MdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c File Reference


Functions

EFI_STATUS EFIAPI _DriverUnloadHandler (EFI_HANDLE ImageHandle)
EFI_STATUS EFIAPI _ModuleEntryPoint (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)
EFI_STATUS EFIAPI EfiMain (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

Detailed Description

Entry point to a EFI/DXE driver.

Copyright (c) 2006 - 2011, 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.


Function Documentation

EFI_STATUS EFIAPI _DriverUnloadHandler ( EFI_HANDLE  ImageHandle  ) 

Unloads an image from memory.

This function is a callback that a driver registers to do cleanup when the UnloadImage boot service function is called.

Parameters:
ImageHandle The handle to the image to unload.
Returns:
Status returned by all unload().

References EFI_ERROR, gST, ProcessLibraryDestructorList(), and ProcessModuleUnloadList().

Referenced by _ModuleEntryPoint().

EFI_STATUS EFIAPI _ModuleEntryPoint ( IN EFI_HANDLE  ImageHandle,
IN EFI_SYSTEM_TABLE SystemTable 
)

The entry point of PE/COFF Image for a DXE Driver, DXE Runtime Driver, DXE SMM Driver, or UEFI Driver.

This function is the entry point for a DXE Driver, DXE Runtime Driver, DXE SMM Driver, or UEFI Driver. This function must call ProcessLibraryConstructorList() and ProcessModuleEntryPointList(). If the return status from ProcessModuleEntryPointList() is an error status, then ProcessLibraryDestructorList() must be called. The return value from ProcessModuleEntryPointList() is returned. If _gDriverUnloadImageCount is greater than zero, then an unload handler must be registered for this image and the unload handler must invoke ProcessModuleUnloadList(). If _gUefiDriverRevision is not zero and SystemTable->Hdr.Revision is less than _gUefiDriverRevison, then return EFI_INCOMPATIBLE_VERSION.

Parameters:
ImageHandle The image handle of the DXE Driver, DXE Runtime Driver, DXE SMM Driver, or UEFI Driver.
SystemTable A pointer to the EFI System Table.
Return values:
EFI_SUCCESS The DXE Driver, DXE Runtime Driver, DXE SMM Driver, or UEFI Driver exited normally.
EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
Other Return value from ProcessModuleEntryPointList().

References _DriverUnloadHandler(), _gDriverUnloadImageCount, _gUefiDriverRevision, ASSERT_EFI_ERROR, EFI_ERROR, EFI_INCOMPATIBLE_VERSION, gBS, gEfiLoadedImageProtocolGuid, EFI_BOOT_SERVICES::HandleProtocol, ProcessLibraryConstructorList(), ProcessLibraryDestructorList(), ProcessModuleEntryPointList(), and VOID.

EFI_STATUS EFIAPI EfiMain ( IN EFI_HANDLE  ImageHandle,
IN EFI_SYSTEM_TABLE SystemTable 
)

Required by the EBC compiler and identical in functionality to _ModuleEntryPoint().

This function is required to call _ModuleEntryPoint() passing in ImageHandle, and SystemTable.

Parameters:
ImageHandle The image handle of the DXE Driver, DXE Runtime Driver, DXE SMM Driver, or UEFI Driver.
SystemTable A pointer to the EFI System Table.
Return values:
EFI_SUCCESS The DXE Driver, DXE Runtime Driver, DXE SMM Driver, or UEFI Driver exited normally.
EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
Other Return value from ProcessModuleEntryPointList().

References _ModuleEntryPoint().


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