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PATCH: ld/2537: Linker doesn't allow sections reserved for applications.

H. J. Lu hjl@lucon.org
Tue Apr 18 16:03:00 GMT 2006 
On Fri, Apr 14, 2006 at 04:26:05PM -0700, H. J. Lu wrote:
> Sections bewteen SHT_LOUSER and SHT_HIUSER are reserved for
> applications. Linker should accept them.
> 
> 

Here is the updated patch. If section reserved for applications has
SHF_ALLOC, linker can't handle it properly.


H.J.
----
2006-04-14  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/2537
	* elf.c (bfd_section_from_shdr): Allow sections reserved for
	applications.

--- bfd/elf.c.user	2006-04-14 14:45:19.000000000 -0700
+++ bfd/elf.c	2006-04-17 09:42:46.000000000 -0700
@@ -2158,8 +2158,25 @@ bfd_section_from_shdr (bfd *abfd, unsign
       break;
 
     default:
-      /* Check for any processor-specific section types.  */
-      return bed->elf_backend_section_from_shdr (abfd, hdr, name,
+      if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER)
+	{
+	  if ((hdr->sh_flags & SHF_ALLOC) != 0)
+	    {
+	      /* FIXME: How to properly handle allocated section
+		 reserved for applications?  */
+	      (*_bfd_error_handler)
+	       (_("%B: allocated section `%s' reserved for applications"),
+		abfd, name);
+	      return FALSE;
+	    }
+	  else
+	    /* Allow sections reserved for applications.  */
+	    return _bfd_elf_make_section_from_shdr (abfd, hdr, name,
+						    shindex);
+	}
+      else
+	/* Check for any processor-specific section types.  */
+	return bed->elf_backend_section_from_shdr (abfd, hdr, name,
 						 shindex);
     }
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