From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: dwz@sourceware.org
Subject: [Bug default/25024] dwz: Multifile temporary files too large
Date: Tue, 01 Jan 2019 00:00:00 -0000 [thread overview]
Message-ID: <bug-25024-11298-LA73cm28E6@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-25024-11298@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=25024
--- Comment #8 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Jan Kratochvil from comment #7)
> Just the bug is dictated by the standard. I think it would need to switch
> DWZ to DWARF-5 as there is DW_FORM_ref_sup8; currently DW_FORM_GNU_*_alt are
> both 32-bit only.
You're right about the limitation of DW_FORM_GNU_*_alt, but AFAIU that's not
the boundary we're running into here.
In multifile mode, DWZ first processes one file at a time, optimizes it in
single-file mode, and dumps multifile-eligible DWARF into temporary files, one
per debug section. Subsequently, these temporary files are mmapped, and common
DWARF is copied to the multifile.
We run here into a size limit for the temporary files. The DW_FORM_GNU_*_alt
restriction limits the size of the multifile.
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next prev parent reply other threads:[~2019-10-03 7:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-01 0:00 [Bug default/25024] New: " jan.kratochvil at redhat dot com
2019-01-01 0:00 ` [Bug default/25024] " vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` jan.kratochvil at redhat dot com
2019-01-01 0:00 ` jan.kratochvil at redhat dot com
2019-01-01 0:00 ` vries at gcc dot gnu.org
2019-01-01 0:00 ` vries at gcc dot gnu.org [this message]
2019-01-01 0:00 ` jan.kratochvil at redhat dot com
2019-01-01 0:00 ` jan.kratochvil at redhat dot com
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