From patchwork Fri Sep 14 08:26:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Firoz Khan X-Patchwork-Id: 10600379 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 92DB814BD for ; Fri, 14 Sep 2018 08:27:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4279D2B19B for ; Fri, 14 Sep 2018 08:27:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 342542B276; Fri, 14 Sep 2018 08:27:20 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1B2482B19B for ; Fri, 14 Sep 2018 08:27:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727796AbeINNkk (ORCPT ); Fri, 14 Sep 2018 09:40:40 -0400 Received: from mail-pl1-f196.google.com ([209.85.214.196]:46976 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727774AbeINNkk (ORCPT ); Fri, 14 Sep 2018 09:40:40 -0400 Received: by mail-pl1-f196.google.com with SMTP id t19-v6so3847842ply.13 for ; Fri, 14 Sep 2018 01:27:18 -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=xgvBC8CKG1XfG1Xc4QhAuPKleHXf+h1dW+V2YwUIXNQ=; b=LnaBsW3nSn2IUjm91vgdenzQLIs5ZjtTxknBqMYLu/jcUgPY8bN2+STD30sUfNot/M 7+HwRKC7yA+Y2rVeCEeYs6BlumUAXTp4CupZ+dLbfwynbaiTIiEnc3aMPdUBhNMRJ54E 5N9RrL0o3pX9a1h8fAR0kFsqGz0Avt3JFsl0M= 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=xgvBC8CKG1XfG1Xc4QhAuPKleHXf+h1dW+V2YwUIXNQ=; b=XzJy1aPcdgP17j7BMW179bLVgBwCflAjWUEVw0wDIHh9jxquCfNflFWHiVn+68hAuK xzu438xGW03imyJOH7mlImosBXLtp04ZRmYl6UfRQykZE/hdLVCsgwP9SDkd2gf8FrtX U10x30fG7ob7oU99ueX3XMI9LMt//Ks3XSashjo3dsepCXW0wM0EwkN8dNeUQSb7x/UU W2EUlhAt0cMo5rIL4r2LT0Ql94JZQW52DTsx2AACjW2DJXXbjXOYlhBMhF1Y9g60LMiY uoFZ+bUv0XGrbUPzo61DvxsBNInBWRmpBfFxgN3i3s+/SaN4sBO6sfwGcKWY9mR7WdH1 3MDg== X-Gm-Message-State: APzg51CL34YmnbRTQg9uiCPKEVOY+hYEyPm7EmJfZzxeon3toEDgXBTq ckGaHC/yS9yqjs/1xmrN1Cr1pg== X-Google-Smtp-Source: ANB0VdZtUfZ9YP3G1yXOgcRtRXI2jOG8Ent5g9/NUjGF3o0xFgvufvXCN6f0uBnXlPtSGD7+PXVZDQ== X-Received: by 2002:a17:902:e281:: with SMTP id cf1-v6mr11018070plb.86.1536913637608; Fri, 14 Sep 2018 01:27:17 -0700 (PDT) Received: from qualcomm-HP-ZBook-14-G2.domain.name ([49.207.60.83]) by smtp.gmail.com with ESMTPSA id q80-v6sm8919855pfd.15.2018.09.14.01.27.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 14 Sep 2018 01:27:17 -0700 (PDT) From: Firoz Khan To: Thibaut Varene , linux-parisc@vger.kernel.org, "James E . J . Bottomley" , Helge Deller , Greg Kroah-Hartman , Philippe Ombredanne , Thomas Gleixner , Kate Stewart Cc: y2038@lists.linaro.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, arnd@arndb.de, deepa.kernel@gmail.com, marcin.juszkiewicz@linaro.org, firoz.khan@linaro.org Subject: [PATCH 0/4] System call table generation support Date: Fri, 14 Sep 2018 13:56:39 +0530 Message-Id: <1536913603-4584-1-git-send-email-firoz.khan@linaro.org> X-Mailer: git-send-email 2.7.4 Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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, powerpc, 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 (4): parisc: Move __IGNORE* entries to non uapi header parisc: Replace __NR_Linux_syscalls macro with __NR_syscalls parisc: Add system call table generation support parisc: uapi header and system call table file generation arch/parisc/Makefile | 4 + arch/parisc/include/asm/Kbuild | 3 + arch/parisc/include/asm/unistd.h | 8 + arch/parisc/include/uapi/asm/Kbuild | 2 + arch/parisc/include/uapi/asm/unistd.h | 377 +---------------------- arch/parisc/kernel/syscall.S | 14 +- arch/parisc/kernel/syscall_table.S | 459 ----------------------------- arch/parisc/kernel/syscall_table_32.S | 11 + arch/parisc/kernel/syscall_table_64.S | 19 ++ arch/parisc/kernel/syscalls/Makefile | 52 ++++ arch/parisc/kernel/syscalls/syscall_32.tbl | 358 ++++++++++++++++++++++ arch/parisc/kernel/syscalls/syscall_64.tbl | 357 ++++++++++++++++++++++ arch/parisc/kernel/syscalls/syscallhdr.sh | 38 +++ arch/parisc/kernel/syscalls/syscalltbl.sh | 36 +++ 14 files changed, 896 insertions(+), 842 deletions(-) delete mode 100644 arch/parisc/kernel/syscall_table.S create mode 100644 arch/parisc/kernel/syscall_table_32.S create mode 100644 arch/parisc/kernel/syscall_table_64.S create mode 100644 arch/parisc/kernel/syscalls/Makefile create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh