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PeCoffLoader.h File Reference

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Data Structures

struct  _PE_COFF_LOADER_PROTOCOL
 

Macros

#define PE_COFF_LOADER_PROTOCOL_GUID    { 0xB323179B, 0x97FB, 0x477E, { 0xB0, 0xFE, 0xD8, 0x85, 0x91, 0xFA, 0x11, 0xAB } }
 

Typedefs

typedef struct _PE_COFF_LOADER_PROTOCOL PE_COFF_LOADER_PROTOCOL
 
typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_GET_IMAGE_INFO) (IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext)
 
typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_RELOCATE_IMAGE) (IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext)
 
typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_LOAD_IMAGE) (IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext)
 
typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_READ_FROM_MEMORY) (IN VOID *FileHandle, IN UINTN FileOffset, IN OUT UINTN *ReadSize, OUT VOID *Buffer)
 
typedef VOID(EFIAPI * PE_COFF_LOADER_RELOCATE_IMAGE_FOR_RUNTIME) (IN PHYSICAL_ADDRESS ImageBase, IN PHYSICAL_ADDRESS VirtImageBase, IN UINTN ImageSize, IN VOID *RelocationData)
 
typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_UNLOAD_IMAGE) (IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext)
 

Variables

EFI_GUID gPeCoffLoaderProtocolGuid
 

Detailed Description

Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
Portions copyright (c) 2010, Apple Inc. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file PeCoffLoader.h.

Macro Definition Documentation

◆ PE_COFF_LOADER_PROTOCOL_GUID

#define PE_COFF_LOADER_PROTOCOL_GUID    { 0xB323179B, 0x97FB, 0x477E, { 0xB0, 0xFE, 0xD8, 0x85, 0x91, 0xFA, 0x11, 0xAB } }

Definition at line 16 of file PeCoffLoader.h.

Typedef Documentation

◆ PE_COFF_LOADER_GET_IMAGE_INFO

typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_GET_IMAGE_INFO) (IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext)

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.

Parameters
ImageContextPointer to the image context structure that describes the PE/COFF image that needs to be examined by this function.
Return values
RETURN_SUCCESSThe information on the PE/COFF image was collected.
RETURN_INVALID_PARAMETERImageContext is NULL.
RETURN_UNSUPPORTEDThe PE/COFF image is not supported.

Definition at line 45 of file PeCoffLoader.h.

◆ PE_COFF_LOADER_LOAD_IMAGE

typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_LOAD_IMAGE) (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, PdbPointer and HiiResourceData 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.

If ImageContext is NULL, then ASSERT().

Note that if the platform does not maintain coherency between the instruction cache(s) and the data cache(s) in hardware, then the caller is responsible for performing cache maintenance operations prior to transferring control to a PE/COFF image that is loaded using this library.

Parameters
ImageContextPointer to the image context structure that describes the PE/COFF image that is being loaded.
Return values
RETURN_SUCCESSThe 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.
RETURN_BUFFER_TOO_SMALLThe caller did not provide a large enough buffer. Extended status information is in the ImageError field of ImageContext.
RETURN_LOAD_ERRORThe PE/COFF image is an EFI Runtime image with no relocations. Extended status information is in the ImageError field of ImageContext.
RETURN_INVALID_PARAMETERThe image address is invalid. Extended status information is in the ImageError field of ImageContext.

Definition at line 118 of file PeCoffLoader.h.

◆ PE_COFF_LOADER_PROTOCOL

Definition at line 19 of file PeCoffLoader.h.

◆ PE_COFF_LOADER_READ_FROM_MEMORY

typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_READ_FROM_MEMORY) (IN VOID *FileHandle, IN UINTN FileOffset, IN OUT UINTN *ReadSize, OUT VOID *Buffer)

Reads contents of a PE/COFF image from a buffer in system memory.

This is the default implementation of a PE_COFF_LOADER_READ_FILE function that assumes FileHandle pointer to the beginning of a PE/COFF image. This function reads contents of the PE/COFF image that starts at the system memory address specified by FileHandle. The read operation copies ReadSize bytes from the PE/COFF image starting at byte offset FileOffset into the buffer specified by Buffer. The size of the buffer actually read is returned in ReadSize.

If FileHandle is NULL, then ASSERT(). If ReadSize is NULL, then ASSERT(). If Buffer is NULL, then ASSERT().

Parameters
FileHandlePointer to base of the input stream
FileOffsetOffset into the PE/COFF image to begin the read operation.
ReadSizeOn input, the size in bytes of the requested read operation. On output, the number of bytes actually read.
BufferOutput buffer that contains the data read from the PE/COFF image.
Return values
RETURN_SUCCESSData is read from FileOffset from the Handle into the buffer.

Definition at line 147 of file PeCoffLoader.h.

◆ PE_COFF_LOADER_RELOCATE_IMAGE

typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_RELOCATE_IMAGE) (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().

Note that if the platform does not maintain coherency between the instruction cache(s) and the data cache(s) in hardware, then the caller is responsible for performing cache maintenance operations prior to transferring control to a PE/COFF image that is loaded using this library.

Parameters
ImageContextPointer to the image context structure that describes the PE/COFF image that is being relocated.
Return values
RETURN_SUCCESSThe PE/COFF image was relocated. Extended status information is in the ImageError field of ImageContext.
RETURN_LOAD_ERRORThe image in not a valid PE/COFF image. Extended status information is in the ImageError field of ImageContext.
RETURN_UNSUPPORTEDA relocation record type is not supported. Extended status information is in the ImageError field of ImageContext.

Definition at line 81 of file PeCoffLoader.h.

◆ PE_COFF_LOADER_RELOCATE_IMAGE_FOR_RUNTIME

typedef VOID(EFIAPI * PE_COFF_LOADER_RELOCATE_IMAGE_FOR_RUNTIME) (IN PHYSICAL_ADDRESS ImageBase, IN PHYSICAL_ADDRESS VirtImageBase, IN UINTN ImageSize, IN VOID *RelocationData)

Reapply fixups on a fixed up PE32/PE32+ image to allow virtual calling at EFI runtime.

This function reapplies relocation fixups to the PE/COFF image specified by ImageBase and ImageSize so the image will execute correctly when the PE/COFF image is mapped to the address specified by VirtualImageBase. RelocationData must be identical to the FixupData buffer from the PE_COFF_LOADER_IMAGE_CONTEXT structure after this PE/COFF image was relocated with PeCoffLoaderRelocateImage().

Note that if the platform does not maintain coherency between the instruction cache(s) and the data cache(s) in hardware, then the caller is responsible for performing cache maintenance operations prior to transferring control to a PE/COFF image that is loaded using this library.

Parameters
ImageBaseBase address of a PE/COFF image that has been loaded and relocated into system memory.
VirtImageBaseThe request virtual address that the PE/COFF image is to be fixed up for.
ImageSizeThe size, in bytes, of the PE/COFF image.
RelocationDataA pointer to the relocation data that was collected when the PE/COFF image was relocated using PeCoffLoaderRelocateImage().

Definition at line 179 of file PeCoffLoader.h.

◆ PE_COFF_LOADER_UNLOAD_IMAGE

typedef RETURN_STATUS(EFIAPI * PE_COFF_LOADER_UNLOAD_IMAGE) (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.

If ImageContext is NULL, then ASSERT().

Parameters
ImageContextPointer to the image context structure that describes the PE/COFF image to be unloaded.
Return values
RETURN_SUCCESSThe PE/COFF image was unloaded successfully.

Definition at line 204 of file PeCoffLoader.h.