--- binutils.orig/binutils/objcopy.c	2018-08-06 09:11:02.053503486 +0100

+++ binutils-2.30/binutils/objcopy.c	2018-08-06 09:11:23.296329566 +0100

@@ -2174,7 +2174,7 @@ merge_gnu_build_notes (bfd * abfd, asect

      3. Eliminate any NT_GNU_BUILD_ATTRIBUTE_OPEN notes that have the same

         full name field as the immediately preceeding note with the same type

 	of name and whose address ranges coincide.

-	IE - it there are gaps in the coverage of the notes, then these gaps

+	IE - if there are gaps in the coverage of the notes, then these gaps

 	must be preserved.

      4. Combine the numeric value of any NT_GNU_BUILD_ATTRIBUTE_OPEN notes

         of type GNU_BUILD_ATTRIBUTE_STACK_SIZE.

@@ -2182,16 +2182,48 @@ merge_gnu_build_notes (bfd * abfd, asect

         its description field is empty then the nearest preceeding OPEN note

 	with a non-empty description field must also be preserved *OR* the

 	description field of the note must be changed to contain the starting

-	address to which it refers.  */

+	address to which it refers.

+     6. Notes with the same start and end address can be deleted.  */

   for (pnote = pnotes + 1; pnote < pnotes_end; pnote ++)

     {

       int                      note_type;

       objcopy_internal_note *  back;

       objcopy_internal_note *  prev_open_with_range = NULL;

+      /* Rule 6 - delete 0-range notes.  */

+      if (pnote->start == pnote->end)

+	{

+	  duplicate_found = TRUE;

+	  pnote->note.type = 0;

+	  continue;

+	}

+

       /* Rule 2 - preserve function notes.  */

       if (! is_open_note (pnote))

-	continue;

+	{

+	  int iter;

+

+	  /* Check to see if there is an identical previous function note.

+	     This can happen with overlays for example.  */

+	  for (iter = 0, back = pnote -1; back >= pnotes; back --)

+	    {

+	      if (back->start == pnote->start

+		  && back->end == pnote->end

+		  && back->note.namesz == pnote->note.namesz

+		  && memcmp (back->note.namedata, pnote->note.namedata, pnote->note.namesz) == 0)

+		{

+ fprintf (stderr, "DUP FUNXC\n");

+		  duplicate_found = TRUE;

+		  pnote->note.type = 0;

+		  break;

+		}

+

+	      /* Don't scan too far back however.  */

+	      if (iter ++ > 16)

+		break;

+	    }

+	  continue;

+	}

       note_type = pnote->note.namedata[attribute_type_byte];