From: Joel Brobecker <brobecker@adacore.com>
To: Luis Machado <lgustavo@codesourcery.com>
Cc: "'gdb-patches@sourceware.org'" <gdb-patches@sourceware.org>
Subject: Re: checked in: Re: RFC: solib.c:solib_map_sections so->so_name clobbering
Date: Sat, 26 Oct 2013 04:29:00 -0000 [thread overview]
Message-ID: <20131026042902.GE4769@adacore.com> (raw)
In-Reply-To: <526B2A53.7080905@codesourcery.com>
> >So it looks like we've lost information about the shared library's path
> >on the host, which may not be a big deal for CLI GDB, but may confuse
> >consumers of MI output.
Agreed.
Can you also check the output of "info shared" in GDB/CLI mode?
I suspect that you might have a change in behavior there as well.
Whether this change is actually a Good Thing or not, is unclear,
as the manual does not say whether the names are expected to be
host-side paths, or target-side paths.
> >I gave this a quick thought, but reverting the change seemed like the
> >most obvious solution.
> >
> >But since this change affects darwin, maybe Joel has a different idea?
This would also affect AIX.
It might probably need more thought, but at first sight, I am wondering
whether the real issue is that the solib backend created an entry
where "so_name" does not match the field description:
/* Shared object file name, expanded to something GDB can open. */
My suspicion is that the bfd_open callback takes care of the path
translation, so the backend was allowing itself to defer it. I am
not sure how difficult it would be to move that part to each backend.
Reverting the patch would be a real issue, because it would mean
that any given solib backend cannot set the so_name, and commands
such as "info shared" would print a bogus shared library name.
Nevertheless, if we did revert it, I think we can work around
the issue by using the same trick as the one we used for the 7.6
branch IIRC.
--
Joel
next prev parent reply other threads:[~2013-10-26 4:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-26 2:30 Luis Machado
2013-10-26 2:35 ` Luis Machado
2013-10-26 4:29 ` Joel Brobecker [this message]
2013-10-27 2:46 ` Luis Machado
2013-10-28 11:39 ` Joel Brobecker
2013-12-04 16:59 ` Joel Brobecker
2013-12-15 10:02 ` Joel Brobecker
-- strict thread matches above, loose matches on Subject: below --
2012-07-18 19:34 [PATCH 02/10] clean up allocation of bfd filenames Tom Tromey
2013-03-28 12:29 ` RFC: solib.c:solib_map_sections so->so_name clobbering (was: [PATCH 02/10] clean up allocation of bfd filenames) Joel Brobecker
2013-03-28 19:12 ` RFC: solib.c:solib_map_sections so->so_name clobbering Tom Tromey
2013-03-29 1:59 ` Joel Brobecker
2013-04-11 4:03 ` checked in: " Joel Brobecker
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