On Tue, Apr 21, 2020 at 5:37 AM Dan Callaghan
<dan.callag...@opengear.com> wrote:
>
> We need to copy include/config/auto.conf into ${STAGING_KERNEL_BUILDDIR}
> to avoid module compilation errors like this:
>
> | make[1]: Entering directory
> 'build/tmp-glibc/work-shared/machine/kernel-source'
> | make[2]: Entering directory
> 'build/tmp-glibc/work-shared/machine/kernel-build-artifacts'
> |
> | ERROR: Kernel configuration is invalid.
> | include/generated/autoconf.h or include/config/auto.conf are
> missing.
> | Run 'make oldconfig && make prepare' on kernel src to fix it.
> |
> | make[2]: ***
> [build/tmp-glibc/work-shared/machine/kernel-source/Makefile:641:
> include/config/auto.conf] Error 1
>
> We also need scripts/basic/fixdep to avoid errors like this:
>
> | make[1]: Entering directory
> 'build/tmp-glibc/work-shared/machine/kernel-source'
> | make[2]: Entering directory
> 'build/tmp-glibc/work-shared/machine/kernel-build-artifacts'
> | CC [M]
> build/tmp-glibc/work/vendor-linux/tehuti-module/0.3.6-r0/git/TLK10232_phy_Linux.o
> | /bin/sh: scripts/basic/fixdep: No such file or directory
> | make[3]: ***
> [build/tmp-glibc/work-shared/machine/kernel-source/scripts/Makefile.build:303:
>
> build/tmp-glibc/work/vendor-linux/tehuti-module/0.3.6-r0/git/TLK10232_phy_Linux.o]
> Error 127
>
> And scripts/mod/modpost to avoid errors like this:
>
> | Building modules, stage 2.
> | MODPOST 1 modules
> | /bin/sh: scripts/mod/modpost: No such file or directory
> | make[3]: ***
> [build/tmp-glibc/work-shared/machine/kernel-source/scripts/Makefile.modpost:92:
> __modpost] Error 127
>
> Most of the time, the absence of these files is masked by the
> make-mod-scripts recipe's do_configure task, which causes a whole bunch
> of extra files to be built into ${STAGING_KERNEL_BUILDDIR} (including
> these two). Typically make-mod-scripts will be built before any kernel
> modules, and so it didn't matter that do_shared_workdir was missing
> these files.
>
The design is that, make-mod-scripts is what provides those files, we
don't want to copy them, since it is an ever incomplete list (more so
in the past, but the concept still holds).
> However the problem will be evident if you do certain sequences of
> tasks, for example a complete build first (so that make-mod-scripts is
> already built), then:
>
> bitbake linux-yocto my-kernel-module -c clean
> bitbake my-kernel-module -c install
Why can't we fix the dependency ? We chased a few of these around when
the mod-scripts recipe was introduced, and this just looks like a
variant we missed.
Bruce
>
> Signed-off-by: Dan Callaghan <dan.callag...@opengear.com>
> ---
> meta/classes/kernel.bbclass | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
> index a724645466..5a49d01aa5 100644
> --- a/meta/classes/kernel.bbclass
> +++ b/meta/classes/kernel.bbclass
> @@ -452,6 +452,7 @@ do_shared_workdir () {
> cp .config $kerneldir/
> mkdir -p $kerneldir/include/config
> cp include/config/kernel.release
> $kerneldir/include/config/kernel.release
> + cp include/config/auto.conf $kerneldir/include/config/
> if [ -e certs/signing_key.x509 ]; then
> # The signing_key.* files are stored in the certs/ dir in
> # newer Linux kernels
> @@ -460,6 +461,10 @@ do_shared_workdir () {
> elif [ -e signing_key.priv ]; then
> cp signing_key.* $kerneldir/
> fi
> + mkdir -p $kerneldir/scripts/basic
> + cp scripts/basic/fixdep $kerneldir/scripts/basic/
> + mkdir -p $kerneldir/scripts/mod
> + cp scripts/mod/modpost $kerneldir/scripts/mod/
>
> # We can also copy over all the generated files and avoid special
> cases
> # like version.h, but we've opted to keep this small until file creep
> starts
> --
> 2.21.1
>
>
--
- Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end
- "Use the force Harry" - Gandalf, Star Trek II
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