From: Joel Brobecker <brobecker@adacore.com>
To: Randolph Chung <randolph@tausq.org>
Cc: gdb-patches@sources.redhat.com
Subject: Re: [RFC] Infinite backtraces...
Date: Fri, 03 Dec 2004 18:20:00 -0000 [thread overview]
Message-ID: <20041203182049.GF16491@adacore.com> (raw)
In-Reply-To: <20041203180324.GE6359@tausq.org>
> argh, i was wrong... the stub unwinder handles the case when pc == 0,
> and then it assumes that the rp doesn't get modified by default.
OK.
> there's also a bug in the outer __pthread_create_system frame; the stub
> unwinder doesn't set the rp appropriately. can you try the attached
> patch? it should convert your infinite backtrace into an error ;-)
I gave it a try. I see the error, but a bit too early. That's because
I have a stub in the middle of my call stack. Here is what I get now:
(gdb) bt
#0 simple.break_me () at simple.adb:27
#1 0x0000a2cc in simple.caller (<_task>=0x4001c3a0) at simple.adb:21
#2 0x0000a268 in simple__callerB___2 () at simple.adb:18
#3 0x0000a268 in simple__callerB___2 () at simple.adb:18
warning: Previous frame identical to this frame (corrupt stack?)
(this was with 6.3, do you think HEAD would behave better?)
--
Joel
next prev parent reply other threads:[~2004-12-03 18:20 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-02 22:46 Joel Brobecker
2004-12-02 23:13 ` Joel Brobecker
2004-12-03 2:43 ` Randolph Chung
2004-12-03 2:57 ` Joel Brobecker
2004-12-03 4:53 ` Randolph Chung
2004-12-03 19:36 ` Joel Brobecker
2004-12-03 18:03 ` Randolph Chung
2004-12-03 18:20 ` Joel Brobecker [this message]
2004-12-03 18:22 ` Randolph Chung
2004-12-06 7:25 ` Randolph Chung
2004-12-07 10:07 ` Joel Brobecker
2004-12-07 16:31 ` Randolph Chung
2004-12-07 16:37 ` Joel Brobecker
2004-12-07 16:52 ` Randolph Chung
2004-12-08 1:51 ` Randolph Chung
2004-12-12 16:36 ` [commit] Move zero PC check to frame.c; Was: " Andrew Cagney
2004-12-03 18:22 ` Joel Brobecker
2004-12-06 4:15 ` Randolph Chung
2004-12-07 9:40 ` Joel Brobecker
2004-12-03 18:28 ` Andrew Cagney
2004-12-03 18:49 ` Joel Brobecker
2004-12-03 19:26 ` Andrew Cagney
2004-12-03 20:19 ` Joel Brobecker
2004-12-03 21:44 ` Andrew Cagney
2004-12-03 22:16 ` Joel Brobecker
2004-12-03 22:23 ` Daniel Jacobowitz
2004-12-03 22:25 ` Joel Brobecker
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