Re: [PATCH] selftests: Makefile: create OUTPUT dir

[Shuah Khan <skhan@linuxfoundation.org>]

On 9/20/24 04:38, Jakub Kicinski wrote:
> On Thu, 19 Sep 2024 09:51:47 -0600 Shuah Khan wrote:
>>> @@ -261,6 +261,7 @@ ifdef INSTALL_PATH
>>>    	@ret=1;	\
>>>    	for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do \
>>>    		BUILD_TARGET=$$BUILD/$$TARGET;	\
>>> +		mkdir -p $$BUILD_TARGET;	\
>>>    		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install \
>>>    				INSTALL_PATH=$(INSTALL_PATH)/$$TARGET \
>>>    				SRC_PATH=$(shell readlink -e $$(pwd)) \
>>
>> Doesn't the "all" target mkdir work for this case? Why do we need another mkdir here?
> 
> I was wondering about that, too. Looks like the code from the all
> target is copy/pasted in the install target except the mkdir line.
> Best fix would be to make the dependency work, I don't understand
> why it doesn't already, tho.

I think this could be the issue:

net main Makefile doesn't have handling for subdirs. It looks
like the way this is handled is by adding an entry to the main
Makefile:

TARGETS += net/af_unix
TARGETS += net/forwarding
TARGETS += net/hsr
TARGETS += net/mptcp
TARGETS += net/openvswitch
TARGETS += net/tcp_ao
TARGETS += net/netfilter

So the solution would be similar adding net/lib to the main
Makefile.

Anders, can you try the above and see if it works.

Another issue - lib/Makefile
TEST_GEN_FILES += csum needs to be TEST_GEN_FILES = csum

thanks,
-- Shuah