Remove search path from -l:namespec DT_NEEDED

For libraries without a soname, -l:libfoo.so set DT_NEEDED to the search
dir plus filename, while gold and -lfoo just use the filename.  This
patch fixes the inconsistency.

	* ldlang.h (full_name_provided): New input flag.
	* ldlang.c (new_afile): Don't use lang_input_file_is_search_file_enum
	for -l:namespec.  Instead use lang_input_file_is_l_enum with
	full_name_provided flag.
	* ldlfile.c (ldfile_open_file_search): Don't complete lib name if
	full_name_provided flag is set.
	* emultempl/elf32.em (gld${EMULATION_NAME}_open_dynamic_archive):
	Handle full_name_provided libraries.  Tidy EXTRA_SHLIB_EXTENSION
	support.  Set DT_NEEDED for -l:namespec as namespec.
	* emultempl/aix.em (ppc_after_open_output): Handle full_name_provided.
	* emultempl/linux.em (gld${EMULATION_NAME}_open_dynamic_archive):
	Don't handle full_name_provided libraries.
	* emultempl/pe.em (gld${EMULATION_NAME}_open_dynamic_archive): Ditto.
	* emultempl/pep.em (gld${EMULATION_NAME}_open_dynamic_archive): Ditto.
	* emultempl/vms.em (gld${EMULATION_NAME}_open_dynamic_archive): Ditto.

ld/ChangeLog

@@ -1,3 +1,22 @@
+2014-03-14  Romain Geissler  <romain.geissler@amadeus.com>
+	    Alan Modra  <amodra@gmail.com>
+
+	* ldlang.h (full_name_provided): New input flag.
+	* ldlang.c (new_afile): Don't use lang_input_file_is_search_file_enum
+	for -l:namespec.  Instead use lang_input_file_is_l_enum with
+	full_name_provided flag.
+	* ldlfile.c (ldfile_open_file_search): Don't complete lib name if
+	full_name_provided flag is set.
+	* emultempl/elf32.em (gld${EMULATION_NAME}_open_dynamic_archive):
+	Handle full_name_provided libraries.  Tidy EXTRA_SHLIB_EXTENSION
+	support.  Set DT_NEEDED for -l:namespec as namespec.
+	* emultempl/aix.em (ppc_after_open_output): Handle full_name_provided.
+	* emultempl/linux.em (gld${EMULATION_NAME}_open_dynamic_archive):
+	Don't handle full_name_provided libraries.
+	* emultempl/pe.em (gld${EMULATION_NAME}_open_dynamic_archive): Ditto.
+	* emultempl/pep.em (gld${EMULATION_NAME}_open_dynamic_archive): Ditto.
+	* emultempl/vms.em (gld${EMULATION_NAME}_open_dynamic_archive): Ditto.
+
 2014-03-12  Alan Modra  <amodra@gmail.com>
 
 	* Makefile.in: Regenerate.

ld/emultempl/aix.em

@@ -1509,7 +1509,13 @@ gld${EMULATION_NAME}_open_dynamic_archive (const char *arch,
   if (!entry->flags.maybe_archive)
     return FALSE;
 
-  path = concat (search->name, "/lib", entry->filename, arch, ".a", NULL);
+  if (entry->flags.full_name_provided)
+    path = concat (search->name, "/", entry->filename,
+		   (const char *) NULL);
+  else
+    path = concat (search->name, "/lib", entry->filename, arch, ".a",
+		   (const char *) NULL);
+
   if (!ldfile_try_open_bfd (path, entry))
     {
       free (path);

ld/emultempl/elf32.em

@@ -1656,42 +1656,46 @@ gld${EMULATION_NAME}_open_dynamic_archive
 {
   const char *filename;
   char *string;
+  size_t len;
+  bfd_boolean opened = FALSE;
 
   if (! entry->flags.maybe_archive)
     return FALSE;
 
   filename = entry->filename;
-
+  len = strlen (search->name) + strlen (filename);
-  /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
+  if (entry->flags.full_name_provided)
-     is defined, but it does not seem worth the headache to optimize
-     away those two bytes of space.  */
-  string = (char *) xmalloc (strlen (search->name)
-			     + strlen (filename)
-			     + strlen (arch)
-#ifdef EXTRA_SHLIB_EXTENSION
-			     + strlen (EXTRA_SHLIB_EXTENSION)
-#endif
-			     + sizeof "/lib.so");
-
-  sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
-
-#ifdef EXTRA_SHLIB_EXTENSION
-  /* Try the .so extension first.  If that fails build a new filename
-     using EXTRA_SHLIB_EXTENSION.  */
-  if (! ldfile_try_open_bfd (string, entry))
     {
-      sprintf (string, "%s/lib%s%s%s", search->name,
+      len += sizeof "/";
-	       filename, arch, EXTRA_SHLIB_EXTENSION);
+      string = (char *) xmalloc (len);
-#endif
+      sprintf (string, "%s/%s", search->name, filename);
+    }
+  else
+    {
+      size_t xlen = 0;
 
-  if (! ldfile_try_open_bfd (string, entry))
+      len += strlen (arch) + sizeof "/lib.so";
+#ifdef EXTRA_SHLIB_EXTENSION
+      xlen = (strlen (EXTRA_SHLIB_EXTENSION) > 3
+	      ? strlen (EXTRA_SHLIB_EXTENSION) - 3
+	      : 0);
+#endif
+      string = (char *) xmalloc (len + xlen);
+      sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
+#ifdef EXTRA_SHLIB_EXTENSION
+      /* Try the .so extension first.  If that fails build a new filename
+	 using EXTRA_SHLIB_EXTENSION.  */
+      opened = ldfile_try_open_bfd (string, entry);
+      if (!opened)
+	strcpy (string + len - 4, EXTRA_SHLIB_EXTENSION);
+#endif
+    }
+
+  if (!opened && !ldfile_try_open_bfd (string, entry))
     {
       free (string);
       return FALSE;
     }
-#ifdef EXTRA_SHLIB_EXTENSION
-    }
-#endif
 
   entry->filename = string;
 
@@ -1716,7 +1720,8 @@ gld${EMULATION_NAME}_open_dynamic_archive
       /* Rather than duplicating the logic above.  Just use the
 	 filename we recorded earlier.  */
 
-      filename = lbasename (entry->filename);
+      if (!entry->flags.full_name_provided)
+        filename = lbasename (entry->filename);
       bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
     }
 

ld/emultempl/linux.em

@@ -61,7 +61,7 @@ gld${EMULATION_NAME}_open_dynamic_archive
 {
   char *string;
 
-  if (! entry->flags.maybe_archive)
+  if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
     return FALSE;
 
   string = (char *) xmalloc (strlen (search->name)

ld/emultempl/pe.em

@@ -2108,7 +2108,7 @@ gld_${EMULATION_NAME}_open_dynamic_archive
   unsigned int i;
 
 
-  if (! entry->flags.maybe_archive)
+  if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
     return FALSE;
 
   filename = entry->filename;

ld/emultempl/pep.em

@@ -1879,7 +1879,7 @@ gld_${EMULATION_NAME}_open_dynamic_archive
   unsigned int i;
 
 
-  if (! entry->flags.maybe_archive)
+  if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
     return FALSE;
 
   filename = entry->filename;

ld/emultempl/vms.em

@@ -57,7 +57,7 @@ gld${EMULATION_NAME}_open_dynamic_archive (const char *arch ATTRIBUTE_UNUSED,
 {
   char *string;
 
-  if (! entry->flags.maybe_archive)
+  if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
     return FALSE;
 
   string = (char *) xmalloc (strlen (search->name)

ld/ldfile.c

@@ -367,7 +367,7 @@ ldfile_open_file_search (const char *arch,
 	    return TRUE;
 	}
 
-      if (entry->flags.maybe_archive)
+      if (entry->flags.maybe_archive && !entry->flags.full_name_provided)
 	string = concat (search->name, slash, lib, entry->filename,
 			 arch, suffix, (const char *) NULL);
       else

ld/ldlang.c

@@ -1063,13 +1063,6 @@ new_afile (const char *name,
   p->flags.whole_archive = input_flags.whole_archive;
   p->flags.sysrooted = input_flags.sysrooted;
 
-  if (file_type == lang_input_file_is_l_enum
-      && name[0] == ':' && name[1] != '\0')
-    {
-      file_type = lang_input_file_is_search_file_enum;
-      name = name + 1;
-    }
-
   switch (file_type)
     {
     case lang_input_file_is_symbols_only_enum:
@@ -1083,7 +1076,13 @@ new_afile (const char *name,
       p->local_sym_name = name;
       break;
     case lang_input_file_is_l_enum:
-      p->filename = name;
+      if (name[0] == ':' && name[1] != '\0')
+        {
+          p->filename = name + 1;
+          p->flags.full_name_provided = TRUE;
+        }
+      else
+        p->filename = name;
       p->local_sym_name = concat ("-l", name, (const char *) NULL);
       p->flags.maybe_archive = TRUE;
       p->flags.real = TRUE;

ld/ldlang.h

@@ -235,6 +235,9 @@ struct lang_input_statement_flags
   /* 1 means this file was specified in a -l option.  */
   unsigned int maybe_archive : 1;
 
+  /* 1 means this file was specified in a -l:namespec option.  */
+  unsigned int full_name_provided : 1;
+
   /* 1 means search a set of directories for this file.  */
   unsigned int search_dirs : 1;