From: Mathias Krause Subject: Re: linux-next: Tree for November 29 (aesni-intel) Date: Mon, 29 Nov 2010 21:02:16 +0100 Message-ID: References: <4CF3F6CB.8080904@oracle.com> <1291058505-9384-1-git-send-email-minipli@googlemail.com> <4CF3FFAE.40906@oracle.com> <45B80502-8597-4650-990F-F23B4FC751B8@googlemail.com> <4CF40504.5060506@oracle.com> Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8BIT Cc: Herbert Xu , Stephen Rothwell , Huang Ying , Vinodh Gopal , linux-next@vger.kernel.org, LKML , linux-crypto@vger.kernel.org To: Randy Dunlap Return-path: In-Reply-To: <4CF40504.5060506@oracle.com> Sender: linux-next-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org On 29.11.2010, 20:54 Randy Dunlap wrote: > On 11/29/10 11:45, Mathias Krause wrote: >> On 29.11.2010, 20:31 Randy Dunlap wrote: >>> On 11/29/10 11:21, Mathias Krause wrote: >>>> On 29.11.2010, 19:54 Randy Dunlap wrote: >>>>> On 11/29/10 10:26, Mathias Krause wrote: >>>>>> On 29.11.2010, 17:31 Randy Dunlap wrote: >>>>>>> On Mon, 29 Nov 2010 14:03:35 +1100 Stephen Rothwell wrote: >>>>>>> >>>>>>>> Hi all, >>>>>>>> >>>>>>>> Changes since 20101126: >>>>>>> >>>>>>> >>>>>>> on i386 builds, I get tons of these (and more) errors: >>>>>>> >>>>>>> arch/x86/crypto/aesni-intel_asm.S:841: Error: bad register name `%r12' >>>>>>> arch/x86/crypto/aesni-intel_asm.S:842: Error: bad register name `%r13' >>>>>>> arch/x86/crypto/aesni-intel_asm.S:843: Error: bad register name `%r14' >>>>>>> arch/x86/crypto/aesni-intel_asm.S:844: Error: bad register name `%rsp' >>>>>>> arch/x86/crypto/aesni-intel_asm.S:849: Error: bad register name `%rsp' >>>>>>> arch/x86/crypto/aesni-intel_asm.S:850: Error: bad register name `%rsp' >>>>>>> arch/x86/crypto/aesni-intel_asm.S:851: Error: bad register name `%r9' >>>>>>> >>>>>>> even though the kernel .config file says: >>>>>>> >>>>>>> CONFIG_CRYPTO_AES=m >>>>>>> CONFIG_CRYPTO_AES_586=m >>>>>>> CONFIG_CRYPTO_AES_NI_INTEL=m >>>>>>> >>>>>>> Should arch/x86/crypto/aesni-intel_asm.S be testing >>>>>>> #ifdef CONFIG_X86_64 >>>>>>> instead of >>>>>>> #ifdef __x86_64__ >>>>>>> or does that not matter? >>>>>>> >>>>>>> or is this a toolchain issue? >>>>>> >>>>>> Well, __x86_64__ should be a build-in define of the compiler while >>>>>> CONFIG_X86_64 is defined for 64 bit builds in include/generated/autoconf.h. >>>>>> So by using the latter we should be on the safe side but if your compiler >>>>>> defines __x86_64__ for 32-bit builds it's simply broken. Also git grep >>>>>> showed quite a few more places using __x86_64__ so those would miscompile on >>>>>> your toolchain, too. >>>>>> >>>>>> But it looks like linux-next is just missing >>>>>> 559ad0ff1368baea14dbc3207d55b02bd69bda4b from Herbert's git repo at >>>>>> git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git. >>>>>> That should fix the build issue. >>>>> >>>>> The build problem still happens when that patch is applied. >>>> >>>> That's weird. So it must be something with your toolchain. >>>> Can you please post the output of the following commands?: >>>> >>>> $ touch /tmp/null.c; cc -m32 -dD -E /tmp/null.c | grep -E 'x86|i.86' >>> >>> #define __i386 1 >>> #define __i386__ 1 >>> #define i386 1 >>> #define __i586 1 >>> #define __i586__ 1 >>> >>>> $ touch /tmp/null.c; cc -m64 -dD -E /tmp/null.c | grep -E 'x86|i.86' >>> >>> #define __x86_64 1 >>> #define __x86_64__ 1 >>> >>> So that's not the problem... and the patch below didn't help. >> >> That's odd. The output of the commands looks good so the x86-64 specific code >> should be left out for 32-bit builds. :/ >> >>> Sorry that I even asked about that. What next? >> >> Can you please post the full error message. Meanwhile I'm checking out a >> linux-next tree, trying to reproduce your problem. >> > > I just built with "make V=1" to see the full commands that are used, but > that didn't help me either: > > gcc -Wp,-MD,arch/x86/crypto/.aesni-intel_asm.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.4.1/include -I/lnx/src/NEXT/linux-next-20101129/arch/x86/include -Iinclude -I/lnx/src/NEXT/linux-next-20101129/include -include include/generated/autoconf.h -D__KERNEL__ -D__ASSEMBLY__ -m32 -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DMODULE -c -o arch/x86/crypto/aesni-intel_asm.o /lnx/src/NEXT/linux-next-20101129/arch/x86/crypto/aesni-intel_asm.S > > > There are 2945 lines like this: > > linux-next-20101129/arch/x86/crypto/aesni-intel_asm.S:841: Error: bad register name `%r12' Well, in my tree (linux-next + 559ad0ff) line 841 is a comment. Albeit without 559ad0ff it's a 'push %r12'. So maybe you should apply the patch just once more to be sure. ;) > It's around 311 KB, so I'll just put it here instead of emailing it: > http://oss.oracle.com/~rdunlap/doc/cry32.out > > -- > ~Randy > *** Remember to use Documentation/SubmitChecklist when testing your code ***