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/** @file
Entry point library instance to a UEFI application.
Copyright (c) 2007 - 2018, 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.
**/
#include <Uefi.h>
#include <Library/UefiApplicationEntryPoint.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
/**
Entry point to UEFI Application.
This function is the entry point for a UEFI Application. This function must call
ProcessLibraryConstructorList(), ProcessModuleEntryPointList(), and ProcessLibraryDestructorList().
The return value from ProcessModuleEntryPointList() is returned.
If _gUefiDriverRevision is not zero and SystemTable->Hdr.Revision is less than _gUefiDriverRevison,
then return EFI_INCOMPATIBLE_VERSION.
@param ImageHandle The image handle of the UEFI Application.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The UEFI Application exited normally.
@retval EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
@retval Other Return value from ProcessModuleEntryPointList().
**/
EFI_STATUS
EFIAPI
_ModuleEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
if (_gUefiDriverRevision != 0) {
//
// Make sure that the EFI/UEFI spec revision of the platform is >= EFI/UEFI spec revision of the application.
//
if (SystemTable->Hdr.Revision < _gUefiDriverRevision) {
return EFI_INCOMPATIBLE_VERSION;
}
}
//
// Call constructor for all libraries.
//
ProcessLibraryConstructorList (ImageHandle, SystemTable);
//
// Call the module's entry point
//
Status = ProcessModuleEntryPointList (ImageHandle, SystemTable);
//
// Process destructor for all libraries.
//
ProcessLibraryDestructorList (ImageHandle, SystemTable);
//
// Return the return status code from the driver entry point
//
return Status;
}
/**
Invokes the library destructors for all dependent libraries and terminates
the UEFI Application.
This function calls ProcessLibraryDestructorList() and the EFI Boot Service Exit()
with a status specified by Status.
@param Status Status returned by the application that is exiting.
**/
VOID
EFIAPI
Exit (
IN EFI_STATUS Status
)
{
ProcessLibraryDestructorList (gImageHandle, gST);
gBS->Exit (gImageHandle, Status, 0, NULL);
}
/**
Required by the EBC compiler and identical in functionality to _ModuleEntryPoint().
@param ImageHandle The image handle of the UEFI Application.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The UEFI Application exited normally.
@retval EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
@retval Other Return value from ProcessModuleEntryPointList().
**/
EFI_STATUS
EFIAPI
EfiMain (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
return _ModuleEntryPoint (ImageHandle, SystemTable);
}
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