linux-kernel - Re: OOT build fails on x86_64 due to missing asm/unisd

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Date:	Mon, 15 Jul 2013 21:43:56 +0200
From:	Peter Wu <lekensteyn@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: OOT build fails on x86_64 due to missing asm/unisd_64.h

On Monday 15 July 2013 12:40:59 H. Peter Anvin wrote:
> In a clean directory?

That's a fast reply! While trying to reproduce after sending out the mail, I
noticed this line:
$ (cd ~/Linux-src/linux/;git clean -xfd)
Removing arch/x86/include/generated/
warning: failed to remove arch/x86/include/generated/

Somehow that directory got root owned and I was unable to remove it without
using root power. After removing it, the build completes succesfully.

Sorry for the noise!

Thanks,
Peter

> Peter Wu <lekensteyn@...il.com> wrote:
> >Hi,
> >
> >When I tried to build v3.11-rc1-8-g47188d3 out-of-tree, I get an error
> >about a
> >missing asm/unistd_64.h file. The full build output (`git clean -xfd`
> >was ran
> >before baking the kernel):
> >
> >/home/me/Linux-src/build$ make O=$PWD -C ../linux -j8
> >make: Entering directory `/home/me/Linux-src/linux'
> >/home/me/Linux-src/linux/arch/x86/Makefile:107: CONFIG_X86_X32 enabled
> >but no binutils support
> >make[2]: Nothing to be done for `all'.
> >
> >  GEN     /tmp/build/Makefile
> >  CHK     include/generated/uapi/linux/version.h
> >
> >make[2]: Nothing to be done for `relocs'.
> >
> >  Using /home/me/Linux-src/linux as source for kernel
> >  CHK     include/generated/utsrelease.h
> >  UPD     include/generated/utsrelease.h
> >  CC      kernel/bounds.s
> >  GEN     include/generated/bounds.h
> >  CC      arch/x86/kernel/asm-offsets.s
> >
> >In file included from
> >/home/me/Linux-src/linux/include/uapi/linux/unistd.h:7:0,
> >
> >     from /home/me/Linux-src/linux/arch/x86/include/asm/seccomp_64.h:4,
> >     
> >        from /home/me/Linux-src/linux/arch/x86/include/asm/seccomp.h:4,
> >        
> >               from /home/me/Linux-src/linux/include/linux/seccomp.h:9,
> >               
> >                from /home/me/Linux-src/linux/include/linux/sched.h:39,
> >         
> >         from /home/me/Linux-src/linux/arch/x86/kernel/asm-offsets.c:9:
> >/home/me/Linux-src/linux/arch/x86/include/asm/unistd.h:23:29: fatal
> >error: asm/unistd_64.h: No such file or directory
> >compilation terminated.
> >make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1
> >make[1]: *** [prepare0] Error 2
> >make: *** [sub-make] Error 2
> >make: Leaving directory `/home/me/Linux-src/linux'
> >
> >
> >
> >As a workaround, I rsync the files that are placed in the source tree:
> >
> >~/Linux-src/linux/arch/x86/include/generated$ rsync -av .
> >/tmp/build/arch/x86/include/generated/
> >sending incremental file list
> >./
> >asm/
> >asm/syscalls_32.h
> >uapi/
> >uapi/asm/
> >uapi/asm/unistd_32.h
> >uapi/asm/unistd_64.h
> >
> >uapi/asm/unistd_x32.h
> >
> >
> >I have encountered this error some releases back, and some others
> >reported
> >this before[1]. If you need more details (.config?), please ask.
> >
> >Regards,
> >Peter
> >
> > [1]: http://lkml.org/lkml/2012/3/19/680
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