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Message-ID: <202508011754.BBDF043@keescook>
Date: Fri, 1 Aug 2025 17:55:27 -0700
From: Kees Cook <kees@...nel.org>
To: Nathan Chancellor <nathan@...nel.org>
Cc: Masahiro Yamada <masahiroy@...nel.org>,
Nicolas Schier <nicolas.schier@...ux.dev>,
linux-kbuild@...r.kernel.org,
Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
Bill Wendling <morbo@...gle.com>,
Justin Stitt <justinstitt@...gle.com>, linux-kernel@...r.kernel.org,
llvm@...ts.linux.dev, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] kbuild: Re-enable -Wunterminated-string-initialization
On Fri, Aug 01, 2025 at 05:43:16PM -0700, Nathan Chancellor wrote:
> On Fri, Aug 01, 2025 at 05:27:40PM -0700, Kees Cook wrote:
> > With the few remaining fixes now landed, we can re-enable the option
> > -Wunterminated-string-initialization for GCC. (Clang does not yet fully
> > understand the "nonstring" attribute.)
> >
> > Signed-off-by: Kees Cook <kees@...nel.org>
>
> What else does Clang need? Are bugs filed? I had requested support for
> multidimensional arrays, which Aaron implemented pretty quickly (and the
> tests seem pretty expansive):
>
> https://github.com/llvm/llvm-project/commit/e8ae77947154e10dbc05cbb95ec9e10d3b0be13e
Oh! I missed that commit. Did that end up in Clang 21? Let me try some
test builds with a more recent Clang...
--
Kees Cook
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