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116 lines
3.2 KiB
C
116 lines
3.2 KiB
C
/** @file
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Entry point library instance to a UEFI application.
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Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi.h>
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#include <Library/UefiApplicationEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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/**
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Entry point to UEFI Application.
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This function is the entry point for a UEFI Application. This function must call
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ProcessLibraryConstructorList(), ProcessModuleEntryPointList(), and ProcessLibraryDestructorList().
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The return value from ProcessModuleEntryPointList() is returned.
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If _gUefiDriverRevision is not zero and SystemTable->Hdr.Revision is less than _gUefiDriverRevison,
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then return EFI_INCOMPATIBLE_VERSION.
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@param ImageHandle The image handle of the UEFI Application.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The UEFI Application exited normally.
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@retval EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
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@retval Other Return value from ProcessModuleEntryPointList().
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**/
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EFI_STATUS
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EFIAPI
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_ModuleEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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if (_gUefiDriverRevision != 0) {
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//
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// Make sure that the EFI/UEFI spec revision of the platform is >= EFI/UEFI spec revision of the application.
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//
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if (SystemTable->Hdr.Revision < _gUefiDriverRevision) {
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return EFI_INCOMPATIBLE_VERSION;
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}
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}
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//
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// Call constructor for all libraries.
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//
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ProcessLibraryConstructorList (ImageHandle, SystemTable);
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//
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// Call the module's entry point
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//
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Status = ProcessModuleEntryPointList (ImageHandle, SystemTable);
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//
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// Process destructor for all libraries.
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//
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ProcessLibraryDestructorList (ImageHandle, SystemTable);
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//
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// Return the return status code from the driver entry point
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//
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return Status;
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}
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/**
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Invokes the library destructors for all dependent libraries and terminates
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the UEFI Application.
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This function calls ProcessLibraryDestructorList() and the EFI Boot Service Exit()
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with a status specified by Status.
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@param Status Status returned by the application that is exiting.
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**/
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VOID
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EFIAPI
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Exit (
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IN EFI_STATUS Status
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)
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{
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ProcessLibraryDestructorList (gImageHandle, gST);
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gBS->Exit (gImageHandle, Status, 0, NULL);
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}
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/**
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Required by the EBC compiler and identical in functionality to _ModuleEntryPoint().
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@param ImageHandle The image handle of the UEFI Application.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The UEFI Application exited normally.
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@retval EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
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@retval Other Return value from ProcessModuleEntryPointList().
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**/
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EFI_STATUS
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EFIAPI
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EfiMain (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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return _ModuleEntryPoint (ImageHandle, SystemTable);
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}
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