1 files changed, 103 insertions, 0 deletions
diff --git a/EmulatorPkg/Library/DxeEmuPeCoffExtraActionLib/DxeEmuPeCoffExtraActionLib.c b/EmulatorPkg/Library/DxeEmuPeCoffExtraActionLib/DxeEmuPeCoffExtraActionLib.c
new file mode 100644
index 0000000000..fdb8d5334d
--- /dev/null
+++ b/EmulatorPkg/Library/DxeEmuPeCoffExtraActionLib/DxeEmuPeCoffExtraActionLib.c
@@ -0,0 +1,103 @@
+/** @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 DXE phase  
+
+Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
+Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiDxe.h>
+
+#include <Protocol/EmuThunk.h>
+
+#include <Library/PeCoffLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/PeCoffExtraActionLib.h>
+
+//
+// Cache of UnixThunk protocol 
+//
+EMU_THUNK_PROTOCOL   *mThunk = NULL;
+
+
+/**
+  The constructor function gets  the pointer of the WinNT thunk functions
+  It will ASSERT() if Unix thunk protocol is not installed.
+
+  @retval EFI_SUCCESS   Unix thunk protocol is found and cached.
+
+**/
+EFI_STATUS
+EFIAPI
+DxeEmuPeCoffLibExtraActionConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+   EFI_HOB_GUID_TYPE        *GuidHob;
+
+  //
+  // Retrieve EmuThunkProtocol from GUID'ed HOB
+  //
+  GuidHob = GetFirstGuidHob (&gEmuThunkProtocolGuid);
+  ASSERT (GuidHob != NULL);
+  mThunk = (EMU_THUNK_PROTOCOL *)(*(UINTN *)(GET_GUID_HOB_DATA (GuidHob)));
+  ASSERT (mThunk != NULL);
+
+  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 (mThunk != NULL) {
+    mThunk->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 (mThunk != NULL) {
+    mThunk->PeCoffUnloadImageExtraAction (ImageContext);
+  }
+}