linux-kernel - Re: [RFC][PATCH 0/4] locking: Add/convert context analysis bits

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Message-ID: <20260122185812.GB3461196@ax162>
Date: Thu, 22 Jan 2026 11:58:12 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Bart Van Assche <bvanassche@....org>
Cc: Peter Zijlstra <peterz@...radead.org>, elver@...gle.com,
	linux-kernel@...r.kernel.org, bigeasy@...utronix.de,
	mingo@...nel.org, tglx@...utronix.de, will@...nel.org,
	boqun.feng@...il.com, longman@...hat.com, hch@....de,
	rostedt@...dmis.org, llvm@...ts.linux.dev
Subject: Re: [RFC][PATCH 0/4] locking: Add/convert context analysis bits

On Thu, Jan 22, 2026 at 08:28:44AM -0800, Bart Van Assche wrote:
> The build-kernel-with-clang script is as follows (this may not be the
> recommended way to build the kernel with clang):
> 
> #!/bin/bash
> export CC=clang
> export LD=ld.lld      # Use LLVM's linker (optional but recommended)
> export AR=llvm-ar
> export NM=llvm-nm
> export OBJCOPY=llvm-objcopy
> export OBJDUMP=llvm-objdump
> export STRIP=llvm-strip
> export READELF=llvm-readelf
> make LLVM=1 CC=clang "$@"

FWIW, this could ultimately simplify to

    make LLVM=1 "$@"

as LLVM=1 is the shorthand for

    make CC=clang LD=ld.lld AR=llvm-ar NM=llvm-nm STRIP=llvm-strip \
         OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump READELF=llvm-readelf \
         HOSTCC=clang HOSTCXX=clang++ HOSTAR=llvm-ar HOSTLD=ld.lld

as noted in Documentation/kbuild/llvm.rst /
https://docs.kernel.org/kbuild/llvm.html.

Cheers,
Nathan