2008-06-09  Andreas Schwab  <schwab@suse.de>

	* opncls.c (find_separate_debug_file): Use the canonical absolute
	directory of the bfd filename for finding the debug file in the
	global debugfile directory.

--- bfd/opncls.c.~1.52.~	2008-03-28 10:38:17.000000000 +0100
+++ bfd/opncls.c	2008-06-09 17:06:46.000000000 +0200
@@ -1,6 +1,6 @@
 /* opncls.c -- open and close a BFD.
    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
-   2001, 2002, 2003, 2004, 2005, 2006, 2007
+   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
 
    Written by Cygnus Support.
@@ -1224,9 +1224,10 @@ find_separate_debug_file (bfd *abfd, con
   char *basename;
   char *dir;
   char *debugfile;
+  char *canon_dir;
   unsigned long crc32;
-  int i;
   size_t dirlen;
+  size_t canon_dirlen;
 
   BFD_ASSERT (abfd);
   if (debug_file_directory == NULL)
@@ -1263,8 +1264,12 @@ find_separate_debug_file (bfd *abfd, con
   memcpy (dir, abfd->filename, dirlen);
   dir[dirlen] = '\0';
 
+  canon_dir = lrealpath (dir[0] != '\0' ? dir : ".");
+  canon_dirlen = strlen (canon_dir);
+
   debugfile = bfd_malloc (strlen (debug_file_directory) + 1
-			  + dirlen
+			  + (canon_dirlen + 1 > dirlen
+			     ? canon_dirlen + 1 : dirlen)
 			  + strlen (".debug/")
 			  + strlen (basename)
 			  + 1);
@@ -1272,6 +1277,7 @@ find_separate_debug_file (bfd *abfd, con
     {
       free (basename);
       free (dir);
+      free (canon_dir);
       return NULL;
     }
 
@@ -1283,6 +1289,7 @@ find_separate_debug_file (bfd *abfd, con
     {
       free (basename);
       free (dir);
+      free (canon_dir);
       return debugfile;
     }
 
@@ -1295,29 +1302,33 @@ find_separate_debug_file (bfd *abfd, con
     {
       free (basename);
       free (dir);
+      free (canon_dir);
       return debugfile;
     }
 
   /* Then try in the global debugfile directory.  */
   strcpy (debugfile, debug_file_directory);
-  i = strlen (debug_file_directory) - 1;
-  if (i > 0
-      && debug_file_directory[i] != '/'
-      && dir[0] != '/')
+  dirlen = strlen (debug_file_directory) - 1;
+  if (dirlen > 0
+      && debug_file_directory[dirlen] != '/'
+      && canon_dir[0] != '/')
     strcat (debugfile, "/");
-  strcat (debugfile, dir);
+  strcat (debugfile, canon_dir);
+  strcat (debugfile, "/");
   strcat (debugfile, basename);
 
   if (separate_debug_file_exists (debugfile, crc32))
     {
       free (basename);
       free (dir);
+      free (canon_dir);
       return debugfile;
     }
 
   free (debugfile);
   free (basename);
   free (dir);
+  free (canon_dir);
   return NULL;
 }