[U-Boot] Problem: the build does not recurse into subdirectory

[Simon Glass]

Hi Maxim,

On 19 December 2016 at 10:52, Maxim Sloyko <maxims at google.com> wrote:
> On Sat, Dec 17, 2016 at 2:46 PM, Simon Glass <sjg at chromium.org> wrote:
>> Hi Maxim,
>>
>> On 16 December 2016 at 17:18, Maxim Sloyko <maxims at google.com> wrote:
>>> Greetings,
>>>
>>> I'm working on adding new platform to U-Boot and right now I'm trying
>>> to clean up the directory structure, but running into a problem of
>>> Make not recursing into a subdirectory that I've created.
>>>
>>> in my arch/arm/mach-aspeed/Makefile I have this:
>>>
>>> obj-$(CONFIG_ASPEED_AST2500) += ast2500/ ast2500-board.o
>>>
>>> and then in arch/arm/mach-aspeed/ast2500/Makefile:
>>>
>>> $obj-y += clk_ast2500.o sdram_ast2500.o
>>
>> What is the $ for? I don't think you want that.
>
> Oh my, I can't believe I was that stupid :)
>
> Thanks for the help, that's what the problem was.
>
>>
>>>
>>> When I try to build everything, I get this error:
>>>
>>> arm-linux-gnueabi-ld.bfd: cannot find
>>> arch/arm/mach-aspeed/ast2500/built-in.o: No such file or directory
>>>
>>> If instead in arch/arm/mach-aspeed/Makefile I specify:
>>>
>>> obj-$(CONFIG_ASPEED_AST2500) += ast2500/clk_ast2500.o
>>> ast2500/sdram_ast2500.o ast2500-board.o
>>>
>>> (That is, I just added binaries from the lower level dir explicitly)
>>>
>>> everything builds fine, which means that CONFIG_ASPEED_AST2500 is defined.
>>>
>>> Any ideas what might be the problem here?
>>>
>>> If you need more details, you can see the code here
>>> https://github.com/maksymko/u-boot/tree/aspeed_ast2500_evb/arch/arm/mach-aspeed
>>>
>>> Many thanks for the help!

OK, good!

- Simon