From: Szabolcs Nagy <szabolcs.nagy@arm.com>
To: Florian Weimer <fweimer@redhat.com>,
Abhijit Ray Chaudhury <abhijit.ray.chaudhury@gmail.com>
Cc: Abhijit Ray Chaudhury via Libc-help <libc-help@sourceware.org>
Subject: Re: Does glibc support remote process backtracing
Date: Mon, 11 Dec 2023 15:50:35 +0000 [thread overview]
Message-ID: <ZXcvywlv+ao53MYs@arm.com> (raw)
In-Reply-To: <87bkaxt82q.fsf@oldenburg.str.redhat.com>
The 12/11/2023 10:14, Florian Weimer via Libc-help wrote:
> * Abhijit Ray Chaudhury:
> > Hi Florian,
> >
> > Thanks a lot for replying. I need to do remote stack tracing , for which I am using libunwind-ptrace
> > . The problem is it does not work on VDSOs . It treats VDSO memory mapping entry in
> > /proc/<pid>/maps as a file and tries to open it and subsequently fails.
> > I tried mailing in libunwind-dev, but it seemed dormant .
> >
> > I need a library which works on both arm and x86_64 , do you think elfutils would be a good option
> > ?
>
> The AArch64 vDSO did not have accurate unwinding information in the
> past. We've got a Fedora bug for this:
>
> kernel: vDSO lacks unwind information on aarch64
> <https://bugzilla.redhat.com/show_bug.cgi?id=2044483>
>
> I don't know if this has been fixed since then.
i believe it is not fixed.
prev parent reply other threads:[~2023-12-11 15:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-25 6:02 Abhijit Ray Chaudhury
2023-11-27 9:20 ` Florian Weimer
2023-11-28 7:35 ` Abhijit Ray Chaudhury
2023-12-11 9:14 ` Florian Weimer
2023-12-11 15:50 ` Szabolcs Nagy [this message]
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