From nobody Wed Sep 10 11:39:24 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 231EFC00528 for ; Thu, 27 Jul 2023 20:28:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229779AbjG0U2e (ORCPT ); Thu, 27 Jul 2023 16:28:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230049AbjG0U2b (ORCPT ); Thu, 27 Jul 2023 16:28:31 -0400 Received: from bg4.exmail.qq.com (bg4.exmail.qq.com [43.155.65.254]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 861CE30CD; Thu, 27 Jul 2023 13:28:28 -0700 (PDT) X-QQ-mid: bizesmtp77t1690489698t82ph8cm Received: from linux-lab-host.localdomain ( [61.141.78.189]) by bizesmtp.qq.com (ESMTP) with id ; Fri, 28 Jul 2023 04:28:17 +0800 (CST) X-QQ-SSF: 01200000000000D0X000000A0000000 X-QQ-FEAT: dKvkn8qoLrE2yLn96qy5k0fzTpwuyKtkiBSpI4LwdFyOeVirP6jaXvT0wq5IB lyhlNscOT+zA2kHB7tqoZ7sJwvbTr525TCosc7zMPGfENlCjXaycc0d9ITayDt+FcvVnqoa CYH8kqgk62UIvsOM6IRf45fZm/tD16k4QVwCphU4X6zJSbEt3vx4jGjLm2aCkaZ0J3EdBhi 7B+qe6+RI/NJPVFoMTuzy+BKEtxQcWXRqOEGuzqmBtamF70BLvlykk4dHD5nh7usejRRyLB JCBuYBm7V062gzUOMueR6pXzenYc9e5+ti7FqyhKWD/TTxpPm7P7gsGppuRl9ksU7QLJfXx KcL5CCZD+J3JP9LDFEiXmJZhnWcgiXe2saCrF9nZ6UbWxScnTXfUrYeU7FLGvh2Jk8EGX/e X-QQ-GoodBg: 0 X-BIZMAIL-ID: 16216814846800268763 From: Zhangjin Wu To: thomas@t-8ch.de, w@1wt.eu Cc: falcon@tinylab.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH v3 06/12] selftests/nolibc: customize CROSS_COMPILE for 32/64-bit powerpc Date: Fri, 28 Jul 2023 04:28:17 +0800 Message-Id: <41e2aa9e4299dd35cfeef9fecc2a6a02a7b49d90.1690489039.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 3f15c7f7ef76..6385915d16c9 100644 --- a/tools/testing/selftests/nolibc/Makefile +++ b/tools/testing/selftests/nolibc/Makefile @@ -46,6 +46,9 @@ 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