From nobody Thu Sep 11 10:23:24 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7979EC04A94 for ; Tue, 1 Aug 2023 19:49:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231744AbjHATt0 (ORCPT ); Tue, 1 Aug 2023 15:49:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37454 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231540AbjHATtT (ORCPT ); Tue, 1 Aug 2023 15:49:19 -0400 Received: from bg4.exmail.qq.com (bg4.exmail.qq.com [43.154.54.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B67A92728; Tue, 1 Aug 2023 12:49:14 -0700 (PDT) X-QQ-mid: bizesmtp68t1690919344to62hk3f Received: from linux-lab-host.localdomain ( [116.30.131.233]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 02 Aug 2023 03:49:03 +0800 (CST) X-QQ-SSF: 01200000000000E0X000000A0000000 X-QQ-FEAT: znfcQSa1hKbBLWA55kcreUoddWXsgcsDCazeEwO2EhbsxtiTpktOt/e/Dttm0 0d2GKEdeHpAlQwJQc3xXv8/2hBO3KsmrrxKPL3jGr3MWPA9GxVCPnIPATBHor3ACABVMZfj 7qWXxXaJP9Iuemw10epz54mNEH5W8RCBv5W7s5kCHNz3OBvvp1+UM2hiwsIhhUbGqqyb0ty SleE80b0rdcpqcWRlPXfV/cBbMXSyzLv4rd2ZV5IkMC57UPTyJZ3Nn53TDpRn89twxNILW/ AmBUYGSLbQZEd1guuWP4AnSO0jMoRE69nWaaobj9bGSc3z844fiuw/Pnf+6ZWu0ywsftYTA vQKdfHdaPZ9nrpcs8+OO4zIuN7alsc3WiBUB67iSWwgDQVgrItbEX14GQT/LNoDdEQYXqDi X-QQ-GoodBg: 0 X-BIZMAIL-ID: 18295623081681766068 From: Zhangjin Wu To: thomas@t-8ch.de Cc: falcon@tinylab.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, w@1wt.eu Subject: [PATCH v4 12/12] selftests/nolibc: customize CROSS_COMPILE for 32/64-bit powerpc Date: Wed, 2 Aug 2023 03:49:02 +0800 Message-Id: <2780d43e9d0a1e0e39e98b111766503eab01f4d7.1690916314.git.falcon@tinylab.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:tinylab.org:qybglogicsvrgz:qybglogicsvrgz5a-1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The little-endian powerpc64le compilers provided by Ubuntu and Fedora are able to compile big endian kernel and big endian nolibc-test [1]. These default CROSS_COMPILE settings allow to test target architectures with: $ cd /path/to/tools/testing/selftests/nolibc/ $ for arch in ppc ppc64 ppc64le; do \ make run-user ARCH=3D$arch | grep "status: "; \ done If want to use another cross compiler, please simply pass CROSS_COMPILE or CC as before. For example, it is able to build 64-bit nolibc-test with the big endian powerpc64-linux-gcc crosstool from [2]: $ wget -c https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin= /x86_64/13.1.0/x86_64-gcc-13.1.0-nolibc-powerpc64-linux.tar.xz $ tar xvf x86_64-gcc-13.1.0-nolibc-powerpc64-linux.tar.xz $ export PATH=3D$PWD/gcc-13.1.0-nolibc/powerpc64-linux/bin/:$PATH $ export CROSS_COMPILE_ppc64=3Dpowerpc64-linux- $ export CROSS_COMPILE_ppc64le=3Dpowerpc64-linux- $ for arch in ppc64 ppc64le; do \ make run-user ARCH=3D$arch | grep "status: "; \ done Or specify CC directly with full path: $ export CC=3D$PWD/gcc-13.1.0-nolibc/powerpc64-linux/bin/powerpc64-linu= x-gcc $ for arch in ppc64 ppc64le; do \ make run-user ARCH=3D$arch | grep "status: "; \ done [1]: https://github.com/open-power/skiboot [2]: https://mirrors.edge.kernel.org/pub/tools/crosstool/ Signed-off-by: Zhangjin Wu --- tools/testing/selftests/nolibc/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selfte= sts/nolibc/Makefile index 822cc4bae619..f44a09c39235 100644 --- a/tools/testing/selftests/nolibc/Makefile +++ b/tools/testing/selftests/nolibc/Makefile @@ -59,6 +59,9 @@ IMAGE =3D $(IMAGE_$(XARCH)) IMAGE_NAME =3D $(notdir $(IMAGE)) =20 # CROSS_COMPILE: cross toolchain prefix by architecture +CROSS_COMPILE_ppc ?=3D powerpc-linux-gnu- +CROSS_COMPILE_ppc64 ?=3D powerpc64le-linux-gnu- +CROSS_COMPILE_ppc64le ?=3D powerpc64le-linux-gnu- CROSS_COMPILE ?=3D $(CROSS_COMPILE_$(XARCH)) =20 # make sure CC is prefixed with CROSS_COMPILE --=20 2.25.1