[U-Boot] arch/arm/lib/crt0_arm_efi.o build errors

[Simon Glass]

Hi Alex,

On 20 April 2017 at 10:09, Alexander Graf <agraf at suse.de> wrote:
> On 04/11/2017 05:58 AM, Andreas Färber wrote:
>>
>> Hello,
>>
>> In our OBS builds I occasionally see the following build failure with,
>> e.g., -j 2, which seems to hint at a missing Makefile dependency
>> somewhere:
>>
>>> [  234s]   CC      lib/efi_loader/helloworld.o
>>> [  234s] make[2]: *** No rule to make target
>>> 'arch/arm/lib/crt0_arm_efi.o', needed by 'lib/efi_loader/helloworld.so'.
>>> Stop.
>>> [  234s] make[2]: *** Waiting for unfinished jobs....
>>> [  234s] make[1]: *** [scripts/Makefile.build:425: lib/efi_loader] Error
>>> 2
>>> [  234s] make: *** [Makefile:1234: lib] Error 2
>>> [  234s] make: *** Waiting for unfinished jobs....
>>> [  234s]   CC      arch/arm/lib/cache-cp15.o
>>> [  234s]   CC      arch/arm/lib/psci-dt.o
>>> [  235s]   AS      arch/arm/lib/ashldi3.o
>>> [  235s]   AS      arch/arm/lib/ashrdi3.o
>>> [  235s]   CC      arch/arm/lib/div0.o
>>> [  235s]   AS      arch/arm/lib/div64.o
>>> [  235s]   AS      arch/arm/lib/lib1funcs.o
>>> [  235s]   AS      arch/arm/lib/lshrdi3.o
>>> [  235s]   AS      arch/arm/lib/muldi3.o
>>> [  235s]   AS      arch/arm/lib/uldivmod.o
>>> [  235s]   CC      arch/arm/lib/eabi_compat.o
>>> [  235s]   AS      arch/arm/lib/crt0_arm_efi.o
>>
>> Here it built okay, but too late for helloworld.o.
>>
>>> [  235s]   CC      arch/arm/lib/reloc_arm_efi.o
>>> [  235s]   LD      arch/arm/lib/built-in.o
>>> [  235s]   AR      arch/arm/lib/lib.a
>>> [  236s] error: Bad exit status from /var/tmp/rpm-tmp.3J9RiO (%build)
>>
>> Happens for various defconfigs, hard to reproduce.
>
>
> Simon, you introduced the efi crt0. Any idea what could be going wrong?

It is most likely a race condition due to a missing dependency.

I see that I have two separate rules in Makefile.lib for the crt0
file. I wonder if they can be combined?

Regards,
Simon