Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933131AbXAWUuc (ORCPT ); Tue, 23 Jan 2007 15:50:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933132AbXAWUuc (ORCPT ); Tue, 23 Jan 2007 15:50:32 -0500 Received: from mx1.redhat.com ([66.187.233.31]:58313 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933131AbXAWUub (ORCPT ); Tue, 23 Jan 2007 15:50:31 -0500 Date: Tue, 23 Jan 2007 15:50:18 -0500 From: Jakub Jelinek To: Samium Gromoff <_deepfire@feelingofgreen.ru> Cc: Alan , Pavel Machek , Valdis.Kletnieks@vt.edu, David Wagner , linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] Define the EF_AS_NO_RANDOM e_flag bit Message-ID: <20070123205017.GH29911@devserv.devel.redhat.com> Reply-To: Jakub Jelinek References: <87r6toufpp.wl@betelheise.deep.net> <200701221520.l0MFKLdK032645@turing-police.cc.vt.edu> <871wlnq7ue.wl@betelheise.deep.net> <20070123084805.GB5560@ucw.cz> <87mz4996wg.wl@betelheise.deep.net> <20070123154127.57059632@localhost.localdomain> <877ivd8p42.wl@betelheise.deep.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <877ivd8p42.wl@betelheise.deep.net> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1978 Lines: 44 On Tue, Jan 23, 2007 at 11:28:13PM +0300, Samium Gromoff wrote: > Author: Samium Gromoff > Date: Tue Jan 23 22:31:13 2007 +0300 > > Define the ELF binary header flag EF_AS_NO_RANDOM > > EF_AS_NO_RANDOM should mean that the binary requests to not apply > randomisation to address spaces of its processes. > > diff --git a/include/linux/elf.h b/include/linux/elf.h > index 60713e6..58ebb47 100644 > --- a/include/linux/elf.h > +++ b/include/linux/elf.h > @@ -172,6 +172,8 @@ typedef struct elf64_sym { > > #define EI_NIDENT 16 > > +#define EF_AS_NO_RANDOM 0x1 /* do not randomise the address space */ > + You can't make up EF_* flags this way, they are arch specific, the LSB bit (but many others too) are already used on many architectures. E.g.: elf/mt.h:#define EF_MT_CPU_MRISC 0x00000001 /* default */ elf/sparc.h:#define EF_SPARCV9_PSO 0x1 /* partial store ordering */ elf/bfin.h:#define EF_BFIN_PIC 0x00000001 /* -fpic */ elf/alpha.h:#define EF_ALPHA_32BIT 0x00000001 elf/mips.h:#define EF_MIPS_NOREORDER 0x00000001 elf/m68k.h:#define EF_M68K_CF_ISA_A_NODIV 0x01 /* ISA A except for div */ elf/sh.h:#define EF_SH1 1 elf/arm.h:#define EF_ARM_RELEXEC 0x01 elf/cris.h:#define EF_CRIS_UNDERSCORE 0x00000001 elf/ia64.h:#define EF_IA_64_TRAPNIL (1 << 0) /* Trap NIL pointer dereferences. */ elf/vax.h:#define EF_VAX_NONPIC 0x0001 /* Object contains non-PIC code */ elf/iq2000.h:#define EF_IQ2000_CPU_IQ2000 0x00000001 /* default */ elf/frv.h:#define EF_FRV_GPR_32 0x00000001 /* -mgpr-32 */ to name just a few. Jakub - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/