When an app uses a construct such as:
obj-y = main.o ../../../../samples/bluetooth/gatt/hrs.o
in its makefile, it causes said object module to be built in the
source tree, not in the object tree.
When building massively parallel, this usually resuls on the files
getting corrupted, leading to bugs such as:
https://jira.zephyrproject.org/browse/ZEP-2316https://jira.zephyrproject.org/browse/ZEP-2317
src/../../../../samples/bluetooth/gatt/.gap.o.cmd:3: warning: NUL character seen; rest of line ignored
src/../../../../samples/bluetooth/gatt/.gap.o.cmd:4: warning: NUL character seen; rest of line ignored
src/../../../../samples/bluetooth/gatt/.gap.o.cmd:5: *** missing separator. Stop.
as multiple build are trying to touch the same file in the source tree
and of course, race and causes a build bug.
We have known about this issue for a long time, but it requires
modifications in the build system that there is no time to tackle.
A suggested workaround is to include the source files into a local .c
file, so this is what this patch does, to remove the random noise.
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>