From: Randolph Chung <randolph@tausq.org>
To: Mark Kettenis <kettenis@gnu.org>
Cc: brobecker@adacore.com, gdb-patches@sources.redhat.com
Subject: Re: [RFC/RFA/hppa] unwind pc in bottom frame using correct register
Date: Wed, 08 Dec 2004 04:33:00 -0000 [thread overview]
Message-ID: <20041208032725.GI6359@tausq.org> (raw)
In-Reply-To: <200412041126.iB4BQsd8000662@elgar.sibelius.xs4all.nl>
> Anyway, the problems Joel sees can be fixed by explicitly setting
> "flags" to zero in all unwound frames. This somehow seems the correct
> approach since this "flags" register is only meaningful in the
> sentinel frame. This is implemented by the attached patch (wich will
> no longer apply after Randolph's recent change, but you get the idea).
hrm, something is broken. on hppa64-hp-hpux11.11 this is causing a lot
of unwinding failures. the hpux unwind_pc method is getting flags that
have the magic "2" bit set, so it gets the pc from 31 instead of the
pcoqh register.
i don't quite yet understand why this is happening. if i do "print
$flags" on frame #0 the value seems reasonable.
randolph
--
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
next prev parent reply other threads:[~2004-12-08 3:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-04 5:31 Joel Brobecker
2004-12-04 7:51 ` Randolph Chung
2004-12-04 8:46 ` Joel Brobecker
2004-12-04 10:53 ` Randolph Chung
2004-12-04 12:42 ` Mark Kettenis
2004-12-08 4:33 ` Randolph Chung [this message]
2004-12-08 8:21 ` Randolph Chung
2004-12-08 22:20 ` Mark Kettenis
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