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/** @file
Provides services to perform additional actions to relocate and unload
PE/Coff image for Emu environment specific purpose such as souce level debug.
This version only works for PEI phase
Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiPei.h>
#include <Ppi/EmuThunk.h>
#include <Protocol/EmuThunk.h>
#include <Library/PeCoffLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseLib.h>
#include <Library/PeCoffExtraActionLib.h>
#include <Library/EmuMagicPageLib.h>
//
// Cache of UnixThunk protocol
//
EMU_THUNK_PROTOCOL *mThunk = NULL;
/**
The function caches the pointer of the Unix thunk functions
It will ASSERT() if Unix thunk ppi is not installed.
@retval EFI_SUCCESS WinNT thunk protocol is found and cached.
**/
EFI_STATUS
EFIAPI
EmuPeCoffGetThunkStucture (
)
{
EMU_THUNK_PPI *ThunkPpi;
EFI_STATUS Status;
//
// Locate Unix ThunkPpi for retrieving standard output handle
//
Status = PeiServicesLocatePpi (
&gEmuThunkPpiGuid,
0,
NULL,
(VOID **) &ThunkPpi
);
ASSERT_EFI_ERROR (Status);
EMU_MAGIC_PAGE()->Thunk = (EMU_THUNK_PROTOCOL *) ThunkPpi->Thunk ();
return EFI_SUCCESS;
}
/**
Performs additional actions after a PE/COFF image has been loaded and relocated.
If ImageContext is NULL, then ASSERT().
@param ImageContext Pointer to the image context structure that describes the
PE/COFF image that has already been loaded and relocated.
**/
VOID
EFIAPI
PeCoffLoaderRelocateImageExtraAction (
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
)
{
if (EMU_MAGIC_PAGE()->Thunk == NULL) {
EmuPeCoffGetThunkStucture ();
}
EMU_MAGIC_PAGE()->Thunk->PeCoffRelocateImageExtraAction (ImageContext);
}
/**
Performs additional actions just before a PE/COFF image is unloaded. Any resources
that were allocated by PeCoffLoaderRelocateImageExtraAction() must be freed.
If ImageContext is NULL, then ASSERT().
@param ImageContext Pointer to the image context structure that describes the
PE/COFF image that is being unloaded.
**/
VOID
EFIAPI
PeCoffLoaderUnloadImageExtraAction (
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
)
{
if (EMU_MAGIC_PAGE()->Thunk == NULL) {
EmuPeCoffGetThunkStucture ();
}
EMU_MAGIC_PAGE()->Thunk->PeCoffUnloadImageExtraAction (ImageContext);
}
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