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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: dwz@sourceware.org
Subject: [Bug default/25439] New: namespace DIE added to duplicate chain list
 (--odr-mode=basic)
Date: Wed, 01 Jan 2020 00:00:00 -0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D25439

            Bug ID: 25439
           Summary: namespace DIE added to duplicate chain list
                    (--odr-mode=3Dbasic)
           Product: dwz
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: default
          Assignee: nobody at sourceware dot org
          Reporter: vries at gcc dot gnu.org
                CC: dwz at sourceware dot org
  Target Milestone: ---

Starting commit 62e4949 "Fix reference from PU to CU (--odr-mode=3Dbasic)",=
 we
run into an abort in build_abbrevs_for_die with:
...
$ dwz -Lnone -lnone -o 1 Checker.so.debug --odr-mode=3Dbasic
...

This is a consequence of calling partition_found_dups with a die where
die->named_namespace =3D=3D 1 during mark_singletons, the function added in=
 the
offending commit.

This happens because a die:
...
 (gdb) call dump_die (die)
 4db7a86 O ffe1edf 0  imported_module
...
has a reference to a namespace:
...
(gdb) call dump_die (reft)
 4c3e954 X 9a045343 0 llvm namespace
...

--=20
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