Sync with PE/COFF Extra Action library class comments and add ASSERT() conditions if ImageContext is NULL.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8273 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 18 insertions, 17 deletions

diff --git a/Nt32Pkg/Library/DxeNt32PeCoffExtraActionLib/DxeNt32PeCoffExtraActionLib.c b/Nt32Pkg/Library/DxeNt32PeCoffExtraActionLib/DxeNt32PeCoffExtraActionLib.c
index ff5028d4a8..ef46107742 100644
--- a/Nt32Pkg/Library/DxeNt32PeCoffExtraActionLib/DxeNt32PeCoffExtraActionLib.c
+++ b/Nt32Pkg/Library/DxeNt32PeCoffExtraActionLib/DxeNt32PeCoffExtraActionLib.c
@@ -250,15 +250,14 @@ RemoveModeHandle (
 }

 

 /**

-  Applies additional actions to relocate fixups to a PE/COFF image.

+  Performs additional actions after a PE/COFF image has been loaded and relocated.

 

-  Generally this function is called after sucessfully Applying relocation fixups 

-  to a PE/COFF image for some specicial purpose. 

-  As a example, For NT32 emulator, the function should be implemented and called

-  to support source level debug.  

-  

-  @param  ImageContext        Pointer to the image context structure that describes the PE/COFF

-                              image that is being relocated.

+  For NT32, this function load symbols to support source level debugging.

+

+  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

@@ -271,7 +270,9 @@ PeCoffLoaderRelocateImageExtraAction (
   CHAR16            *DllFileName;

   HMODULE           Library;

   UINTN             Index;

-  

+

+  ASSERT (ImageContext != NULL);

+

 	//

   // If we load our own PE COFF images the Windows debugger can not source

   //  level debug our code. If a valid PDB pointer exists usw it to load

@@ -351,17 +352,15 @@ PeCoffLoaderRelocateImageExtraAction (
 }  

 

 /**

-  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(). 

-  For NT32 emulator, the PE/COFF image loaded by system needs to release.

-  For real platform, the PE/COFF image loaded by Core doesn't needs to be unloaded, 

+  Performs additional actions just before a PE/COFF image is unloaded.  Any resources

+  that were allocated by PeCoffLoaderRelocateImageExtraAction() must be freed.

   

+  For NT32, this function unloads symbols for source level debugging.

+

   If ImageContext is NULL, then ASSERT().

   

-  @param  ImageContext              Pointer to the image context structure that describes the PE/COFF

-                                    image to be unloaded.

+  @param  ImageContext  Pointer to the image context structure that describes the

+                        PE/COFF image that is being unloaded.

 

 **/

 VOID

@@ -372,6 +371,8 @@ PeCoffLoaderUnloadImageExtraAction (
 {

 	VOID *ModHandle;

 

+  ASSERT (ImageContext != NULL);

+

   ModHandle = RemoveModeHandle (ImageContext);

   if (ModHandle != NULL) {

     mWinNt->FreeLibrary (ModHandle);