1 files changed, 132 insertions, 0 deletions
diff --git a/UnixPkg/Library/DxeUnixPeCoffExtraActionLib/DxeUnixPeCoffExtraActionLib.c b/UnixPkg/Library/DxeUnixPeCoffExtraActionLib/DxeUnixPeCoffExtraActionLib.c
new file mode 100644
index 0000000000..a28fde8ebc
--- /dev/null
+++ b/UnixPkg/Library/DxeUnixPeCoffExtraActionLib/DxeUnixPeCoffExtraActionLib.c
@@ -0,0 +1,132 @@
+/**@file
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. 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.
+
+Module Name:
+
+  PeiUnixPeCoffExtraActionLib.c
+
+Abstract:
+
+  Provides services to perform additional actions to relocate and unload
+  PE/Coff image for Unix environment specific purpose such as souce level debug.
+  This version only works for DXE phase  
+
+
+**/
+
+#include <PiDxe.h>
+#include <Guid/StatusCodeDataTypeId.h>
+#include <UnixDxe.h>
+#include <Library/PeCoffLib.h>
+#include <Library/PeiServicesLib.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 
+//
+EFI_UNIX_THUNK_PROTOCOL   *mUnix;
+
+
+/**
+  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
+DxeUnixPeCoffLibExtraActionConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+	 EFI_HOB_GUID_TYPE        *GuidHob;
+
+  //
+  // Retrieve UnixThunkProtocol from GUID'ed HOB
+  //
+  GuidHob = GetFirstGuidHob (&gEfiUnixThunkProtocolGuid);
+  ASSERT (GuidHob != NULL);
+  mUnix = (EFI_UNIX_THUNK_PROTOCOL *)(*(UINTN *)(GET_GUID_HOB_DATA (GuidHob)));
+  ASSERT (mUnix != NULL);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Applies additional actions to relocate fixups to a PE/COFF image.
+
+  Generally this function is called after sucessfully Applying relocation fixups 
+  to a PE/COFF image for some specicial purpose.  
+  
+  @param  ImageContext        Pointer to the image context structure that describes the PE/COFF
+                              image that is being relocated.
+
+**/
+VOID
+EFIAPI
+PeCoffLoaderRelocateImageExtraAction (
+  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext
+  )
+{
+  VOID * Handle;
+  VOID * Entry;
+
+  Handle = NULL;
+  Entry  = NULL;
+  
+  DEBUG ((EFI_D_ERROR, "Loading %s 0x%08lx - entry point 0x%08lx\n",
+          ImageContext->PdbPointer,
+          (UINTN)ImageContext->ImageAddress,
+          (UINTN)ImageContext->EntryPoint));
+
+  Handle = mUnix->Dlopen(ImageContext->PdbPointer, RTLD_NOW);
+  
+  if (Handle) {
+    Entry = mUnix->Dlsym(Handle, "_ModuleEntryPoint");
+  } else {
+  	DEBUG ((EFI_D_ERROR, "%s\n", mUnix->Dlerror()));
+  }
+  
+  if (Entry != NULL) {
+    ImageContext->EntryPoint = Entry;
+    DEBUG ((EFI_D_ERROR, "Change %s Entrypoint to :0x%08lx\n", ImageContext->PdbPointer, Entry));
+  }
+
+
+  return;
+ }  
+
+/**
+  Unloads a loaded PE/COFF image from memory and releases its taken resource.
+  
+  Releases any environment specific resources that were allocated when the image 
+  specified by ImageContext was loaded using PeCoffLoaderLoadImage(). 
+  
+  If ImageContext is NULL, then ASSERT().
+  
+  @param  ImageContext              Pointer to the image context structure that describes the PE/COFF
+                                    image to be unloaded.
+
+**/
+VOID
+EFIAPI
+PeCoffLoaderUnloadImageExtraAction (
+  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext
+  )
+{
+}
+\ No newline at end of file