New parameter "debug symbol-lookup".

[thirdparty/binutils-gdb.git] / gdb / minsyms.c

diff --git a/gdb/minsyms.c b/gdb/minsyms.c
index 2463be441e0ab848fe76c306b96668912b084f1a..2a421fcf433ccec28bb65d5151266d4736bf7d66 100644 (file)
--- a/gdb/minsyms.c
+++ b/gdb/minsyms.c
@@ -203,6 +203,14 @@ lookup_minimal_symbol (const char *name, const char *sfile,
             and the second over the demangled hash table.  */
         int pass;
 
+       if (symbol_lookup_debug)
+         {
+           fprintf_unfiltered (gdb_stdlog,
+                               "lookup_minimal_symbol (%s, %s, %s)\n",
+                               name, sfile != NULL ? sfile : "NULL",
+                               objfile_debug_name (objfile));
+         }
+
         for (pass = 1; pass <= 2 && found_symbol.minsym == NULL; pass++)
            {
             /* Select hash list according to pass.  */
@@ -282,13 +290,42 @@ lookup_minimal_symbol (const char *name, const char *sfile,
 
   /* External symbols are best.  */
   if (found_symbol.minsym != NULL)
-    return found_symbol;
+    {
+      if (symbol_lookup_debug)
+       {
+         fprintf_unfiltered (gdb_stdlog,
+                             "lookup_minimal_symbol (...) = %s"
+                             " (external)\n",
+                             host_address_to_string (found_symbol.minsym));
+       }
+      return found_symbol;
+    }
 
   /* File-local symbols are next best.  */
   if (found_file_symbol.minsym != NULL)
-    return found_file_symbol;
+    {
+      if (symbol_lookup_debug)
+       {
+         fprintf_unfiltered (gdb_stdlog,
+                             "lookup_minimal_symbol (...) = %s"
+                             " (file-local)\n",
+                             host_address_to_string
+                               (found_file_symbol.minsym));
+       }
+      return found_file_symbol;
+    }
 
   /* Symbols for shared library trampolines are next best.  */
+  if (symbol_lookup_debug)
+    {
+      fprintf_unfiltered (gdb_stdlog,
+                         "lookup_minimal_symbol (...) = %s%s\n",
+                         trampoline_symbol.minsym != NULL
+                         ? host_address_to_string (trampoline_symbol.minsym)
+                         : "NULL",
+                         trampoline_symbol.minsym != NULL
+                         ? " (trampoline)" : "");
+    }
   return trampoline_symbol;
 }