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From: "hjl.tools at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/26151] Add ET_* markers for debug files, and
 enhance ldd (ld.so) to use them.
Date: Mon, 22 Jun 2020 20:29:50 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26151

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Carlos O'Donell from comment #1)
> Other issues to consider at the same time:
>=20
> (1) Kernel objects.
> - In Solaris these have special markup to avoid reading them as-if they w=
ere
> plain ET_REL objects.
>=20
> (2) dwz multi files are also ET_REL.
>=20
> One of the proposals for DWARFv5 is Split DWARF Objects (DWO) which is
> already implemented in some parts of the GNU toolchain.
>=20
> https://gcc.gnu.org/wiki/DebugFission
> http://dwarfstd.org/ShowIssue.php?issue=3D130313.4
>=20
> This would leave some parts of the DWARF info in the .dwo (ET_REL) file, =
so
> the linker doesn't have to process it. Later these .dwo would be packaged
> together in a .dwp file for use with debuggers.
>=20
> ---
>=20
> In the case of (1) it's a distinct issue that needs a new markup. Solaris
> uses DF_1_KMOD to mark kernel modules. This means that with
> https://docs.oracle.com/cd/E88353_01/html/E37839/ld-1.html you can use -z
> type to say: exec, kmod, reloc, shared, pie, and static. That means you
> don't have to guess.

I prefer DF_1_XXX over ET_XXX.

--=20
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