linux-kernel - Re: [PATCH] kasan: simplify and clarify Makefile

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CANiq72mCscukQTu7tnK0kXHg05AiMtB8sHRDTvgjWgcMySbhvQ@mail.gmail.com>
Date: Wed, 14 Aug 2024 17:36:56 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: andrey.konovalov@...ux.dev
Cc: Marco Elver <elver@...gle.com>, Matthew Maurer <mmaurer@...gle.com>, 
	Andrey Konovalov <andreyknvl@...il.com>, Alexander Potapenko <glider@...gle.com>, 
	Dmitry Vyukov <dvyukov@...gle.com>, Andrey Ryabinin <ryabinin.a.a@...il.com>, kasan-dev@...glegroups.com, 
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org, 
	Miguel Ojeda <ojeda@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kasan: simplify and clarify Makefile

On Wed, Aug 14, 2024 at 12:40 AM <andrey.konovalov@...ux.dev> wrote:
>
> Signed-off-by: Andrey Konovalov <andreyknvl@...il.com>

It is easier to read now, and indeed GCC 5.1+ and LLVM 13+ both
support the flags, so `CFLAGS_KASAN_SHADOW` can't be empty.

> +# First, enable -fsanitize=kernel-address together with providing the shadow
> +# mapping offset, as for GCC, -fasan-shadow-offset fails without -fsanitize
> +# (GCC accepts the shadow mapping offset via -fasan-shadow-offset instead of
> +# a normal --param). Instead of ifdef-checking the compiler, rely on cc-option.

I guess "a normal --param" means here that it is the usual way to
tweak the rest of the KASAN parameters, right?

> +# Now, add other parameters enabled in a similar way with GCC and Clang.

I think the "with" sounds strange, but I am not a native speaker.
Perhaps "in a similar way with" -> "similarly in both"?

Thanks!

Cheers,
Miguel