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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/29334] [gdb, debug-types, debug-names] segfault in
 dwarf2_per_objfile::symtab_set_p
Date: Fri, 08 Jul 2022 07:28:33 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29334

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
Yep, that fixes it:
...
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index 23fe5679cbd..9f92b420645 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -4991,7 +4991,11 @@ dw2_debug_names_iterator::next ()
                         objfile_name (objfile));
              continue;
            }
-         per_cu =3D per_bfd->get_cu (ull + per_bfd->tu_stats.nr_tus);
+         {
+           int nr_cus =3D (per_bfd->all_comp_units.size ()
+                         - per_bfd->tu_stats.nr_tus);
+           per_cu =3D per_bfd->get_cu (nr_cus + ull);
+         }
          break;
        case DW_IDX_die_offset:
          /* In a per-CU index (as opposed to a per-module index), index
...

--=20
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