linux-kernel - Re: [PATCH] kallsyms: ignore ARMv4 thunks along with others

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Message-ID: <CAK7LNATNuM=_+r2KWB9KW9Ax-zyMa4d9SsbNr8ba+UkhhaBcyA@mail.gmail.com>
Date: Thu, 15 Feb 2024 05:56:43 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Arnd Bergmann <arnd@...db.de>
Cc: Arnd Bergmann <arnd@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
	Nicolas Schier <nicolas@...sle.eu>, Pierre-Clément Tosi <ptosi@...gle.com>, 
	Ard Biesheuvel <ardb@...nel.org>, linux-kbuild@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kallsyms: ignore ARMv4 thunks along with others

On Thu, Feb 15, 2024 at 5:47 AM Arnd Bergmann <arnd@...db.de> wrote:
>
> On Wed, Feb 14, 2024, at 21:34, Masahiro Yamada wrote:
> > On Thu, Feb 15, 2024 at 3:19 AM Arnd Bergmann <arnd@...nel.org> wrote:
> > If this is a recurring problem,
> > maybe is it better to use a regular expression?
> >
> >
> > Remove these lines:
> >
> > # arm64 lld
> > / __AArch64ADRPThunk_/d
> >
> > # arm lld
> > / __ARMV5PILongThunk_/d
> > / __ARMV7PILongThunk_/d
> > / __ThumbV7PILongThunk_/d
> >
> > # mips lld
> > / __LA25Thunk_/d
> > / __microLA25Thunk_/d
> >
> >
> >
> >
> >
> > Add this:
> >
> > # lld
> > / __[^[:space:]]*Thunk_/d
> >
> > This pattern is only used in tooling,
> > but never in the kernel space.
>
> Right, makes sense. There is always a risk of removing
> intential kernel symbols and this is slightly higher
> with the regex but still not that bad.
>
> I'll give this a spin and send a v2 tomorrow then.
>
>     Arnd



Maybe this is a little more simpler:


/ __[[:alnum:]]*Thunk_/d





-- 
Best Regards
Masahiro Yamada