linux-kernel - Re: [PATCH v2 1/2] arm/build: Warn on orphan section placement

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Message-ID: <202006261453.348213A71@keescook>
Date:   Fri, 26 Jun 2020 14:55:17 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Russell King <linux@...linux.org.uk>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <natechancellor@...il.com>,
        Will Deacon <will@...nel.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Eli Friedman <efriedma@...cinc.com>
Subject: Re: [PATCH v2 1/2] arm/build: Warn on orphan section placement

On Fri, Jun 26, 2020 at 02:36:44PM -0700, Nick Desaulniers wrote:
> If I enable CONFIG_THUMB2_KERNEL=y, is where things become
> interesting. llvm-objdump produces wildly different disassembly before
> vs after removing .ARM.attributes.  There's also lots of decode errors
> in the disassembly.

Yeah, at your earlier recommendation my v4 series will be keeping
.ARM.attributes. Thanks for verifying!

-- 
Kees Cook