linux-kernel - Re: [PATCH v2 1/6] Add AutoFDO support for Clang build

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Message-ID: <Zv-Fy4hnuscnLH1k@kernel.org>
Date: Fri, 4 Oct 2024 09:06:03 +0300
From: Mike Rapoport <rppt@...nel.org>
To: Rong Xu <xur@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Jonathan Corbet <corbet@....net>, Han Shen <shenhan@...gle.com>,
	Sriraman Tallam <tmsriram@...gle.com>,
	David Li <davidxl@...gle.com>,
	Krzysztof Pszeniczny <kpszeniczny@...gle.com>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, Bill Wendling <morbo@...gle.com>,
	Borislav Petkov <bp@...en8.de>, Breno Leitao <leitao@...ian.org>,
	Brian Gerst <brgerst@...il.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Heiko Carstens <hca@...ux.ibm.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	Jann Horn <jannh@...gle.com>, Josh Poimboeuf <jpoimboe@...nel.org>,
	Juergen Gross <jgross@...e.com>,
	Justin Stitt <justinstitt@...gle.com>, Kees Cook <kees@...nel.org>,
	linux-arch@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
	llvm@...ts.linux.dev, Masahiro Yamada <masahiroy@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Samuel Holland <samuel.holland@...ive.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Wei Yang <richard.weiyang@...il.com>, workflows@...r.kernel.org,
	x86@...nel.org, "Xin Li (Intel)" <xin@...or.com>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH v2 1/6] Add AutoFDO support for Clang build

On Thu, Oct 03, 2024 at 11:20:17AM -0700, Rong Xu wrote:
> Writing the doc with all these code-blocks was not fun either.
> We are happy to change if there is a better way for this.
> 
> -Rong
> 
> On Thu, Oct 3, 2024 at 9:13 AM Peter Zijlstra <peterz@...radead.org> wrote:
> >
> > On Thu, Oct 03, 2024 at 09:11:34AM -0700, Nick Desaulniers wrote:
> >
> > > > It makes it absolute crap for all of us who 'render' text documents
> > > > using less or vi.
> > >
> > > "It hurts when I punch myself in the face."
> >
> > Weirdly enough I have a job that entails staring at text documents in
> > text editors all day every day :-) sorry for thinking that's a sane
> > thing to do.

Something like this should do:

> +- For enabling a single file (e.g. foo.o)::
> +
> +        AUTOFDO_PROFILE_foo.o := y


-- 
Sincerely yours,
Mike.