linux-kernel - Re: [PATCHv10 2/5] x86: Hook up execveat system call.

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Date:	Mon, 24 Nov 2014 19:53:03 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Dan Carpenter <dan.carpenter@...cle.com>
cc:	David Drysdale <drysdale@...gle.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andy Lutomirski <luto@...capital.net>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Meredydd Luff <meredydd@...atehouse.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Oleg Nesterov <oleg@...hat.com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Kees Cook <keescook@...omium.org>,
	Arnd Bergmann <arnd@...db.de>, Rich Felker <dalias@...ifal.cx>,
	Christoph Hellwig <hch@...radead.org>, x86@...nel.org,
	linux-arch@...r.kernel.org, linux-api@...r.kernel.org,
	sparclinux@...r.kernel.org
Subject: Re: [PATCHv10 2/5] x86: Hook up execveat system call.

On Mon, 24 Nov 2014, Dan Carpenter wrote:

> On Mon, Nov 24, 2014 at 11:53:56AM +0000, David Drysdale wrote:
> > Hook up x86-64, i386 and x32 ABIs.
> > 
> > Signed-off-by: David Drysdale <drysdale@...gle.com>
> 
> This one has been breaking my linux-next build for the past week.  I'm
> not sure what's going on.  I build with a script:
> 
> make allmodconfig
> 
> cat << EOF >> .config
> CONFIG_DYNAMIC_DEBUG=n
> CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=n
> CONFIG_DYNAMIC_DEBUG=y
> EOF
> 
> make oldconfig
> 
> Here are the errors:
> 
>   CHK     include/generated/compile.h
>   CHECK   arch/x86/ia32/audit.c
>   CC      arch/x86/ia32/audit.o
> arch/x86/ia32/audit.c: In function ‘ia32_classify_syscall’:
> arch/x86/ia32/audit.c:38:7: error: ‘__NR_execveat’ undeclared (first use in this function)
> arch/x86/ia32/audit.c:38:7: note: each undeclared identifier is reported only once for each function it appears in
> make[2]: *** [arch/x86/ia32/audit.o] Error 1
> make[2]: Target `__build' not remade because of errors.
> make[1]: *** [arch/x86/ia32] Error 2
>   CHECK   arch/x86/kernel/audit_64.c
>   CHK     kernel/config_data.h
>   CC      arch/x86/kernel/audit_64.o
> arch/x86/kernel/audit_64.c: In function ‘audit_classify_syscall’:
> arch/x86/kernel/audit_64.c:53:7: error: ‘__NR_execveat’ undeclared (first use in this function)
> arch/x86/kernel/audit_64.c:53:7: note: each undeclared identifier is reported only once for each function it appears in
> make[2]: *** [arch/x86/kernel/audit_64.o] Error 1
> make[2]: Target `__build' not remade because of errors.
> make[1]: *** [arch/x86/kernel] Error 2
> make[1]: Target `__build' not remade because of errors.

I don't know what you're doing.

Tried the above and it rebuilds the relevant unistd*.h files and
compiles happily.

Thanks,

	tglx