/**
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);
}
/**
This service enables PEIMs to discover a given instance of an interface.
So this is, well a hack, so we can reuse the same libraries as the PEI Core
for XIP modules....
@param Guid A pointer to the GUID whose corresponding interface needs to be
found.
@param Instance The N-th instance of the interface that is required.
@param PpiDescriptor A pointer to instance of the EFI_PEI_PPI_DESCRIPTOR.
@param Ppi A pointer to the instance of the interface.
@retval EFI_SUCCESS The interface was successfully returned.
@retval EFI_NOT_FOUND The PPI descriptor is not found in the database.
**/
EFI_STATUS
EFIAPI
PeiServicesLocatePpi (
IN CONST EFI_GUID *Guid,
IN UINTN Instance,
IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,
IN OUT VOID **Ppi
)
{
EFI_PEI_PPI_DESCRIPTOR *PpiList;
if (Instance != 0) {
return EFI_NOT_FOUND;
}
for (PpiList = EMU_MAGIC_PAGE()->PpiList; ; PpiList++) {
if (CompareGuid (PpiList->Guid, Guid)) {
if (PpiDescriptor != NULL) {
*PpiDescriptor = PpiList;
}
if (Ppi != NULL) {
*Ppi = PpiList->Ppi;
}
return EFI_SUCCESS;
}
if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) == EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {
break;
}
}
return EFI_NOT_FOUND;
}
/**
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;
}
