linux-kernel - Re: [PATCH 5.15.y] KVM: arm64: nvhe: Fix build with profile optimization

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <Y8J6iSOVwGslj3jV@kroah.com>
Date:   Sat, 14 Jan 2023 10:48:57 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     stable@...r.kernel.org, Denis Nikitin <denik@...omium.org>,
        linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        Marc Zyngier <maz@...nel.org>
Subject: Re: [PATCH 5.15.y] KVM: arm64: nvhe: Fix build with profile
 optimization

On Thu, Jan 12, 2023 at 04:22:10PM -0800, Stephen Boyd wrote:
> From: Denis Nikitin <denik@...omium.org>
> 
> commit bde971a83bbff78561458ded236605a365411b87 upstream.
> 
> Kernel build with clang and KCFLAGS=-fprofile-sample-use=<profile> fails with:
> 
> error: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.tmp.o: Unexpected SHT_REL
> section ".rel.llvm.call-graph-profile"
> 
> Starting from 13.0.0 llvm can generate SHT_REL section, see
> https://reviews.llvm.org/rGca3bdb57fa1ac98b711a735de048c12b5fdd8086.
> gen-hyprel does not support SHT_REL relocation section.
> 
> Filter out profile use flags to fix the build with profile optimization.
> 
> Signed-off-by: Denis Nikitin <denik@...omium.org>
> Signed-off-by: Marc Zyngier <maz@...nel.org>
> Link: https://lore.kernel.org/r/20221014184532.3153551-1-denik@chromium.org
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> ---
> 
> I need this to properly compile 5.15.y stable kernels in the chromeos build
> system.

Now queued up, thanks.

greg k-h