mirror of https://github.com/acidanthera/audk.git
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/** @file
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Provides services to perform additional actions to relocate and unload
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PE/Coff image for Emu environment specific purpose such as souce level debug.
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This version only works for DXE phase
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Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
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Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
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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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**/
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#include <PiDxe.h>
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#include <Protocol/EmuThunk.h>
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#include <Library/PeCoffLib.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/PeCoffExtraActionLib.h>
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//
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// Cache of UnixThunk protocol
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//
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EMU_THUNK_PROTOCOL *mThunk = NULL;
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/**
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The constructor function gets the pointer of the WinNT thunk functions
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It will ASSERT() if Unix thunk protocol is not installed.
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@retval EFI_SUCCESS Unix thunk protocol is found and cached.
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**/
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EFI_STATUS
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EFIAPI
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DxeEmuPeCoffLibExtraActionConstructor (
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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_HOB_GUID_TYPE *GuidHob;
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//
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// Retrieve EmuThunkProtocol from GUID'ed HOB
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//
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GuidHob = GetFirstGuidHob (&gEmuThunkProtocolGuid);
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ASSERT (GuidHob != NULL);
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mThunk = (EMU_THUNK_PROTOCOL *)(*(UINTN *)(GET_GUID_HOB_DATA (GuidHob)));
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ASSERT (mThunk != NULL);
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return EFI_SUCCESS;
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}
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/**
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Performs additional actions after a PE/COFF image has been loaded and relocated.
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If ImageContext is NULL, then ASSERT().
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@param ImageContext Pointer to the image context structure that describes the
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PE/COFF image that has already been loaded and relocated.
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**/
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VOID
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EFIAPI
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PeCoffLoaderRelocateImageExtraAction (
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IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
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)
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{
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if (mThunk != NULL) {
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mThunk->PeCoffRelocateImageExtraAction (ImageContext);
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}
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}
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/**
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Performs additional actions just before a PE/COFF image is unloaded. Any resources
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that were allocated by PeCoffLoaderRelocateImageExtraAction() must be freed.
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If ImageContext is NULL, then ASSERT().
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@param ImageContext Pointer to the image context structure that describes the
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PE/COFF image that is being unloaded.
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**/
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VOID
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EFIAPI
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PeCoffLoaderUnloadImageExtraAction (
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IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
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)
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{
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if (mThunk != NULL) {
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mThunk->PeCoffUnloadImageExtraAction (ImageContext);
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}
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}
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