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Re: GCC 3.3 Prelease broken on s390
- From: Ulrich Weigand <weigand at immd1 dot informatik dot uni-erlangen dot de>
- To: rth at redhat dot com (Richard Henderson)
- Cc: weigand at immd1 dot informatik dot uni-erlangen dot de (Ulrich Weigand), mark at codesourcery dot com, gcc at gcc dot gnu dot org
- Date: Wed, 7 May 2003 02:18:28 +0200 (MET DST)
- Subject: Re: GCC 3.3 Prelease broken on s390
Richard Henderson wrote:
> Which begs the question of why my patch affects anything, because we're
> *still* dealing with a difference. This I need to understand. Can you
> debug what's going on?
Because the new CFA is computed incorrectly by uw_update_context_1.
It should be reading the saved r15 value from the save area, and
add the offset. Instead, it now uses the old CFA value, and adds
the offset -- which results in a different value.
Bye,
Ulrich
--
Dr. Ulrich Weigand
weigand@informatik.uni-erlangen.de