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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/23710] gdb is slow and memory hungry consuming debug
 generated with LTO by GCC
Date: Thu, 10 Jun 2021 22:59:48 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D23710

--- Comment #21 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom Tromey from comment #20)
> Tom --
>=20
> See https://sourceware.org/pipermail/gdb-patches/2021-June/179765.html
> I found out that if the test case from this patch is changed
> to use DW_LANG_C, it will fail.  (Of course I thinko'd that message
> and wrote C++, but the test already uses C++...)
>=20

You mean gdb.dwarf2/imported-unit-bp.exp? That test-case uses C, right?

> I also don't understand why the DWARF reader check is specific to C++.
> It seems like any import of a CU could be skipped, since that CU
> will be scanned separately anyway.
>=20

Tried to explain here (
https://sourceware.org/pipermail/gdb-patches/2021-June/179804.html ).  Also=
, I
tried to explain this in the commit log here (
https://sourceware.org/git/?p=3Dbinutils-gdb.git;a=3Dcommit;h=3D589902954da=
0d1dd140b33e578954746c9bfc374
).

> Furthermore, the skipping should probably also be done in the psymtab
> reader, not just the full reader.

Maybe, not sure yet.

--=20
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