[U-Boot] [RFC PATCH 1/4] Adapt config.mk for usage in spl/Makefile

[Wolfgang Denk]

Dear Daniel Schwierzeck,

In message <CACUy__VhV1_eXGW1NuSgLEB1nyVJ51xUXa0vwbY3Tdb=Kvmp2w at mail.gmail.com> you wrote:
> 
> >> +# Allow compiling of C and ASM code parts in different way.
> >> +# Serves also as a replacement for CONFIG_PRELOADER.
> >> +ifneq ($(CONFIG_UBOOT_SPL_BUILD),)
> >> +CPPFLAGS += -DCONFIG_UBOOT_SPL_BUILD
> >> +endif
> >
> > I don't understand this comment.
> 
> Currently we have CONFIG_PRELOADER (and maybe others?) to conditionally
> compile start.S and other code. The idea here is to consolidate those defines
> and to use a common name convention for SPL. My suggestion is something
> like CONFIG_UBOOT_SPL_BUILD. Are there better ideas?

No, I agree with you.  I just don't understand the comment above, i. e.
in which way does this "allow compiling of C and ASM code parts in
different way"?   CPPFLAGS applies the same to .c and .S files, and I
don't see a how this setting would cause different options to be used
for C versus assembler code.

Best regards,

Wolfgang Denk

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