File gdb-gnat-dwarf-crash-3of3.patch of Package gdb.783
Subject: [patch] gdb_assert -> complaint for weird DWARF

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PR 16581:
	GDB crash on inherit_abstract_dies infinite recursion

fixed crash from an infinite recursion.  But in rare cases the new code can
now gdb_assert() due to weird DWARF file.

I do not yet fully understand why the DWARF is as it is but just GDB should
never crash due to invalid DWARF anyway.  The "invalid" DWARF I see only in
Fedora GCC build, not in FSF GCC build, more info at:


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2014-02-24  Jan Kratochvil  <>

	* dwarf2read.c (process_die): Change gdb_assert to complaint.

diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 3eaa0b1..71f5d34 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -8029,7 +8029,13 @@ process_die (struct die_info *die, struct dwarf2_cu *cu)
   struct cleanup *in_process;
   /* We should only be processing those not already in process.  */
-  gdb_assert (!die->in_process);
+  if (die->in_process)
+    {
+      complaint (&symfile_complaints,
+		 _("DIE at 0x%x attempted to be processed twice"),
+		 die->offset.sect_off);
+      return;
+    }
   die->in_process = 1;
   in_process = make_cleanup (reset_die_in_process,die);

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