linux-kernel - Re: [PATCH] x86/boot/compressed: Fix compressed kernel linking with lld

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Message-ID: <CAGXu5jJQRnPQDq6ZLrtCB-i0A_+AifY2me-BinuKz7LJU8=ePQ@mail.gmail.com>
Date:   Sun, 23 Feb 2020 14:00:15 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Fangrui Song <maskray@...gle.com>
Cc:     Arvind Sankar <nivedita@...m.mit.edu>,
        Borislav Petkov <bp@...en8.de>,
        Nathan Chancellor <natechancellor@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, X86 ML <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        clang-built-linux@...glegroups.com, Michael Matz <matz@...e.de>
Subject: Re: [PATCH] x86/boot/compressed: Fix compressed kernel linking with lld

On Sat, Feb 22, 2020 at 1:01 PM 'Fangrui Song' via Clang Built Linux
<clang-built-linux@...glegroups.com> wrote:
> https://github.com/torvalds/linux/commit/83a092cf95f28696ddc36c8add0cf03ac034897f
> added -Wl,--orphan-handling=warn to arch/powerpc/Makefile .
> x86 can follow if that is appropriate.

I've been playing with a series to do this, here:

https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/log/?h=linker/orphans/x86-arm

There's some work to be done still...

-- 
Kees Cook