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Re: [patch 3.4/3.5] libffi & libjava port for hppa-linux
- From: Ulrich Weigand <weigand at i1 dot informatik dot uni-erlangen dot de>
- To: gcc-patches at gcc dot gnu dot org
- Cc: dave at hiauly1 dot hia dot nrc dot ca, doko at cs dot tu-berlin dot de, amodra at bigpond dot net dot au, java-patches at gcc dot gnu dot org
- Date: Wed, 24 Mar 2004 15:33:37 +0100 (CET)
- Subject: Re: [patch 3.4/3.5] libffi & libjava port for hppa-linux
>> Ulrich Weigand investigated that the Debian glibc is not recent, as
>> gcc-3.4 needs a glibc backtrace function using dw2 information.
>
>That's an issue that I have been wondering about. I get somewhat
>different test results using a glibc built with dw2 info than I do
>with the standard debian glibc build.
libjava needs a reliable backtrace () function, so whether or not
the glibc backtrace () uses DWARF-2 CFI can make a difference.
In any case, the s390 situation is probably not immediately applicable
to other archs, since we actually *disabled* the traditional stack
back-chains with gcc 3.4, so that old backtrace () routines definitely
cannot work any longer.
Bye,
Ulrich
--
Dr. Ulrich Weigand
weigand@informatik.uni-erlangen.de