From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kees Cook Subject: Re: [PATCH v2 11/29] vmlinux.lds.h: Replace RODATA with RO_DATA Date: Mon, 11 Nov 2019 09:23:03 -0800 Message-ID: <201911110922.17A2112B0@keescook> References: <20191011000609.29728-1-keescook@chromium.org> <20191011000609.29728-12-keescook@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Geert Uytterhoeven Cc: Borislav Petkov , Rick Edgecombe , Dave Hansen , Andy Lutomirski , Arnd Bergmann , Michael Ellerman , Heiko Carstens , Will Deacon , Linux-Arch , Linux ARM , linuxppc-dev , alpha , "linux-ia64@vger.kernel.org" , linux-s390 , linux-c6x-dev@linux-c6x.org, Yoshinori Sato , Michal Simek , Parisc List , linux-xtensa@linux-xtensa.o List-Id: linux-arch.vger.kernel.org On Mon, Nov 11, 2019 at 05:58:06PM +0100, Geert Uytterhoeven wrote: > Hi Kees, > > On Fri, Oct 11, 2019 at 2:07 AM Kees Cook wrote: > > There's no reason to keep the RODATA macro: replace the callers with > > the expected RO_DATA macro. > > > > Signed-off-by: Kees Cook > > --- > > arch/alpha/kernel/vmlinux.lds.S | 2 +- > > arch/ia64/kernel/vmlinux.lds.S | 2 +- > > arch/microblaze/kernel/vmlinux.lds.S | 2 +- > > arch/mips/kernel/vmlinux.lds.S | 2 +- > > arch/um/include/asm/common.lds.S | 2 +- > > arch/xtensa/kernel/vmlinux.lds.S | 2 +- > > include/asm-generic/vmlinux.lds.h | 4 +--- > > 7 files changed, 7 insertions(+), 9 deletions(-) > > Somehow you missed: > > arch/m68k/kernel/vmlinux-std.lds: RODATA > arch/m68k/kernel/vmlinux-sun3.lds: RODATA Argh. I've sent a patch; sorry and thanks for catching this. For my own cross-build testing, which defconfig targets will hit these two linker scripts? -Kees > > Leading to build failures in next-20191111: > > /opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux-ld:./arch/m68k/kernel/vmlinux.lds:29: > syntax error > make[1]: *** [/kisskb/src/Makefile:1075: vmlinux] Error 1 > > Reported-by: noreply@ellerman.id.au > http://kisskb.ellerman.id.au/kisskb/buildresult/14022846/ > > Gr{oetje,eeting}s, > > Geert > > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds -- Kees Cook From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f193.google.com ([209.85.210.193]:33747 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727206AbfKKRXH (ORCPT ); Mon, 11 Nov 2019 12:23:07 -0500 Received: by mail-pf1-f193.google.com with SMTP id c184so11145986pfb.0 for ; Mon, 11 Nov 2019 09:23:06 -0800 (PST) Date: Mon, 11 Nov 2019 09:23:03 -0800 From: Kees Cook Subject: Re: [PATCH v2 11/29] vmlinux.lds.h: Replace RODATA with RO_DATA Message-ID: <201911110922.17A2112B0@keescook> References: <20191011000609.29728-1-keescook@chromium.org> <20191011000609.29728-12-keescook@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-arch-owner@vger.kernel.org List-ID: To: Geert Uytterhoeven Cc: Borislav Petkov , Rick Edgecombe , Dave Hansen , Andy Lutomirski , Arnd Bergmann , Michael Ellerman , Heiko Carstens , Will Deacon , Linux-Arch , Linux ARM , linuxppc-dev , alpha , "linux-ia64@vger.kernel.org" , linux-s390 , linux-c6x-dev@linux-c6x.org, Yoshinori Sato , Michal Simek , Parisc List , linux-xtensa@linux-xtensa.org, the arch/x86 maintainers , Linux Kernel Mailing List Message-ID: <20191111172303.mknV5zp1PeF3rIBzYcGA3fjvQ4vB7KGHjcgh8MpN0RQ@z> On Mon, Nov 11, 2019 at 05:58:06PM +0100, Geert Uytterhoeven wrote: > Hi Kees, > > On Fri, Oct 11, 2019 at 2:07 AM Kees Cook wrote: > > There's no reason to keep the RODATA macro: replace the callers with > > the expected RO_DATA macro. > > > > Signed-off-by: Kees Cook > > --- > > arch/alpha/kernel/vmlinux.lds.S | 2 +- > > arch/ia64/kernel/vmlinux.lds.S | 2 +- > > arch/microblaze/kernel/vmlinux.lds.S | 2 +- > > arch/mips/kernel/vmlinux.lds.S | 2 +- > > arch/um/include/asm/common.lds.S | 2 +- > > arch/xtensa/kernel/vmlinux.lds.S | 2 +- > > include/asm-generic/vmlinux.lds.h | 4 +--- > > 7 files changed, 7 insertions(+), 9 deletions(-) > > Somehow you missed: > > arch/m68k/kernel/vmlinux-std.lds: RODATA > arch/m68k/kernel/vmlinux-sun3.lds: RODATA Argh. I've sent a patch; sorry and thanks for catching this. For my own cross-build testing, which defconfig targets will hit these two linker scripts? -Kees > > Leading to build failures in next-20191111: > > /opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux-ld:./arch/m68k/kernel/vmlinux.lds:29: > syntax error > make[1]: *** [/kisskb/src/Makefile:1075: vmlinux] Error 1 > > Reported-by: noreply@ellerman.id.au > http://kisskb.ellerman.id.au/kisskb/buildresult/14022846/ > > Gr{oetje,eeting}s, > > Geert > > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds -- Kees Cook