New parameter "debug symbol-lookup".

gdb/ChangeLog:

	New parameter "debug symbol-lookup".
	* NEWS: Mention it.
	* cp-namespace.c (cp_lookup_symbol_imports_or_template): Add debug
	output.
	(cp_lookup_symbol_namespace, cp_lookup_symbol_nonlocal): Ditto.
	(cp_lookup_nested_symbol): Ditto.
	* language.c (language_lookup_primitive_type_by_name): Add debug
	output.
	* minsyms.c (lookup_minimal_symbol): Add debug output.
	* objfiles.c (objfile_debug_name): Moved here, and renamed ...
	* symfile-debug.c (debug_objfile_name): ... from here.  All callers
	updated.
	* objfiles.h (objfile_debug_name): Declare.
	* symtab.h (symbol_lookup_debug): Declare.
	* symtab.c (symbol_lookup_debug): New global.
	(lookup_language_this): Add debug output.
	(lookup_symbol_aux, lookup_symbol_in_block): Ditto.
	(lookup_symbol_in_objfile_symtabs, lookup_symbol_via_quick_fns): Ditto.
	(lookup_symbol_in_static_block, lookup_symbol_in_objfile): Ditto.
	(_initialize_symtab): Add new parameter "debug symbol-lookup".

gdb/doc/ChangeLog:

	* gdb.texinfo (Debugging Output): Document "debug symbol-lookup".

1 files changed, 19 insertions, 1 deletions

diff --git a/gdb/language.c b/gdb/language.c
index 83dd4d5..8d476d3 100644
--- a/gdb/language.c
+++ b/gdb/language.c
@@ -996,13 +996,31 @@ language_lookup_primitive_type_by_name (const struct language_defn *la,
 					      language_gdbarch_data);
   struct type *const *p;
 
+  if (symbol_lookup_debug)
+    {
+      fprintf_unfiltered (gdb_stdlog,
+			  "language_lookup_primitive_type_by_name"
+			  " (%s, %s, %s)",
+			  la->la_name, host_address_to_string (gdbarch), name);
+    }
+
   for (p = ld->arch_info[la->la_language].primitive_type_vector;
        (*p) != NULL;
        p++)
     {
       if (strcmp (TYPE_NAME (*p), name) == 0)
-	return (*p);
+	{
+	  if (symbol_lookup_debug)
+	    {
+	      fprintf_unfiltered (gdb_stdlog, " = %s\n",
+				  host_address_to_string (*p));
+	    }
+	  return (*p);
+	}
     }
+
+  if (symbol_lookup_debug)
+    fprintf_unfiltered (gdb_stdlog, " = NULL\n");
   return (NULL);
 }