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/** @file
This file defines PeCoffLoader guid for PeCoffLoader entry in the HOB list.
It also defines PE/COFF Loader APIs in PeCoffLoader Hob entry shared between SEC, PEI and DXE
Copyright (c) 2006 - 2009, Intel Corporation
All rights reserved. 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 __PEI_PE_COFF_LOADER_H__
#define __PEI_PE_COFF_LOADER_H__
//
// Depend on PE_COFF_LOADER_IMAGE_CONTEXT structure definition in PeCoff library class.
//
#include <Library/PeCoffLib.h>
#define EFI_PEI_PE_COFF_LOADER_GUID \
{ 0xd8117cff, 0x94a6, 0x11d4, {0x9a, 0x3a, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } }
typedef struct _EFI_PEI_PE_COFF_LOADER_PROTOCOL EFI_PEI_PE_COFF_LOADER_PROTOCOL;
/**
Retrieves information about a PE/COFF image.
Computes the PeCoffHeaderOffset, IsTeImage, ImageType, ImageAddress, ImageSize,
DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders, and
DebugDirectoryEntryRva fields of the ImageContext structure.
If ImageContext is NULL, then return RETURN_INVALID_PARAMETER.
If the PE/COFF image accessed through the ImageRead service in the ImageContext
structure is not a supported PE/COFF image type, then return RETURN_UNSUPPORTED.
If any errors occur while computing the fields of ImageContext,
then the error status is returned in the ImageError field of ImageContext.
If the image is a TE image, then SectionAlignment is set to 0.
The ImageRead and Handle fields of ImageContext structure must be valid prior
to invoking this service.
@param This Pointer to the EFI_PEI_PE_COFF_LOADER_PROTOCOL instance.
@param ImageContext Pointer to the image context structure that describes the PE/COFF
image that needs to be examined by this function.
@retval RETURN_SUCCESS The information on the PE/COFF image was collected.
@retval RETURN_INVALID_PARAMETER ImageContext is NULL.
@retval RETURN_UNSUPPORTED The PE/COFF image is not supported.
**/
typedef
RETURN_STATUS
(EFIAPI *EFI_PEI_PE_COFF_LOADER_GET_IMAGE_INFO)(
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
);
/**
Loads a PE/COFF image into memory.
Loads the PE/COFF image accessed through the ImageRead service of ImageContext into the buffer
specified by the ImageAddress and ImageSize fields of ImageContext. The caller must allocate
the load buffer and fill in the ImageAddress and ImageSize fields prior to calling this function.
The EntryPoint, FixupDataSize, CodeView, and PdbPointer fields of ImageContext are computed.
The ImageRead, Handle, PeCoffHeaderOffset, IsTeImage, Machine, ImageType, ImageAddress, ImageSize,
DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders, and DebugDirectoryEntryRva
fields of the ImageContext structure must be valid prior to invoking this service.
@param This Pointer to the EFI_PEI_PE_COFF_LOADER_PROTOCOL instance.
@param ImageContext Pointer to the image context structure that describes the PE/COFF
image that is being loaded.
@retval RETURN_SUCCESS The PE/COFF image was loaded into the buffer specified by
the ImageAddress and ImageSize fields of ImageContext.
Extended status information is in the ImageError field of ImageContext.
@retval RETURN_BUFFER_TOO_SMALL The caller did not provide a large enough buffer.
Extended status information is in the ImageError field of ImageContext.
@retval RETURN_LOAD_ERROR The PE/COFF image is an EFI Runtime image with no relocations.
Extended status information is in the ImageError field of ImageContext.
@retval RETURN_INVALID_PARAMETER The image address is invalid.
Extended status information is in the ImageError field of ImageContext.
**/
typedef
RETURN_STATUS
(EFIAPI *EFI_PEI_PE_COFF_LOADER_LOAD_IMAGE)(
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
);
/**
Applies relocation fixups to a PE/COFF image that was loaded with PeCoffLoaderLoadImage().
If the DestinationAddress field of ImageContext is 0, then use the ImageAddress field of
ImageContext as the relocation base address. Otherwise, use the DestinationAddress field
of ImageContext as the relocation base address. The caller must allocate the relocation
fixup log buffer and fill in the FixupData field of ImageContext prior to calling this function.
The ImageRead, Handle, PeCoffHeaderOffset, IsTeImage, Machine, ImageType, ImageAddress,
ImageSize, DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders,
DebugDirectoryEntryRva, EntryPoint, FixupDataSize, CodeView, PdbPointer, and FixupData of
the ImageContext structure must be valid prior to invoking this service.
If ImageContext is NULL, then ASSERT().
@param This Pointer to the EFI_PEI_PE_COFF_LOADER_PROTOCOL instance.
@param ImageContext Pointer to the image context structure that describes the PE/COFF
image that is being relocated.
@retval RETURN_SUCCESS The PE/COFF image was relocated.
Extended status information is in the ImageError field of ImageContext.
@retval RETURN_LOAD_ERROR The image in not a valid PE/COFF image.
Extended status information is in the ImageError field of ImageContext.
@retval RETURN_UNSUPPORTED A relocation record type is not supported.
Extended status information is in the ImageError field of ImageContext.
**/
typedef
RETURN_STATUS
(EFIAPI *EFI_PEI_PE_COFF_LOADER_RELOCATE_IMAGE)(
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
);
/**
Unloads a loaded PE/COFF image from memory and releases its taken resource.
Releases any environment specific resources that were allocated when the image
specified by ImageContext was loaded using PeCoffLoaderLoadImage().
For NT32 emulator, the PE/COFF image loaded by system needs to release.
For real platform, the PE/COFF image loaded by Core doesn't needs to be unloaded,
this function can simply return RETURN_SUCCESS.
@param This Pointer to the EFI_PEI_PE_COFF_LOADER_PROTOCOL instance.
@param ImageContext Pointer to the image context structure that describes the PE/COFF
image to be unloaded.
@retval RETURN_SUCCESS The PE/COFF image was unloaded successfully.
**/
typedef
RETURN_STATUS
(EFIAPI *EFI_PEI_PE_COFF_LOADER_UNLOAD_IMAGE)(
IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
);
struct _EFI_PEI_PE_COFF_LOADER_PROTOCOL {
EFI_PEI_PE_COFF_LOADER_GET_IMAGE_INFO GetImageInfo;
EFI_PEI_PE_COFF_LOADER_LOAD_IMAGE LoadImage;
EFI_PEI_PE_COFF_LOADER_RELOCATE_IMAGE RelocateImage;
EFI_PEI_PE_COFF_LOADER_UNLOAD_IMAGE UnloadImage;
};
extern EFI_GUID gEfiPeiPeCoffLoaderGuid;
#endif
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