linux-kernel - Re: [PATCH 2/2] arch: use cross_compiling to check whether it is a cross build or not

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Date:   Thu, 6 May 2021 07:11:51 -0500
From:   Rob Landley <rob@...dley.net>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        linux-kbuild@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>, Chris Zankel <chris@...kel.net>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Helge Deller <deller@....de>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Rich Felker <dalias@...c.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        linux-kernel@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
        linux-sh@...r.kernel.org, linux-xtensa@...ux-xtensa.org
Subject: Re: [PATCH 2/2] arch: use cross_compiling to check whether it is a
 cross build or not

On 5/1/21 12:24 PM, Masahiro Yamada wrote:
> 'cross_compiling' is defined by the top Makefile and available for
> arch Makefiles to check whether it is a cross build or not. A good
> thing is the variable name 'cross_compiling' is self-documenting.
> 
> This is a simple replacement for m68k, mips, sh, for which $(ARCH)
> and $(SRCARCH) always match.
> 
> No functional change is intended for xtensa, either.
> 
> This is rather a fix for parisc because arch/parisc/Makefile defines
> UTS_MATCHINE depending on CONFIG_64BIT, therefore cc-cross-prefix
> is not working in Kconfig time.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

Tried the patch in my sh build, the result built and booted.

Tested-by: Rob Landley <rob@...dley.net>

Rob