linux-kernel - Re: [PATCH v2 2/2] Makefile: infer CROSS_COMPILE from SRCARCH for LLVM=1 LLVM

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Message-ID: <CAHk-=wj-TkHtkxSOLDzXhThvRCrRys3fo4T9=mtbUy+9kBGe4Q@mail.gmail.com>
Date:   Tue, 20 Jul 2021 16:22:42 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Miguel Ojeda <ojeda@...nel.org>,
        Fangrui Song <maskray@...gle.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Arnd Bergmann <arnd@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Christoph Hellwig <hch@...radead.org>,
        Nathan Chancellor <nathan@...nel.org>
Subject: Re: [PATCH v2 2/2] Makefile: infer CROSS_COMPILE from SRCARCH for
 LLVM=1 LLVM_IAS=1

On Tue, Jul 20, 2021 at 4:19 PM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> There are probably better ways to do this

Oh. In particular, it probably should use a '?=' in order to allow
overriding, and not expanding that $(shell git config..) thing every
time $(CC) is used.

Or something. I didn't really think about those things very much.
Think of that patch - as so many of my patches - as a starting point
and a "how about something like this".

              Linus