[OE-core] [PATCH] lttng-modules: build as 64-bit kernel module on e6500

[zhenhua.luo at freescale.com]

"64b kernel + 32b userspace" is a scenario of e6500 targets specific to FSL QorIQ SDK, so the change should be located in SDK layer instead of a common layer. 


Best Regards,

Zhenhua

> -----Original Message-----
> From: Chunrong Guo [mailto:B40290 at freescale.com]
> Sent: Friday, December 13, 2013 3:07 PM
> To: openembedded-core at lists.openembedded.org
> Cc: Liu Ting-B28495; Luo Zhenhua-B19537; Guo Chunrong-B40290; Guo
> Chunrong-B40290
> Subject: [OE-core][PATCH] lttng-modules: build as 64-bit kernel module on
> e6500
> 
>    *e6500 is built with 32b rootfs/64b kernel, build lttng-modules as
> 64bit too.
>    *Fix the below build issue on e6500 core:
>     | DEBUG: Executing shell function do_make_scripts
>     | make: Entering directory `.../tmp/sysroots/t4240qds/usr/src/kernel'
>     | CC scripts/mod/empty.o | scripts/mod/empty.c:1:0: error: -mcmodel
> not supported in this configuration
>     | make[2]: *** [scripts/mod/empty.o] Error 1
>     | make[1]: *** [scripts/mod] Error 2
>     | make: *** [scripts] Error 2
> 
> Signed-off-by: Chunrong Guo <B40290 at freescale.com>
> ---
>  meta/recipes-kernel/lttng/lttng-modules_2.3.3.bb |   12 ++++++++++++
>  1 files changed, 12 insertions(+), 0 deletions(-)
> 
> diff --git a/meta/recipes-kernel/lttng/lttng-modules_2.3.3.bb
> b/meta/recipes-kernel/lttng/lttng-modules_2.3.3.bb
> index dd06546..2a48c1a 100644
> --- a/meta/recipes-kernel/lttng/lttng-modules_2.3.3.bb
> +++ b/meta/recipes-kernel/lttng/lttng-modules_2.3.3.bb
> @@ -22,6 +22,18 @@ export KERNEL_SRC="${STAGING_KERNEL_DIR}"
> 
>  S = "${WORKDIR}/git"
> 
> +# Build as 64-bit kernel module on e6500 python () {
> +
> +    promote_kernel = d.getVar('BUILD_64BIT_KERNEL')
> +
> +    if promote_kernel == "1":
> +        d.setVar('KERNEL_CC_append', ' -m64')
> +        d.setVar('KERNEL_LD_append', ' -melf64ppc')
> +
> +}
> +
> +
>  do_install_append() {
>  	# Delete empty directories to avoid QA failures if no modules were
> built
>  	find ${D}/lib -depth -type d -empty -exec rmdir {} \;
> --
> 1.7.5.4
>