From: Jason Merrill <jason@redhat.com>
To: Mark Mitchell <mark@codesourcery.com>
Cc: "Martin v. Loewis" <martin@v.loewis.de>,
David Abrahams <david.abrahams@rcn.com>,
"Ralf W. Grosse-Kunstleve" <rwgk@cci.lbl.gov>,
"gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
Subject: Re: Minimal GCC/Linux shared lib + EH bug example
Date: Sun, 12 May 2002 12:36:00 -0000 [thread overview]
Message-ID: <wvlheldjhjg.fsf@prospero.cambridge.redhat.com> (raw)
In-Reply-To: <88580000.1021230060@warlock.codesourcery.com> (Mark Mitchell's message of "Sun, 12 May 2002 12:01:00 -0700")
>>>>> "Mark" == Mark Mitchell <mark@codesourcery.com> writes:
> All that said, I'm surprised that throwing exceptions -- without crossing
> DSO boundaries -- doesn't work. I'd expect that would work almost by
> accident.
The problem in this case is that both DSOs link against the same shared
library. Both call a function in that library, which calls back into the
appropriate DSO, which throws an exception. For the first DSO loaded, the
catch clause in the library matches. For the second, it doesn't, as it's
checking against the typeinfo from the first.
I suspect that this is really a bug in the Linux dynamic loader, that the
typeinfo references should bind separately for the two DSOs, as David has
suggested. I've verified that this test works properly on Solaris, though
my investigation as to why must wait while I build a new gdb.
Jason
next prev parent reply other threads:[~2002-05-12 19:24 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <09b501c1f634$04747d80$6501a8c0@boostconsulting.com>
2002-05-12 4:57 ` Jason Merrill
2002-05-12 6:42 ` David Abrahams
2002-05-12 7:30 ` Jason Merrill
2002-05-12 7:31 ` David Abrahams
2002-05-12 8:07 ` Jason Merrill
2002-05-12 9:24 ` David Abrahams
2002-05-12 9:31 ` Martin v. Loewis
2002-05-12 9:34 ` David Abrahams
2002-05-12 12:17 ` Mark Mitchell
2002-05-12 12:24 ` Martin v. Loewis
2002-05-12 12:29 ` Mark Mitchell
2002-05-12 12:36 ` Jason Merrill [this message]
2002-05-12 12:37 ` Mark Mitchell
2002-05-12 16:55 ` Jason Merrill
2002-05-12 13:41 ` David Abrahams
2002-05-13 1:34 ` Martin v. Loewis
2002-05-13 2:05 ` Mark Mitchell
2002-05-13 5:44 ` David Abrahams
2002-05-13 16:58 ` Martin v. Loewis
2002-05-13 21:39 ` David Abrahams
2002-05-14 2:34 ` Martin v. Loewis
2002-05-14 13:12 ` David Abrahams
2002-05-14 14:17 ` Martin v. Loewis
2002-05-12 12:36 ` David Abrahams
2002-05-13 1:28 ` Martin v. Loewis
2002-05-13 5:00 ` David Abrahams
2002-05-13 16:50 ` Martin v. Loewis
2002-05-13 19:00 ` David Abrahams
2002-05-14 2:14 ` Martin v. Loewis
2002-05-14 6:07 ` David Abrahams
2002-05-14 13:53 ` Martin v. Loewis
2002-05-14 14:45 ` David Abrahams
2002-05-15 2:54 ` Martin v. Loewis
2002-05-14 15:28 ` Jason Merrill
2002-05-14 18:32 ` Daniel Jacobowitz
2002-05-15 1:34 ` Martin v. Loewis
2002-05-14 13:23 ` Sean Parent
2002-05-14 14:08 ` David Abrahams
2002-05-14 18:38 ` Sean Parent
2002-05-14 22:50 ` David Abrahams
2002-05-15 11:38 ` Sean Parent
2002-05-15 11:50 ` Matthew Austern
2002-05-15 12:29 ` Joe Buck
2002-05-15 17:26 ` David Abrahams
2002-05-15 20:21 ` H . J . Lu
2002-05-15 22:35 ` David Abrahams
2002-05-16 11:18 ` H . J . Lu
2002-05-18 16:53 ` David Abrahams
2002-05-18 17:55 ` Martin v. Loewis
2002-05-18 19:06 ` David Abrahams
2002-05-19 4:18 ` Duplicate data objects in shared libraries Martin v. Loewis
2002-05-19 5:00 ` David Abrahams
2002-05-19 5:14 ` Martin v. Loewis
2002-05-19 5:48 ` David Abrahams
2002-05-19 15:05 ` Martin v. Loewis
2002-05-20 1:42 ` Jason Merrill
2002-05-20 3:47 ` H . J . Lu
2002-05-20 4:08 ` Mark Mitchell
2002-05-20 9:55 ` Jason Merrill
2002-05-20 10:15 ` Mark Mitchell
2002-05-20 12:42 ` Jason Merrill
2002-05-20 12:53 ` Mark Mitchell
2002-05-20 13:23 ` Jason Merrill
2002-05-20 13:28 ` David Abrahams
2002-05-22 16:35 ` Jason Merrill
2002-05-22 21:46 ` David Abrahams
2002-05-22 23:05 ` Jason Merrill
[not found] ` <20020529130945.A16909@lucon.org>
[not found] ` <039401c20759$a3ba1400$6601a8c0@boostconsulting.com>
[not found] ` <wvl8z615rsz.fsf@prospero.cambridge.redhat.com>
[not found] ` <1022790116.22692.205.camel@myware.mynet>
2002-05-30 18:51 ` PATCH: Treat RTLD_LOCAL like Solaris (Re: Duplicate data objects in shared libraries) Jason Merrill
[not found] ` <wvlit54530i.fsf@prospero.cambridge.redhat.com>
2002-05-31 0:28 ` Jason Merrill
2002-05-31 0:39 ` Ulrich Drepper
2003-04-10 15:31 ` Jason Merrill
2003-04-10 15:32 ` H. J. Lu
2003-04-10 16:20 ` H. J. Lu
2002-05-20 7:42 ` Duplicate data objects in shared libraries David Abrahams
2002-05-20 9:34 ` Jason Merrill
2002-05-20 9:57 ` David Abrahams
2002-05-20 10:28 ` H . J . Lu
2002-05-20 13:49 ` Jason Merrill
2002-05-20 13:59 ` H . J . Lu
2002-05-20 14:17 ` Jason Merrill
2002-05-20 18:19 ` H . J . Lu
2002-05-20 14:32 ` David Abrahams
2002-05-20 14:32 ` David Abrahams
2002-05-20 15:31 ` Martin v. Loewis
2002-05-21 19:07 ` H . J . Lu
2002-05-22 1:46 ` Martin v. Loewis
2002-05-20 13:26 ` David Beazley
2002-05-20 13:57 ` H . J . Lu
2002-05-20 14:36 ` David Beazley
2002-05-20 15:50 ` Michael Matz
2002-05-18 19:13 ` Minimal GCC/Linux shared lib + EH bug example David Abrahams
2002-05-19 4:29 ` Martin v. Loewis
2002-05-19 5:10 ` David Abrahams
2002-05-19 14:48 ` Martin v. Loewis
2002-05-15 16:36 ` David Abrahams
2002-05-15 19:26 ` Jeff Sturm
2002-05-12 8:17 ` Martin v. Loewis
2002-05-14 15:37 Ralf W. Grosse-Kunstleve
2002-05-15 5:05 ` Martin v. Löwis
2002-05-16 0:16 ` Mark Mitchell
2002-05-16 4:35 ` Martin v. Löwis
2002-05-15 8:23 Ralf W. Grosse-Kunstleve
2002-05-15 8:32 ` David Abrahams
2002-05-15 10:44 ` Martin v. Löwis
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