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44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/** @file
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UEFI Runtime Services Table Library.
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This library instance retrieve EFI_RUNTIME_SERVICES pointer from EFI system table
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in library's constructor.
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Copyright (c) 2006 - 2008, 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/DebugLib.h>
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EFI_RUNTIME_SERVICES *gRT = NULL;
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/**
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The constructor function caches the pointer of Runtime Services Table.
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The constructor function caches the pointer of Runtime Services Table.
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It will ASSERT() if the pointer of Runtime Services Table is NULL.
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It will always return EFI_SUCCESS.
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@param ImageHandle The firmware allocated handle for the EFI image.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
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**/
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EFI_STATUS
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EFIAPI
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UefiRuntimeServicesTableLibConstructor (
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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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//
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// Cache pointer to the EFI Runtime Services Table
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//
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gRT = SystemTable->RuntimeServices;
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ASSERT (gRT != NULL);
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return EFI_SUCCESS;
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}
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