From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E997C070C3 for ; Fri, 14 Sep 2018 08:33:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAAB020866 for ; Fri, 14 Sep 2018 08:33:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linaro.org header.i=@linaro.org header.b="ZUBQBA/i" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAAB020866 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728200AbeINNq6 (ORCPT ); Fri, 14 Sep 2018 09:46:58 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:36574 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726883AbeINNq5 (ORCPT ); Fri, 14 Sep 2018 09:46:57 -0400 Received: by mail-pf1-f196.google.com with SMTP id b11-v6so3977239pfo.3 for ; Fri, 14 Sep 2018 01:33:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=xw9O3VYKyILcFNk7g1v1ex6Kcw733SokGsK5eSOn6DE=; b=ZUBQBA/ijLxqvShtSFxrSq72PIvvpD6YAsei8aPSZGBUJXs/fioclzZ/VRxX9O7L8K k62QaibwTFxu+Sw9xWnXvjTuliFZwmcHVRzxWmBIr0cyL2jFlEtWwZNlOXlnVi+9qVef fBk85ek6sg3P1bpw3eFt5hz79GTHSuytQq2s4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=xw9O3VYKyILcFNk7g1v1ex6Kcw733SokGsK5eSOn6DE=; b=HkX0XHVvrf0iYru/NoZz3rHYjGUObu6a1rCtniGUeaCPJVE1z9LGedDDXUwcmd+5kw oOMB2eFC7o80+jgX6NV6YUX1AejOZ0Nowqj8OFrQY7LwDvpxpc3CxyGxfmxBQgArnGLw gkr4SH1jpkD6MRJ4V3sZFgtpzoKNpfk4rKhuGwuAPf5sQbWEUyFmOVu2kCD5hq/vrPAa Zy6kQp3bNfAMhGc501DAaXvlPw5bcyTkYR0lVdFgTJCprxRCTOxZn41jabbiewliG8Gj kAHAZYIouKT6N6S6xwq9H6XSH29dLy//McAkKYwuk5U5bGZ0VqzobbAp65pFlVooIjuR tNeA== X-Gm-Message-State: APzg51A+jW1CldUBAyH5CILbJ912cwEvLS4G6uPmtHwZ+UJzYDtIpXdI K0VSOo2f8eFq6nBlGYzssW2xuA== X-Google-Smtp-Source: ANB0VdYqndyO5ZvMKTe+l6HJbxxjaFFfDpNRgj+WEjIwn/x790VfYpKfp2xW4lfWBaFSG2bg1UttuQ== X-Received: by 2002:a63:ac11:: with SMTP id v17-v6mr10649167pge.196.1536914012191; Fri, 14 Sep 2018 01:33:32 -0700 (PDT) Received: from qualcomm-HP-ZBook-14-G2.domain.name ([49.207.60.83]) by smtp.gmail.com with ESMTPSA id d6-v6sm12427070pgt.66.2018.09.14.01.33.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 14 Sep 2018 01:33:31 -0700 (PDT) From: Firoz Khan To: Arnd Bergmann , linuxppc-dev@lists.ozlabs.org, Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Ram Pai , Breno Leitao , Boqun Feng , Greg Kroah-Hartman , Philippe Ombredanne , Thomas Gleixner , Kate Stewart Cc: y2038@lists.linaro.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, deepa.kernel@gmail.com, marcin.juszkiewicz@linaro.org, firoz.khan@linaro.org Subject: [PATCH 0/3] System call table generation support Date: Fri, 14 Sep 2018 14:02:57 +0530 Message-Id: <1536913980-4811-1-git-send-email-firoz.khan@linaro.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The purpose of this patch series is: 1. We can easily add/modify/delete system call by changing entry in syscall.tbl file. No need to manually edit many files. 2. It is easy to unify the system call implementation across all the architectures. The system call tables are in different format in all architecture and it will be difficult to manually add or modify the system calls in the respective files manually. To make it easy by keeping a script and which'll generate the header file and syscall table file so this change will unify them across all architectures. syscall.tbl contains the list of available system calls along with system call number and corresponding entry point. Add a new system call in this architecture will be possible by adding new entry in the syscall.tbl file. Adding a new table entry consisting of: - System call number. - ABI. - System call name. - Entry point name. - Compat entry name, if required. ARM, s390 and x86 architecuture does exist the similar support. I leverage their implementation to come up with a generic solution. I have done the same support for work for alpha, m68k, microblaze, ia64, mips, parisc, sh, sparc, and xtensa. But I started sending the patch for one architecuture for review. Below mentioned git repository contains more details. Git repo:- https://github.com/frzkhn/system_call_table_generator/ Finally, this is the ground work for solving the Y2038 issue. We need to add/change two dozen of system calls to solve Y2038 issue. So this patch series will help to easily modify from existing system call to Y2038 compatible system calls. I started working system call table generation on 4.17-rc1. I used marcin's script - https://github.com/hrw/syscalls-table to generate the syscall.tbl file. And this will be the input to the system call table generation script. But there are couple system call got add in the latest rc release. If run Marcin's script on latest release, It will generate a new syscall.tbl. But I still use the old file - syscall.tbl and once all review got over I'll update syscall.tbl alone w.r.to the tip of the kernel. The impact of this thing, few of the system call won't work. Firoz Khan (3): powerpc: Replace NR_syscalls macro from asm/unistd.h powerpc: Add system call table generation support powerpc: uapi header and system call table file generation arch/powerpc/Makefile | 3 + arch/powerpc/include/asm/Kbuild | 3 + arch/powerpc/include/asm/unistd.h | 3 +- arch/powerpc/include/uapi/asm/Kbuild | 2 + arch/powerpc/include/uapi/asm/unistd.h | 391 +--------------------------- arch/powerpc/kernel/Makefile | 3 +- arch/powerpc/kernel/syscall_table_32.S | 9 + arch/powerpc/kernel/syscall_table_64.S | 17 ++ arch/powerpc/kernel/syscalls/Makefile | 51 ++++ arch/powerpc/kernel/syscalls/syscall_32.tbl | 378 +++++++++++++++++++++++++++ arch/powerpc/kernel/syscalls/syscall_64.tbl | 372 ++++++++++++++++++++++++++ arch/powerpc/kernel/syscalls/syscallhdr.sh | 37 +++ arch/powerpc/kernel/syscalls/syscalltbl.sh | 38 +++ arch/powerpc/kernel/systbl.S | 50 ---- 14 files changed, 916 insertions(+), 441 deletions(-) create mode 100644 arch/powerpc/kernel/syscall_table_32.S create mode 100644 arch/powerpc/kernel/syscall_table_64.S create mode 100644 arch/powerpc/kernel/syscalls/Makefile create mode 100644 arch/powerpc/kernel/syscalls/syscall_32.tbl create mode 100644 arch/powerpc/kernel/syscalls/syscall_64.tbl create mode 100644 arch/powerpc/kernel/syscalls/syscallhdr.sh create mode 100644 arch/powerpc/kernel/syscalls/syscalltbl.sh delete mode 100644 arch/powerpc/kernel/systbl.S -- 1.9.1