From patchwork Sat Jun 3 09:00:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhangjin Wu X-Patchwork-Id: 13266119 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 DF506C77B73 for ; Sat, 3 Jun 2023 09:01:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229586AbjFCJBH (ORCPT ); Sat, 3 Jun 2023 05:01:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229550AbjFCJBG (ORCPT ); Sat, 3 Jun 2023 05:01:06 -0400 Received: from bg4.exmail.qq.com (bg4.exmail.qq.com [43.154.54.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C65D41B5; Sat, 3 Jun 2023 02:01:02 -0700 (PDT) X-QQ-mid: bizesmtp81t1685782850txqcbj5y Received: from linux-lab-host.localdomain ( [119.123.130.226]) by bizesmtp.qq.com (ESMTP) with id ; Sat, 03 Jun 2023 17:00:49 +0800 (CST) X-QQ-SSF: 01200000000000D0V000000A0000000 X-QQ-FEAT: dS+JUNSIibdBnc+tIJt+WeMytSH2tNEkxCjMCD4VPtHgoFNxQaIPNyyj3VrsU L4aLi7UZjLKSyXCsxEAGLpykcZ6lpcX6vh29qsvV3MwdwXcysQei3DXLoqvZ+mmyI684xYV O+/wRohKUsF5llCCmjFXzT9kBRTpbSwE1lTy+dEL+VK+pelCK942/a+1IQRs3HuKn1WVhrM iLVKUx7SJjng4ljrg2pEE5nnEX/ep0Rf1Uj55k3Vbd8T6hlaTlXLxnCX3nWZMu3gLWqn1gI 4I7kD4JLMmWN7SNnGdqjup9qSn1ctiNC0mlpSYUp4EthY61wFhAwe+/rH8Jsx3uQ3yf4pUb fl6OniGg++MT3GHMVagj8FpoPyXXK+Z+l1yKfSlg0y0+KtwVTOPP8PCdFNQrFhUS/qOt+EM X-QQ-GoodBg: 0 X-BIZMAIL-ID: 15397238080264048337 From: Zhangjin Wu To: w@1wt.eu Cc: falcon@tinylab.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org, thomas@t-8ch.de Subject: [PATCH v3 0/3] nolibc: add part2 of support for rv32 Date: Sat, 3 Jun 2023 17:00:36 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:tinylab.org:qybglogicsvrsz:qybglogicsvrsz3a-3 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Hi, Willy This is the v3 part2 of support for rv32, differs from the v2 part2 [1], we only fix up compile issues in this patchset. With the v3 generic part1 [2] and this patchset, we can compile nolibc for rv32 now. This is based on the idea of suggestions from Arnd [3], instead of '#error' on the unsupported syscall on a target platform, a 'return -ENOSYS' allow us to compile it at first and then allow we fix up the test failures reported by nolibc-test one by one. The first two patches fix up all of the compile failures with '-ENOSYS' (and '#ifdef' if required): tools/nolibc: fix up #error compile failures with -ENOSYS tools/nolibc: fix up undeclared syscall macros with #ifdef and -ENOSYS The last one enables rv32 compile support: selftests/nolibc: riscv: customize makefile for rv32 The above compile support patch here is only for test currently, as Thomas suggested, for a full rv32 support, it should wait for the left parts. Welcome your feedbacks, will wait for enough discussion on this patchset and then send the left parts one by one to fix up the test failures about waitid, llseek and time64 syscalls: ppoll_time64, clock_gettime64, pselect6_time64. So, I do recommend to apply this patchset, it allows us to send the left parts independently, otherwise, all of them should be sent out for review together. with this patchset, the rv32 users may be able to use nolibc although some syscalls still missing :-) Or at least we apply the first two, so, I can manually cherry-pick the compile support patch to do my local test, and the other platform developer may also benefit from them. I'm cleaning up the left parts, but still require some time, I plan to split them to such parts: * part3: waitid, prepared, will send out later * part4: llseek, prepared, will send out later * part5: time64 syscalls, ppoll_time64 ok, will finish them next week (It is a little hard to split them) Best regards, Zhangjin --- [1]: https://lore.kernel.org/linux-riscv/cover.1685387484.git.falcon@tinylab.org/T/#t [2]: https://lore.kernel.org/linux-riscv/cover.1685777982.git.falcon@tinylab.org/T/#t [3]: https://lore.kernel.org/linux-riscv/5e7d2adf-e96f-41ca-a4c6-5c87a25d4c9c@app.fastmail.com/ Zhangjin Wu (3): tools/nolibc: fix up #error compile failures with -ENOSYS tools/nolibc: fix up undeclared syscall macros with #ifdef and -ENOSYS selftests/nolibc: riscv: customize makefile for rv32 tools/include/nolibc/sys.h | 38 ++++++++++++++++--------- tools/testing/selftests/nolibc/Makefile | 11 +++++-- 2 files changed, 34 insertions(+), 15 deletions(-)