From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C49FD3CE493 for ; Wed, 18 Mar 2026 16:17:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773850662; cv=none; b=jZ+perna8IBme41igUJwP1Vt0VsskWVlqotQGWZvtNSw4uaYGJbJDUe2utyEuPXXnIeBjyg5e9e/I6uH4doSEmuCRgwVu4EqmJQKTrDE1IBHpZ4dlMwTYvOEfkU1hBVHc2lvMcnORSCg3CD/lm/9O9izTaGDCBYwkYbd5njjHeU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773850662; c=relaxed/simple; bh=Bo52D58UsXuV9CfbcnSZAWJO48Gf2S8WpU8ex4R1/Uc=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=SIw6JcnpwPOB2+orXtNzRC4QWXZEYocTIwul14aC4nhDUQZpiYu/5w8eY3VBb4dfdgzILN7izsvd7PfULpYYq0HpBNW9n0B3ppery9osQ0X8cBQyvHHxrAdSlpaNrNFY5XCxGse03Sm5NKfjZlFOUQcj+v5fvZS6+YF+RZhJ5rY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZwGqwq3O; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZwGqwq3O" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2343C19421; Wed, 18 Mar 2026 16:17:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773850662; bh=Bo52D58UsXuV9CfbcnSZAWJO48Gf2S8WpU8ex4R1/Uc=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=ZwGqwq3Ooj9M5la0SvOCk8bMdFKodFSNuvaATXhAd0PAyUSTQ9zph697MKidd6Cm9 bET3NO8SqFZsAN9C60U5TQI2RwSJexSHsHLixxYnZN/vNydB+kuBRbFMEJkhvY3NWQ 1AbLwqfI7i5fNxa3hT4l7jyck18a4HTfmy+2On1qdv3fVn/7/RX8jHyPg5zJ+pjWsF VTAlC4plDua88rjbCkzDPEUJv9lvKtTRun1v+vSSPLTZtPkuf2pSf7PDCaEnOPs8Ex sLNkQLI+oZYahJrEFW5fRwEUhzWOMVjyPPyc9042BmBFzU8Rtxl306xEC2Q9ND4Qv4 5IfSBrLF5lz4g== From: Thomas Gleixner To: Thomas =?utf-8?Q?Wei=C3=9Fschuh?= Cc: LKML , Mathieu Desnoyers , =?utf-8?Q?Andr=C3=A9?= Almeida , Sebastian Andrzej Siewior , Carlos O'Donell , Peter Zijlstra , Florian Weimer , Rich Felker , Torvald Riegel , Darren Hart , Ingo Molnar , Davidlohr Bueso , Arnd Bergmann , "Liam R . Howlett" Subject: Re: [patch 8/8] x86/vdso: Implement __vdso_futex_robust_try_unlock() In-Reply-To: <20260317120032-5d3d8bb8-27af-4380-9f82-5a132d84a0af@linutronix.de> References: <20260316162316.356674433@kernel.org> <20260316164951.484640267@kernel.org> <20260317081606-6b19f6a3-34e5-4056-9b8b-e9b90028b960@linutronix.de> <87bjgmokb0.ffs@tglx> <20260317120032-5d3d8bb8-27af-4380-9f82-5a132d84a0af@linutronix.de> Date: Wed, 18 Mar 2026 17:17:38 +0100 Message-ID: <87ikatm7rx.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Tue, Mar 17 2026 at 12:17, Thomas Wei=C3=9Fschuh wrote: >> Due to my pretty limited userspace DSO knowledge that was the best I >> came up with. If you have a better idea, please let me know. > > I would have expected GDB to be able to use the separate vDSO debugging > symbols to find these symbols. So far I was not able to make it work, > but I blame my limited GDB knowledge. I got it "working" by manually loading vdso64.so.dbg at the right offset, which only took about 10 attempts to get it right. Then you can use actual local symbols. vdso2c picks them up correctly too.