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[209.132.180.67]) by mx.google.com with ESMTP id n2-v6si6974728pgu.103.2018.09.14.01.39.09; Fri, 14 Sep 2018 01:39:09 -0700 (PDT) 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=eUA2nLyG; 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 S1728095AbeINNwc (ORCPT + 32 others); Fri, 14 Sep 2018 09:52:32 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:41576 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727872AbeINNwc (ORCPT ); Fri, 14 Sep 2018 09:52:32 -0400 Received: by mail-pf1-f195.google.com with SMTP id h79-v6so3974871pfk.8 for ; Fri, 14 Sep 2018 01:39:05 -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=8sjNGCK0zN8Sat8B+C2dpluIvjVDRmCNhIkEV3iqyxk=; b=eUA2nLyGRnjctydMlUwUjC3Zxsc9DA/J82h+uIGSi8+vWSqmJzyxPAKSxM7bMEnzVx fo63TbdMJV6SK1XpOEl6tZcYIRV27B+Mr+7vi4jcILUDLv58yf2sox7cYv9pe9tAlqZf yWkBCl7erYbgqzh9BsfPxeARsAUhX+mkhWxcM= 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=8sjNGCK0zN8Sat8B+C2dpluIvjVDRmCNhIkEV3iqyxk=; b=Ddq1f5wbuDLISZDfh2HGzk9CkmGV+SH7dYp9K8WEkjIgLu+STvhIBYnlh01iC/uxY8 cL4CcOl67vbnglwidzhkWZf/cTKIEnIMugr6enWK6NLW2FJyZVrOgxoikS2ccqx5ss88 RskupotbSm4gfvzhfrcDKxD72/ffcJloPkEh7vjVcUioYOVLvOIqzbDC/LfLTBZPTDqf ARavl0ftSW4c080OTils627VqM4xek2yJs066I2dvVXAkAjzQbvtdY06RRUvM760oo9h slRWCN5h+belhDkgycjLdz3MIDCm8ROMX9CoCBpnJ3I+G8XxXS2Z+d3nwJ/BqxziVbSX jmcw== X-Gm-Message-State: APzg51BCB0gb7w7im2Ip388dXygmZvPoneFRhO/6Z9EhokbBsfueJkam MrkCFQ/ocGK59DYQr1Vd05xg/g== X-Received: by 2002:a63:6746:: with SMTP id b67-v6mr10773208pgc.330.1536914345455; Fri, 14 Sep 2018 01:39:05 -0700 (PDT) Received: from qualcomm-HP-ZBook-14-G2.domain.name ([49.207.60.83]) by smtp.gmail.com with ESMTPSA id c1-v6sm11664289pfg.25.2018.09.14.01.38.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 14 Sep 2018 01:39:04 -0700 (PDT) From: Firoz Khan To: Hauke Mehrtens , =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= , linux-mips@linux-mips.org, Ralf Baechle , Paul Burton , James Hogan , 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 0/3] System call table generation support Date: Fri, 14 Sep 2018 14:08:31 +0530 Message-Id: <1536914314-5026-1-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, powerpc, 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): mips: Add __NR_syscalls macro in uapi/asm/unistd.h mips: Add system call table generation support mips: uapi header and system call table file generation arch/mips/Makefile | 3 + arch/mips/include/asm/Kbuild | 4 + arch/mips/include/uapi/asm/Kbuild | 3 + arch/mips/include/uapi/asm/unistd.h | 1053 +---------------------------- arch/mips/kernel/scall32-o32.S | 385 +---------- arch/mips/kernel/scall64-64.S | 334 +-------- arch/mips/kernel/scall64-n32.S | 337 +-------- arch/mips/kernel/scall64-o32.S | 374 +--------- arch/mips/kernel/syscall_table_32_o32.S | 8 + arch/mips/kernel/syscall_table_64_64.S | 9 + arch/mips/kernel/syscall_table_64_n32.S | 8 + arch/mips/kernel/syscall_table_64_o32.S | 9 + arch/mips/kernel/syscalls/Makefile | 62 ++ arch/mips/kernel/syscalls/README.md | 16 + arch/mips/kernel/syscalls/syscall_32.tbl | 375 ++++++++++ arch/mips/kernel/syscalls/syscall_64.tbl | 335 +++++++++ arch/mips/kernel/syscalls/syscall_n32.tbl | 339 ++++++++++ arch/mips/kernel/syscalls/syscallhdr.sh | 37 + arch/mips/kernel/syscalls/syscalltbl.sh | 44 ++ 19 files changed, 1268 insertions(+), 2467 deletions(-) create mode 100644 arch/mips/kernel/syscall_table_32_o32.S create mode 100644 arch/mips/kernel/syscall_table_64_64.S create mode 100644 arch/mips/kernel/syscall_table_64_n32.S create mode 100644 arch/mips/kernel/syscall_table_64_o32.S create mode 100644 arch/mips/kernel/syscalls/Makefile create mode 100644 arch/mips/kernel/syscalls/README.md create mode 100644 arch/mips/kernel/syscalls/syscall_32.tbl create mode 100644 arch/mips/kernel/syscalls/syscall_64.tbl create mode 100644 arch/mips/kernel/syscalls/syscall_n32.tbl create mode 100644 arch/mips/kernel/syscalls/syscallhdr.sh create mode 100644 arch/mips/kernel/syscalls/syscalltbl.sh -- 1.9.1