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Date: Wed, 9 Dec 2020 10:07:08 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Fāng-ruì Sòng <maskray@...gle.com>
Cc: Sami Tolvanen <samitolvanen@...gle.com>, Masahiro Yamada <masahiroy@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>, Will Deacon <will@...nel.org>,
Josh Poimboeuf <jpoimboe@...hat.com>, Peter Zijlstra <peterz@...radead.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Paul E. McKenney" <paulmck@...nel.org>,
Kees Cook <keescook@...omium.org>, Nick Desaulniers <ndesaulniers@...gle.com>,
clang-built-linux <clang-built-linux@...glegroups.com>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>,
linux-arch <linux-arch@...r.kernel.org>,
Linux ARM <linux-arm-kernel@...ts.infradead.org>,
Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, linux-pci <linux-pci@...r.kernel.org>
Subject: Re: [PATCH v8 00/16] Add support for Clang LTO
On Wed, Dec 9, 2020 at 6:23 AM 'Fāng-ruì Sòng' via Clang Built Linux
<clang-built-linux@...glegroups.com> wrote:
>
> On Tue, Dec 8, 2020 at 1:02 PM Arnd Bergmann <arnd@...nel.org> wrote:
> >
> > On Tue, Dec 8, 2020 at 9:59 PM Arnd Bergmann <arnd@...nel.org> wrote:
> > >
> > > Attaching the config for "ld.lld: error: Never resolved function from
> > > blockaddress (Producer: 'LLVM12.0.0' Reader: 'LLVM 12.0.0')"
> >
> > And here is a new one: "ld.lld: error: assignment to symbol
> > init_pg_end does not converge"
>
> This is interesting. I changed the symbol assignment to a separate
> loop in https://reviews.llvm.org/D66279
> Does raising the limit help? Sometimes the kernel linker script can be
> rewritten to be more friendly to the linker...
If that requires rebuilding lld, testing it is beyond what I can help with
right now. Hopefully someone can reproduce it with my .config.
Arnd
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