[OE-core] [PATCH] module.bbclass: swap AR and LD order

[Christopher Larson]

What makefile change caused this? That behavior doesn't make much sense
given how make processes its command-line arguments.

On Thu, Jan 23, 2020 at 3:34 PM Jason Wessel <jason.wessel at windriver.com>
wrote:

> The 5.x kernels seem to have made a change to the linker command line
> processing.
>
> When trying to build out of tree kernel modules, such as the
> virtualbox guest additions, the following error is printed:
>
> | make[1]: Entering directory
> '/opt/build-x86-64/tmp/work/qemux86_64-poky-linux/vboxguestdrivers/6.1.2-r0/vbox_module/vboxvideo'
> | make[3]: Entering directory
> '/opt/build-x86-64/tmp/work-shared/qemux86-64/kernel-build-artifacts'
> | make V= CONFIG_MODULE_SIG= CONFIG_MODULE_SIG_ALL= -C
> /opt/build-x86-64/tmp/work/qemux86_64-poky-linux/vboxguestdrivers/6.1.2-r0/5.2.28-yocto-standard/build
> M=/opt/build-x86-64/tmp/work/qemux86_64-poky-linux/vboxguestdrivers/6.1.2-r0/vbox_module/vboxguest
> SRCROOT=/opt/build-x86-64/tmp/work/qemux86_64-poky-linux/vboxguestdrivers/6.1.2-r0/vbox_module/vboxguest
> modules
> | make[3]: Entering directory
> '/opt/build-x86-64/tmp/work-shared/qemux86-64/kernel-build-artifacts'
> |   LD [M]
> /opt/build-x86-64/tmp/work/qemux86_64-poky-linux/vboxguestdrivers/6.1.2-r0/vbox_module/vboxvideo/vboxvideo.o
> | x86_64-poky-linux-ld.bfd: cannot find AR=x86_64-poky-linux-ar: No such
> file or directory
>
> The AR arguments passed to the make command are being processed as
> command line arguments to the linker due to some changes in the
> kernel's Makefile.  For now the easiest fix is to just swap the
> arguments in the module.bbclass.
>
> Signed-off-by: Jason Wessel <jason.wessel at windriver.com>
> ---
>  meta/classes/module.bbclass | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/meta/classes/module.bbclass b/meta/classes/module.bbclass
> index c0dfa35061..e1e5fdaa72 100644
> --- a/meta/classes/module.bbclass
> +++ b/meta/classes/module.bbclass
> @@ -38,8 +38,7 @@ module_do_compile() {
>         unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
>         oe_runmake KERNEL_PATH=${STAGING_KERNEL_DIR}   \
>                    KERNEL_VERSION=${KERNEL_VERSION}    \
> -                  CC="${KERNEL_CC}" LD="${KERNEL_LD}" \
> -                  AR="${KERNEL_AR}" \
> +                  CC="${KERNEL_CC}" AR="${KERNEL_AR}" LD="${KERNEL_LD}" \
>                    O=${STAGING_KERNEL_BUILDDIR} \
>                    KBUILD_EXTRA_SYMBOLS="${KBUILD_EXTRA_SYMBOLS}" \
>                    ${MAKE_TARGETS}
> --
> 2.23.0
>
> --
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>


-- 
Christopher Larson
kergoth at gmail dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Senior Software Engineer, Mentor Graphics
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