linux-kernel - Re: [PATCH 2/2] ARM: Wrap '--pic-veneer' with ld-option

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Message-ID: <CAKwvOdk-YkXtOKs0SFc3=pEyoe5FaeNqW-JhJii6u34HUvdDNA@mail.gmail.com>
Date:   Mon, 7 Jan 2019 11:42:36 -0800
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Stefan Agner <stefan@...er.ch>
Cc:     Nathan Chancellor <natechancellor@...il.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Nicolas Pitre <nicolas.pitre@...aro.org>
Subject: Re: [PATCH 2/2] ARM: Wrap '--pic-veneer' with ld-option

On Sat, Dec 29, 2018 at 4:27 AM Stefan Agner <stefan@...er.ch> wrote:
>
> On 05.12.2018 20:45, Nathan Chancellor wrote:
> > On Wed, Dec 05, 2018 at 07:39:55PM +0100, Ard Biesheuvel wrote:
> >> On Wed, 5 Dec 2018 at 19:36, Nathan Chancellor <natechancellor@...il.com> wrote:
> >> >
> >> > On Wed, Dec 05, 2018 at 09:09:56AM +0100, Ard Biesheuvel wrote:
> >> > > (+ Arnd)
> >> > >
> >> > > On Wed, 5 Dec 2018 at 09:06, Nathan Chancellor <natechancellor@...il.com> wrote:
> >> > > >
> >> > > > On Wed, Dec 05, 2018 at 08:37:05AM +0100, Ard Biesheuvel wrote:
> >> > > > > On Wed, 5 Dec 2018 at 02:42, Nathan Chancellor <natechancellor@...il.com> wrote:
> >> > > > > >
> >> > > > > > This flag is not supported by lld:
> >> > > > > >
> >> > > > > >     ld.lld: error: unknown argument: --pic-veneer
> >> > > > > >
> >> > > > > > Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
> >> > > > >
> >> > > > > Hi Nate,
> >> > > > >
> >> > > > > Does this mean ld.lld is guaranteed to produce position independent
> >> > > > > veneers if you build kernels that are bigger than the typical range of
> >> > > > > a relative branch?

Just for the list, 2 patches to lld:
https://github.com/ClangBuiltLinux/linux/issues/286#issuecomment-452027802


-- 
Thanks,
~Nick Desaulniers