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From: "telans at posteo dot de" <sourceware-bugzilla@sourceware.org>
To: debugedit@sourceware.org
Subject: [Bug debugedit/28728] Unknown DWARF DW_FORM_0x25 (DW_FORM_strx)
Date: Fri, 18 Feb 2022 07:41:05 +0000	[thread overview]
Message-ID: <bug-28728-13298-R5aozxWDER@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-28728-13298@http.sourceware.org/bugzilla/>

https://sourceware.org/bugzilla/show_bug.cgi?id=28728

James Beddek <telans at posteo dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |telans at posteo dot de

--- Comment #3 from James Beddek <telans at posteo dot de> ---
(In reply to Mark Wielaard from comment #2)
> (In reply to Vitaly Chikunov from comment #0)
> > When building Linux kernel with[1] CC=clang LLVM=1 and
> > CONFIG_DEBUG_INFO_DWARF5=y debugedit reports error when processing compiled
> > kernel modules, such as
> > 
> >   debugedit:
> > ./lib/modules/5.16.0+rc6.20211223-drm-tip-alt1/kernel/sound/usb/caiaq/snd-
> > usb-caiaq.ko: Unknown DWARF DW_FORM_0x25
> 
> That is DW_FORM_strx1, which is only partially supported by debugedit.
> Normally the DW_FORM_strx forms are only used when generating split DWARF
> (.dwo) files. Best workaround for now is to not use DWARF5 with llvm (which
> isn't the default for clang/llvm anyway).

DWARFv5 is now the default with the upcoming Clang 14.0.0 release:
https://github.com/llvm/llvm-project/blob/e80c52986e1bb3afa6a92c58b1cb897877923a66/clang/docs/ReleaseNotes.rst#dwarf-support-in-clang

At the moment debugedit warns for almost any binary compiled with Clang
14.0.0-rc1

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  parent reply	other threads:[~2022-02-18  7:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-27  7:23 [Bug debugedit/28728] New: Unknown DWARF DW_FORM_0x25 vt at altlinux dot org
2021-12-27  7:30 ` [Bug debugedit/28728] " vt at altlinux dot org
2021-12-27 10:40 ` [Bug debugedit/28728] Unknown DWARF DW_FORM_0x25 (DW_FORM_strx) mark at klomp dot org
2022-02-18  7:41 ` telans at posteo dot de [this message]
2022-02-18  7:47 ` telans at posteo dot de
2022-11-09  6:58 ` sam at gentoo dot org
2022-11-11  5:06 ` sam at gentoo dot org
2023-09-24 18:10 ` seppo.yliolli at gmail dot com
2023-12-06 14:39 ` mark at klomp dot org
2023-12-11 14:02 ` mark at klomp dot org
2024-04-27 11:50 ` vt at altlinux dot org
2024-05-15 11:29 ` mark at klomp dot org

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