From patchwork Thu Dec 13 09:02:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Firoz Khan X-Patchwork-Id: 153607 Delivered-To: patch@linaro.org Received: by 2002:a2e:299d:0:0:0:0:0 with SMTP id p29-v6csp566676ljp; Thu, 13 Dec 2018 01:04:18 -0800 (PST) X-Google-Smtp-Source: AFSGD/Vuzcr9C3tR3L8vQEprNBaLGD1VPuiHwtaIfV/jK2lSEFQi5H2Asu41XFOWFz031GEzAaO2 X-Received: by 2002:a62:32c4:: with SMTP id y187mr24227867pfy.195.1544691858397; Thu, 13 Dec 2018 01:04:18 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1544691858; cv=none; d=google.com; s=arc-20160816; b=ik9OX05LS5KK5+Dnq5ollpAvY65VdgvUrO4ny84wa7WgWHECpIgPls5SHaFLoL/qN7 IgaafxkZNhiUuwdGjRZ8hbViezLv3GnbtkGqKRJducpXnpeUp58u+HRk8U11ct2kN48i /M5bpXWcaEmYz5BwSBaAXm9iqp9lKWdkWZ/woQlS9ln0xZ6lF4sHmT3SpOGU4iZ+sTLt 2eAwzSNpAWHbcGFtD+vZXLsgvkGlEt/4OtjJLKUigL5NI4y3/hKdrThJp201htPy4B+Q eMyrcc/r+1LUFKF0b+bRpjnW1RkgrrPBClTOtDq9vm/iPzPpTQEdkkqCeGwPjt+FC5Jw sxvQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :dkim-signature; bh=kx/v8SQuOHTsbh88Np6JyLP5jvdQm+NuUr90LMrVo8w=; b=JS/EpLuw13p+VeZaZUA7MADm9kGyIpH9VBVlcppe6ag6MdWJhdk/gAJhAPSLqYOk1a s+tE8LOdsYcxoOYxLe0D8Jqabm1Q2yOftYuE74/sGIo+wLi2mRGxNxi8gU6fr6O9zW8s YfmWrVsfxCdUZdBdDiivCagzYn9ak0E8OElKnrdlTd+GL31xcxwdGKDwN2WfjmQVorel 0mstp0fK6Mifq4fiQc0UMh7qUo+MUOX9vdcHCMch9MmcSL/0q01d+OXJFt5yXfSz2kdx aGp73wBk1QLTQ5Hn+aiEjnxLgJoPdVZMxqSk61ECtiXvg2IDHr1WG5535tawkMH/73Y6 sjbg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=YlX7SFDR; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id k135si1105368pgc.574.2018.12.13.01.04.17; Thu, 13 Dec 2018 01:04:18 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=YlX7SFDR; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727188AbeLMJEP (ORCPT + 31 others); Thu, 13 Dec 2018 04:04:15 -0500 Received: from mail-pf1-f195.google.com ([209.85.210.195]:45914 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726729AbeLMJEP (ORCPT ); Thu, 13 Dec 2018 04:04:15 -0500 Received: by mail-pf1-f195.google.com with SMTP id g62so775000pfd.12 for ; Thu, 13 Dec 2018 01:04:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=kx/v8SQuOHTsbh88Np6JyLP5jvdQm+NuUr90LMrVo8w=; b=YlX7SFDR9cj48oXpkjb8Bukgm61kV0HMDsIsI4L2Fb30Z0FvEYwl1mrFzqFvQdKKcc QSxW5pVMOBhw92lu0Fa3ZeOlrDWnL1qDZ1KFyow881D/srcc1bwF1RTcGwwK12ODmONw zFj7rrVQnO1zMzeeuohiRLjr0zbm3VRnnJftk= 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=kx/v8SQuOHTsbh88Np6JyLP5jvdQm+NuUr90LMrVo8w=; b=soj/Yps/hnJ1lO3i6boab0ThHhpjMWLLuClNqys6fAq/o4IvNp8tIil0Wlwpe6cXWB 4eeflEuNruJz2Xq/hahKQd+G5RWCQ1dN/ShSOpmdSkxqEyARhswEhNlWlTzicGopohBP LL0ws7kxsN3KE776ugYtXnG+pMXkCKml3lisuo2pAmq+N6aHeqEqH+mN18PhNVQQ2Por cFjqDjBGQ7o8IR/CPoaxiKzCjpmSM3ZQHPz76IsYg+LxWQSnTL2cMd3aufqN71QoSGQw BGnMDFkymhU8wMcOgPvQcUz5m5u2odxudlgu9W/LLjQXNPAdiubQmoJ/QyN4cXJZlahw nCVQ== X-Gm-Message-State: AA+aEWbuIcynVlipVGlW0RvyYRGrvAygQ2OmiG1GfryTSC5Pgv8123wL YOcImbTRaCJ5OVDMz1yeuoPNXA== X-Received: by 2002:a62:f907:: with SMTP id o7mr22862310pfh.244.1544691853295; Thu, 13 Dec 2018 01:04:13 -0800 (PST) Received: from qualcomm-HP-ZBook-14-G2.qualcomm.com (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com. [103.229.18.19]) by smtp.gmail.com with ESMTPSA id s9sm1888305pgl.88.2018.12.13.01.04.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 13 Dec 2018 01:04:12 -0800 (PST) From: Firoz Khan To: linuxppc-dev@lists.ozlabs.org, Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Arnd Bergmann , Geert Uytterhoeven , Ram Pai , Mathieu Desnoyers , Boqun Feng , Breno Leitao , 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 v5 0/5] powerpc: system call table generation support Date: Thu, 13 Dec 2018 14:32:45 +0530 Message-Id: <1544691770-8938-1-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, we can easily add/modify/delete system call table support by cha- nging entry in syscall.tbl file instead of manually changing many files. The other goal is to unify the system call table generation support implementation across all the architectures. The system call tables are in different format in all architecture. It will be difficult to manually add, modify or delete the system calls in the resp- ective files manually. To make it easy by keeping a script and which'll generate uapi header file and syscall table file. syscall.tbl contains the list of available system calls along with system call number and correspond- ing entry point. Add a new system call in this arch- itecture 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. - spu entry name, if required. ARM, s390 and x86 architecuture does exist the sim- ilar support. I leverage their implementation to come up with a generic solution. I have done the same support for work for alpha, ia64, m68k, microblaze, mips, parisc, sh, sparc, and xtensa. Below mentioned git repository contains more details about the workflow. https://github.com/frzkhn/system_call_table_generator/ Finally, this is the ground work to solve the Y2038 issue. We need to add two dozen of system calls to solve Y2038 issue. So this patch series will help to add new system calls easily by adding new entry in the syscall.tbl. Changes since v4: - DOTSYM macro removed for ppc32, which was causing the compilation error. Changes since v3: - split compat syscall table out from native table. - modified the script to add new line in the generated file. Changes since v2: - modified/optimized the syscall.tbl to avoid duplicate for the spu entries. - updated the syscalltbl.sh to meet the above point. Changes since v1: - optimized/updated the syscall table generation scripts. - fixed all mixed indentation issues in syscall.tbl. - added "comments" in syscall_*.tbl. - changed from generic-y to generated-y in Kbuild. Firoz Khan (5): powerpc: add __NR_syscalls along with NR_syscalls powerpc: move macro definition from asm/systbl.h powerpc: add system call table generation support powerpc: split compat syscall table out from native table powerpc: generate uapi header and system call table files arch/powerpc/Makefile | 3 + arch/powerpc/include/asm/Kbuild | 4 + arch/powerpc/include/asm/syscall.h | 3 +- arch/powerpc/include/asm/systbl.h | 396 -------------------------- arch/powerpc/include/asm/unistd.h | 3 +- arch/powerpc/include/uapi/asm/Kbuild | 2 + arch/powerpc/include/uapi/asm/unistd.h | 389 +------------------------ arch/powerpc/kernel/Makefile | 10 - arch/powerpc/kernel/entry_64.S | 7 +- arch/powerpc/kernel/syscalls/Makefile | 63 ++++ arch/powerpc/kernel/syscalls/syscall.tbl | 427 ++++++++++++++++++++++++++++ arch/powerpc/kernel/syscalls/syscallhdr.sh | 37 +++ arch/powerpc/kernel/syscalls/syscalltbl.sh | 36 +++ arch/powerpc/kernel/systbl.S | 40 ++- arch/powerpc/kernel/systbl_chk.c | 60 ---- arch/powerpc/kernel/vdso.c | 7 +- arch/powerpc/platforms/cell/spu_callbacks.c | 17 +- 17 files changed, 606 insertions(+), 898 deletions(-) delete mode 100644 arch/powerpc/include/asm/systbl.h create mode 100644 arch/powerpc/kernel/syscalls/Makefile create mode 100644 arch/powerpc/kernel/syscalls/syscall.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_chk.c -- 1.9.1