasePeCoffLib that deals with MOVT instruction. At this point we don't know how the PE/COFF spec will change, but we can merge the real change into the MdePkg when the PE/COFF spec is updated and remove this library. To be clear I made up the PE/COFF relocation extension for these relocations, but as long as the tools match it all works.... Mainly doing this to support gcc.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10762 6f19259b-4bc3-4df7-8a09-765794883524
2010-07-31 01:50:35 +00:00
parent dd85e4b531
commit 934309d58e
7 changed files with 2456 additions and 1 deletions
--- a/ArmPkg/Library/BasePeCoffLib/BasePeCoffLibInternals.h
+++ b/ArmPkg/Library/BasePeCoffLib/BasePeCoffLibInternals.h
@@ -0,0 +1,131 @@
+/** @file
+  Declaration of internal functions in PE/COFF Lib.
+
+  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __BASE_PECOFF_LIB_INTERNALS__
+#define __BASE_PECOFF_LIB_INTERNALS__
+
+#include <Base.h>
+#include <Library/PeCoffLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeCoffExtraActionLib.h>
+#include <IndustryStandard/PeImage.h>
+
+
+
+/**
+  Performs an Itanium-based specific relocation fixup and is a no-op on other
+  instruction sets.
+
+  @param  Reloc       Pointer to Pointer to the relocation record.
+  @param  Fixup       Pointer to the address to fix up.
+  @param  FixupData   Pointer to a buffer to log the fixups.
+  @param  Adjust      The offset to adjust the fixup.
+
+  @return Status code.
+
+**/
+RETURN_STATUS
+PeCoffLoaderRelocateImageEx (
+  IN UINT16      **Reloc,
+  IN OUT CHAR8   *Fixup,
+  IN OUT CHAR8   **FixupData,
+  IN UINT64      Adjust
+  );
+
+
+/**
+  Performs an Itanium-based specific re-relocation fixup and is a no-op on other
+  instruction sets. This is used to re-relocated the image into the EFI virtual
+  space for runtime calls.
+
+  @param  Reloc       Pointer to pointer to the relocation record.
+  @param  Fixup       Pointer to the address to fix up.
+  @param  FixupData   Pointer to a buffer to log the fixups.
+  @param  Adjust      The offset to adjust the fixup.
+
+  @return Status code.
+
+**/
+RETURN_STATUS
+PeHotRelocateImageEx (
+  IN UINT16      **Reloc,
+  IN OUT CHAR8   *Fixup,
+  IN OUT CHAR8   **FixupData,
+  IN UINT64      Adjust
+  );
+
+
+/**
+  Returns TRUE if the machine type of PE/COFF image is supported. Supported
+  does not mean the image can be executed it means the PE/COFF loader supports
+  loading and relocating of the image type. It's up to the caller to support
+  the entry point.
+
+  @param  Machine   Machine type from the PE Header.
+
+  @return TRUE if this PE/COFF loader can load the image
+
+**/
+BOOLEAN
+PeCoffLoaderImageFormatSupported (
+  IN  UINT16  Machine
+  );
+
+/**
+  Retrieves the magic value from the PE/COFF header.
+
+  @param  Hdr             The buffer in which to return the PE32, PE32+, or TE header.
+
+  @return EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC - Image is PE32
+  @return EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC - Image is PE32+
+
+**/
+UINT16
+PeCoffLoaderGetPeHeaderMagicValue (
+  IN  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION  Hdr
+  );
+
+/**
+  Retrieves the PE or TE Header from a PE/COFF or TE image.
+
+  @param  ImageContext    The context of the image being loaded.
+  @param  Hdr             The buffer in which to return the PE32, PE32+, or TE header.
+
+  @retval RETURN_SUCCESS  The PE or TE Header is read.
+  @retval Other           The error status from reading the PE/COFF or TE image using the ImageRead function.
+
+**/
+RETURN_STATUS
+PeCoffLoaderGetPeHeader (
+  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT         *ImageContext,
+  OUT    EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION  Hdr
+  );
+
+/**
+  Converts an image address to the loaded address.
+
+  @param  ImageContext  The context of the image being loaded.
+  @param  Address       The address to be converted to the loaded address.
+
+  @return The converted address or NULL if the address can not be converted.
+
+**/
+VOID *
+PeCoffLoaderImageAddress (
+  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT          *ImageContext,
+  IN     UINTN                                 Address
+  );
+
+#endif