From patchwork Thu Aug 3 11:51:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhangjin Wu X-Patchwork-Id: 13339874 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 C274FC04A6A for ; Thu, 3 Aug 2023 11:52:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234467AbjHCLwR (ORCPT ); Thu, 3 Aug 2023 07:52:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231474AbjHCLwQ (ORCPT ); Thu, 3 Aug 2023 07:52:16 -0400 Received: from bg4.exmail.qq.com (bg4.exmail.qq.com [43.155.65.254]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 606C42737; Thu, 3 Aug 2023 04:52:05 -0700 (PDT) X-QQ-mid: bizesmtp73t1691063514tuggi7c1 Received: from linux-lab-host.localdomain ( [116.30.131.233]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 03 Aug 2023 19:51:53 +0800 (CST) X-QQ-SSF: 01200000000000E0X000000A0000000 X-QQ-FEAT: +ynUkgUhZJk+StiaJH8CjSd7m19whR4AXJZDyTT8ehlxB8pTFlOigr9u1NA37 tMGbHQ72gY+2gLRcHazy3aFdX9Hnf2SLC/ubLXX+EbxT9MTPwaIvkb8uDyFgBJgmtHHkPD2 SjxnAPJxgYufC07vMBECkqpS2Yi17kORakhJy9Tw5MSeycf/0NQb8mT+SDK+iXSQzSPjQSI 0uAbgM7c8zwXf5/Uc9A+dIP1skfQTEQ2zb2ghEffv0Co7xd2Vpo2blf7OptP/xKsPKJ8dpO h2J2M+TGThC+UZIepTZ2vvSiM3BtCqUCpdU0t0tBeUIEWwLsauZ6Kk+4yEkCuiGH/EOD5Pk vvki6kHaEG1siJI6o+8V7Z/giQQxB6dXMzWQhsc+sie7Gp3Ajynm14NFAZM8NRZMnZbFMrK prS+2FB4gUI= X-QQ-GoodBg: 0 X-BIZMAIL-ID: 16267713568485263794 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, tanyuan@tinylab.org Subject: [PATCH v5 8/8] selftests/nolibc: customize CROSS_COMPILE for 32/64-bit powerpc Date: Thu, 3 Aug 2023 19:51:52 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:tinylab.org:qybglogicsvrgz:qybglogicsvrgz5a-1 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org 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 XARCH=$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=$PWD/gcc-13.1.0-nolibc/powerpc64-linux/bin/:$PATH $ export CROSS_COMPILE_ppc=powerpc64-linux- $ export CROSS_COMPILE_ppc64=powerpc64-linux- $ export CROSS_COMPILE_ppc64le=powerpc64-linux- $ for arch in ppc ppc64 ppc64le; do \ make run-user XARCH=$arch | grep "status: "; \ done Or specify CC directly with full path: $ export CC=$PWD/gcc-13.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc $ for arch in ppc ppc64 ppc64le; do \ make run-user XARCH=$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/selftests/nolibc/Makefile index 6e34d364a177..16cc33db54e3 100644 --- a/tools/testing/selftests/nolibc/Makefile +++ b/tools/testing/selftests/nolibc/Makefile @@ -56,6 +56,9 @@ IMAGE = $(IMAGE_$(XARCH)) IMAGE_NAME = $(notdir $(IMAGE)) # CROSS_COMPILE: cross toolchain prefix by architecture +CROSS_COMPILE_ppc ?= powerpc-linux-gnu- +CROSS_COMPILE_ppc64 ?= powerpc64le-linux-gnu- +CROSS_COMPILE_ppc64le ?= powerpc64le-linux-gnu- CROSS_COMPILE ?= $(CROSS_COMPILE_$(XARCH)) # make sure CC is prefixed with CROSS_COMPILE