Ignore symtab descriptors and undefined symbols

These were already ignored for direct matches (commit 2867a2a13d186),
but we should also skip them in the wildcard-matching loop.

Noted in PR17360 by the a.out+0 warning for "__libc_start_main".

diff --git a/tapsets.cxx b/tapsets.cxx
index b6b871e63f808d2e8144d0fcd9327b913596b090..eda0e3c937da791270a68daf6976362da5e248ef 100644 (file)
--- a/tapsets.cxx
+++ b/tapsets.cxx
@@ -1108,8 +1108,9 @@ dwarf_query::query_module_symtab()
                ++iter)
             {
               fi = iter->second;
-              if (!null_die(&fi->die))
-                continue;       // already handled in query_module_dwarf()
+              if (!null_die(&fi->die) // already handled in query_module_dwarf()
+                  || fi->descriptor) // ppc opd (and also undefined symbols)
+                continue;
               if (dw.function_name_matches_pattern(fi->name, function_str_val))
                 query_symtab_func_info(*fi, this);
             }