From: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
To: Max Filippov <jcmvbkbc@gmail.com>
Cc: gcc-patches@gcc.gnu.org, Ian Lance Taylor <ian@airs.com>
Subject: Re: [RFC 0/2] libbacktrace: add FDPIC support
Date: Mon, 27 May 2024 09:01:07 +0200 [thread overview]
Message-ID: <yddttijg2mk.fsf@CeBiTec.Uni-Bielefeld.DE> (raw)
In-Reply-To: <20240527065026.855607-1-jcmvbkbc@gmail.com> (Max Filippov's message of "Sun, 26 May 2024 23:50:24 -0700")
Hi Max,
> This is an RFC series that adds FDPIC ELF target support to
> libbacktrace.
>
> While debugging this I've noticed that there's no unwinding info for the
> libstdc++ version of libbacktrace, which made backtraces empty for me,
> both on xtensa-linux-uclibcfdpic and on regular xtensa-linux-uclibc.
> Adding -funwind-tables to the libstdc++ version of libbacktrace fixed
> that. Which makes me wonder how it works for other architectures?
it doesn't ;-( See PR libstdc++/111641 for details. There's a patch in
there, too.
Rainer
--
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Rainer Orth, Center for Biotechnology, Bielefeld University
next prev parent reply other threads:[~2024-05-27 7:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-27 6:50 Max Filippov
2024-05-27 6:50 ` [RFC 1/2] " Max Filippov
2024-06-11 16:54 ` Max Filippov
2024-05-27 6:50 ` [RFC 2/2] libstdc++-v3/src/libbacktrace: add -funwind-tables Max Filippov
2024-05-27 7:01 ` Rainer Orth [this message]
2024-05-27 7:12 ` [RFC 0/2] libbacktrace: add FDPIC support Max Filippov
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