From: Rich Felker <dalias@libc.org>
To: musl@lists.openwall.com
Subject: Re: GDB to debug threaded application
Date: Fri, 6 Apr 2018 13:22:10 -0400 [thread overview]
Message-ID: <20180406172210.GA3094@brightrain.aerifal.cx> (raw)
In-Reply-To: <c727f790-bcb9-9f7a-1764-b02d711ad158@gmail.com>
On Fri, Apr 06, 2018 at 06:33:35PM +0200, Micha Nelissen wrote:
> Hi all,
>
> I have built a cross-toolchain (x86-64 to arm, gcc 5.4.0) with musl
> (1.1.16) using buildroot (2017.02). I let buildroot build a gdb for
> the arm platform. It runs, but when I debug my application, gdb
> hangs after a thread is started. Can't interrupt it, have to kill
> -KILL my application from another ssh session.
>
> I noticed that there is a libthread_db.so in the glibc-based
> toolchain. Do I need something similar for musl? That
> libthread_db.so needs libc.so.6 (glibc) so I guess I can't use it
> as-is?
>
> Thanks for any pointers!
No, musl does not use libthread_db.so, but presence of a glibc version
of this library could break things badly. Make sure it's not being
built or present in any location gdb might search. Are you using a
remote/cross gdb (with gdbserver on the target) or local gdb?
Rich
next prev parent reply other threads:[~2018-04-06 17:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-06 16:33 Micha Nelissen
2018-04-06 17:22 ` Rich Felker [this message]
2018-04-06 21:00 ` Micha Nelissen
2018-04-06 21:22 ` Rich Felker
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