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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/26095] New: gdb bug worked around in
 gcc/bb-reorder.c:pass_partition_blocks::gate
Date: Tue, 09 Jun 2020 09:14:44 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26095

            Bug ID: 26095
           Summary: gdb bug worked around in
                    gcc/bb-reorder.c:pass_partition_blocks::gate
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

Current GCC contains this workaround in bb-reorder.c:
...
          /* Workaround a bug in GDB where read_partial_die doesn't cope=20=
=20=20=20=20=20=20=20
             with DIEs with DW_AT_ranges, see PR81115.  */
          && !(in_lto_p && MAIN_NAME_P (DECL_NAME (fun->decl))));
...

The PR81115 is a typo, it actually refers to gcc PR 81155, as we can see fr=
om
the log message:
...
commit 8f72ce2cec8b8961f381995eb6e2c5de1cd0f3d3
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Fri Jan 12 19:20:49 2018 +0100

    re PR debug/81155 (Debug make check regressions in GCC 8.0)

            PR debug/81155
            * bb-reorder.c (pass_partition_blocks::gate): In lto don't
partition
            main to workaround a bug in GDB.

    From-SVN: r256592
...

The gcc PR (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D81155 ) discusse=
s a
GDB bug, but unfortunately it seems no GDB counterpart was filed to track i=
t to
completion.=20

So, I'm filing this PR for the specific purpose of acting as GDB counterpart
for the GCC PR.

--=20
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