Re: [PATCH v2] kernel-devsrc: restructure for out of tree (and on target) module builds

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Thu, 2018-07-12 at 09:49 -0400, Bruce Ashfield wrote:
> On 2018-07-10 5:41 PM, Richard Purdie wrote:
> > On Tue, 2018-07-10 at 12:38 -0400, Bruce Ashfield wrote:
> > > On 07/10/2018 06:21 AM, Richard Purdie wrote:
> > > > On Mon, 2018-07-09 at 11:53 -0400, Bruce Ashfield wrote:
> > > 
> > > I'll try the other configs, but clearly I have something
> > > different in
> > > my x86-64 build.
> > > 
> > > I can't run the self tests directly, but am copying the files
> > > onto my
> > > qemu session and running things myself:
> > > 
> > > root@qemux86-64:/lib/modules/4.14.48-yocto-standard/build# make
> > > ARCH=x86
> > > scripts prepare
> > > Makefile:950: "Cannot use CONFIG_STACK_VALIDATION=y, please
> > > install
> > > libelf-dev, libelf-devel or elfutils-libelf-devel"
> > >     CHK     scripts/mod/devicetable-offsets.h
> > >     SYSTBL  arch/x86/include/generated/asm/syscalls_32.h
> > >     SYSHDR  arch/x86/include/generated/asm/unistd_32_ia32.h
> > >     SYSHDR  arch/x86/include/generated/asm/unistd_64_x32.h
> > >     SYSTBL  arch/x86/include/generated/asm/syscalls_64.h
> > >     SYSHDR  arch/x86/include/generated/uapi/asm/unistd_32.h
> > >     SYSHDR  arch/x86/include/generated/uapi/asm/unistd_64.h
> > >     SYSHDR  arch/x86/include/generated/uapi/asm/unistd_x32.h
> > >     HOSTCC  arch/x86/tools/relocs_32.o
> > >     HOSTCC  arch/x86/tools/relocs_64.o
> > >     HOSTCC  arch/x86/tools/relocs_common.o
> > >     HOSTLD  arch/x86/tools/relocs
> > >     CHK     include/config/kernel.release
> > >     CHK     include/generated/uapi/linux/version.h
> > >     CHK     include/generated/utsrelease.h
> > > Makefile:950: "Cannot use CONFIG_STACK_VALIDATION=y, please
> > > install
> > > libelf-dev, libelf-devel or elfutils-libelf-devel"
> > > 
> > > root@qemux86-64:/tmp# make
> > > make -C /usr/src/kernel M=/tmp modules
> > > make[1]: Entering directory '/lib/modules/4.14.48-yocto-
> > > standard/build'
> > > Makefile:950: "Cannot use CONFIG_STACK_VALIDATION=y, please
> > > install
> > > libelf-dev, libelf-devel or elfutils-libelf-devel"
> > >     Building modules, stage 2.
> > >     MODPOST 1 modules
> > > make[1]: Leaving directory '/lib/modules/4.14.48-yocto-
> > > standard/build'
> > > root@qemux86-64:/tmp# insmod hellomod.ko
> > > [  419.211616] hellomod: loading out-of-tree module taints
> > > kernel.
> > > [  419.212586] Hello world!
> > > 
> > > This is on the core-image-kernel-dev image, which is the one that
> > > I created to test all this.
> > > 
> > > What image is that using ? some sato sdk one ?
> > 
> > We really need to find you a way to run these. The problem is the
> > qemu
> > graphics piece? You can't have a dummy vncserver or something to
> > direct
> > them at?
> > 
> > The image is a core-image-sato-sdk...
> 
> I was able to trigger the objtool issue with this image, looking at
> fixing it and the other arches now.

Since its image related, is it a missing package dependency? Just
curious why its happening with some images but not your test ones...

Cheers,

Richard