Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754729AbaJHUrH (ORCPT ); Wed, 8 Oct 2014 16:47:07 -0400 Received: from mail-oi0-f54.google.com ([209.85.218.54]:48387 "EHLO mail-oi0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754471AbaJHUrF (ORCPT ); Wed, 8 Oct 2014 16:47:05 -0400 Date: Wed, 8 Oct 2014 15:46:59 -0500 From: Chuck Ebbert To: Andy Lutomirski Cc: Josh Boyer , Peter Foley , Randy Dunlap , Jiri Kosina , "H. Peter Anvin" , "Linux-Kernel@Vger. Kernel. Org" , Linus Torvalds Subject: Re: vdso_standalone_test_x86.c build failure on Linus' tree Message-ID: <20141008154659.31f46436@as> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 8 Oct 2014 12:16:11 -0700 Andy Lutomirski wrote: > On Wed, Oct 8, 2014 at 11:52 AM, Josh Boyer wrote: > > I'm seeing the following build failure on a 32-bit x86 build in Fedora > > based on Linux v3.17-2860-gef0625b70dac: > > > > Documentation/vDSO/vdso_standalone_test_x86.o: In function `to_base10': > > vdso_standalone_test_x86.c:(.text+0xcc): undefined reference to `__umoddi3' > > vdso_standalone_test_x86.c:(.text+0xea): undefined reference to `__udivdi3' > > collect2: error: ld returned 1 exit status > > scripts/Makefile.host:100: recipe for target > > 'Documentation/vDSO/vdso_standalone_test_x86' failed > > make[2]: *** [Documentation/vDSO/vdso_standalone_test_x86] Error 1 > > scripts/Makefile.build:404: recipe for target 'Documentation/vDSO' failed > > make[1]: *** [Documentation/vDSO] Error 2 > > make[1]: *** Waiting for unfinished jobs.... > > Makefile:922: recipe for target 'vmlinux' failed > > make: *** [vmlinux] Error 2 > > > It should build and work on 32-bit. > > Except that the makefile is totally bogus. vdso_standalone_test isn't > a hostprog at all. It's a target prog. But kbuild doesn't understand > that, so I have no idea what, if anything, that makefile is supposed > to do. Heh, I was wondering why I got a 64-bit program with ARCH=i386 > I would argue that the whole documentation build system should be > fixed to cross-compile or should just be disabled for cross-builds if > glibc isn't available. > Fedora doesn't cross-compile i686 builds because of problems like this. It sets up an i386 chroot and runs all native tools inside of it. -- 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/