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

[Bruce Ashfield <bruce.ashfield@windriver.com>]

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?

My config never seems to build and run the tests that I need, I had
it work once, and then never again. So I prefer to just build, boot
and run tests manually.

Regardless of the automation, I can easily do "make scripts prepare"
on the kernel-devsrc package, so that is extremely odd that it doesn't
work with that image. I'll try and add devsrc to a sato build and see
of objtool goes nuts.

I'm also unable to build lttng-modules for mips at the moment, so at
least mips is untestable for me.

Bruce

> 
> The image is a core-image-sato-sdk...
> 
> Cheers,
> 
> Richard
>