kernel/seccomp.c:55:23: error: 'NR_syscalls' undeclared

Will Drewry wad at
Wed Nov 16 19:02:13 UTC 2011

(Just for some extra background: For arm, this will disappear with the
staged patchsets Kees pulled together. I realized this too and moved
from the custom array based data structure to a btree so only ftrace
filtering uses NR_syscalls.)


On Wed, Nov 16, 2011 at 12:52 PM, Kees Cook <keescook at> wrote:
> Hi,
> Oh, er, I thought Tim was doing the seccomp rebase from what I had in
> which (I think)
> fixed the NR_syscalls problem.
> Or is that where you were already working from?
> -Kees
> On Wed, Nov 16, 2011 at 10:43 AM, Leann Ogasawara
> <leann.ogasawara at> wrote:
>> Hi Kees and Will,
>> I recently rebased the ubuntu-precise git tree to upstream v3.2-rc2.
>> Unfortunately when doing some test cross-compiles on arm I hit the
>> following build failure:
>> kernel/seccomp.c: In function '__secure_computing':
>> kernel/seccomp.c:55:23: error: 'NR_syscalls' undeclared (first use in this function)
>> kernel/seccomp.c:55:23: note: each undeclared identifier is reported only once for each function it appears in
>> make[3]: *** [kernel/seccomp.o] Error 1
>> This is actually the same build error we were seeing in Oneiric when
>> trying to enable seccomp on arm [1].  Care to send a patch to fix this
>> up?  For now I've temporarily disabled the seccomp patches on arm in our
>> ubuntu-precise git repo.
>> Thanks,
>> Leann
>> [1]
> --
> Kees Cook
> ChromeOS Security

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