[OE-core] [rocko][PATCH] glibc: Avoid multilibbing on wordsize.h

Daniel Díaz daniel.diaz at linaro.org
Thu Aug 9 17:10:58 UTC 2018


Hello!


On 26 July 2018 at 09:38, Daniel Díaz <daniel.diaz at linaro.org> wrote:
> Once another header #includes <bits/wordsize.h>, there is a
> potential recursion going on because the
> multilib_header_wrapper.h #includes <bits/wordsize.h> again!
>
> This should not happen because an __arm__ (32-bits) or an
> __aarch64__ (64-bits) environment guarantees that we will
> be getting the correct definition, but when building against
> a different target (like BPF), recursion is what happens.
>
> This can be seen, for instance, when building eBPF programs
> from the kernel with `clang -target bpf', such as the ones
> located in linux/tools/testing/selftests/bpf/.
>
> (From OE-Core rev: a74c77d6168101e88c3a3bce7130f4f52cfab95d)
>
> Signed-off-by: Daniel Díaz <daniel.diaz at linaro.org>
> Signed-off-by: Aníbal Limón <anibal.limon at linaro.org>
> Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
> ---
>  meta/recipes-core/glibc/glibc-package.inc | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/meta/recipes-core/glibc/glibc-package.inc b/meta/recipes-core/glibc/glibc-package.inc
> index b6d8074..c360dd9 100644
> --- a/meta/recipes-core/glibc/glibc-package.inc
> +++ b/meta/recipes-core/glibc/glibc-package.inc
> @@ -136,8 +136,7 @@ do_install_append_armeb () {
>  }
>
>  do_install_armmultilib () {
> -
> -       oe_multilib_header bits/endian.h bits/fcntl.h bits/fenv.h bits/fp-fast.h bits/hwcap.h bits/ipc.h bits/link.h bits/wordsize.h
> +       oe_multilib_header bits/endian.h bits/fcntl.h bits/fenv.h bits/fp-fast.h bits/hwcap.h bits/ipc.h bits/link.h
>         oe_multilib_header bits/local_lim.h bits/mman.h bits/msq.h bits/pthreadtypes.h bits/pthreadtypes-arch.h  bits/sem.h  bits/semaphore.h bits/setjmp.h
>         oe_multilib_header bits/shm.h bits/sigstack.h bits/stat.h bits/statfs.h bits/typesizes.h
>
> --
> 2.7.4


Please disregard this patch. An alternative will be posted shortly.

Greetings!

Daniel Díaz
daniel.diaz at linaro.org



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