878ddf1fc3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
381 lines
10 KiB
C
381 lines
10 KiB
C
/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Image.h
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Abstract:
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Revision History
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--*/
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#ifndef _IMAGE_H_
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#define _IMAGE_H_
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#define LOADED_IMAGE_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32('l','d','r','i')
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typedef struct {
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UINTN Signature;
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EFI_HANDLE Handle; // Image handle
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UINTN Type; // Image type
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BOOLEAN Started; // If entrypoint has been called
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EFI_IMAGE_ENTRY_POINT EntryPoint; // The image's entry point
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EFI_LOADED_IMAGE_PROTOCOL Info; // loaded image protocol
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EFI_PHYSICAL_ADDRESS ImageBasePage; // Location in memory
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UINTN NumberOfPages; // Number of pages
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CHAR8 *FixupData; // Original fixup data
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EFI_TPL Tpl; // Tpl of started image
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EFI_STATUS Status; // Status returned by started image
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UINTN ExitDataSize; // Size of ExitData from started image
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VOID *ExitData; // Pointer to exit data from started image
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BASE_LIBRARY_JUMP_BUFFER *JumpContext; // Pointer to buffer for context save/retore
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UINT16 Machine; // Machine type from PE image
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EFI_EBC_PROTOCOL *Ebc; // EBC Protocol pointer
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BOOLEAN RuntimeFixupValid; // True if RT image needs fixup
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VOID *RuntimeFixup; // Copy of fixup data;
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LIST_ENTRY Link; // List of RT LOADED_IMAGE_PRIVATE_DATA
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PE_COFF_LOADER_IMAGE_CONTEXT ImageContext; // PeCoffLoader ImageContext
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} LOADED_IMAGE_PRIVATE_DATA;
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#define LOADED_IMAGE_PRIVATE_DATA_FROM_THIS(a) \
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CR(a, LOADED_IMAGE_PRIVATE_DATA, Info, LOADED_IMAGE_PRIVATE_DATA_SIGNATURE)
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#define LOAD_PE32_IMAGE_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32('l','p','e','i')
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typedef struct {
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UINTN Signature;
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EFI_HANDLE Handle; // Image handle
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EFI_PE32_IMAGE_PROTOCOL Pe32Image;
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} LOAD_PE32_IMAGE_PRIVATE_DATA;
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#define LOAD_PE32_IMAGE_PRIVATE_DATA_FROM_THIS(a) \
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CR(a, LOAD_PE32_IMAGE_PRIVATE_DATA, Pe32Image, LOAD_PE32_IMAGE_PRIVATE_DATA_SIGNATURE)
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//
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// Private Data Types
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//
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#define IMAGE_FILE_HANDLE_SIGNATURE EFI_SIGNATURE_32('i','m','g','f')
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typedef struct {
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UINTN Signature;
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BOOLEAN FreeBuffer;
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VOID *Source;
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UINTN SourceSize;
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} IMAGE_FILE_HANDLE;
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//
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// Abstractions for reading image contents
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//
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EFI_STATUS
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CoreOpenImageFile (
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IN BOOLEAN BootPolicy,
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IN VOID *SourceBuffer OPTIONAL,
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IN UINTN SourceSize,
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IN OUT EFI_DEVICE_PATH_PROTOCOL *FilePath,
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OUT EFI_HANDLE *DeviceHandle,
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IN IMAGE_FILE_HANDLE *ImageFileHandle,
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OUT UINT32 *AuthenticationStatus
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)
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/*++
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Routine Description:
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Opens a file for (simple) reading. The simple read abstraction
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will access the file either from a memory copy, from a file
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system interface, or from the load file interface.
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Arguments:
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BootPolicy - Policy for Open Image File.
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SourceBuffer - Pointer to the memory location containing copy
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of the image to be loaded.
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SourceSize - The size in bytes of SourceBuffer.
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FilePath - The specific file path from which the image is loaded
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DeviceHandle - Pointer to the return device handle.
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ImageFileHandle - Pointer to the image file handle.
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AuthenticationStatus - Pointer to a caller-allocated UINT32 in which the authentication status is returned.
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Returns:
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A handle to access the file
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--*/
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;
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EFI_STATUS
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EFIAPI
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CoreReadImageFile (
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IN VOID *UserHandle,
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IN UINTN Offset,
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IN OUT UINTN *ReadSize,
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OUT VOID *Buffer
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)
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/*++
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Routine Description:
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Read image file (specified by UserHandle) into user specified buffer with specified offset
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and length.
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Arguments:
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UserHandle - Image file handle
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Offset - Offset to the source file
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ReadSize - For input, pointer of size to read;
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For output, pointer of size actually read.
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Buffer - Buffer to write into
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Returns:
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EFI_SUCCESS - Successfully read the specified part of file into buffer.
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--*/
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;
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VOID
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EFIAPI
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CoreCloseImageFile (
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IN IMAGE_FILE_HANDLE *ImageFileHandle
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)
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/*++
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Routine Description:
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A function out of date, should be removed.
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Arguments:
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ImageFileHandle - Handle of the file to close
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Returns:
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None
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--*/
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;
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//
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// Image processing worker functions
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//
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EFI_STATUS
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CoreDevicePathToInterface (
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IN EFI_GUID *Protocol,
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IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,
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OUT VOID **Interface,
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OUT EFI_HANDLE *Handle
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)
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/*++
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Routine Description:
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Search a handle to a device on a specified device path that supports a specified protocol,
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interface of that protocol on that handle is another output.
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Arguments:
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Protocol - The protocol to search for
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FilePath - The specified device path
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Interface - Interface of the protocol on the handle
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Handle - The handle to the device on the specified device path that supports the protocol.
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Returns:
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Status code.
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--*/
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;
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EFI_STATUS
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CoreLoadPeImage (
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IN VOID *Pe32Handle,
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IN LOADED_IMAGE_PRIVATE_DATA *Image,
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IN EFI_PHYSICAL_ADDRESS DstBuffer OPTIONAL,
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OUT EFI_PHYSICAL_ADDRESS *EntryPoint OPTIONAL,
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IN UINT32 Attribute
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)
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/*++
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Routine Description:
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Loads, relocates, and invokes a PE/COFF image
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Arguments:
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Pe32Handle - The handle of PE32 image
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Image - PE image to be loaded
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DstBuffer - The buffer to store the image
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EntryPoint - A pointer to the entry point
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Attribute - The bit mask of attributes to set for the load PE image
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Returns:
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EFI_SUCCESS - The file was loaded, relocated, and invoked
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EFI_OUT_OF_RESOURCES - There was not enough memory to load and relocate the PE/COFF file
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EFI_INVALID_PARAMETER - Invalid parameter
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EFI_BUFFER_TOO_SMALL - Buffer for image is too small
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--*/
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;
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LOADED_IMAGE_PRIVATE_DATA *
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CoreLoadedImageInfo (
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IN EFI_HANDLE ImageHandle
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)
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/*++
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Routine Description:
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TODO: Add function description
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Arguments:
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ImageHandle - TODO: add argument description
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Returns:
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TODO: add return values
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--*/
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;
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VOID
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CoreUnloadAndCloseImage (
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IN LOADED_IMAGE_PRIVATE_DATA *Image,
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IN BOOLEAN FreePage
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)
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/*++
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Routine Description:
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Unloads EFI image from memory.
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Arguments:
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Image - EFI image
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FreePage - Free allocated pages
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Returns:
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None
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--*/
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;
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//
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// Exported Image functions
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//
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EFI_STATUS
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EFIAPI
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CoreLoadImageEx (
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IN EFI_PE32_IMAGE_PROTOCOL *This,
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IN EFI_HANDLE ParentImageHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
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IN VOID *SourceBuffer OPTIONAL,
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IN UINTN SourceSize,
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IN EFI_PHYSICAL_ADDRESS DstBuffer OPTIONAL,
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OUT UINTN *NumberOfPages OPTIONAL,
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OUT EFI_HANDLE *ImageHandle,
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OUT EFI_PHYSICAL_ADDRESS *EntryPoint OPTIONAL,
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IN UINT32 Attribute
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)
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/*++
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Routine Description:
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Loads an EFI image into memory and returns a handle to the image with extended parameters.
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Arguments:
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ParentImageHandle - The caller's image handle.
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FilePath - The specific file path from which the image is loaded.
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SourceBuffer - If not NULL, a pointer to the memory location containing a copy of
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the image to be loaded.
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SourceSize - The size in bytes of SourceBuffer.
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DstBuffer - The buffer to store the image.
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NumberOfPages - For input, specifies the space size of the image by caller if not NULL.
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For output, specifies the actual space size needed.
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ImageHandle - Image handle for output.
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EntryPoint - Image entry point for output.
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Attribute - The bit mask of attributes to set for the load PE image.
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Returns:
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EFI_SUCCESS - The image was loaded into memory.
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EFI_NOT_FOUND - The FilePath was not found.
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EFI_INVALID_PARAMETER - One of the parameters has an invalid value.
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EFI_UNSUPPORTED - The image type is not supported, or the device path cannot be
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parsed to locate the proper protocol for loading the file.
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EFI_OUT_OF_RESOURCES - Image was not loaded due to insufficient resources.
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--*/
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;
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EFI_STATUS
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EFIAPI
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CoreUnloadImageEx (
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IN EFI_PE32_IMAGE_PROTOCOL *This,
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IN EFI_HANDLE ImageHandle
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)
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/*++
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Routine Description:
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Unload the specified image.
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Arguments:
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This - Indicates the calling context.
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ImageHandle - The specified image handle.
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Returns:
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EFI_INVALID_PARAMETER - Image handle is NULL.
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EFI_UNSUPPORTED - Attempt to unload an unsupported image.
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EFI_SUCCESS - Image successfully unloaded.
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--*/
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;
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#endif
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