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Fri, 23 Oct 2026 11:23:55 +0000 (UTC) Received: from webmail.free.fr (unknown [172.20.246.2]) (Authenticated sender: ju.o@free.fr) by smtp3-g21.free.fr (Postfix) with ESMTPA id 94B2D13F88E; Fri, 23 Oct 2026 13:23:49 +0200 (CEST) Received: from 2a01:e0a:1065:2100:52d9:65fe:2df3:c492 via 2a01:e0a:1065:2100:52d9:65fe:2df3:c492 by webmail.free.fr with HTTP (HTTP/1.0 POST); Fri, 23 Oct 2026 13:23:49 +0200 X-Archived-By: MIME-Version: 1.0 Date: Fri, 23 Oct 2026 13:23:49 +0200 To: Baruch Siach Cc: Arnout Vandecappelle via buildroot , Arnout Vandecappelle , Mark Corbin , Thomas Petazzoni In-Reply-To: <87zew6t6is.fsf@tarshish> References: <20261020202639.1094960-1-ju.o@free.fr> <20261020202639.1094960-4-ju.o@free.fr> <562ad192-b09a-4470-a02e-e3b0d5b2af00@rnout.be> <87zew6t6is.fsf@tarshish> User-Agent: Webmail Free/1.6.20 Message-ID: X-Sender: ju.o@free.fr Subject: Re: [Buildroot] [PATCH 4/4] arch/Config.in: change default target architecture to AArch64 X-BeenThere: buildroot@buildroot.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Discussion and development of buildroot List-Archive: List-Post: List-Help: List-Subscribe: , From: Julien Olivain via buildroot Reply-To: Julien Olivain Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "buildroot" X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hi Baruch, Arnout, On 22/10/2026 11:43, Baruch Siach via buildroot wrote: > Hi Arnout, > > On Thu, Oct 22 2026, Arnout Vandecappelle via buildroot wrote: >> On 20/10/2026 22:26, Julien Olivain via buildroot wrote: >>> This commit switches the default target architecture in >>> arch/Config.in >>> from i686 to AArch64. AArch64 is now one of the most common >>> architecture on embedded Linux systems. The default CPU for this >>> architecture remains the Cortex-A53 (Armv8.0). >>> While at it, this commit also refreshes the .defconfig to: >> >> Do we even need this .defconfig file? Isn't that a leftover from >> very, very, >> very old Kconfig? > > .defconfig seems to be Buildroot specific: > > support/kconfig/patches/01-kconfig-kernel-to-buildroot.patch: > Index: kconfig/confdata.c > =================================================================== > --- kconfig.orig/confdata.c > +++ kconfig/confdata.c > @@ -30,7 +30,7 @@ static void conf_message(const char *fmt > static const char *conf_filename; > static int conf_lineno, conf_warnings; > > -const char conf_defname[] = "arch/$ARCH/defconfig"; > +const char conf_defname[] = ".defconfig"; > > static void conf_warning(const char *fmt, ...) > { This .defconfig file is still used, when running a simple "make defconfig". If we remove it then run "make defconfig" kconfig fails with error: *** Can't find default configuration ".defconfig"! Also, we can see that without the patch changing the default arch to AArch64, running "make defconfig" generates a i686 config. With the patch, we then have a aarch64 config. There was indeed ancient leftovers in this .defconfig file. > > baruch > > -- > ~. .~ Tk Open > Systems > =}------------------------------------------------ooO--U--Ooo------------{= > - baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il - Best regards, Julien. _______________________________________________ buildroot mailing list buildroot@buildroot.org https://lists.buildroot.org/mailman/listinfo/buildroot