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Message-ID: <CABCJKud-4p2CnTyC5qjREL+Z_q8sD6cYE-0QU7poVKALgoVcNQ@mail.gmail.com>
Date: Wed, 9 Dec 2020 08:09:18 -0800
From: Sami Tolvanen <samitolvanen@...gle.com>
To: Arnd Bergmann <arnd@...nel.org>
Cc: 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 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"
Thanks for these. I can reproduce the "Never resolved function from
blockaddress" issue with full LTO, but I couldn't reproduce this one
with ToT Clang, and the config doesn't have LTO enabled:
$ grep LTO 0x2824F594_defconfig
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
Is this the correct config file?
Sami
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