From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262169AbTD3NaO (ORCPT ); Wed, 30 Apr 2003 09:30:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262170AbTD3NaO (ORCPT ); Wed, 30 Apr 2003 09:30:14 -0400 Received: from 237.oncolt.com ([213.86.99.237]:18940 "EHLO warthog.warthog") by vger.kernel.org with ESMTP id S262169AbTD3NaN (ORCPT ); Wed, 30 Apr 2003 09:30:13 -0400 From: David Howells To: torvalds@transmeta.com cc: linux-kernel@vger.kernel.org Subject: [PATCH] put sys_call_table into R/O data User-Agent: EMH/1.14.1 SEMI/1.14.4 (Hosorogi) FLIM/1.14.4 (=?ISO-8859-4?Q?Kashiharajing=FE-mae?=) APEL/10.4 Emacs/21.2 (i386-redhat-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.4 - "Hosorogi") Content-Type: text/plain; charset=US-ASCII Date: Wed, 30 Apr 2003 14:42:25 +0100 Message-ID: <25720.1051710145@warthog.warthog> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, Here's a patch that puts the system call table into the R/O data section of the i386. David diff -uNr -x'*.o' -x'.*' -xTAGS linux-2.5.67/arch/i386/kernel/entry.S linux-2.5.67-afs/arch/i386/kernel/entry.S --- linux-2.5.67/arch/i386/kernel/entry.S 2003-03-28 11:37:52.000000000 +0000 +++ linux-2.5.67-afs/arch/i386/kernel/entry.S 2003-04-30 14:38:32.000000000 +0100 @@ -582,8 +582,8 @@ pushl $do_spurious_interrupt_bug jmp error_code -.data -ENTRY(sys_call_table) +.section .rodata +sys_call_table: .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ .long sys_exit .long sys_fork @@ -852,6 +852,6 @@ .long sys_clock_gettime /* 265 */ .long sys_clock_getres .long sys_clock_nanosleep - - + + nr_syscalls=(.-sys_call_table)/4